drm/linux-core/xgi_drv.c

365 lines
9.3 KiB
C

/****************************************************************************
* Copyright (C) 2003-2006 by XGI Technology, Taiwan.
* *
* All Rights Reserved. *
* *
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation on the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
* *
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NON-INFRINGEMENT. IN NO EVENT SHALL XGI AND/OR
* ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
***************************************************************************/
#include "drmP.h"
#include "drm.h"
#include "xgi_drv.h"
#include "xgi_regs.h"
#include "xgi_misc.h"
#include "xgi_cmdlist.h"
#include "drm_pciids.h"
static struct pci_device_id pciidlist[] = {
xgi_PCI_IDS
};
static int xgi_bootstrap(DRM_IOCTL_ARGS);
static drm_ioctl_desc_t xgi_ioctls[] = {
[DRM_IOCTL_NR(DRM_XGI_BOOTSTRAP)] = {xgi_bootstrap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
[DRM_IOCTL_NR(DRM_XGI_FB_ALLOC)] = {xgi_fb_alloc_ioctl, DRM_AUTH},
[DRM_IOCTL_NR(DRM_XGI_FB_FREE)] = {xgi_fb_free_ioctl, DRM_AUTH},
[DRM_IOCTL_NR(DRM_XGI_PCIE_ALLOC)] = {xgi_pcie_alloc_ioctl, DRM_AUTH},
[DRM_IOCTL_NR(DRM_XGI_PCIE_FREE)] = {xgi_pcie_free_ioctl, DRM_AUTH},
[DRM_IOCTL_NR(DRM_XGI_GE_RESET)] = {xgi_ge_reset_ioctl, DRM_AUTH},
[DRM_IOCTL_NR(DRM_XGI_DUMP_REGISTER)] = {xgi_dump_register_ioctl, DRM_AUTH},
[DRM_IOCTL_NR(DRM_XGI_DEBUG_INFO)] = {xgi_restore_registers_ioctl, DRM_AUTH},
[DRM_IOCTL_NR(DRM_XGI_SUBMIT_CMDLIST)] = {xgi_submit_cmdlist_ioctl, DRM_AUTH},
[DRM_IOCTL_NR(DRM_XGI_TEST_RWINKERNEL)] = {xgi_test_rwinkernel_ioctl, DRM_AUTH},
[DRM_IOCTL_NR(DRM_XGI_STATE_CHANGE)] = {xgi_state_change_ioctl, DRM_AUTH|DRM_MASTER},
};
static const int xgi_max_ioctl = DRM_ARRAY_SIZE(xgi_ioctls);
static int probe(struct pci_dev *pdev, const struct pci_device_id *ent);
static int xgi_driver_load(struct drm_device *dev, unsigned long flags);
static int xgi_driver_unload(struct drm_device *dev);
static void xgi_driver_preclose(struct drm_device * dev, DRMFILE filp);
static void xgi_driver_lastclose(drm_device_t * dev);
static irqreturn_t xgi_kern_isr(DRM_IRQ_ARGS);
static struct drm_driver driver = {
.driver_features =
DRIVER_PCI_DMA | DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ |
DRIVER_IRQ_SHARED | DRIVER_SG,
.dev_priv_size = sizeof(struct xgi_info),
.load = xgi_driver_load,
.unload = xgi_driver_unload,
.preclose = xgi_driver_preclose,
.lastclose = xgi_driver_lastclose,
.dma_quiescent = NULL,
.irq_preinstall = NULL,
.irq_postinstall = NULL,
.irq_uninstall = NULL,
.irq_handler = xgi_kern_isr,
.reclaim_buffers = drm_core_reclaim_buffers,
.get_map_ofs = drm_core_get_map_ofs,
.get_reg_ofs = drm_core_get_reg_ofs,
.ioctls = xgi_ioctls,
.dma_ioctl = NULL,
.fops = {
.owner = THIS_MODULE,
.open = drm_open,
.release = drm_release,
.ioctl = drm_ioctl,
.mmap = drm_mmap,
.poll = drm_poll,
.fasync = drm_fasync,
},
.pci_driver = {
.name = DRIVER_NAME,
.id_table = pciidlist,
.probe = probe,
.remove = __devexit_p(drm_cleanup_pci),
},
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.date = DRIVER_DATE,
.major = DRIVER_MAJOR,
.minor = DRIVER_MINOR,
.patchlevel = DRIVER_PATCHLEVEL,
};
static int probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
return drm_get_dev(pdev, ent, &driver);
}
static int __init xgi_init(void)
{
driver.num_ioctls = xgi_max_ioctl;
return drm_init(&driver, pciidlist);
}
static void __exit xgi_exit(void)
{
drm_exit(&driver);
}
module_init(xgi_init);
module_exit(xgi_exit);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL and additional rights");
void xgi_kern_isr_bh(struct drm_device *dev);
int xgi_bootstrap(DRM_IOCTL_ARGS)
{
DRM_DEVICE;
struct xgi_info *info = dev->dev_private;
struct xgi_bootstrap bs;
struct drm_map_list *maplist;
int err;
DRM_COPY_FROM_USER_IOCTL(bs, (struct xgi_bootstrap __user *) data,
sizeof(bs));
if (info->mmio_map == NULL) {
err = drm_addmap(dev, info->mmio.base, info->mmio.size,
_DRM_REGISTERS, _DRM_KERNEL,
&info->mmio_map);
if (err) {
DRM_ERROR("Unable to map MMIO region: %d\n", err);
return err;
}
xgi_enable_mmio(info);
}
info->fb.size = IN3CFB(info->mmio_map, 0x54) * 8 * 1024 * 1024;
DRM_INFO("fb base: 0x%lx, size: 0x%x (probed)\n",
(unsigned long) info->fb.base, info->fb.size);
if ((info->fb.base == 0) || (info->fb.size == 0)) {
DRM_ERROR("framebuffer appears to be wrong: 0x%lx 0x%x\n",
(unsigned long) info->fb.base, info->fb.size);
return DRM_ERR(EINVAL);
}
/* Init the resource manager */
if (!info->fb_heap.initialized) {
err = xgi_fb_heap_init(info);
if (err) {
DRM_ERROR("Unable to initialize FB heap.\n");
return err;
}
}
info->pcie.size = bs.gart.size;
/* Init the resource manager */
if (!info->pcie_heap.initialized) {
err = xgi_pcie_heap_init(info);
if (err) {
DRM_ERROR("Unable to initialize GART heap.\n");
return err;
}
/* Alloc 1M bytes for cmdbuffer which is flush2D batch array */
err = xgi_cmdlist_initialize(info, 0x100000);
if (err) {
DRM_ERROR("xgi_cmdlist_initialize() failed\n");
return err;
}
}
if (info->pcie_map == NULL) {
err = drm_addmap(info->dev, 0, info->pcie.size,
_DRM_SCATTER_GATHER, _DRM_LOCKED,
& info->pcie_map);
if (err) {
DRM_ERROR("Could not add map for GART backing "
"store.\n");
return err;
}
}
maplist = drm_find_matching_map(dev, info->pcie_map);
if (maplist == NULL) {
DRM_ERROR("Could not find GART backing store map.\n");
return DRM_ERR(EINVAL);
}
bs.gart = *info->pcie_map;
bs.gart.handle = (void *)(unsigned long) maplist->user_token;
DRM_COPY_TO_USER_IOCTL((struct xgi_bootstrap __user *) data,
bs, sizeof(bs));
return 0;
}
void xgi_driver_preclose(struct drm_device * dev, DRMFILE filp)
{
struct xgi_info * info = dev->dev_private;
xgi_pcie_free_all(info, filp);
xgi_fb_free_all(info, filp);
}
void xgi_driver_lastclose(drm_device_t * dev)
{
struct xgi_info * info = dev->dev_private;
if (info != NULL) {
/* The core DRM lastclose routine will destroy all of our
* mappings for us. NULL out the pointers here so that
* xgi_bootstrap can do the right thing.
*/
info->pcie_map = NULL;
info->mmio_map = NULL;
info->fb_map = NULL;
xgi_cmdlist_cleanup(info);
if (info->fb_heap.initialized) {
xgi_mem_heap_cleanup(&info->fb_heap);
}
if (info->pcie_heap.initialized) {
xgi_mem_heap_cleanup(&info->pcie_heap);
xgi_pcie_lut_cleanup(info);
}
}
}
/*
* driver receives an interrupt if someone waiting, then hand it off.
*/
irqreturn_t xgi_kern_isr(DRM_IRQ_ARGS)
{
struct drm_device *dev = (struct drm_device *) arg;
// struct xgi_info *info = dev->dev_private;
u32 need_to_run_bottom_half = 0;
//DRM_INFO("xgi_kern_isr \n");
//xgi_dvi_irq_handler(info);
if (need_to_run_bottom_half) {
drm_locked_tasklet(dev, xgi_kern_isr_bh);
}
return IRQ_HANDLED;
}
void xgi_kern_isr_bh(struct drm_device *dev)
{
struct xgi_info *info = dev->dev_private;
DRM_INFO("xgi_kern_isr_bh \n");
//xgi_dvi_irq_handler(info);
}
int xgi_driver_load(struct drm_device *dev, unsigned long flags)
{
struct xgi_info *info = drm_alloc(sizeof(*info), DRM_MEM_DRIVER);
if (!info)
return DRM_ERR(ENOMEM);
(void) memset(info, 0, sizeof(*info));
dev->dev_private = info;
info->dev = dev;
sema_init(&info->fb_sem, 1);
sema_init(&info->pcie_sem, 1);
info->mmio.base = drm_get_resource_start(dev, 1);
info->mmio.size = drm_get_resource_len(dev, 1);
DRM_INFO("mmio base: 0x%lx, size: 0x%x\n",
(unsigned long) info->mmio.base, info->mmio.size);
if ((info->mmio.base == 0) || (info->mmio.size == 0)) {
DRM_ERROR("mmio appears to be wrong: 0x%lx 0x%x\n",
(unsigned long) info->mmio.base, info->mmio.size);
return DRM_ERR(EINVAL);
}
info->fb.base = drm_get_resource_start(dev, 0);
info->fb.size = drm_get_resource_len(dev, 0);
DRM_INFO("fb base: 0x%lx, size: 0x%x\n",
(unsigned long) info->fb.base, info->fb.size);
xgi_mem_block_cache = kmem_cache_create("xgi_mem_block",
sizeof(struct xgi_mem_block),
0,
SLAB_HWCACHE_ALIGN,
NULL, NULL);
if (xgi_mem_block_cache == NULL) {
return DRM_ERR(ENOMEM);
}
return 0;
}
int xgi_driver_unload(struct drm_device *dev)
{
struct xgi_info * info = dev->dev_private;
if (xgi_mem_block_cache) {
kmem_cache_destroy(xgi_mem_block_cache);
xgi_mem_block_cache = NULL;
}
drm_free(info, sizeof(*info), DRM_MEM_DRIVER);
dev->dev_private = NULL;
return 0;
}