drm/radeon: Remove radeon_gart_restore()

Doesn't seem necessary, the GART table memory should be persistent.
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/radeon/cik.c

@@ -5703,7 +5703,6 @@ static int cik_pcie_gart_enable(struct radeon_device *rdev)
 	r = radeon_gart_table_vram_pin(rdev);
 	if (r)
 		return r;
-	radeon_gart_restore(rdev);
 	/* Setup TLB control */
 	WREG32(MC_VM_MX_L1_TLB_CNTL,
 	       (0xA << 7) |

drivers/gpu/drm/radeon/evergreen.c

@@ -2424,7 +2424,6 @@ static int evergreen_pcie_gart_enable(struct radeon_device *rdev)
 	r = radeon_gart_table_vram_pin(rdev);
 	if (r)
 		return r;
-	radeon_gart_restore(rdev);
 	/* Setup L2 cache */
 	WREG32(VM_L2_CNTL, ENABLE_L2_CACHE | ENABLE_L2_FRAGMENT_PROCESSING |
 				ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |

drivers/gpu/drm/radeon/ni.c

@@ -1229,7 +1229,6 @@ static int cayman_pcie_gart_enable(struct radeon_device *rdev)
 	r = radeon_gart_table_vram_pin(rdev);
 	if (r)
 		return r;
-	radeon_gart_restore(rdev);
 	/* Setup TLB control */
 	WREG32(MC_VM_MX_L1_TLB_CNTL,
 	       (0xA << 7) |

drivers/gpu/drm/radeon/r100.c

@@ -652,7 +652,6 @@ int r100_pci_gart_enable(struct radeon_device *rdev)
 {
 	uint32_t tmp;
 
-	radeon_gart_restore(rdev);
 	/* discard memory request outside of configured range */
 	tmp = RREG32(RADEON_AIC_CNTL) | RADEON_DIS_OUT_OF_PCI_GART_ACCESS;
 	WREG32(RADEON_AIC_CNTL, tmp);

drivers/gpu/drm/radeon/r300.c

@@ -120,7 +120,6 @@ int rv370_pcie_gart_enable(struct radeon_device *rdev)
 	r = radeon_gart_table_vram_pin(rdev);
 	if (r)
 		return r;
-	radeon_gart_restore(rdev);
 	/* discard memory request outside of configured range */
 	tmp = RADEON_PCIE_TX_GART_UNMAPPED_ACCESS_DISCARD;
 	WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp);

drivers/gpu/drm/radeon/r600.c

@@ -968,7 +968,6 @@ static int r600_pcie_gart_enable(struct radeon_device *rdev)
 	r = radeon_gart_table_vram_pin(rdev);
 	if (r)
 		return r;
-	radeon_gart_restore(rdev);
 
 	/* Setup L2 cache */
 	WREG32(VM_L2_CNTL, ENABLE_L2_CACHE | ENABLE_L2_FRAGMENT_PROCESSING |

drivers/gpu/drm/radeon/radeon.h

@@ -618,7 +618,6 @@ void radeon_gart_unbind(struct radeon_device *rdev, unsigned offset,
 int radeon_gart_bind(struct radeon_device *rdev, unsigned offset,
 		     int pages, struct page **pagelist,
 		     dma_addr_t *dma_addr);
-void radeon_gart_restore(struct radeon_device *rdev);
 
 
 /*

drivers/gpu/drm/radeon/radeon_gart.c

@@ -297,33 +297,6 @@ int radeon_gart_bind(struct radeon_device *rdev, unsigned offset,
 	return 0;
 }
 
-/**
- * radeon_gart_restore - bind all pages in the gart page table
- *
- * @rdev: radeon_device pointer
- *
- * Binds all pages in the gart page table (all asics).
- * Used to rebuild the gart table on device startup or resume.
- */
-void radeon_gart_restore(struct radeon_device *rdev)
-{
-	int i, j, t;
-	u64 page_base;
-
-	if (!rdev->gart.ptr) {
-		return;
-	}
-	for (i = 0, t = 0; i < rdev->gart.num_cpu_pages; i++) {
-		page_base = rdev->gart.pages_addr[i];
-		for (j = 0; j < (PAGE_SIZE / RADEON_GPU_PAGE_SIZE); j++, t++) {
-			radeon_gart_set_page(rdev, t, page_base);
-			page_base += RADEON_GPU_PAGE_SIZE;
-		}
-	}
-	mb();
-	radeon_gart_tlb_flush(rdev);
-}
-
 /**
  * radeon_gart_init - init the driver info for managing the gart
  *

drivers/gpu/drm/radeon/rs400.c

@@ -109,7 +109,6 @@ int rs400_gart_enable(struct radeon_device *rdev)
 	uint32_t size_reg;
 	uint32_t tmp;
 
-	radeon_gart_restore(rdev);
 	tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
 	tmp |= RS690_DIS_OUT_OF_PCI_GART_ACCESS;
 	WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp);

drivers/gpu/drm/radeon/rs600.c

@@ -555,7 +555,6 @@ static int rs600_gart_enable(struct radeon_device *rdev)
 	r = radeon_gart_table_vram_pin(rdev);
 	if (r)
 		return r;
-	radeon_gart_restore(rdev);
 	/* Enable bus master */
 	tmp = RREG32(RADEON_BUS_CNTL) & ~RS600_BUS_MASTER_DIS;
 	WREG32(RADEON_BUS_CNTL, tmp);

drivers/gpu/drm/radeon/rv770.c

@@ -900,7 +900,6 @@ static int rv770_pcie_gart_enable(struct radeon_device *rdev)
 	r = radeon_gart_table_vram_pin(rdev);
 	if (r)
 		return r;
-	radeon_gart_restore(rdev);
 	/* Setup L2 cache */
 	WREG32(VM_L2_CNTL, ENABLE_L2_CACHE | ENABLE_L2_FRAGMENT_PROCESSING |
 				ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |

drivers/gpu/drm/radeon/si.c

@@ -4247,7 +4247,6 @@ static int si_pcie_gart_enable(struct radeon_device *rdev)
 	r = radeon_gart_table_vram_pin(rdev);
 	if (r)
 		return r;
-	radeon_gart_restore(rdev);
 	/* Setup TLB control */
 	WREG32(MC_VM_MX_L1_TLB_CNTL,
 	       (0xA << 7) |