In preparation to having a context per process, etnaviv_gem_mapping_get
should not use the current GPU context, but needs to be told which
context to use.
Signed-off-by: Lucas Stach <l.st...@pengutronix.de>
---
drivers/gpu/drm/etnaviv/etnaviv_gem.c | 20 ++++++++++++--------
drivers/gpu/drm/etnaviv/etnaviv_gem.h | 3 ++-
drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c | 2 +-
3 files changed, 15 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
index e1815058d5fc..5fee0bb145c8 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
@@ -248,7 +248,8 @@ void etnaviv_gem_mapping_unreference(struct
etnaviv_vram_mapping *mapping)
}
struct etnaviv_vram_mapping *etnaviv_gem_mapping_get(
- struct drm_gem_object *obj, struct etnaviv_gpu *gpu)
+ struct drm_gem_object *obj, struct etnaviv_gpu *gpu,
+ struct etnaviv_iommu_context *mmu)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
struct etnaviv_vram_mapping *mapping;
@@ -256,7 +257,7 @@ struct etnaviv_vram_mapping *etnaviv_gem_mapping_get(
int ret = 0;
mutex_lock(&etnaviv_obj->lock);
- mapping = etnaviv_gem_get_vram_mapping(etnaviv_obj, gpu->mmu);
+ mapping = etnaviv_gem_get_vram_mapping(etnaviv_obj, mmu);
if (mapping) {
/*
* Holding the object lock prevents the use count changing
@@ -265,12 +266,12 @@ struct etnaviv_vram_mapping *etnaviv_gem_mapping_get(
* the MMU owns this mapping to close this race.
*/
if (mapping->use == 0) {
- mutex_lock(&gpu->mmu->lock);
- if (mapping->context == gpu->mmu)
+ mutex_lock(&mmu->lock);
+ if (mapping->context == mmu)
mapping->use += 1;
else
mapping = NULL;
- mutex_unlock(&gpu->mmu->lock);
+ mutex_unlock(&mmu->lock);
if (mapping)
goto out;
} else {
@@ -303,10 +304,11 @@ struct etnaviv_vram_mapping *etnaviv_gem_mapping_get(
list_del(&mapping->obj_node);
}
- mapping->context = gpu->mmu;
+ etnaviv_iommu_context_get(mmu);
+ mapping->context = mmu;
mapping->use = 1;
- ret = etnaviv_iommu_map_gem(gpu->mmu, etnaviv_obj, gpu->memory_base,
+ ret = etnaviv_iommu_map_gem(mmu, etnaviv_obj, gpu->memory_base,
mapping);
if (ret < 0)
kfree(mapping);
@@ -529,8 +531,10 @@ 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);
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.h
b/drivers/gpu/drm/etnaviv/etnaviv_gem.h
index 5a004d5e4eaa..36486254a3d3 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem.h
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.h
@@ -119,7 +119,8 @@ struct page **etnaviv_gem_get_pages(struct
etnaviv_gem_object *obj);
void etnaviv_gem_put_pages(struct etnaviv_gem_object *obj);
struct etnaviv_vram_mapping *etnaviv_gem_mapping_get(
- struct drm_gem_object *obj, struct etnaviv_gpu *gpu);
+ struct drm_gem_object *obj, struct etnaviv_gpu *gpu,
+ struct etnaviv_iommu_context *mmu);
void etnaviv_gem_mapping_unreference(struct etnaviv_vram_mapping *mapping);
#endif /* __ETNAVIV_GEM_H__ */
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
index 3f4f6ab388de..267ff5863e5d 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
@@ -224,7 +224,7 @@ static int submit_pin_objects(struct etnaviv_gem_submit
*submit)
struct etnaviv_vram_mapping *mapping;
mapping = etnaviv_gem_mapping_get(&etnaviv_obj->base,
- submit->gpu);
+ submit->gpu,
submit->gpu->mmu);
if (IS_ERR(mapping)) {
ret = PTR_ERR(mapping);
break;
--
2.20.1
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