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From bb7c6f4efe65f77ba2ed3a09e6d6bc4d021a395d Mon Sep 17 00:00:00 2001
From: Matt Roper <matthew.d.roper@intel.com>
Date: Thu, 12 May 2016 07:06:07 -0700
Subject: [PATCH 13/17] drm/i915/gen9: Use a bitmask to track dirty pipe
watermarks
Slightly easier to work with than an array of bools.
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/1463061971-19638-14-git-send-email-matthew.d.roper@intel.com
---
drivers/gpu/drm/i915/i915_drv.h | 2 +-
drivers/gpu/drm/i915/intel_pm.c | 10 +++++-----
2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index b908a41..e7bde72 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1591,7 +1591,7 @@ struct skl_ddb_allocation {
};
struct skl_wm_values {
- bool dirty[I915_MAX_PIPES];
+ unsigned dirty_pipes;
struct skl_ddb_allocation ddb;
uint32_t wm_linetime[I915_MAX_PIPES];
uint32_t plane[I915_MAX_PIPES][I915_MAX_PLANES][8];
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index c9f050e..cb6b6f4 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3516,7 +3516,7 @@ static void skl_write_wm_values(struct drm_i915_private *dev_priv,
int i, level, max_level = ilk_wm_max_level(dev);
enum pipe pipe = crtc->pipe;
- if (!new->dirty[pipe])
+ if ((new->dirty_pipes & drm_crtc_mask(&crtc->base)) == 0)
continue;
I915_WRITE(PIPE_WM_LINETIME(pipe), new->wm_linetime[pipe]);
@@ -3741,7 +3741,7 @@ static void skl_update_other_pipe_wm(struct drm_device *dev,
WARN_ON(!wm_changed);
skl_compute_wm_results(dev, &pipe_wm, r, intel_crtc);
- r->dirty[intel_crtc->pipe] = true;
+ r->dirty_pipes |= drm_crtc_mask(&intel_crtc->base);
}
}
@@ -3844,7 +3844,7 @@ static void skl_update_wm(struct drm_crtc *crtc)
/* Clear all dirty flags */
- memset(results->dirty, 0, sizeof(bool) * I915_MAX_PIPES);
+ results->dirty_pipes = 0;
skl_clear_wm(results, intel_crtc->pipe);
@@ -3852,7 +3852,7 @@ static void skl_update_wm(struct drm_crtc *crtc)
return;
skl_compute_wm_results(dev, pipe_wm, results, intel_crtc);
- results->dirty[intel_crtc->pipe] = true;
+ results->dirty_pipes |= drm_crtc_mask(&intel_crtc->base);
skl_update_other_pipe_wm(dev, crtc, results);
skl_write_wm_values(dev_priv, results);
@@ -4011,7 +4011,7 @@ static void skl_pipe_wm_get_hw_state(struct drm_crtc *crtc)
if (!intel_crtc->active)
return;
- hw->dirty[pipe] = true;
+ hw->dirty_pipes |= drm_crtc_mask(crtc);
active->linetime = hw->wm_linetime[pipe];
--
2.7.4
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