[PATCH] drm/amdgpu: remove GPRs init for ALDEBARAN in gpu reset (v3)

[Zhang, Hawking]

[AMD Official Use Only]

Reviewed-by: Hawking Zhang <Hawking.Zhang at amd.com>

Regards,
Hawking
-----Original Message-----
From: Zhou1, Tao <Tao.Zhou1 at amd.com> 
Sent: Tuesday, October 26, 2021 19:19
To: amd-gfx at lists.freedesktop.org; Zhang, Hawking <Hawking.Zhang at amd.com>
Cc: Zhou1, Tao <Tao.Zhou1 at amd.com>
Subject: [PATCH] drm/amdgpu: remove GPRs init for ALDEBARAN in gpu reset (v3)

Remove GPRs init for ALDEBARAN in gpu reset temporarily, will add the init once the algorithm is stable.

v2: Only remove GPRs init in gpu reset.
v3: Suspend needs it, only skip it in gpu reset.

Signed-off-by: Tao Zhou <tao.zhou1 at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.c
index 24852a24cc58..c4f37a161875 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.c
@@ -706,9 +706,9 @@ int gfx_v9_4_2_do_edc_gpr_workarounds(struct amdgpu_device *adev)
 	if (!amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__GFX))
 		return 0;
 
-	/* Workaround for some CU settings, skip GPRs init.
-	   Will remove it once GPRs init algorithm works for all CU settings */
-	if (adev->gfx.cu_info.bitmap[1][1] == 0x3f7f)
+	/* Workaround for ALDEBARAN, skip GPRs init in GPU reset.
+	   Will remove it once GPRs init algorithm works for all CU settings. */
+	if (amdgpu_in_reset(adev))
 		return 0;
 
 	gfx_v9_4_2_do_sgprs_init(adev);
--
2.17.1