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drm/i915/execlists: Record elsp offset during engine setup
author
Chris Wilson
<chris@chris-wilson.co.uk>
Tue, 2 Jan 2018 15:12:33 +0000
(15:12 +0000)
committer
Chris Wilson
<chris@chris-wilson.co.uk>
Wed, 3 Jan 2018 11:01:38 +0000
(11:01 +0000)
Currently, we record the elsp register offset inside init-hw but we only
need to do it once during engine setup (after we know the mmio
iomapping).
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: MichaĆ Winiarski <michal.winiarski@intel.com>
Link:
https://patchwork.freedesktop.org/patch/msgid/20180102151235.3949-17-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/intel_lrc.c
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diff --git
a/drivers/gpu/drm/i915/intel_lrc.c
b/drivers/gpu/drm/i915/intel_lrc.c
index
8f699a1
..
c23ffde
100644
(file)
--- a/
drivers/gpu/drm/i915/intel_lrc.c
+++ b/
drivers/gpu/drm/i915/intel_lrc.c
@@
-1496,9
+1496,6
@@
static int gen8_init_common_ring(struct intel_engine_cs *engine)
execlists->csb_head = -1;
execlists->active = 0;
- execlists->elsp =
- dev_priv->regs + i915_mmio_reg_offset(RING_ELSP(engine));
-
/* After a GPU reset, we may have requests to replay */
if (execlists->first)
tasklet_schedule(&execlists->tasklet);
@@
-2007,6
+2004,9
@@
static int logical_ring_init(struct intel_engine_cs *engine)
if (ret)
goto error;
+ engine->execlists.elsp =
+ engine->i915->regs + i915_mmio_reg_offset(RING_ELSP(engine));
+
return 0;
error: