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From: Stuart Summers <stuart.summers@intel.com>
To: intel-gfx@lists.freedesktop.org
Subject: [PATCH 07/10] drm/i915: Add function to determine if a slice has a subslice
Date: Fri,  2 Aug 2019 13:51:31 -0700	[thread overview]
Message-ID: <20190802205134.303-8-stuart.summers@intel.com> (raw)
In-Reply-To: <20190802205134.303-1-stuart.summers@intel.com>

Add a new function to determine whether a particular slice
has a given subslice.

Signed-off-by: Stuart Summers <stuart.summers@intel.com>
---
 drivers/gpu/drm/i915/gt/intel_sseu.h     | 10 ++++++++++
 drivers/gpu/drm/i915/intel_device_info.c |  9 ++++-----
 2 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_sseu.h b/drivers/gpu/drm/i915/gt/intel_sseu.h
index 2261d4e7d98b..0ecc1c35a7a1 100644
--- a/drivers/gpu/drm/i915/gt/intel_sseu.h
+++ b/drivers/gpu/drm/i915/gt/intel_sseu.h
@@ -66,6 +66,16 @@ intel_sseu_from_device_info(const struct sseu_dev_info *sseu)
 	return value;
 }
 
+static inline bool
+intel_sseu_has_subslice(const struct sseu_dev_info *sseu, int slice,
+			int subslice)
+{
+	u8 mask = sseu->subslice_mask[slice * sseu->ss_stride +
+				      subslice / BITS_PER_BYTE];
+
+	return mask & BIT(subslice % BITS_PER_BYTE);
+}
+
 void intel_sseu_set_info(struct sseu_dev_info *sseu, u8 max_slices,
 			 u8 max_subslices, u8 max_eus_per_subslice);
 
diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index 2ecf2e50ceed..66fe68875d1b 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -210,10 +210,9 @@ static void gen11_sseu_info_init(struct drm_i915_private *dev_priv)
 			intel_sseu_set_subslices(sseu, s, (ss_en >> ss_idx) &
 							  ss_en_mask);
 
-			for (ss = 0; ss < sseu->max_subslices; ss++) {
-				if (sseu->subslice_mask[s] & BIT(ss))
+			for (ss = 0; ss < sseu->max_subslices; ss++)
+				if (intel_sseu_has_subslice(sseu, s, ss))
 					sseu_set_eus(sseu, s, ss, eu_en);
-			}
 		}
 	}
 	sseu->eu_per_subslice = hweight8(eu_en);
@@ -399,7 +398,7 @@ static void gen9_sseu_info_init(struct drm_i915_private *dev_priv)
 			int eu_per_ss;
 			u8 eu_disabled_mask;
 
-			if (!(sseu->subslice_mask[s] & BIT(ss)))
+			if (!intel_sseu_has_subslice(sseu, s, ss))
 				/* skip disabled subslice */
 				continue;
 
@@ -505,7 +504,7 @@ static void broadwell_sseu_info_init(struct drm_i915_private *dev_priv)
 			u8 eu_disabled_mask;
 			u32 n_disabled;
 
-			if (!(sseu->subslice_mask[s] & BIT(ss)))
+			if (!intel_sseu_has_subslice(sseu, s, ss))
 				/* skip disabled subslice */
 				continue;
 
-- 
2.21.0.5.gaeb582a983

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  parent reply	other threads:[~2019-08-02 20:51 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-02 20:51 [PATCH 00/10] Refactor to expand subslice mask (rev 2) Stuart Summers
2019-08-02 20:51 ` [PATCH 01/10] drm/i915: Use variable for debugfs device status Stuart Summers
2019-08-02 21:24   ` Chris Wilson
2019-08-02 22:47     ` Stuart Summers
2019-08-02 20:51 ` [PATCH 02/10] drm/i915: Add function to set SSEU info per platform Stuart Summers
2019-08-02 20:51 ` [PATCH 03/10] drm/i915: Use local variable for subslice_mask on HSW Stuart Summers
2019-08-02 21:28   ` Chris Wilson
2019-08-02 22:47     ` Stuart Summers
2019-08-02 22:54       ` Chris Wilson
2019-08-02 23:52         ` Stuart Summers
2019-08-02 20:51 ` [PATCH 04/10] drm/i915: Add subslice stride runtime parameter Stuart Summers
2019-08-02 20:51 ` [PATCH 05/10] drm/i915: Add EU " Stuart Summers
2019-08-02 20:51 ` [PATCH 06/10] drm/i915: Add function to set subslices Stuart Summers
2019-08-02 20:51 ` Stuart Summers [this message]
2019-08-02 20:51 ` [PATCH 08/10] drm/i915: Refactor instdone loops on new subslice functions Stuart Summers
2019-08-02 20:51 ` [PATCH 09/10] drm/i915: Add new function to copy subslices for a slice Stuart Summers
2019-08-02 20:51 ` [PATCH 10/10] drm/i915: Expand subslice mask Stuart Summers
2019-08-02 21:00 ` ✗ Fi.CI.CHECKPATCH: warning for Refactor to expand subslice mask (rev 2) Patchwork
2019-08-02 21:21 ` ✓ Fi.CI.BAT: success " Patchwork
2019-08-04 13:45 ` ✓ Fi.CI.IGT: " Patchwork

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