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drm/radeon: Fix vram_size/visible values in DRM_RADEON_GEM_INFO ioctl

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vram_size is supposed to be the total amount of VRAM that can be used by
userspace, which corresponds to the TTM VRAM manager size (which is
normally the full amount of VRAM, but can be just the visible VRAM when
DMA can't be used for BO migration for some reason).

The above was incorrectly used for vram_visible before, resulting in
generally too large values being reported.

Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Michel Dänzer 2017-01-30 12:06:35 +09:00 committed by Alex Deucher
parent 57bcd0a636
commit 51964e9e12
2 changed files with 4 additions and 3 deletions
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3
drivers/gpu/drm/radeon/radeon_drv.c
View File

@ -97,9 +97,10 @@
* 2.46.0 - Add PFP_SYNC_ME support on evergreen
* 2.47.0 - Add UVD_NO_OP register support
* 2.48.0 - TA_CS_BC_BASE_ADDR allowed on SI
* 2.49.0 - DRM_RADEON_GEM_INFO ioctl returns correct vram_size/visible values
*/
#define KMS_DRIVER_MAJOR 2
#define KMS_DRIVER_MINOR 48
#define KMS_DRIVER_MINOR 49
#define KMS_DRIVER_PATCHLEVEL 0
int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags);
int radeon_driver_unload_kms(struct drm_device *dev);

4
drivers/gpu/drm/radeon/radeon_gem.c
View File

@ -220,8 +220,8 @@ int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
man = &rdev->mman.bdev.man[TTM_PL_VRAM];
args->vram_size = rdev->mc.real_vram_size;
args->vram_visible = (u64)man->size << PAGE_SHIFT;
args->vram_size = (u64)man->size << PAGE_SHIFT;
args->vram_visible = rdev->mc.visible_vram_size;
args->vram_visible -= rdev->vram_pin_size;
args->gart_size = rdev->mc.gtt_size;
args->gart_size -= rdev->gart_pin_size;