From 218b5dcde4d30e071eec4201a36af665ccfa7e1c Mon Sep 17 00:00:00 2001 From: John Brooks Date: Tue, 27 Jun 2017 22:33:17 -0400 Subject: drm/amdgpu: Add vis_vramlimit module parameter MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Allow specifying a limit on visible VRAM via a module parameter. This is helpful for testing performance under visible VRAM pressure. v2: Add cast to 64-bit (Christian König) Signed-off-by: John Brooks Reviewed-by: Michel Dänzer Reviewed-by: Christian König Signed-off-by: Michel Dänzer Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index ed760f477542..3c83fe6c5db8 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -74,6 +74,7 @@ #define KMS_DRIVER_PATCHLEVEL 0 int amdgpu_vram_limit = 0; +int amdgpu_vis_vram_limit = 0; unsigned amdgpu_gart_size = 256; int amdgpu_gtt_size = -1; /* auto */ int amdgpu_moverate = -1; /* auto */ @@ -121,6 +122,9 @@ int amdgpu_lbpw = -1; MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes"); module_param_named(vramlimit, amdgpu_vram_limit, int, 0600); +MODULE_PARM_DESC(vis_vramlimit, "Restrict visible VRAM for testing, in megabytes"); +module_param_named(vis_vramlimit, amdgpu_vis_vram_limit, int, 0444); + MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32, 64, etc.)"); module_param_named(gartsize, amdgpu_gart_size, uint, 0600); -- cgit