[PATCH v6 2/5] drm/i915: store all subslice masks
Lionel Landwerlin
lionel.g.landwerlin at intel.com
Mon Dec 4 15:02:35 UTC 2017
Up to now, subslice mask was assumed to be uniform across slices. But
starting with Cannonlake, slices can be asymetric (for example slice0
has different number of subslices as slice1+). This change stores all
subslices masks for all slices rather than having a single mask that
applies to all slices.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin at intel.com>
---
drivers/gpu/drm/i915/i915_debugfs.c | 24 +++--
drivers/gpu/drm/i915/i915_drv.c | 2 +-
drivers/gpu/drm/i915/i915_drv.h | 23 ++++-
drivers/gpu/drm/i915/intel_device_info.c | 169 ++++++++++++++++++++++---------
drivers/gpu/drm/i915/intel_lrc.c | 2 +-
drivers/gpu/drm/i915/intel_ringbuffer.h | 2 +-
6 files changed, 161 insertions(+), 61 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 28294470ae31..ef091a2a6b12 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -4340,7 +4340,7 @@ static void cherryview_sseu_device_status(struct drm_i915_private *dev_priv,
continue;
sseu->slice_mask = BIT(0);
- sseu->subslice_mask |= BIT(ss);
+ sseu->subslices_mask[0] |= BIT(ss);
eu_cnt = ((sig1[ss] & CHV_EU08_PG_ENABLE) ? 0 : 2) +
((sig1[ss] & CHV_EU19_PG_ENABLE) ? 0 : 2) +
((sig1[ss] & CHV_EU210_PG_ENABLE) ? 0 : 2) +
@@ -4387,7 +4387,7 @@ static void gen10_sseu_device_status(struct drm_i915_private *dev_priv,
continue;
sseu->slice_mask |= BIT(s);
- sseu->subslice_mask = info->sseu.subslice_mask;
+ sseu->subslices_mask[s] = info->sseu.subslices_mask[s];
for (ss = 0; ss < ss_max; ss++) {
unsigned int eu_cnt;
@@ -4442,8 +4442,8 @@ static void gen9_sseu_device_status(struct drm_i915_private *dev_priv,
sseu->slice_mask |= BIT(s);
if (IS_GEN9_BC(dev_priv))
- sseu->subslice_mask =
- INTEL_INFO(dev_priv)->sseu.subslice_mask;
+ sseu->subslices_mask[s] =
+ INTEL_INFO(dev_priv)->sseu.subslices_mask[s];
for (ss = 0; ss < ss_max; ss++) {
unsigned int eu_cnt;
@@ -4453,7 +4453,7 @@ static void gen9_sseu_device_status(struct drm_i915_private *dev_priv,
/* skip disabled subslice */
continue;
- sseu->subslice_mask |= BIT(ss);
+ sseu->subslices_mask[s] |= BIT(ss);
}
eu_cnt = 2 * hweight32(eu_reg[2*s + ss/2] &
@@ -4475,9 +4475,12 @@ static void broadwell_sseu_device_status(struct drm_i915_private *dev_priv,
sseu->slice_mask = slice_info & GEN8_LSLICESTAT_MASK;
if (sseu->slice_mask) {
- sseu->subslice_mask = INTEL_INFO(dev_priv)->sseu.subslice_mask;
sseu->eu_per_subslice =
INTEL_INFO(dev_priv)->sseu.eu_per_subslice;
+ for (s = 0; s < fls(sseu->slice_mask); s++) {
+ sseu->subslices_mask[s] =
+ INTEL_INFO(dev_priv)->sseu.subslices_mask[s];
+ }
sseu->eu_total = sseu->eu_per_subslice *
sseu_subslice_total(sseu);
@@ -4496,6 +4499,7 @@ static void i915_print_sseu_info(struct seq_file *m, bool is_available_info,
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
const char *type = is_available_info ? "Available" : "Enabled";
+ int s;
seq_printf(m, " %s Slice Mask: %04x\n", type,
sseu->slice_mask);
@@ -4503,10 +4507,10 @@ static void i915_print_sseu_info(struct seq_file *m, bool is_available_info,
hweight8(sseu->slice_mask));
seq_printf(m, " %s Subslice Total: %u\n", type,
sseu_subslice_total(sseu));
- seq_printf(m, " %s Subslice Mask: %04x\n", type,
- sseu->subslice_mask);
- seq_printf(m, " %s Subslice Per Slice: %u\n", type,
- hweight8(sseu->subslice_mask));
+ for (s = 0; s < fls(sseu->slice_mask); s++) {
+ seq_printf(m, " %s Slice%i Subslice Mask: %04x\n", type,
+ s, sseu->subslices_mask[s]);
+ }
seq_printf(m, " %s EU Total: %u\n", type,
sseu->eu_total);
seq_printf(m, " %s EU Per Subslice: %u\n", type,
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 7faf20aff25a..b9bfc38e6188 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -414,7 +414,7 @@ static int i915_getparam(struct drm_device *dev, void *data,
return -ENODEV;
break;
case I915_PARAM_SUBSLICE_MASK:
- value = INTEL_INFO(dev_priv)->sseu.subslice_mask;
+ value = INTEL_INFO(dev_priv)->sseu.subslices_mask[0];
if (!value)
return -ENODEV;
break;
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 594fd14e66c5..0a8e8a3772e5 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -801,9 +801,12 @@ struct intel_csr {
func(supports_tv); \
func(has_ipc);
+#define GEN_MAX_SLICES (6) /* CNL upper bound */
+#define GEN_MAX_SUBSLICES (7)
+
struct sseu_dev_info {
u8 slice_mask;
- u8 subslice_mask;
+ u8 subslices_mask[GEN_MAX_SLICES];
u8 eu_total;
u8 eu_per_subslice;
u8 min_eu_in_pool;
@@ -812,11 +815,27 @@ struct sseu_dev_info {
u8 has_slice_pg:1;
u8 has_subslice_pg:1;
u8 has_eu_pg:1;
+
+ /* Topology fields */
+ u8 max_slices;
+ u8 max_subslices;
+ u8 max_eus_per_subslice;
+
+ /* 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
+ * subslice.
+ */
+ u8 eu_mask[GEN_MAX_SLICES * GEN_MAX_SUBSLICES];
};
static inline unsigned int sseu_subslice_total(const struct sseu_dev_info *sseu)
{
- return hweight8(sseu->slice_mask) * hweight8(sseu->subslice_mask);
+ unsigned s, total = 0;
+
+ for (s = 0; s < ARRAY_SIZE(sseu->subslices_mask); s++)
+ total += hweight8(sseu->subslices_mask[s]);
+
+ return total;
}
/* Keep in gen based order, and chronological order within a gen */
diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index 405d70124a46..11ceb43ddcee 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -82,22 +82,74 @@ void intel_device_info_dump(struct drm_i915_private *dev_priv)
#undef PRINT_FLAG
}
+static u8 compute_eu_total(const struct sseu_dev_info *sseu)
+{
+ u8 i, total = 0;
+
+ for (i = 0; i < ARRAY_SIZE(sseu->eu_mask); i++)
+ total += hweight8(sseu->eu_mask[i]);
+
+ return total;
+}
+
static void gen10_sseu_info_init(struct drm_i915_private *dev_priv)
{
struct sseu_dev_info *sseu = &mkwrite_device_info(dev_priv)->sseu;
const u32 fuse2 = I915_READ(GEN8_FUSE2);
+ int s, ss, eu_mask = 0xff;
+ u32 subslice_mask, eu_en;
sseu->slice_mask = (fuse2 & GEN10_F2_S_ENA_MASK) >>
GEN10_F2_S_ENA_SHIFT;
- sseu->subslice_mask = (1 << 4) - 1;
- sseu->subslice_mask &= ~((fuse2 & GEN10_F2_SS_DIS_MASK) >>
- GEN10_F2_SS_DIS_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) >>
+ GEN10_F2_SS_DIS_SHIFT);
+
+ /* Slice0 can have up to 3 subslices, but there are only 2 in
+ * slice1/2.
+ */
+ sseu->subslices_mask[0] = subslice_mask;
+ for (s = 1; s < sseu->max_slices; s++)
+ sseu->subslices_mask[s] = subslice_mask & 0x3;
+
+ /* Slice0 */
+ eu_en = ~I915_READ(GEN8_EU_DISABLE0);
+ for (ss = 0; ss < sseu->max_subslices; ss++)
+ sseu->eu_mask[ss] = (eu_en >> (8 * ss)) & eu_mask;
+ /* Slice1 */
+ sseu->eu_mask[sseu->max_subslices] = (eu_en >> 24) & eu_mask;
+ eu_en = ~I915_READ(GEN8_EU_DISABLE1);
+ sseu->eu_mask[sseu->max_subslices + 1] = eu_en & eu_mask;
+ /* Slice2 */
+ sseu->eu_mask[2 * sseu->max_subslices] = (eu_en >> 8) & eu_mask;
+ sseu->eu_mask[2 * sseu->max_subslices + 1] = (eu_en >> 16) & eu_mask;
+ /* Slice3 */
+ sseu->eu_mask[3 * sseu->max_subslices] = (eu_en >> 24) & eu_mask;
+ eu_en = ~I915_READ(GEN8_EU_DISABLE2);
+ sseu->eu_mask[3 * sseu->max_subslices + 1] = eu_en & eu_mask;
+ /* Slice4 */
+ sseu->eu_mask[4 * sseu->max_subslices] = (eu_en >> 8) & eu_mask;
+ sseu->eu_mask[4 * sseu->max_subslices + 1] = (eu_en >> 16) & eu_mask;
+ /* Slice5 */
+ sseu->eu_mask[5 * sseu->max_subslices] = (eu_en >> 24) & eu_mask;
+ eu_en = ~I915_READ(GEN10_EU_DISABLE3);
+ sseu->eu_mask[5 * sseu->max_subslices + 1] = eu_en & eu_mask;
+
+ /* Do a second pass where we marked the subslices disabled if all
+ * their eus are off.
+ */
+ for (s = 0; s < sseu->max_slices; s++) {
+ for (ss = 0; ss < sseu->max_subslices; ss++) {
+ if (sseu->eu_mask[s * sseu->max_subslices + ss] == 0)
+ sseu->subslices_mask[s] &= ~BIT(ss);
+ }
+ }
- sseu->eu_total = hweight32(~I915_READ(GEN8_EU_DISABLE0));
- sseu->eu_total += hweight32(~I915_READ(GEN8_EU_DISABLE1));
- sseu->eu_total += hweight32(~I915_READ(GEN8_EU_DISABLE2));
- sseu->eu_total += hweight8(~(I915_READ(GEN10_EU_DISABLE3) &
- GEN10_EU_DIS_SS_MASK));
+ sseu->eu_total = compute_eu_total(sseu);
/*
* CNL is expected to always have a uniform distribution
@@ -118,26 +170,30 @@ static void gen10_sseu_info_init(struct drm_i915_private *dev_priv)
static void cherryview_sseu_info_init(struct drm_i915_private *dev_priv)
{
struct sseu_dev_info *sseu = &mkwrite_device_info(dev_priv)->sseu;
- u32 fuse, eu_dis;
+ u32 fuse;
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;
if (!(fuse & CHV_FGT_DISABLE_SS0)) {
- sseu->subslice_mask |= BIT(0);
- eu_dis = fuse & (CHV_FGT_EU_DIS_SS0_R0_MASK |
- CHV_FGT_EU_DIS_SS0_R1_MASK);
- sseu->eu_total += 8 - hweight32(eu_dis);
+ sseu->subslices_mask[0] |= BIT(0);
+ sseu->eu_mask[0] = (fuse & CHV_FGT_EU_DIS_SS0_R0_MASK) >> CHV_FGT_EU_DIS_SS0_R0_SHIFT;
+ sseu->eu_mask[0] |= ((fuse & CHV_FGT_EU_DIS_SS0_R1_MASK) >> CHV_FGT_EU_DIS_SS0_R1_SHIFT) << 4;
+ sseu->subslices_mask[0] = 1;
}
if (!(fuse & CHV_FGT_DISABLE_SS1)) {
- sseu->subslice_mask |= BIT(1);
- eu_dis = fuse & (CHV_FGT_EU_DIS_SS1_R0_MASK |
- CHV_FGT_EU_DIS_SS1_R1_MASK);
- sseu->eu_total += 8 - hweight32(eu_dis);
+ sseu->subslices_mask[0] |= BIT(1);
+ sseu->eu_mask[1] = (fuse & CHV_FGT_EU_DIS_SS1_R0_MASK) >> CHV_FGT_EU_DIS_SS0_R0_SHIFT;
+ sseu->eu_mask[2] |= ((fuse & CHV_FGT_EU_DIS_SS1_R1_MASK) >> CHV_FGT_EU_DIS_SS0_R1_SHIFT) << 4;
}
+ sseu->eu_total = compute_eu_total(sseu);
+
/*
* CHV expected to always have a uniform distribution of EU
* across subslices.
@@ -159,41 +215,50 @@ static void gen9_sseu_info_init(struct drm_i915_private *dev_priv)
{
struct intel_device_info *info = mkwrite_device_info(dev_priv);
struct sseu_dev_info *sseu = &info->sseu;
- int s_max = 3, ss_max = 4, eu_max = 8;
int s, ss;
- u32 fuse2, eu_disable;
+ u32 fuse2, eu_disable, subslice_mask;
u8 eu_mask = 0xff;
fuse2 = I915_READ(GEN8_FUSE2);
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;
+
/*
* The subslice disable field is global, i.e. it applies
* to each of the enabled slices.
*/
- sseu->subslice_mask = (1 << ss_max) - 1;
- sseu->subslice_mask &= ~((fuse2 & GEN9_F2_SS_DIS_MASK) >>
- GEN9_F2_SS_DIS_SHIFT);
+ subslice_mask = (1 << sseu->max_subslices) - 1;
+ subslice_mask &= ~((fuse2 & GEN9_F2_SS_DIS_MASK) >>
+ GEN9_F2_SS_DIS_SHIFT);
/*
* Iterate through enabled slices and subslices to
* count the total enabled EU.
*/
- for (s = 0; s < s_max; s++) {
+ for (s = 0; s < sseu->max_slices; s++) {
if (!(sseu->slice_mask & BIT(s)))
/* skip disabled slice */
continue;
+ sseu->subslices_mask[s] = subslice_mask;
+
eu_disable = I915_READ(GEN9_EU_DISABLE(s));
- for (ss = 0; ss < ss_max; ss++) {
+ for (ss = 0; ss < sseu->max_subslices; ss++) {
int eu_per_ss;
- if (!(sseu->subslice_mask & BIT(ss)))
+ if (!(sseu->subslices_mask[s] & BIT(ss)))
/* skip disabled subslice */
continue;
- eu_per_ss = eu_max - hweight8((eu_disable >> (ss*8)) &
- eu_mask);
+ sseu->eu_mask[ss + s * sseu->max_subslices] =
+ ~((eu_disable >> (ss*8)) & eu_mask);
+
+ eu_per_ss = sseu->max_eus_per_subslice -
+ hweight8((eu_disable >> (ss*8)) & eu_mask);
/*
* Record which subslice(s) has(have) 7 EUs. we
@@ -202,11 +267,11 @@ static void gen9_sseu_info_init(struct drm_i915_private *dev_priv)
*/
if (eu_per_ss == 7)
sseu->subslice_7eu[s] |= BIT(ss);
-
- sseu->eu_total += eu_per_ss;
}
}
+ sseu->eu_total = compute_eu_total(sseu);
+
/*
* SKL is expected to always have a uniform distribution
* of EU across subslices with the exception that any one
@@ -232,8 +297,8 @@ static void gen9_sseu_info_init(struct drm_i915_private *dev_priv)
sseu->has_eu_pg = sseu->eu_per_subslice > 2;
if (IS_GEN9_LP(dev_priv)) {
-#define IS_SS_DISABLED(ss) (!(sseu->subslice_mask & BIT(ss)))
- info->has_pooled_eu = hweight8(sseu->subslice_mask) == 3;
+#define IS_SS_DISABLED(ss) (!(sseu->subslices_mask[0] & BIT(ss)))
+ info->has_pooled_eu = hweight8(sseu->subslices_mask[0]) == 3;
sseu->min_eu_in_pool = 0;
if (info->has_pooled_eu) {
@@ -251,19 +316,22 @@ static void gen9_sseu_info_init(struct drm_i915_private *dev_priv)
static void broadwell_sseu_info_init(struct drm_i915_private *dev_priv)
{
struct sseu_dev_info *sseu = &mkwrite_device_info(dev_priv)->sseu;
- const int s_max = 3, ss_max = 3, eu_max = 8;
int s, ss;
- u32 fuse2, eu_disable[3]; /* s_max */
+ u32 fuse2, subslice_mask, eu_disable[3]; /* s_max */
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;
+
/*
* The subslice disable field is global, i.e. it applies
* to each of the enabled slices.
*/
- sseu->subslice_mask = GENMASK(ss_max - 1, 0);
- sseu->subslice_mask &= ~((fuse2 & GEN8_F2_SS_DIS_MASK) >>
- GEN8_F2_SS_DIS_SHIFT);
+ subslice_mask = GENMASK(sseu->max_subslices - 1, 0);
+ subslice_mask &= ~((fuse2 & GEN8_F2_SS_DIS_MASK) >>
+ GEN8_F2_SS_DIS_SHIFT);
eu_disable[0] = I915_READ(GEN8_EU_DISABLE0) & GEN8_EU_DIS0_S0_MASK;
eu_disable[1] = (I915_READ(GEN8_EU_DISABLE0) >> GEN8_EU_DIS0_S1_SHIFT) |
@@ -277,30 +345,36 @@ static void broadwell_sseu_info_init(struct drm_i915_private *dev_priv)
* Iterate through enabled slices and subslices to
* count the total enabled EU.
*/
- for (s = 0; s < s_max; s++) {
+ for (s = 0; s < sseu->max_slices; s++) {
if (!(sseu->slice_mask & BIT(s)))
/* skip disabled slice */
continue;
- for (ss = 0; ss < ss_max; ss++) {
+ sseu->subslices_mask[s] = subslice_mask;
+
+ for (ss = 0; ss < sseu->max_subslices; ss++) {
u32 n_disabled;
- if (!(sseu->subslice_mask & BIT(ss)))
+ if (!(sseu->subslices_mask[ss] & BIT(ss)))
/* skip disabled subslice */
continue;
- n_disabled = hweight8(eu_disable[s] >> (ss * eu_max));
+ sseu->eu_mask[ss + s * sseu->max_subslices] =
+ ~(eu_disable[s] >>
+ (ss * sseu->max_eus_per_subslice));
+ n_disabled = hweight8(eu_disable[s] >>
+ (ss * sseu->max_eus_per_subslice));
/*
* Record which subslices have 7 EUs.
*/
- if (eu_max - n_disabled == 7)
+ if (sseu->max_eus_per_subslice - n_disabled == 7)
sseu->subslice_7eu[s] |= 1 << ss;
-
- sseu->eu_total += eu_max - n_disabled;
}
}
+ sseu->eu_total = compute_eu_total(sseu);
+
/*
* BDW is expected to always have a uniform distribution of EU across
* subslices with the exception that any one EU in any one subslice may
@@ -437,6 +511,7 @@ void intel_device_info_runtime_init(struct drm_i915_private *dev_priv)
{
struct intel_device_info *info = mkwrite_device_info(dev_priv);
enum pipe pipe;
+ int s;
if (INTEL_GEN(dev_priv) >= 10) {
for_each_pipe(dev_priv, pipe)
@@ -548,9 +623,11 @@ void intel_device_info_runtime_init(struct drm_i915_private *dev_priv)
DRM_DEBUG_DRIVER("slice total: %u\n", hweight8(info->sseu.slice_mask));
DRM_DEBUG_DRIVER("subslice total: %u\n",
sseu_subslice_total(&info->sseu));
- DRM_DEBUG_DRIVER("subslice mask %04x\n", info->sseu.subslice_mask);
- DRM_DEBUG_DRIVER("subslice per slice: %u\n",
- hweight8(info->sseu.subslice_mask));
+ for (s = 0; s < ARRAY_SIZE(info->sseu.subslices_mask); s++) {
+ DRM_DEBUG_DRIVER("subslice mask %04x\n", info->sseu.subslices_mask[s]);
+ DRM_DEBUG_DRIVER("subslice per slice: %u\n",
+ hweight8(info->sseu.subslices_mask[s]));
+ }
DRM_DEBUG_DRIVER("EU total: %u\n", info->sseu.eu_total);
DRM_DEBUG_DRIVER("EU per subslice: %u\n", info->sseu.eu_per_subslice);
DRM_DEBUG_DRIVER("has slice power gating: %s\n",
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 2a8160f603ab..bbc724b1ab56 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -2073,7 +2073,7 @@ make_rpcs(struct drm_i915_private *dev_priv)
if (INTEL_INFO(dev_priv)->sseu.has_subslice_pg) {
rpcs |= GEN8_RPCS_SS_CNT_ENABLE;
- rpcs |= hweight8(INTEL_INFO(dev_priv)->sseu.subslice_mask) <<
+ rpcs |= hweight8(INTEL_INFO(dev_priv)->sseu.subslices_mask[0]) <<
GEN8_RPCS_SS_CNT_SHIFT;
rpcs |= GEN8_RPCS_ENABLE;
}
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index c68ab3ead83c..9c4434438965 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -90,7 +90,7 @@ hangcheck_action_to_str(const enum intel_engine_hangcheck_action a)
#define instdone_subslice_mask(dev_priv__) \
(INTEL_GEN(dev_priv__) == 7 ? \
- 1 : INTEL_INFO(dev_priv__)->sseu.subslice_mask)
+ 1 : INTEL_INFO(dev_priv__)->sseu.subslices_mask[0])
#define for_each_instdone_slice_subslice(dev_priv__, slice__, subslice__) \
for ((slice__) = 0, (subslice__) = 0; \
--
2.15.1
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