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drm: etnaviv: clean up vram_mapping submission/retire path

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Currently, we scan the list of mappings each time we want to operate on
the vram_mapping struct.  Rather than repeatedly scanning these, look
them up once in the submission path, and then use _reference and
_unreference methods as necessary to manage this object.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
This commit is contained in:
Russell King
2016-01-21 15:20:50 +00:00
committed by Lucas Stach
parent 41db12df64
commit b6325f4099
7 changed files with 57 additions and 43 deletions
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6
drivers/gpu/drm/etnaviv/etnaviv_gem.h
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@@ -102,6 +102,7 @@ struct etnaviv_gem_submit {
struct {
u32 flags;
struct etnaviv_gem_object *obj;
struct etnaviv_vram_mapping *mapping;
u32 iova;
} bos[0];
};
@@ -115,4 +116,9 @@ int etnaviv_gem_obj_add(struct drm_device *dev, struct drm_gem_object *obj);
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);
void etnaviv_gem_mapping_reference(struct etnaviv_vram_mapping *mapping);
void etnaviv_gem_mapping_unreference(struct etnaviv_vram_mapping *mapping);
#endif /* __ETNAVIV_GEM_H__ */