From c9a1be96277b3b2d2e8aff2ba69d7817ea8e46c9 Mon Sep 17 00:00:00 2001 From: Jerome Glisse Date: Thu, 3 Nov 2011 11:16:49 -0400 Subject: drm/radeon/kms: consolidate GART code, fix segfault after GPU lockup V2 After GPU lockup VRAM gart table is unpinned and thus its pointer becomes unvalid. This patch move the unpin code to a common helper function and set pointer to NULL so that page update code can check if it should update GPU page table or not. That way bo still bound to GART can be unbound (pci_unmap_page for all there page) properly while there is no need to update the GPU page table. V2 move the test for null gart out of the loop, small optimization Signed-off-by: Jerome Glisse Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r300.c | 16 ++++------------ 1 file changed, 4 insertions(+), 12 deletions(-) (limited to 'drivers/gpu/drm/radeon/r300.c') diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c index 33f2b68c680..400b26df652 100644 --- a/drivers/gpu/drm/radeon/r300.c +++ b/drivers/gpu/drm/radeon/r300.c @@ -74,7 +74,7 @@ void rv370_pcie_gart_tlb_flush(struct radeon_device *rdev) int rv370_pcie_gart_set_page(struct radeon_device *rdev, int i, uint64_t addr) { - void __iomem *ptr = (void *)rdev->gart.table.vram.ptr; + void __iomem *ptr = rdev->gart.ptr; if (i < 0 || i > rdev->gart.num_gpu_pages) { return -EINVAL; @@ -93,7 +93,7 @@ int rv370_pcie_gart_init(struct radeon_device *rdev) { int r; - if (rdev->gart.table.vram.robj) { + if (rdev->gart.robj) { WARN(1, "RV370 PCIE GART already initialized\n"); return 0; } @@ -116,7 +116,7 @@ int rv370_pcie_gart_enable(struct radeon_device *rdev) uint32_t tmp; int r; - if (rdev->gart.table.vram.robj == NULL) { + if (rdev->gart.robj == NULL) { dev_err(rdev->dev, "No VRAM object for PCIE GART.\n"); return -EINVAL; } @@ -154,7 +154,6 @@ int rv370_pcie_gart_enable(struct radeon_device *rdev) void rv370_pcie_gart_disable(struct radeon_device *rdev) { u32 tmp; - int r; WREG32_PCIE(RADEON_PCIE_TX_GART_START_LO, 0); WREG32_PCIE(RADEON_PCIE_TX_GART_END_LO, 0); @@ -163,14 +162,7 @@ void rv370_pcie_gart_disable(struct radeon_device *rdev) tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL); tmp |= RADEON_PCIE_TX_GART_UNMAPPED_ACCESS_DISCARD; WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp & ~RADEON_PCIE_TX_GART_EN); - if (rdev->gart.table.vram.robj) { - r = radeon_bo_reserve(rdev->gart.table.vram.robj, false); - if (likely(r == 0)) { - radeon_bo_kunmap(rdev->gart.table.vram.robj); - radeon_bo_unpin(rdev->gart.table.vram.robj); - radeon_bo_unreserve(rdev->gart.table.vram.robj); - } - } + radeon_gart_table_vram_unpin(rdev); } void rv370_pcie_gart_fini(struct radeon_device *rdev) -- cgit v1.2.3-70-g09d2