diff options
| author | Peter Maucher <bellosilicio@gmail.com> | 2022-12-01 16:38:20 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-12-01 15:21:53 -0500 |
| commit | 570513ba3a488bff48f65a22384aaf2643d766ad (patch) | |
| tree | 6d88f3bf471e11c5d19d7d7551aeaafe5d93df78 /drivers/gpu/drm/amd | |
| parent | 2cffcb667921559042fe3025d6d40d2a54f78922 (diff) | |
drm/amdgpu: improve GART and GTT documentation
Document difference between amdgpu.gartsize and amdgpu.gttsize
module parameters, as initially explained by Alex Deucher here:
https://lists.freedesktop.org/archives/dri-devel/2022-October/375358.html
v2: minor cleanups (Alex)
Signed-off-by: Peter Maucher <bellosilicio@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 5bd4e2dacee5..7383272c6a3a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -231,16 +231,18 @@ module_param_named(vis_vramlimit, amdgpu_vis_vram_limit, int, 0444); /** * DOC: gartsize (uint) - * Restrict the size of GART in Mib (32, 64, etc.) for testing. The default is -1 (The size depends on asic). + * Restrict the size of GART (for kernel use) in Mib (32, 64, etc.) for testing. + * The default is -1 (The size depends on asic). */ -MODULE_PARM_DESC(gartsize, "Size of GART to setup in megabytes (32, 64, etc., -1=auto)"); +MODULE_PARM_DESC(gartsize, "Size of kernel GART to setup in megabytes (32, 64, etc., -1=auto)"); module_param_named(gartsize, amdgpu_gart_size, uint, 0600); /** * DOC: gttsize (int) - * Restrict the size of GTT domain in MiB for testing. The default is -1 (Use 1/2 RAM, minimum value is 3GB). + * Restrict the size of GTT domain (for userspace use) in MiB for testing. + * The default is -1 (Use 1/2 RAM, minimum value is 3GB). */ -MODULE_PARM_DESC(gttsize, "Size of the GTT domain in megabytes (-1 = auto)"); +MODULE_PARM_DESC(gttsize, "Size of the GTT userspace domain in megabytes (-1 = auto)"); module_param_named(gttsize, amdgpu_gtt_size, int, 0600); /** |