diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dsb.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dsb.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c b/drivers/gpu/drm/i915/display/intel_dsb.c index c4affcb216fd..fc9c3e41c333 100644 --- a/drivers/gpu/drm/i915/display/intel_dsb.c +++ b/drivers/gpu/drm/i915/display/intel_dsb.c @@ -9,6 +9,36 @@ #include "i915_drv.h" #include "intel_de.h" #include "intel_display_types.h" +#include "intel_dsb.h" + +struct i915_vma; + +enum dsb_id { + INVALID_DSB = -1, + DSB1, + DSB2, + DSB3, + MAX_DSB_PER_PIPE +}; + +struct intel_dsb { + enum dsb_id id; + u32 *cmd_buf; + struct i915_vma *vma; + + /* + * free_pos will point the first free entry position + * and help in calculating tail of command buffer. + */ + int free_pos; + + /* + * ins_start_offset will help to store start address of the dsb + * instuction and help in identifying the batch of auto-increment + * register. + */ + u32 ins_start_offset; +}; #define DSB_BUF_SIZE (2 * PAGE_SIZE) |