diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.c | 40 |
1 files changed, 20 insertions, 20 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 21a3d69679ee..e4f17e594703 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -4222,35 +4222,35 @@ i915_gem_idle(struct drm_device *dev) return 0; } -void i915_gem_l3_remap(struct drm_device *dev, int slice) +int i915_gem_l3_remap(struct intel_ring_buffer *ring, int slice) { + struct drm_device *dev = ring->dev; drm_i915_private_t *dev_priv = dev->dev_private; u32 reg_base = GEN7_L3LOG_BASE + (slice * 0x200); u32 *remap_info = dev_priv->l3_parity.remap_info[slice]; - u32 misccpctl; - int i; + int i, ret; if (!HAS_L3_GPU_CACHE(dev) || !remap_info) - return; + return 0; - misccpctl = I915_READ(GEN7_MISCCPCTL); - I915_WRITE(GEN7_MISCCPCTL, misccpctl & ~GEN7_DOP_CLOCK_GATE_ENABLE); - POSTING_READ(GEN7_MISCCPCTL); + ret = intel_ring_begin(ring, GEN7_L3LOG_SIZE / 4 * 3); + if (ret) + return ret; + /* + * Note: We do not worry about the concurrent register cacheline hang + * here because no other code should access these registers other than + * at initialization time. + */ for (i = 0; i < GEN7_L3LOG_SIZE; i += 4) { - u32 remap = I915_READ(reg_base + i); - if (remap && remap != remap_info[i/4]) - DRM_DEBUG("0x%x was already programmed to %x\n", - reg_base + i, remap); - if (remap && !remap_info[i/4]) - DRM_DEBUG_DRIVER("Clearing remapped register\n"); - I915_WRITE(reg_base + i, remap_info[i/4]); + intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1)); + intel_ring_emit(ring, reg_base + i); + intel_ring_emit(ring, remap_info[i/4]); } - /* Make sure all the writes land before disabling dop clock gating */ - POSTING_READ(reg_base); + intel_ring_advance(ring); - I915_WRITE(GEN7_MISCCPCTL, misccpctl); + return ret; } void i915_gem_init_swizzling(struct drm_device *dev) @@ -4361,15 +4361,15 @@ i915_gem_init_hw(struct drm_device *dev) I915_WRITE(GEN7_MSG_CTL, temp); } - for (i = 0; i < NUM_L3_SLICES(dev); i++) - i915_gem_l3_remap(dev, i); - i915_gem_init_swizzling(dev); ret = i915_gem_init_rings(dev); if (ret) return ret; + for (i = 0; i < NUM_L3_SLICES(dev); i++) + i915_gem_l3_remap(&dev_priv->ring[RCS], i); + /* * XXX: There was some w/a described somewhere suggesting loading * contexts before PPGTT. |