From: Alex Deucher <alexander.deuc...@amd.com>

[ Upstream commit b5be054c585110b2c5c1b180136800e8c41c7bb4 ]

Need to enter safe mode before touching GC MMIO.

Acked-by: Vitaly Prosyak <vitaly.pros...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index 61e62d846900c..228124b389541 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -4707,6 +4707,8 @@ static int gfx_v11_0_soft_reset(void *handle)
        int r, i, j, k;
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
+       gfx_v11_0_set_safe_mode(adev, 0);
+
        tmp = RREG32_SOC15(GC, 0, regCP_INT_CNTL);
        tmp = REG_SET_FIELD(tmp, CP_INT_CNTL, CMP_BUSY_INT_ENABLE, 0);
        tmp = REG_SET_FIELD(tmp, CP_INT_CNTL, CNTX_BUSY_INT_ENABLE, 0);
@@ -4714,8 +4716,6 @@ static int gfx_v11_0_soft_reset(void *handle)
        tmp = REG_SET_FIELD(tmp, CP_INT_CNTL, GFX_IDLE_INT_ENABLE, 0);
        WREG32_SOC15(GC, 0, regCP_INT_CNTL, tmp);
 
-       gfx_v11_0_set_safe_mode(adev, 0);
-
        mutex_lock(&adev->srbm_mutex);
        for (i = 0; i < adev->gfx.mec.num_mec; ++i) {
                for (j = 0; j < adev->gfx.mec.num_queue_per_pipe; j++) {
-- 
2.43.0

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