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-rw-r--r--kernels/linux-libre-grsec-knock/0001-drm-i915-Dont-enable-CS_PARSER_ERROR-interrupts-at-all.patch66
-rw-r--r--kernels/linux-libre-grsec-knock/PKGBUILD8
2 files changed, 73 insertions, 1 deletions
diff --git a/kernels/linux-libre-grsec-knock/0001-drm-i915-Dont-enable-CS_PARSER_ERROR-interrupts-at-all.patch b/kernels/linux-libre-grsec-knock/0001-drm-i915-Dont-enable-CS_PARSER_ERROR-interrupts-at-all.patch
new file mode 100644
index 000000000..4e801b3cc
--- /dev/null
+++ b/kernels/linux-libre-grsec-knock/0001-drm-i915-Dont-enable-CS_PARSER_ERROR-interrupts-at-all.patch
@@ -0,0 +1,66 @@
+From b27b2ff4bd6f0327ee550baa0397ccf0a559821f Mon Sep 17 00:00:00 2001
+From: Daniel Vetter <daniel.vetter@ffwll.ch>
+Date: Wed, 1 Apr 2015 13:40:48 +0200
+Subject: [PATCH] drm/i915: Dont enable CS_PARSER_ERROR interrupts at all
+
+We stopped handling them in
+
+commit aaecdf611a05cac26a94713bad25297e60225c29
+Author: Daniel Vetter <daniel.vetter@ffwll.ch>
+Date: Tue Nov 4 15:52:22 2014 +0100
+
+ drm/i915: Stop gathering error states for CS error interrupts
+
+but just clearing is apparently not enough: A sufficiently dead gpu
+left behind by firmware (*cough* coreboot *cough*) can keep the gpu in
+an endless loop of such interrupts, eventually leading to the nmi
+firing. And definitely to what looks like a machine hang.
+
+Since we don't even enable these interrupts on gen5+ let's do the same
+on earlier platforms.
+
+Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=93171
+Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
+---
+ drivers/gpu/drm/i915/i915_irq.c | 8 ++------
+ 1 file changed, 2 insertions(+), 6 deletions(-)
+
+diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
+index 14ecb4d13a1a..6d494432b19f 100644
+--- a/drivers/gpu/drm/i915/i915_irq.c
++++ b/drivers/gpu/drm/i915/i915_irq.c
+@@ -3598,14 +3598,12 @@ static int i8xx_irq_postinstall(struct drm_device *dev)
+ ~(I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
+ I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |
+ I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT |
+- I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT |
+- I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT);
++ I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT);
+ I915_WRITE16(IMR, dev_priv->irq_mask);
+
+ I915_WRITE16(IER,
+ I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
+ I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |
+- I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT |
+ I915_USER_INTERRUPT);
+ POSTING_READ16(IER);
+
+@@ -3767,14 +3765,12 @@ static int i915_irq_postinstall(struct drm_device *dev)
+ I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
+ I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |
+ I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT |
+- I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT |
+- I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT);
++ I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT);
+
+ enable_mask =
+ I915_ASLE_INTERRUPT |
+ I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
+ I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |
+- I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT |
+ I915_USER_INTERRUPT;
+
+ if (I915_HAS_HOTPLUG(dev)) {
+--
+2.1.4
+
diff --git a/kernels/linux-libre-grsec-knock/PKGBUILD b/kernels/linux-libre-grsec-knock/PKGBUILD
index c5fb0c79a..5ca3fa25f 100644
--- a/kernels/linux-libre-grsec-knock/PKGBUILD
+++ b/kernels/linux-libre-grsec-knock/PKGBUILD
@@ -24,7 +24,7 @@ _replacesoldmodules=() # '%' gets replaced with _kernelname
_srcname=linux-${_pkgbasever%-*}
_archpkgver=${_pkgver%-*}.${_timestamp}
pkgver=${_pkgver//-/_}.${_timestamp}
-pkgrel=1
+pkgrel=1.1
arch=('i686' 'x86_64' 'mips64el')
url="https://wiki.parabola.nu/Grsecurity%2BKnock"
license=('GPL2')
@@ -44,6 +44,7 @@ source=("http://linux-libre.fsfla.org/pub/linux-libre/releases/${_pkgbasever}/li
'linux.preset'
'logo_linux_'{clut224.ppm,vga16.ppm,mono.pbm}
'change-default-console-loglevel.patch'
+ '0001-drm-i915-Dont-enable-CS_PARSER_ERROR-interrupts-at-all.patch'
# loongson-community patch: http://linux-libre.fsfla.org/pub/linux-libre/lemote/gnewsense/pool/debuginfo/
# Note: Makefile patching was removed due which we are using specific flags from grsecurity patch
'3.19-d230a5811d-loongson-community.patch')
@@ -63,6 +64,7 @@ sha256sums=('2a60ec99ae498e7cdafac63ecca1c0ca07643eaa6c9a1a83f19e4daa3e75b9d9'
'6de8a8319271809ffdb072b68d53d155eef12438e6d04ff06a5a4db82c34fa8a'
'13bd7a8d9ed6b6bc971e4cd162262c5a20448a83796af39ce394d827b0e5de74'
'1256b241cd477b265a3c2d64bdc19ffe3c9bbcee82ea3994c590c2c76e767d99'
+ '66cb2d859b253bc4e793baa3c0b95523d647a773b957dbc79b3eaacccf8692b5'
'bbb03bc36982b37ff51ac1314e8ba4d01ad6416b032a18afd5eb3bb05caa4914')
validpgpkeys=(
'474402C8C582DAFBE389C427BCB7CF877E7D47A7' # Alexandre Oliva
@@ -107,6 +109,10 @@ prepare() {
# (relevant patch sent upstream: https://lkml.org/lkml/2011/7/26/227)
patch -p1 -i "${srcdir}/change-default-console-loglevel.patch"
+ # drm/i915: Stop gathering error states for CS error interrupts
+ # https://bugzilla.kernel.org/show_bug.cgi?id=93171
+ patch -p1 -i "${srcdir}/0001-drm-i915-Dont-enable-CS_PARSER_ERROR-interrupts-at-all.patch"
+
# Adding loongson-community patch
if [ "${CARCH}" == "mips64el" ]; then
patch -p1 -i ${srcdir}/3.19-d230a5811d-loongson-community.patch