[PATCH] drm/amdgpu: No need to check gfxoff status after enable gfxoff feature

[Quan, Evan]

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

-----Original Message-----
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of chen gong
Sent: Monday, October 14, 2019 10:58 AM
To: amd-gfx at lists.freedesktop.org
Cc: Gong, Curry <Curry.Gong at amd.com>
Subject: [PATCH] drm/amdgpu: No need to check gfxoff status after enable gfxoff feature

smu_send_smc_msg(smu, SMU_MSG_AllowGfxOff) Just turn on a switch.

As to when GPU get into "GFXoff" will be up to drawing load.

So we can not sure which state GPU should be in after enable gfxoff feature.

Signed-off-by: chen gong <curry.gong at amd.com>
---
 drivers/gpu/drm/amd/powerplay/smu_v12_0.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/gpu/drm/amd/powerplay/smu_v12_0.c b/drivers/gpu/drm/amd/powerplay/smu_v12_0.c
index c9691d0..cac4269 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_v12_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v12_0.c
@@ -244,15 +244,6 @@ static int smu_v12_0_gfx_off_control(struct smu_context *smu, bool enable)
 	if (enable) {
 		ret = smu_send_smc_msg(smu, SMU_MSG_AllowGfxOff);
 
-		/* confirm gfx is back to "off" state, timeout is 5 seconds */
-		while (!(smu_v12_0_get_gfxoff_status(smu) == 0)) {
-			msleep(10);
-			timeout--;
-			if (timeout == 0) {
-				DRM_ERROR("enable gfxoff timeout and failed!\n");
-				break;
-			}
-		}
 	} else {
 		ret = smu_send_smc_msg(smu, SMU_MSG_DisallowGfxOff);
 
--
2.7.4

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