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drm/radeon/kms: add support for new fault callback V7

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This add the support for the new fault callback and also the
infrastructure for supporting unmappable VRAM.

V2 validate BO with no_wait = true
V3 don't derefence bo->mem.mm_node as it's not NULL only for
   VRAM or GTT
V4 update to splitted no_wait ttm change
V5 update to new balanced io_mem_reserve/free change
V6 callback is responsible for iomapping memory
V7 move back iomapping to ttm

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Jerome Glisse 2010-04-09 14:39:24 +02:00 committed by Dave Airlie
parent 82c5da6bf8
commit 0a2d50e3a8
3 changed files with 72 additions and 7 deletions
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26
drivers/gpu/drm/radeon/radeon_object.c
View File

@ -498,11 +498,33 @@ void radeon_bo_move_notify(struct ttm_buffer_object *bo,
radeon_bo_check_tiling(rbo, 0, 1);
}
void radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo)
int radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo)
{
struct radeon_device *rdev;
struct radeon_bo *rbo;
unsigned long offset, size;
int r;
if (!radeon_ttm_bo_is_radeon_bo(bo))
return;
return 0;
rbo = container_of(bo, struct radeon_bo, tbo);
radeon_bo_check_tiling(rbo, 0, 0);
rdev = rbo->rdev;
if (bo->mem.mem_type == TTM_PL_VRAM) {
size = bo->mem.num_pages << PAGE_SHIFT;
offset = bo->mem.mm_node->start << PAGE_SHIFT;
if ((offset + size) > rdev->mc.visible_vram_size) {
/* hurrah the memory is not visible ! */
radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_VRAM);
rbo->placement.lpfn = rdev->mc.visible_vram_size >> PAGE_SHIFT;
r = ttm_bo_validate(bo, &rbo->placement, false, true, false);
if (unlikely(r != 0))
return r;
offset = bo->mem.mm_node->start << PAGE_SHIFT;
/* this should not happen */
if ((offset + size) > rdev->mc.visible_vram_size)
return -EINVAL;
}
}
return 0;
}

2
drivers/gpu/drm/radeon/radeon_object.h
View File

@ -168,6 +168,6 @@ extern int radeon_bo_check_tiling(struct radeon_bo *bo, bool has_moved,
bool force_drop);
extern void radeon_bo_move_notify(struct ttm_buffer_object *bo,
struct ttm_mem_reg *mem);
extern void radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo);
extern int radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo);
extern int radeon_bo_get_surface_reg(struct radeon_bo *bo);
#endif

51
drivers/gpu/drm/radeon/radeon_ttm.c
View File

@ -165,8 +165,7 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
man->io_size = rdev->mc.gtt_size;
man->io_addr = NULL;
if (!rdev->ddev->agp->cant_use_aperture)
man->flags = TTM_MEMTYPE_FLAG_NEEDS_IOREMAP |
TTM_MEMTYPE_FLAG_MAPPABLE;
man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
man->available_caching = TTM_PL_FLAG_UNCACHED |
TTM_PL_FLAG_WC;
man->default_caching = TTM_PL_FLAG_WC;
@ -182,7 +181,6 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
/* "On-card" video ram */
man->gpu_offset = rdev->mc.vram_start;
man->flags = TTM_MEMTYPE_FLAG_FIXED |
TTM_MEMTYPE_FLAG_NEEDS_IOREMAP |
TTM_MEMTYPE_FLAG_MAPPABLE;
man->available_caching = TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC;
man->default_caching = TTM_PL_FLAG_WC;
@ -437,10 +435,53 @@ static int radeon_bo_move(struct ttm_buffer_object *bo,
memcpy:
r = ttm_bo_move_memcpy(bo, evict, no_wait_reserve, no_wait_gpu, new_mem);
}
return r;
}
static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
{
struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
struct radeon_device *rdev = radeon_get_rdev(bdev);
mem->bus.addr = NULL;
mem->bus.offset = 0;
mem->bus.size = mem->num_pages << PAGE_SHIFT;
mem->bus.base = 0;
mem->bus.is_iomem = false;
if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
return -EINVAL;
switch (mem->mem_type) {
case TTM_PL_SYSTEM:
/* system memory */
return 0;
case TTM_PL_TT:
#if __OS_HAS_AGP
if (rdev->flags & RADEON_IS_AGP) {
/* RADEON_IS_AGP is set only if AGP is active */
mem->bus.offset = mem->mm_node->start << PAGE_SHIFT;
mem->bus.base = rdev->mc.agp_base;
mem->bus.is_iomem = true;
}
#endif
break;
case TTM_PL_VRAM:
mem->bus.offset = mem->mm_node->start << PAGE_SHIFT;
/* check if it's visible */
if ((mem->bus.offset + mem->bus.size) > rdev->mc.visible_vram_size)
return -EINVAL;
mem->bus.base = rdev->mc.aper_base;
mem->bus.is_iomem = true;
break;
default:
return -EINVAL;
}
return 0;
}
static void radeon_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
{
}
static int radeon_sync_obj_wait(void *sync_obj, void *sync_arg,
bool lazy, bool interruptible)
{
@ -481,6 +522,8 @@ static struct ttm_bo_driver radeon_bo_driver = {
.sync_obj_ref = &radeon_sync_obj_ref,
.move_notify = &radeon_bo_move_notify,
.fault_reserve_notify = &radeon_bo_fault_reserve_notify,
.io_mem_reserve = &radeon_ttm_io_mem_reserve,
.io_mem_free = &radeon_ttm_io_mem_free,
};
int radeon_ttm_init(struct radeon_device *rdev)