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).
Signed-off-by: Matt Roper <[email protected]> --- drivers/gpu/drm/i915/intel_drv.h | 4 ++++ drivers/gpu/drm/i915/intel_pm.c | 6 ++++-- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index e67438f..56f4cf8 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -430,6 +430,10 @@ 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; }; diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 39ab1cb..479a890 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -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); @@ -3088,6 +3088,8 @@ skl_allocate_pipe_ddb(struct intel_crtc_state *cstate, alloc->end -= cursor_blocks; /* 1. Allocate the mininum required blocks for each active plane */ + memset(minimum, 0, sizeof(uint16_t) * I915_MAX_PLANES); + memset(y_minimum, 0, sizeof(uint16_t) * I915_MAX_PLANES); for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane) { struct drm_plane *plane = &intel_plane->base; struct drm_framebuffer *fb = plane->state->fb; -- 2.1.4 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
