linux-kernel - [PATCH AUTOSEL 4.19 001/252] drm/amdgpu: remove set but not used variable 'mc_shared_chmap' from 'gfx_v6_0.c' and 'gfx_v7

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Date:   Fri, 14 Feb 2020 11:07:36 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     yu kuai <yukuai3@...wei.com>,
        Alex Deucher <alexander.deucher@....com>,
        Sasha Levin <sashal@...nel.org>, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 4.19 001/252] drm/amdgpu: remove set but not used variable 'mc_shared_chmap' from 'gfx_v6_0.c' and 'gfx_v7_0.c'

From: yu kuai <yukuai3@...wei.com>

[ Upstream commit 747a397d394fac0001e4b3c03d7dce3a118af567 ]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c: In function
‘gfx_v6_0_constants_init’:
drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c:1579:6: warning: variable
‘mc_shared_chmap’ set but not used [-Wunused-but-set-variable]

drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c: In function
‘gfx_v7_0_gpu_early_init’:
drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c:4262:6: warning: variable
‘mc_shared_chmap’ set but not used [-Wunused-but-set-variable]

Fixes: 2cd46ad22383 ("drm/amdgpu: add graphic pipeline implementation for si v8")
Fixes: d93f3ca706b8 ("drm/amdgpu/gfx7: rework gpu_init()")
Signed-off-by: yu kuai <yukuai3@...wei.com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c | 3 +--
 drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c | 3 +--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
index de184a8860573..016756cec0d10 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
@@ -1555,7 +1555,7 @@ static void gfx_v6_0_config_init(struct amdgpu_device *adev)
 static void gfx_v6_0_gpu_init(struct amdgpu_device *adev)
 {
 	u32 gb_addr_config = 0;
-	u32 mc_shared_chmap, mc_arb_ramcfg;
+	u32 mc_arb_ramcfg;
 	u32 sx_debug_1;
 	u32 hdp_host_path_cntl;
 	u32 tmp;
@@ -1657,7 +1657,6 @@ static void gfx_v6_0_gpu_init(struct amdgpu_device *adev)
 
 	WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK);
 
-	mc_shared_chmap = RREG32(mmMC_SHARED_CHMAP);
 	adev->gfx.config.mc_arb_ramcfg = RREG32(mmMC_ARB_RAMCFG);
 	mc_arb_ramcfg = adev->gfx.config.mc_arb_ramcfg;
 
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index 95452c5a9df6e..8bdcc4a6655af 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -4323,7 +4323,7 @@ static int gfx_v7_0_late_init(void *handle)
 static void gfx_v7_0_gpu_early_init(struct amdgpu_device *adev)
 {
 	u32 gb_addr_config;
-	u32 mc_shared_chmap, mc_arb_ramcfg;
+	u32 mc_arb_ramcfg;
 	u32 dimm00_addr_map, dimm01_addr_map, dimm10_addr_map, dimm11_addr_map;
 	u32 tmp;
 
@@ -4400,7 +4400,6 @@ static void gfx_v7_0_gpu_early_init(struct amdgpu_device *adev)
 		break;
 	}
 
-	mc_shared_chmap = RREG32(mmMC_SHARED_CHMAP);
 	adev->gfx.config.mc_arb_ramcfg = RREG32(mmMC_ARB_RAMCFG);
 	mc_arb_ramcfg = adev->gfx.config.mc_arb_ramcfg;
 
-- 
2.20.1