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drm/ttm: drop bus.size from bus placement.

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This is always calculated the same, and only used in a couple of places.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200811074658.58309-2-airlied@gmail.com
This commit is contained in:
Dave Airlie 2020-08-11 17:46:58 +10:00
parent 098754fe3c
commit ebb21aa188
4 changed files with 10 additions and 9 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
View File

@ -751,6 +751,7 @@ static int amdgpu_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_reso
{
struct amdgpu_device *adev = amdgpu_ttm_adev(bdev);
struct drm_mm_node *mm_node = mem->mm_node;
size_t bus_size = (size_t)mem->num_pages << PAGE_SHIFT;
switch (mem->mem_type) {
case TTM_PL_SYSTEM:
@ -761,7 +762,7 @@ static int amdgpu_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_reso
case TTM_PL_VRAM:
mem->bus.offset = mem->start << PAGE_SHIFT;
/* check if it's visible */
if ((mem->bus.offset + mem->bus.size) > adev->gmc.visible_vram_size)
if ((mem->bus.offset + bus_size) > adev->gmc.visible_vram_size)
return -EINVAL;
/* Only physically contiguous buffers apply. In a contiguous
* buffer, size of the first mm_node would match the number of

7
drivers/gpu/drm/radeon/radeon_ttm.c
View File

@ -362,6 +362,7 @@ memcpy:
static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_resource *mem)
{
struct radeon_device *rdev = radeon_get_rdev(bdev);
size_t bus_size = (size_t)mem->num_pages << PAGE_SHIFT;
switch (mem->mem_type) {
case TTM_PL_SYSTEM:
@ -380,7 +381,7 @@ static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_reso
case TTM_PL_VRAM:
mem->bus.offset = mem->start << PAGE_SHIFT;
/* check if it's visible */
if ((mem->bus.offset + mem->bus.size) > rdev->mc.visible_vram_size)
if ((mem->bus.offset + bus_size) > rdev->mc.visible_vram_size)
return -EINVAL;
mem->bus.base = rdev->mc.aper_base;
mem->bus.is_iomem = true;
@ -392,11 +393,11 @@ static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_reso
if (mem->placement & TTM_PL_FLAG_WC)
mem->bus.addr =
ioremap_wc(mem->bus.base + mem->bus.offset,
mem->bus.size);
bus_size);
else
mem->bus.addr =
ioremap(mem->bus.base + mem->bus.offset,
mem->bus.size);
bus_size);
if (!mem->bus.addr)
return -ENOMEM;

7
drivers/gpu/drm/ttm/ttm_bo_util.c
View File

@ -140,7 +140,6 @@ int ttm_mem_io_reserve(struct ttm_bo_device *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;
retry:
@ -214,12 +213,14 @@ static int ttm_resource_ioremap(struct ttm_bo_device *bdev,
if (mem->bus.addr) {
addr = mem->bus.addr;
} else {
size_t bus_size = (size_t)mem->num_pages << PAGE_SHIFT;
if (mem->placement & TTM_PL_FLAG_WC)
addr = ioremap_wc(mem->bus.base + mem->bus.offset,
mem->bus.size);
bus_size);
else
addr = ioremap(mem->bus.base + mem->bus.offset,
mem->bus.size);
bus_size);
if (!addr) {
(void) ttm_mem_io_lock(man, false);
ttm_mem_io_free(bdev, mem);

2
include/drm/ttm/ttm_resource.h
View File

@ -162,7 +162,6 @@ struct ttm_resource_manager {
* @addr: mapped virtual address
* @base: bus base address
* @is_iomem: is this io memory ?
* @size: size in byte
* @offset: offset from the base address
* @io_reserved_vm: The VM system has a refcount in @io_reserved_count
* @io_reserved_count: Refcounting the numbers of callers to ttm_mem_io_reserve
@ -172,7 +171,6 @@ struct ttm_resource_manager {
struct ttm_bus_placement {
void *addr;
phys_addr_t base;
unsigned long size;
unsigned long offset;
bool is_iomem;
bool io_reserved_vm;