From 30d2d9a54d48e4fefede0389ded1b6fc2d44a522 Mon Sep 17 00:00:00 2001 From: Jerome Glisse Date: Wed, 13 Jan 2010 10:29:27 +0100 Subject: [PATCH] drm/radeon/kms: Fix r600 blit cleanup path r600 blit cleanup path need to check if a bo was allocated before trying to free or unpin it. This patch add this check and avoid oops when the initialization on r6xx or r7xx hw fails. Signed-off-by: Jerome Glisse Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r600.c | 12 +++++++----- drivers/gpu/drm/radeon/r600_blit_kms.c | 14 ++++++++------ drivers/gpu/drm/radeon/rv770.c | 10 ++++++---- 3 files changed, 21 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 9757962146fb..3e02dd403d77 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -1961,11 +1961,13 @@ int r600_suspend(struct radeon_device *rdev) r600_wb_disable(rdev); r600_pcie_gart_disable(rdev); /* unpin shaders bo */ - r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false); - if (unlikely(r != 0)) - return r; - radeon_bo_unpin(rdev->r600_blit.shader_obj); - radeon_bo_unreserve(rdev->r600_blit.shader_obj); + if (rdev->r600_blit.shader_obj) { + r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false); + if (!r) { + radeon_bo_unpin(rdev->r600_blit.shader_obj); + radeon_bo_unreserve(rdev->r600_blit.shader_obj); + } + } return 0; } diff --git a/drivers/gpu/drm/radeon/r600_blit_kms.c b/drivers/gpu/drm/radeon/r600_blit_kms.c index 8787ea89dc6e..2bedce477a97 100644 --- a/drivers/gpu/drm/radeon/r600_blit_kms.c +++ b/drivers/gpu/drm/radeon/r600_blit_kms.c @@ -512,14 +512,16 @@ void r600_blit_fini(struct radeon_device *rdev) { int r; + if (rdev->r600_blit.shader_obj == NULL) + return; + /* If we can't reserve the bo, unref should be enough to destroy + * it when it becomes idle. + */ r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false); - if (unlikely(r != 0)) { - dev_err(rdev->dev, "(%d) can't finish r600 blit\n", r); - goto out_unref; + if (!r) { + radeon_bo_unpin(rdev->r600_blit.shader_obj); + radeon_bo_unreserve(rdev->r600_blit.shader_obj); } - radeon_bo_unpin(rdev->r600_blit.shader_obj); - radeon_bo_unreserve(rdev->r600_blit.shader_obj); -out_unref: radeon_bo_unref(&rdev->r600_blit.shader_obj); } diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index 16f7317fa1af..7f17ddf1f45f 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -975,10 +975,12 @@ int rv770_suspend(struct radeon_device *rdev) r600_wb_disable(rdev); rv770_pcie_gart_disable(rdev); /* unpin shaders bo */ - r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false); - if (likely(r == 0)) { - radeon_bo_unpin(rdev->r600_blit.shader_obj); - radeon_bo_unreserve(rdev->r600_blit.shader_obj); + if (rdev->r600_blit.shader_obj) { + r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false); + if (likely(r == 0)) { + radeon_bo_unpin(rdev->r600_blit.shader_obj); + radeon_bo_unreserve(rdev->r600_blit.shader_obj); + } } return 0; } -- 2.39.5