drm/amdgpu: skip CG/PG for gfx during S0ix

Not needed as the device is in gfxoff state so the CG/PG state
is handled just like it would be for gfxoff during runtime gfxoff.

This should also prevent delays on resume.

Reworked from Pratik's original patch (Alex)

Acked-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Pratik Vishwakarma <Pratik.Vishwakarma@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index a7ad4e3..eb61d5e 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2371,6 +2371,10 @@ static int amdgpu_device_set_cg_state(struct amdgpu_device *adev,
                i = state == AMD_CG_STATE_GATE ? j : adev->num_ip_blocks - j - 1;
                if (!adev->ip_blocks[i].status.late_initialized)
                        continue;
+               /* skip CG for GFX on S0ix */
+               if (adev->in_s0ix &&
+                   adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GFX)
+                       continue;
                /* skip CG for VCE/UVD, it's handled specially */
                if (adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_UVD &&
                    adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_VCE &&
@@ -2402,6 +2406,10 @@ static int amdgpu_device_set_pg_state(struct amdgpu_device *adev, enum amd_power
                i = state == AMD_PG_STATE_GATE ? j : adev->num_ip_blocks - j - 1;
                if (!adev->ip_blocks[i].status.late_initialized)
                        continue;
+               /* skip PG for GFX on S0ix */
+               if (adev->in_s0ix &&
+                   adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GFX)
+                       continue;
                /* skip CG for VCE/UVD, it's handled specially */
                if (adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_UVD &&
                    adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_VCE &&