[PATCH] drm/amdgpu: During compute disable GFXOFF for Sienna_Cichlid

[Quan, Evan]

[AMD Official Use Only - Internal Distribution Only]

Acked-by: Evan Quan <evan.quan at amd.com>

-----Original Message-----
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Harish Kasiviswanathan
Sent: Friday, October 23, 2020 3:41 AM
To: amd-gfx at lists.freedesktop.org
Cc: Kasiviswanathan, Harish <Harish.Kasiviswanathan at amd.com>
Subject: [PATCH] drm/amdgpu: During compute disable GFXOFF for Sienna_Cichlid

Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan at amd.com>
Change-Id: Ia9f8872b7654b99864bbef1afb9998d0cf39b7e5
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
index 90fb864ac7aa..450389218516 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
@@ -647,6 +647,13 @@ void amdgpu_amdkfd_set_compute_idle(struct kgd_dev *kgd, bool idle)  {
 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;

+/* Temp workaround to fix the soft hang observed in certain compute
+ * applications if GFXOFF is enabled.
+ */
+if (adev->asic_type == CHIP_SIENNA_CICHLID) {
+pr_debug("GFXOFF is %s\n", idle ? "enabled" : "disabled");
+amdgpu_gfx_off_ctrl(adev, idle);
+}
 amdgpu_dpm_switch_power_profile(adev,
 PP_SMC_POWER_PROFILE_COMPUTE,
 !idle);
--
2.25.1

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