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path: root/drivers/char/drm/via_drm.h
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Diffstat (limited to 'drivers/char/drm/via_drm.h')
-rw-r--r--drivers/char/drm/via_drm.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/char/drm/via_drm.h b/drivers/char/drm/via_drm.h
index 47f0b5b2637..e4ee97d7156 100644
--- a/drivers/char/drm/via_drm.h
+++ b/drivers/char/drm/via_drm.h
@@ -250,6 +250,12 @@ typedef struct drm_via_blitsync {
unsigned engine;
} drm_via_blitsync_t;
+/* - * Below,"flags" is currently unused but will be used for possible future
+ * extensions like kernel space bounce buffers for bad alignments and
+ * blit engine busy-wait polling for better latency in the absence of
+ * interrupts.
+ */
+
typedef struct drm_via_dmablit {
uint32_t num_lines;
uint32_t line_length;
@@ -260,7 +266,7 @@ typedef struct drm_via_dmablit {
unsigned char *mem_addr;
uint32_t mem_stride;
- int bounce_buffer;
+ uint32_t flags;
int to_fb;
drm_via_blitsync_t sync;