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drm/etnaviv: split out cmdbuf mapping into address space

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This allows to decouple the cmdbuf suballocator create and mapping
the region into the GPU address space. Allowing multiple AS to share
a single cmdbuf suballoc.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Guido Günther <agx@sigxcpu.org>
This commit is contained in:
Lucas Stach
2019-07-05 19:17:21 +02:00
parent db41fe7d2f
commit db82a0435b
8 changed files with 117 additions and 69 deletions
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11
drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h
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@@ -9,6 +9,8 @@
#include <linux/types.h>
struct etnaviv_gpu;
struct etnaviv_iommu;
struct etnaviv_vram_mapping;
struct etnaviv_cmdbuf_suballoc;
struct etnaviv_perfmon_request;
@@ -25,13 +27,20 @@ struct etnaviv_cmdbuf {
struct etnaviv_cmdbuf_suballoc *
etnaviv_cmdbuf_suballoc_new(struct etnaviv_gpu * gpu);
void etnaviv_cmdbuf_suballoc_destroy(struct etnaviv_cmdbuf_suballoc *suballoc);
int etnaviv_cmdbuf_suballoc_map(struct etnaviv_cmdbuf_suballoc *suballoc,
struct etnaviv_iommu *mmu,
struct etnaviv_vram_mapping *mapping,
u32 memory_base);
void etnaviv_cmdbuf_suballoc_unmap(struct etnaviv_iommu *mmu,
struct etnaviv_vram_mapping *mapping);
int etnaviv_cmdbuf_init(struct etnaviv_cmdbuf_suballoc *suballoc,
struct etnaviv_cmdbuf *cmdbuf, u32 size);
void etnaviv_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf);
u32 etnaviv_cmdbuf_get_va(struct etnaviv_cmdbuf *buf);
u32 etnaviv_cmdbuf_get_va(struct etnaviv_cmdbuf *buf,
struct etnaviv_vram_mapping *mapping);
dma_addr_t etnaviv_cmdbuf_get_pa(struct etnaviv_cmdbuf *buf);
#endif /* __ETNAVIV_CMDBUF_H__ */