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drm/i915: Add function to set SSEU info per platform

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Add a new function to allow each platform to set maximum
slice, subslice, and EU information to reduce code duplication.

Signed-off-by: Stuart Summers <stuart.summers@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190823160307.180813-3-stuart.summers@intel.com
This commit is contained in:
Stuart Summers 2019-08-23 09:02:58 -07:00 committed by Chris Wilson
parent 4087f873df
commit 8b355db99c
4 changed files with 28 additions and 28 deletions
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8
drivers/gpu/drm/i915/gt/intel_sseu.c
View File

@ -8,6 +8,14 @@
#include "intel_lrc_reg.h"
#include "intel_sseu.h"
void intel_sseu_set_info(struct sseu_dev_info *sseu, u8 max_slices,
u8 max_subslices, u8 max_eus_per_subslice)
{
sseu->max_slices = max_slices;
sseu->max_subslices = max_subslices;
sseu->max_eus_per_subslice = max_eus_per_subslice;
}
unsigned int
intel_sseu_subslice_total(const struct sseu_dev_info *sseu)
{

3
drivers/gpu/drm/i915/gt/intel_sseu.h
View File

@ -63,6 +63,9 @@ intel_sseu_from_device_info(const struct sseu_dev_info *sseu)
return value;
}
void intel_sseu_set_info(struct sseu_dev_info *sseu, u8 max_slices,
u8 max_subslices, u8 max_eus_per_subslice);
unsigned int
intel_sseu_subslice_total(const struct sseu_dev_info *sseu);

6
drivers/gpu/drm/i915/i915_debugfs.c
View File

@ -3950,9 +3950,9 @@ static int i915_sseu_status(struct seq_file *m, void *unused)
seq_puts(m, "SSEU Device Status\n");
memset(&sseu, 0, sizeof(sseu));
sseu.max_slices = info->sseu.max_slices;
sseu.max_subslices = info->sseu.max_subslices;
sseu.max_eus_per_subslice = info->sseu.max_eus_per_subslice;
intel_sseu_set_info(&sseu, info->sseu.max_slices,
info->sseu.max_subslices,
info->sseu.max_eus_per_subslice);
with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref) {
if (IS_CHERRYVIEW(dev_priv))

39
drivers/gpu/drm/i915/intel_device_info.c
View File

@ -191,15 +191,10 @@ static void gen11_sseu_info_init(struct drm_i915_private *dev_priv)
u8 eu_en;
int s;
if (IS_ELKHARTLAKE(dev_priv)) {
sseu->max_slices = 1;
sseu->max_subslices = 4;
sseu->max_eus_per_subslice = 8;
} else {
sseu->max_slices = 1;
sseu->max_subslices = 8;
sseu->max_eus_per_subslice = 8;
}
if (IS_ELKHARTLAKE(dev_priv))
intel_sseu_set_info(sseu, 1, 4, 8);
else
intel_sseu_set_info(sseu, 1, 8, 8);
s_en = I915_READ(GEN11_GT_SLICE_ENABLE) & GEN11_GT_S_ENA_MASK;
ss_en = ~I915_READ(GEN11_GT_SUBSLICE_DISABLE);
@ -236,11 +231,10 @@ static void gen10_sseu_info_init(struct drm_i915_private *dev_priv)
const int eu_mask = 0xff;
u32 subslice_mask, eu_en;
intel_sseu_set_info(sseu, 6, 4, 8);
sseu->slice_mask = (fuse2 & GEN10_F2_S_ENA_MASK) >>
GEN10_F2_S_ENA_SHIFT;
sseu->max_slices = 6;
sseu->max_subslices = 4;
sseu->max_eus_per_subslice = 8;
subslice_mask = (1 << 4) - 1;
subslice_mask &= ~((fuse2 & GEN10_F2_SS_DIS_MASK) >>
@ -314,9 +308,7 @@ static void cherryview_sseu_info_init(struct drm_i915_private *dev_priv)
fuse = I915_READ(CHV_FUSE_GT);
sseu->slice_mask = BIT(0);
sseu->max_slices = 1;
sseu->max_subslices = 2;
sseu->max_eus_per_subslice = 8;
intel_sseu_set_info(sseu, 1, 2, 8);
if (!(fuse & CHV_FGT_DISABLE_SS0)) {
u8 disabled_mask =
@ -372,9 +364,8 @@ static void gen9_sseu_info_init(struct drm_i915_private *dev_priv)
sseu->slice_mask = (fuse2 & GEN8_F2_S_ENA_MASK) >> GEN8_F2_S_ENA_SHIFT;
/* BXT has a single slice and at most 3 subslices. */
sseu->max_slices = IS_GEN9_LP(dev_priv) ? 1 : 3;
sseu->max_subslices = IS_GEN9_LP(dev_priv) ? 3 : 4;
sseu->max_eus_per_subslice = 8;
intel_sseu_set_info(sseu, IS_GEN9_LP(dev_priv) ? 1 : 3,
IS_GEN9_LP(dev_priv) ? 3 : 4, 8);
/*
* The subslice disable field is global, i.e. it applies
@ -473,9 +464,7 @@ static void broadwell_sseu_info_init(struct drm_i915_private *dev_priv)
fuse2 = I915_READ(GEN8_FUSE2);
sseu->slice_mask = (fuse2 & GEN8_F2_S_ENA_MASK) >> GEN8_F2_S_ENA_SHIFT;
sseu->max_slices = 3;
sseu->max_subslices = 3;
sseu->max_eus_per_subslice = 8;
intel_sseu_set_info(sseu, 3, 3, 8);
/*
* The subslice disable field is global, i.e. it applies
@ -577,9 +566,6 @@ static void haswell_sseu_info_init(struct drm_i915_private *dev_priv)
break;
}
sseu->max_slices = hweight8(sseu->slice_mask);
sseu->max_subslices = hweight8(sseu->subslice_mask[0]);
fuse1 = I915_READ(HSW_PAVP_FUSE1);
switch ((fuse1 & HSW_F1_EU_DIS_MASK) >> HSW_F1_EU_DIS_SHIFT) {
default:
@ -596,7 +582,10 @@ static void haswell_sseu_info_init(struct drm_i915_private *dev_priv)
sseu->eu_per_subslice = 6;
break;
}
sseu->max_eus_per_subslice = sseu->eu_per_subslice;
intel_sseu_set_info(sseu, hweight8(sseu->slice_mask),
hweight8(sseu->subslice_mask[0]),
sseu->eu_per_subslice);
for (s = 0; s < sseu->max_slices; s++) {
for (ss = 0; ss < sseu->max_subslices; ss++) {