leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm/amdgpu: add new gttsize module parameter v2

Browse Source 
This allows setting the gtt size independent of the gart size.

v2: fix copy and paste typo

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2017-07-07 13:17:45 +02:00 committed by Alex Deucher
parent bb84284e10
commit 36d3837266
4 changed files with 21 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/amd/amdgpu/amdgpu.h
View File

@ -76,6 +76,7 @@
extern int amdgpu_modeset;
extern int amdgpu_vram_limit;
extern int amdgpu_gart_size;
extern int amdgpu_gtt_size;
extern int amdgpu_moverate;
extern int amdgpu_benchmarking;
extern int amdgpu_testing;

7
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View File

@ -1141,6 +1141,13 @@ static void amdgpu_check_arguments(struct amdgpu_device *adev)
}
}
if (amdgpu_gtt_size != -1 && amdgpu_gtt_size < 32) {
/* gtt size must be greater or equal to 32M */
dev_warn(adev->dev, "gtt size (%d) too small\n",
amdgpu_gtt_size);
amdgpu_gtt_size = -1;
}
amdgpu_check_vm_size(adev);
amdgpu_check_block_size(adev);

4
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
View File

@ -75,6 +75,7 @@
int amdgpu_vram_limit = 0;
int amdgpu_gart_size = -1; /* auto */
int amdgpu_gtt_size = -1; /* auto */
int amdgpu_moverate = -1; /* auto */
int amdgpu_benchmarking = 0;
int amdgpu_testing = 0;
@ -123,6 +124,9 @@ module_param_named(vramlimit, amdgpu_vram_limit, int, 0600);
MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32, 64, etc., -1 = auto)");
module_param_named(gartsize, amdgpu_gart_size, int, 0600);
MODULE_PARM_DESC(gttsize, "Size of the GTT domain in megabytes (-1 = auto)");
module_param_named(gttsize, amdgpu_gtt_size, int, 0600);
MODULE_PARM_DESC(moverate, "Maximum buffer migration rate in MB/s. (32, 64, etc., -1=auto, 0=1=disabled)");
module_param_named(moverate, amdgpu_moverate, int, 0600);

12
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
View File

@ -1097,6 +1097,7 @@ static struct ttm_bo_driver amdgpu_bo_driver = {
int amdgpu_ttm_init(struct amdgpu_device *adev)
{
uint64_t gtt_size;
int r;
r = amdgpu_ttm_global_init(adev);
@ -1143,14 +1144,19 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
}
DRM_INFO("amdgpu: %uM of VRAM memory ready\n",
(unsigned) (adev->mc.real_vram_size / (1024 * 1024)));
r = ttm_bo_init_mm(&adev->mman.bdev, TTM_PL_TT,
adev->mc.gart_size >> PAGE_SHIFT);
if (amdgpu_gtt_size == -1)
gtt_size = max((AMDGPU_DEFAULT_GTT_SIZE_MB << 20),
adev->mc.mc_vram_size);
else
gtt_size = (uint64_t)amdgpu_gtt_size << 20;
r = ttm_bo_init_mm(&adev->mman.bdev, TTM_PL_TT, gtt_size >> PAGE_SHIFT);
if (r) {
DRM_ERROR("Failed initializing GTT heap.\n");
return r;
}
DRM_INFO("amdgpu: %uM of GTT memory ready.\n",
(unsigned)(adev->mc.gart_size / (1024 * 1024)));
(unsigned)(gtt_size / (1024 * 1024)));
adev->gds.mem.total_size = adev->gds.mem.total_size << AMDGPU_GDS_SHIFT;
adev->gds.mem.gfx_partition_size = adev->gds.mem.gfx_partition_size << AMDGPU_GDS_SHIFT;