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| author | David S. Miller <davem@davemloft.net> | 2019-06-22 08:59:24 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-06-22 08:59:24 -0400 |
| commit | 92ad6325cb891bb455487bfe90cc47d18aa6ec37 (patch) | |
| tree | 433a7ef938fae69789216043f67eff9f9c6b0c68 /drivers/gpu/drm/panfrost | |
| parent | e0effb5fbd56a8b2b8917611cbf4fcd9aba92b8f (diff) | |
| parent | c356dc4b540edd6c02b409dd8cf3208ba2804c38 (diff) | |
| download | blackbird-op-linux-92ad6325cb891bb455487bfe90cc47d18aa6ec37.tar.gz blackbird-op-linux-92ad6325cb891bb455487bfe90cc47d18aa6ec37.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Minor SPDX change conflict.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/gpu/drm/panfrost')
| -rw-r--r-- | drivers/gpu/drm/panfrost/panfrost_gem.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/panfrost/panfrost_gem.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/panfrost/panfrost_mmu.c | 8 |
3 files changed, 11 insertions, 1 deletions
diff --git a/drivers/gpu/drm/panfrost/panfrost_gem.c b/drivers/gpu/drm/panfrost/panfrost_gem.c index a5528a360ef4..97d64ceedbb4 100644 --- a/drivers/gpu/drm/panfrost/panfrost_gem.c +++ b/drivers/gpu/drm/panfrost/panfrost_gem.c @@ -19,7 +19,8 @@ static void panfrost_gem_free_object(struct drm_gem_object *obj) struct panfrost_gem_object *bo = to_panfrost_bo(obj); struct panfrost_device *pfdev = obj->dev->dev_private; - panfrost_mmu_unmap(bo); + if (bo->is_mapped) + panfrost_mmu_unmap(bo); spin_lock(&pfdev->mm_lock); drm_mm_remove_node(&bo->node); diff --git a/drivers/gpu/drm/panfrost/panfrost_gem.h b/drivers/gpu/drm/panfrost/panfrost_gem.h index 045000eb5fcf..6dbcaba020fc 100644 --- a/drivers/gpu/drm/panfrost/panfrost_gem.h +++ b/drivers/gpu/drm/panfrost/panfrost_gem.h @@ -11,6 +11,7 @@ struct panfrost_gem_object { struct drm_gem_shmem_object base; struct drm_mm_node node; + bool is_mapped; }; static inline diff --git a/drivers/gpu/drm/panfrost/panfrost_mmu.c b/drivers/gpu/drm/panfrost/panfrost_mmu.c index 762b1bd2a8c2..92ac995dd9c6 100644 --- a/drivers/gpu/drm/panfrost/panfrost_mmu.c +++ b/drivers/gpu/drm/panfrost/panfrost_mmu.c @@ -156,6 +156,9 @@ int panfrost_mmu_map(struct panfrost_gem_object *bo) struct sg_table *sgt; int ret; + if (WARN_ON(bo->is_mapped)) + return 0; + sgt = drm_gem_shmem_get_pages_sgt(obj); if (WARN_ON(IS_ERR(sgt))) return PTR_ERR(sgt); @@ -189,6 +192,7 @@ int panfrost_mmu_map(struct panfrost_gem_object *bo) pm_runtime_mark_last_busy(pfdev->dev); pm_runtime_put_autosuspend(pfdev->dev); + bo->is_mapped = true; return 0; } @@ -203,6 +207,9 @@ void panfrost_mmu_unmap(struct panfrost_gem_object *bo) size_t unmapped_len = 0; int ret; + if (WARN_ON(!bo->is_mapped)) + return; + dev_dbg(pfdev->dev, "unmap: iova=%llx, len=%zx", iova, len); ret = pm_runtime_get_sync(pfdev->dev); @@ -230,6 +237,7 @@ void panfrost_mmu_unmap(struct panfrost_gem_object *bo) pm_runtime_mark_last_busy(pfdev->dev); pm_runtime_put_autosuspend(pfdev->dev); + bo->is_mapped = false; } static void mmu_tlb_inv_context_s1(void *cookie) |
