From: Ville Syrjälä <[email protected]> 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 Syrjälä <[email protected]> --- 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 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
