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-rw-r--r--drivers/gpu/drm/i915/i915_reg.h4
-rw-r--r--drivers/gpu/drm/i915/intel_ringbuffer.c4
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 5baaef4a0c5..542453f7498 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -375,6 +375,7 @@
# define MI_FLUSH_ENABLE (1 << 11)
#define GFX_MODE 0x02520
+#define GFX_MODE_GEN7 0x0229c
#define GFX_RUN_LIST_ENABLE (1<<15)
#define GFX_TLB_INVALIDATE_ALWAYS (1<<13)
#define GFX_SURFACE_FAULT_ENABLE (1<<12)
@@ -382,6 +383,9 @@
#define GFX_PSMI_GRANULARITY (1<<10)
#define GFX_PPGTT_ENABLE (1<<9)
+#define GFX_MODE_ENABLE(bit) (((bit) << 16) | (bit))
+#define GFX_MODE_DISABLE(bit) (((bit) << 16) | (0))
+
#define SCPD0 0x0209c /* 915+ only */
#define IER 0x020a0
#define IIR 0x020a4
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 47b9b277703..c30626ea9f9 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -290,6 +290,10 @@ static int init_render_ring(struct intel_ring_buffer *ring)
if (IS_GEN6(dev) || IS_GEN7(dev))
mode |= MI_FLUSH_ENABLE << 16 | MI_FLUSH_ENABLE;
I915_WRITE(MI_MODE, mode);
+ if (IS_GEN7(dev))
+ I915_WRITE(GFX_MODE_GEN7,
+ GFX_MODE_DISABLE(GFX_TLB_INVALIDATE_ALWAYS) |
+ GFX_MODE_ENABLE(GFX_REPLAY_MODE));
}
if (INTEL_INFO(dev)->gen >= 6) {