[Intel-gfx] [PATCH 3/3] drm/i915: Compute the HWS offsets explicitly
Chris Wilson
chris at chris-wilson.co.uk
Thu Jan 24 13:04:01 UTC 2019
Simplify by using sizeof(u32) to convert from the index inside the HWSP
to the byte offset. This has the advantage of not only being shorter
(and so not upsetting checkpatch!) but that it matches use where we are
writing to byte addresses using other commands than MI_STORE_DWORD_IMM.
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
drivers/gpu/drm/i915/intel_guc_submission.c | 4 ++--
drivers/gpu/drm/i915/intel_ringbuffer.h | 10 +++++-----
2 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_guc_submission.c b/drivers/gpu/drm/i915/intel_guc_submission.c
index ab1c49b106f2..349ae5844f24 100644
--- a/drivers/gpu/drm/i915/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/intel_guc_submission.c
@@ -666,7 +666,7 @@ static void complete_preempt_context(struct intel_engine_cs *engine)
execlists_unwind_incomplete_requests(execlists);
wait_for_guc_preempt_report(engine);
- intel_write_status_page(engine, I915_GEM_HWS_PREEMPT_INDEX, 0);
+ intel_write_status_page(engine, I915_GEM_HWS_PREEMPT, 0);
}
/**
@@ -824,7 +824,7 @@ static void guc_submission_tasklet(unsigned long data)
}
if (execlists_is_active(execlists, EXECLISTS_ACTIVE_PREEMPT) &&
- intel_read_status_page(engine, I915_GEM_HWS_PREEMPT_INDEX) ==
+ intel_read_status_page(engine, I915_GEM_HWS_PREEMPT) ==
GUC_PREEMPT_FINISHED)
complete_preempt_context(engine);
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 0834e91d4ace..5ad46c2fbc0f 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -716,11 +716,11 @@ intel_write_status_page(struct intel_engine_cs *engine, int reg, u32 value)
* The area from dword 0x30 to 0x3ff is available for driver usage.
*/
#define I915_GEM_HWS_INDEX 0x30
-#define I915_GEM_HWS_INDEX_ADDR (I915_GEM_HWS_INDEX << MI_STORE_DWORD_INDEX_SHIFT)
-#define I915_GEM_HWS_PREEMPT_INDEX 0x32
-#define I915_GEM_HWS_PREEMPT_ADDR (I915_GEM_HWS_PREEMPT_INDEX << MI_STORE_DWORD_INDEX_SHIFT)
-#define I915_GEM_HWS_SCRATCH_INDEX 0x40
-#define I915_GEM_HWS_SCRATCH_ADDR (I915_GEM_HWS_SCRATCH_INDEX << MI_STORE_DWORD_INDEX_SHIFT)
+#define I915_GEM_HWS_INDEX_ADDR (I915_GEM_HWS_INDEX * sizeof(u32))
+#define I915_GEM_HWS_PREEMPT 0x32
+#define I915_GEM_HWS_PREEMPT_ADDR (I915_GEM_HWS_PREEMPT * sizeof(u32))
+#define I915_GEM_HWS_SCRATCH 0x40
+#define I915_GEM_HWS_SCRATCH_ADDR (I915_GEM_HWS_SCRATCH * sizeof(u32))
#define I915_HWS_CSB_BUF0_INDEX 0x10
#define I915_HWS_CSB_WRITE_INDEX 0x1f
--
2.20.1
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