From 075b3bbaae0d6ec99c09d2299c3632e481028542 Mon Sep 17 00:00:00 2001 From: Ben Widawsky Date: Sat, 2 Nov 2013 21:07:13 -0700 Subject: [PATCH] drm/i915/bdw: Update MI_FLUSH_DW MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The code is more verbose than necessary for the reader's sake, hopefully the compiler optimizes away the if. Reviewed-by: Ville Syrjälä Signed-off-by: Ben Widawsky Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_ringbuffer.c | 22 ++++++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 7070d734b84b..ef0e7b99ded7 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -1670,6 +1670,8 @@ static int gen6_bsd_ring_flush(struct intel_ring_buffer *ring, return ret; cmd = MI_FLUSH_DW; + if (INTEL_INFO(ring->dev)->gen >= 8) + cmd += 1; /* * Bspec vol 1c.5 - video engine command streamer: * "If ENABLED, all TLBs will be invalidated once the flush @@ -1681,8 +1683,13 @@ static int gen6_bsd_ring_flush(struct intel_ring_buffer *ring, MI_FLUSH_DW_STORE_INDEX | MI_FLUSH_DW_OP_STOREDW; intel_ring_emit(ring, cmd); intel_ring_emit(ring, I915_GEM_HWS_SCRATCH_ADDR | MI_FLUSH_DW_USE_GTT); - intel_ring_emit(ring, 0); - intel_ring_emit(ring, MI_NOOP); + if (INTEL_INFO(ring->dev)->gen >= 8) { + intel_ring_emit(ring, 0); /* upper addr */ + intel_ring_emit(ring, 0); /* value */ + } else { + intel_ring_emit(ring, 0); + intel_ring_emit(ring, MI_NOOP); + } intel_ring_advance(ring); return 0; } @@ -1764,6 +1771,8 @@ static int gen6_ring_flush(struct intel_ring_buffer *ring, return ret; cmd = MI_FLUSH_DW; + if (INTEL_INFO(ring->dev)->gen >= 8) + cmd += 1; /* * Bspec vol 1c.3 - blitter engine command streamer: * "If ENABLED, all TLBs will be invalidated once the flush @@ -1775,8 +1784,13 @@ static int gen6_ring_flush(struct intel_ring_buffer *ring, MI_FLUSH_DW_OP_STOREDW; intel_ring_emit(ring, cmd); intel_ring_emit(ring, I915_GEM_HWS_SCRATCH_ADDR | MI_FLUSH_DW_USE_GTT); - intel_ring_emit(ring, 0); - intel_ring_emit(ring, MI_NOOP); + if (INTEL_INFO(ring->dev)->gen >= 8) { + intel_ring_emit(ring, 0); /* upper addr */ + intel_ring_emit(ring, 0); /* value */ + } else { + intel_ring_emit(ring, 0); + intel_ring_emit(ring, MI_NOOP); + } intel_ring_advance(ring); if (IS_GEN7(dev) && flush) -- 2.34.1