Re: [Intel-gfx] [PATCH 1/7] drm/i915/bdw: Always issue a force restore

2014-08-05 Thread Daniel Vetter
On Mon, Aug 04, 2014 at 06:20:00PM -0700, Ben Widawsky wrote:
 On Mon, Aug 04, 2014 at 11:15:13AM -0700, Rodrigo Vivi wrote:
  From: Ben Widawsky benjamin.widaw...@intel.com
  
  The PDPs seem to get screwed up otherwise, specifically PDP0. I am not
  really clear why this is required, it just works with full PPGTT.
  
  v2: Only do it for gen8, to limit regression potential
  
  v3: Fix the bugzilla links
  
  Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78891
  Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78935
  Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78936
  Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78937
  Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78938
  
  Signed-off-by: Ben Widawsky b...@bwidawsk.net
  Signed-off-by: Rodrigo Vivi rodrigo.v...@intel.com
 
 Hi Rodrigo. This patch  was superseded by my [partially merged] series
 here:
 http://lists.freedesktop.org/archives/intel-gfx/2014-July/048311.html
 
 In that series I went through very thoroughly with design why we need to
 do this, and verified those patches do address this issue.
 
 So yeah, NAK from me - and please get those reworked or merged or
 whatever.

Iirc I've stopped merging on that series since it mixes up gen8 specific
fixes with generic ppgtt fixes. Specifically for the ppgtt_release issues
we now have a patch (plus fixups) which is almost ready (just stalling for
review). Can you pls go through that series with Rodrigo so that he knows
which parts are the gen8 fixes?

Thanks, Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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[Intel-gfx] [PATCH 1/7] drm/i915/bdw: Always issue a force restore

2014-08-04 Thread Rodrigo Vivi
From: Ben Widawsky benjamin.widaw...@intel.com

The PDPs seem to get screwed up otherwise, specifically PDP0. I am not
really clear why this is required, it just works with full PPGTT.

v2: Only do it for gen8, to limit regression potential

v3: Fix the bugzilla links

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78891
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78935
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78936
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78937
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78938

Signed-off-by: Ben Widawsky b...@bwidawsk.net
Signed-off-by: Rodrigo Vivi rodrigo.v...@intel.com
---
 drivers/gpu/drm/i915/i915_gem_context.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_gem_context.c 
b/drivers/gpu/drm/i915/i915_gem_context.c
index 3b99390..56f7b1e 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -586,6 +586,9 @@ mi_set_context(struct intel_engine_cs *ring,
else
intel_ring_emit(ring, MI_NOOP);
 
+   if (INTEL_INFO(ring-dev)-gen == 8)
+   hw_flags |= MI_FORCE_RESTORE;
+
intel_ring_emit(ring, MI_NOOP);
intel_ring_emit(ring, MI_SET_CONTEXT);
intel_ring_emit(ring, 
i915_gem_obj_ggtt_offset(new_context-legacy_hw_ctx.rcs_state) |
-- 
1.9.3

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Re: [Intel-gfx] [PATCH 1/7] drm/i915/bdw: Always issue a force restore

2014-08-04 Thread Ben Widawsky
On Mon, Aug 04, 2014 at 11:15:13AM -0700, Rodrigo Vivi wrote:
 From: Ben Widawsky benjamin.widaw...@intel.com
 
 The PDPs seem to get screwed up otherwise, specifically PDP0. I am not
 really clear why this is required, it just works with full PPGTT.
 
 v2: Only do it for gen8, to limit regression potential
 
 v3: Fix the bugzilla links
 
 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78891
 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78935
 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78936
 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78937
 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78938
 
 Signed-off-by: Ben Widawsky b...@bwidawsk.net
 Signed-off-by: Rodrigo Vivi rodrigo.v...@intel.com

Hi Rodrigo. This patch  was superseded by my [partially merged] series
here:
http://lists.freedesktop.org/archives/intel-gfx/2014-July/048311.html

In that series I went through very thoroughly with design why we need to
do this, and verified those patches do address this issue.

So yeah, NAK from me - and please get those reworked or merged or
whatever.

Thanks

[snip]


-- 
Ben Widawsky, Intel Open Source Technology Center
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