On 25/01/2016 16:17, Chris Wilson wrote:
On Mon, Jan 25, 2016 at 02:43:06PM +0000, Gore, Tim wrote:
Tim Gore
Intel Corporation (UK) Ltd. - Co. Reg. #1134945 - Pipers Way, Swindon SN3 1RJ
-----Original Message-----
From: Mika Kuoppala [mailto:mika.kuoppala@xxxxxxxxxxxxxxx]
Sent: Monday, January 25, 2016 2:39 PM
To: Gore, Tim; intel-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Gore, Tim; arun.siluvery@xxxxxxxxxxxxxxx
Subject: Re: [PATCH 1/3] drm/i915: add function for GT related workarounds
tim.gore@xxxxxxxxx writes:
From: Tim Gore <tim.gore@xxxxxxxxx>
Add a function that is a place for workarounds that are GT related but
not required per ring. This function is called on driver load and also
after a reset and on resume, so it is safe for workarounds that get
clobbered in these situations.
Signed-off-by: Tim Gore <tim.gore@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gem_gtt.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c
b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 7377b67..fe960d5 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -2132,6 +2132,16 @@ static void i915_address_space_init(struct
i915_address_space *vm,
list_add_tail(&vm->global_link, &dev_priv->vm_list); }
+void gtt_write_workarounds(struct drm_device *dev) {
static void
This can be squashed with 2/3.
-Mika
Do you mean all squashed together, into a single patch?
I would. They are all setting the same register to a nominal value, for
the same purpose.
Don't we normally split WA into individual patches or is this only for
this WA?
regards
Arun
u32 val;
/* Wa:bar,foo,baz */
val = 0;
if (is_bar(dev_priv))
val = 1;
else if (is_foo(dev_priv))
val = 2;
else if (is_baz(dev_priv))
val = 3;
if (val)
I915_WRITE(REG, val);
Would result in slightly less horrendous code.
-Chris
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