Commit 082a7b86 authored by Srivatsa, Anusha's avatar Srivatsa, Anusha Committed by Manasi Navare

drm/dsc: Define Rate Control values that do not change over configurations

DSC has some Rate Control values that remain constant
across all configurations. These are as per the DSC
standard.

v3:
* Define them in drm_dsc.h as they are
DSC constants (Manasi)
v2:
* Add DP_DSC_ prefix (Jani Nikula)

Cc: dri-devel@lists.freedesktop.org
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Gaurav K Singh <gaurav.k.singh@intel.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: default avatarSrivatsa, Anusha <anusha.srivatsa@intel.com>
Signed-off-by: default avatarManasi Navare <manasi.d.navare@intel.com>
Reviewed-by: default avatarManasi Navare <manasi.d.navare@intel.com>
Acked-by: Sean Paul <seanpaul@chromium.org> (For merging through
drm-intel)
Link: https://patchwork.freedesktop.org/patch/msgid/20181127214125.17658-4-manasi.d.navare@intel.com
parent 19fd5adb
...@@ -18,6 +18,12 @@ ...@@ -18,6 +18,12 @@
#define DSC_SCALE_DECREMENT_INTERVAL_MAX 4095 #define DSC_SCALE_DECREMENT_INTERVAL_MAX 4095
#define DSC_RANGE_BPG_OFFSET_MASK 0x3f #define DSC_RANGE_BPG_OFFSET_MASK 0x3f
/* DSC Rate Control Constants */
#define DSC_RC_MODEL_SIZE_CONST 8192
#define DSC_RC_EDGE_FACTOR_CONST 6
#define DSC_RC_TGT_OFFSET_HI_CONST 3
#define DSC_RC_TGT_OFFSET_LO_CONST 3
/* Configuration for a single Rate Control model range */ /* Configuration for a single Rate Control model range */
struct drm_dsc_rc_range_parameters { struct drm_dsc_rc_range_parameters {
/* Min Quantization Parameters allowed for this range */ /* Min Quantization Parameters allowed for this range */
......
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