Remove i915 patch, not needed on 5.4+ because i915_legacy was dropped.
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From 4a362c03025050f830f3afb107ec62d44f0299b0 Mon Sep 17 00:00:00 2001
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From: Chris Wilson <chris@chris-wilson.co.uk>
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Date: Fri, 20 Sep 2019 13:18:21 +0100
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Subject: [PATCH] drm/i915: Mark contents as dirty on a write fault
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commit b925708f28c2b7a3a362d709bd7f77bc75c1daac upstream.
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Since dropping the set-to-gtt-domain in commit a679f58d0510 ("drm/i915:
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Flush pages on acquisition"), we no longer mark the contents as dirty on
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a write fault. This has the issue of us then not marking the pages as
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dirty on releasing the buffer, which means the contents are not written
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out to the swap device (should we ever pick that buffer as a victim).
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Notably, this is visible in the dumb buffer interface used for cursors.
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Having updated the cursor contents via mmap, and swapped away, if the
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shrinker should evict the old cursor, upon next reuse, the cursor would
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be invisible.
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E.g. echo 80 > /proc/sys/kernel/sysrq ; echo f > /proc/sysrq-trigger
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Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111541
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Fixes: a679f58d0510 ("drm/i915: Flush pages on acquisition")
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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Cc: Matthew Auld <matthew.william.auld@gmail.com>
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Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
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Cc: <stable@vger.kernel.org> # v5.2+
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Reviewed-by: Matthew Auld <matthew.william.auld@gmail.com>
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Link: https://patchwork.freedesktop.org/patch/msgid/20190920121821.7223-1-chris@chris-wilson.co.uk
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(cherry picked from commit 5028851cdfdf78dc22eacbc44a0ab0b3f599ee4a)
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Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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---
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drivers/gpu/drm/i915_legacy/i915_gem.c | 6 +++++-
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1 file changed, 5 insertions(+), 1 deletion(-)
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diff --git a/drivers/gpu/drm/i915_legacy/i915_gem.c b/drivers/gpu/drm/i915_legacy/i915_gem.c
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index ad01c92aaf74..3c4e41a837b5 100644
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--- a/drivers/gpu/drm/i915_legacy/i915_gem.c
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+++ b/drivers/gpu/drm/i915_legacy/i915_gem.c
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@@ -1908,7 +1908,11 @@ vm_fault_t i915_gem_fault(struct vm_fault *vmf)
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list_add(&obj->userfault_link, &dev_priv->mm.userfault_list);
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GEM_BUG_ON(!obj->userfault_count);
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- i915_vma_set_ggtt_write(vma);
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+ if (write) {
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+ GEM_BUG_ON(!i915_gem_object_has_pinned_pages(obj));
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+ i915_vma_set_ggtt_write(vma);
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+ obj->mm.dirty = true;
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+ }
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err_fence:
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i915_vma_unpin_fence(vma);
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--
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2.23.0
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@ -87,7 +87,6 @@ Patch5: %{surface_source}/%{kernel_patches}/0006-surface-lte.patch
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Patch6: %{surface_source}/%{kernel_patches}/0007-wifi.patch
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Patch100: 0001-Add-secureboot-pre-signing-to-the-kernel.patch
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Patch101: 0002-drm-i915-Mark-contents-as-dirty-on-a-write-fault.patch
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ExclusiveArch: x86_64
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