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drm/amdgpu: Use GTT for dumb buffer if sg display enabled (v2)

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When vram size <= THRESHOLD(256M) lets use GTT for dumb buffer
allocation. As SG will be enabled with vram size <= 256M
scan out will not be an issue.

v2: Use amdgpu_display_supported_domains to get supported domain.

Signed-off-by: Deepak Sharma <Deepak.Sharma@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Deepak Sharma 2018-05-22 15:31:23 -07:00 committed by Alex Deucher
parent 7bee0572e3
commit bda31a24dc
1 changed files with 8 additions and 2 deletions
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10
drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
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@ -30,6 +30,7 @@
#include <drm/drmP.h>
#include <drm/amdgpu_drm.h>
#include "amdgpu.h"
#include "amdgpu_display.h"
void amdgpu_gem_object_free(struct drm_gem_object *gobj)
{
@ -749,15 +750,20 @@ int amdgpu_mode_dumb_create(struct drm_file *file_priv,
struct amdgpu_device *adev = dev->dev_private;
struct drm_gem_object *gobj;
uint32_t handle;
u32 domain = amdgpu_display_supported_domains(adev);
int r;
args->pitch = amdgpu_align_pitch(adev, args->width,
DIV_ROUND_UP(args->bpp, 8), 0);
args->size = (u64)args->pitch * args->height;
args->size = ALIGN(args->size, PAGE_SIZE);
if (domain == (AMDGPU_GEM_DOMAIN_VRAM | AMDGPU_GEM_DOMAIN_GTT)) {
domain = AMDGPU_GEM_DOMAIN_VRAM;
if (adev->gmc.real_vram_size <= AMDGPU_SG_THRESHOLD)
domain = AMDGPU_GEM_DOMAIN_GTT;
}
r = amdgpu_gem_object_create(adev, args->size, 0,
AMDGPU_GEM_DOMAIN_VRAM,
r = amdgpu_gem_object_create(adev, args->size, 0, domain,
AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
false, NULL, &gobj);
if (r)