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Commit 9b413f01 authored by Daniele Ceraolo Spurio's avatar Daniele Ceraolo Spurio Committed by Chris Wilson
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drm/i915/sseu: Move sseu detection and dump to intel_sseu 

Keep all the SSEU code in the relevant file. The code has also been
updated to use intel_gt instead of dev_priv.

Based on an original patch by Sandeep.
Signed-off-by: default avatarDaniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Andi Shyti <andi.shyti@intel.com>
Cc: Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@intel.com>
Reviewed-by: default avatarTvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20200708003952.21831-7-daniele.ceraolospurio@intel.com
parent d0eb6866
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Showing with 599 additions and 586 deletions
drivers/gpu/drm/i915/gt/intel_gt.c
View file @ 9b413f01
......@@ -47,6 +47,7 @@ void intel_gt_init_hw_early(struct intel_gt *gt, struct i915_ggtt *ggtt)
int intel_gt_init_mmio(struct intel_gt *gt)
{
intel_uc_init_mmio(&gt->uc);
intel_sseu_info_init(gt);
return intel_engines_init_mmio(gt);
}
......
drivers/gpu/drm/i915/gt/intel_sseu.c
View file @ 9b413f01
......@@ -60,6 +60,547 @@ intel_sseu_subslices_per_slice(const struct sseu_dev_info *sseu, u8 slice)
return hweight32(intel_sseu_get_subslices(sseu, slice));
}
static int sseu_eu_idx(const struct sseu_dev_info *sseu, int slice,
int subslice)
{
int slice_stride = sseu->max_subslices * sseu->eu_stride;
return slice * slice_stride + subslice * sseu->eu_stride;
}
static u16 sseu_get_eus(const struct sseu_dev_info *sseu, int slice,
int subslice)
{
int i, offset = sseu_eu_idx(sseu, slice, subslice);
u16 eu_mask = 0;
for (i = 0; i < sseu->eu_stride; i++)
eu_mask |=
((u16)sseu->eu_mask[offset + i]) << (i * BITS_PER_BYTE);
return eu_mask;
}
static void sseu_set_eus(struct sseu_dev_info *sseu, int slice, int subslice,
u16 eu_mask)
{
int i, offset = sseu_eu_idx(sseu, slice, subslice);
for (i = 0; i < sseu->eu_stride; i++)
sseu->eu_mask[offset + i] =
(eu_mask >> (BITS_PER_BYTE * i)) & 0xff;
}
static u16 compute_eu_total(const struct sseu_dev_info *sseu)
{
u16 i, total = 0;
for (i = 0; i < ARRAY_SIZE(sseu->eu_mask); i++)
total += hweight8(sseu->eu_mask[i]);
return total;
}
static void gen11_compute_sseu_info(struct sseu_dev_info *sseu,
u8 s_en, u32 ss_en, u16 eu_en)
{
int s, ss;
/* ss_en represents entire subslice mask across all slices */
GEM_BUG_ON(sseu->max_slices * sseu->max_subslices >
sizeof(ss_en) * BITS_PER_BYTE);
for (s = 0; s < sseu->max_slices; s++) {
if ((s_en & BIT(s)) == 0)
continue;
sseu->slice_mask |= BIT(s);
intel_sseu_set_subslices(sseu, s, ss_en);
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 = hweight16(eu_en);
sseu->eu_total = compute_eu_total(sseu);
}
static void gen12_sseu_info_init(struct intel_gt *gt)
{
struct sseu_dev_info *sseu = &RUNTIME_INFO(gt->i915)->sseu;
struct intel_uncore *uncore = gt->uncore;
u32 dss_en;
u16 eu_en = 0;
u8 eu_en_fuse;
u8 s_en;
int eu;
/*
* Gen12 has Dual-Subslices, which behave similarly to 2 gen11 SS.
* Instead of splitting these, provide userspace with an array
* of DSS to more closely represent the hardware resource.
*/
intel_sseu_set_info(sseu, 1, 6, 16);
s_en = intel_uncore_read(uncore, GEN11_GT_SLICE_ENABLE) &
GEN11_GT_S_ENA_MASK;
dss_en = intel_uncore_read(uncore, GEN12_GT_DSS_ENABLE);
/* one bit per pair of EUs */
eu_en_fuse = ~(intel_uncore_read(uncore, GEN11_EU_DISABLE) &
GEN11_EU_DIS_MASK);
for (eu = 0; eu < sseu->max_eus_per_subslice / 2; eu++)
if (eu_en_fuse & BIT(eu))
eu_en |= BIT(eu * 2) | BIT(eu * 2 + 1);
gen11_compute_sseu_info(sseu, s_en, dss_en, eu_en);
/* TGL only supports slice-level power gating */
sseu->has_slice_pg = 1;
}
static void gen11_sseu_info_init(struct intel_gt *gt)
{
struct sseu_dev_info *sseu = &RUNTIME_INFO(gt->i915)->sseu;
struct intel_uncore *uncore = gt->uncore;
u32 ss_en;
u8 eu_en;
u8 s_en;
if (IS_ELKHARTLAKE(gt->i915))
intel_sseu_set_info(sseu, 1, 4, 8);
else
intel_sseu_set_info(sseu, 1, 8, 8);
s_en = intel_uncore_read(uncore, GEN11_GT_SLICE_ENABLE) &
GEN11_GT_S_ENA_MASK;
ss_en = ~intel_uncore_read(uncore, GEN11_GT_SUBSLICE_DISABLE);
eu_en = ~(intel_uncore_read(uncore, GEN11_EU_DISABLE) &
GEN11_EU_DIS_MASK);
gen11_compute_sseu_info(sseu, s_en, ss_en, eu_en);
/* ICL has no power gating restrictions. */
sseu->has_slice_pg = 1;
sseu->has_subslice_pg = 1;
sseu->has_eu_pg = 1;
}
static void gen10_sseu_info_init(struct intel_gt *gt)
{
struct intel_uncore *uncore = gt->uncore;
struct sseu_dev_info *sseu = &RUNTIME_INFO(gt->i915)->sseu;
const u32 fuse2 = intel_uncore_read(uncore, GEN8_FUSE2);
const int eu_mask = 0xff;
u32 subslice_mask, eu_en;
int s, ss;
intel_sseu_set_info(sseu, 6, 4, 8);
sseu->slice_mask = (fuse2 & GEN10_F2_S_ENA_MASK) >>
GEN10_F2_S_ENA_SHIFT;
/* Slice0 */
eu_en = ~intel_uncore_read(uncore, GEN8_EU_DISABLE0);
for (ss = 0; ss < sseu->max_subslices; ss++)
sseu_set_eus(sseu, 0, ss, (eu_en >> (8 * ss)) & eu_mask);
/* Slice1 */
sseu_set_eus(sseu, 1, 0, (eu_en >> 24) & eu_mask);
eu_en = ~intel_uncore_read(uncore, GEN8_EU_DISABLE1);
sseu_set_eus(sseu, 1, 1, eu_en & eu_mask);
/* Slice2 */
sseu_set_eus(sseu, 2, 0, (eu_en >> 8) & eu_mask);
sseu_set_eus(sseu, 2, 1, (eu_en >> 16) & eu_mask);
/* Slice3 */
sseu_set_eus(sseu, 3, 0, (eu_en >> 24) & eu_mask);
eu_en = ~intel_uncore_read(uncore, GEN8_EU_DISABLE2);
sseu_set_eus(sseu, 3, 1, eu_en & eu_mask);
/* Slice4 */
sseu_set_eus(sseu, 4, 0, (eu_en >> 8) & eu_mask);
sseu_set_eus(sseu, 4, 1, (eu_en >> 16) & eu_mask);
/* Slice5 */
sseu_set_eus(sseu, 5, 0, (eu_en >> 24) & eu_mask);
eu_en = ~intel_uncore_read(uncore, GEN10_EU_DISABLE3);
sseu_set_eus(sseu, 5, 1, eu_en & eu_mask);
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++) {
u32 subslice_mask_with_eus = subslice_mask;
for (ss = 0; ss < sseu->max_subslices; ss++) {
if (sseu_get_eus(sseu, s, ss) == 0)
subslice_mask_with_eus &= ~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_with_eus :
subslice_mask_with_eus & 0x3);
}
sseu->eu_total = compute_eu_total(sseu);
/*
* CNL is expected to always have a uniform distribution
* of EU across subslices with the exception that any one
* EU in any one subslice may be fused off for die
* recovery.
*/
sseu->eu_per_subslice =
intel_sseu_subslice_total(sseu) ?
DIV_ROUND_UP(sseu->eu_total, intel_sseu_subslice_total(sseu)) :
0;
/* No restrictions on Power Gating */
sseu->has_slice_pg = 1;
sseu->has_subslice_pg = 1;
sseu->has_eu_pg = 1;
}
static void cherryview_sseu_info_init(struct intel_gt *gt)
{
struct sseu_dev_info *sseu = &RUNTIME_INFO(gt->i915)->sseu;
u32 fuse;
u8 subslice_mask = 0;
fuse = intel_uncore_read(gt->uncore, CHV_FUSE_GT);
sseu->slice_mask = BIT(0);
intel_sseu_set_info(sseu, 1, 2, 8);
if (!(fuse & CHV_FGT_DISABLE_SS0)) {
u8 disabled_mask =
((fuse & CHV_FGT_EU_DIS_SS0_R0_MASK) >>
CHV_FGT_EU_DIS_SS0_R0_SHIFT) |
(((fuse & CHV_FGT_EU_DIS_SS0_R1_MASK) >>
CHV_FGT_EU_DIS_SS0_R1_SHIFT) << 4);
subslice_mask |= BIT(0);
sseu_set_eus(sseu, 0, 0, ~disabled_mask);
}
if (!(fuse & CHV_FGT_DISABLE_SS1)) {
u8 disabled_mask =
((fuse & CHV_FGT_EU_DIS_SS1_R0_MASK) >>
CHV_FGT_EU_DIS_SS1_R0_SHIFT) |
(((fuse & CHV_FGT_EU_DIS_SS1_R1_MASK) >>
CHV_FGT_EU_DIS_SS1_R1_SHIFT) << 4);
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);
/*
* CHV expected to always have a uniform distribution of EU
* across subslices.
*/
sseu->eu_per_subslice = intel_sseu_subslice_total(sseu) ?
sseu->eu_total /
intel_sseu_subslice_total(sseu) :
0;
/*
* CHV supports subslice power gating on devices with more than
* one subslice, and supports EU power gating on devices with
* more than one EU pair per subslice.
*/
sseu->has_slice_pg = 0;
sseu->has_subslice_pg = intel_sseu_subslice_total(sseu) > 1;
sseu->has_eu_pg = (sseu->eu_per_subslice > 2);
}
static void gen9_sseu_info_init(struct intel_gt *gt)
{
struct drm_i915_private *i915 = gt->i915;
struct intel_device_info *info = mkwrite_device_info(i915);
struct sseu_dev_info *sseu = &RUNTIME_INFO(i915)->sseu;
struct intel_uncore *uncore = gt->uncore;
u32 fuse2, eu_disable, subslice_mask;
const u8 eu_mask = 0xff;
int s, ss;
fuse2 = intel_uncore_read(uncore, 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. */
intel_sseu_set_info(sseu, IS_GEN9_LP(i915) ? 1 : 3,
IS_GEN9_LP(i915) ? 3 : 4, 8);
/*
* The subslice disable field is global, i.e. it applies
* to each of the enabled slices.
*/
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 < sseu->max_slices; s++) {
if (!(sseu->slice_mask & BIT(s)))
/* skip disabled slice */
continue;
intel_sseu_set_subslices(sseu, s, subslice_mask);
eu_disable = intel_uncore_read(uncore, GEN9_EU_DISABLE(s));
for (ss = 0; ss < sseu->max_subslices; ss++) {
int eu_per_ss;
u8 eu_disabled_mask;
if (!intel_sseu_has_subslice(sseu, s, ss))
/* skip disabled subslice */
continue;
eu_disabled_mask = (eu_disable >> (ss * 8)) & eu_mask;
sseu_set_eus(sseu, s, ss, ~eu_disabled_mask);
eu_per_ss = sseu->max_eus_per_subslice -
hweight8(eu_disabled_mask);
/*
* Record which subslice(s) has(have) 7 EUs. we
* can tune the hash used to spread work among
* subslices if they are unbalanced.
*/
if (eu_per_ss == 7)
sseu->subslice_7eu[s] |= BIT(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
* EU in any one subslice may be fused off for die
* recovery. BXT is expected to be perfectly uniform in EU
* distribution.
*/
sseu->eu_per_subslice =
intel_sseu_subslice_total(sseu) ?
DIV_ROUND_UP(sseu->eu_total, intel_sseu_subslice_total(sseu)) :
0;
/*
* SKL+ supports slice power gating on devices with more than
* one slice, and supports EU power gating on devices with
* more than one EU pair per subslice. BXT+ supports subslice
* power gating on devices with more than one subslice, and
* supports EU power gating on devices with more than one EU
* pair per subslice.
*/
sseu->has_slice_pg =
!IS_GEN9_LP(i915) && hweight8(sseu->slice_mask) > 1;
sseu->has_subslice_pg =
IS_GEN9_LP(i915) && intel_sseu_subslice_total(sseu) > 1;
sseu->has_eu_pg = sseu->eu_per_subslice > 2;
if (IS_GEN9_LP(i915)) {
#define IS_SS_DISABLED(ss) (!(sseu->subslice_mask[0] & BIT(ss)))
info->has_pooled_eu = hweight8(sseu->subslice_mask[0]) == 3;
sseu->min_eu_in_pool = 0;
if (info->has_pooled_eu) {
if (IS_SS_DISABLED(2) || IS_SS_DISABLED(0))
sseu->min_eu_in_pool = 3;
else if (IS_SS_DISABLED(1))
sseu->min_eu_in_pool = 6;
else
sseu->min_eu_in_pool = 9;
}
#undef IS_SS_DISABLED
}
}
static void bdw_sseu_info_init(struct intel_gt *gt)
{
struct sseu_dev_info *sseu = &RUNTIME_INFO(gt->i915)->sseu;
struct intel_uncore *uncore = gt->uncore;
int s, ss;
u32 fuse2, subslice_mask, eu_disable[3]; /* s_max */
u32 eu_disable0, eu_disable1, eu_disable2;
fuse2 = intel_uncore_read(uncore, GEN8_FUSE2);
sseu->slice_mask = (fuse2 & GEN8_F2_S_ENA_MASK) >> GEN8_F2_S_ENA_SHIFT;
intel_sseu_set_info(sseu, 3, 3, 8);
/*
* The subslice disable field is global, i.e. it applies
* to each of the enabled slices.
*/
subslice_mask = GENMASK(sseu->max_subslices - 1, 0);
subslice_mask &= ~((fuse2 & GEN8_F2_SS_DIS_MASK) >>
GEN8_F2_SS_DIS_SHIFT);
eu_disable0 = intel_uncore_read(uncore, GEN8_EU_DISABLE0);
eu_disable1 = intel_uncore_read(uncore, GEN8_EU_DISABLE1);
eu_disable2 = intel_uncore_read(uncore, GEN8_EU_DISABLE2);
eu_disable[0] = eu_disable0 & GEN8_EU_DIS0_S0_MASK;
eu_disable[1] = (eu_disable0 >> GEN8_EU_DIS0_S1_SHIFT) |
((eu_disable1 & GEN8_EU_DIS1_S1_MASK) <<
(32 - GEN8_EU_DIS0_S1_SHIFT));
eu_disable[2] = (eu_disable1 >> GEN8_EU_DIS1_S2_SHIFT) |
((eu_disable2 & GEN8_EU_DIS2_S2_MASK) <<
(32 - GEN8_EU_DIS1_S2_SHIFT));
/*
* Iterate through enabled slices and subslices to
* count the total enabled EU.
*/
for (s = 0; s < sseu->max_slices; s++) {
if (!(sseu->slice_mask & BIT(s)))
/* skip disabled slice */
continue;
intel_sseu_set_subslices(sseu, s, subslice_mask);
for (ss = 0; ss < sseu->max_subslices; ss++) {
u8 eu_disabled_mask;
u32 n_disabled;
if (!intel_sseu_has_subslice(sseu, s, ss))
/* skip disabled subslice */
continue;
eu_disabled_mask =
eu_disable[s] >> (ss * sseu->max_eus_per_subslice);
sseu_set_eus(sseu, s, ss, ~eu_disabled_mask);
n_disabled = hweight8(eu_disabled_mask);
/*
* Record which subslices have 7 EUs.
*/
if (sseu->max_eus_per_subslice - n_disabled == 7)
sseu->subslice_7eu[s] |= 1 << ss;
}
}
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
* be fused off for die recovery.
*/
sseu->eu_per_subslice =
intel_sseu_subslice_total(sseu) ?
DIV_ROUND_UP(sseu->eu_total, intel_sseu_subslice_total(sseu)) :
0;
/*
* BDW supports slice power gating on devices with more than
* one slice.
*/
sseu->has_slice_pg = hweight8(sseu->slice_mask) > 1;
sseu->has_subslice_pg = 0;
sseu->has_eu_pg = 0;
}
static void hsw_sseu_info_init(struct intel_gt *gt)
{
struct drm_i915_private *i915 = gt->i915;
struct sseu_dev_info *sseu = &RUNTIME_INFO(gt->i915)->sseu;
u32 fuse1;
u8 subslice_mask = 0;
int s, ss;
/*
* There isn't a register to tell us how many slices/subslices. We
* work off the PCI-ids here.
*/
switch (INTEL_INFO(i915)->gt) {
default:
MISSING_CASE(INTEL_INFO(i915)->gt);
fallthrough;
case 1:
sseu->slice_mask = BIT(0);
subslice_mask = BIT(0);
break;
case 2:
sseu->slice_mask = BIT(0);
subslice_mask = BIT(0) | BIT(1);
break;
case 3:
sseu->slice_mask = BIT(0) | BIT(1);
subslice_mask = BIT(0) | BIT(1);
break;
}
fuse1 = intel_uncore_read(gt->uncore, HSW_PAVP_FUSE1);
switch ((fuse1 & HSW_F1_EU_DIS_MASK) >> HSW_F1_EU_DIS_SHIFT) {
default:
MISSING_CASE((fuse1 & HSW_F1_EU_DIS_MASK) >>
HSW_F1_EU_DIS_SHIFT);
fallthrough;
case HSW_F1_EU_DIS_10EUS:
sseu->eu_per_subslice = 10;
break;
case HSW_F1_EU_DIS_8EUS:
sseu->eu_per_subslice = 8;
break;
case HSW_F1_EU_DIS_6EUS:
sseu->eu_per_subslice = 6;
break;
}
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);
}
}
sseu->eu_total = compute_eu_total(sseu);
/* No powergating for you. */
sseu->has_slice_pg = 0;
sseu->has_subslice_pg = 0;
sseu->has_eu_pg = 0;
}
void intel_sseu_info_init(struct intel_gt *gt)
{
struct drm_i915_private *i915 = gt->i915;
if (IS_HASWELL(i915))
hsw_sseu_info_init(gt);
else if (IS_CHERRYVIEW(i915))
cherryview_sseu_info_init(gt);
else if (IS_BROADWELL(i915))
bdw_sseu_info_init(gt);
else if (IS_GEN(i915, 9))
gen9_sseu_info_init(gt);
else if (IS_GEN(i915, 10))
gen10_sseu_info_init(gt);
else if (IS_GEN(i915, 11))
gen11_sseu_info_init(gt);
else if (INTEL_GEN(i915) >= 12)
gen12_sseu_info_init(gt);
}
u32 intel_sseu_make_rpcs(struct drm_i915_private *i915,
const struct intel_sseu *req_sseu)
{
......@@ -173,3 +714,48 @@ u32 intel_sseu_make_rpcs(struct drm_i915_private *i915,
return rpcs;
}
void intel_sseu_dump(const struct sseu_dev_info *sseu, struct drm_printer *p)
{
int s;
drm_printf(p, "slice total: %u, mask=%04x\n",
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=%08x\n",
s, intel_sseu_subslices_per_slice(sseu, 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);
drm_printf(p, "has slice power gating: %s\n",
yesno(sseu->has_slice_pg));
drm_printf(p, "has subslice power gating: %s\n",
yesno(sseu->has_subslice_pg));
drm_printf(p, "has EU power gating: %s\n", yesno(sseu->has_eu_pg));
}
void intel_sseu_print_topology(const struct sseu_dev_info *sseu,
struct drm_printer *p)
{
int s, ss;
if (sseu->max_slices == 0) {
drm_printf(p, "Unavailable\n");
return;
}
for (s = 0; s < sseu->max_slices; s++) {
drm_printf(p, "slice%d: %u subslice(s) (0x%08x):\n",
s, intel_sseu_subslices_per_slice(sseu, s),
intel_sseu_get_subslices(sseu, s));
for (ss = 0; ss < sseu->max_subslices; ss++) {
u16 enabled_eus = sseu_get_eus(sseu, s, ss);
drm_printf(p, "\tsubslice%d: %u EUs (0x%hx)\n",
ss, hweight16(enabled_eus), enabled_eus);
}
}
}
drivers/gpu/drm/i915/gt/intel_sseu.h
View file @ 9b413f01
......@@ -13,6 +13,8 @@
#include "i915_gem.h"
struct drm_i915_private;
struct intel_gt;
struct drm_printer;
#define GEN_MAX_SLICES (6) /* CNL upper bound */
#define GEN_MAX_SUBSLICES (8) /* ICL upper bound */
......@@ -94,7 +96,13 @@ 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);
void intel_sseu_info_init(struct intel_gt *gt);
u32 intel_sseu_make_rpcs(struct drm_i915_private *i915,
const struct intel_sseu *req_sseu);
void intel_sseu_dump(const struct sseu_dev_info *sseu, struct drm_printer *p);
void intel_sseu_print_topology(const struct sseu_dev_info *sseu,
struct drm_printer *p);
#endif /* __INTEL_SSEU_H__ */
drivers/gpu/drm/i915/i915_debugfs.c
View file @ 9b413f01
......@@ -1327,7 +1327,7 @@ static int i915_rcs_topology(struct seq_file *m, void *unused)
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct drm_printer p = drm_seq_file_printer(m);
intel_device_info_print_topology(&RUNTIME_INFO(dev_priv)->sseu, &p);
intel_sseu_print_topology(&RUNTIME_INFO(dev_priv)->sseu, &p);
return 0;
}
......
drivers/gpu/drm/i915/i915_gpu_error.c
View file @ 9b413f01
......@@ -626,7 +626,7 @@ static void err_print_capabilities(struct drm_i915_error_state_buf *m,
intel_device_info_print_static(&error->device_info, &p);
intel_device_info_print_runtime(&error->runtime_info, &p);
intel_device_info_print_topology(&error->runtime_info.sseu, &p);
intel_sseu_print_topology(&error->runtime_info.sseu, &p);
intel_gt_info_print(&error->gt->info, &p);
intel_driver_caps_print(&error->driver_caps, &p);
}
......
drivers/gpu/drm/i915/intel_device_info.c
View file @ 9b413f01
......@@ -29,6 +29,7 @@
#include "display/intel_de.h"
#include "intel_device_info.h"
#include "i915_drv.h"
#include "gt/intel_sseu.h"
#define PLATFORM_NAME(x) [INTEL_##x] = #x
static const char * const platform_names[] = {
......@@ -111,581 +112,16 @@ void intel_device_info_print_static(const struct intel_device_info *info,
#undef PRINT_FLAG
}
static void sseu_dump(const struct sseu_dev_info *sseu, struct drm_printer *p)
{
int s;
drm_printf(p, "slice total: %u, mask=%04x\n",
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=%08x\n",
s, intel_sseu_subslices_per_slice(sseu, 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);
drm_printf(p, "has slice power gating: %s\n",
yesno(sseu->has_slice_pg));
drm_printf(p, "has subslice power gating: %s\n",
yesno(sseu->has_subslice_pg));
drm_printf(p, "has EU power gating: %s\n", yesno(sseu->has_eu_pg));
}
void intel_device_info_print_runtime(const struct intel_runtime_info *info,
struct drm_printer *p)
{
sseu_dump(&info->sseu, p);
intel_sseu_dump(&info->sseu, p);
drm_printf(p, "rawclk rate: %u kHz\n", info->rawclk_freq);
drm_printf(p, "CS timestamp frequency: %u Hz\n",
info->cs_timestamp_frequency_hz);
}
static int sseu_eu_idx(const struct sseu_dev_info *sseu, int slice,
int subslice)
{
int slice_stride = sseu->max_subslices * sseu->eu_stride;
return slice * slice_stride + subslice * sseu->eu_stride;
}
static u16 sseu_get_eus(const struct sseu_dev_info *sseu, int slice,
int subslice)
{
int i, offset = sseu_eu_idx(sseu, slice, subslice);
u16 eu_mask = 0;
for (i = 0; i < sseu->eu_stride; i++) {
eu_mask |= ((u16)sseu->eu_mask[offset + i]) <<
(i * BITS_PER_BYTE);
}
return eu_mask;
}
static void sseu_set_eus(struct sseu_dev_info *sseu, int slice, int subslice,
u16 eu_mask)
{
int i, offset = sseu_eu_idx(sseu, slice, subslice);
for (i = 0; i < sseu->eu_stride; i++) {
sseu->eu_mask[offset + i] =
(eu_mask >> (BITS_PER_BYTE * i)) & 0xff;
}
}
void intel_device_info_print_topology(const struct sseu_dev_info *sseu,
struct drm_printer *p)
{
int s, ss;
if (sseu->max_slices == 0) {
drm_printf(p, "Unavailable\n");
return;
}
for (s = 0; s < sseu->max_slices; s++) {
drm_printf(p, "slice%d: %u subslice(s) (0x%08x):\n",
s, intel_sseu_subslices_per_slice(sseu, s),
intel_sseu_get_subslices(sseu, s));
for (ss = 0; ss < sseu->max_subslices; ss++) {
u16 enabled_eus = sseu_get_eus(sseu, s, ss);
drm_printf(p, "\tsubslice%d: %u EUs (0x%hx)\n",
ss, hweight16(enabled_eus), enabled_eus);
}
}
}
static u16 compute_eu_total(const struct sseu_dev_info *sseu)
{
u16 i, total = 0;
for (i = 0; i < ARRAY_SIZE(sseu->eu_mask); i++)
total += hweight8(sseu->eu_mask[i]);
return total;
}
static void gen11_compute_sseu_info(struct sseu_dev_info *sseu,
u8 s_en, u32 ss_en, u16 eu_en)
{
int s, ss;
/* ss_en represents entire subslice mask across all slices */
GEM_BUG_ON(sseu->max_slices * sseu->max_subslices >
sizeof(ss_en) * BITS_PER_BYTE);
for (s = 0; s < sseu->max_slices; s++) {
if ((s_en & BIT(s)) == 0)
continue;
sseu->slice_mask |= BIT(s);
intel_sseu_set_subslices(sseu, s, ss_en);
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 = hweight16(eu_en);
sseu->eu_total = compute_eu_total(sseu);
}
static void gen12_sseu_info_init(struct drm_i915_private *dev_priv)
{
struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu;
struct intel_uncore *uncore = &dev_priv->uncore;
u8 s_en;
u32 dss_en;
u16 eu_en = 0;
u8 eu_en_fuse;
int eu;
/*
* Gen12 has Dual-Subslices, which behave similarly to 2 gen11 SS.
* Instead of splitting these, provide userspace with an array
* of DSS to more closely represent the hardware resource.
*/
intel_sseu_set_info(sseu, 1, 6, 16);
s_en = intel_uncore_read(uncore, GEN11_GT_SLICE_ENABLE) &
GEN11_GT_S_ENA_MASK;
dss_en = intel_uncore_read(uncore, GEN12_GT_DSS_ENABLE);
/* one bit per pair of EUs */
eu_en_fuse = ~(intel_uncore_read(uncore, GEN11_EU_DISABLE) &
GEN11_EU_DIS_MASK);
for (eu = 0; eu < sseu->max_eus_per_subslice / 2; eu++)
if (eu_en_fuse & BIT(eu))
eu_en |= BIT(eu * 2) | BIT(eu * 2 + 1);
gen11_compute_sseu_info(sseu, s_en, dss_en, eu_en);
/* TGL only supports slice-level power gating */
sseu->has_slice_pg = 1;
}
static void gen11_sseu_info_init(struct drm_i915_private *dev_priv)
{
struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu;
struct intel_uncore *uncore = &dev_priv->uncore;
u8 s_en;
u32 ss_en;
u8 eu_en;
if (IS_ELKHARTLAKE(dev_priv))
intel_sseu_set_info(sseu, 1, 4, 8);
else
intel_sseu_set_info(sseu, 1, 8, 8);
s_en = intel_uncore_read(uncore, GEN11_GT_SLICE_ENABLE) &
GEN11_GT_S_ENA_MASK;
ss_en = ~intel_uncore_read(uncore, GEN11_GT_SUBSLICE_DISABLE);
eu_en = ~(intel_uncore_read(uncore, GEN11_EU_DISABLE) &
GEN11_EU_DIS_MASK);
gen11_compute_sseu_info(sseu, s_en, ss_en, eu_en);
/* ICL has no power gating restrictions. */
sseu->has_slice_pg = 1;
sseu->has_subslice_pg = 1;
sseu->has_eu_pg = 1;
}
static void gen10_sseu_info_init(struct drm_i915_private *dev_priv)
{
struct intel_uncore *uncore = &dev_priv->uncore;
struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu;
const u32 fuse2 = intel_uncore_read(uncore, GEN8_FUSE2);
int s, ss;
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;
/* Slice0 */
eu_en = ~intel_uncore_read(uncore, GEN8_EU_DISABLE0);
for (ss = 0; ss < sseu->max_subslices; ss++)
sseu_set_eus(sseu, 0, ss, (eu_en >> (8 * ss)) & eu_mask);
/* Slice1 */
sseu_set_eus(sseu, 1, 0, (eu_en >> 24) & eu_mask);
eu_en = ~intel_uncore_read(uncore, GEN8_EU_DISABLE1);
sseu_set_eus(sseu, 1, 1, eu_en & eu_mask);
/* Slice2 */
sseu_set_eus(sseu, 2, 0, (eu_en >> 8) & eu_mask);
sseu_set_eus(sseu, 2, 1, (eu_en >> 16) & eu_mask);
/* Slice3 */
sseu_set_eus(sseu, 3, 0, (eu_en >> 24) & eu_mask);
eu_en = ~intel_uncore_read(uncore, GEN8_EU_DISABLE2);
sseu_set_eus(sseu, 3, 1, eu_en & eu_mask);
/* Slice4 */
sseu_set_eus(sseu, 4, 0, (eu_en >> 8) & eu_mask);
sseu_set_eus(sseu, 4, 1, (eu_en >> 16) & eu_mask);
/* Slice5 */
sseu_set_eus(sseu, 5, 0, (eu_en >> 24) & eu_mask);
eu_en = ~intel_uncore_read(uncore, GEN10_EU_DISABLE3);
sseu_set_eus(sseu, 5, 1, eu_en & eu_mask);
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++) {
u32 subslice_mask_with_eus = subslice_mask;
for (ss = 0; ss < sseu->max_subslices; ss++) {
if (sseu_get_eus(sseu, s, ss) == 0)
subslice_mask_with_eus &= ~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_with_eus :
subslice_mask_with_eus & 0x3);
}
sseu->eu_total = compute_eu_total(sseu);
/*
* CNL is expected to always have a uniform distribution
* of EU across subslices with the exception that any one
* EU in any one subslice may be fused off for die
* recovery.
*/
sseu->eu_per_subslice = intel_sseu_subslice_total(sseu) ?
DIV_ROUND_UP(sseu->eu_total,
intel_sseu_subslice_total(sseu)) :
0;
/* No restrictions on Power Gating */
sseu->has_slice_pg = 1;
sseu->has_subslice_pg = 1;
sseu->has_eu_pg = 1;
}
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 = 0;
fuse = intel_uncore_read(&dev_priv->uncore, CHV_FUSE_GT);
sseu->slice_mask = BIT(0);
intel_sseu_set_info(sseu, 1, 2, 8);
if (!(fuse & CHV_FGT_DISABLE_SS0)) {
u8 disabled_mask =
((fuse & CHV_FGT_EU_DIS_SS0_R0_MASK) >>
CHV_FGT_EU_DIS_SS0_R0_SHIFT) |
(((fuse & CHV_FGT_EU_DIS_SS0_R1_MASK) >>
CHV_FGT_EU_DIS_SS0_R1_SHIFT) << 4);
subslice_mask |= BIT(0);
sseu_set_eus(sseu, 0, 0, ~disabled_mask);
}
if (!(fuse & CHV_FGT_DISABLE_SS1)) {
u8 disabled_mask =
((fuse & CHV_FGT_EU_DIS_SS1_R0_MASK) >>
CHV_FGT_EU_DIS_SS1_R0_SHIFT) |
(((fuse & CHV_FGT_EU_DIS_SS1_R1_MASK) >>
CHV_FGT_EU_DIS_SS1_R1_SHIFT) << 4);
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);
/*
* CHV expected to always have a uniform distribution of EU
* across subslices.
*/
sseu->eu_per_subslice = intel_sseu_subslice_total(sseu) ?
sseu->eu_total /
intel_sseu_subslice_total(sseu) :
0;
/*
* CHV supports subslice power gating on devices with more than
* one subslice, and supports EU power gating on devices with
* more than one EU pair per subslice.
*/
sseu->has_slice_pg = 0;
sseu->has_subslice_pg = intel_sseu_subslice_total(sseu) > 1;
sseu->has_eu_pg = (sseu->eu_per_subslice > 2);
}
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 = &RUNTIME_INFO(dev_priv)->sseu;
struct intel_uncore *uncore = &dev_priv->uncore;
int s, ss;
u32 fuse2, eu_disable, subslice_mask;
const u8 eu_mask = 0xff;
fuse2 = intel_uncore_read(uncore, 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. */
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
* to each of the enabled slices.
*/
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 < sseu->max_slices; s++) {
if (!(sseu->slice_mask & BIT(s)))
/* skip disabled slice */
continue;
intel_sseu_set_subslices(sseu, s, subslice_mask);
eu_disable = intel_uncore_read(uncore, GEN9_EU_DISABLE(s));
for (ss = 0; ss < sseu->max_subslices; ss++) {
int eu_per_ss;
u8 eu_disabled_mask;
if (!intel_sseu_has_subslice(sseu, s, ss))
/* skip disabled subslice */
continue;
eu_disabled_mask = (eu_disable >> (ss * 8)) & eu_mask;
sseu_set_eus(sseu, s, ss, ~eu_disabled_mask);
eu_per_ss = sseu->max_eus_per_subslice -
hweight8(eu_disabled_mask);
/*
* Record which subslice(s) has(have) 7 EUs. we
* can tune the hash used to spread work among
* subslices if they are unbalanced.
*/
if (eu_per_ss == 7)
sseu->subslice_7eu[s] |= BIT(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
* EU in any one subslice may be fused off for die
* recovery. BXT is expected to be perfectly uniform in EU
* distribution.
*/
sseu->eu_per_subslice = intel_sseu_subslice_total(sseu) ?
DIV_ROUND_UP(sseu->eu_total,
intel_sseu_subslice_total(sseu)) :
0;
/*
* SKL+ supports slice power gating on devices with more than
* one slice, and supports EU power gating on devices with
* more than one EU pair per subslice. BXT+ supports subslice
* power gating on devices with more than one subslice, and
* supports EU power gating on devices with more than one EU
* pair per subslice.
*/
sseu->has_slice_pg =
!IS_GEN9_LP(dev_priv) && hweight8(sseu->slice_mask) > 1;
sseu->has_subslice_pg =
IS_GEN9_LP(dev_priv) && intel_sseu_subslice_total(sseu) > 1;
sseu->has_eu_pg = sseu->eu_per_subslice > 2;
if (IS_GEN9_LP(dev_priv)) {
#define IS_SS_DISABLED(ss) (!(sseu->subslice_mask[0] & BIT(ss)))
info->has_pooled_eu = hweight8(sseu->subslice_mask[0]) == 3;
sseu->min_eu_in_pool = 0;
if (info->has_pooled_eu) {
if (IS_SS_DISABLED(2) || IS_SS_DISABLED(0))
sseu->min_eu_in_pool = 3;
else if (IS_SS_DISABLED(1))
sseu->min_eu_in_pool = 6;
else
sseu->min_eu_in_pool = 9;
}
#undef IS_SS_DISABLED
}
}
static void bdw_sseu_info_init(struct drm_i915_private *dev_priv)
{
struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu;
struct intel_uncore *uncore = &dev_priv->uncore;
int s, ss;
u32 fuse2, subslice_mask, eu_disable[3]; /* s_max */
u32 eu_disable0, eu_disable1, eu_disable2;
fuse2 = intel_uncore_read(uncore, GEN8_FUSE2);
sseu->slice_mask = (fuse2 & GEN8_F2_S_ENA_MASK) >> GEN8_F2_S_ENA_SHIFT;
intel_sseu_set_info(sseu, 3, 3, 8);
/*
* The subslice disable field is global, i.e. it applies
* to each of the enabled slices.
*/
subslice_mask = GENMASK(sseu->max_subslices - 1, 0);
subslice_mask &= ~((fuse2 & GEN8_F2_SS_DIS_MASK) >>
GEN8_F2_SS_DIS_SHIFT);
eu_disable0 = intel_uncore_read(uncore, GEN8_EU_DISABLE0);
eu_disable1 = intel_uncore_read(uncore, GEN8_EU_DISABLE1);
eu_disable2 = intel_uncore_read(uncore, GEN8_EU_DISABLE2);
eu_disable[0] = eu_disable0 & GEN8_EU_DIS0_S0_MASK;
eu_disable[1] = (eu_disable0 >> GEN8_EU_DIS0_S1_SHIFT) |
((eu_disable1 & GEN8_EU_DIS1_S1_MASK) <<
(32 - GEN8_EU_DIS0_S1_SHIFT));
eu_disable[2] = (eu_disable1 >> GEN8_EU_DIS1_S2_SHIFT) |
((eu_disable2 & GEN8_EU_DIS2_S2_MASK) <<
(32 - GEN8_EU_DIS1_S2_SHIFT));
/*
* Iterate through enabled slices and subslices to
* count the total enabled EU.
*/
for (s = 0; s < sseu->max_slices; s++) {
if (!(sseu->slice_mask & BIT(s)))
/* skip disabled slice */
continue;
intel_sseu_set_subslices(sseu, s, subslice_mask);
for (ss = 0; ss < sseu->max_subslices; ss++) {
u8 eu_disabled_mask;
u32 n_disabled;
if (!intel_sseu_has_subslice(sseu, s, ss))
/* skip disabled subslice */
continue;
eu_disabled_mask =
eu_disable[s] >> (ss * sseu->max_eus_per_subslice);
sseu_set_eus(sseu, s, ss, ~eu_disabled_mask);
n_disabled = hweight8(eu_disabled_mask);
/*
* Record which subslices have 7 EUs.
*/
if (sseu->max_eus_per_subslice - n_disabled == 7)
sseu->subslice_7eu[s] |= 1 << ss;
}
}
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
* be fused off for die recovery.
*/
sseu->eu_per_subslice = intel_sseu_subslice_total(sseu) ?
DIV_ROUND_UP(sseu->eu_total,
intel_sseu_subslice_total(sseu)) :
0;
/*
* BDW supports slice power gating on devices with more than
* one slice.
*/
sseu->has_slice_pg = hweight8(sseu->slice_mask) > 1;
sseu->has_subslice_pg = 0;
sseu->has_eu_pg = 0;
}
static void hsw_sseu_info_init(struct drm_i915_private *dev_priv)
{
struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu;
u32 fuse1;
u8 subslice_mask = 0;
int s, ss;
/*
* There isn't a register to tell us how many slices/subslices. We
* work off the PCI-ids here.
*/
switch (INTEL_INFO(dev_priv)->gt) {
default:
MISSING_CASE(INTEL_INFO(dev_priv)->gt);
/* fall through */
case 1:
sseu->slice_mask = BIT(0);
subslice_mask = BIT(0);
break;
case 2:
sseu->slice_mask = BIT(0);
subslice_mask = BIT(0) | BIT(1);
break;
case 3:
sseu->slice_mask = BIT(0) | BIT(1);
subslice_mask = BIT(0) | BIT(1);
break;
}
fuse1 = intel_uncore_read(&dev_priv->uncore, HSW_PAVP_FUSE1);
switch ((fuse1 & HSW_F1_EU_DIS_MASK) >> HSW_F1_EU_DIS_SHIFT) {
default:
MISSING_CASE((fuse1 & HSW_F1_EU_DIS_MASK) >>
HSW_F1_EU_DIS_SHIFT);
/* fall through */
case HSW_F1_EU_DIS_10EUS:
sseu->eu_per_subslice = 10;
break;
case HSW_F1_EU_DIS_8EUS:
sseu->eu_per_subslice = 8;
break;
case HSW_F1_EU_DIS_6EUS:
sseu->eu_per_subslice = 6;
break;
}
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);
}
}
sseu->eu_total = compute_eu_total(sseu);
/* No powergating for you. */
sseu->has_slice_pg = 0;
sseu->has_subslice_pg = 0;
sseu->has_eu_pg = 0;
}
static u32 read_reference_ts_freq(struct drm_i915_private *dev_priv)
{
u32 ts_override = intel_uncore_read(&dev_priv->uncore,
......@@ -1042,22 +478,6 @@ void intel_device_info_runtime_init(struct drm_i915_private *dev_priv)
info->display.has_dsc = 0;
}
/* Initialize slice/subslice/EU info */
if (IS_HASWELL(dev_priv))
hsw_sseu_info_init(dev_priv);
else if (IS_CHERRYVIEW(dev_priv))
cherryview_sseu_info_init(dev_priv);
else if (IS_BROADWELL(dev_priv))
bdw_sseu_info_init(dev_priv);
else if (IS_GEN(dev_priv, 9))
gen9_sseu_info_init(dev_priv);
else if (IS_GEN(dev_priv, 10))
gen10_sseu_info_init(dev_priv);
else if (IS_GEN(dev_priv, 11))
gen11_sseu_info_init(dev_priv);
else if (INTEL_GEN(dev_priv) >= 12)
gen12_sseu_info_init(dev_priv);
if (IS_GEN(dev_priv, 6) && intel_vtd_active()) {
drm_info(&dev_priv->drm,
"Disabling ppGTT for VT-d support\n");
......
drivers/gpu/drm/i915/intel_device_info.h
View file @ 9b413f01
......@@ -242,8 +242,6 @@ void intel_device_info_print_static(const struct intel_device_info *info,
struct drm_printer *p);
void intel_device_info_print_runtime(const struct intel_runtime_info *info,
struct drm_printer *p);
void intel_device_info_print_topology(const struct sseu_dev_info *sseu,
struct drm_printer *p);
void intel_driver_caps_print(const struct intel_driver_caps *caps,
struct drm_printer *p);
......
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