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authorPatrik Jakobsson <patrik.jakobsson@linux.intel.com>2015-11-16 17:01:06 +0300
committerImre Deak <imre.deak@intel.com>2015-11-17 21:55:20 +0300
commit443646c7ee2749ae4b09f05dfe643d95c43f960f (patch)
tree0122dc30b75eed5fec0f59246d33e1c716598dcb /drivers/gpu/drm/i915/i915_params.c
parent9f836f9016ad5320e0c9230419d2102cf15a28aa (diff)
downloadlinux-443646c7ee2749ae4b09f05dfe643d95c43f960f.tar.xz
drm/i915/gen9: Add boot parameter for disabling DC6
v2: Use _unsafe (Jani) v3: Allow specifying specific DC-states instead of just DC6 (Imre) Signed-off-by: Patrik Jakobsson <patrik.jakobsson@linux.intel.com> Reviewed-by: Imre Deak <imre.deak@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1447682467-6237-3-git-send-email-patrik.jakobsson@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_params.c')
-rw-r--r--drivers/gpu/drm/i915/i915_params.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c
index 8ce9a99b538f..07a79b90315c 100644
--- a/drivers/gpu/drm/i915/i915_params.c
+++ b/drivers/gpu/drm/i915/i915_params.c
@@ -32,6 +32,7 @@ struct i915_params i915 __read_mostly = {
.panel_use_ssc = -1,
.vbt_sdvo_panel_type = -1,
.enable_rc6 = -1,
+ .enable_dc = -1,
.enable_fbc = -1,
.enable_execlists = -1,
.enable_hangcheck = true,
@@ -79,6 +80,11 @@ MODULE_PARM_DESC(enable_rc6,
"For example, 3 would enable rc6 and deep rc6, and 7 would enable everything. "
"default: -1 (use per-chip default)");
+module_param_named_unsafe(enable_dc, i915.enable_dc, int, 0400);
+MODULE_PARM_DESC(enable_dc,
+ "Enable power-saving display C-states. "
+ "(-1=auto [default]; 0=disable; 1=up to DC5; 2=up to DC6)");
+
module_param_named_unsafe(enable_fbc, i915.enable_fbc, int, 0600);
MODULE_PARM_DESC(enable_fbc,
"Enable frame buffer compression for power savings "