Commit 714ff852 authored Aug 29, 2018 by Hawking Zhang Committed by Alex Deucher Jun 20, 2019

drm/amdgpu: add new HDP CG flags



HDP 5.0 supports SRAM power gating. all the LS (Light Sleep)/
DS (Deep Sleep)/SD (Shut Down) modes are supported. However,
only one of these modes can be enabled at one time.

There is no dynamic power mode switch support. clock/power gating
has to be disabled before making any power mode change.

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

parent 54fc4472

drivers/gpu/drm/amd/include/amd_shared.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -93,6 +93,8 @@ enum amd_powergating_state {
		#define AMD_CG_SUPPORT_DRM_MGCG (1 << 22)
		#define AMD_CG_SUPPORT_DF_MGCG (1 << 23)
		#define AMD_CG_SUPPORT_VCN_MGCG (1 << 24)
		#define AMD_CG_SUPPORT_HDP_DS (1 << 25)
		#define AMD_CG_SUPPORT_HDP_SD (1 << 26)
		/* PG flags */
		#define AMD_PG_SUPPORT_GFX_PG (1 << 0)
		#define AMD_PG_SUPPORT_GFX_SMG (1 << 1)

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