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From: Stuart Summers <stuart.summers@intel.com>
To: intel-gfx@lists.freedesktop.org
Subject: [PATCH 04/11] drm/i915: Add EU stride runtime parameter
Date: Tue, 20 Aug 2019 16:05:37 -0700	[thread overview]
Message-ID: <20190820230544.170010-5-stuart.summers@intel.com> (raw)
In-Reply-To: <20190820230544.170010-1-stuart.summers@intel.com>

Add a new SSEU runtime parameter, eu_stride, which is
used to mirror the userspace concept of a range of EUs
per subslice.

This patch simply adds the parameter and updates usage
in the QUERY_TOPOLOGY_INFO handler.

Signed-off-by: Stuart Summers <stuart.summers@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gt/intel_sseu.c     | 1 +
 drivers/gpu/drm/i915/gt/intel_sseu.h     | 1 +
 drivers/gpu/drm/i915/i915_query.c        | 5 ++---
 drivers/gpu/drm/i915/intel_device_info.c | 9 ++++-----
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_sseu.c b/drivers/gpu/drm/i915/gt/intel_sseu.c
index 5b8246138020..3a5c0f7b5a08 100644
--- a/drivers/gpu/drm/i915/gt/intel_sseu.c
+++ b/drivers/gpu/drm/i915/gt/intel_sseu.c
@@ -16,6 +16,7 @@ void intel_sseu_set_info(struct sseu_dev_info *sseu, u8 max_slices,
 	sseu->max_eus_per_subslice = max_eus_per_subslice;
 
 	sseu->ss_stride = GEN_SSEU_STRIDE(sseu->max_subslices);
+	sseu->eu_stride = GEN_SSEU_STRIDE(sseu->max_eus_per_subslice);
 }
 
 unsigned int
diff --git a/drivers/gpu/drm/i915/gt/intel_sseu.h b/drivers/gpu/drm/i915/gt/intel_sseu.h
index b0101e1c69bd..fe22d5b18e67 100644
--- a/drivers/gpu/drm/i915/gt/intel_sseu.h
+++ b/drivers/gpu/drm/i915/gt/intel_sseu.h
@@ -34,6 +34,7 @@ struct sseu_dev_info {
 	u8 max_eus_per_subslice;
 
 	u8 ss_stride;
+	u8 eu_stride;
 
 	/* We don't have more than 8 eus per subslice at the moment and as we
 	 * store eus enabled using bits, no need to multiply by eus per
diff --git a/drivers/gpu/drm/i915/i915_query.c b/drivers/gpu/drm/i915/i915_query.c
index d8e25dcf5f0b..abac5042da2b 100644
--- a/drivers/gpu/drm/i915/i915_query.c
+++ b/drivers/gpu/drm/i915/i915_query.c
@@ -37,7 +37,6 @@ static int query_topology_info(struct drm_i915_private *dev_priv,
 	const struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu;
 	struct drm_i915_query_topology_info topo;
 	u32 slice_length, subslice_length, eu_length, total_length;
-	u8 eu_stride = GEN_SSEU_STRIDE(sseu->max_eus_per_subslice);
 	int ret;
 
 	if (query_item->flags != 0)
@@ -50,7 +49,7 @@ static int query_topology_info(struct drm_i915_private *dev_priv,
 
 	slice_length = sizeof(sseu->slice_mask);
 	subslice_length = sseu->max_slices * sseu->ss_stride;
-	eu_length = sseu->max_slices * sseu->max_subslices * eu_stride;
+	eu_length = sseu->max_slices * sseu->max_subslices * sseu->eu_stride;
 	total_length = sizeof(topo) + slice_length + subslice_length +
 		       eu_length;
 
@@ -70,7 +69,7 @@ static int query_topology_info(struct drm_i915_private *dev_priv,
 	topo.subslice_offset = slice_length;
 	topo.subslice_stride = sseu->ss_stride;
 	topo.eu_offset = slice_length + subslice_length;
-	topo.eu_stride = eu_stride;
+	topo.eu_stride = sseu->eu_stride;
 
 	if (__copy_to_user(u64_to_user_ptr(query_item->data_ptr),
 			   &topo, sizeof(topo)))
diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index 77d7bbaa49f3..b1a79ed408eb 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -118,10 +118,9 @@ void intel_device_info_dump_runtime(const struct intel_runtime_info *info,
 static int sseu_eu_idx(const struct sseu_dev_info *sseu, int slice,
 		       int subslice)
 {
-	int subslice_stride = GEN_SSEU_STRIDE(sseu->max_eus_per_subslice);
-	int slice_stride = sseu->max_subslices * subslice_stride;
+	int slice_stride = sseu->max_subslices * sseu->eu_stride;
 
-	return slice * slice_stride + subslice * subslice_stride;
+	return slice * slice_stride + subslice * sseu->eu_stride;
 }
 
 static u16 sseu_get_eus(const struct sseu_dev_info *sseu, int slice,
@@ -130,7 +129,7 @@ static u16 sseu_get_eus(const struct sseu_dev_info *sseu, int slice,
 	int i, offset = sseu_eu_idx(sseu, slice, subslice);
 	u16 eu_mask = 0;
 
-	for (i = 0; i < GEN_SSEU_STRIDE(sseu->max_eus_per_subslice); i++) {
+	for (i = 0; i < sseu->eu_stride; i++) {
 		eu_mask |= ((u16)sseu->eu_mask[offset + i]) <<
 			(i * BITS_PER_BYTE);
 	}
@@ -143,7 +142,7 @@ static void sseu_set_eus(struct sseu_dev_info *sseu, int slice, int subslice,
 {
 	int i, offset = sseu_eu_idx(sseu, slice, subslice);
 
-	for (i = 0; i < GEN_SSEU_STRIDE(sseu->max_eus_per_subslice); i++) {
+	for (i = 0; i < sseu->eu_stride; i++) {
 		sseu->eu_mask[offset + i] =
 			(eu_mask >> (BITS_PER_BYTE * i)) & 0xff;
 	}
-- 
2.22.0

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  parent reply	other threads:[~2019-08-20 23:04 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-20 23:05 [PATCH 00/11] Refactor to expand subslice mask (rev 2) Stuart Summers
2019-08-20 23:05 ` [PATCH 01/11] drm/i915: Use variable for debugfs device status Stuart Summers
2019-08-20 23:05 ` [PATCH 02/11] drm/i915: Add function to set SSEU info per platform Stuart Summers
2019-08-20 23:05 ` [PATCH 03/11] drm/i915: Add subslice stride runtime parameter Stuart Summers
2019-08-20 23:05 ` Stuart Summers [this message]
2019-08-20 23:05 ` [PATCH 05/11] drm/i915: Use local variables for subslice_mask for device info Stuart Summers
2019-08-21 22:31   ` Chris Wilson
2019-08-20 23:05 ` [PATCH 06/11] drm/i915: Add function to set subslices Stuart Summers
2019-08-21 22:32   ` Chris Wilson
2019-08-21 22:37     ` Summers, Stuart
2019-08-20 23:05 ` [PATCH 07/11] drm/i915: Use subslice stride to set subslices for a given slice Stuart Summers
2019-08-21 22:36   ` Chris Wilson
2019-08-21 22:46     ` Summers, Stuart
2019-08-20 23:05 ` [PATCH 08/11] drm/i915: Add function to determine if a slice has a subslice Stuart Summers
2019-08-20 23:05 ` [PATCH 09/11] drm/i915: Refactor instdone loops on new subslice functions Stuart Summers
2019-08-21 22:56   ` Chris Wilson
2019-08-21 23:32     ` Summers, Stuart
2019-08-20 23:05 ` [PATCH 10/11] drm/i915: Add new function to copy subslices for a slice Stuart Summers
2019-08-21 22:41   ` Chris Wilson
2019-08-22 16:36     ` Summers, Stuart
2019-08-20 23:05 ` [PATCH 11/11] drm/i915: Expand subslice mask Stuart Summers
2019-08-21 22:49   ` Chris Wilson
2019-08-22  0:01     ` Summers, Stuart
2019-08-20 23:59 ` ✗ Fi.CI.CHECKPATCH: warning for Refactor to expand subslice mask (rev 2) Patchwork
2019-08-21  0:02 ` ✗ Fi.CI.SPARSE: " Patchwork
2019-08-21  0:20 ` ✓ Fi.CI.BAT: success " Patchwork
2019-08-21 15:15 ` ✓ Fi.CI.IGT: " Patchwork
2019-08-22 18:32 [PATCH 00/11] " Stuart Summers
2019-08-22 18:32 ` [PATCH 04/11] drm/i915: Add EU stride runtime parameter Stuart Summers
2019-08-23 16:02 [PATCH 00/11] Refactor to expand subslice mask (rev 2) Stuart Summers
2019-08-23 16:03 ` [PATCH 04/11] drm/i915: Add EU stride runtime parameter Stuart Summers

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