Attachment 95669 Details for Bug 76055 – drm/i915: Switch to fake context on older gens

[patch] drm/i915: Switch to fake context on older gens

0001-drm-i915-Switch-to-fake-context-on-older-gens.patch (text/plain), 1.12 KB, created by Mika Kuoppala on 2014-03-12 15:39:06 UTC

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Creator: Mika Kuoppala

Created: 2014-03-12 15:39:06 UTC

Size: 1.12 KB

patch

obsolete

>From 6574753e7d6af484c696b7bee194f1285079f179 Mon Sep 17 00:00:00 2001
>From: Mika Kuoppala <mika.kuoppala@intel.com>
>Date: Mon, 10 Mar 2014 18:51:47 +0200
>Subject: [PATCH 1/3] drm/i915: Switch to fake context on older gens
>
>We have fake context, for hang_stats, in file_priv.
>If we 'switch' to this context, the related file descriptor
>gets correctly blamed if hang was introduced throught it.
>
>Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
>---
> drivers/gpu/drm/i915/i915_gem_context.c |    6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
>diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
>index ce41cff..b5a5837 100644
>--- a/drivers/gpu/drm/i915/i915_gem_context.c
>+++ b/drivers/gpu/drm/i915/i915_gem_context.c
>@@ -775,9 +775,11 @@ int i915_switch_context(struct intel_ring_buffer *ring,
> 
> 	BUG_ON(file && to == NULL);
> 
>-	/* We have the fake context, but don't supports switching. */
>-	if (!HAS_HW_CONTEXTS(ring->dev))
>+	/* We have the fake context */
>+	if (!HAS_HW_CONTEXTS(ring->dev)) {
>+		ring->last_context = to;
> 		return 0;
>+	}
> 
> 	return do_switch(ring, to);
> }
>-- 
>1.7.9.5
>

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