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-rw-r--r--drivers/gpu/drm/i915/Kconfig1
-rw-r--r--drivers/gpu/drm/i915/i915_gem_gtt.c24
2 files changed, 25 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/Kconfig b/drivers/gpu/drm/i915/Kconfig
index 051eab33e4c7..fcd77b27514d 100644
--- a/drivers/gpu/drm/i915/Kconfig
+++ b/drivers/gpu/drm/i915/Kconfig
@@ -10,6 +10,7 @@ config DRM_I915
# the shmem_readpage() which depends upon tmpfs
select SHMEM
select TMPFS
+ select STOP_MACHINE
select DRM_KMS_HELPER
select DRM_PANEL
select DRM_MIPI_DSI
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 016739eefd45..4d357e18e5d1 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -24,6 +24,7 @@
*/
#include <linux/seq_file.h>
+#include <linux/stop_machine.h>
#include <drm/drmP.h>
#include <drm/i915_drm.h>
#include "i915_drv.h"
@@ -2533,6 +2534,26 @@ static int ggtt_bind_vma(struct i915_vma *vma,
return 0;
}
+struct ggtt_bind_vma__cb {
+ struct i915_vma *vma;
+ enum i915_cache_level cache_level;
+ u32 flags;
+};
+
+static int ggtt_bind_vma__cb(void *_arg)
+{
+ struct ggtt_bind_vma__cb *arg = _arg;
+ return ggtt_bind_vma(arg->vma, arg->cache_level, arg->flags);
+}
+
+static int ggtt_bind_vma__BKL(struct i915_vma *vma,
+ enum i915_cache_level cache_level,
+ u32 flags)
+{
+ struct ggtt_bind_vma__cb arg = { vma, cache_level, flags };
+ return stop_machine(ggtt_bind_vma__cb, &arg, NULL);
+}
+
static int aliasing_gtt_bind_vma(struct i915_vma *vma,
enum i915_cache_level cache_level,
u32 flags)
@@ -3000,6 +3021,9 @@ static int gen8_gmch_probe(struct drm_device *dev,
dev_priv->gtt.base.bind_vma = ggtt_bind_vma;
dev_priv->gtt.base.unbind_vma = ggtt_unbind_vma;
+ if (IS_CHERRYVIEW(dev))
+ dev_priv->gtt.base.bind_vma = ggtt_bind_vma__BKL;
+
return ret;
}