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drm/i915/gen9: Store plane minimum blocks in CRTC wm state (v2) 

This will eventually allow us to re-use old values without
re-calculating them for unchanged planes (which also helps us avoid
re-grabbing extra plane states).

v2:
 -  Drop unnecessary memset's; they were meant for a later patch (which
    got reworked anyway to not need them, but were mis-rebased into this
    one.  (Maarten)

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1463061971-19638-6-git-send-email-matthew.d.roper@intel.com
This commit is contained in:
Matt Roper 2016-05-12 07:05:59 -07:00
parent 9c74d82621
commit 86a2100a8b
2 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/i915/intel_drv.h
View File

@ -431,6 +431,10 @@ struct intel_crtc_wm_state {
/* cached plane data rate */
unsigned plane_data_rate[I915_MAX_PLANES];
unsigned plane_y_data_rate[I915_MAX_PLANES];
/* minimum block allocation */
uint16_t minimum_blocks[I915_MAX_PLANES];
uint16_t minimum_y_blocks[I915_MAX_PLANES];
} skl;
};

4
drivers/gpu/drm/i915/intel_pm.c
View File

@ -3067,8 +3067,8 @@ skl_allocate_pipe_ddb(struct intel_crtc_state *cstate,
enum pipe pipe = intel_crtc->pipe;
struct skl_ddb_entry *alloc = &ddb->pipe[pipe];
uint16_t alloc_size, start, cursor_blocks;
uint16_t minimum[I915_MAX_PLANES];
uint16_t y_minimum[I915_MAX_PLANES];
uint16_t *minimum = cstate->wm.skl.minimum_blocks;
uint16_t *y_minimum = cstate->wm.skl.minimum_y_blocks;
unsigned int total_data_rate;
skl_ddb_get_pipe_allocation_limits(dev, cstate, config, alloc);