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Add i915_dispatch_gem_execbuffer (broken). 

This function submits a gem-based execbuffer to the ring.
It doesn't work yet.
main
Keith Packard 2008-05-05 10:51:49 -07:00
parent 166ff364fb
commit b6f173c430
4 changed files with 107 additions and 22 deletions
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4
linux-core/drmP.h
View File

@ -90,6 +90,10 @@
struct drm_device;
struct drm_file;
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
typedef unsigned long uintptr_t;
#endif
/* If you want the memory alloc debug functionality, change define below */
/* #define DEBUG_MEMORY */

115
linux-core/i915_gem.c
View File

@ -79,18 +79,24 @@ i915_gem_object_unbind(struct drm_gem_object *obj)
{
struct drm_i915_gem_object *obj_priv = obj->driver_private;
DRM_INFO ("%s:%d %p\n", __FUNCTION__, __LINE__, obj);
DRM_INFO ("gtt_space %p\n", obj_priv->gtt_space);
if (obj_priv->gtt_space == NULL)
return;
DRM_INFO ("agp_mem %p %ld pages\n", obj_priv->agp_mem, obj->size / PAGE_SIZE);
if (obj_priv->agp_mem != NULL) {
drm_unbind_agp(obj_priv->agp_mem);
drm_free_agp(obj_priv->agp_mem, obj->size / PAGE_SIZE);
}
DRM_INFO ("free_page_list\n");
i915_gem_object_free_page_list(obj);
DRM_INFO ("put_block\n");
drm_memrange_put_block(obj_priv->gtt_space);
obj_priv->gtt_space = NULL;
DRM_INFO ("done\n");
}
/**
@ -259,9 +265,18 @@ i915_gem_reloc_and_validate_object(struct drm_gem_object *obj,
static int
evict_callback(struct drm_memrange_node *node, void *data)
{
struct drm_gem_object *obj = node->private;
struct drm_i915_gem_object *obj_priv = obj->driver_private;
struct drm_gem_object *obj;
struct drm_i915_gem_object *obj_priv;
DRM_INFO ("evict node %p\n", node);
obj = node->private;
DRM_INFO ("evict obj %p\n", obj);
obj_priv = obj->driver_private;
DRM_INFO ("evict priv %p\n", obj_priv);
DRM_INFO ("pin_count %d\n", obj_priv->pin_count);
if (obj_priv->pin_count == 0)
i915_gem_object_unbind(obj);
@ -289,6 +304,58 @@ i915_gem_sync_and_evict(struct drm_device *dev)
return 0;
}
static int
i915_dispatch_gem_execbuffer (struct drm_device * dev,
struct drm_i915_gem_execbuffer * exec)
{
drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_clip_rect __user *boxes = (struct drm_clip_rect __user *) (uintptr_t) exec->cliprects_ptr;
int nbox = exec->num_cliprects;
int i = 0, count;
RING_LOCALS;
if ((exec->batch_start_offset | exec->batch_len) & 0x7) {
DRM_ERROR("alignment\n");
return -EINVAL;
}
i915_kernel_lost_context(dev);
count = nbox ? nbox : 1;
for (i = 0; i < count; i++) {
if (i < nbox) {
int ret = i915_emit_box(dev, boxes, i,
exec->DR1, exec->DR4);
if (ret)
return ret;
}
if (dev_priv->use_mi_batchbuffer_start) {
BEGIN_LP_RING(2);
if (IS_I965G(dev)) {
OUT_RING(MI_BATCH_BUFFER_START | (2 << 6) | MI_BATCH_NON_SECURE_I965);
OUT_RING(exec->batch_start_offset);
} else {
OUT_RING(MI_BATCH_BUFFER_START | (2 << 6));
OUT_RING(exec->batch_start_offset | MI_BATCH_NON_SECURE);
}
ADVANCE_LP_RING();
} else {
BEGIN_LP_RING(4);
OUT_RING(MI_BATCH_BUFFER);
OUT_RING(exec->batch_start_offset | MI_BATCH_NON_SECURE);
OUT_RING(exec->batch_start_offset + exec->batch_len - 4);
OUT_RING(0);
ADVANCE_LP_RING();
}
}
/* XXX breadcrumb */
return 0;
}
int
i915_gem_execbuffer(struct drm_device *dev, void *data,
struct drm_file *file_priv)
@ -300,39 +367,45 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
LOCK_TEST_WITH_RETURN(dev, file_priv);
DRM_INFO ("buffers_ptr %d buffer_count %d\n",
(int) args->buffers_ptr, args->buffer_count);
i915_kernel_lost_context(dev);
DRM_INFO ("%s:%d\n", __FUNCTION__, __LINE__);
/* Big hammer: flush and idle the hardware so we can map things in/out.
*/
ret = i915_gem_sync_and_evict(dev);
if (ret != 0)
if (ret != 0) {
DRM_ERROR ("i915_gem_sync_and_evict failed %d\n", ret);
return ret;
}
DRM_INFO ("%s:%d\n", __FUNCTION__, __LINE__);
/* Copy in the validate list from userland */
validate_list = drm_calloc(sizeof(*validate_list), args->buffer_count,
DRM_MEM_DRIVER);
object_list = drm_calloc(sizeof(*object_list), args->buffer_count,
DRM_MEM_DRIVER);
if (validate_list == NULL || object_list == NULL) {
DRM_ERROR ("Failed to allocate validate or object list for %d buffers\n",
args->buffer_count);
ret = -ENOMEM;
goto err;
}
DRM_INFO ("%s:%d\n", __FUNCTION__, __LINE__);
ret = copy_from_user(validate_list,
(struct drm_i915_relocation_entry __user*)(uintptr_t)
args->buffers_ptr,
sizeof(*validate_list) * args->buffer_count);
if (ret != 0)
if (ret != 0) {
DRM_ERROR ("copy %d validate entries failed %d\n", args->buffer_count, ret);
goto err;
}
DRM_INFO ("%s:%d\n", __FUNCTION__, __LINE__);
/* Look up object handles and perform the relocations */
for (i = 0; i < args->buffer_count; i++) {
object_list[i] = drm_gem_object_lookup(dev, file_priv,
validate_list[i].buffer_handle);
if (object_list[i] == NULL) {
DRM_ERROR ("Invalid object handle %d at index %d\n",
validate_list[i].buffer_handle, i);
ret = -EINVAL;
goto err;
}
@ -342,8 +415,13 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
}
/* Exec the batchbuffer */
ret = i915_dispatch_gem_execbuffer (dev, args);
if (ret)
{
DRM_ERROR ("dispatch failed %d\n", ret);
goto err;
}
DRM_INFO ("%s:%d\n", __FUNCTION__, __LINE__);
/* Copy the new buffer offsets back to the user's validate list. */
for (i = 0; i < args->buffer_count; i++) {
struct drm_i915_gem_object *obj_priv =
@ -351,29 +429,28 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
validate_list[i].buffer_offset = obj_priv->gtt_offset;
}
DRM_INFO ("%s:%d\n", __FUNCTION__, __LINE__);
ret = copy_to_user(validate_list,
(struct drm_i915_relocation_entry __user*)(uintptr_t)
args->buffers_ptr,
sizeof(*validate_list) * args->buffer_count);
ret = copy_to_user((struct drm_i915_relocation_entry __user*)(uintptr_t)
args->buffers_ptr,
validate_list,
sizeof(*validate_list) * args->buffer_count);
if (ret)
DRM_ERROR ("failed to copy %d validate entries back to user (%d)\n",
args->buffer_count, ret);
DRM_INFO ("%s:%d\n", __FUNCTION__, __LINE__);
/* Clean up and return */
ret = i915_gem_sync_and_evict(dev);
DRM_INFO ("%s:%d\n", __FUNCTION__, __LINE__);
if (ret)
DRM_ERROR ("failed to sync/evict buffers %d\n", ret);
err:
if (object_list != NULL) {
for (i = 0; i < args->buffer_count; i++)
drm_gem_object_unreference(object_list[i]);
}
DRM_INFO ("%s:%d\n", __FUNCTION__, __LINE__);
drm_free(object_list, sizeof(*object_list) * args->buffer_count,
DRM_MEM_DRIVER);
drm_free(validate_list, sizeof(*validate_list) * args->buffer_count,
DRM_MEM_DRIVER);
DRM_INFO ("%s:%d\n", __FUNCTION__, __LINE__);
return ret;
}

6
shared-core/i915_dma.c
View File

@ -458,9 +458,9 @@ static int i915_emit_cmds(struct drm_device *dev, int __user *buffer,
return 0;
}
static int i915_emit_box(struct drm_device * dev,
struct drm_clip_rect __user * boxes,
int i, int DR1, int DR4)
int i915_emit_box(struct drm_device * dev,
struct drm_clip_rect __user * boxes,
int i, int DR1, int DR4)
{
drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_clip_rect box;

4
shared-core/i915_drv.h
View File

@ -299,6 +299,10 @@ extern int i915_dispatch_batchbuffer(struct drm_device * dev,
drm_i915_batchbuffer_t * batch);
extern int i915_quiescent(struct drm_device *dev);
int i915_emit_box(struct drm_device * dev,
struct drm_clip_rect __user * boxes,
int i, int DR1, int DR4);
/* i915_irq.c */
extern int i915_irq_emit(struct drm_device *dev, void *data,
struct drm_file *file_priv);