-Original Message-
From: Jani Nikula [mailto:jani.nik...@linux.intel.com]
Sent: Monday, August 18, 2014 9:33 AM
To: Daniel, Thomas; intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH 41/43] drm/i915/bdw: Enable Logical Ring
Contexts (hence, Execlists)
On Thu, 24 Jul 2014, Thomas Daniel thomas.dan...@intel.com wrote:
From: Oscar Mateo oscar.ma...@intel.com
The time has come, the Walrus said, to talk of many things.
FYI this causes https://bugs.freedesktop.org/show_bug.cgi?id=82740
Hmm, this seems to be an interaction between execlists and PPGTT
patches, specifically:
http://patchwork.freedesktop.org/patch/31150/
which breaks aliasing PPGTT when execlists are enabled, resulting
in this oops on boot.
I will post a patch which avoids this but I don't know if the intention
is to drop aliasing PPGTT support when execlists are enabled.
Thomas.
Signed-off-by: Oscar Mateo oscar.ma...@intel.com
---
drivers/gpu/drm/i915/i915_drv.h |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h
b/drivers/gpu/drm/i915/i915_drv.h index b7cf0ec..1ce51d6 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2061,7 +2061,7 @@ struct drm_i915_cmd_table {
#define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)-need_gfx_hws)
#define HAS_HW_CONTEXTS(dev) (INTEL_INFO(dev)-gen = 6)
-#define HAS_LOGICAL_RING_CONTEXTS(dev) 0
+#define HAS_LOGICAL_RING_CONTEXTS(dev) (INTEL_INFO(dev)-
gen = 8)
#define HAS_ALIASING_PPGTT(dev)(INTEL_INFO(dev)-gen = 6)
#define HAS_PPGTT(dev) (INTEL_INFO(dev)-gen = 7
!IS_GEN8(dev))
#define USES_PPGTT(dev)intel_enable_ppgtt(dev, false)
--
1.7.9.5
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Jani Nikula, Intel Open Source Technology Center
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