From f5e9217563b8fff877bc4a8f014e0899d4de9d48 Mon Sep 17 00:00:00 2001
From: Tim Huang <tim.huang@amd.com>
Date: Mon, 22 Aug 2022 13:30:44 +0800
Subject: drm/amdgpu: add sdma instance check for gfx11 CGCG
Git-commit: 00047c3d967d7ef8adf8bac3c3579294a3bc0bb1
Patch-mainline: v6.0-rc3
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225 jsc#PED-2849
For some ASICs, like GFX IP v11.0.1, only have one SDMA instance,
so not need to configure SDMA1_RLC_CGCG_CTRL for this case.
Signed-off-by: Tim Huang <tim.huang@amd.com>
Reviewed-by: Yifan Zhang <yifan1.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 18 ++++++++++++------
1 file changed, 12 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index f45db80810fa..e8db772e068c 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -5182,9 +5182,12 @@ static void gfx_v11_0_update_coarse_grain_clock_gating(struct amdgpu_device *ade
data = REG_SET_FIELD(data, SDMA0_RLC_CGCG_CTRL, CGCG_INT_ENABLE, 1);
WREG32_SOC15(GC, 0, regSDMA0_RLC_CGCG_CTRL, data);
- data = RREG32_SOC15(GC, 0, regSDMA1_RLC_CGCG_CTRL);
- data = REG_SET_FIELD(data, SDMA1_RLC_CGCG_CTRL, CGCG_INT_ENABLE, 1);
- WREG32_SOC15(GC, 0, regSDMA1_RLC_CGCG_CTRL, data);
+ /* Some ASICs only have one SDMA instance, not need to configure SDMA1 */
+ if (adev->sdma.num_instances > 1) {
+ data = RREG32_SOC15(GC, 0, regSDMA1_RLC_CGCG_CTRL);
+ data = REG_SET_FIELD(data, SDMA1_RLC_CGCG_CTRL, CGCG_INT_ENABLE, 1);
+ WREG32_SOC15(GC, 0, regSDMA1_RLC_CGCG_CTRL, data);
+ }
} else {
/* Program RLC_CGCG_CGLS_CTRL */
def = data = RREG32_SOC15(GC, 0, regRLC_CGCG_CGLS_CTRL);
@@ -5213,9 +5216,12 @@ static void gfx_v11_0_update_coarse_grain_clock_gating(struct amdgpu_device *ade
data &= ~SDMA0_RLC_CGCG_CTRL__CGCG_INT_ENABLE_MASK;
WREG32_SOC15(GC, 0, regSDMA0_RLC_CGCG_CTRL, data);
- data = RREG32_SOC15(GC, 0, regSDMA1_RLC_CGCG_CTRL);
- data &= ~SDMA1_RLC_CGCG_CTRL__CGCG_INT_ENABLE_MASK;
- WREG32_SOC15(GC, 0, regSDMA1_RLC_CGCG_CTRL, data);
+ /* Some ASICs only have one SDMA instance, not need to configure SDMA1 */
+ if (adev->sdma.num_instances > 1) {
+ data = RREG32_SOC15(GC, 0, regSDMA1_RLC_CGCG_CTRL);
+ data &= ~SDMA1_RLC_CGCG_CTRL__CGCG_INT_ENABLE_MASK;
+ WREG32_SOC15(GC, 0, regSDMA1_RLC_CGCG_CTRL, data);
+ }
}
}
--
2.38.1