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drm/amdgpu: allow zero as vram limit

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This allows testing the driver without any VRAM.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Luben Tuikov <luben.tuikov@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2022-02-01 16:50:49 +01:00 committed by Alex Deucher
parent da2f992091
commit 0b04ea391c
3 changed files with 3 additions and 3 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu.h
View File

@ -150,7 +150,7 @@ struct amdgpu_watchdog_timer
* Modules parameters.
*/
extern int amdgpu_modeset;
extern int amdgpu_vram_limit;
extern unsigned int amdgpu_vram_limit;
extern int amdgpu_vis_vram_limit;
extern int amdgpu_gart_size;
extern int amdgpu_gtt_size;

2
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
View File

@ -113,7 +113,7 @@
#define KMS_DRIVER_MINOR 50
#define KMS_DRIVER_PATCHLEVEL 0
int amdgpu_vram_limit;
unsigned int amdgpu_vram_limit = UINT_MAX;
int amdgpu_vis_vram_limit;
int amdgpu_gart_size = -1; /* auto */
int amdgpu_gtt_size = -1; /* auto */

2
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
View File

@ -206,7 +206,7 @@ void amdgpu_gmc_vram_location(struct amdgpu_device *adev, struct amdgpu_gmc *mc,
mc->vram_start = base;
mc->vram_end = mc->vram_start + mc->mc_vram_size - 1;
if (limit && limit < mc->real_vram_size)
if (limit < mc->real_vram_size)
mc->real_vram_size = limit;
if (vis_limit && vis_limit < mc->visible_vram_size)