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Message-ID: <20230807150405.686834933@infradead.org>
Date:   Mon, 07 Aug 2023 14:38:07 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     x86@...nel.org
Cc:     peterz@...radead.org, mingo@...hat.com, acme@...nel.org,
        mark.rutland@....com, alexander.shishkin@...ux.intel.com,
        jolsa@...nel.org, namhyung@...nel.org, irogers@...gle.com,
        adrian.hunter@...el.com, tglx@...utronix.de, bp@...en8.de,
        dave.hansen@...ux.intel.com, hpa@...or.com,
        Tony Luck <tony.luck@...el.com>, luto@...nel.org,
        james.morse@....com, mchehab@...nel.org, rric@...nel.org,
        jacob.jun.pan@...ux.intel.com, lenb@...nel.org,
        irenic.rajneesh@...il.com, david.e.box@...el.com,
        hdegoede@...hat.com, markgross@...nel.org,
        srinivas.pandruvada@...ux.intel.com, rafael@...nel.org,
        daniel.lezcano@...aro.org, amitk@...nel.org, rui.zhang@...el.com,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-edac@...r.kernel.org, linux-pm@...r.kernel.org,
        platform-driver-x86@...r.kernel.org
Subject: [PATCH 1/3] x86/cpu: Fix Gracemont uarch

Alderlake N is an E-core only product using Gracemont
micro-architecture. It fits the pre-existing naming scheme perfectly
fine, adhere to it.

Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
---
 arch/x86/events/intel/core.c              |    2 +-
 arch/x86/events/intel/cstate.c            |    2 +-
 arch/x86/events/intel/uncore.c            |    2 +-
 arch/x86/events/msr.c                     |    2 +-
 arch/x86/events/rapl.c                    |    2 +-
 arch/x86/include/asm/intel-family.h       |    3 ++-
 arch/x86/kernel/cpu/intel_epb.c           |    2 +-
 arch/x86/mm/init.c                        |    2 +-
 drivers/idle/intel_idle.c                 |   10 +++++-----
 drivers/platform/x86/intel/pmc/core.c     |    2 +-
 drivers/powercap/intel_rapl_common.c      |    2 +-
 drivers/powercap/intel_rapl_msr.c         |    2 +-
 drivers/thermal/intel/intel_tcc_cooling.c |    2 +-
 tools/power/x86/turbostat/turbostat.c     |    2 +-
 14 files changed, 19 insertions(+), 18 deletions(-)

--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -6167,7 +6167,7 @@ __init int intel_pmu_init(void)
 		name = "Tremont";
 		break;
 
-	case INTEL_FAM6_ALDERLAKE_N:
+	case INTEL_FAM6_ATOM_GRACEMONT:
 		x86_pmu.mid_ack = true;
 		memcpy(hw_cache_event_ids, glp_hw_cache_event_ids,
 		       sizeof(hw_cache_event_ids));
--- a/arch/x86/events/intel/cstate.c
+++ b/arch/x86/events/intel/cstate.c
@@ -669,6 +669,7 @@ static const struct x86_cpu_id intel_cst
 	X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT_D,	&glm_cstates),
 	X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT,	&glm_cstates),
 	X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT_L,	&glm_cstates),
+	X86_MATCH_INTEL_FAM6_MODEL(ATOM_GRACEMONT,	&adl_cstates),
 
 	X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_L,		&icl_cstates),
 	X86_MATCH_INTEL_FAM6_MODEL(ICELAKE,		&icl_cstates),
@@ -684,7 +685,6 @@ static const struct x86_cpu_id intel_cst
 	X86_MATCH_INTEL_FAM6_MODEL(ROCKETLAKE,		&icl_cstates),
 	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE,		&adl_cstates),
 	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_L,		&adl_cstates),
-	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_N,		&adl_cstates),
 	X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE,		&adl_cstates),
 	X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE_P,	&adl_cstates),
 	X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE_S,	&adl_cstates),
--- a/arch/x86/events/intel/uncore.c
+++ b/arch/x86/events/intel/uncore.c
@@ -1858,7 +1858,6 @@ static const struct x86_cpu_id intel_unc
 	X86_MATCH_INTEL_FAM6_MODEL(ROCKETLAKE,		&rkl_uncore_init),
 	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE,		&adl_uncore_init),
 	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_L,		&adl_uncore_init),
-	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_N,		&adl_uncore_init),
 	X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE,		&adl_uncore_init),
 	X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE_P,	&adl_uncore_init),
 	X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE_S,	&adl_uncore_init),
@@ -1867,6 +1866,7 @@ static const struct x86_cpu_id intel_unc
 	X86_MATCH_INTEL_FAM6_MODEL(SAPPHIRERAPIDS_X,	&spr_uncore_init),
 	X86_MATCH_INTEL_FAM6_MODEL(EMERALDRAPIDS_X,	&spr_uncore_init),
 	X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT_D,	&snr_uncore_init),
+	X86_MATCH_INTEL_FAM6_MODEL(ATOM_GRACEMONT,	&adl_uncore_init),
 	{},
 };
 MODULE_DEVICE_TABLE(x86cpu, intel_uncore_match);
--- a/arch/x86/events/msr.c
+++ b/arch/x86/events/msr.c
@@ -106,7 +106,7 @@ static bool test_intel(int idx, void *da
 	case INTEL_FAM6_ROCKETLAKE:
 	case INTEL_FAM6_ALDERLAKE:
 	case INTEL_FAM6_ALDERLAKE_L:
-	case INTEL_FAM6_ALDERLAKE_N:
+	case INTEL_FAM6_ATOM_GRACEMONT:
 	case INTEL_FAM6_RAPTORLAKE:
 	case INTEL_FAM6_RAPTORLAKE_P:
 	case INTEL_FAM6_RAPTORLAKE_S:
--- a/arch/x86/events/rapl.c
+++ b/arch/x86/events/rapl.c
@@ -804,7 +804,7 @@ static const struct x86_cpu_id rapl_mode
 	X86_MATCH_INTEL_FAM6_MODEL(TIGERLAKE,		&model_skl),
 	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE,		&model_skl),
 	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_L,		&model_skl),
-	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_N,		&model_skl),
+	X86_MATCH_INTEL_FAM6_MODEL(ATOM_GRACEMONT,	&model_skl),
 	X86_MATCH_INTEL_FAM6_MODEL(SAPPHIRERAPIDS_X,	&model_spr),
 	X86_MATCH_INTEL_FAM6_MODEL(EMERALDRAPIDS_X,	&model_spr),
 	X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE,		&model_skl),
--- a/arch/x86/include/asm/intel-family.h
+++ b/arch/x86/include/asm/intel-family.h
@@ -114,7 +114,6 @@
 
 #define INTEL_FAM6_ALDERLAKE		0x97	/* Golden Cove / Gracemont */
 #define INTEL_FAM6_ALDERLAKE_L		0x9A	/* Golden Cove / Gracemont */
-#define INTEL_FAM6_ALDERLAKE_N		0xBE
 
 #define INTEL_FAM6_RAPTORLAKE		0xB7
 #define INTEL_FAM6_RAPTORLAKE_P		0xBA
@@ -154,6 +153,8 @@
 #define INTEL_FAM6_ATOM_TREMONT		0x96 /* Elkhart Lake */
 #define INTEL_FAM6_ATOM_TREMONT_L	0x9C /* Jasper Lake */
 
+#define INTEL_FAM6_ATOM_GRACEMONT	0xBE /* Alderlake N */
+
 #define INTEL_FAM6_SIERRAFOREST_X	0xAF
 
 #define INTEL_FAM6_GRANDRIDGE		0xB6
--- a/arch/x86/kernel/cpu/intel_epb.c
+++ b/arch/x86/kernel/cpu/intel_epb.c
@@ -206,7 +206,7 @@ static int intel_epb_offline(unsigned in
 static const struct x86_cpu_id intel_epb_normal[] = {
 	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_L,
 				   ENERGY_PERF_BIAS_NORMAL_POWERSAVE),
-	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_N,
+	X86_MATCH_INTEL_FAM6_MODEL(ATOM_GRACEMONT,
 				   ENERGY_PERF_BIAS_NORMAL_POWERSAVE),
 	X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE_P,
 				   ENERGY_PERF_BIAS_NORMAL_POWERSAVE),
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -273,7 +273,7 @@ static void __init probe_page_size_mask(
 static const struct x86_cpu_id invlpg_miss_ids[] = {
 	INTEL_MATCH(INTEL_FAM6_ALDERLAKE   ),
 	INTEL_MATCH(INTEL_FAM6_ALDERLAKE_L ),
-	INTEL_MATCH(INTEL_FAM6_ALDERLAKE_N ),
+	INTEL_MATCH(INTEL_FAM6_ATOM_GRACEMONT ),
 	INTEL_MATCH(INTEL_FAM6_RAPTORLAKE  ),
 	INTEL_MATCH(INTEL_FAM6_RAPTORLAKE_P),
 	INTEL_MATCH(INTEL_FAM6_RAPTORLAKE_S),
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -960,7 +960,7 @@ static struct cpuidle_state adl_l_cstate
 		.enter = NULL }
 };
 
-static struct cpuidle_state adl_n_cstates[] __initdata = {
+static struct cpuidle_state gmt_cstates[] __initdata = {
 	{
 		.name = "C1",
 		.desc = "MWAIT 0x00",
@@ -1405,8 +1405,8 @@ static const struct idle_cpu idle_cpu_ad
 	.state_table = adl_l_cstates,
 };
 
-static const struct idle_cpu idle_cpu_adl_n __initconst = {
-	.state_table = adl_n_cstates,
+static const struct idle_cpu idle_cpu_gmt __initconst = {
+	.state_table = gmt_cstates,
 };
 
 static const struct idle_cpu idle_cpu_spr __initconst = {
@@ -1479,7 +1479,7 @@ static const struct x86_cpu_id intel_idl
 	X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_D,		&idle_cpu_icx),
 	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE,		&idle_cpu_adl),
 	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_L,		&idle_cpu_adl_l),
-	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_N,		&idle_cpu_adl_n),
+	X86_MATCH_INTEL_FAM6_MODEL(ATOM_GRACEMONT,	&idle_cpu_gmt),
 	X86_MATCH_INTEL_FAM6_MODEL(SAPPHIRERAPIDS_X,	&idle_cpu_spr),
 	X86_MATCH_INTEL_FAM6_MODEL(EMERALDRAPIDS_X,	&idle_cpu_spr),
 	X86_MATCH_INTEL_FAM6_MODEL(XEON_PHI_KNL,	&idle_cpu_knl),
@@ -1979,7 +1979,7 @@ static void __init intel_idle_init_cstat
 		break;
 	case INTEL_FAM6_ALDERLAKE:
 	case INTEL_FAM6_ALDERLAKE_L:
-	case INTEL_FAM6_ALDERLAKE_N:
+	case INTEL_FAM6_ATOM_GRACEMONT:
 		adl_idle_state_table_update();
 		break;
 	}
--- a/drivers/platform/x86/intel/pmc/core.c
+++ b/drivers/platform/x86/intel/pmc/core.c
@@ -1123,7 +1123,7 @@ static const struct x86_cpu_id intel_pmc
 	X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT_L,	icl_core_init),
 	X86_MATCH_INTEL_FAM6_MODEL(ROCKETLAKE,		tgl_core_init),
 	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_L,		tgl_core_init),
-	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_N,		tgl_core_init),
+	X86_MATCH_INTEL_FAM6_MODEL(ATOM_GRACEMONT,	tgl_core_init),
 	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE,		adl_core_init),
 	X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE_P,        tgl_core_init),
 	X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE,		adl_core_init),
--- a/drivers/powercap/intel_rapl_common.c
+++ b/drivers/powercap/intel_rapl_common.c
@@ -1250,7 +1250,7 @@ static const struct x86_cpu_id rapl_ids[
 	X86_MATCH_INTEL_FAM6_MODEL(ROCKETLAKE,		&rapl_defaults_core),
 	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE,		&rapl_defaults_core),
 	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_L,		&rapl_defaults_core),
-	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_N,		&rapl_defaults_core),
+	X86_MATCH_INTEL_FAM6_MODEL(ATOM_GRACEMONT,	&rapl_defaults_core),
 	X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE,		&rapl_defaults_core),
 	X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE_P,        &rapl_defaults_core),
 	X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE_S,	&rapl_defaults_core),
--- a/drivers/powercap/intel_rapl_msr.c
+++ b/drivers/powercap/intel_rapl_msr.c
@@ -141,7 +141,7 @@ static const struct x86_cpu_id pl4_suppo
 	X86_MATCH_INTEL_FAM6_MODEL(TIGERLAKE_L, NULL),
 	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE, NULL),
 	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_L, NULL),
-	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_N, NULL),
+	X86_MATCH_INTEL_FAM6_MODEL(ATOM_GRACEMONT, NULL),
 	X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE, NULL),
 	X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE_P, NULL),
 	X86_MATCH_INTEL_FAM6_MODEL(METEORLAKE, NULL),
--- a/drivers/thermal/intel/intel_tcc_cooling.c
+++ b/drivers/thermal/intel/intel_tcc_cooling.c
@@ -60,7 +60,7 @@ static const struct x86_cpu_id tcc_ids[]
 	X86_MATCH_INTEL_FAM6_MODEL(COMETLAKE, NULL),
 	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE, NULL),
 	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_L, NULL),
-	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_N, NULL),
+	X86_MATCH_INTEL_FAM6_MODEL(ATOM_GRACEMONT, NULL),
 	X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE, NULL),
 	X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE_P, NULL),
 	X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE_S, NULL),
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -5447,7 +5447,7 @@ unsigned int intel_model_duplicates(unsi
 	case INTEL_FAM6_LAKEFIELD:
 	case INTEL_FAM6_ALDERLAKE:
 	case INTEL_FAM6_ALDERLAKE_L:
-	case INTEL_FAM6_ALDERLAKE_N:
+	case INTEL_FAM6_ATOM_GRACEMONT:
 	case INTEL_FAM6_RAPTORLAKE:
 	case INTEL_FAM6_RAPTORLAKE_P:
 	case INTEL_FAM6_RAPTORLAKE_S:


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