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authorDave Airlie <airlied@redhat.com>2022-05-17 12:19:24 +1000
committerDave Airlie <airlied@redhat.com>2022-05-17 12:20:04 +1000
commitf8122500a039abeabfff41b0ad8b6a2c94c1107d (patch)
tree9e0ea71a7927fc2b9fbd0f8c37c2a11df4b546db /drivers/gpu/drm/etnaviv/etnaviv_gem.c
parent5756c29bfa816dfde24e0719002d225ab96a0cd6 (diff)
parent2829a9fcb738f742baad9d15de4c6eac84bcfd08 (diff)
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Merge branch 'etnaviv/next' of https://git.pengutronix.de/git/lst/linux into drm-next
fix address space collisions in some edge cases when userspace is using softpin and cleans up the MMU reference handling a bit. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Lucas Stach <l.stach@pengutronix.de> Link: https://patchwork.freedesktop.org/patch/msgid/ffae9f7d03ca7a9e00da16d5910ae810befd3c5a.camel@pengutronix.de
Diffstat (limited to 'drivers/gpu/drm/etnaviv/etnaviv_gem.c')
-rw-r--r--drivers/gpu/drm/etnaviv/etnaviv_gem.c11
1 files changed, 3 insertions, 8 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
index 507172e2780b..cc386f8a7116 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
@@ -294,18 +294,15 @@ struct etnaviv_vram_mapping *etnaviv_gem_mapping_get(
list_del(&mapping->obj_node);
}
- mapping->context = etnaviv_iommu_context_get(mmu_context);
mapping->use = 1;
ret = etnaviv_iommu_map_gem(mmu_context, etnaviv_obj,
mmu_context->global->memory_base,
mapping, va);
- if (ret < 0) {
- etnaviv_iommu_context_put(mmu_context);
+ if (ret < 0)
kfree(mapping);
- } else {
+ else
list_add_tail(&mapping->obj_node, &etnaviv_obj->vram_list);
- }
out:
mutex_unlock(&etnaviv_obj->lock);
@@ -500,10 +497,8 @@ void etnaviv_gem_free_object(struct drm_gem_object *obj)
WARN_ON(mapping->use);
- if (context) {
+ if (context)
etnaviv_iommu_unmap_gem(context, mapping);
- etnaviv_iommu_context_put(context);
- }
list_del(&mapping->obj_node);
kfree(mapping);