[PATCH 30/32] drm/amdgpu: program GRBM_MCM_ADDR for non-AID0 GRBM

Alex Deucher alexander.deucher at amd.com
Tue Mar 28 15:13:42 UTC 2023


From: Le Ma <le.ma at amd.com>

Otherwise the EOP interrupt on non-AID0 cannot route to IH0.

Signed-off-by: Le Ma <le.ma at amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling at amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c | 3 +++
 1 file changed, 3 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 3811a7d82af9..bd375e472823 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
@@ -189,7 +189,10 @@ static void gfx_v9_4_3_set_kiq_pm4_funcs(struct amdgpu_device *adev)
 
 static void gfx_v9_4_3_init_golden_registers(struct amdgpu_device *adev)
 {
+	int i;
 
+	for (i = 2; i < adev->gfx.num_xcd; i++)
+		WREG32_SOC15(GC, i, regGRBM_MCM_ADDR, 0x4);
 }
 
 static void gfx_v9_4_3_write_data_to_reg(struct amdgpu_ring *ring, int eng_sel,
-- 
2.39.2



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