diff options
| author | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2014-11-14 19:52:30 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-12-03 11:35:05 +0300 |
| commit | bfd7ebdac3c303ea2ee1abd781ee3fda82321a92 (patch) | |
| tree | bdf7a1d30d38635c85ff2dbb37b0d848d6595d83 /drivers/gpu/drm/i915/intel_bios.h | |
| parent | ff94456453409e013aadf0fdaa38d6dd339456f4 (diff) | |
| download | linux-bfd7ebdac3c303ea2ee1abd781ee3fda82321a92.tar.xz | |
drm/i915: Parse VBT PSR block.
PSR (aka SRD) block is defined at VBT and currently being used.
Mainly/At-least to configure the amount of idle_frames require to get
back to PSR Entry.
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_bios.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_bios.h | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_bios.h b/drivers/gpu/drm/i915/intel_bios.h index 7603765c91fc..de01167d8a51 100644 --- a/drivers/gpu/drm/i915/intel_bios.h +++ b/drivers/gpu/drm/i915/intel_bios.h @@ -80,7 +80,7 @@ struct vbios_data { #define BDB_EXT_MMIO_REGS 6 #define BDB_SWF_IO 7 #define BDB_SWF_MMIO 8 -#define BDB_DOT_CLOCK_TABLE 9 +#define BDB_PSR 9 #define BDB_MODE_REMOVAL_TABLE 10 #define BDB_CHILD_DEVICE_TABLE 11 #define BDB_DRIVER_FEATURES 12 @@ -556,6 +556,26 @@ struct bdb_edp { u16 edp_t3_optimization; } __packed; +struct psr_table { + /* Feature bits */ + u8 full_link:1; + u8 require_aux_to_wakeup:1; + u8 feature_bits_rsvd:6; + + /* Wait times */ + u8 idle_frames:4; + u8 lines_to_wait:3; + u8 wait_times_rsvd:1; + + /* TP wake up time in multiple of 100 */ + u16 tp1_wakeup_time; + u16 tp2_tp3_wakeup_time; +} __packed; + +struct bdb_psr { + struct psr_table psr_table[16]; +} __packed; + void intel_setup_bios(struct drm_device *dev); int intel_parse_bios(struct drm_device *dev); |