static void *
i915_drm_buffer_map(struct i915_winsys *iws,
struct i915_winsys_buffer *buffer,
boolean write)
{
struct i915_drm_buffer *buf = i915_drm_buffer(buffer);
drm_intel_bo *bo = intel_bo(buffer);
int ret = 0;
assert(bo);
if (buf->map_count)
goto out;
ret = drm_intel_gem_bo_map_gtt(bo);
buf->ptr = bo->virtual;
assert(ret == 0);
out:
if (ret)
return NULL;
buf->map_count++;
return buf->ptr;
}
static void
intel_be_batch_reloc(struct i915_winsys *sws,
struct pipe_buffer *buf,
unsigned access_flags,
unsigned delta)
{
struct intel_be_context *intel = intel_be_context(sws);
drm_intel_bo *bo = intel_bo(buf);
int ret;
uint32_t read = 0;
uint32_t write = 0;
if (access_flags & I915_BUFFER_ACCESS_WRITE) {
write = I915_GEM_DOMAIN_RENDER;
read = I915_GEM_DOMAIN_RENDER;
}
if (access_flags & I915_BUFFER_ACCESS_READ) {
read |= I915_GEM_DOMAIN_VERTEX;
}
ret = intel_be_offset_relocation(intel->batch,
delta,
bo,
read,
write);
assert(ret == 0);
/* TODO change return type */
/* return ret; */
}
static void
i915_drm_buffer_unmap(struct i915_winsys *iws,
struct i915_winsys_buffer *buffer)
{
struct i915_drm_buffer *buf = i915_drm_buffer(buffer);
if (--buf->map_count)
return;
drm_intel_gem_bo_unmap_gtt(intel_bo(buffer));
}
static void
i915_drm_buffer_destroy(struct i915_winsys *iws,
struct i915_winsys_buffer *buffer)
{
drm_intel_bo_unreference(intel_bo(buffer));
#ifdef DEBUG
i915_drm_buffer(buffer)->magic = 0;
i915_drm_buffer(buffer)->bo = NULL;
#endif
FREE(buffer);
}
