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path: root/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c
index ae9cd1a4cfee..923fc09bc8fc 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c
@@ -177,10 +177,11 @@ static void mmhub_v3_0_init_system_aperture_regs(struct amdgpu_device *adev)
* these regs, and they will be programed at host.
* so skip programing these regs.
*/
- /* Disable AGP. */
+ /* Program the AGP BAR */
WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BASE, 0);
- WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_TOP, 0);
- WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BOT, 0x00FFFFFF);
+ WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BOT, adev->gmc.agp_start >> 24);
+ WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_TOP, adev->gmc.agp_end >> 24);
+
/* Program the system aperture low logical page number. */
WREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_LOW_ADDR,
adev->gmc.vram_start >> 18);