drm/i915: Start passing around i915_vma from execbuffer

During execbuffer we look up the i915_vma in order to reserve them in
the VM. However, we then do a double lookup of the vma in order to then
pin them, all because we lack the necessary interfaces to operate on
i915_vma - so introduce i915_vma_pin()!

v2: Tidy parameter lists to remove one level of redirection in the hot
path.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1470324762-2545-15-git-send-email-chris@chris-wilson.co.uk

1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index eee22fc..c63cc1b 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -609,6 +609,20 @@ i915_ggtt_view_equal(const struct i915_ggtt_view *a,
 	return true;
 }
 
+int __must_check
+i915_vma_pin(struct i915_vma *vma, u64 size, u64 alignment, u64 flags);
+/* Flags used by pin/bind&friends. */
+#define PIN_MAPPABLE		BIT(0)
+#define PIN_NONBLOCK		BIT(1)
+#define PIN_GLOBAL		BIT(2)
+#define PIN_OFFSET_BIAS		BIT(3)
+#define PIN_USER		BIT(4)
+#define PIN_UPDATE		BIT(5)
+#define PIN_ZONE_4G		BIT(6)
+#define PIN_HIGH		BIT(7)
+#define PIN_OFFSET_FIXED	BIT(8)
+#define PIN_OFFSET_MASK		(~4095)
+
 static inline int i915_vma_pin_count(const struct i915_vma *vma)
 {
 	return vma->pin_count;