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radeon: don't map/unmap explicitly. 

This caches the mapping and just use mapping as a sync point
main
Dave Airlie 2009-08-01 16:47:24 +10:00
parent 5a73f066ba
commit 322cf6cf73
1 changed files with 14 additions and 5 deletions
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19
libdrm/radeon/radeon_bo_gem.c
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@ -49,6 +49,7 @@ struct radeon_bo_gem {
struct radeon_bo base;
uint32_t name;
int map_count;
void *priv_ptr;
};
struct bo_manager_gem {
@ -130,8 +131,8 @@ static struct radeon_bo *bo_unref(struct radeon_bo *bo)
if (bo->cref) {
return bo;
}
if (bo_gem->map_count) {
munmap(bo->ptr, bo->size);
if (bo_gem->priv_ptr) {
munmap(bo_gem->priv_ptr, bo->size);
}
/* close object */
@ -152,6 +153,14 @@ static int bo_map(struct radeon_bo *bo, int write)
if (bo_gem->map_count++ != 0) {
return 0;
}
if (bo_gem->priv_ptr) {
r = bo_wait(bo);
bo->ptr = bo_gem->priv_ptr;
if (r)
return r;
return 0;
}
bo->ptr = NULL;
args.handle = bo->handle;
args.offset = 0;
@ -168,8 +177,8 @@ static int bo_map(struct radeon_bo *bo, int write)
ptr = mmap(0, args.size, PROT_READ|PROT_WRITE, MAP_SHARED, bo->bom->fd, args.addr_ptr);
if (ptr == MAP_FAILED)
return -errno;
bo->ptr = ptr;
bo_gem->priv_ptr = ptr;
bo->ptr = bo_gem->priv_ptr;
return r;
}
@ -180,7 +189,7 @@ static int bo_unmap(struct radeon_bo *bo)
if (--bo_gem->map_count > 0) {
return 0;
}
munmap(bo->ptr, bo->size);
//munmap(bo->ptr, bo->size);
bo->ptr = NULL;
return 0;
}