From: Tom St Denis <tom.stdenis@amd.com>
Date: Thu, 31 Aug 2017 09:48:11 -0400
Subject: drm/amd/amdgpu: Simplify gfx_v9_0_wait_for_idle()
Git-commit: 2b9bdfa70faf8c00969f91d3c4548a0df6071b90
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -2937,15 +2937,10 @@ static bool gfx_v9_0_is_idle(void *handl
static int gfx_v9_0_wait_for_idle(void *handle)
{
unsigned i;
- u32 tmp;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
for (i = 0; i < adev->usec_timeout; i++) {
- /* read MC_STATUS */
- tmp = RREG32_SOC15(GC, 0, mmGRBM_STATUS) &
- GRBM_STATUS__GUI_ACTIVE_MASK;
-
- if (!REG_GET_FIELD(tmp, GRBM_STATUS, GUI_ACTIVE))
+ if (gfx_v9_0_is_idle(handle))
return 0;
udelay(1);
}