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From f28225dda2a2bf1e2d96bbe44b45d43a7d5071d3 Mon Sep 17 00:00:00 2001
From: Matt Roper <matthew.d.roper@intel.com>
Date: Thu, 12 May 2016 07:05:59 -0700
Subject: [PATCH 05/17] 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
---
drivers/gpu/drm/i915/intel_drv.h | 4 ++++
drivers/gpu/drm/i915/intel_pm.c | 4 ++--
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 6a95696..9308cff 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -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;
};
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 5104ba7..6c7a048 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);
--
2.7.4
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