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From: Nirmoy Das <nirmoy.das@intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: andi.shyti@intel.com, chris.p.wilson@linux.intel.com,
	matthew.d.roper@intel.com, Nirmoy Das <nirmoy.das@intel.com>
Subject: [Intel-gfx] [PATCH 3/5] drm/i915: Implement __for_each_sgt_daddr_next
Date: Wed,  6 Sep 2023 13:31:19 +0200	[thread overview]
Message-ID: <20230906113121.30472-4-nirmoy.das@intel.com> (raw)
In-Reply-To: <20230906113121.30472-1-nirmoy.das@intel.com>

Implement a way to iterate over sgt with pre-initialized
sgt_iter state.

Signed-off-by: Nirmoy Das <nirmoy.das@intel.com>
---
 drivers/gpu/drm/i915/i915_scatterlist.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_scatterlist.h b/drivers/gpu/drm/i915/i915_scatterlist.h
index 5a10c1a31183..6cf8a298849f 100644
--- a/drivers/gpu/drm/i915/i915_scatterlist.h
+++ b/drivers/gpu/drm/i915/i915_scatterlist.h
@@ -91,6 +91,16 @@ static inline struct scatterlist *__sg_next(struct scatterlist *sg)
 	     ((__dp) = (__iter).dma + (__iter).curr), (__iter).sgp;	\
 	     (((__iter).curr += (__step)) >= (__iter).max) ?		\
 	     (__iter) = __sgt_iter(__sg_next((__iter).sgp), true), 0 : 0)
+/**
+ * __for_each_daddr_next - iterates over the device addresses with pre-initialized iterator.
+ * @__dp:	Device address (output)
+ * @__iter:	'struct sgt_iter' (iterator state, external)
+ * @__step:	step size
+ */
+#define __for_each_daddr_next(__dp, __iter, __step)                  \
+	for (; ((__dp) = (__iter).dma + (__iter).curr), (__iter).sgp;   \
+	     (((__iter).curr += (__step)) >= (__iter).max) ?            \
+	     (__iter) = __sgt_iter(__sg_next((__iter).sgp), true), 0 : 0)
 
 /**
  * for_each_sgt_page - iterate over the pages of the given sg_table
-- 
2.41.0


  parent reply	other threads:[~2023-09-06 11:31 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-06 11:31 [Intel-gfx] [PATCH 0/5] Update GGTT with MI_UPDATE_GTT on MTL Nirmoy Das
2023-09-06 11:31 ` [Intel-gfx] [PATCH 1/5] drm/i915: Lift runtime-pm acquire callbacks out of intel_wakeref.mutex Nirmoy Das
2023-09-07 11:03   ` Andi Shyti
2023-09-06 11:31 ` [Intel-gfx] [PATCH 2/5] drm/i915: Create a kernel context for GGTT updates Nirmoy Das
2023-09-07 13:41   ` Andi Shyti
2023-09-13 12:05     ` Nirmoy Das
2023-09-06 11:31 ` Nirmoy Das [this message]
2023-09-07 13:46   ` [Intel-gfx] [PATCH 3/5] drm/i915: Implement __for_each_sgt_daddr_next Andi Shyti
2023-09-06 11:31 ` [Intel-gfx] [PATCH 4/5] drm/i915: Implement GGTT update method with MI_UPDATE_GTT Nirmoy Das
2023-09-07 13:48   ` Andi Shyti
2023-09-13 12:07     ` Nirmoy Das
2023-09-06 11:31 ` [Intel-gfx] [PATCH 5/5] drm/i915: Enable GGTT updates with binder in MTL Nirmoy Das
2023-09-06 12:25 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Update GGTT with MI_UPDATE_GTT on MTL Patchwork
2023-09-06 12:25 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2023-09-06 12:43 ` [Intel-gfx] ✗ Fi.CI.BAT: failure " Patchwork
2023-09-07 11:37 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Update GGTT with MI_UPDATE_GTT on MTL (rev2) Patchwork
2023-09-07 11:37 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2023-09-07 11:55 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2023-09-07 13:08 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
2023-09-12 18:38 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Update GGTT with MI_UPDATE_GTT on MTL (rev3) Patchwork
2023-09-12 18:38 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2023-09-12 18:57 ` [Intel-gfx] ✗ Fi.CI.BAT: failure " Patchwork

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