[PATCH 52/53] drm/amdgpu/gfx9.4.3: use rlc safe mode for soft recovery

Alex Deucher alexander.deucher at amd.com
Thu Jul 25 15:00:54 UTC 2024


Protect the MMIO access with safe mode.

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
index 797de64cde74..c1a17bdee6cc 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
@@ -2891,7 +2891,9 @@ static void gfx_v9_4_3_ring_soft_recovery(struct amdgpu_ring *ring,
 	value = REG_SET_FIELD(value, SQ_CMD, MODE, 0x01);
 	value = REG_SET_FIELD(value, SQ_CMD, CHECK_VMID, 1);
 	value = REG_SET_FIELD(value, SQ_CMD, VM_ID, vmid);
+	amdgpu_gfx_rlc_enter_safe_mode(adev, ring->xcc_id);
 	WREG32_SOC15(GC, GET_INST(GC, ring->xcc_id), regSQ_CMD, value);
+	amdgpu_gfx_rlc_exit_safe_mode(adev, ring->xcc_id);
 }
 
 static void gfx_v9_4_3_xcc_set_compute_eop_interrupt_state(
-- 
2.45.2



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