Re: [PATCH 3/6] drm/i915: Move calculation of subslices per slice to new function

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On 5/1/19 8:34 AM, Stuart Summers wrote:
Add a new function to return the number of subslices per slice to
consolidate code usage.

v2: rebase on changes to move sseu struct to intel_sseu.h

Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>
Signed-off-by: Stuart Summers <stuart.summers@xxxxxxxxx>
---
  drivers/gpu/drm/i915/gt/intel_sseu.h     | 6 ++++++
  drivers/gpu/drm/i915/i915_debugfs.c      | 2 +-
  drivers/gpu/drm/i915/intel_device_info.c | 4 ++--
  3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_sseu.h b/drivers/gpu/drm/i915/gt/intel_sseu.h
index c0b16b248d4c..f5ff6b7a756a 100644
--- a/drivers/gpu/drm/i915/gt/intel_sseu.h
+++ b/drivers/gpu/drm/i915/gt/intel_sseu.h
@@ -63,6 +63,12 @@ intel_sseu_from_device_info(const struct sseu_dev_info *sseu)
  	return value;
  }
+static inline unsigned int
+sseu_subslices_per_slice(const struct sseu_dev_info *sseu, u8 slice)

This is exposed, so needs an intel_* prefix. with that:

Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>

Daniele

+{
+	return hweight8(sseu->subslice_mask[slice]);
+}
+
  u32 intel_sseu_make_rpcs(struct drm_i915_private *i915,
  			 const struct intel_sseu *req_sseu);
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 0e4dffcd4da4..fe854c629a32 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -4185,7 +4185,7 @@ static void i915_print_sseu_info(struct seq_file *m, bool is_available_info,
  		   sseu_subslice_total(sseu));
  	for (s = 0; s < fls(sseu->slice_mask); s++) {
  		seq_printf(m, "  %s Slice%i subslices: %u\n", type,
-			   s, hweight8(sseu->subslice_mask[s]));
+			   s, sseu_subslices_per_slice(sseu, s));
  	}
  	seq_printf(m, "  %s EU Total: %u\n", type,
  		   sseu->eu_total);
diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index 6af480b95bc6..559cf0d0628e 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -93,7 +93,7 @@ static void sseu_dump(const struct sseu_dev_info *sseu, struct drm_printer *p)
  	drm_printf(p, "subslice total: %u\n", sseu_subslice_total(sseu));
  	for (s = 0; s < sseu->max_slices; s++) {
  		drm_printf(p, "slice%d: %u subslices, mask=%04x\n",
-			   s, hweight8(sseu->subslice_mask[s]),
+			   s, sseu_subslices_per_slice(sseu, s),
  			   sseu->subslice_mask[s]);
  	}
  	drm_printf(p, "EU total: %u\n", sseu->eu_total);
@@ -126,7 +126,7 @@ void intel_device_info_dump_topology(const struct sseu_dev_info *sseu,
for (s = 0; s < sseu->max_slices; s++) {
  		drm_printf(p, "slice%d: %u subslice(s) (0x%hhx):\n",
-			   s, hweight8(sseu->subslice_mask[s]),
+			   s, sseu_subslices_per_slice(sseu, s),
  			   sseu->subslice_mask[s]);
for (ss = 0; ss < sseu->max_subslices; ss++) {

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