[Intel-gfx] [RFC 06/38] drm/i915: fix gtt_total_entries()

[Michel Thierry]

From: Ben Widawsky <benjamin.widawsky at intel.com>

It's useful to have it not as a macro for some upcoming work. Generally
since we try to avoid macros anyway, I think it doesn't hurt to put this
as its own patch.

Signed-off-by: Ben Widawsky <ben at bwidawsk.net>
Signed-off-by: Michel Thierry <michel.thierry at intel.com>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c    | 4 ++--
 drivers/gpu/drm/i915/i915_gem_gtt.h    | 8 ++++++--
 drivers/gpu/drm/i915/i915_gem_stolen.c | 2 +-
 3 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index ac0197f..f677deb 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1489,7 +1489,7 @@ static void gen8_ggtt_clear_range(struct i915_address_space *vm,
 	unsigned num_entries = length >> PAGE_SHIFT;
 	gen8_gtt_pte_t scratch_pte, __iomem *gtt_base =
 		(gen8_gtt_pte_t __iomem *) dev_priv->gtt.gsm + first_entry;
-	const int max_entries = gtt_total_entries(dev_priv->gtt) - first_entry;
+	const int max_entries = gtt_total_entries(&dev_priv->gtt) - first_entry;
 	int i;
 
 	if (WARN(num_entries > max_entries,
@@ -1515,7 +1515,7 @@ static void gen6_ggtt_clear_range(struct i915_address_space *vm,
 	unsigned num_entries = length >> PAGE_SHIFT;
 	gen6_gtt_pte_t scratch_pte, __iomem *gtt_base =
 		(gen6_gtt_pte_t __iomem *) dev_priv->gtt.gsm + first_entry;
-	const int max_entries = gtt_total_entries(dev_priv->gtt) - first_entry;
+	const int max_entries = gtt_total_entries(&dev_priv->gtt) - first_entry;
 	int i;
 
 	if (WARN(num_entries > max_entries,
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index 5fd7fa9..98427ce 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -40,8 +40,6 @@ typedef uint32_t gen6_gtt_pte_t;
 typedef uint64_t gen8_gtt_pte_t;
 typedef gen8_gtt_pte_t gen8_ppgtt_pde_t;
 
-#define gtt_total_entries(gtt) ((gtt).base.total >> PAGE_SHIFT)
-
 #define I915_PPGTT_PT_ENTRIES		(PAGE_SIZE / sizeof(gen6_gtt_pte_t))
 /* gen6-hsw has bit 11-4 for physical addr bit 39-32 */
 #define GEN6_GTT_ADDR_ENCODE(addr)	((addr) | (((addr) >> 28) & 0xff0))
@@ -284,6 +282,12 @@ int i915_ppgtt_init_hw(struct drm_device *dev);
 void i915_ppgtt_release(struct kref *kref);
 struct i915_hw_ppgtt *i915_ppgtt_create(struct drm_device *dev,
 					struct drm_i915_file_private *fpriv);
+
+static inline size_t gtt_total_entries(struct i915_gtt *gtt)
+{
+	return gtt->base.total >> PAGE_SHIFT;
+}
+
 static inline void i915_ppgtt_get(struct i915_hw_ppgtt *ppgtt)
 {
 	if (ppgtt)
diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c
index 85fda6b..4e1b22e 100644
--- a/drivers/gpu/drm/i915/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
@@ -90,7 +90,7 @@ static unsigned long i915_stolen_to_physical(struct drm_device *dev)
 				(gtt_start & PGTBL_ADDRESS_HI_MASK) << 28;
 		else
 			gtt_start &= PGTBL_ADDRESS_LO_MASK;
-		gtt_end = gtt_start + gtt_total_entries(dev_priv->gtt) * 4;
+		gtt_end = gtt_start + gtt_total_entries(&dev_priv->gtt) * 4;
 
 		if (gtt_start >= stolen[0].start && gtt_start < stolen[0].end)
 			stolen[0].end = gtt_start;
-- 
2.0.3