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drm/i915: use consistent CPU mappings for pin_map users

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For discrete, users of pin_map() needs to obey the same rules at the TTM
backend, where we map system only objects as WB, and everything else as
WC. The simplest for now is to just force the correct mapping type as
per the new rules for discrete.

Suggested-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Ramalingam C <ramalingam.c@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210705135310.1502437-1-matthew.auld@intel.com
This commit is contained in:
Matthew Auld
2021-07-05 14:53:06 +01:00
parent ca06f93638
commit b3f450d9e1
3 changed files with 67 additions and 2 deletions
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4
drivers/gpu/drm/i915/gem/i915_gem_object.h
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@@ -12,6 +12,7 @@
#include <drm/drm_device.h>
#include "display/intel_frontbuffer.h"
#include "intel_memory_region.h"
#include "i915_gem_object_types.h"
#include "i915_gem_gtt.h"
#include "i915_gem_ww.h"
@@ -607,6 +608,9 @@ bool i915_gem_object_can_migrate(struct drm_i915_gem_object *obj,
int i915_gem_object_wait_migration(struct drm_i915_gem_object *obj,
unsigned int flags);
bool i915_gem_object_placement_possible(struct drm_i915_gem_object *obj,
enum intel_memory_type type);
#ifdef CONFIG_MMU_NOTIFIER
static inline bool
i915_gem_object_is_userptr(struct drm_i915_gem_object *obj)