[Intel-gfx] [PATCH 5/5] drm/i915: Expand subslice mask
Daniele Ceraolo Spurio
daniele.ceraolospurio at intel.com
Thu May 16 22:40:10 UTC 2019
<snip>
> --- a/drivers/gpu/drm/i915/gt/intel_sseu.h
> +++ b/drivers/gpu/drm/i915/gt/intel_sseu.h
> @@ -9,16 +9,18 @@
>
> #include <linux/types.h>
> #include <linux/kernel.h>
> +#include <linux/string.h>
AFAICS this header is not needed anymore. With it removed:
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
Daniele
>
> struct drm_i915_private;
>
> #define GEN_MAX_SLICES (6) /* CNL upper bound */
> #define GEN_MAX_SUBSLICES (8) /* ICL upper bound */
> #define GEN_SSEU_STRIDE(max_entries) DIV_ROUND_UP(max_entries, BITS_PER_BYTE)
> +#define GEN_MAX_SUBSLICE_STRIDE GEN_SSEU_STRIDE(GEN_MAX_SUBSLICES)
>
> struct sseu_dev_info {
> u8 slice_mask;
> - u8 subslice_mask[GEN_MAX_SLICES];
> + u8 subslice_mask[GEN_MAX_SLICES * GEN_MAX_SUBSLICE_STRIDE];
> u16 eu_total;
> u8 eu_per_subslice;
> u8 min_eu_in_pool;
> @@ -33,6 +35,9 @@ struct sseu_dev_info {
> u8 max_subslices;
> 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
> * subslice.
> @@ -63,12 +68,33 @@ 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);
> +
> unsigned int
> intel_sseu_subslice_total(const struct sseu_dev_info *sseu);
>
> unsigned int
> intel_sseu_subslices_per_slice(const struct sseu_dev_info *sseu, u8 slice);
>
> +void intel_sseu_copy_subslices(const struct sseu_dev_info *sseu, int slice,
> + u8 *to_mask);
> +
> +u32 intel_sseu_get_subslices(const struct sseu_dev_info *sseu, u8 slice);
> +
> +void intel_sseu_set_subslices(struct sseu_dev_info *sseu, int slice,
> + u32 ss_mask);
> +
> u32 intel_sseu_make_rpcs(struct drm_i915_private *i915,
> const struct intel_sseu *req_sseu);
>
> diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> index 43e290306551..8437f9d918ec 100644
> --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
> +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> @@ -767,7 +767,7 @@ wa_init_mcr(struct drm_i915_private *i915, struct i915_wa_list *wal)
> u32 slice = fls(sseu->slice_mask);
> u32 fuse3 =
> intel_uncore_read(&i915->uncore, GEN10_MIRROR_FUSE3);
> - u8 ss_mask = sseu->subslice_mask[slice];
> + u32 ss_mask = intel_sseu_get_subslices(sseu, slice);
>
> u8 enabled_mask = (ss_mask | ss_mask >>
> GEN10_L3BANK_PAIR_COUNT) & GEN10_L3BANK_MASK;
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> index a26015722405..46365ab957e6 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -1259,6 +1259,7 @@ static void i915_instdone_info(struct drm_i915_private *dev_priv,
> struct seq_file *m,
> struct intel_instdone *instdone)
> {
> + struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu;
> int slice;
> int subslice;
>
> @@ -1274,11 +1275,11 @@ static void i915_instdone_info(struct drm_i915_private *dev_priv,
> if (INTEL_GEN(dev_priv) <= 6)
> return;
>
> - for_each_instdone_slice_subslice(dev_priv, slice, subslice)
> + for_each_instdone_slice_subslice(dev_priv, sseu, slice, subslice)
> seq_printf(m, "\t\tSAMPLER_INSTDONE[%d][%d]: 0x%08x\n",
> slice, subslice, instdone->sampler[slice][subslice]);
>
> - for_each_instdone_slice_subslice(dev_priv, slice, subslice)
> + for_each_instdone_slice_subslice(dev_priv, sseu, slice, subslice)
> seq_printf(m, "\t\tROW_INSTDONE[%d][%d]: 0x%08x\n",
> slice, subslice, instdone->row[slice][subslice]);
> }
> @@ -4072,7 +4073,7 @@ static void gen10_sseu_device_status(struct drm_i915_private *dev_priv,
> continue;
>
> sseu->slice_mask |= BIT(s);
> - sseu->subslice_mask[s] = info->sseu.subslice_mask[s];
> + intel_sseu_copy_subslices(&info->sseu, s, sseu->subslice_mask);
>
> for (ss = 0; ss < info->sseu.max_subslices; ss++) {
> unsigned int eu_cnt;
> @@ -4123,18 +4124,21 @@ 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[s] =
> - RUNTIME_INFO(dev_priv)->sseu.subslice_mask[s];
> + intel_sseu_copy_subslices(&info->sseu, s,
> + sseu->subslice_mask);
>
> for (ss = 0; ss < info->sseu.max_subslices; ss++) {
> unsigned int eu_cnt;
> + u8 ss_idx = s * info->sseu.ss_stride +
> + ss / BITS_PER_BYTE;
>
> if (IS_GEN9_LP(dev_priv)) {
> if (!(s_reg[s] & (GEN9_PGCTL_SS_ACK(ss))))
> /* skip disabled subslice */
> continue;
>
> - sseu->subslice_mask[s] |= BIT(ss);
> + sseu->subslice_mask[ss_idx] |=
> + BIT(ss % BITS_PER_BYTE);
> }
>
> eu_cnt = 2 * hweight32(eu_reg[2*s + ss/2] &
> @@ -4151,25 +4155,23 @@ static void gen9_sseu_device_status(struct drm_i915_private *dev_priv,
> static void broadwell_sseu_device_status(struct drm_i915_private *dev_priv,
> struct sseu_dev_info *sseu)
> {
> + struct intel_runtime_info *info = RUNTIME_INFO(dev_priv);
> u32 slice_info = I915_READ(GEN8_GT_SLICE_INFO);
> int s;
>
> sseu->slice_mask = slice_info & GEN8_LSLICESTAT_MASK;
>
> if (sseu->slice_mask) {
> - sseu->eu_per_subslice =
> - RUNTIME_INFO(dev_priv)->sseu.eu_per_subslice;
> - for (s = 0; s < fls(sseu->slice_mask); s++) {
> - sseu->subslice_mask[s] =
> - RUNTIME_INFO(dev_priv)->sseu.subslice_mask[s];
> - }
> + sseu->eu_per_subslice = info->sseu.eu_per_subslice;
> + for (s = 0; s < fls(sseu->slice_mask); s++)
> + intel_sseu_copy_subslices(&info->sseu, s,
> + sseu->subslice_mask);
> sseu->eu_total = sseu->eu_per_subslice *
> intel_sseu_subslice_total(sseu);
>
> /* subtract fused off EU(s) from enabled slice(s) */
> for (s = 0; s < fls(sseu->slice_mask); s++) {
> - u8 subslice_7eu =
> - RUNTIME_INFO(dev_priv)->sseu.subslice_7eu[s];
> + u8 subslice_7eu = info->sseu.subslice_7eu[s];
>
> sseu->eu_total -= hweight8(subslice_7eu);
> }
> @@ -4216,6 +4218,7 @@ static void i915_print_sseu_info(struct seq_file *m, bool is_available_info,
> static int i915_sseu_status(struct seq_file *m, void *unused)
> {
> struct drm_i915_private *dev_priv = node_to_i915(m->private);
> + const struct intel_runtime_info *info = RUNTIME_INFO(dev_priv);
> struct sseu_dev_info sseu;
> intel_wakeref_t wakeref;
>
> @@ -4223,14 +4226,13 @@ static int i915_sseu_status(struct seq_file *m, void *unused)
> return -ENODEV;
>
> seq_puts(m, "SSEU Device Info\n");
> - i915_print_sseu_info(m, true, &RUNTIME_INFO(dev_priv)->sseu);
> + i915_print_sseu_info(m, true, &info->sseu);
>
> seq_puts(m, "SSEU Device Status\n");
> memset(&sseu, 0, sizeof(sseu));
> - sseu.max_slices = RUNTIME_INFO(dev_priv)->sseu.max_slices;
> - sseu.max_subslices = RUNTIME_INFO(dev_priv)->sseu.max_subslices;
> - sseu.max_eus_per_subslice =
> - RUNTIME_INFO(dev_priv)->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, wakeref) {
> if (IS_CHERRYVIEW(dev_priv))
> diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
> index 8a7d4dea8609..dc6bafc09b36 100644
> --- a/drivers/gpu/drm/i915/i915_drv.c
> +++ b/drivers/gpu/drm/i915/i915_drv.c
> @@ -331,7 +331,7 @@ static int i915_getparam_ioctl(struct drm_device *dev, void *data,
> struct pci_dev *pdev = dev_priv->drm.pdev;
> const struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu;
> drm_i915_getparam_t *param = data;
> - int value;
> + int value = 0;
>
> switch (param->param) {
> case I915_PARAM_IRQ_ACTIVE:
> @@ -460,7 +460,9 @@ static int i915_getparam_ioctl(struct drm_device *dev, void *data,
> return -ENODEV;
> break;
> case I915_PARAM_SUBSLICE_MASK:
> - value = sseu->subslice_mask[0];
> + /* Only copy bits from the first slice */
> + memcpy(&value, sseu->subslice_mask,
> + min(sseu->ss_stride, (u8)sizeof(value)));
> if (!value)
> return -ENODEV;
> break;
> diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
> index 4f85cbdddb0d..c760cc5b3388 100644
> --- a/drivers/gpu/drm/i915/i915_gpu_error.c
> +++ b/drivers/gpu/drm/i915/i915_gpu_error.c
> @@ -408,6 +408,7 @@ static void print_error_buffers(struct drm_i915_error_state_buf *m,
> static void error_print_instdone(struct drm_i915_error_state_buf *m,
> const struct drm_i915_error_engine *ee)
> {
> + struct sseu_dev_info *sseu = &RUNTIME_INFO(m->i915)->sseu;
> int slice;
> int subslice;
>
> @@ -423,12 +424,12 @@ static void error_print_instdone(struct drm_i915_error_state_buf *m,
> if (INTEL_GEN(m->i915) <= 6)
> return;
>
> - for_each_instdone_slice_subslice(m->i915, slice, subslice)
> + for_each_instdone_slice_subslice(m->i915, sseu, slice, subslice)
> err_printf(m, " SAMPLER_INSTDONE[%d][%d]: 0x%08x\n",
> slice, subslice,
> ee->instdone.sampler[slice][subslice]);
>
> - for_each_instdone_slice_subslice(m->i915, slice, subslice)
> + for_each_instdone_slice_subslice(m->i915, sseu, slice, subslice)
> err_printf(m, " ROW_INSTDONE[%d][%d]: 0x%08x\n",
> slice, subslice,
> ee->instdone.row[slice][subslice]);
> diff --git a/drivers/gpu/drm/i915/i915_query.c b/drivers/gpu/drm/i915/i915_query.c
> index 7c1708c22811..000dcb145ce0 100644
> --- a/drivers/gpu/drm/i915/i915_query.c
> +++ b/drivers/gpu/drm/i915/i915_query.c
> @@ -37,8 +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 subslice_stride = GEN_SSEU_STRIDE(sseu->max_subslices);
> - u8 eu_stride = GEN_SSEU_STRIDE(sseu->max_eus_per_subslice);
> int ret;
>
> if (query_item->flags != 0)
> @@ -50,8 +48,8 @@ static int query_topology_info(struct drm_i915_private *dev_priv,
> BUILD_BUG_ON(sizeof(u8) != sizeof(sseu->slice_mask));
>
> slice_length = sizeof(sseu->slice_mask);
> - subslice_length = sseu->max_slices * subslice_stride;
> - eu_length = sseu->max_slices * sseu->max_subslices * eu_stride;
> + subslice_length = sseu->max_slices * sseu->ss_stride;
> + eu_length = sseu->max_slices * sseu->max_subslices * sseu->eu_stride;
> total_length = sizeof(topo) + slice_length + subslice_length +
> eu_length;
>
> @@ -69,9 +67,9 @@ static int query_topology_info(struct drm_i915_private *dev_priv,
> topo.max_eus_per_subslice = sseu->max_eus_per_subslice;
>
> topo.subslice_offset = slice_length;
> - topo.subslice_stride = subslice_stride;
> + 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 97f742530fa1..3625f777f3a3 100644
> --- a/drivers/gpu/drm/i915/intel_device_info.c
> +++ b/drivers/gpu/drm/i915/intel_device_info.c
> @@ -92,9 +92,9 @@ static void sseu_dump(const struct sseu_dev_info *sseu, struct drm_printer *p)
> hweight8(sseu->slice_mask), sseu->slice_mask);
> drm_printf(p, "subslice total: %u\n", intel_sseu_subslice_total(sseu));
> for (s = 0; s < sseu->max_slices; s++) {
> - drm_printf(p, "slice%d: %u subslices, mask=%04x\n",
> + drm_printf(p, "slice%d: %u subslices, mask=%08x\n",
> s, intel_sseu_subslices_per_slice(sseu, s),
> - sseu->subslice_mask[s]);
> + intel_sseu_get_subslices(sseu, s));
> }
> drm_printf(p, "EU total: %u\n", sseu->eu_total);
> drm_printf(p, "EU per subslice: %u\n", sseu->eu_per_subslice);
> @@ -117,10 +117,9 @@ 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,
> @@ -129,7 +128,7 @@ 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);
> }
> @@ -142,7 +141,7 @@ 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;
> }
> @@ -159,9 +158,9 @@ 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",
> + drm_printf(p, "slice%d: %u subslice(s) (0x%08x):\n",
> s, intel_sseu_subslices_per_slice(sseu, s),
> - sseu->subslice_mask[s]);
> + intel_sseu_get_subslices(sseu, s));
>
> for (ss = 0; ss < sseu->max_subslices; ss++) {
> u16 enabled_eus = sseu_get_eus(sseu, s, ss);
> @@ -190,15 +189,10 @@ 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);
> @@ -207,15 +201,15 @@ static void gen11_sseu_info_init(struct drm_i915_private *dev_priv)
>
> for (s = 0; s < sseu->max_slices; s++) {
> if (s_en & BIT(s)) {
> - int ss_idx = sseu->max_subslices * s;
> int ss;
>
> sseu->slice_mask |= BIT(s);
> - sseu->subslice_mask[s] = (ss_en >> ss_idx) & ss_en_mask;
> - for (ss = 0; ss < sseu->max_subslices; ss++) {
> - if (sseu->subslice_mask[s] & BIT(ss))
> +
> + intel_sseu_set_subslices(sseu, s, ss_en_mask);
> +
> + 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);
> @@ -235,23 +229,10 @@ 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) >>
> - GEN10_F2_SS_DIS_SHIFT);
> -
> - /*
> - * Slice0 can have up to 3 subslices, but there are only 2 in
> - * slice1/2.
> - */
> - sseu->subslice_mask[0] = subslice_mask;
> - for (s = 1; s < sseu->max_slices; s++)
> - sseu->subslice_mask[s] = subslice_mask & 0x3;
>
> /* Slice0 */
> eu_en = ~I915_READ(GEN8_EU_DISABLE0);
> @@ -276,14 +257,22 @@ static void gen10_sseu_info_init(struct drm_i915_private *dev_priv)
> eu_en = ~I915_READ(GEN10_EU_DISABLE3);
> sseu_set_eus(sseu, 5, 1, eu_en & eu_mask);
>
> - /* Do a second pass where we mark the subslices disabled if all their
> - * eus are off.
> - */
> + subslice_mask = (1 << 4) - 1;
> + subslice_mask &= ~((fuse2 & GEN10_F2_SS_DIS_MASK) >>
> + GEN10_F2_SS_DIS_SHIFT);
> +
> for (s = 0; s < sseu->max_slices; s++) {
> for (ss = 0; ss < sseu->max_subslices; ss++) {
> if (sseu_get_eus(sseu, s, ss) == 0)
> - sseu->subslice_mask[s] &= ~BIT(ss);
> + subslice_mask &= ~BIT(ss);
> }
> +
> + /*
> + * Slice0 can have up to 3 subslices, but there are only 2 in
> + * slice1/2.
> + */
> + intel_sseu_set_subslices(sseu, s, s == 0 ? subslice_mask :
> + subslice_mask & 0x3);
> }
>
> sseu->eu_total = compute_eu_total(sseu);
> @@ -309,13 +298,12 @@ static void cherryview_sseu_info_init(struct drm_i915_private *dev_priv)
> {
> struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu;
> u32 fuse;
> + u8 subslice_mask;
>
> 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 =
> @@ -324,7 +312,7 @@ static void cherryview_sseu_info_init(struct drm_i915_private *dev_priv)
> (((fuse & CHV_FGT_EU_DIS_SS0_R1_MASK) >>
> CHV_FGT_EU_DIS_SS0_R1_SHIFT) << 4);
>
> - sseu->subslice_mask[0] |= BIT(0);
> + subslice_mask |= BIT(0);
> sseu_set_eus(sseu, 0, 0, ~disabled_mask);
> }
>
> @@ -335,10 +323,12 @@ static void cherryview_sseu_info_init(struct drm_i915_private *dev_priv)
> (((fuse & CHV_FGT_EU_DIS_SS1_R1_MASK) >>
> CHV_FGT_EU_DIS_SS1_R1_SHIFT) << 4);
>
> - sseu->subslice_mask[0] |= BIT(1);
> + subslice_mask |= BIT(1);
> sseu_set_eus(sseu, 0, 1, ~disabled_mask);
> }
>
> + intel_sseu_set_subslices(sseu, 0, subslice_mask);
> +
> sseu->eu_total = compute_eu_total(sseu);
>
> /*
> @@ -371,9 +361,8 @@ 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
> @@ -392,14 +381,14 @@ static void gen9_sseu_info_init(struct drm_i915_private *dev_priv)
> /* skip disabled slice */
> continue;
>
> - sseu->subslice_mask[s] = subslice_mask;
> + intel_sseu_set_subslices(sseu, s, subslice_mask);
>
> eu_disable = I915_READ(GEN9_EU_DISABLE(s));
> for (ss = 0; ss < sseu->max_subslices; ss++) {
> 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;
>
> @@ -472,9 +461,7 @@ 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
> @@ -501,18 +488,19 @@ static void broadwell_sseu_info_init(struct drm_i915_private *dev_priv)
> /* skip disabled slice */
> continue;
>
> - sseu->subslice_mask[s] = subslice_mask;
> + intel_sseu_set_subslices(sseu, s, subslice_mask);
>
> for (ss = 0; ss < sseu->max_subslices; ss++) {
> 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;
>
> eu_disabled_mask =
> - eu_disable[s] >> (ss * sseu->max_eus_per_subslice);
> + eu_disable[s] >>
> + (ss * sseu->max_eus_per_subslice);
>
> sseu_set_eus(sseu, s, ss, ~eu_disabled_mask);
>
> @@ -552,6 +540,7 @@ static void haswell_sseu_info_init(struct drm_i915_private *dev_priv)
> struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu;
> u32 fuse1;
> int s, ss;
> + u32 subslice_mask;
>
> /*
> * There isn't a register to tell us how many slices/subslices. We
> @@ -563,22 +552,18 @@ static void haswell_sseu_info_init(struct drm_i915_private *dev_priv)
> /* fall through */
> case 1:
> sseu->slice_mask = BIT(0);
> - sseu->subslice_mask[0] = BIT(0);
> + subslice_mask = BIT(0);
> break;
> case 2:
> sseu->slice_mask = BIT(0);
> - sseu->subslice_mask[0] = BIT(0) | BIT(1);
> + subslice_mask = BIT(0) | BIT(1);
> break;
> case 3:
> sseu->slice_mask = BIT(0) | BIT(1);
> - sseu->subslice_mask[0] = BIT(0) | BIT(1);
> - sseu->subslice_mask[1] = BIT(0) | BIT(1);
> + subslice_mask = BIT(0) | BIT(1);
> 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:
> @@ -595,9 +580,14 @@ 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(subslice_mask),
> + sseu->eu_per_subslice);
>
> for (s = 0; s < sseu->max_slices; s++) {
> + intel_sseu_set_subslices(sseu, s, subslice_mask);
> +
> for (ss = 0; ss < sseu->max_subslices; ss++) {
> sseu_set_eus(sseu, s, ss,
> (1UL << sseu->eu_per_subslice) - 1);
>
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