From 16cdf04d30c24a6e698863351c11d9a8da2591ed Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 28 Oct 2011 10:30:02 -0400 Subject: drm/radeon/kms: allocate vram scratch page on 6xx+ The vram scratch was originally only used on some 7xx asics to work around a hw bug. Allocate the scratch page on all 6xx+ radeons and set the MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR to point to it. We shouldn't ever hit it since we limit the system aperture to vram or vram and AGP, but better safe than sorry. Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/rv770.c | 60 +++++------------------------------------- 1 file changed, 7 insertions(+), 53 deletions(-) (limited to 'drivers/gpu/drm/radeon/rv770.c') diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index 87cc1fe..a09049d 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -282,7 +282,7 @@ static void rv770_mc_program(struct radeon_device *rdev) WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR, rdev->mc.vram_end >> 12); } - WREG32(MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR, 0); + WREG32(MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR, rdev->vram_scratch.gpu_addr >> 12); tmp = ((rdev->mc.vram_end >> 24) & 0xFFFF) << 16; tmp |= ((rdev->mc.vram_start >> 24) & 0xFFFF); WREG32(MC_VM_FB_LOCATION, tmp); @@ -959,54 +959,6 @@ static void rv770_gpu_init(struct radeon_device *rdev) } -static int rv770_vram_scratch_init(struct radeon_device *rdev) -{ - int r; - u64 gpu_addr; - - if (rdev->vram_scratch.robj == NULL) { - r = radeon_bo_create(rdev, RADEON_GPU_PAGE_SIZE, - PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM, - &rdev->vram_scratch.robj); - if (r) { - return r; - } - } - - r = radeon_bo_reserve(rdev->vram_scratch.robj, false); - if (unlikely(r != 0)) - return r; - r = radeon_bo_pin(rdev->vram_scratch.robj, - RADEON_GEM_DOMAIN_VRAM, &gpu_addr); - if (r) { - radeon_bo_unreserve(rdev->vram_scratch.robj); - return r; - } - r = radeon_bo_kmap(rdev->vram_scratch.robj, - (void **)&rdev->vram_scratch.ptr); - if (r) - radeon_bo_unpin(rdev->vram_scratch.robj); - radeon_bo_unreserve(rdev->vram_scratch.robj); - - return r; -} - -static void rv770_vram_scratch_fini(struct radeon_device *rdev) -{ - int r; - - if (rdev->vram_scratch.robj == NULL) { - return; - } - r = radeon_bo_reserve(rdev->vram_scratch.robj, false); - if (likely(r == 0)) { - radeon_bo_kunmap(rdev->vram_scratch.robj); - radeon_bo_unpin(rdev->vram_scratch.robj); - radeon_bo_unreserve(rdev->vram_scratch.robj); - } - radeon_bo_unref(&rdev->vram_scratch.robj); -} - void r700_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc) { u64 size_bf, size_af; @@ -1106,6 +1058,10 @@ static int rv770_startup(struct radeon_device *rdev) } } + r = r600_vram_scratch_init(rdev); + if (r) + return r; + rv770_mc_program(rdev); if (rdev->flags & RADEON_IS_AGP) { rv770_agp_enable(rdev); @@ -1114,9 +1070,7 @@ static int rv770_startup(struct radeon_device *rdev) if (r) return r; } - r = rv770_vram_scratch_init(rdev); - if (r) - return r; + rv770_gpu_init(rdev); r = r600_blit_init(rdev); if (r) { @@ -1316,7 +1270,7 @@ void rv770_fini(struct radeon_device *rdev) radeon_ib_pool_fini(rdev); radeon_irq_kms_fini(rdev); rv770_pcie_gart_fini(rdev); - rv770_vram_scratch_fini(rdev); + r600_vram_scratch_fini(rdev); radeon_gem_fini(rdev); radeon_fence_driver_fini(rdev); radeon_agp_fini(rdev); -- cgit v1.1