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| author | Emily Deng <Emily.Deng@amd.com> | 2016-08-08 11:37:29 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-08-08 14:33:28 -0400 |
| commit | e443059d0f41fcc07f0fb6b3b8ae96dc3d2364c7 (patch) | |
| tree | 9067e2457d87310225091a2db3536b126c60a902 /drivers | |
| parent | e9ed3a67cd1bfd8d0d0dc4968a36f6ea4db2d45a (diff) | |
| download | linux-stable-e443059d0f41fcc07f0fb6b3b8ae96dc3d2364c7.tar.gz linux-stable-e443059d0f41fcc07f0fb6b3b8ae96dc3d2364c7.tar.bz2 linux-stable-e443059d0f41fcc07f0fb6b3b8ae96dc3d2364c7.zip | |
drm/amdgpu: Define one variable for virtual display.
For virtual display feature, define on variable in amdgpu.ko. When want to
enable virtual display feature, need set the option "amdgpu.virtual_display=1".
And then disable vga render and crtc if have DCE engine.
Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 4 |
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 12112cc65dae..54f71565e6cc 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -92,6 +92,7 @@ extern unsigned amdgpu_cg_mask; extern unsigned amdgpu_pg_mask; extern char *amdgpu_disable_cu; extern int amdgpu_sclk_deep_sleep_en; +extern int amdgpu_virtual_display; #define AMDGPU_WAIT_IDLE_TIMEOUT_IN_MS 3000 #define AMDGPU_MAX_USEC_TIMEOUT 100000 /* 100 ms */ diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 44fda31c75d2..421dbbfd5e1b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -90,6 +90,7 @@ unsigned amdgpu_pcie_lane_cap = 0; unsigned amdgpu_cg_mask = 0xffffffff; unsigned amdgpu_pg_mask = 0xffffffff; char *amdgpu_disable_cu = NULL; +int amdgpu_virtual_display = 0; MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes"); module_param_named(vramlimit, amdgpu_vram_limit, int, 0600); @@ -189,6 +190,9 @@ module_param_named(pg_mask, amdgpu_pg_mask, uint, 0444); MODULE_PARM_DESC(disable_cu, "Disable CUs (se.sh.cu,...)"); module_param_named(disable_cu, amdgpu_disable_cu, charp, 0444); +MODULE_PARM_DESC(virtual_display, "enable virtual display (0 = disable virtual display)"); +module_param_named(virtual_display, amdgpu_virtual_display, int, 0444); + static const struct pci_device_id pciidlist[] = { #ifdef CONFIG_DRM_AMDGPU_CIK /* Kaveri */ |