From d032ca43f2c80049ce5aabd3f208dc3849359497 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris.p.wilson@linux.intel.com>
Date: Thu, 16 Mar 2023 17:59:18 +0100
Subject: [PATCH] drm/i915/gem: Flush lmem contents after construction
Git-commit: d032ca43f2c80049ce5aabd3f208dc3849359497
Patch-mainline: v6.3-rc5
Alt-commit: e2ee10474ce766686e7a7496585cdfaf79e3a1bf
References: git-fixes

i915_gem_object_create_lmem_from_data() lacks the flush of the data
written to lmem to ensure the object is marked as dirty and the writes
flushed to the backing store. Once created, we can immediately release
the obj->mm.mapping caching of the vmap.

Fixes: 7acbbc7cf485 ("drm/i915/guc: put all guc objects in lmem when available")
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Andi Shyti <andi.shyti@linux.intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: Chris Wilson <chris.p.wilson@linux.intel.com>
Cc: <stable@vger.kernel.org> # v5.16+
Signed-off-by: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230316165918.13074-1-nirmoy.das@intel.com
(cherry picked from commit e2ee10474ce766686e7a7496585cdfaf79e3a1bf)

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/gpu/drm/i915/gem/i915_gem_lmem.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_lmem.c b/drivers/gpu/drm/i915/gem/i915_gem_lmem.c
index 8949fb0a944f..3198b64ad7db 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_lmem.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_lmem.c
@@ -127,7 +127,8 @@ i915_gem_object_create_lmem_from_data(struct drm_i915_private *i915,
 
 	memcpy(map, data, size);
 
-	i915_gem_object_unpin_map(obj);
+	i915_gem_object_flush_map(obj);
+	__i915_gem_object_release_map(obj);
 
 	return obj;
 }
-- 
2.35.3