[PATCH] drm/amdgpu/gfx11: properly handle regGRBM_GFX_CNTL in soft reset

[Alex Deucher]

Need to take the srbm_mutex and while we are here, use the
helper function soc21_grbm_select();

Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index 7a906318e4519..dc9c0f67607b3 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -4506,14 +4506,11 @@ static int gfx_v11_0_soft_reset(void *handle)
 
        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++) {
                        for (k = 0; k < adev->gfx.mec.num_pipe_per_mec; k++) {
-                               tmp = RREG32_SOC15(GC, 0, regGRBM_GFX_CNTL);
-                               tmp = REG_SET_FIELD(tmp, GRBM_GFX_CNTL, MEID, 
i);
-                               tmp = REG_SET_FIELD(tmp, GRBM_GFX_CNTL, 
QUEUEID, j);
-                               tmp = REG_SET_FIELD(tmp, GRBM_GFX_CNTL, PIPEID, 
k);
-                               WREG32_SOC15(GC, 0, regGRBM_GFX_CNTL, tmp);
+                               soc21_grbm_select(adev, i, k, j, 0);
 
                                WREG32_SOC15(GC, 0, regCP_HQD_DEQUEUE_REQUEST, 
0x2);
                                WREG32_SOC15(GC, 0, regSPI_COMPUTE_QUEUE_RESET, 
0x1);
@@ -4523,16 +4520,14 @@ static int gfx_v11_0_soft_reset(void *handle)
        for (i = 0; i < adev->gfx.me.num_me; ++i) {
                for (j = 0; j < adev->gfx.me.num_queue_per_pipe; j++) {
                        for (k = 0; k < adev->gfx.me.num_pipe_per_me; k++) {
-                               tmp = RREG32_SOC15(GC, 0, regGRBM_GFX_CNTL);
-                               tmp = REG_SET_FIELD(tmp, GRBM_GFX_CNTL, MEID, 
i);
-                               tmp = REG_SET_FIELD(tmp, GRBM_GFX_CNTL, 
QUEUEID, j);
-                               tmp = REG_SET_FIELD(tmp, GRBM_GFX_CNTL, PIPEID, 
k);
-                               WREG32_SOC15(GC, 0, regGRBM_GFX_CNTL, tmp);
+                               soc21_grbm_select(adev, i, k, j, 0);
 
                                WREG32_SOC15(GC, 0, 
regCP_GFX_HQD_DEQUEUE_REQUEST, 0x1);
                        }
                }
        }
+       soc21_grbm_select(adev, 0, 0, 0, 0);
+       mutex_unlock(&adev->srbm_mutex);
 
        /* Try to acquire the gfx mutex before access to CP_VMID_RESET */
        r = gfx_v11_0_request_gfx_index_mutex(adev, 1);
-- 
2.44.0