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author | Josh Boyer <jwboyer@fedoraproject.org> | 2016-07-05 12:18:02 -0400 |
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committer | Josh Boyer <jwboyer@fedoraproject.org> | 2016-07-05 12:18:02 -0400 |
commit | 090355101563f8b7fda5582b5407d6ea342a4930 (patch) | |
tree | 390639740c0996452b5d7ff4bc4b3e583377243d /0013-drm-i915-gen9-Use-a-bitmask-to-track-dirty-pipe-wate.patch | |
parent | 9759d1d73d53e21471a45ccc49926c63b5e5b62a (diff) | |
download | kernel-090355101563f8b7fda5582b5407d6ea342a4930.tar.gz kernel-090355101563f8b7fda5582b5407d6ea342a4930.tar.xz kernel-090355101563f8b7fda5582b5407d6ea342a4930.zip |
Linux v4.6.3
- CVE-2016-6130 s390x race condition in sclp leads to info leak (rhbz 1352558 1352559)
Diffstat (limited to '0013-drm-i915-gen9-Use-a-bitmask-to-track-dirty-pipe-wate.patch')
-rw-r--r-- | 0013-drm-i915-gen9-Use-a-bitmask-to-track-dirty-pipe-wate.patch | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/0013-drm-i915-gen9-Use-a-bitmask-to-track-dirty-pipe-wate.patch b/0013-drm-i915-gen9-Use-a-bitmask-to-track-dirty-pipe-wate.patch new file mode 100644 index 000000000..959860f95 --- /dev/null +++ b/0013-drm-i915-gen9-Use-a-bitmask-to-track-dirty-pipe-wate.patch @@ -0,0 +1,91 @@ +From b43247a865f73fa3b73a878236b5055bfb864169 Mon Sep 17 00:00:00 2001 +From: Fedora Kernel Team <kernel-team@fedoraproject.org> +Date: Mon, 20 Jun 2016 12:41:23 +0200 +Subject: [PATCH 13/17] drm/i915/gen9: Use a bitmask to track dirty pipe + watermarks + +Upstream: since drm-intel-next-2016-05-22 +commit 2b4b9f35d94b1b533bc23110b040b04316480b28 + +Author: Matt Roper <matthew.d.roper@intel.com> +AuthorDate: Thu May 12 07:06:07 2016 -0700 +Commit: Matt Roper <matthew.d.roper@intel.com> +CommitDate: Fri May 13 07:34:40 2016 -0700 + + 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 237df9f..67c76b6 100644 +--- a/drivers/gpu/drm/i915/i915_drv.h ++++ b/drivers/gpu/drm/i915/i915_drv.h +@@ -1615,7 +1615,7 @@ 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 cd29ab6..611c5a1 100644 +--- a/drivers/gpu/drm/i915/intel_pm.c ++++ b/drivers/gpu/drm/i915/intel_pm.c +@@ -3455,7 +3455,7 @@ 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]); +@@ -3680,7 +3680,7 @@ 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); + } + } + +@@ -3783,7 +3783,7 @@ 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); + +@@ -3791,7 +3791,7 @@ 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); +@@ -3952,7 +3952,7 @@ 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 + |