From 871918dffefc594e765cc7e885a36a7fd3f38da7 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon, 24 Jun 2019 15:16:30 +0100
Subject: drm/i915/gem: Clear read/write domains for GPU clear
Git-commit: 871918dffefc594e765cc7e885a36a7fd3f38da7
Patch-mainline: v5.4-rc1
References: bsc#1152489
Update the domains for the write via the GPU so that we do not
shortcircuit any set-domain clflush afterwards.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110978
Fixes: b2dbf8d982a4 ("drm/i915/blt: Remove recursive vma->lock")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190624141630.11015-1-chris@chris-wilson.co.uk
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/i915/gem/i915_gem_client_blt.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_client_blt.c b/drivers/gpu/drm/i915/gem/i915_gem_client_blt.c
index 9b01c3b5b31d..6f537e8e4dea 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_client_blt.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_client_blt.c
@@ -162,11 +162,12 @@ static void clear_pages_worker(struct work_struct *work)
goto out_signal;
if (obj->cache_dirty) {
- obj->write_domain = 0;
if (i915_gem_object_has_struct_page(obj))
drm_clflush_sg(w->sleeve->pages);
obj->cache_dirty = false;
}
+ obj->read_domains = I915_GEM_GPU_DOMAINS;
+ obj->write_domain = 0;
/* XXX: we need to kill this */
mutex_lock(&i915->drm.struct_mutex);
--
2.28.0