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-rw-r--r--linux-core/radeon_gem.c47
1 files changed, 42 insertions, 5 deletions
diff --git a/linux-core/radeon_gem.c b/linux-core/radeon_gem.c
index 7899490f..851a95d3 100644
--- a/linux-core/radeon_gem.c
+++ b/linux-core/radeon_gem.c
@@ -1242,21 +1242,58 @@ static int radeon_gem_ib_destroy(struct drm_device *dev)
return 0;
}
+static int radeon_gem_find_reloc(struct drm_radeon_cs_parser *parser,
+ uint32_t offset, uint32_t *handle,
+ uint32_t *read_domains, uint32_t *write_domain)
+{
+ struct drm_device *dev = parser->dev;
+ drm_radeon_private_t *dev_priv = dev->dev_private;
+ struct drm_radeon_kernel_chunk *reloc_chunk = &parser->chunks[parser->reloc_index];
+
+ if (!reloc_chunk->kdata)
+ return -EINVAL;
+
+ if (offset > reloc_chunk->length_dw){
+ DRM_ERROR("Offset larger than chunk %d %d\n", offset, reloc_chunk->length_dw);
+ return -EINVAL;
+ }
+
+ *handle = reloc_chunk->kdata[offset];
+ *read_domains = reloc_chunk->kdata[offset + 1];
+ *write_domain = reloc_chunk->kdata[offset + 2];
+ return 0;
+}
+
static int radeon_gem_relocate(struct drm_radeon_cs_parser *parser,
uint32_t *reloc, uint32_t *offset)
{
struct drm_device *dev = parser->dev;
drm_radeon_private_t *dev_priv = dev->dev_private;
/* relocate the handle */
- uint32_t read_domains = reloc[2];
- uint32_t write_domain = reloc[3];
+ uint32_t read_domains, write_domain;
struct drm_gem_object *obj;
int flags = 0;
+ int ret;
struct drm_radeon_gem_object *obj_priv;
- obj = drm_gem_object_lookup(dev, parser->file_priv, reloc[1]);
- if (!obj)
- return -EINVAL;
+ if (parser->reloc_index == -1) {
+ obj = drm_gem_object_lookup(dev, parser->file_priv, reloc[1]);
+ if (!obj)
+ return -EINVAL;
+ read_domains = reloc[2];
+ write_domain = reloc[3];
+ } else {
+ uint32_t handle;
+
+ /* have to lookup handle in other chunk */
+ ret = radeon_gem_find_reloc(parser, reloc[1], &handle, &read_domains, &write_domain);
+ if (ret < 0)
+ return ret;
+
+ obj = drm_gem_object_lookup(dev, parser->file_priv, handle);
+ if (!obj)
+ return -EINVAL;
+ }
obj_priv = obj->driver_private;
radeon_gem_set_domain(obj, read_domains, write_domain, &flags, false);