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Merged mga-0-0-3-branch 

- New security model for i810
- Enable i810 dri by default
- New indexed vertex path for mga
- Mga kernel driver rework
- Removed dead files in i810 driver
main
Keith Whitwell 2000-05-25 21:06:02 +00:00
parent 2bb4f7ef42
commit ddcb28259f
18 changed files with 1871 additions and 908 deletions
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linux-core/i810_dma.c
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@ -37,8 +37,12 @@
#include <linux/interrupt.h> /* For task queue support */
#define I810_BUF_FREE 1
#define I810_BUF_USED 0
#define I810_BUF_FREE 2
#define I810_BUF_CLIENT 1
#define I810_BUF_HARDWARE 0
#define I810_BUF_UNMAPPED 0
#define I810_BUF_MAPPED 1
#define I810_REG(reg) 2
#define I810_BASE(reg) ((unsigned long) \
@ -91,7 +95,7 @@ static inline void i810_print_status_page(drm_device_t *dev)
DRM_DEBUG( "hw_status: Reserved : %x\n", temp[3]);
DRM_DEBUG( "hw_status: Driver Counter : %d\n", temp[5]);
for(i = 6; i < dma->buf_count + 6; i++) {
DRM_DEBUG( "buffer status idx : %d used: %d\n", i - 6, temp[i]);
DRM_DEBUG( "buffer status idx : %d used: %d\n", i - 6, temp[i]);
}
}
@ -108,7 +112,7 @@ static drm_buf_t *i810_freelist_get(drm_device_t *dev)
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
/* In use is already a pointer */
used = cmpxchg(buf_priv->in_use, I810_BUF_FREE,
I810_BUF_USED);
I810_BUF_CLIENT);
if(used == I810_BUF_FREE) {
return buf;
}
@ -126,8 +130,8 @@ static int i810_freelist_put(drm_device_t *dev, drm_buf_t *buf)
int used;
/* In use is already a pointer */
used = cmpxchg(buf_priv->in_use, I810_BUF_USED, I810_BUF_FREE);
if(used != I810_BUF_USED) {
used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_FREE);
if(used != I810_BUF_CLIENT) {
DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx);
return -EINVAL;
}
@ -135,28 +139,116 @@ static int i810_freelist_put(drm_device_t *dev, drm_buf_t *buf)
return 0;
}
static int i810_dma_get_buffers(drm_device_t *dev, drm_dma_t *d)
{
int i;
drm_buf_t *buf;
static struct file_operations i810_buffer_fops = {
open: i810_open,
flush: drm_flush,
release: i810_release,
ioctl: i810_ioctl,
mmap: i810_mmap_buffers,
read: drm_read,
fasync: drm_fasync,
poll: drm_poll,
};
for (i = d->granted_count; i < d->request_count; i++) {
buf = i810_freelist_get(dev);
if (!buf) break;
buf->pid = current->pid;
copy_to_user_ret(&d->request_indices[i],
&buf->idx,
sizeof(buf->idx),
-EFAULT);
copy_to_user_ret(&d->request_sizes[i],
&buf->total,
sizeof(buf->total),
-EFAULT);
++d->granted_count;
}
int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_i810_private_t *dev_priv = dev->dev_private;
drm_buf_t *buf = dev_priv->mmap_buffer;
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
vma->vm_flags |= (VM_IO | VM_DONTCOPY);
vma->vm_file = filp;
buf_priv->currently_mapped = I810_BUF_MAPPED;
if (remap_page_range(vma->vm_start,
VM_OFFSET(vma),
vma->vm_end - vma->vm_start,
vma->vm_page_prot)) return -EAGAIN;
return 0;
}
static int i810_map_buffer(drm_buf_t *buf, struct file *filp)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
drm_i810_private_t *dev_priv = dev->dev_private;
struct file_operations *old_fops;
int retcode = 0;
if(buf_priv->currently_mapped == I810_BUF_MAPPED) return -EINVAL;
down(&current->mm->mmap_sem);
old_fops = filp->f_op;
filp->f_op = &i810_buffer_fops;
dev_priv->mmap_buffer = buf;
buf_priv->virtual = (void *)do_mmap(filp, 0, buf->total,
PROT_READ|PROT_WRITE,
MAP_SHARED,
buf->bus_address);
dev_priv->mmap_buffer = NULL;
filp->f_op = old_fops;
if ((unsigned long)buf_priv->virtual > -1024UL) {
/* Real error */
DRM_DEBUG("mmap error\n");
retcode = (signed int)buf_priv->virtual;
buf_priv->virtual = 0;
}
up(&current->mm->mmap_sem);
return retcode;
}
static int i810_unmap_buffer(drm_buf_t *buf)
{
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
int retcode = 0;
if(buf_priv->currently_mapped != I810_BUF_MAPPED) return -EINVAL;
down(&current->mm->mmap_sem);
retcode = do_munmap((unsigned long)buf_priv->virtual,
(size_t) buf->total);
buf_priv->currently_mapped = I810_BUF_UNMAPPED;
buf_priv->virtual = 0;
up(&current->mm->mmap_sem);
return retcode;
}
static int i810_dma_get_buffer(drm_device_t *dev, drm_i810_dma_t *d,
struct file *filp)
{
drm_file_t *priv = filp->private_data;
drm_buf_t *buf;
drm_i810_buf_priv_t *buf_priv;
int retcode = 0;
buf = i810_freelist_get(dev);
if (!buf) {
retcode = -ENOMEM;
DRM_DEBUG("%s retcode %d\n", __FUNCTION__, retcode);
goto out_get_buf;
}
retcode = i810_map_buffer(buf, filp);
if(retcode) {
i810_freelist_put(dev, buf);
DRM_DEBUG("mapbuf failed in %s retcode %d\n",
__FUNCTION__, retcode);
goto out_get_buf;
}
buf->pid = priv->pid;
buf_priv = buf->dev_private;
d->granted = 1;
d->request_idx = buf->idx;
d->request_size = buf->total;
d->virtual = buf_priv->virtual;
out_get_buf:
return retcode;
}
static unsigned long i810_alloc_page(drm_device_t *dev)
{
unsigned long address;
@ -185,7 +277,10 @@ static void i810_free_page(drm_device_t *dev, unsigned long page)
static int i810_dma_cleanup(drm_device_t *dev)
{
drm_device_dma_t *dma = dev->dma;
if(dev->dev_private) {
int i;
drm_i810_private_t *dev_priv =
(drm_i810_private_t *) dev->dev_private;
@ -201,6 +296,12 @@ static int i810_dma_cleanup(drm_device_t *dev)
drm_free(dev->dev_private, sizeof(drm_i810_private_t),
DRM_MEM_DRIVER);
dev->dev_private = NULL;
for (i = 0; i < dma->buf_count; i++) {
drm_buf_t *buf = dma->buflist[ i ];
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
drm_ioremapfree(buf_priv->kernel_virtual, buf->total);
}
}
return 0;
}
@ -211,6 +312,7 @@ static int i810_wait_ring(drm_device_t *dev, int n)
drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
int iters = 0;
unsigned long end;
unsigned int last_head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
end = jiffies + (HZ*3);
while (ring->space < n) {
@ -218,9 +320,11 @@ static int i810_wait_ring(drm_device_t *dev, int n)
ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
ring->space = ring->head - (ring->tail+8);
if (ring->space < 0) ring->space += ring->Size;
if (ring->space < 0) ring->space += ring->Size;
if (ring->head != last_head)
end = jiffies + (HZ*3);
iters++;
if((signed)(end - jiffies) <= 0) {
DRM_ERROR("space: %d wanted %d\n", ring->space, n);
@ -250,9 +354,9 @@ static int i810_freelist_init(drm_device_t *dev)
{
drm_device_dma_t *dma = dev->dma;
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
u8 *hw_status = (u8 *)dev_priv->hw_status_page;
int i;
int my_idx = 24;
u32 *hw_status = (u32 *)(dev_priv->hw_status_page + my_idx);
int i;
if(dma->buf_count > 1019) {
/* Not enough space in the status page for the freelist */
@ -263,11 +367,14 @@ static int i810_freelist_init(drm_device_t *dev)
drm_buf_t *buf = dma->buflist[ i ];
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
buf_priv->in_use = hw_status + my_idx;
DRM_DEBUG("buf_priv->in_use : %p\n", buf_priv->in_use);
*buf_priv->in_use = I810_BUF_FREE;
buf_priv->in_use = hw_status++;
buf_priv->my_use_idx = my_idx;
my_idx += 4;
*buf_priv->in_use = I810_BUF_FREE;
buf_priv->kernel_virtual = drm_ioremap(buf->bus_address,
buf->total);
}
return 0;
}
@ -301,9 +408,11 @@ static int i810_dma_initialize(drm_device_t *dev,
dev_priv->ring.Start = init->ring_start;
dev_priv->ring.End = init->ring_end;
dev_priv->ring.Size = init->ring_size;
dev_priv->ring.virtual_start = drm_ioremap(dev->agp->base +
init->ring_start,
init->ring_size);
dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
if (dev_priv->ring.virtual_start == NULL) {
@ -312,6 +421,17 @@ static int i810_dma_initialize(drm_device_t *dev,
" ring buffer\n");
return -ENOMEM;
}
dev_priv->w = init->w;
dev_priv->h = init->h;
dev_priv->pitch = init->pitch;
dev_priv->back_offset = init->back_offset;
dev_priv->depth_offset = init->depth_offset;
dev_priv->front_di1 = init->front_offset | init->pitch_bits;
dev_priv->back_di1 = init->back_offset | init->pitch_bits;
dev_priv->zi1 = init->depth_offset | init->pitch_bits;
/* Program Hardware Status Page */
dev_priv->hw_status_page = i810_alloc_page(dev);
@ -366,37 +486,270 @@ int i810_dma_init(struct inode *inode, struct file *filp,
return retcode;
}
static void i810_dma_dispatch_general(drm_device_t *dev, drm_buf_t *buf,
int used )
{
drm_i810_private_t *dev_priv = dev->dev_private;
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
unsigned long address = (unsigned long)buf->bus_address;
unsigned long start = address - dev->agp->base;
RING_LOCALS;
dev_priv->counter++;
DRM_DEBUG( "dispatch counter : %ld\n", dev_priv->counter);
DRM_DEBUG( "i810_dma_dispatch\n");
DRM_DEBUG( "start : 0x%lx\n", start);
DRM_DEBUG( "used : 0x%x\n", used);
DRM_DEBUG( "start + used - 4 : 0x%lx\n", start + used - 4);
i810_kernel_lost_context(dev);
BEGIN_LP_RING(10);
OUT_RING( CMD_OP_BATCH_BUFFER );
OUT_RING( start | BB1_PROTECTED );
OUT_RING( start + used - 4 );
OUT_RING( CMD_STORE_DWORD_IDX );
OUT_RING( 20 );
OUT_RING( dev_priv->counter );
OUT_RING( CMD_STORE_DWORD_IDX );
OUT_RING( buf_priv->my_use_idx );
OUT_RING( I810_BUF_FREE );
OUT_RING( CMD_REPORT_HEAD );
ADVANCE_LP_RING();
/* Most efficient way to verify state for the i810 is as it is
* emitted. Non-conformant state is silently dropped.
*
* Use 'volatile' & local var tmp to force the emitted values to be
* identical to the verified ones.
*/
static void i810EmitContextVerified( drm_device_t *dev,
volatile unsigned int *code )
{
drm_i810_private_t *dev_priv = dev->dev_private;
int i, j = 0;
unsigned int tmp;
RING_LOCALS;
BEGIN_LP_RING( I810_CTX_SETUP_SIZE );
OUT_RING( GFX_OP_COLOR_FACTOR );
OUT_RING( code[I810_CTXREG_CF1] );
OUT_RING( GFX_OP_STIPPLE );
OUT_RING( code[I810_CTXREG_ST1] );
for ( i = 4 ; i < I810_CTX_SETUP_SIZE ; i++ ) {
tmp = code[i];
if ((tmp & (7<<29)) == (3<<29) &&
(tmp & (0x1f<<24)) < (0x1d<<24))
{
OUT_RING( tmp );
j++;
}
}
if (j & 1)
OUT_RING( 0 );
ADVANCE_LP_RING();
}
static void i810EmitTexVerified( drm_device_t *dev,
volatile unsigned int *code )
{
drm_i810_private_t *dev_priv = dev->dev_private;
int i, j = 0;
unsigned int tmp;
RING_LOCALS;
BEGIN_LP_RING( I810_TEX_SETUP_SIZE );
OUT_RING( GFX_OP_MAP_INFO );
OUT_RING( code[I810_TEXREG_MI1] );
OUT_RING( code[I810_TEXREG_MI2] );
OUT_RING( code[I810_TEXREG_MI3] );
for ( i = 4 ; i < I810_TEX_SETUP_SIZE ; i++ ) {
tmp = code[i];
if ((tmp & (7<<29)) == (3<<29) &&
(tmp & (0x1f<<24)) < (0x1d<<24))
{
OUT_RING( tmp );
j++;
}
}
if (j & 1)
OUT_RING( 0 );
ADVANCE_LP_RING();
}
/* Need to do some additional checking when setting the dest buffer.
*/
static void i810EmitDestVerified( drm_device_t *dev,
volatile unsigned int *code )
{
drm_i810_private_t *dev_priv = dev->dev_private;
unsigned int tmp;
RING_LOCALS;
BEGIN_LP_RING( I810_DEST_SETUP_SIZE + 2 );
tmp = code[I810_DESTREG_DI1];
if (tmp == dev_priv->front_di1 || tmp == dev_priv->back_di1) {
OUT_RING( CMD_OP_DESTBUFFER_INFO );
OUT_RING( tmp );
} else
DRM_DEBUG("bad di1 %x (allow %x or %x)\n",
tmp, dev_priv->front_di1, dev_priv->back_di1);
/* invarient:
*/
OUT_RING( CMD_OP_Z_BUFFER_INFO );
OUT_RING( dev_priv->zi1 );
OUT_RING( GFX_OP_DESTBUFFER_VARS );
OUT_RING( code[I810_DESTREG_DV1] );
OUT_RING( GFX_OP_DRAWRECT_INFO );
OUT_RING( code[I810_DESTREG_DR1] );
OUT_RING( code[I810_DESTREG_DR2] );
OUT_RING( code[I810_DESTREG_DR3] );
OUT_RING( code[I810_DESTREG_DR4] );
OUT_RING( 0 );
ADVANCE_LP_RING();
}
static void i810EmitState( drm_device_t *dev )
{
drm_i810_private_t *dev_priv = dev->dev_private;
drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
unsigned int dirty = sarea_priv->dirty;
if (dirty & I810_UPLOAD_BUFFERS) {
i810EmitDestVerified( dev, sarea_priv->BufferState );
sarea_priv->dirty &= ~I810_UPLOAD_BUFFERS;
}
if (dirty & I810_UPLOAD_CTX) {
i810EmitContextVerified( dev, sarea_priv->ContextState );
sarea_priv->dirty &= ~I810_UPLOAD_CTX;
}
if (dirty & I810_UPLOAD_TEX0) {
i810EmitTexVerified( dev, sarea_priv->TexState[0] );
sarea_priv->dirty &= ~I810_UPLOAD_TEX0;
}
if (dirty & I810_UPLOAD_TEX1) {
i810EmitTexVerified( dev, sarea_priv->TexState[1] );
sarea_priv->dirty &= ~I810_UPLOAD_TEX1;
}
}
/* need to verify
*/
static void i810_dma_dispatch_clear( drm_device_t *dev, int flags,
unsigned int clear_color,
unsigned int clear_zval )
{
drm_i810_private_t *dev_priv = dev->dev_private;
drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
int nbox = sarea_priv->nbox;
drm_clip_rect_t *pbox = sarea_priv->boxes;
int pitch = dev_priv->pitch;
int cpp = 2;
int i;
RING_LOCALS;
i810_kernel_lost_context(dev);
if (nbox > I810_NR_SAREA_CLIPRECTS)
nbox = I810_NR_SAREA_CLIPRECTS;
for (i = 0 ; i < nbox ; i++, pbox++) {
unsigned int x = pbox->x1;
unsigned int y = pbox->y1;
unsigned int width = (pbox->x2 - x) * cpp;
unsigned int height = pbox->y2 - y;
unsigned int start = y * pitch + x * cpp;
if (pbox->x1 > pbox->x2 ||
pbox->y1 > pbox->y2 ||
pbox->x2 > dev_priv->w ||
pbox->y2 > dev_priv->h)
continue;
if ( flags & I810_FRONT ) {
DRM_DEBUG("clear front\n");
BEGIN_LP_RING( 6 );
OUT_RING( BR00_BITBLT_CLIENT |
BR00_OP_COLOR_BLT | 0x3 );
OUT_RING( BR13_SOLID_PATTERN | (0xF0 << 16) | pitch );
OUT_RING( (height << 16) | width );
OUT_RING( start );
OUT_RING( clear_color );
OUT_RING( 0 );
ADVANCE_LP_RING();
}
if ( flags & I810_BACK ) {
DRM_DEBUG("clear back\n");
BEGIN_LP_RING( 6 );
OUT_RING( BR00_BITBLT_CLIENT |
BR00_OP_COLOR_BLT | 0x3 );
OUT_RING( BR13_SOLID_PATTERN | (0xF0 << 16) | pitch );
OUT_RING( (height << 16) | width );
OUT_RING( dev_priv->back_offset + start );
OUT_RING( clear_color );
OUT_RING( 0 );
ADVANCE_LP_RING();
}
if ( flags & I810_DEPTH ) {
DRM_DEBUG("clear depth\n");
BEGIN_LP_RING( 6 );
OUT_RING( BR00_BITBLT_CLIENT |
BR00_OP_COLOR_BLT | 0x3 );
OUT_RING( BR13_SOLID_PATTERN | (0xF0 << 16) | pitch );
OUT_RING( (height << 16) | width );
OUT_RING( dev_priv->depth_offset + start );
OUT_RING( clear_zval );
OUT_RING( 0 );
ADVANCE_LP_RING();
}
}
}
static void i810_dma_dispatch_swap( drm_device_t *dev )
{
drm_i810_private_t *dev_priv = dev->dev_private;
drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
int nbox = sarea_priv->nbox;
drm_clip_rect_t *pbox = sarea_priv->boxes;
int pitch = dev_priv->pitch;
int cpp = 2;
int ofs = dev_priv->back_offset;
int i;
RING_LOCALS;
DRM_DEBUG("swapbuffers\n");
i810_kernel_lost_context(dev);
if (nbox > I810_NR_SAREA_CLIPRECTS)
nbox = I810_NR_SAREA_CLIPRECTS;
for (i = 0 ; i < nbox; i++, pbox++)
{
unsigned int w = pbox->x2 - pbox->x1;
unsigned int h = pbox->y2 - pbox->y1;
unsigned int dst = pbox->x1*cpp + pbox->y1*pitch;
unsigned int start = ofs + dst;
if (pbox->x1 > pbox->x2 ||
pbox->y1 > pbox->y2 ||
pbox->x2 > dev_priv->w ||
pbox->y2 > dev_priv->h)
continue;
DRM_DEBUG("dispatch swap %d,%d-%d,%d!\n",
pbox[i].x1, pbox[i].y1,
pbox[i].x2, pbox[i].y2);
BEGIN_LP_RING( 6 );
OUT_RING( BR00_BITBLT_CLIENT | BR00_OP_SRC_COPY_BLT | 0x4 );
OUT_RING( pitch | (0xCC << 16));
OUT_RING( (h << 16) | (w * cpp));
OUT_RING( dst );
OUT_RING( pitch );
OUT_RING( start );
ADVANCE_LP_RING();
}
}
static void i810_dma_dispatch_vertex(drm_device_t *dev,
drm_buf_t *buf,
int discard,
@ -409,14 +762,29 @@ static void i810_dma_dispatch_vertex(drm_device_t *dev,
int nbox = sarea_priv->nbox;
unsigned long address = (unsigned long)buf->bus_address;
unsigned long start = address - dev->agp->base;
int i = 0;
int i = 0, u;
RING_LOCALS;
i810_kernel_lost_context(dev);
if (nbox > I810_NR_SAREA_CLIPRECTS)
nbox = I810_NR_SAREA_CLIPRECTS;
DRM_DEBUG("dispatch vertex addr 0x%lx, used 0x%x nbox %d\n",
if (discard) {
u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
I810_BUF_HARDWARE);
if(u != I810_BUF_CLIENT) {
DRM_DEBUG("xxxx 2\n");
}
}
if (used > 4*1024)
used = 0;
if (sarea_priv->dirty)
i810EmitState( dev );
DRM_DEBUG("dispatch vertex addr 0x%lx, used 0x%x nbox %d\n",
address, used, nbox);
dev_priv->counter++;
@ -425,8 +793,20 @@ static void i810_dma_dispatch_vertex(drm_device_t *dev,
DRM_DEBUG( "start : %lx\n", start);
DRM_DEBUG( "used : %d\n", used);
DRM_DEBUG( "start + used - 4 : %ld\n", start + used - 4);
i810_kernel_lost_context(dev);
if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
*(u32 *)buf_priv->virtual = (GFX_OP_PRIMITIVE |
sarea_priv->vertex_prim |
((used/4)-2));
if (used & 4) {
*(u32 *)((u32)buf_priv->virtual + used) = 0;
used += 4;
}
i810_unmap_buffer(buf);
}
if (used) {
do {
if (i < nbox) {
@ -434,7 +814,7 @@ static void i810_dma_dispatch_vertex(drm_device_t *dev,
OUT_RING( GFX_OP_SCISSOR | SC_UPDATE_SCISSOR |
SC_ENABLE );
OUT_RING( GFX_OP_SCISSOR_INFO );
OUT_RING( box[i].x1 | (box[i].y1 << 16) );
OUT_RING( box[i].x1 | (box[i].y1<<16) );
OUT_RING( (box[i].x2-1) | ((box[i].y2-1)<<16) );
ADVANCE_LP_RING();
}
@ -479,7 +859,9 @@ static void i810_dma_service(int irq, void *device, struct pt_regs *regs)
temp = temp & ~(0x6000);
if(temp != 0) I810_WRITE16(I810REG_INT_IDENTITY_R,
temp); /* Clear all interrupts */
else
return;
queue_task(&dev->tq, &tq_immediate);
mark_bh(IMMEDIATE_BH);
}
@ -539,7 +921,7 @@ int i810_irq_install(drm_device_t *dev, int irq)
/* Install handler */
if ((retcode = request_irq(dev->irq,
i810_dma_service,
0,
SA_SHIRQ,
dev->devname,
dev))) {
down(&dev->struct_sem);
@ -560,6 +942,9 @@ int i810_irq_uninstall(drm_device_t *dev)
int irq;
u16 temp;
/* return 0; */
down(&dev->struct_sem);
irq = dev->irq;
dev->irq = 0;
@ -618,10 +1003,15 @@ static inline void i810_dma_emit_flush(drm_device_t *dev)
RING_LOCALS;
i810_kernel_lost_context(dev);
BEGIN_LP_RING(2);
OUT_RING( CMD_REPORT_HEAD );
OUT_RING( GFX_OP_USER_INTERRUPT );
OUT_RING( GFX_OP_USER_INTERRUPT );
ADVANCE_LP_RING();
/* i810_wait_ring( dev, dev_priv->ring.Size - 8 ); */
/* atomic_set(&dev_priv->flush_done, 1); */
/* wake_up_interruptible(&dev_priv->flush_queue); */
}
static inline void i810_dma_quiescent_emit(drm_device_t *dev)
@ -630,13 +1020,17 @@ static inline void i810_dma_quiescent_emit(drm_device_t *dev)
RING_LOCALS;
i810_kernel_lost_context(dev);
BEGIN_LP_RING(4);
BEGIN_LP_RING(4);
OUT_RING( INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE );
OUT_RING( CMD_REPORT_HEAD );
OUT_RING( GFX_OP_USER_INTERRUPT );
OUT_RING( 0 );
OUT_RING( 0 );
OUT_RING( GFX_OP_USER_INTERRUPT );
ADVANCE_LP_RING();
/* i810_wait_ring( dev, dev_priv->ring.Size - 8 ); */
/* atomic_set(&dev_priv->flush_done, 1); */
/* wake_up_interruptible(&dev_priv->flush_queue); */
}
static void i810_dma_quiescent(drm_device_t *dev)
@ -676,8 +1070,9 @@ static int i810_flush_queue(drm_device_t *dev)
{
DECLARE_WAITQUEUE(entry, current);
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
drm_device_dma_t *dma = dev->dma;
unsigned long end;
int ret = 0;
int i, ret = 0;
if(dev_priv == NULL) {
return 0;
@ -702,7 +1097,21 @@ static int i810_flush_queue(drm_device_t *dev)
current->state = TASK_RUNNING;
remove_wait_queue(&dev_priv->flush_queue, &entry);
for (i = 0; i < dma->buf_count; i++) {
drm_buf_t *buf = dma->buflist[ i ];
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
int used = cmpxchg(buf_priv->in_use, I810_BUF_HARDWARE,
I810_BUF_FREE);
if (used == I810_BUF_HARDWARE)
DRM_DEBUG("reclaimed from HARDWARE\n");
if (used == I810_BUF_CLIENT)
DRM_DEBUG("still on client HARDWARE\n");
}
return ret;
}
@ -713,20 +1122,23 @@ void i810_reclaim_buffers(drm_device_t *dev, pid_t pid)
int i;
if (!dma) return;
if(dev->dev_private == NULL) return;
if(dma->buflist == NULL) return;
if (!dev->dev_private) return;
if (!dma->buflist) return;
i810_flush_queue(dev);
for (i = 0; i < dma->buf_count; i++) {
drm_buf_t *buf = dma->buflist[ i ];
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
/* Only buffers that need to get reclaimed ever
* get set to free
*/
if (buf->pid == pid && buf_priv) {
cmpxchg(buf_priv->in_use,
I810_BUF_USED, I810_BUF_FREE);
int used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
I810_BUF_FREE);
if (used == I810_BUF_CLIENT)
DRM_DEBUG("reclaimed from client\n");
if(buf_priv->currently_mapped == I810_BUF_MAPPED)
buf_priv->currently_mapped = I810_BUF_UNMAPPED;
}
}
}
@ -760,19 +1172,6 @@ int i810_lock(struct inode *inode, struct file *filp, unsigned int cmd,
*/
if (!ret) {
#if 0
if (_DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)
!= lock.context) {
long j = jiffies - dev->lock.lock_time;
if (j > 0 && j <= DRM_LOCK_SLICE) {
/* Can't take lock if we just had it and
there is contention. */
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(j);
}
}
#endif
add_wait_queue(&dev->lock.lock_queue, &entry);
for (;;) {
if (!dev->lock.hw_lock) {
@ -829,76 +1228,22 @@ int i810_flush_ioctl(struct inode *inode, struct file *filp,
return 0;
}
static int i810DmaGeneral(drm_device_t *dev, drm_i810_general_t *args)
{
drm_device_dma_t *dma = dev->dma;
drm_buf_t *buf = dma->buflist[ args->idx ];
if (!args->used) {
i810_freelist_put(dev, buf);
} else {
i810_dma_dispatch_general( dev, buf, args->used );
atomic_add(args->used, &dma->total_bytes);
atomic_inc(&dma->total_dmas);
}
return 0;
}
static int i810DmaVertex(drm_device_t *dev, drm_i810_vertex_t *args)
{
drm_device_dma_t *dma = dev->dma;
drm_buf_t *buf = dma->buflist[ args->idx ];
i810_dma_dispatch_vertex( dev, buf, args->discard, args->used );
atomic_add(args->used, &dma->total_bytes);
atomic_inc(&dma->total_dmas);
return 0;
}
int i810_dma_general(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_i810_general_t general;
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
u32 *hw_status = (u32 *)dev_priv->hw_status_page;
drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
dev_priv->sarea_priv;
int retcode = 0;
copy_from_user_ret(&general, (drm_i810_general_t *)arg, sizeof(general),
-EFAULT);
DRM_DEBUG("i810 dma general idx %d used %d\n",
general.idx, general.used);
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i810_dma_general called without lock held\n");
return -EINVAL;
}
retcode = i810DmaGeneral(dev, &general);
sarea_priv->last_enqueue = dev_priv->counter-1;
sarea_priv->last_dispatch = (int) hw_status[5];
return retcode;
}
int i810_dma_vertex(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_device_dma_t *dma = dev->dma;
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
u32 *hw_status = (u32 *)dev_priv->hw_status_page;
drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
dev_priv->sarea_priv;
drm_i810_vertex_t vertex;
int retcode = 0;
copy_from_user_ret(&vertex, (drm_i810_vertex_t *)arg, sizeof(vertex),
-EFAULT);
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i810_dma_vertex called without lock held\n");
return -EINVAL;
@ -907,12 +1252,56 @@ int i810_dma_vertex(struct inode *inode, struct file *filp,
DRM_DEBUG("i810 dma vertex, idx %d used %d discard %d\n",
vertex.idx, vertex.used, vertex.discard);
retcode = i810DmaVertex(dev, &vertex);
i810_dma_dispatch_vertex( dev,
dma->buflist[ vertex.idx ],
vertex.discard, vertex.used );
atomic_add(vertex.used, &dma->total_bytes);
atomic_inc(&dma->total_dmas);
sarea_priv->last_enqueue = dev_priv->counter-1;
sarea_priv->last_dispatch = (int) hw_status[5];
return retcode;
return 0;
}
int i810_clear_bufs(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_i810_clear_t clear;
copy_from_user_ret(&clear, (drm_i810_clear_t *)arg, sizeof(clear),
-EFAULT);
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i810_clear_bufs called without lock held\n");
return -EINVAL;
}
i810_dma_dispatch_clear( dev, clear.flags,
clear.clear_color,
clear.clear_depth );
return 0;
}
int i810_swap_bufs(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
DRM_DEBUG("i810_swap_bufs\n");
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i810_swap_buf called without lock held\n");
return -EINVAL;
}
i810_dma_dispatch_swap( dev );
return 0;
}
int i810_getage(struct inode *inode, struct file *filp, unsigned int cmd,
@ -929,53 +1318,32 @@ int i810_getage(struct inode *inode, struct file *filp, unsigned int cmd,
return 0;
}
int i810_dma(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
int i810_getbuf(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_device_dma_t *dma = dev->dma;
int retcode = 0;
drm_dma_t d;
drm_i810_dma_t d;
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
u32 *hw_status = (u32 *)dev_priv->hw_status_page;
drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
dev_priv->sarea_priv;
copy_from_user_ret(&d, (drm_dma_t *)arg, sizeof(d), -EFAULT);
DRM_DEBUG("%d %d: %d send, %d req\n",
current->pid, d.context, d.send_count, d.request_count);
DRM_DEBUG("getbuf\n");
copy_from_user_ret(&d, (drm_i810_dma_t *)arg, sizeof(d), -EFAULT);
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i810_dma called without lock held\n");
return -EINVAL;
}
/* Please don't send us buffers.
*/
if (d.send_count != 0) {
DRM_ERROR("Process %d trying to send %d buffers via drmDMA\n",
current->pid, d.send_count);
return -EINVAL;
}
/* We'll send you buffers.
*/
if (d.request_count < 0 || d.request_count > dma->buf_count) {
DRM_ERROR("Process %d trying to get %d buffers (of %d max)\n",
current->pid, d.request_count, dma->buf_count);
return -EINVAL;
}
d.granted_count = 0;
d.granted = 0;
if (!retcode && d.request_count) {
retcode = i810_dma_get_buffers(dev, &d);
}
retcode = i810_dma_get_buffer(dev, &d, filp);
DRM_DEBUG("i810_dma: %d returning, granted = %d\n",
current->pid, d.granted_count);
DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
current->pid, retcode, d.granted);
copy_to_user_ret((drm_dma_t *)arg, &d, sizeof(d), -EFAULT);
sarea_priv->last_dispatch = (int) hw_status[5];

129
linux-core/i810_drm.h
View File

@ -5,35 +5,112 @@
* if you change them, you must change the defines in the Xserver.
*/
/* Might one day want to support the client-side ringbuffer code again.
*/
#ifndef _I810_DEFINES_
#define _I810_DEFINES_
#define I810_USE_BATCH 1
#define I810_DMA_BUF_ORDER 12
#define I810_DMA_BUF_SZ (1<<I810_DMA_BUF_ORDER)
#define I810_DMA_BUF_NR 256
#define I810_NR_SAREA_CLIPRECTS 2
#define I810_NR_SAREA_CLIPRECTS 8
/* Each region is a minimum of 64k, and there are at most 64 of them.
*/
#define I810_NR_TEX_REGIONS 64
#define I810_LOG_MIN_TEX_REGION_SIZE 16
#endif
#define I810_UPLOAD_TEX0IMAGE 0x1 /* handled clientside */
#define I810_UPLOAD_TEX1IMAGE 0x2 /* handled clientside */
#define I810_UPLOAD_CTX 0x4
#define I810_UPLOAD_BUFFERS 0x8
#define I810_UPLOAD_TEX0 0x10
#define I810_UPLOAD_TEX1 0x20
#define I810_UPLOAD_CLIPRECTS 0x40
/* Indices into buf.Setup where various bits of state are mirrored per
* context and per buffer. These can be fired at the card as a unit,
* or in a piecewise fashion as required.
*/
/* Destbuffer state
* - backbuffer linear offset and pitch -- invarient in the current dri
* - zbuffer linear offset and pitch -- also invarient
* - drawing origin in back and depth buffers.
*
* Keep the depth/back buffer state here to acommodate private buffers
* in the future.
*/
#define I810_DESTREG_DI0 0 /* CMD_OP_DESTBUFFER_INFO (2 dwords) */
#define I810_DESTREG_DI1 1
#define I810_DESTREG_DV0 2 /* GFX_OP_DESTBUFFER_VARS (2 dwords) */
#define I810_DESTREG_DV1 3
#define I810_DESTREG_DR0 4 /* GFX_OP_DRAWRECT_INFO (4 dwords) */
#define I810_DESTREG_DR1 5
#define I810_DESTREG_DR2 6
#define I810_DESTREG_DR3 7
#define I810_DESTREG_DR4 8
#define I810_DEST_SETUP_SIZE 10
/* Context state
*/
#define I810_CTXREG_CF0 0 /* GFX_OP_COLOR_FACTOR */
#define I810_CTXREG_CF1 1
#define I810_CTXREG_ST0 2 /* GFX_OP_STIPPLE */
#define I810_CTXREG_ST1 3
#define I810_CTXREG_VF 4 /* GFX_OP_VERTEX_FMT */
#define I810_CTXREG_MT 5 /* GFX_OP_MAP_TEXELS */
#define I810_CTXREG_MC0 6 /* GFX_OP_MAP_COLOR_STAGES - stage 0 */
#define I810_CTXREG_MC1 7 /* GFX_OP_MAP_COLOR_STAGES - stage 1 */
#define I810_CTXREG_MC2 8 /* GFX_OP_MAP_COLOR_STAGES - stage 2 */
#define I810_CTXREG_MA0 9 /* GFX_OP_MAP_ALPHA_STAGES - stage 0 */
#define I810_CTXREG_MA1 10 /* GFX_OP_MAP_ALPHA_STAGES - stage 1 */
#define I810_CTXREG_MA2 11 /* GFX_OP_MAP_ALPHA_STAGES - stage 2 */
#define I810_CTXREG_SDM 12 /* GFX_OP_SRC_DEST_MONO */
#define I810_CTXREG_FOG 13 /* GFX_OP_FOG_COLOR */
#define I810_CTXREG_B1 14 /* GFX_OP_BOOL_1 */
#define I810_CTXREG_B2 15 /* GFX_OP_BOOL_2 */
#define I810_CTXREG_LCS 16 /* GFX_OP_LINEWIDTH_CULL_SHADE_MODE */
#define I810_CTXREG_PV 17 /* GFX_OP_PV_RULE -- Invarient! */
#define I810_CTXREG_ZA 18 /* GFX_OP_ZBIAS_ALPHAFUNC */
#define I810_CTXREG_AA 19 /* GFX_OP_ANTIALIAS */
#define I810_CTX_SETUP_SIZE 20
/* Texture state (per tex unit)
*/
#define I810_TEXREG_MI0 0 /* GFX_OP_MAP_INFO (4 dwords) */
#define I810_TEXREG_MI1 1
#define I810_TEXREG_MI2 2
#define I810_TEXREG_MI3 3
#define I810_TEXREG_MF 4 /* GFX_OP_MAP_FILTER */
#define I810_TEXREG_MLC 5 /* GFX_OP_MAP_LOD_CTL */
#define I810_TEXREG_MLL 6 /* GFX_OP_MAP_LOD_LIMITS */
#define I810_TEXREG_MCS 7 /* GFX_OP_MAP_COORD_SETS ??? */
#define I810_TEX_SETUP_SIZE 8
#define I810_FRONT 0x1
#define I810_BACK 0x2
#define I810_DEPTH 0x4
typedef struct _drm_i810_init {
enum {
I810_INIT_DMA = 0x01,
I810_CLEANUP_DMA = 0x02
enum {
I810_INIT_DMA = 0x01,
I810_CLEANUP_DMA = 0x02
} func;
int ring_map_idx;
int buffer_map_idx;
int ring_map_idx;
int buffer_map_idx;
int sarea_priv_offset;
unsigned long ring_start;
unsigned long ring_end;
unsigned long ring_size;
unsigned int ring_start;
unsigned int ring_end;
unsigned int ring_size;
unsigned int front_offset;
unsigned int back_offset;
unsigned int depth_offset;
unsigned int w;
unsigned int h;
unsigned int pitch;
unsigned int pitch_bits;
} drm_i810_init_t;
/* Warning: If you change the SAREA structure you must change the Xserver
@ -46,6 +123,11 @@ typedef struct _drm_i810_tex_region {
} drm_i810_tex_region_t;
typedef struct _drm_i810_sarea {
unsigned int ContextState[I810_CTX_SETUP_SIZE];
unsigned int BufferState[I810_DEST_SETUP_SIZE];
unsigned int TexState[2][I810_TEX_SETUP_SIZE];
unsigned int dirty;
unsigned int nbox;
drm_clip_rect_t boxes[I810_NR_SAREA_CLIPRECTS];
@ -72,12 +154,18 @@ typedef struct _drm_i810_sarea {
int last_dispatch; /* age of the most recently dispatched buffer */
int last_quiescent; /* */
int ctxOwner; /* last context to upload state */
int vertex_prim;
} drm_i810_sarea_t;
typedef struct _drm_i810_general {
int idx;
int used;
} drm_i810_general_t;
typedef struct _drm_i810_clear {
int clear_color;
int clear_depth;
int flags;
} drm_i810_clear_t;
/* These may be placeholders if we have more cliprects than
* I810_NR_SAREA_CLIPRECTS. In that case, the client sets discard to
@ -90,4 +178,11 @@ typedef struct _drm_i810_vertex {
int discard; /* client is finished with the buffer? */
} drm_i810_vertex_t;
typedef struct drm_i810_dma {
void *virtual;
int request_idx;
int request_size;
int granted;
} drm_i810_dma_t;
#endif /* _I810_DRM_H_ */

8
linux-core/i810_drv.c
View File

@ -80,7 +80,6 @@ static drm_ioctl_desc_t i810_ioctls[] = {
[DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS)] = { i810_addbufs, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS)] = { i810_markbufs, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS)] = { i810_infobufs, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS)] = { i810_mapbufs, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS)] = { i810_freebufs, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)] = { i810_addctx, 1, 1 },
@ -93,8 +92,6 @@ static drm_ioctl_desc_t i810_ioctls[] = {
[DRM_IOCTL_NR(DRM_IOCTL_ADD_DRAW)] = { drm_adddraw, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_RM_DRAW)] = { drm_rmdraw, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_DMA)] = { i810_dma, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_LOCK)] = { i810_lock, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)] = { i810_unlock, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_FINISH)] = { drm_finish, 1, 0 },
@ -107,11 +104,14 @@ static drm_ioctl_desc_t i810_ioctls[] = {
[DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE)] = { drm_agp_free, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND)] = { drm_agp_bind, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND)] = { drm_agp_unbind, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_I810_INIT)] = { i810_dma_init, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_I810_VERTEX)] = { i810_dma_vertex, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_I810_DMA)] = { i810_dma_general,1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_I810_CLEAR)] = { i810_clear_bufs, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_I810_FLUSH)] = { i810_flush_ioctl,1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_I810_GETAGE)] = { i810_getage, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_I810_GETBUF)] = { i810_getbuf, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_I810_SWAP)] = { i810_swap_bufs, 1, 0 },
};
#define I810_IOCTL_COUNT DRM_ARRAY_SIZE(i810_ioctls)

66
linux-core/i810_drv.h
View File

@ -32,6 +32,16 @@
#ifndef _I810_DRV_H_
#define _I810_DRV_H_
typedef struct drm_i810_buf_priv {
u32 *in_use;
int my_use_idx;
int currently_mapped;
void *virtual;
void *kernel_virtual;
int map_count;
struct vm_area_struct *vma;
} drm_i810_buf_priv_t;
typedef struct _drm_i810_ring_buffer{
int tail_mask;
unsigned long Start;
@ -55,6 +65,15 @@ typedef struct drm_i810_private {
atomic_t flush_done;
wait_queue_head_t flush_queue; /* Processes waiting until flush */
drm_buf_t *mmap_buffer;
u32 front_di1, back_di1, zi1;
int back_offset;
int depth_offset;
int w, h;
int pitch;
} drm_i810_private_t;
/* i810_drv.c */
@ -71,8 +90,8 @@ extern int i810_unlock(struct inode *inode, struct file *filp,
/* i810_dma.c */
extern int i810_dma_schedule(drm_device_t *dev, int locked);
extern int i810_dma(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int i810_getbuf(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int i810_irq_install(drm_device_t *dev, int irq);
extern int i810_irq_uninstall(drm_device_t *dev);
extern int i810_control(struct inode *inode, struct file *filp,
@ -86,6 +105,7 @@ extern int i810_flush_ioctl(struct inode *inode, struct file *filp,
extern void i810_reclaim_buffers(drm_device_t *dev, pid_t pid);
extern int i810_getage(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg);
extern int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma);
/* i810_bufs.c */
@ -97,8 +117,6 @@ extern int i810_markbufs(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int i810_freebufs(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int i810_mapbufs(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int i810_addmap(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
@ -121,32 +139,17 @@ extern int i810_rmctx(struct inode *inode, struct file *filp,
extern int i810_context_switch(drm_device_t *dev, int old, int new);
extern int i810_context_switch_complete(drm_device_t *dev, int new);
/* Copy the outstanding cliprects for every I810_DMA_VERTEX buffer.
* This can be fixed by emitting directly to the ringbuffer in the
* 'vertex_dma' ioctl.
*/
typedef struct {
u32 *in_use;
int my_use_idx;
} drm_i810_buf_priv_t;
#define I810_DMA_GENERAL 0
#define I810_DMA_VERTEX 1
#define I810_DMA_DISCARD 2 /* not used */
#define I810_VERBOSE 0
int i810_dma_vertex(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
int i810_dma_general(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
int i810_swap_bufs(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
int i810_clear_bufs(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
#define GFX_OP_USER_INTERRUPT ((0<<29)|(2<<23))
#define GFX_OP_BREAKPOINT_INTERRUPT ((0<<29)|(1<<23))
@ -200,5 +203,22 @@ int i810_dma_general(struct inode *inode, struct file *filp,
#define SCI_YMAX_MASK (0xffff<<16)
#define SCI_XMAX_MASK (0xffff<<0)
#define GFX_OP_COLOR_FACTOR ((0x3<<29)|(0x1d<<24)|(0x1<<16)|0x0)
#define GFX_OP_STIPPLE ((0x3<<29)|(0x1d<<24)|(0x83<<16))
#define GFX_OP_MAP_INFO ((0x3<<29)|(0x1d<<24)|0x2)
#define GFX_OP_DESTBUFFER_VARS ((0x3<<29)|(0x1d<<24)|(0x85<<16)|0x0)
#define GFX_OP_DRAWRECT_INFO ((0x3<<29)|(0x1d<<24)|(0x80<<16)|(0x3))
#define GFX_OP_PRIMITIVE ((0x3<<29)|(0x1f<<24))
#define CMD_OP_Z_BUFFER_INFO ((0x0<<29)|(0x16<<23))
#define CMD_OP_DESTBUFFER_INFO ((0x0<<29)|(0x15<<23))
#define BR00_BITBLT_CLIENT 0x40000000
#define BR00_OP_COLOR_BLT 0x10000000
#define BR00_OP_SRC_COPY_BLT 0x10C00000
#define BR13_SOLID_PATTERN 0x80000000
#endif

1
linux-core/mga_drv.c
View File

@ -111,6 +111,7 @@ static drm_ioctl_desc_t mga_ioctls[] = {
[DRM_IOCTL_NR(DRM_IOCTL_MGA_ILOAD)] = { mga_iload, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_MGA_VERTEX)] = { mga_vertex, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_MGA_FLUSH)] = { mga_flush_ioctl, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_MGA_INDICES)] = { mga_indices, 1, 0 },
};
#define MGA_IOCTL_COUNT DRM_ARRAY_SIZE(mga_ioctls)

5
linux/drm.h
View File

@ -341,13 +341,16 @@ typedef struct drm_agp_info {
#define DRM_IOCTL_MGA_ILOAD DRM_IOW( 0x43, drm_mga_iload_t)
#define DRM_IOCTL_MGA_VERTEX DRM_IOW( 0x44, drm_mga_vertex_t)
#define DRM_IOCTL_MGA_FLUSH DRM_IOW( 0x45, drm_lock_t )
#define DRM_IOCTL_MGA_INDICES DRM_IOW( 0x46, drm_mga_indices_t)
/* I810 specific ioctls */
#define DRM_IOCTL_I810_INIT DRM_IOW( 0x40, drm_i810_init_t)
#define DRM_IOCTL_I810_VERTEX DRM_IOW( 0x41, drm_i810_vertex_t)
#define DRM_IOCTL_I810_DMA DRM_IOW( 0x42, drm_i810_general_t)
#define DRM_IOCTL_I810_CLEAR DRM_IOW( 0x42, drm_i810_clear_t)
#define DRM_IOCTL_I810_FLUSH DRM_IO ( 0x43)
#define DRM_IOCTL_I810_GETAGE DRM_IO ( 0x44)
#define DRM_IOCTL_I810_GETBUF DRM_IOW( 0x45, drm_i810_dma_t)
#define DRM_IOCTL_I810_SWAP DRM_IO ( 0x46)
/* Rage 128 specific ioctls */
#define DRM_IOCTL_R128_INIT DRM_IOW( 0x40, drm_r128_init_t)

111
linux/i810_bufs.c
View File

@ -120,6 +120,7 @@ int i810_addbufs_agp(struct inode *inode, struct file *filp, unsigned int cmd,
buf->dev_private = drm_alloc(sizeof(drm_i810_buf_priv_t),
DRM_MEM_BUFS);
buf->dev_priv_size = sizeof(drm_i810_buf_priv_t);
memset(buf->dev_private, 0, sizeof(drm_i810_buf_priv_t));
#if DRM_DMA_HISTOGRAM
buf->time_queued = 0;
@ -332,113 +333,3 @@ int i810_freebufs(struct inode *inode, struct file *filp, unsigned int cmd,
return 0;
}
int i810_mapbufs(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_device_dma_t *dma = dev->dma;
int retcode = 0;
const int zero = 0;
unsigned long virtual;
unsigned long address;
drm_buf_map_t request;
int i;
if (!dma) return -EINVAL;
DRM_DEBUG("\n");
spin_lock(&dev->count_lock);
if (atomic_read(&dev->buf_alloc)) {
spin_unlock(&dev->count_lock);
DRM_DEBUG("Busy\n");
return -EBUSY;
}
++dev->buf_use; /* Can't allocate more after this call */
spin_unlock(&dev->count_lock);
copy_from_user_ret(&request,
(drm_buf_map_t *)arg,
sizeof(request),
-EFAULT);
DRM_DEBUG("dma->flags : %lx\n", dma->flags);
if (request.count >= dma->buf_count) {
if(dma->flags & _DRM_DMA_USE_AGP) {
drm_i810_private_t *dev_priv =
(drm_i810_private_t *)dev->dev_private;
drm_map_t *map = NULL;
map = dev->maplist[dev_priv->buffer_map_idx];
if (!map) {
DRM_DEBUG("map is null\n");
retcode = -EINVAL;
goto done;
}
DRM_DEBUG("map->offset : %lx\n", map->offset);
DRM_DEBUG("map->size : %lx\n", map->size);
DRM_DEBUG("map->type : %d\n", map->type);
DRM_DEBUG("map->flags : %x\n", map->flags);
DRM_DEBUG("map->handle : %lx\n", map->handle);
DRM_DEBUG("map->mtrr : %d\n", map->mtrr);
down(&current->mm->mmap_sem);
virtual = do_mmap(filp, 0, map->size,
PROT_READ|PROT_WRITE,
MAP_SHARED,
(unsigned long)map->offset);
up(&current->mm->mmap_sem);
} else {
down(&current->mm->mmap_sem);
virtual = do_mmap(filp, 0, dma->byte_count,
PROT_READ|PROT_WRITE, MAP_SHARED, 0);
up(&current->mm->mmap_sem);
}
if (virtual > -1024UL) {
/* Real error */
DRM_DEBUG("mmap error\n");
retcode = (signed long)virtual;
goto done;
}
request.virtual = (void *)virtual;
for (i = 0; i < dma->buf_count; i++) {
if (copy_to_user(&request.list[i].idx,
&dma->buflist[i]->idx,
sizeof(request.list[0].idx))) {
retcode = -EFAULT;
goto done;
}
if (copy_to_user(&request.list[i].total,
&dma->buflist[i]->total,
sizeof(request.list[0].total))) {
retcode = -EFAULT;
goto done;
}
if (copy_to_user(&request.list[i].used,
&zero,
sizeof(zero))) {
retcode = -EFAULT;
goto done;
}
address = virtual + dma->buflist[i]->offset;
if (copy_to_user(&request.list[i].address,
&address,
sizeof(address))) {
retcode = -EFAULT;
goto done;
}
}
}
done:
request.count = dma->buf_count;
DRM_DEBUG("%d buffers, retcode = %d\n", request.count, retcode);
copy_to_user_ret((drm_buf_map_t *)arg,
&request,
sizeof(request),
-EFAULT);
DRM_DEBUG("retcode : %d\n", retcode);
return retcode;
}

728
linux/i810_dma.c
View File

@ -37,8 +37,12 @@
#include <linux/interrupt.h> /* For task queue support */
#define I810_BUF_FREE 1
#define I810_BUF_USED 0
#define I810_BUF_FREE 2
#define I810_BUF_CLIENT 1
#define I810_BUF_HARDWARE 0
#define I810_BUF_UNMAPPED 0
#define I810_BUF_MAPPED 1
#define I810_REG(reg) 2
#define I810_BASE(reg) ((unsigned long) \
@ -91,7 +95,7 @@ static inline void i810_print_status_page(drm_device_t *dev)
DRM_DEBUG( "hw_status: Reserved : %x\n", temp[3]);
DRM_DEBUG( "hw_status: Driver Counter : %d\n", temp[5]);
for(i = 6; i < dma->buf_count + 6; i++) {
DRM_DEBUG( "buffer status idx : %d used: %d\n", i - 6, temp[i]);
DRM_DEBUG( "buffer status idx : %d used: %d\n", i - 6, temp[i]);
}
}
@ -108,7 +112,7 @@ static drm_buf_t *i810_freelist_get(drm_device_t *dev)
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
/* In use is already a pointer */
used = cmpxchg(buf_priv->in_use, I810_BUF_FREE,
I810_BUF_USED);
I810_BUF_CLIENT);
if(used == I810_BUF_FREE) {
return buf;
}
@ -126,8 +130,8 @@ static int i810_freelist_put(drm_device_t *dev, drm_buf_t *buf)
int used;
/* In use is already a pointer */
used = cmpxchg(buf_priv->in_use, I810_BUF_USED, I810_BUF_FREE);
if(used != I810_BUF_USED) {
used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_FREE);
if(used != I810_BUF_CLIENT) {
DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx);
return -EINVAL;
}
@ -135,28 +139,116 @@ static int i810_freelist_put(drm_device_t *dev, drm_buf_t *buf)
return 0;
}
static int i810_dma_get_buffers(drm_device_t *dev, drm_dma_t *d)
{
int i;
drm_buf_t *buf;
static struct file_operations i810_buffer_fops = {
open: i810_open,
flush: drm_flush,
release: i810_release,
ioctl: i810_ioctl,
mmap: i810_mmap_buffers,
read: drm_read,
fasync: drm_fasync,
poll: drm_poll,
};
for (i = d->granted_count; i < d->request_count; i++) {
buf = i810_freelist_get(dev);
if (!buf) break;
buf->pid = current->pid;
copy_to_user_ret(&d->request_indices[i],
&buf->idx,
sizeof(buf->idx),
-EFAULT);
copy_to_user_ret(&d->request_sizes[i],
&buf->total,
sizeof(buf->total),
-EFAULT);
++d->granted_count;
}
int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_i810_private_t *dev_priv = dev->dev_private;
drm_buf_t *buf = dev_priv->mmap_buffer;
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
vma->vm_flags |= (VM_IO | VM_DONTCOPY);
vma->vm_file = filp;
buf_priv->currently_mapped = I810_BUF_MAPPED;
if (remap_page_range(vma->vm_start,
VM_OFFSET(vma),
vma->vm_end - vma->vm_start,
vma->vm_page_prot)) return -EAGAIN;
return 0;
}
static int i810_map_buffer(drm_buf_t *buf, struct file *filp)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
drm_i810_private_t *dev_priv = dev->dev_private;
struct file_operations *old_fops;
int retcode = 0;
if(buf_priv->currently_mapped == I810_BUF_MAPPED) return -EINVAL;
down(&current->mm->mmap_sem);
old_fops = filp->f_op;
filp->f_op = &i810_buffer_fops;
dev_priv->mmap_buffer = buf;
buf_priv->virtual = (void *)do_mmap(filp, 0, buf->total,
PROT_READ|PROT_WRITE,
MAP_SHARED,
buf->bus_address);
dev_priv->mmap_buffer = NULL;
filp->f_op = old_fops;
if ((unsigned long)buf_priv->virtual > -1024UL) {
/* Real error */
DRM_DEBUG("mmap error\n");
retcode = (signed int)buf_priv->virtual;
buf_priv->virtual = 0;
}
up(&current->mm->mmap_sem);
return retcode;
}
static int i810_unmap_buffer(drm_buf_t *buf)
{
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
int retcode = 0;
if(buf_priv->currently_mapped != I810_BUF_MAPPED) return -EINVAL;
down(&current->mm->mmap_sem);
retcode = do_munmap((unsigned long)buf_priv->virtual,
(size_t) buf->total);
buf_priv->currently_mapped = I810_BUF_UNMAPPED;
buf_priv->virtual = 0;
up(&current->mm->mmap_sem);
return retcode;
}
static int i810_dma_get_buffer(drm_device_t *dev, drm_i810_dma_t *d,
struct file *filp)
{
drm_file_t *priv = filp->private_data;
drm_buf_t *buf;
drm_i810_buf_priv_t *buf_priv;
int retcode = 0;
buf = i810_freelist_get(dev);
if (!buf) {
retcode = -ENOMEM;
DRM_DEBUG("%s retcode %d\n", __FUNCTION__, retcode);
goto out_get_buf;
}
retcode = i810_map_buffer(buf, filp);
if(retcode) {
i810_freelist_put(dev, buf);
DRM_DEBUG("mapbuf failed in %s retcode %d\n",
__FUNCTION__, retcode);
goto out_get_buf;
}
buf->pid = priv->pid;
buf_priv = buf->dev_private;
d->granted = 1;
d->request_idx = buf->idx;
d->request_size = buf->total;
d->virtual = buf_priv->virtual;
out_get_buf:
return retcode;
}
static unsigned long i810_alloc_page(drm_device_t *dev)
{
unsigned long address;
@ -185,7 +277,10 @@ static void i810_free_page(drm_device_t *dev, unsigned long page)
static int i810_dma_cleanup(drm_device_t *dev)
{
drm_device_dma_t *dma = dev->dma;
if(dev->dev_private) {
int i;
drm_i810_private_t *dev_priv =
(drm_i810_private_t *) dev->dev_private;
@ -201,6 +296,12 @@ static int i810_dma_cleanup(drm_device_t *dev)
drm_free(dev->dev_private, sizeof(drm_i810_private_t),
DRM_MEM_DRIVER);
dev->dev_private = NULL;
for (i = 0; i < dma->buf_count; i++) {
drm_buf_t *buf = dma->buflist[ i ];
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
drm_ioremapfree(buf_priv->kernel_virtual, buf->total);
}
}
return 0;
}
@ -211,6 +312,7 @@ static int i810_wait_ring(drm_device_t *dev, int n)
drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
int iters = 0;
unsigned long end;
unsigned int last_head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
end = jiffies + (HZ*3);
while (ring->space < n) {
@ -218,9 +320,11 @@ static int i810_wait_ring(drm_device_t *dev, int n)
ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
ring->space = ring->head - (ring->tail+8);
if (ring->space < 0) ring->space += ring->Size;
if (ring->space < 0) ring->space += ring->Size;
if (ring->head != last_head)
end = jiffies + (HZ*3);
iters++;
if((signed)(end - jiffies) <= 0) {
DRM_ERROR("space: %d wanted %d\n", ring->space, n);
@ -250,9 +354,9 @@ static int i810_freelist_init(drm_device_t *dev)
{
drm_device_dma_t *dma = dev->dma;
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
u8 *hw_status = (u8 *)dev_priv->hw_status_page;
int i;
int my_idx = 24;
u32 *hw_status = (u32 *)(dev_priv->hw_status_page + my_idx);
int i;
if(dma->buf_count > 1019) {
/* Not enough space in the status page for the freelist */
@ -263,11 +367,14 @@ static int i810_freelist_init(drm_device_t *dev)
drm_buf_t *buf = dma->buflist[ i ];
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
buf_priv->in_use = hw_status + my_idx;
DRM_DEBUG("buf_priv->in_use : %p\n", buf_priv->in_use);
*buf_priv->in_use = I810_BUF_FREE;
buf_priv->in_use = hw_status++;
buf_priv->my_use_idx = my_idx;
my_idx += 4;
*buf_priv->in_use = I810_BUF_FREE;
buf_priv->kernel_virtual = drm_ioremap(buf->bus_address,
buf->total);
}
return 0;
}
@ -301,9 +408,11 @@ static int i810_dma_initialize(drm_device_t *dev,
dev_priv->ring.Start = init->ring_start;
dev_priv->ring.End = init->ring_end;
dev_priv->ring.Size = init->ring_size;
dev_priv->ring.virtual_start = drm_ioremap(dev->agp->base +
init->ring_start,
init->ring_size);
dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
if (dev_priv->ring.virtual_start == NULL) {
@ -312,6 +421,17 @@ static int i810_dma_initialize(drm_device_t *dev,
" ring buffer\n");
return -ENOMEM;
}
dev_priv->w = init->w;
dev_priv->h = init->h;
dev_priv->pitch = init->pitch;
dev_priv->back_offset = init->back_offset;
dev_priv->depth_offset = init->depth_offset;
dev_priv->front_di1 = init->front_offset | init->pitch_bits;
dev_priv->back_di1 = init->back_offset | init->pitch_bits;
dev_priv->zi1 = init->depth_offset | init->pitch_bits;
/* Program Hardware Status Page */
dev_priv->hw_status_page = i810_alloc_page(dev);
@ -366,37 +486,270 @@ int i810_dma_init(struct inode *inode, struct file *filp,
return retcode;
}
static void i810_dma_dispatch_general(drm_device_t *dev, drm_buf_t *buf,
int used )
{
drm_i810_private_t *dev_priv = dev->dev_private;
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
unsigned long address = (unsigned long)buf->bus_address;
unsigned long start = address - dev->agp->base;
RING_LOCALS;
dev_priv->counter++;
DRM_DEBUG( "dispatch counter : %ld\n", dev_priv->counter);
DRM_DEBUG( "i810_dma_dispatch\n");
DRM_DEBUG( "start : 0x%lx\n", start);
DRM_DEBUG( "used : 0x%x\n", used);
DRM_DEBUG( "start + used - 4 : 0x%lx\n", start + used - 4);
i810_kernel_lost_context(dev);
BEGIN_LP_RING(10);
OUT_RING( CMD_OP_BATCH_BUFFER );
OUT_RING( start | BB1_PROTECTED );
OUT_RING( start + used - 4 );
OUT_RING( CMD_STORE_DWORD_IDX );
OUT_RING( 20 );
OUT_RING( dev_priv->counter );
OUT_RING( CMD_STORE_DWORD_IDX );
OUT_RING( buf_priv->my_use_idx );
OUT_RING( I810_BUF_FREE );
OUT_RING( CMD_REPORT_HEAD );
ADVANCE_LP_RING();
/* Most efficient way to verify state for the i810 is as it is
* emitted. Non-conformant state is silently dropped.
*
* Use 'volatile' & local var tmp to force the emitted values to be
* identical to the verified ones.
*/
static void i810EmitContextVerified( drm_device_t *dev,
volatile unsigned int *code )
{
drm_i810_private_t *dev_priv = dev->dev_private;
int i, j = 0;
unsigned int tmp;
RING_LOCALS;
BEGIN_LP_RING( I810_CTX_SETUP_SIZE );
OUT_RING( GFX_OP_COLOR_FACTOR );
OUT_RING( code[I810_CTXREG_CF1] );
OUT_RING( GFX_OP_STIPPLE );
OUT_RING( code[I810_CTXREG_ST1] );
for ( i = 4 ; i < I810_CTX_SETUP_SIZE ; i++ ) {
tmp = code[i];
if ((tmp & (7<<29)) == (3<<29) &&
(tmp & (0x1f<<24)) < (0x1d<<24))
{
OUT_RING( tmp );
j++;
}
}
if (j & 1)
OUT_RING( 0 );
ADVANCE_LP_RING();
}
static void i810EmitTexVerified( drm_device_t *dev,
volatile unsigned int *code )
{
drm_i810_private_t *dev_priv = dev->dev_private;
int i, j = 0;
unsigned int tmp;
RING_LOCALS;
BEGIN_LP_RING( I810_TEX_SETUP_SIZE );
OUT_RING( GFX_OP_MAP_INFO );
OUT_RING( code[I810_TEXREG_MI1] );
OUT_RING( code[I810_TEXREG_MI2] );
OUT_RING( code[I810_TEXREG_MI3] );
for ( i = 4 ; i < I810_TEX_SETUP_SIZE ; i++ ) {
tmp = code[i];
if ((tmp & (7<<29)) == (3<<29) &&
(tmp & (0x1f<<24)) < (0x1d<<24))
{
OUT_RING( tmp );
j++;
}
}
if (j & 1)
OUT_RING( 0 );
ADVANCE_LP_RING();
}
/* Need to do some additional checking when setting the dest buffer.
*/
static void i810EmitDestVerified( drm_device_t *dev,
volatile unsigned int *code )
{
drm_i810_private_t *dev_priv = dev->dev_private;
unsigned int tmp;
RING_LOCALS;
BEGIN_LP_RING( I810_DEST_SETUP_SIZE + 2 );
tmp = code[I810_DESTREG_DI1];
if (tmp == dev_priv->front_di1 || tmp == dev_priv->back_di1) {
OUT_RING( CMD_OP_DESTBUFFER_INFO );
OUT_RING( tmp );
} else
DRM_DEBUG("bad di1 %x (allow %x or %x)\n",
tmp, dev_priv->front_di1, dev_priv->back_di1);
/* invarient:
*/
OUT_RING( CMD_OP_Z_BUFFER_INFO );
OUT_RING( dev_priv->zi1 );
OUT_RING( GFX_OP_DESTBUFFER_VARS );
OUT_RING( code[I810_DESTREG_DV1] );
OUT_RING( GFX_OP_DRAWRECT_INFO );
OUT_RING( code[I810_DESTREG_DR1] );
OUT_RING( code[I810_DESTREG_DR2] );
OUT_RING( code[I810_DESTREG_DR3] );
OUT_RING( code[I810_DESTREG_DR4] );
OUT_RING( 0 );
ADVANCE_LP_RING();
}
static void i810EmitState( drm_device_t *dev )
{
drm_i810_private_t *dev_priv = dev->dev_private;
drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
unsigned int dirty = sarea_priv->dirty;
if (dirty & I810_UPLOAD_BUFFERS) {
i810EmitDestVerified( dev, sarea_priv->BufferState );
sarea_priv->dirty &= ~I810_UPLOAD_BUFFERS;
}
if (dirty & I810_UPLOAD_CTX) {
i810EmitContextVerified( dev, sarea_priv->ContextState );
sarea_priv->dirty &= ~I810_UPLOAD_CTX;
}
if (dirty & I810_UPLOAD_TEX0) {
i810EmitTexVerified( dev, sarea_priv->TexState[0] );
sarea_priv->dirty &= ~I810_UPLOAD_TEX0;
}
if (dirty & I810_UPLOAD_TEX1) {
i810EmitTexVerified( dev, sarea_priv->TexState[1] );
sarea_priv->dirty &= ~I810_UPLOAD_TEX1;
}
}
/* need to verify
*/
static void i810_dma_dispatch_clear( drm_device_t *dev, int flags,
unsigned int clear_color,
unsigned int clear_zval )
{
drm_i810_private_t *dev_priv = dev->dev_private;
drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
int nbox = sarea_priv->nbox;
drm_clip_rect_t *pbox = sarea_priv->boxes;
int pitch = dev_priv->pitch;
int cpp = 2;
int i;
RING_LOCALS;
i810_kernel_lost_context(dev);
if (nbox > I810_NR_SAREA_CLIPRECTS)
nbox = I810_NR_SAREA_CLIPRECTS;
for (i = 0 ; i < nbox ; i++, pbox++) {
unsigned int x = pbox->x1;
unsigned int y = pbox->y1;
unsigned int width = (pbox->x2 - x) * cpp;
unsigned int height = pbox->y2 - y;
unsigned int start = y * pitch + x * cpp;
if (pbox->x1 > pbox->x2 ||
pbox->y1 > pbox->y2 ||
pbox->x2 > dev_priv->w ||
pbox->y2 > dev_priv->h)
continue;
if ( flags & I810_FRONT ) {
DRM_DEBUG("clear front\n");
BEGIN_LP_RING( 6 );
OUT_RING( BR00_BITBLT_CLIENT |
BR00_OP_COLOR_BLT | 0x3 );
OUT_RING( BR13_SOLID_PATTERN | (0xF0 << 16) | pitch );
OUT_RING( (height << 16) | width );
OUT_RING( start );
OUT_RING( clear_color );
OUT_RING( 0 );
ADVANCE_LP_RING();
}
if ( flags & I810_BACK ) {
DRM_DEBUG("clear back\n");
BEGIN_LP_RING( 6 );
OUT_RING( BR00_BITBLT_CLIENT |
BR00_OP_COLOR_BLT | 0x3 );
OUT_RING( BR13_SOLID_PATTERN | (0xF0 << 16) | pitch );
OUT_RING( (height << 16) | width );
OUT_RING( dev_priv->back_offset + start );
OUT_RING( clear_color );
OUT_RING( 0 );
ADVANCE_LP_RING();
}
if ( flags & I810_DEPTH ) {
DRM_DEBUG("clear depth\n");
BEGIN_LP_RING( 6 );
OUT_RING( BR00_BITBLT_CLIENT |
BR00_OP_COLOR_BLT | 0x3 );
OUT_RING( BR13_SOLID_PATTERN | (0xF0 << 16) | pitch );
OUT_RING( (height << 16) | width );
OUT_RING( dev_priv->depth_offset + start );
OUT_RING( clear_zval );
OUT_RING( 0 );
ADVANCE_LP_RING();
}
}
}
static void i810_dma_dispatch_swap( drm_device_t *dev )
{
drm_i810_private_t *dev_priv = dev->dev_private;
drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
int nbox = sarea_priv->nbox;
drm_clip_rect_t *pbox = sarea_priv->boxes;
int pitch = dev_priv->pitch;
int cpp = 2;
int ofs = dev_priv->back_offset;
int i;
RING_LOCALS;
DRM_DEBUG("swapbuffers\n");
i810_kernel_lost_context(dev);
if (nbox > I810_NR_SAREA_CLIPRECTS)
nbox = I810_NR_SAREA_CLIPRECTS;
for (i = 0 ; i < nbox; i++, pbox++)
{
unsigned int w = pbox->x2 - pbox->x1;
unsigned int h = pbox->y2 - pbox->y1;
unsigned int dst = pbox->x1*cpp + pbox->y1*pitch;
unsigned int start = ofs + dst;
if (pbox->x1 > pbox->x2 ||
pbox->y1 > pbox->y2 ||
pbox->x2 > dev_priv->w ||
pbox->y2 > dev_priv->h)
continue;
DRM_DEBUG("dispatch swap %d,%d-%d,%d!\n",
pbox[i].x1, pbox[i].y1,
pbox[i].x2, pbox[i].y2);
BEGIN_LP_RING( 6 );
OUT_RING( BR00_BITBLT_CLIENT | BR00_OP_SRC_COPY_BLT | 0x4 );
OUT_RING( pitch | (0xCC << 16));
OUT_RING( (h << 16) | (w * cpp));
OUT_RING( dst );
OUT_RING( pitch );
OUT_RING( start );
ADVANCE_LP_RING();
}
}
static void i810_dma_dispatch_vertex(drm_device_t *dev,
drm_buf_t *buf,
int discard,
@ -409,14 +762,29 @@ static void i810_dma_dispatch_vertex(drm_device_t *dev,
int nbox = sarea_priv->nbox;
unsigned long address = (unsigned long)buf->bus_address;
unsigned long start = address - dev->agp->base;
int i = 0;
int i = 0, u;
RING_LOCALS;
i810_kernel_lost_context(dev);
if (nbox > I810_NR_SAREA_CLIPRECTS)
nbox = I810_NR_SAREA_CLIPRECTS;
DRM_DEBUG("dispatch vertex addr 0x%lx, used 0x%x nbox %d\n",
if (discard) {
u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
I810_BUF_HARDWARE);
if(u != I810_BUF_CLIENT) {
DRM_DEBUG("xxxx 2\n");
}
}
if (used > 4*1024)
used = 0;
if (sarea_priv->dirty)
i810EmitState( dev );
DRM_DEBUG("dispatch vertex addr 0x%lx, used 0x%x nbox %d\n",
address, used, nbox);
dev_priv->counter++;
@ -425,8 +793,20 @@ static void i810_dma_dispatch_vertex(drm_device_t *dev,
DRM_DEBUG( "start : %lx\n", start);
DRM_DEBUG( "used : %d\n", used);
DRM_DEBUG( "start + used - 4 : %ld\n", start + used - 4);
i810_kernel_lost_context(dev);
if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
*(u32 *)buf_priv->virtual = (GFX_OP_PRIMITIVE |
sarea_priv->vertex_prim |
((used/4)-2));
if (used & 4) {
*(u32 *)((u32)buf_priv->virtual + used) = 0;
used += 4;
}
i810_unmap_buffer(buf);
}
if (used) {
do {
if (i < nbox) {
@ -434,7 +814,7 @@ static void i810_dma_dispatch_vertex(drm_device_t *dev,
OUT_RING( GFX_OP_SCISSOR | SC_UPDATE_SCISSOR |
SC_ENABLE );
OUT_RING( GFX_OP_SCISSOR_INFO );
OUT_RING( box[i].x1 | (box[i].y1 << 16) );
OUT_RING( box[i].x1 | (box[i].y1<<16) );
OUT_RING( (box[i].x2-1) | ((box[i].y2-1)<<16) );
ADVANCE_LP_RING();
}
@ -479,7 +859,9 @@ static void i810_dma_service(int irq, void *device, struct pt_regs *regs)
temp = temp & ~(0x6000);
if(temp != 0) I810_WRITE16(I810REG_INT_IDENTITY_R,
temp); /* Clear all interrupts */
else
return;
queue_task(&dev->tq, &tq_immediate);
mark_bh(IMMEDIATE_BH);
}
@ -539,7 +921,7 @@ int i810_irq_install(drm_device_t *dev, int irq)
/* Install handler */
if ((retcode = request_irq(dev->irq,
i810_dma_service,
0,
SA_SHIRQ,
dev->devname,
dev))) {
down(&dev->struct_sem);
@ -560,6 +942,9 @@ int i810_irq_uninstall(drm_device_t *dev)
int irq;
u16 temp;
/* return 0; */
down(&dev->struct_sem);
irq = dev->irq;
dev->irq = 0;
@ -618,10 +1003,15 @@ static inline void i810_dma_emit_flush(drm_device_t *dev)
RING_LOCALS;
i810_kernel_lost_context(dev);
BEGIN_LP_RING(2);
OUT_RING( CMD_REPORT_HEAD );
OUT_RING( GFX_OP_USER_INTERRUPT );
OUT_RING( GFX_OP_USER_INTERRUPT );
ADVANCE_LP_RING();
/* i810_wait_ring( dev, dev_priv->ring.Size - 8 ); */
/* atomic_set(&dev_priv->flush_done, 1); */
/* wake_up_interruptible(&dev_priv->flush_queue); */
}
static inline void i810_dma_quiescent_emit(drm_device_t *dev)
@ -630,13 +1020,17 @@ static inline void i810_dma_quiescent_emit(drm_device_t *dev)
RING_LOCALS;
i810_kernel_lost_context(dev);
BEGIN_LP_RING(4);
BEGIN_LP_RING(4);
OUT_RING( INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE );
OUT_RING( CMD_REPORT_HEAD );
OUT_RING( GFX_OP_USER_INTERRUPT );
OUT_RING( 0 );
OUT_RING( 0 );
OUT_RING( GFX_OP_USER_INTERRUPT );
ADVANCE_LP_RING();
/* i810_wait_ring( dev, dev_priv->ring.Size - 8 ); */
/* atomic_set(&dev_priv->flush_done, 1); */
/* wake_up_interruptible(&dev_priv->flush_queue); */
}
static void i810_dma_quiescent(drm_device_t *dev)
@ -676,8 +1070,9 @@ static int i810_flush_queue(drm_device_t *dev)
{
DECLARE_WAITQUEUE(entry, current);
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
drm_device_dma_t *dma = dev->dma;
unsigned long end;
int ret = 0;
int i, ret = 0;
if(dev_priv == NULL) {
return 0;
@ -702,7 +1097,21 @@ static int i810_flush_queue(drm_device_t *dev)
current->state = TASK_RUNNING;
remove_wait_queue(&dev_priv->flush_queue, &entry);
for (i = 0; i < dma->buf_count; i++) {
drm_buf_t *buf = dma->buflist[ i ];
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
int used = cmpxchg(buf_priv->in_use, I810_BUF_HARDWARE,
I810_BUF_FREE);
if (used == I810_BUF_HARDWARE)
DRM_DEBUG("reclaimed from HARDWARE\n");
if (used == I810_BUF_CLIENT)
DRM_DEBUG("still on client HARDWARE\n");
}
return ret;
}
@ -713,20 +1122,23 @@ void i810_reclaim_buffers(drm_device_t *dev, pid_t pid)
int i;
if (!dma) return;
if(dev->dev_private == NULL) return;
if(dma->buflist == NULL) return;
if (!dev->dev_private) return;
if (!dma->buflist) return;
i810_flush_queue(dev);
for (i = 0; i < dma->buf_count; i++) {
drm_buf_t *buf = dma->buflist[ i ];
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
/* Only buffers that need to get reclaimed ever
* get set to free
*/
if (buf->pid == pid && buf_priv) {
cmpxchg(buf_priv->in_use,
I810_BUF_USED, I810_BUF_FREE);
int used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
I810_BUF_FREE);
if (used == I810_BUF_CLIENT)
DRM_DEBUG("reclaimed from client\n");
if(buf_priv->currently_mapped == I810_BUF_MAPPED)
buf_priv->currently_mapped = I810_BUF_UNMAPPED;
}
}
}
@ -760,19 +1172,6 @@ int i810_lock(struct inode *inode, struct file *filp, unsigned int cmd,
*/
if (!ret) {
#if 0
if (_DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)
!= lock.context) {
long j = jiffies - dev->lock.lock_time;
if (j > 0 && j <= DRM_LOCK_SLICE) {
/* Can't take lock if we just had it and
there is contention. */
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(j);
}
}
#endif
add_wait_queue(&dev->lock.lock_queue, &entry);
for (;;) {
if (!dev->lock.hw_lock) {
@ -829,76 +1228,22 @@ int i810_flush_ioctl(struct inode *inode, struct file *filp,
return 0;
}
static int i810DmaGeneral(drm_device_t *dev, drm_i810_general_t *args)
{
drm_device_dma_t *dma = dev->dma;
drm_buf_t *buf = dma->buflist[ args->idx ];
if (!args->used) {
i810_freelist_put(dev, buf);
} else {
i810_dma_dispatch_general( dev, buf, args->used );
atomic_add(args->used, &dma->total_bytes);
atomic_inc(&dma->total_dmas);
}
return 0;
}
static int i810DmaVertex(drm_device_t *dev, drm_i810_vertex_t *args)
{
drm_device_dma_t *dma = dev->dma;
drm_buf_t *buf = dma->buflist[ args->idx ];
i810_dma_dispatch_vertex( dev, buf, args->discard, args->used );
atomic_add(args->used, &dma->total_bytes);
atomic_inc(&dma->total_dmas);
return 0;
}
int i810_dma_general(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_i810_general_t general;
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
u32 *hw_status = (u32 *)dev_priv->hw_status_page;
drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
dev_priv->sarea_priv;
int retcode = 0;
copy_from_user_ret(&general, (drm_i810_general_t *)arg, sizeof(general),
-EFAULT);
DRM_DEBUG("i810 dma general idx %d used %d\n",
general.idx, general.used);
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i810_dma_general called without lock held\n");
return -EINVAL;
}
retcode = i810DmaGeneral(dev, &general);
sarea_priv->last_enqueue = dev_priv->counter-1;
sarea_priv->last_dispatch = (int) hw_status[5];
return retcode;
}
int i810_dma_vertex(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_device_dma_t *dma = dev->dma;
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
u32 *hw_status = (u32 *)dev_priv->hw_status_page;
drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
dev_priv->sarea_priv;
drm_i810_vertex_t vertex;
int retcode = 0;
copy_from_user_ret(&vertex, (drm_i810_vertex_t *)arg, sizeof(vertex),
-EFAULT);
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i810_dma_vertex called without lock held\n");
return -EINVAL;
@ -907,12 +1252,56 @@ int i810_dma_vertex(struct inode *inode, struct file *filp,
DRM_DEBUG("i810 dma vertex, idx %d used %d discard %d\n",
vertex.idx, vertex.used, vertex.discard);
retcode = i810DmaVertex(dev, &vertex);
i810_dma_dispatch_vertex( dev,
dma->buflist[ vertex.idx ],
vertex.discard, vertex.used );
atomic_add(vertex.used, &dma->total_bytes);
atomic_inc(&dma->total_dmas);
sarea_priv->last_enqueue = dev_priv->counter-1;
sarea_priv->last_dispatch = (int) hw_status[5];
return retcode;
return 0;
}
int i810_clear_bufs(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_i810_clear_t clear;
copy_from_user_ret(&clear, (drm_i810_clear_t *)arg, sizeof(clear),
-EFAULT);
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i810_clear_bufs called without lock held\n");
return -EINVAL;
}
i810_dma_dispatch_clear( dev, clear.flags,
clear.clear_color,
clear.clear_depth );
return 0;
}
int i810_swap_bufs(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
DRM_DEBUG("i810_swap_bufs\n");
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i810_swap_buf called without lock held\n");
return -EINVAL;
}
i810_dma_dispatch_swap( dev );
return 0;
}
int i810_getage(struct inode *inode, struct file *filp, unsigned int cmd,
@ -929,53 +1318,32 @@ int i810_getage(struct inode *inode, struct file *filp, unsigned int cmd,
return 0;
}
int i810_dma(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
int i810_getbuf(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_device_dma_t *dma = dev->dma;
int retcode = 0;
drm_dma_t d;
drm_i810_dma_t d;
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
u32 *hw_status = (u32 *)dev_priv->hw_status_page;
drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
dev_priv->sarea_priv;
copy_from_user_ret(&d, (drm_dma_t *)arg, sizeof(d), -EFAULT);
DRM_DEBUG("%d %d: %d send, %d req\n",
current->pid, d.context, d.send_count, d.request_count);
DRM_DEBUG("getbuf\n");
copy_from_user_ret(&d, (drm_i810_dma_t *)arg, sizeof(d), -EFAULT);
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i810_dma called without lock held\n");
return -EINVAL;
}
/* Please don't send us buffers.
*/
if (d.send_count != 0) {
DRM_ERROR("Process %d trying to send %d buffers via drmDMA\n",
current->pid, d.send_count);
return -EINVAL;
}
/* We'll send you buffers.
*/
if (d.request_count < 0 || d.request_count > dma->buf_count) {
DRM_ERROR("Process %d trying to get %d buffers (of %d max)\n",
current->pid, d.request_count, dma->buf_count);
return -EINVAL;
}
d.granted_count = 0;
d.granted = 0;
if (!retcode && d.request_count) {
retcode = i810_dma_get_buffers(dev, &d);
}
retcode = i810_dma_get_buffer(dev, &d, filp);
DRM_DEBUG("i810_dma: %d returning, granted = %d\n",
current->pid, d.granted_count);
DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
current->pid, retcode, d.granted);
copy_to_user_ret((drm_dma_t *)arg, &d, sizeof(d), -EFAULT);
sarea_priv->last_dispatch = (int) hw_status[5];

129
linux/i810_drm.h
View File

@ -5,35 +5,112 @@
* if you change them, you must change the defines in the Xserver.
*/
/* Might one day want to support the client-side ringbuffer code again.
*/
#ifndef _I810_DEFINES_
#define _I810_DEFINES_
#define I810_USE_BATCH 1
#define I810_DMA_BUF_ORDER 12
#define I810_DMA_BUF_SZ (1<<I810_DMA_BUF_ORDER)
#define I810_DMA_BUF_NR 256
#define I810_NR_SAREA_CLIPRECTS 2
#define I810_NR_SAREA_CLIPRECTS 8
/* Each region is a minimum of 64k, and there are at most 64 of them.
*/
#define I810_NR_TEX_REGIONS 64
#define I810_LOG_MIN_TEX_REGION_SIZE 16
#endif
#define I810_UPLOAD_TEX0IMAGE 0x1 /* handled clientside */
#define I810_UPLOAD_TEX1IMAGE 0x2 /* handled clientside */
#define I810_UPLOAD_CTX 0x4
#define I810_UPLOAD_BUFFERS 0x8
#define I810_UPLOAD_TEX0 0x10
#define I810_UPLOAD_TEX1 0x20
#define I810_UPLOAD_CLIPRECTS 0x40
/* Indices into buf.Setup where various bits of state are mirrored per
* context and per buffer. These can be fired at the card as a unit,
* or in a piecewise fashion as required.
*/
/* Destbuffer state
* - backbuffer linear offset and pitch -- invarient in the current dri
* - zbuffer linear offset and pitch -- also invarient
* - drawing origin in back and depth buffers.
*
* Keep the depth/back buffer state here to acommodate private buffers
* in the future.
*/
#define I810_DESTREG_DI0 0 /* CMD_OP_DESTBUFFER_INFO (2 dwords) */
#define I810_DESTREG_DI1 1
#define I810_DESTREG_DV0 2 /* GFX_OP_DESTBUFFER_VARS (2 dwords) */
#define I810_DESTREG_DV1 3
#define I810_DESTREG_DR0 4 /* GFX_OP_DRAWRECT_INFO (4 dwords) */
#define I810_DESTREG_DR1 5
#define I810_DESTREG_DR2 6
#define I810_DESTREG_DR3 7
#define I810_DESTREG_DR4 8
#define I810_DEST_SETUP_SIZE 10
/* Context state
*/
#define I810_CTXREG_CF0 0 /* GFX_OP_COLOR_FACTOR */
#define I810_CTXREG_CF1 1
#define I810_CTXREG_ST0 2 /* GFX_OP_STIPPLE */
#define I810_CTXREG_ST1 3
#define I810_CTXREG_VF 4 /* GFX_OP_VERTEX_FMT */
#define I810_CTXREG_MT 5 /* GFX_OP_MAP_TEXELS */
#define I810_CTXREG_MC0 6 /* GFX_OP_MAP_COLOR_STAGES - stage 0 */
#define I810_CTXREG_MC1 7 /* GFX_OP_MAP_COLOR_STAGES - stage 1 */
#define I810_CTXREG_MC2 8 /* GFX_OP_MAP_COLOR_STAGES - stage 2 */
#define I810_CTXREG_MA0 9 /* GFX_OP_MAP_ALPHA_STAGES - stage 0 */
#define I810_CTXREG_MA1 10 /* GFX_OP_MAP_ALPHA_STAGES - stage 1 */
#define I810_CTXREG_MA2 11 /* GFX_OP_MAP_ALPHA_STAGES - stage 2 */
#define I810_CTXREG_SDM 12 /* GFX_OP_SRC_DEST_MONO */
#define I810_CTXREG_FOG 13 /* GFX_OP_FOG_COLOR */
#define I810_CTXREG_B1 14 /* GFX_OP_BOOL_1 */
#define I810_CTXREG_B2 15 /* GFX_OP_BOOL_2 */
#define I810_CTXREG_LCS 16 /* GFX_OP_LINEWIDTH_CULL_SHADE_MODE */
#define I810_CTXREG_PV 17 /* GFX_OP_PV_RULE -- Invarient! */
#define I810_CTXREG_ZA 18 /* GFX_OP_ZBIAS_ALPHAFUNC */
#define I810_CTXREG_AA 19 /* GFX_OP_ANTIALIAS */
#define I810_CTX_SETUP_SIZE 20
/* Texture state (per tex unit)
*/
#define I810_TEXREG_MI0 0 /* GFX_OP_MAP_INFO (4 dwords) */
#define I810_TEXREG_MI1 1
#define I810_TEXREG_MI2 2
#define I810_TEXREG_MI3 3
#define I810_TEXREG_MF 4 /* GFX_OP_MAP_FILTER */
#define I810_TEXREG_MLC 5 /* GFX_OP_MAP_LOD_CTL */
#define I810_TEXREG_MLL 6 /* GFX_OP_MAP_LOD_LIMITS */
#define I810_TEXREG_MCS 7 /* GFX_OP_MAP_COORD_SETS ??? */
#define I810_TEX_SETUP_SIZE 8
#define I810_FRONT 0x1
#define I810_BACK 0x2
#define I810_DEPTH 0x4
typedef struct _drm_i810_init {
enum {
I810_INIT_DMA = 0x01,
I810_CLEANUP_DMA = 0x02
enum {
I810_INIT_DMA = 0x01,
I810_CLEANUP_DMA = 0x02
} func;
int ring_map_idx;
int buffer_map_idx;
int ring_map_idx;
int buffer_map_idx;
int sarea_priv_offset;
unsigned long ring_start;
unsigned long ring_end;
unsigned long ring_size;
unsigned int ring_start;
unsigned int ring_end;
unsigned int ring_size;
unsigned int front_offset;
unsigned int back_offset;
unsigned int depth_offset;
unsigned int w;
unsigned int h;
unsigned int pitch;
unsigned int pitch_bits;
} drm_i810_init_t;
/* Warning: If you change the SAREA structure you must change the Xserver
@ -46,6 +123,11 @@ typedef struct _drm_i810_tex_region {
} drm_i810_tex_region_t;
typedef struct _drm_i810_sarea {
unsigned int ContextState[I810_CTX_SETUP_SIZE];
unsigned int BufferState[I810_DEST_SETUP_SIZE];
unsigned int TexState[2][I810_TEX_SETUP_SIZE];
unsigned int dirty;
unsigned int nbox;
drm_clip_rect_t boxes[I810_NR_SAREA_CLIPRECTS];
@ -72,12 +154,18 @@ typedef struct _drm_i810_sarea {
int last_dispatch; /* age of the most recently dispatched buffer */
int last_quiescent; /* */
int ctxOwner; /* last context to upload state */
int vertex_prim;
} drm_i810_sarea_t;
typedef struct _drm_i810_general {
int idx;
int used;
} drm_i810_general_t;
typedef struct _drm_i810_clear {
int clear_color;
int clear_depth;
int flags;
} drm_i810_clear_t;
/* These may be placeholders if we have more cliprects than
* I810_NR_SAREA_CLIPRECTS. In that case, the client sets discard to
@ -90,4 +178,11 @@ typedef struct _drm_i810_vertex {
int discard; /* client is finished with the buffer? */
} drm_i810_vertex_t;
typedef struct drm_i810_dma {
void *virtual;
int request_idx;
int request_size;
int granted;
} drm_i810_dma_t;
#endif /* _I810_DRM_H_ */

8
linux/i810_drv.c
View File

@ -80,7 +80,6 @@ static drm_ioctl_desc_t i810_ioctls[] = {
[DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS)] = { i810_addbufs, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS)] = { i810_markbufs, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS)] = { i810_infobufs, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS)] = { i810_mapbufs, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS)] = { i810_freebufs, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)] = { i810_addctx, 1, 1 },
@ -93,8 +92,6 @@ static drm_ioctl_desc_t i810_ioctls[] = {
[DRM_IOCTL_NR(DRM_IOCTL_ADD_DRAW)] = { drm_adddraw, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_RM_DRAW)] = { drm_rmdraw, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_DMA)] = { i810_dma, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_LOCK)] = { i810_lock, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)] = { i810_unlock, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_FINISH)] = { drm_finish, 1, 0 },
@ -107,11 +104,14 @@ static drm_ioctl_desc_t i810_ioctls[] = {
[DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE)] = { drm_agp_free, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND)] = { drm_agp_bind, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND)] = { drm_agp_unbind, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_I810_INIT)] = { i810_dma_init, 1, 1 },
[DRM_IOCTL_NR(DRM_IOCTL_I810_VERTEX)] = { i810_dma_vertex, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_I810_DMA)] = { i810_dma_general,1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_I810_CLEAR)] = { i810_clear_bufs, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_I810_FLUSH)] = { i810_flush_ioctl,1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_I810_GETAGE)] = { i810_getage, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_I810_GETBUF)] = { i810_getbuf, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_I810_SWAP)] = { i810_swap_bufs, 1, 0 },
};
#define I810_IOCTL_COUNT DRM_ARRAY_SIZE(i810_ioctls)

66
linux/i810_drv.h
View File

@ -32,6 +32,16 @@
#ifndef _I810_DRV_H_
#define _I810_DRV_H_
typedef struct drm_i810_buf_priv {
u32 *in_use;
int my_use_idx;
int currently_mapped;
void *virtual;
void *kernel_virtual;
int map_count;
struct vm_area_struct *vma;
} drm_i810_buf_priv_t;
typedef struct _drm_i810_ring_buffer{
int tail_mask;
unsigned long Start;
@ -55,6 +65,15 @@ typedef struct drm_i810_private {
atomic_t flush_done;
wait_queue_head_t flush_queue; /* Processes waiting until flush */
drm_buf_t *mmap_buffer;
u32 front_di1, back_di1, zi1;
int back_offset;
int depth_offset;
int w, h;
int pitch;
} drm_i810_private_t;
/* i810_drv.c */
@ -71,8 +90,8 @@ extern int i810_unlock(struct inode *inode, struct file *filp,
/* i810_dma.c */
extern int i810_dma_schedule(drm_device_t *dev, int locked);
extern int i810_dma(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int i810_getbuf(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int i810_irq_install(drm_device_t *dev, int irq);
extern int i810_irq_uninstall(drm_device_t *dev);
extern int i810_control(struct inode *inode, struct file *filp,
@ -86,6 +105,7 @@ extern int i810_flush_ioctl(struct inode *inode, struct file *filp,
extern void i810_reclaim_buffers(drm_device_t *dev, pid_t pid);
extern int i810_getage(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg);
extern int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma);
/* i810_bufs.c */
@ -97,8 +117,6 @@ extern int i810_markbufs(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int i810_freebufs(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int i810_mapbufs(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int i810_addmap(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
@ -121,32 +139,17 @@ extern int i810_rmctx(struct inode *inode, struct file *filp,
extern int i810_context_switch(drm_device_t *dev, int old, int new);
extern int i810_context_switch_complete(drm_device_t *dev, int new);
/* Copy the outstanding cliprects for every I810_DMA_VERTEX buffer.
* This can be fixed by emitting directly to the ringbuffer in the
* 'vertex_dma' ioctl.
*/
typedef struct {
u32 *in_use;
int my_use_idx;
} drm_i810_buf_priv_t;
#define I810_DMA_GENERAL 0
#define I810_DMA_VERTEX 1
#define I810_DMA_DISCARD 2 /* not used */
#define I810_VERBOSE 0
int i810_dma_vertex(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
int i810_dma_general(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
int i810_swap_bufs(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
int i810_clear_bufs(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
#define GFX_OP_USER_INTERRUPT ((0<<29)|(2<<23))
#define GFX_OP_BREAKPOINT_INTERRUPT ((0<<29)|(1<<23))
@ -200,5 +203,22 @@ int i810_dma_general(struct inode *inode, struct file *filp,
#define SCI_YMAX_MASK (0xffff<<16)
#define SCI_XMAX_MASK (0xffff<<0)
#define GFX_OP_COLOR_FACTOR ((0x3<<29)|(0x1d<<24)|(0x1<<16)|0x0)
#define GFX_OP_STIPPLE ((0x3<<29)|(0x1d<<24)|(0x83<<16))
#define GFX_OP_MAP_INFO ((0x3<<29)|(0x1d<<24)|0x2)
#define GFX_OP_DESTBUFFER_VARS ((0x3<<29)|(0x1d<<24)|(0x85<<16)|0x0)
#define GFX_OP_DRAWRECT_INFO ((0x3<<29)|(0x1d<<24)|(0x80<<16)|(0x3))
#define GFX_OP_PRIMITIVE ((0x3<<29)|(0x1f<<24))
#define CMD_OP_Z_BUFFER_INFO ((0x0<<29)|(0x16<<23))
#define CMD_OP_DESTBUFFER_INFO ((0x0<<29)|(0x15<<23))
#define BR00_BITBLT_CLIENT 0x40000000
#define BR00_OP_COLOR_BLT 0x10000000
#define BR00_OP_SRC_COPY_BLT 0x10C00000
#define BR13_SOLID_PATTERN 0x80000000
#endif

411
linux/mga_dma.c
View File

@ -53,6 +53,7 @@ static unsigned long mga_alloc_page(drm_device_t *dev)
{
unsigned long address;
DRM_DEBUG("%s\n", __FUNCTION__);
address = __get_free_page(GFP_KERNEL);
if(address == 0UL) {
return 0;
@ -65,6 +66,8 @@ static unsigned long mga_alloc_page(drm_device_t *dev)
static void mga_free_page(drm_device_t *dev, unsigned long page)
{
DRM_DEBUG("%s\n", __FUNCTION__);
if(page == 0UL) {
return;
}
@ -80,9 +83,11 @@ static void mga_delay(void)
return;
}
static void mga_flush_write_combine(void)
void mga_flush_write_combine(void)
{
int xchangeDummy;
DRM_DEBUG("%s\n", __FUNCTION__);
__asm__ volatile(" push %%eax ; xchg %%eax, %0 ; pop %%eax" : : "m" (xchangeDummy));
__asm__ volatile(" push %%eax ; push %%ebx ; push %%ecx ; push %%edx ;"
" movl $0,%%eax ; cpuid ; pop %%edx ; pop %%ecx ; pop %%ebx ;"
@ -94,18 +99,6 @@ static void mga_flush_write_combine(void)
#define MGA_BUF_USED 0xffffffff
#define MGA_BUF_FREE 0
static void mga_freelist_debug(drm_mga_freelist_t *item)
{
if(item->buf != NULL) {
DRM_DEBUG("buf index : %d\n", item->buf->idx);
} else {
DRM_DEBUG("Freelist head\n");
}
DRM_DEBUG("item->age : %x\n", item->age);
DRM_DEBUG("item->next : %p\n", item->next);
DRM_DEBUG("item->prev : %p\n", item->prev);
}
static int mga_freelist_init(drm_device_t *dev)
{
drm_device_dma_t *dma = dev->dma;
@ -114,7 +107,9 @@ static int mga_freelist_init(drm_device_t *dev)
drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
drm_mga_freelist_t *item;
int i;
DRM_DEBUG("%s\n", __FUNCTION__);
dev_priv->head = drm_alloc(sizeof(drm_mga_freelist_t), DRM_MEM_DRIVER);
if(dev_priv->head == NULL) return -ENOMEM;
memset(dev_priv->head, 0, sizeof(drm_mga_freelist_t));
@ -136,19 +131,10 @@ static int mga_freelist_init(drm_device_t *dev)
item->buf = buf;
buf_priv->my_freelist = item;
buf_priv->discard = 0;
buf_priv->dispatched = 0;
dev_priv->head->next = item;
}
item = dev_priv->head;
while(item) {
mga_freelist_debug(item);
item = item->next;
}
DRM_DEBUG("Head\n");
mga_freelist_debug(dev_priv->head);
DRM_DEBUG("Tail\n");
mga_freelist_debug(dev_priv->tail);
return 0;
}
@ -158,6 +144,8 @@ static void mga_freelist_cleanup(drm_device_t *dev)
drm_mga_freelist_t *item;
drm_mga_freelist_t *prev;
DRM_DEBUG("%s\n", __FUNCTION__);
item = dev_priv->head;
while(item) {
prev = item;
@ -174,14 +162,14 @@ static inline void mga_dma_quiescent(drm_device_t *dev)
drm_device_dma_t *dma = dev->dma;
drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
__volatile__ unsigned int *status =
(__volatile__ unsigned int *)dev_priv->status_page;
unsigned long end;
int i;
DRM_DEBUG("%s\n", __FUNCTION__);
end = jiffies + (HZ*3);
while(1) {
if(!test_and_set_bit(0, &dev_priv->dispatch_lock)) {
if(!test_and_set_bit(MGA_IN_DISPATCH,
&dev_priv->dispatch_status)) {
break;
}
if((signed)(end - jiffies) <= 0) {
@ -205,51 +193,25 @@ static inline void mga_dma_quiescent(drm_device_t *dev)
}
for (i = 0 ; i < 2000 ; i++) mga_delay();
}
DRM_DEBUG("status[1] : %x last_sync_tag : %x\n", status[1],
dev_priv->last_sync_tag);
sarea_priv->dirty |= MGA_DMA_FLUSH;
out_status:
clear_bit(0, &dev_priv->dispatch_lock);
clear_bit(MGA_IN_DISPATCH, &dev_priv->dispatch_status);
out_nolock:
}
#define FREELIST_INITIAL (MGA_DMA_BUF_NR * 2)
#define FREELIST_COMPARE(age) ((age >> 2))
unsigned int mga_create_sync_tag(drm_device_t *dev)
static void mga_reset_freelist(drm_device_t *dev)
{
drm_mga_private_t *dev_priv =
(drm_mga_private_t *) dev->dev_private;
unsigned int temp;
drm_buf_t *buf;
drm_device_dma_t *dma = dev->dma;
drm_buf_t *buf;
drm_mga_buf_priv_t *buf_priv;
drm_device_dma_t *dma = dev->dma;
int i;
dev_priv->sync_tag++;
if(dev_priv->sync_tag < FREELIST_INITIAL) {
dev_priv->sync_tag = FREELIST_INITIAL;
}
if(dev_priv->sync_tag > 0x3fffffff) {
mga_flush_queue(dev);
mga_dma_quiescent(dev);
for (i = 0; i < dma->buf_count; i++) {
buf = dma->buflist[ i ];
buf_priv = buf->dev_private;
buf_priv->my_freelist->age = MGA_BUF_FREE;
}
dev_priv->sync_tag = FREELIST_INITIAL;
}
temp = dev_priv->sync_tag << 2;
int i;
dev_priv->sarea_priv->last_enqueue = temp;
DRM_DEBUG("sync_tag : %x\n", temp);
return temp;
for (i = 0; i < dma->buf_count; i++) {
buf = dma->buflist[ i ];
buf_priv = buf->dev_private;
buf_priv->my_freelist->age = MGA_BUF_FREE;
}
}
/* Least recently used :
@ -258,23 +220,52 @@ unsigned int mga_create_sync_tag(drm_device_t *dev)
drm_buf_t *mga_freelist_get(drm_device_t *dev)
{
DECLARE_WAITQUEUE(entry, current);
drm_mga_private_t *dev_priv =
(drm_mga_private_t *) dev->dev_private;
__volatile__ unsigned int *status =
(__volatile__ unsigned int *)dev_priv->status_page;
drm_mga_freelist_t *prev;
drm_mga_freelist_t *next;
static int failed = 0;
DRM_DEBUG("%s : tail->age : %d last_prim_age : %d\n", __FUNCTION__,
dev_priv->tail->age, dev_priv->last_prim_age);
if((dev_priv->tail->age >> 2) <= FREELIST_COMPARE(status[1])) {
if(failed >= 1000 && dev_priv->tail->age >= dev_priv->last_prim_age) {
DRM_DEBUG("I'm waiting on the freelist!!! %d\n",
dev_priv->last_prim_age);
set_bit(MGA_IN_GETBUF, &dev_priv->dispatch_status);
current->state = TASK_INTERRUPTIBLE;
add_wait_queue(&dev_priv->buf_queue, &entry);
for (;;) {
mga_dma_schedule(dev, 0);
if(!test_bit(MGA_IN_GETBUF,
&dev_priv->dispatch_status))
break;
atomic_inc(&dev->total_sleeps);
schedule();
if (signal_pending(current)) {
clear_bit(MGA_IN_GETBUF,
&dev_priv->dispatch_status);
goto failed_getbuf;
}
}
current->state = TASK_RUNNING;
remove_wait_queue(&dev_priv->buf_queue, &entry);
}
if(dev_priv->tail->age < dev_priv->last_prim_age) {
prev = dev_priv->tail->prev;
next = dev_priv->tail;
prev->next = NULL;
next->prev = next->next = NULL;
dev_priv->tail = prev;
next->age = MGA_BUF_USED;
failed = 0;
return next->buf;
}
}
failed_getbuf:
failed++;
return NULL;
}
@ -287,6 +278,8 @@ int mga_freelist_put(drm_device_t *dev, drm_buf_t *buf)
drm_mga_freelist_t *head;
drm_mga_freelist_t *next;
DRM_DEBUG("%s\n", __FUNCTION__);
if(buf_priv->my_freelist->age == MGA_BUF_USED) {
/* Discarded buffer, put it on the tail */
next = buf_priv->my_freelist;
@ -313,32 +306,6 @@ int mga_freelist_put(drm_device_t *dev, drm_buf_t *buf)
return 0;
}
static void mga_print_all_primary(drm_device_t *dev)
{
drm_mga_private_t *dev_priv = dev->dev_private;
drm_mga_prim_buf_t *prim;
int i;
DRM_DEBUG("Full list of primarys\n");
for(i = 0; i < MGA_NUM_PRIM_BUFS; i++) {
prim = dev_priv->prim_bufs[i];
DRM_DEBUG("index : %d num_dwords : %d "
"max_dwords : %d phy_head : %x\n",
prim->idx, prim->num_dwords,
prim->max_dwords, prim->phys_head);
DRM_DEBUG("sec_used : %d swap_pending : %x "
"in_use : %x force_fire : %d\n",
prim->sec_used, prim->swap_pending,
prim->in_use, atomic_read(&prim->force_fire));
DRM_DEBUG("needs_overflow : %d\n",
atomic_read(&prim->needs_overflow));
}
DRM_DEBUG("current_idx : %d, next_idx : %d, last_idx : %d\n",
dev_priv->next_prim->idx, dev_priv->last_prim->idx,
dev_priv->current_prim->idx);
}
static int mga_init_primary_bufs(drm_device_t *dev, drm_mga_init_t *init)
{
drm_mga_private_t *dev_priv = dev->dev_private;
@ -346,10 +313,9 @@ static int mga_init_primary_bufs(drm_device_t *dev, drm_mga_init_t *init)
int i, temp, size_of_buf;
int offset = init->reserved_map_agpstart;
DRM_DEBUG("mga_init_primary_bufs\n");
DRM_DEBUG("%s\n", __FUNCTION__);
dev_priv->primary_size = ((init->primary_size + PAGE_SIZE - 1) /
PAGE_SIZE) * PAGE_SIZE;
DRM_DEBUG("primary_size\n");
size_of_buf = dev_priv->primary_size / MGA_NUM_PRIM_BUFS;
dev_priv->warp_ucode_size = init->warp_ucode_size;
dev_priv->prim_bufs = drm_alloc(sizeof(drm_mga_prim_buf_t *) *
@ -359,18 +325,12 @@ static int mga_init_primary_bufs(drm_device_t *dev, drm_mga_init_t *init)
DRM_ERROR("Unable to allocate memory for prim_buf\n");
return -ENOMEM;
}
DRM_DEBUG("memset\n");
memset(dev_priv->prim_bufs,
0, sizeof(drm_mga_prim_buf_t *) * (MGA_NUM_PRIM_BUFS + 1));
temp = init->warp_ucode_size + dev_priv->primary_size;
temp = ((temp + PAGE_SIZE - 1) / PAGE_SIZE) * PAGE_SIZE;
DRM_DEBUG("temp : %x\n", temp);
DRM_DEBUG("dev->agp->base: %lx\n", dev->agp->base);
DRM_DEBUG("init->reserved_map_agpstart: %x\n",
init->reserved_map_agpstart);
DRM_DEBUG("ioremap\n");
dev_priv->ioremap = drm_ioremap(dev->agp->base + offset,
temp);
if(dev_priv->ioremap == NULL) {
@ -380,11 +340,9 @@ static int mga_init_primary_bufs(drm_device_t *dev, drm_mga_init_t *init)
init_waitqueue_head(&dev_priv->wait_queue);
for(i = 0; i < MGA_NUM_PRIM_BUFS; i++) {
DRM_DEBUG("For loop\n");
prim_buffer = drm_alloc(sizeof(drm_mga_prim_buf_t),
DRM_MEM_DRIVER);
if(prim_buffer == NULL) return -ENOMEM;
DRM_DEBUG("memset\n");
memset(prim_buffer, 0, sizeof(drm_mga_prim_buf_t));
prim_buffer->phys_head = offset + dev->agp->base;
prim_buffer->current_dma_ptr =
@ -397,17 +355,18 @@ static int mga_init_primary_bufs(drm_device_t *dev, drm_mga_init_t *init)
prim_buffer->max_dwords -= 5; /* Leave room for the softrap */
prim_buffer->sec_used = 0;
prim_buffer->idx = i;
prim_buffer->prim_age = i + 1;
offset = offset + size_of_buf;
dev_priv->prim_bufs[i] = prim_buffer;
DRM_DEBUG("Looping\n");
}
dev_priv->current_prim_idx = 0;
dev_priv->next_prim =
dev_priv->last_prim =
dev_priv->current_prim =
dev_priv->prim_bufs[0];
set_bit(0, &dev_priv->current_prim->in_use);
DRM_DEBUG("init done\n");
dev_priv->next_prim_age = 2;
dev_priv->last_prim_age = 1;
set_bit(MGA_BUF_IN_USE, &dev_priv->current_prim->buffer_status);
return 0;
}
@ -421,9 +380,8 @@ void mga_fire_primary(drm_device_t *dev, drm_mga_prim_buf_t *prim)
int i;
int next_idx;
PRIMLOCALS;
DRM_DEBUG("mga_fire_primary\n");
dev_priv->last_sync_tag = mga_create_sync_tag(dev);
DRM_DEBUG("%s\n", __FUNCTION__);
dev_priv->last_prim = prim;
/* We never check for overflow, b/c there is always room */
@ -434,7 +392,7 @@ void mga_fire_primary(drm_device_t *dev, drm_mga_prim_buf_t *prim)
}
PRIMOUTREG( MGAREG_DMAPAD, 0);
PRIMOUTREG( MGAREG_DMAPAD, 0);
PRIMOUTREG( MGAREG_DWGSYNC, dev_priv->last_sync_tag);
PRIMOUTREG( MGAREG_DMAPAD, 0);
PRIMOUTREG( MGAREG_SOFTRAP, 0);
PRIMFINISH(prim);
@ -469,13 +427,13 @@ void mga_fire_primary(drm_device_t *dev, drm_mga_prim_buf_t *prim)
for (i = 0 ; i < 4096 ; i++) mga_delay();
}
}
mga_flush_write_combine();
atomic_inc(&dev_priv->pending_bufs);
atomic_inc(&dma->total_lost);
MGA_WRITE(MGAREG_PRIMADDRESS, phys_head | TT_GENERAL);
MGA_WRITE(MGAREG_PRIMEND, (phys_head + num_dwords * 4) | use_agp);
prim->num_dwords = 0;
sarea_priv->last_enqueue = prim->prim_age;
next_idx = prim->idx + 1;
if(next_idx >= MGA_NUM_PRIM_BUFS)
@ -487,11 +445,10 @@ void mga_fire_primary(drm_device_t *dev, drm_mga_prim_buf_t *prim)
out_prim_wait:
prim->num_dwords = 0;
prim->sec_used = 0;
clear_bit(0, &prim->in_use);
clear_bit(MGA_BUF_IN_USE, &prim->buffer_status);
wake_up_interruptible(&dev_priv->wait_queue);
clear_bit(0, &prim->swap_pending);
clear_bit(0, &dev_priv->dispatch_lock);
atomic_dec(&dev_priv->pending_bufs);
clear_bit(MGA_BUF_SWAP_PENDING, &prim->buffer_status);
clear_bit(MGA_IN_DISPATCH, &dev_priv->dispatch_status);
}
int mga_advance_primary(drm_device_t *dev)
@ -506,27 +463,28 @@ int mga_advance_primary(drm_device_t *dev)
/* This needs to reset the primary buffer if available,
* we should collect stats on how many times it bites
* it's tail */
DRM_DEBUG("%s\n", __FUNCTION__);
next_prim_idx = dev_priv->current_prim_idx + 1;
if(next_prim_idx >= MGA_NUM_PRIM_BUFS)
next_prim_idx = 0;
prim_buffer = dev_priv->prim_bufs[next_prim_idx];
atomic_set(&dev_priv->in_wait, 1);
set_bit(MGA_IN_WAIT, &dev_priv->dispatch_status);
/* In use is cleared in interrupt handler */
if(test_and_set_bit(0, &prim_buffer->in_use)) {
if(test_and_set_bit(MGA_BUF_IN_USE, &prim_buffer->buffer_status)) {
add_wait_queue(&dev_priv->wait_queue, &entry);
current->state = TASK_INTERRUPTIBLE;
for (;;) {
current->state = TASK_INTERRUPTIBLE;
mga_dma_schedule(dev, 0);
if(!test_and_set_bit(0, &prim_buffer->in_use)) break;
if(!test_and_set_bit(MGA_BUF_IN_USE,
&prim_buffer->buffer_status))
break;
atomic_inc(&dev->total_sleeps);
atomic_inc(&dma->total_missed_sched);
mga_print_all_primary(dev);
DRM_DEBUG("Schedule in advance\n");
/* Three second delay */
schedule_timeout(HZ*3);
schedule();
if (signal_pending(current)) {
ret = -ERESTARTSYS;
break;
@ -536,16 +494,27 @@ int mga_advance_primary(drm_device_t *dev)
remove_wait_queue(&dev_priv->wait_queue, &entry);
if(ret) return ret;
}
atomic_set(&dev_priv->in_wait, 0);
clear_bit(MGA_IN_WAIT, &dev_priv->dispatch_status);
/* This primary buffer is now free to use */
prim_buffer->current_dma_ptr = prim_buffer->head;
prim_buffer->num_dwords = 0;
prim_buffer->sec_used = 0;
atomic_set(&prim_buffer->needs_overflow, 0);
prim_buffer->prim_age = dev_priv->next_prim_age++;
if(prim_buffer->prim_age == 0 || prim_buffer->prim_age == 0xffffffff) {
mga_flush_queue(dev);
mga_dma_quiescent(dev);
mga_reset_freelist(dev);
prim_buffer->prim_age = (dev_priv->next_prim_age += 2);
}
/* Reset all buffer status stuff */
clear_bit(MGA_BUF_NEEDS_OVERFLOW, &prim_buffer->buffer_status);
clear_bit(MGA_BUF_FORCE_FIRE, &prim_buffer->buffer_status);
clear_bit(MGA_BUF_SWAP_PENDING, &prim_buffer->buffer_status);
dev_priv->current_prim = prim_buffer;
dev_priv->current_prim_idx = next_prim_idx;
DRM_DEBUG("Primarys at advance\n");
mga_print_all_primary(dev);
return 0;
}
@ -554,21 +523,29 @@ static inline int mga_decide_to_fire(drm_device_t *dev)
{
drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
drm_device_dma_t *dma = dev->dma;
if(atomic_read(&dev_priv->next_prim->force_fire))
{
DRM_DEBUG("%s\n", __FUNCTION__);
if(test_bit(MGA_BUF_FORCE_FIRE, &dev_priv->next_prim->buffer_status)) {
atomic_inc(&dma->total_prio);
return 1;
}
if (atomic_read(&dev_priv->in_flush) && dev_priv->next_prim->num_dwords)
{
if (test_bit(MGA_IN_GETBUF, &dev_priv->dispatch_status) &&
dev_priv->next_prim->num_dwords) {
atomic_inc(&dma->total_prio);
return 1;
}
if (test_bit(MGA_IN_FLUSH, &dev_priv->dispatch_status) &&
dev_priv->next_prim->num_dwords) {
atomic_inc(&dma->total_prio);
return 1;
}
if(atomic_read(&dev_priv->pending_bufs) <= MGA_NUM_PRIM_BUFS - 1) {
if(test_bit(0, &dev_priv->next_prim->swap_pending)) {
if(test_bit(MGA_BUF_SWAP_PENDING,
&dev_priv->next_prim->buffer_status)) {
atomic_inc(&dma->total_dmas);
return 1;
}
@ -602,10 +579,11 @@ int mga_dma_schedule(drm_device_t *dev, int locked)
return -EBUSY;
}
DRM_DEBUG("mga_dma_schedule\n");
DRM_DEBUG("%s\n", __FUNCTION__);
if(atomic_read(&dev_priv->in_flush) ||
atomic_read(&dev_priv->in_wait)) {
if(test_bit(MGA_IN_FLUSH, &dev_priv->dispatch_status) ||
test_bit(MGA_IN_WAIT, &dev_priv->dispatch_status) ||
test_bit(MGA_IN_GETBUF, &dev_priv->dispatch_status)) {
locked = 1;
}
@ -613,27 +591,25 @@ int mga_dma_schedule(drm_device_t *dev, int locked)
!drm_lock_take(&dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT)) {
atomic_inc(&dma->total_missed_lock);
clear_bit(0, &dev->dma_flag);
DRM_DEBUG("Not locked\n");
return -EBUSY;
}
DRM_DEBUG("I'm locked\n");
if(!test_and_set_bit(0, &dev_priv->dispatch_lock)) {
if(!test_and_set_bit(MGA_IN_DISPATCH, &dev_priv->dispatch_status)) {
/* Fire dma buffer */
if(mga_decide_to_fire(dev)) {
DRM_DEBUG("mga_fire_primary\n");
DRM_DEBUG("idx :%d\n", dev_priv->next_prim->idx);
atomic_set(&dev_priv->next_prim->force_fire, 0);
if(dev_priv->current_prim == dev_priv->next_prim &&
dev_priv->next_prim->num_dwords != 0) {
clear_bit(MGA_BUF_FORCE_FIRE,
&dev_priv->next_prim->buffer_status);
if(dev_priv->current_prim == dev_priv->next_prim) {
/* Schedule overflow for a later time */
atomic_set(
&dev_priv->current_prim->needs_overflow,
1);
set_bit(MGA_BUF_NEEDS_OVERFLOW,
&dev_priv->next_prim->buffer_status);
}
mga_fire_primary(dev, dev_priv->next_prim);
} else {
clear_bit(0, &dev_priv->dispatch_lock);
clear_bit(MGA_IN_DISPATCH, &dev_priv->dispatch_status);
}
} else {
DRM_DEBUG("I can't get the dispatch lock\n");
@ -646,17 +622,26 @@ int mga_dma_schedule(drm_device_t *dev, int locked)
}
}
clear_bit(0, &dev->dma_flag);
if(atomic_read(&dev_priv->in_flush) == 1 &&
dev_priv->next_prim->num_dwords == 0) {
/* Everything is on the hardware */
DRM_DEBUG("Primarys at Flush\n");
mga_print_all_primary(dev);
atomic_set(&dev_priv->in_flush, 0);
if(test_bit(MGA_IN_FLUSH, &dev_priv->dispatch_status) &&
dev_priv->next_prim->num_dwords == 0 &&
atomic_read(&dev_priv->pending_bufs) == 0) {
/* Everything has been processed by the hardware */
clear_bit(MGA_IN_FLUSH, &dev_priv->dispatch_status);
wake_up_interruptible(&dev_priv->flush_queue);
}
if(test_bit(MGA_IN_GETBUF, &dev_priv->dispatch_status) &&
dev_priv->tail->age < dev_priv->last_prim_age) {
clear_bit(MGA_IN_GETBUF, &dev_priv->dispatch_status);
DRM_DEBUG("Waking up buf queue\n");
wake_up_interruptible(&dev_priv->buf_queue);
} else if (test_bit(MGA_IN_GETBUF, &dev_priv->dispatch_status)) {
DRM_DEBUG("Not waking buf_queue on %d %d\n",
atomic_read(&dev->total_irq),
dev_priv->last_prim_age);
}
clear_bit(0, &dev->dma_flag);
return 0;
}
@ -665,33 +650,35 @@ static void mga_dma_service(int irq, void *device, struct pt_regs *regs)
drm_device_t *dev = (drm_device_t *)device;
drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
drm_mga_prim_buf_t *last_prim_buffer;
__volatile__ unsigned int *status =
(__volatile__ unsigned int *)dev_priv->status_page;
DRM_DEBUG("%s\n", __FUNCTION__);
atomic_inc(&dev->total_irq);
if((MGA_READ(MGAREG_STATUS) & 0x00000001) != 0x00000001) return;
MGA_WRITE(MGAREG_ICLEAR, 0x00000001);
last_prim_buffer = dev_priv->last_prim;
last_prim_buffer->num_dwords = 0;
last_prim_buffer->sec_used = 0;
clear_bit(0, &last_prim_buffer->in_use);
dev_priv->sarea_priv->last_dispatch =
dev_priv->last_prim_age = last_prim_buffer->prim_age;
clear_bit(MGA_BUF_IN_USE, &last_prim_buffer->buffer_status);
wake_up_interruptible(&dev_priv->wait_queue);
clear_bit(0, &last_prim_buffer->swap_pending);
clear_bit(0, &dev_priv->dispatch_lock);
clear_bit(MGA_BUF_SWAP_PENDING, &last_prim_buffer->buffer_status);
clear_bit(MGA_IN_DISPATCH, &dev_priv->dispatch_status);
atomic_dec(&dev_priv->pending_bufs);
dev_priv->sarea_priv->last_dispatch = status[1];
queue_task(&dev->tq, &tq_immediate);
mark_bh(IMMEDIATE_BH);
}
static void mga_dma_task_queue(void *device)
{
drm_device_t *dev = (drm_device_t *) device;
mga_dma_schedule(dev, 0);
DRM_DEBUG("%s\n", __FUNCTION__);
mga_dma_schedule((drm_device_t *)device, 0);
}
int mga_dma_cleanup(drm_device_t *dev)
{
DRM_DEBUG("%s\n", __FUNCTION__);
if(dev->dev_private) {
drm_mga_private_t *dev_priv =
(drm_mga_private_t *) dev->dev_private;
@ -740,14 +727,13 @@ static int mga_dma_initialize(drm_device_t *dev, drm_mga_init_t *init) {
drm_map_t *sarea_map = NULL;
int i;
DRM_DEBUG("%s\n", __FUNCTION__);
dev_priv = drm_alloc(sizeof(drm_mga_private_t), DRM_MEM_DRIVER);
if(dev_priv == NULL) return -ENOMEM;
dev->dev_private = (void *) dev_priv;
DRM_DEBUG("dev_private\n");
memset(dev_priv, 0, sizeof(drm_mga_private_t));
atomic_set(&dev_priv->in_flush, 0);
if((init->reserved_map_idx >= dev->map_count) ||
(init->buffer_map_idx >= dev->map_count)) {
@ -762,7 +748,6 @@ static int mga_dma_initialize(drm_device_t *dev, drm_mga_init_t *init) {
dev_priv->sarea_priv = (drm_mga_sarea_t *)
((u8 *)sarea_map->handle +
init->sarea_priv_offset);
DRM_DEBUG("sarea_priv\n");
/* Scale primary size to the next page */
dev_priv->chipset = init->chipset;
@ -777,6 +762,7 @@ static int mga_dma_initialize(drm_device_t *dev, drm_mga_init_t *init) {
dev_priv->mAccess = init->mAccess;
init_waitqueue_head(&dev_priv->flush_queue);
init_waitqueue_head(&dev_priv->buf_queue);
dev_priv->WarpPipe = -1;
DRM_DEBUG("chipset: %d ucode_size: %d backOffset: %x depthOffset: %x\n",
@ -796,20 +782,17 @@ static int mga_dma_initialize(drm_device_t *dev, drm_mga_init_t *init) {
dev_priv->WarpIndex[i].phys_addr,
dev_priv->WarpIndex[i].size);
DRM_DEBUG("Doing init prim buffers\n");
if(mga_init_primary_bufs(dev, init) != 0) {
DRM_ERROR("Can not initialize primary buffers\n");
mga_dma_cleanup(dev);
return -ENOMEM;
}
DRM_DEBUG("Done with init prim buffers\n");
dev_priv->real_status_page = mga_alloc_page(dev);
if(dev_priv->real_status_page == 0UL) {
mga_dma_cleanup(dev);
DRM_ERROR("Can not allocate status page\n");
return -ENOMEM;
}
DRM_DEBUG("Status page at %lx\n", dev_priv->real_status_page);
dev_priv->status_page =
ioremap_nocache(virt_to_bus((void *)dev_priv->real_status_page),
@ -821,38 +804,23 @@ static int mga_dma_initialize(drm_device_t *dev, drm_mga_init_t *init) {
return -ENOMEM;
}
DRM_DEBUG("Status page remapped to %p\n", dev_priv->status_page);
/* Write status page when secend or softrap occurs */
MGA_WRITE(MGAREG_PRIMPTR,
virt_to_bus((void *)dev_priv->real_status_page) | 0x00000003);
dev_priv->device = pci_find_device(0x102b, 0x0525, NULL);
if(dev_priv->device == NULL) {
DRM_ERROR("Could not find pci device for card\n");
mga_dma_cleanup(dev);
return -EINVAL;
}
DRM_DEBUG("dma initialization\n");
/* Private is now filled in, initialize the hardware */
{
__volatile__ unsigned int *status =
(unsigned int *)dev_priv->status_page;
PRIMLOCALS;
PRIMGETPTR( dev_priv );
dev_priv->last_sync_tag = mga_create_sync_tag(dev);
PRIMOUTREG(MGAREG_DMAPAD, 0);
PRIMOUTREG(MGAREG_DMAPAD, 0);
PRIMOUTREG(MGAREG_DWGSYNC, dev_priv->last_sync_tag);
PRIMOUTREG(MGAREG_DWGSYNC, 0x0100);
PRIMOUTREG(MGAREG_SOFTRAP, 0);
/* Poll for the first buffer to insure that
* the status register will be correct
*/
DRM_DEBUG("phys_head : %lx\n", (unsigned long)phys_head);
status[1] = 0;
mga_flush_write_combine();
MGA_WRITE(MGAREG_PRIMADDRESS, phys_head | TT_GENERAL);
@ -860,9 +828,7 @@ static int mga_dma_initialize(drm_device_t *dev, drm_mga_init_t *init) {
MGA_WRITE(MGAREG_PRIMEND, ((phys_head + num_dwords * 4) |
PDEA_pagpxfer_enable));
while(MGA_READ(MGAREG_DWGSYNC) != dev_priv->last_sync_tag) ;
DRM_DEBUG("status[0] after initialization : %x\n", status[0]);
DRM_DEBUG("status[1] after initialization : %x\n", status[1]);
while(MGA_READ(MGAREG_DWGSYNC) != 0x0100) ;
}
if(mga_freelist_init(dev) != 0) {
@ -870,7 +836,6 @@ static int mga_dma_initialize(drm_device_t *dev, drm_mga_init_t *init) {
mga_dma_cleanup(dev);
return -ENOMEM;
}
DRM_DEBUG("dma init was successful\n");
return 0;
}
@ -881,6 +846,8 @@ int mga_dma_init(struct inode *inode, struct file *filp,
drm_device_t *dev = priv->dev;
drm_mga_init_t init;
DRM_DEBUG("%s\n", __FUNCTION__);
copy_from_user_ret(&init, (drm_mga_init_t *)arg, sizeof(init), -EFAULT);
switch(init.func) {
@ -925,7 +892,7 @@ int mga_irq_install(drm_device_t *dev, int irq)
/* Install handler */
if ((retcode = request_irq(dev->irq,
mga_dma_service,
0,
SA_SHIRQ,
dev->devname,
dev))) {
down(&dev->struct_sem);
@ -964,7 +931,9 @@ int mga_control(struct inode *inode, struct file *filp, unsigned int cmd,
drm_control_t ctl;
copy_from_user_ret(&ctl, (drm_control_t *)arg, sizeof(ctl), -EFAULT);
DRM_DEBUG("%s\n", __FUNCTION__);
switch (ctl.func) {
case DRM_INST_HANDLER:
return mga_irq_install(dev, ctl.irq);
@ -981,30 +950,33 @@ static int mga_flush_queue(drm_device_t *dev)
drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
int ret = 0;
DRM_DEBUG("%s\n", __FUNCTION__);
if(dev_priv == NULL) {
return 0;
}
if(dev_priv->next_prim->num_dwords != 0) {
atomic_set(&dev_priv->in_flush, 1);
set_bit(MGA_IN_FLUSH, &dev_priv->dispatch_status);
current->state = TASK_INTERRUPTIBLE;
add_wait_queue(&dev_priv->flush_queue, &entry);
for (;;) {
mga_dma_schedule(dev, 0);
if (atomic_read(&dev_priv->in_flush) == 0)
if (!test_bit(MGA_IN_FLUSH,
&dev_priv->dispatch_status))
break;
atomic_inc(&dev->total_sleeps);
DRM_DEBUG("Schedule in flush_queue\n");
schedule_timeout(HZ*3);
schedule();
if (signal_pending(current)) {
ret = -EINTR; /* Can't restart */
clear_bit(MGA_IN_FLUSH,
&dev_priv->dispatch_status);
break;
}
}
current->state = TASK_RUNNING;
remove_wait_queue(&dev_priv->flush_queue, &entry);
}
atomic_set(&dev_priv->in_flush, 0);
return ret;
}
@ -1018,6 +990,7 @@ void mga_reclaim_buffers(drm_device_t *dev, pid_t pid)
if(dev->dev_private == NULL) return;
if(dma->buflist == NULL) return;
DRM_DEBUG("%s\n", __FUNCTION__);
mga_flush_queue(dev);
for (i = 0; i < dma->buf_count; i++) {
@ -1043,6 +1016,7 @@ int mga_lock(struct inode *inode, struct file *filp, unsigned int cmd,
int ret = 0;
drm_lock_t lock;
DRM_DEBUG("%s\n", __FUNCTION__);
copy_from_user_ret(&lock, (drm_lock_t *)arg, sizeof(lock), -EFAULT);
if (lock.context == DRM_KERNEL_CONTEXT) {
@ -1081,7 +1055,6 @@ int mga_lock(struct inode *inode, struct file *filp, unsigned int cmd,
/* Contention */
atomic_inc(&dev->total_sleeps);
current->state = TASK_INTERRUPTIBLE;
DRM_DEBUG("Calling lock schedule\n");
schedule();
if (signal_pending(current)) {
ret = -ERESTARTSYS;
@ -1111,11 +1084,8 @@ int mga_flush_ioctl(struct inode *inode, struct file *filp,
drm_device_t *dev = priv->dev;
drm_lock_t lock;
drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
__volatile__ unsigned int *status =
(__volatile__ unsigned int *)dev_priv->status_page;
int i;
DRM_DEBUG("%s\n", __FUNCTION__);
copy_from_user_ret(&lock, (drm_lock_t *)arg, sizeof(lock), -EFAULT);
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
@ -1124,28 +1094,17 @@ int mga_flush_ioctl(struct inode *inode, struct file *filp,
}
if(lock.flags & _DRM_LOCK_FLUSH || lock.flags & _DRM_LOCK_FLUSH_ALL) {
mga_flush_queue(dev);
drm_mga_prim_buf_t *temp_buf =
dev_priv->prim_bufs[dev_priv->current_prim_idx];
if((MGA_READ(MGAREG_STATUS) & 0x00030001) == 0x00020000 &&
status[1] != dev_priv->last_sync_tag)
{
DRM_DEBUG("Reseting hardware status\n");
MGA_WRITE(MGAREG_DWGSYNC, dev_priv->last_sync_tag);
while(MGA_READ(MGAREG_DWGSYNC) !=
dev_priv->last_sync_tag)
{
for(i = 0; i < 4096; i++) mga_delay();
}
status[1] =
sarea_priv->last_dispatch =
dev_priv->last_sync_tag;
} else {
sarea_priv->last_dispatch = status[1];
}
if(temp_buf && temp_buf->num_dwords) {
set_bit(MGA_BUF_FORCE_FIRE, &temp_buf->buffer_status);
mga_advance_primary(dev);
mga_dma_schedule(dev, 1);
}
}
if(lock.flags & _DRM_LOCK_QUIESCENT) {
mga_flush_queue(dev);
mga_dma_quiescent(dev);
}

54
linux/mga_drm.h
View File

@ -37,6 +37,7 @@
*/
#ifndef _MGA_DEFINES_
#define _MGA_DEFINES_
#define MGA_F 0x1 /* fog */
#define MGA_A 0x2 /* alpha */
#define MGA_S 0x4 /* specular */
@ -61,11 +62,11 @@
#define MGA_MAX_G400_PIPES 16
#define MGA_MAX_G200_PIPES 8 /* no multitex */
#define MGA_MAX_WARP_PIPES MGA_MAX_G400_PIPES
#define MGA_CARD_TYPE_G200 1
#define MGA_CARD_TYPE_G400 2
#define MGA_FRONT 0x1
#define MGA_BACK 0x2
#define MGA_DEPTH 0x4
@ -110,19 +111,19 @@
#define MGA_UPLOAD_TEX0 0x2
#define MGA_UPLOAD_TEX1 0x4
#define MGA_UPLOAD_PIPE 0x8
#define MGA_UPLOAD_TEX0IMAGE 0x10
#define MGA_UPLOAD_TEX1IMAGE 0x20
#define MGA_UPLOAD_TEX0IMAGE 0x10 /* handled client-side */
#define MGA_UPLOAD_TEX1IMAGE 0x20 /* handled client-side */
#define MGA_UPLOAD_2D 0x40
#define MGA_WAIT_AGE 0x80 /* handled client-side */
#define MGA_UPLOAD_CLIPRECTS 0x100 /* handled client-side */
#define MGA_DMA_FLUSH 0x200 /* set when someone gets the lock
quiescent */
/* 64 buffers of 16k each, total 1 meg.
/* 32 buffers of 64k each, total 2 meg.
*/
#define MGA_DMA_BUF_ORDER 14
#define MGA_DMA_BUF_ORDER 16
#define MGA_DMA_BUF_SZ (1<<MGA_DMA_BUF_ORDER)
#define MGA_DMA_BUF_NR 63
#define MGA_DMA_BUF_NR 31
/* Keep these small for testing.
*/
@ -159,19 +160,19 @@ typedef struct drm_mga_init {
int sarea_priv_offset;
int primary_size;
int warp_ucode_size;
int frontOffset;
int backOffset;
int depthOffset;
int textureOffset;
int textureSize;
int agpTextureOffset;
int agpTextureSize;
int cpp;
int stride;
unsigned int frontOffset;
unsigned int backOffset;
unsigned int depthOffset;
unsigned int textureOffset;
unsigned int textureSize;
unsigned int agpTextureOffset;
unsigned int agpTextureSize;
unsigned int cpp;
unsigned int stride;
int sgram;
int chipset;
drm_mga_warp_index_t WarpIndex[MGA_MAX_WARP_PIPES];
int mAccess;
unsigned int mAccess;
} drm_mga_init_t;
/* Warning: if you change the sarea structure, you must change the Xserver
@ -180,7 +181,7 @@ typedef struct drm_mga_init {
typedef struct _drm_mga_tex_region {
unsigned char next, prev;
unsigned char in_use;
int age;
unsigned int age;
} drm_mga_tex_region_t;
typedef struct _drm_mga_sarea {
@ -219,9 +220,9 @@ typedef struct _drm_mga_sarea {
/* Counters for aging textures and for client-side throttling.
*/
int last_enqueue; /* last time a buffer was enqueued */
int last_dispatch; /* age of the most recently dispatched buffer */
int last_quiescent; /* */
unsigned int last_enqueue; /* last time a buffer was enqueued */
unsigned int last_dispatch; /* age of the most recently dispatched buffer */
unsigned int last_quiescent; /* */
/* LRU lists for texture memory in agp space and on the card
@ -237,9 +238,9 @@ typedef struct _drm_mga_sarea {
/* Device specific ioctls:
*/
typedef struct _drm_mga_clear {
int clear_color;
int clear_depth;
int flags;
unsigned int clear_color;
unsigned int clear_depth;
unsigned int flags;
} drm_mga_clear_t;
typedef struct _drm_mga_swap {
@ -258,4 +259,11 @@ typedef struct _drm_mga_vertex {
int discard; /* client finished with buffer? */
} drm_mga_vertex_t;
typedef struct _drm_mga_indices {
int idx; /* buffer to queue */
unsigned int start;
unsigned int end;
int discard; /* client finished with buffer? */
} drm_mga_indices_t;
#endif

1
linux/mga_drv.c
View File

@ -111,6 +111,7 @@ static drm_ioctl_desc_t mga_ioctls[] = {
[DRM_IOCTL_NR(DRM_IOCTL_MGA_ILOAD)] = { mga_iload, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_MGA_VERTEX)] = { mga_vertex, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_MGA_FLUSH)] = { mga_flush_ioctl, 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_MGA_INDICES)] = { mga_indices, 1, 0 },
};
#define MGA_IOCTL_COUNT DRM_ARRAY_SIZE(mga_ioctls)

74
linux/mga_drv.h
View File

@ -32,18 +32,21 @@
#ifndef _MGA_DRV_H_
#define _MGA_DRV_H_
#define MGA_BUF_IN_USE 0
#define MGA_BUF_SWAP_PENDING 1
#define MGA_BUF_FORCE_FIRE 2
#define MGA_BUF_NEEDS_OVERFLOW 3
typedef struct {
u32 buffer_status;
unsigned int num_dwords;
unsigned int max_dwords;
u32 *current_dma_ptr;
u32 *head;
u32 phys_head;
unsigned int prim_age;
int sec_used;
int idx;
int swap_pending;
u32 in_use;
atomic_t force_fire;
atomic_t needs_overflow;
} drm_mga_prim_buf_t;
typedef struct _drm_mga_freelist {
@ -53,31 +56,33 @@ typedef struct _drm_mga_freelist {
struct _drm_mga_freelist *prev;
} drm_mga_freelist_t;
#define MGA_IN_DISPATCH 0
#define MGA_IN_FLUSH 1
#define MGA_IN_WAIT 2
#define MGA_IN_GETBUF 3
typedef struct _drm_mga_private {
u32 dispatch_status;
unsigned int next_prim_age;
__volatile__ unsigned int last_prim_age;
int reserved_map_idx;
int buffer_map_idx;
drm_mga_sarea_t *sarea_priv;
int primary_size;
int warp_ucode_size;
int chipset;
int frontOffset;
int backOffset;
int depthOffset;
int textureOffset;
int textureSize;
unsigned int frontOffset;
unsigned int backOffset;
unsigned int depthOffset;
unsigned int textureOffset;
unsigned int textureSize;
int cpp;
int stride;
unsigned int stride;
int sgram;
int use_agp;
drm_mga_warp_index_t WarpIndex[MGA_MAX_G400_PIPES];
unsigned int WarpPipe;
__volatile__ unsigned long softrap_age;
u32 dispatch_lock;
atomic_t in_flush;
atomic_t in_wait;
atomic_t pending_bufs;
unsigned int last_sync_tag;
unsigned int sync_tag;
void *status_page;
unsigned long real_status_page;
u8 *ioremap;
@ -86,12 +91,11 @@ typedef struct _drm_mga_private {
drm_mga_prim_buf_t *last_prim;
drm_mga_prim_buf_t *current_prim;
int current_prim_idx;
struct pci_dev *device;
drm_mga_freelist_t *head;
drm_mga_freelist_t *tail;
wait_queue_head_t flush_queue; /* Processes waiting until flush */
wait_queue_head_t wait_queue; /* Processes waiting until interrupt */
wait_queue_head_t buf_queue; /* Processes waiting for a free buf */
/* Some validated register values:
*/
u32 mAccess;
@ -126,7 +130,7 @@ extern int mga_dma_init(struct inode *inode, struct file *filp,
extern int mga_dma_cleanup(drm_device_t *dev);
extern int mga_flush_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern void mga_flush_write_combine(void);
extern unsigned int mga_create_sync_tag(drm_device_t *dev);
extern drm_buf_t *mga_freelist_get(drm_device_t *dev);
extern int mga_freelist_put(drm_device_t *dev, drm_buf_t *buf);
@ -156,6 +160,8 @@ extern int mga_iload(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int mga_vertex(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
extern int mga_indices(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
/* mga_context.c */
extern int mga_resctx(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
@ -186,6 +192,7 @@ typedef enum {
typedef struct {
drm_mga_freelist_t *my_freelist;
int discard;
int dispatched;
} drm_mga_buf_priv_t;
#define DWGREG0 0x1c00
@ -206,15 +213,16 @@ typedef struct {
#define PRIM_OVERFLOW(dev, dev_priv, length) do { \
drm_mga_prim_buf_t *tmp_buf = \
dev_priv->prim_bufs[dev_priv->current_prim_idx]; \
if( tmp_buf->max_dwords - tmp_buf->num_dwords < length || \
tmp_buf->sec_used > MGA_DMA_BUF_NR/2) { \
atomic_set(&tmp_buf->force_fire, 1); \
mga_advance_primary(dev); \
mga_dma_schedule(dev, 1); \
} else if( atomic_read(&tmp_buf->needs_overflow)) { \
mga_advance_primary(dev); \
mga_dma_schedule(dev, 1); \
dev_priv->prim_bufs[dev_priv->current_prim_idx]; \
if( test_bit(MGA_BUF_NEEDS_OVERFLOW, \
&tmp_buf->buffer_status)) { \
mga_advance_primary(dev); \
mga_dma_schedule(dev, 1); \
} else if( tmp_buf->max_dwords - tmp_buf->num_dwords < length ||\
tmp_buf->sec_used > MGA_DMA_BUF_NR/2) { \
set_bit(MGA_BUF_FORCE_FIRE, &tmp_buf->buffer_status); \
mga_advance_primary(dev); \
mga_dma_schedule(dev, 1); \
} \
} while(0)
@ -266,6 +274,13 @@ drm_mga_prim_buf_t *tmp_buf = \
tmp_buf->sec_used++; \
} while (0)
#define AGEBUF(dev_priv, buf_priv) do { \
drm_mga_prim_buf_t *tmp_buf = \
dev_priv->prim_bufs[dev_priv->current_prim_idx]; \
buf_priv->my_freelist->age = tmp_buf->prim_age; \
} while (0)
#define PRIMOUTREG(reg, val) do { \
tempIndex[outcount]=ADRINDEX(reg); \
dma_ptr[1+outcount] = val; \
@ -379,6 +394,9 @@ drm_mga_prim_buf_t *tmp_buf = \
#define DC_pattern_disable 0x0
#define DC_transc_disable 0x0
#define SETADD_mode_vertlist 0x0
#define MGA_CLEAR_CMD (DC_opcod_trap | DC_arzero_enable | \
DC_sgnzero_enable | DC_shftzero_enable | \
(0xC << DC_bop_SHIFT) | DC_clipdis_enable | \

250
linux/mga_state.c
View File

@ -41,14 +41,15 @@ static void mgaEmitClipRect( drm_mga_private_t *dev_priv,
drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
unsigned int *regs = sarea_priv->ContextState;
PRIMLOCALS;
DRM_DEBUG("%s\n", __FUNCTION__);
/* This takes 10 dwords */
PRIMGETPTR( dev_priv );
/* Force reset of dwgctl (eliminates clip disable) */
PRIMOUTREG( MGAREG_DMAPAD, 0 );
PRIMOUTREG( MGAREG_DWGSYNC, dev_priv->last_sync_tag - 1 );
PRIMOUTREG( MGAREG_DWGSYNC, dev_priv->last_sync_tag - 1 );
PRIMOUTREG( MGAREG_DWGSYNC, 0 );
PRIMOUTREG( MGAREG_DWGSYNC, 0 );
PRIMOUTREG( MGAREG_DWGCTL, regs[MGA_CTXREG_DWGCTL] );
PRIMOUTREG( MGAREG_DMAPAD, 0 );
@ -64,6 +65,7 @@ static void mgaEmitContext(drm_mga_private_t *dev_priv )
drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
unsigned int *regs = sarea_priv->ContextState;
PRIMLOCALS;
DRM_DEBUG("%s\n", __FUNCTION__);
/* This takes a max of 15 dwords */
PRIMGETPTR( dev_priv );
@ -98,6 +100,7 @@ static void mgaG200EmitTex( drm_mga_private_t *dev_priv )
drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
unsigned int *regs = sarea_priv->TexState[0];
PRIMLOCALS;
DRM_DEBUG("%s\n", __FUNCTION__);
PRIMGETPTR( dev_priv );
@ -132,6 +135,7 @@ static void mgaG400EmitTex0( drm_mga_private_t *dev_priv )
unsigned int *regs = sarea_priv->TexState[0];
int multitex = sarea_priv->WarpPipe & MGA_T2;
PRIMLOCALS;
DRM_DEBUG("%s\n", __FUNCTION__);
PRIMGETPTR( dev_priv );
@ -179,6 +183,7 @@ static void mgaG400EmitTex1( drm_mga_private_t *dev_priv )
drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
unsigned int *regs = sarea_priv->TexState[1];
PRIMLOCALS;
DRM_DEBUG("%s\n", __FUNCTION__);
PRIMGETPTR(dev_priv);
@ -217,6 +222,7 @@ static void mgaG400EmitPipe(drm_mga_private_t *dev_priv )
unsigned int pipe = sarea_priv->WarpPipe;
float fParam = 12800.0f;
PRIMLOCALS;
DRM_DEBUG("%s\n", __FUNCTION__);
PRIMGETPTR(dev_priv);
@ -255,7 +261,7 @@ static void mgaG400EmitPipe(drm_mga_private_t *dev_priv )
PRIMOUTREG(MGAREG_DMAPAD, 0xffffffff);
PRIMOUTREG(MGAREG_DMAPAD, 0xffffffff);
PRIMOUTREG(MGAREG_DMAPAD, 0xffffffff);
PRIMOUTREG(MGAREG_WIADDR2, (__u32)(dev_priv->WarpIndex[pipe].phys_addr |
PRIMOUTREG(MGAREG_WIADDR2, (u32)(dev_priv->WarpIndex[pipe].phys_addr |
WIA_wmode_start | WIA_wagp_agp));
PRIMADVANCE(dev_priv);
}
@ -265,6 +271,7 @@ static void mgaG200EmitPipe( drm_mga_private_t *dev_priv )
drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
unsigned int pipe = sarea_priv->WarpPipe;
PRIMLOCALS;
DRM_DEBUG("%s\n", __FUNCTION__);
PRIMGETPTR(dev_priv);
@ -284,7 +291,7 @@ static void mgaG200EmitPipe( drm_mga_private_t *dev_priv )
PRIMOUTREG(MGAREG_DMAPAD, 0xffffffff);
PRIMOUTREG(MGAREG_DMAPAD, 0xffffffff);
PRIMOUTREG(MGAREG_DMAPAD, 0xffffffff);
PRIMOUTREG(MGAREG_WIADDR, (__u32)(dev_priv->WarpIndex[pipe].phys_addr |
PRIMOUTREG(MGAREG_WIADDR, (u32)(dev_priv->WarpIndex[pipe].phys_addr |
WIA_wmode_start | WIA_wagp_agp));
PRIMADVANCE(dev_priv);
@ -294,6 +301,7 @@ static void mgaEmitState( drm_mga_private_t *dev_priv )
{
drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
unsigned int dirty = sarea_priv->dirty;
DRM_DEBUG("%s\n", __FUNCTION__);
if (dev_priv->chipset == MGA_CARD_TYPE_G400) {
int multitex = sarea_priv->WarpPipe & MGA_T2;
@ -343,6 +351,8 @@ static int mgaVerifyContext(drm_mga_private_t *dev_priv )
drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
unsigned int *regs = sarea_priv->ContextState;
DRM_DEBUG("%s\n", __FUNCTION__);
if (regs[MGA_CTXREG_DSTORG] != dev_priv->frontOffset &&
regs[MGA_CTXREG_DSTORG] != dev_priv->backOffset) {
DRM_DEBUG("BAD DSTORG: %x (front %x, back %x)\n\n",
@ -362,6 +372,8 @@ static int mgaVerifyTex(drm_mga_private_t *dev_priv,
{
drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
DRM_DEBUG("%s\n", __FUNCTION__);
if ((sarea_priv->TexState[unit][MGA_TEXREG_ORG] & 0x3) == 0x1) {
DRM_DEBUG("BAD TEXREG_ORG: %x, unit %d\n",
sarea_priv->TexState[unit][MGA_TEXREG_ORG],
@ -379,6 +391,8 @@ static int mgaVerifyState( drm_mga_private_t *dev_priv )
unsigned int dirty = sarea_priv->dirty;
int rv = 0;
DRM_DEBUG("%s\n", __FUNCTION__);
if (sarea_priv->nbox > MGA_NR_SAREA_CLIPRECTS)
sarea_priv->nbox = MGA_NR_SAREA_CLIPRECTS;
@ -409,6 +423,8 @@ static int mgaVerifyIload( drm_mga_private_t *dev_priv,
unsigned long bus_address,
unsigned int dstOrg, int length )
{
DRM_DEBUG("%s\n", __FUNCTION__);
if(dstOrg < dev_priv->textureOffset ||
dstOrg + length >
(dev_priv->textureOffset + dev_priv->textureSize)) {
@ -432,14 +448,13 @@ static void mga_dma_dispatch_tex_blit( drm_device_t *dev,
int use_agp = PDEA_pagpxfer_enable | 0x00000001;
u16 y2;
PRIMLOCALS;
DRM_DEBUG("%s\n", __FUNCTION__);
y2 = length / 64;
PRIM_OVERFLOW(dev, dev_priv, 30);
PRIMGETPTR( dev_priv );
dev_priv->last_sync_tag = mga_create_sync_tag(dev);
PRIMOUTREG( MGAREG_DSTORG, destOrg);
PRIMOUTREG( MGAREG_MACCESS, 0x00000000);
DRM_DEBUG("srcorg : %lx\n", bus_address | use_agp);
@ -459,7 +474,7 @@ static void mga_dma_dispatch_tex_blit( drm_device_t *dev,
PRIMOUTREG( MGAREG_SRCORG, 0);
PRIMOUTREG( MGAREG_PITCH, dev_priv->stride / dev_priv->cpp);
PRIMOUTREG( MGAREG_DMAPAD, 0);
PRIMOUTREG( MGAREG_DWGSYNC, dev_priv->last_sync_tag);
PRIMOUTREG( MGAREG_DMAPAD, 0);
PRIMADVANCE(dev_priv);
}
@ -475,33 +490,33 @@ static void mga_dma_dispatch_vertex(drm_device_t *dev,
int i = 0;
int primary_needed;
PRIMLOCALS;
DRM_DEBUG("%s\n", __FUNCTION__);
DRM_DEBUG("dispatch vertex %d addr 0x%lx, "
"length 0x%x nbox %d dirty %x\n",
buf->idx, address, length,
sarea_priv->nbox, sarea_priv->dirty);
dev_priv->last_sync_tag = mga_create_sync_tag(dev);
if (buf_priv->discard) {
buf_priv->my_freelist->age = dev_priv->last_sync_tag;
mga_freelist_put(dev, buf);
DRM_DEBUG("used : %d, total : %d\n", buf->used, buf->total);
if(sarea_priv->WarpPipe & MGA_T2) {
if ((buf->used/4) % 10)
DRM_DEBUG("Multitex Buf is not aligned properly!!!\n");
} else {
if ((buf->used/4) % 8)
DRM_DEBUG("Buf is not aligned properly!!!\n");
}
/* WARNING: if you change any of the state functions verify
* these numbers (Overestimating this doesn't hurt).
*/
primary_needed = (25+15+30+25+
10 +
15 * MGA_NR_SAREA_CLIPRECTS);
PRIM_OVERFLOW(dev, dev_priv, primary_needed);
mgaEmitState( dev_priv );
if (buf->used) {
/* WARNING: if you change any of the state functions verify
* these numbers (Overestimating this doesn't hurt).
*/
buf_priv->dispatched = 1;
primary_needed = (25+15+30+25+
10 +
15 * MGA_NR_SAREA_CLIPRECTS);
PRIM_OVERFLOW(dev, dev_priv, primary_needed);
mgaEmitState( dev_priv );
do {
if (i < sarea_priv->nbox) {
DRM_DEBUG("idx %d Emit box %d/%d:"
@ -521,20 +536,85 @@ static void mga_dma_dispatch_vertex(drm_device_t *dev,
PRIMOUTREG( MGAREG_DMAPAD, 0);
PRIMOUTREG( MGAREG_DMAPAD, 0);
PRIMOUTREG( MGAREG_SECADDRESS,
((__u32)address) | TT_VERTEX);
((u32)address) | TT_VERTEX);
PRIMOUTREG( MGAREG_SECEND,
(((__u32)(address + length)) |
(((u32)(address + length)) |
use_agp));
PRIMADVANCE( dev_priv );
} while (++i < sarea_priv->nbox);
}
PRIMGETPTR( dev_priv );
PRIMOUTREG(MGAREG_DMAPAD, 0);
PRIMOUTREG(MGAREG_DMAPAD, 0);
PRIMOUTREG(MGAREG_DMAPAD, 0);
PRIMOUTREG(MGAREG_DWGSYNC, dev_priv->last_sync_tag);
PRIMADVANCE( dev_priv );
if (buf_priv->discard) {
if(buf_priv->dispatched == 1) AGEBUF(dev_priv, buf_priv);
buf_priv->dispatched = 0;
mga_freelist_put(dev, buf);
}
}
static void mga_dma_dispatch_indices(drm_device_t *dev,
drm_buf_t *buf,
unsigned int start,
unsigned int end)
{
drm_mga_private_t *dev_priv = dev->dev_private;
drm_mga_buf_priv_t *buf_priv = buf->dev_private;
drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
unsigned int address = (unsigned int)buf->bus_address;
int use_agp = PDEA_pagpxfer_enable;
int i = 0;
int primary_needed;
PRIMLOCALS;
DRM_DEBUG("%s\n", __FUNCTION__);
DRM_DEBUG("dispatch indices %d addr 0x%x, "
"start 0x%x end 0x%x nbox %d dirty %x\n",
buf->idx, address, start, end,
sarea_priv->nbox, sarea_priv->dirty);
if (start != end) {
/* WARNING: if you change any of the state functions verify
* these numbers (Overestimating this doesn't hurt).
*/
buf_priv->dispatched = 1;
primary_needed = (25+15+30+25+
10 +
15 * MGA_NR_SAREA_CLIPRECTS);
PRIM_OVERFLOW(dev, dev_priv, primary_needed);
mgaEmitState( dev_priv );
do {
if (i < sarea_priv->nbox) {
DRM_DEBUG("idx %d Emit box %d/%d:"
"%d,%d - %d,%d\n",
buf->idx,
i, sarea_priv->nbox,
sarea_priv->boxes[i].x1,
sarea_priv->boxes[i].y1,
sarea_priv->boxes[i].x2,
sarea_priv->boxes[i].y2);
mgaEmitClipRect( dev_priv,
&sarea_priv->boxes[i] );
}
PRIMGETPTR(dev_priv);
PRIMOUTREG( MGAREG_DMAPAD, 0);
PRIMOUTREG( MGAREG_DMAPAD, 0);
PRIMOUTREG( MGAREG_SETUPADDRESS,
((address + start) | SETADD_mode_vertlist));
PRIMOUTREG( MGAREG_SETUPEND,
((address + end) | use_agp));
PRIMADVANCE( dev_priv );
} while (++i < sarea_priv->nbox);
}
if (buf_priv->discard) {
if(buf_priv->dispatched == 1) AGEBUF(dev_priv, buf_priv);
buf_priv->dispatched = 0;
mga_freelist_put(dev, buf);
}
}
@ -551,6 +631,7 @@ static void mga_dma_dispatch_clear( drm_device_t *dev, int flags,
int i;
int primary_needed;
PRIMLOCALS;
DRM_DEBUG("%s\n", __FUNCTION__);
if ( dev_priv->sgram )
cmd = MGA_CLEAR_CMD | DC_atype_blk;
@ -561,7 +642,6 @@ static void mga_dma_dispatch_clear( drm_device_t *dev, int flags,
if(primary_needed == 0) primary_needed = 70;
PRIM_OVERFLOW(dev, dev_priv, primary_needed);
PRIMGETPTR( dev_priv );
dev_priv->last_sync_tag = mga_create_sync_tag(dev);
for (i = 0 ; i < nbox ; i++) {
unsigned int height = pbox[i].y2 - pbox[i].y1;
@ -615,11 +695,6 @@ static void mga_dma_dispatch_clear( drm_device_t *dev, int flags,
PRIMOUTREG( MGAREG_DMAPAD, 0);
PRIMOUTREG( MGAREG_DMAPAD, 0);
PRIMOUTREG( MGAREG_DWGCTL, regs[MGA_CTXREG_DWGCTL] );
PRIMOUTREG( MGAREG_DMAPAD, 0);
PRIMOUTREG( MGAREG_DMAPAD, 0);
PRIMOUTREG( MGAREG_DMAPAD, 0);
PRIMOUTREG( MGAREG_DWGSYNC, dev_priv->last_sync_tag);
PRIMADVANCE(dev_priv);
}
@ -633,14 +708,13 @@ static void mga_dma_dispatch_swap( drm_device_t *dev )
int i;
int primary_needed;
PRIMLOCALS;
DRM_DEBUG("%s\n", __FUNCTION__);
primary_needed = nbox * 5;
primary_needed += 60;
PRIM_OVERFLOW(dev, dev_priv, primary_needed);
PRIMGETPTR( dev_priv );
dev_priv->last_sync_tag = mga_create_sync_tag(dev);
PRIMOUTREG(MGAREG_DSTORG, dev_priv->frontOffset);
PRIMOUTREG(MGAREG_MACCESS, dev_priv->mAccess);
PRIMOUTREG(MGAREG_SRCORG, dev_priv->backOffset);
@ -668,13 +742,9 @@ static void mga_dma_dispatch_swap( drm_device_t *dev )
/* Force reset of DWGCTL */
PRIMOUTREG( MGAREG_DMAPAD, 0);
PRIMOUTREG( MGAREG_DMAPAD, 0);
PRIMOUTREG( MGAREG_DMAPAD, 0);
PRIMOUTREG( MGAREG_SRCORG, 0);
PRIMOUTREG( MGAREG_DWGCTL, regs[MGA_CTXREG_DWGCTL] );
PRIMOUTREG( MGAREG_SRCORG, 0);
PRIMOUTREG( MGAREG_DMAPAD, 0);
PRIMOUTREG( MGAREG_DMAPAD, 0);
PRIMOUTREG( MGAREG_DWGSYNC, dev_priv->last_sync_tag);
PRIMADVANCE(dev_priv);
}
@ -685,12 +755,11 @@ int mga_clear_bufs(struct inode *inode, struct file *filp,
drm_device_t *dev = priv->dev;
drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
__volatile__ unsigned int *status =
(__volatile__ unsigned int *)dev_priv->status_page;
drm_mga_clear_t clear;
copy_from_user_ret(&clear, (drm_mga_clear_t *)arg, sizeof(clear),
-EFAULT);
DRM_DEBUG("%s\n", __FUNCTION__);
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("mga_clear_bufs called without lock held\n");
@ -707,8 +776,8 @@ int mga_clear_bufs(struct inode *inode, struct file *filp,
clear.clear_color,
clear.clear_depth );
PRIMUPDATE(dev_priv);
mga_flush_write_combine();
mga_dma_schedule(dev, 1);
sarea_priv->last_dispatch = status[1];
return 0;
}
@ -719,8 +788,7 @@ int mga_swap_bufs(struct inode *inode, struct file *filp,
drm_device_t *dev = priv->dev;
drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
__volatile__ unsigned int *status =
(__volatile__ unsigned int *)dev_priv->status_page;
DRM_DEBUG("%s\n", __FUNCTION__);
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("mga_swap_bufs called without lock held\n");
@ -735,10 +803,9 @@ int mga_swap_bufs(struct inode *inode, struct file *filp,
dev_priv->sarea_priv->dirty |= MGA_UPLOAD_CTX;
mga_dma_dispatch_swap( dev );
PRIMUPDATE(dev_priv);
set_bit(0, &dev_priv->current_prim->swap_pending);
dev_priv->current_prim->swap_pending = 1;
set_bit(MGA_BUF_SWAP_PENDING, &dev_priv->current_prim->buffer_status);
mga_flush_write_combine();
mga_dma_schedule(dev, 1);
sarea_priv->last_dispatch = status[1];
return 0;
}
@ -750,12 +817,11 @@ int mga_iload(struct inode *inode, struct file *filp,
drm_device_dma_t *dma = dev->dma;
drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
__volatile__ unsigned int *status =
(__volatile__ unsigned int *)dev_priv->status_page;
drm_buf_t *buf;
drm_mga_buf_priv_t *buf_priv;
drm_mga_iload_t iload;
unsigned long bus_address;
DRM_DEBUG("%s\n", __FUNCTION__);
DRM_DEBUG("Starting Iload\n");
copy_from_user_ret(&iload, (drm_mga_iload_t *)arg, sizeof(iload),
@ -784,11 +850,11 @@ int mga_iload(struct inode *inode, struct file *filp,
mga_dma_dispatch_tex_blit(dev, bus_address, iload.length,
iload.destOrg);
buf_priv->my_freelist->age = dev_priv->last_sync_tag;
AGEBUF(dev_priv, buf_priv);
buf_priv->discard = 1;
mga_freelist_put(dev, buf);
mga_flush_write_combine();
mga_dma_schedule(dev, 1);
sarea_priv->last_dispatch = status[1];
return 0;
}
@ -798,13 +864,11 @@ int mga_vertex(struct inode *inode, struct file *filp,
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
__volatile__ unsigned int *status =
(__volatile__ unsigned int *)dev_priv->status_page;
drm_device_dma_t *dma = dev->dma;
drm_buf_t *buf;
drm_mga_buf_priv_t *buf_priv;
drm_mga_vertex_t vertex;
DRM_DEBUG("%s\n", __FUNCTION__);
copy_from_user_ret(&vertex, (drm_mga_vertex_t *)arg, sizeof(vertex),
-EFAULT);
@ -823,25 +887,75 @@ int mga_vertex(struct inode *inode, struct file *filp,
buf_priv->discard = vertex.discard;
if (!mgaVerifyState(dev_priv)) {
if (vertex.discard) {
buf_priv->my_freelist->age = dev_priv->last_sync_tag;
mga_freelist_put(dev, buf);
if (vertex.discard) {
if(buf_priv->dispatched == 1) AGEBUF(dev_priv, buf_priv);
buf_priv->dispatched = 0;
mga_freelist_put(dev, buf);
}
DRM_DEBUG("bad state\n");
return -EINVAL;
}
mga_dma_dispatch_vertex(dev, buf);
PRIMUPDATE(dev_priv);
mga_flush_write_combine();
mga_dma_schedule(dev, 1);
sarea_priv->last_dispatch = status[1];
return 0;
}
int mga_indices(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
drm_device_dma_t *dma = dev->dma;
drm_buf_t *buf;
drm_mga_buf_priv_t *buf_priv;
drm_mga_indices_t indices;
DRM_DEBUG("%s\n", __FUNCTION__);
copy_from_user_ret(&indices, (drm_mga_indices_t *)arg, sizeof(indices),
-EFAULT);
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("mga_indices called without lock held\n");
return -EINVAL;
}
DRM_DEBUG("mga_indices\n");
buf = dma->buflist[ indices.idx ];
buf_priv = buf->dev_private;
buf_priv->discard = indices.discard;
if (!mgaVerifyState(dev_priv)) {
if (indices.discard) {
if(buf_priv->dispatched == 1) AGEBUF(dev_priv, buf_priv);
buf_priv->dispatched = 0;
mga_freelist_put(dev, buf);
}
return -EINVAL;
}
mga_dma_dispatch_indices(dev, buf, indices.start, indices.end);
PRIMUPDATE(dev_priv);
mga_flush_write_combine();
mga_dma_schedule(dev, 1);
return 0;
}
static int mga_dma_get_buffers(drm_device_t *dev, drm_dma_t *d)
{
int i;
drm_buf_t *buf;
DRM_DEBUG("%s\n", __FUNCTION__);
for (i = d->granted_count; i < d->request_count; i++) {
buf = mga_freelist_get(dev);
@ -866,12 +980,9 @@ int mga_dma(struct inode *inode, struct file *filp, unsigned int cmd,
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_device_dma_t *dma = dev->dma;
drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private;
drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
__volatile__ unsigned int *status =
(__volatile__ unsigned int *)dev_priv->status_page;
int retcode = 0;
drm_dma_t d;
DRM_DEBUG("%s\n", __FUNCTION__);
copy_from_user_ret(&d, (drm_dma_t *)arg, sizeof(d), -EFAULT);
DRM_DEBUG("%d %d: %d send, %d req\n",
@ -907,6 +1018,5 @@ int mga_dma(struct inode *inode, struct file *filp, unsigned int cmd,
DRM_DEBUG("%d returning, granted = %d\n",
current->pid, d.granted_count);
copy_to_user_ret((drm_dma_t *)arg, &d, sizeof(d), -EFAULT);
sarea_priv->last_dispatch = status[1];
return retcode;
}

5
shared-core/drm.h
View File

@ -341,13 +341,16 @@ typedef struct drm_agp_info {
#define DRM_IOCTL_MGA_ILOAD DRM_IOW( 0x43, drm_mga_iload_t)
#define DRM_IOCTL_MGA_VERTEX DRM_IOW( 0x44, drm_mga_vertex_t)
#define DRM_IOCTL_MGA_FLUSH DRM_IOW( 0x45, drm_lock_t )
#define DRM_IOCTL_MGA_INDICES DRM_IOW( 0x46, drm_mga_indices_t)
/* I810 specific ioctls */
#define DRM_IOCTL_I810_INIT DRM_IOW( 0x40, drm_i810_init_t)
#define DRM_IOCTL_I810_VERTEX DRM_IOW( 0x41, drm_i810_vertex_t)
#define DRM_IOCTL_I810_DMA DRM_IOW( 0x42, drm_i810_general_t)
#define DRM_IOCTL_I810_CLEAR DRM_IOW( 0x42, drm_i810_clear_t)
#define DRM_IOCTL_I810_FLUSH DRM_IO ( 0x43)
#define DRM_IOCTL_I810_GETAGE DRM_IO ( 0x44)
#define DRM_IOCTL_I810_GETBUF DRM_IOW( 0x45, drm_i810_dma_t)
#define DRM_IOCTL_I810_SWAP DRM_IO ( 0x46)
/* Rage 128 specific ioctls */
#define DRM_IOCTL_R128_INIT DRM_IOW( 0x40, drm_r128_init_t)

5
shared/drm.h
View File

@ -341,13 +341,16 @@ typedef struct drm_agp_info {
#define DRM_IOCTL_MGA_ILOAD DRM_IOW( 0x43, drm_mga_iload_t)
#define DRM_IOCTL_MGA_VERTEX DRM_IOW( 0x44, drm_mga_vertex_t)
#define DRM_IOCTL_MGA_FLUSH DRM_IOW( 0x45, drm_lock_t )
#define DRM_IOCTL_MGA_INDICES DRM_IOW( 0x46, drm_mga_indices_t)
/* I810 specific ioctls */
#define DRM_IOCTL_I810_INIT DRM_IOW( 0x40, drm_i810_init_t)
#define DRM_IOCTL_I810_VERTEX DRM_IOW( 0x41, drm_i810_vertex_t)
#define DRM_IOCTL_I810_DMA DRM_IOW( 0x42, drm_i810_general_t)
#define DRM_IOCTL_I810_CLEAR DRM_IOW( 0x42, drm_i810_clear_t)
#define DRM_IOCTL_I810_FLUSH DRM_IO ( 0x43)
#define DRM_IOCTL_I810_GETAGE DRM_IO ( 0x44)
#define DRM_IOCTL_I810_GETBUF DRM_IOW( 0x45, drm_i810_dma_t)
#define DRM_IOCTL_I810_SWAP DRM_IO ( 0x46)
/* Rage 128 specific ioctls */
#define DRM_IOCTL_R128_INIT DRM_IOW( 0x40, drm_r128_init_t)