Revert "drm/amdgpu: workaround the TMR MC address issue (v2)"

This reverts commit 2f05509.
2f05509 was a driver workaround
when PSP firmware was not ready. Now the PSP fw is ready so we
revert this driver workaround.

Signed-off-by: Oak Zeng <[email protected]>
Reviewed-by: Harish Kasiviswanathan <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

Author: oakzeng

drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h

@@ -218,15 +218,6 @@ struct amdgpu_gmc {
 	 */
 	u64			fb_start;
 	u64			fb_end;
-	/* In the case of use GART table for vmid0 FB access, [fb_start, fb_end]
-	 * will be squeezed to GART aperture. But we have a PSP FW issue to fix
-	 * for now. To temporarily workaround the PSP FW issue, added below two
-	 * variables to remember the original fb_start/end to re-enable FB
-	 * aperture to workaround the PSP FW issue. Will delete it after we
-	 * get a proper PSP FW fix.
-	 */
-	u64			fb_start_original;
-	u64			fb_end_original;
 	unsigned		vram_width;
 	u64			real_vram_size;
 	int			vram_mtrr;

drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c

@@ -414,16 +414,6 @@ static int psp_tmr_init(struct psp_context *psp)
 				      AMDGPU_GEM_DOMAIN_VRAM,
 				      &psp->tmr_bo, &psp->tmr_mc_addr, pptr);
 
-	/* workaround the tmr_mc_addr:
-	 * PSP requires an address in FB aperture. Right now driver produce
-	 * tmr_mc_addr in the GART aperture. Convert it back to FB aperture
-	 * for PSP. Will revert it after we get a fix from PSP FW.
-	 */
-	if (psp->adev->asic_type == CHIP_ALDEBARAN) {
-		psp->tmr_mc_addr -= psp->adev->gmc.fb_start;
-		psp->tmr_mc_addr += psp->adev->gmc.fb_start_original;
-	}
-
 	return ret;
 }
 

drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c

@@ -140,21 +140,12 @@ static void gfxhub_v1_0_init_system_aperture_regs(struct amdgpu_device *adev)
 	 * FB aperture and AGP aperture. Disable them.
 	 */
 	if (adev->gmc.pdb0_bo) {
-		if (adev->asic_type == CHIP_ALDEBARAN) {
-			WREG32_SOC15(GC, 0, mmMC_VM_FB_LOCATION_TOP, adev->gmc.fb_end_original >> 24);
-			WREG32_SOC15(GC, 0, mmMC_VM_FB_LOCATION_BASE, adev->gmc.fb_start_original >> 24);
-			WREG32_SOC15(GC, 0, mmMC_VM_AGP_TOP, 0);
-			WREG32_SOC15(GC, 0, mmMC_VM_AGP_BOT, 0xFFFFFF);
-			WREG32_SOC15(GC, 0, mmMC_VM_SYSTEM_APERTURE_LOW_ADDR, adev->gmc.fb_start_original >> 18);
-			WREG32_SOC15(GC, 0, mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR, adev->gmc.fb_end_original >> 18);
-		} else {
-			WREG32_SOC15(GC, 0, mmMC_VM_FB_LOCATION_TOP, 0);
-			WREG32_SOC15(GC, 0, mmMC_VM_FB_LOCATION_BASE, 0x00FFFFFF);
-			WREG32_SOC15(GC, 0, mmMC_VM_AGP_TOP, 0);
-			WREG32_SOC15(GC, 0, mmMC_VM_AGP_BOT, 0xFFFFFF);
-			WREG32_SOC15(GC, 0, mmMC_VM_SYSTEM_APERTURE_LOW_ADDR, 0x3FFFFFFF);
-			WREG32_SOC15(GC, 0, mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR, 0);
-		}
+		WREG32_SOC15(GC, 0, mmMC_VM_FB_LOCATION_TOP, 0);
+		WREG32_SOC15(GC, 0, mmMC_VM_FB_LOCATION_BASE, 0x00FFFFFF);
+		WREG32_SOC15(GC, 0, mmMC_VM_AGP_TOP, 0);
+		WREG32_SOC15(GC, 0, mmMC_VM_AGP_BOT, 0xFFFFFF);
+		WREG32_SOC15(GC, 0, mmMC_VM_SYSTEM_APERTURE_LOW_ADDR, 0x3FFFFFFF);
+		WREG32_SOC15(GC, 0, mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR, 0);
 	}
 }
 

drivers/gpu/drm/amd/amdgpu/mmhub_v1_7.c

@@ -47,8 +47,6 @@ static u64 mmhub_v1_7_get_fb_location(struct amdgpu_device *adev)
 
 	adev->gmc.fb_start = base;
 	adev->gmc.fb_end = top;
-	adev->gmc.fb_start_original = base;
-	adev->gmc.fb_end_original = top;
 
 	return base;
 }
@@ -126,10 +124,10 @@ static void mmhub_v1_7_init_system_aperture_regs(struct amdgpu_device *adev)
 	if (adev->gmc.pdb0_bo) {
 		WREG32_SOC15(MMHUB, 0, regMC_VM_AGP_BOT, 0xFFFFFF);
 		WREG32_SOC15(MMHUB, 0, regMC_VM_AGP_TOP, 0);
-		WREG32_SOC15(MMHUB, 0, regMC_VM_FB_LOCATION_TOP, adev->gmc.fb_end_original >> 24);
-		WREG32_SOC15(MMHUB, 0, regMC_VM_FB_LOCATION_BASE, adev->gmc.fb_start_original >> 24);
-		WREG32_SOC15(MMHUB, 0, regMC_VM_SYSTEM_APERTURE_LOW_ADDR, adev->gmc.fb_start_original >> 18);
-		WREG32_SOC15(MMHUB, 0, regMC_VM_SYSTEM_APERTURE_HIGH_ADDR, adev->gmc.fb_end_original >> 18);
+		WREG32_SOC15(MMHUB, 0, regMC_VM_FB_LOCATION_TOP, 0);
+		WREG32_SOC15(MMHUB, 0, regMC_VM_FB_LOCATION_BASE, 0x00FFFFFF);
+		WREG32_SOC15(MMHUB, 0, regMC_VM_SYSTEM_APERTURE_LOW_ADDR, 0x3FFFFFFF);
+		WREG32_SOC15(MMHUB, 0, regMC_VM_SYSTEM_APERTURE_HIGH_ADDR, 0);
 	}
 	if (amdgpu_sriov_vf(adev))
 		return;