From: Ville Syrj?l? <ville.syrjala at linux.intel.com>
Increase the number of fence registers to 32 on IVB/HSW. VLV however
only has 16 fence registers according to the docs.
Signed-off-by: Ville Syrj?l? <ville.syrjala at linux.intel.com>
---
drivers/gpu/drm/i915/i915_drv.h | 6 +++---
drivers/gpu/drm/i915/i915_gem.c | 4 +++-
drivers/gpu/drm/i915/i915_irq.c | 2 +-
3 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 69ddfd1..fa8ca2f 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -195,9 +195,9 @@ struct drm_i915_master_private {
struct _drm_i915_sarea *sarea_priv;
};
#define I915_FENCE_REG_NONE -1
-#define I915_MAX_NUM_FENCES 16
-/* 16 fences + sign bit for FENCE_REG_NONE */
-#define I915_MAX_NUM_FENCE_BITS 5
+#define I915_MAX_NUM_FENCES 32
+/* 32 fences + sign bit for FENCE_REG_NONE */
+#define I915_MAX_NUM_FENCE_BITS 6
struct drm_i915_fence_reg {
struct list_head lru_list;
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 63c05dd..211ce8f 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4184,7 +4184,9 @@ i915_gem_load(struct drm_device *dev)
if (!drm_core_check_feature(dev, DRIVER_MODESET))
dev_priv->fence_reg_start = 3;
- if (INTEL_INFO(dev)->gen >= 4 || IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))
+ if (INTEL_INFO(dev)->gen >= 7 && !IS_VALLEYVIEW(dev))
+ dev_priv->num_fence_regs = 32;
+ else if (INTEL_INFO(dev)->gen >= 4 || IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))
dev_priv->num_fence_regs = 16;
else
dev_priv->num_fence_regs = 8;
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index fc35d52..985d1f5 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1217,7 +1217,7 @@ static void i915_gem_record_fences(struct drm_device *dev,
switch (INTEL_INFO(dev)->gen) {
case 7:
case 6:
- for (i = 0; i < 16; i++)
+ for (i = 0; i < dev_priv->num_fence_regs; i++)
error->fence[i] = I915_READ64(FENCE_REG_SANDYBRIDGE_0 + (i * 8));
break;
case 5:
--
1.8.1.5
