From patchwork series 394243

https://patchwork.ozlabs.org//project/linuxppc-dev/list/?series=394243

Author: Fox Snowpatch

arch/powerpc/include/asm/cputable.h

@@ -454,6 +454,9 @@ static inline void cpu_feature_keys_init(void) { }
 	    CPU_FTR_ARCH_300 | CPU_FTR_ARCH_31 | \
 	    CPU_FTR_DAWR | CPU_FTR_DAWR1 | \
 	    CPU_FTR_DEXCR_NPHIE)
+
+#define CPU_FTRS_POWER11	CPU_FTRS_POWER10
+
 #define CPU_FTRS_CELL	(CPU_FTR_LWSYNC | \
 	    CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
 	    CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT | \

arch/powerpc/include/asm/mmu.h

@@ -133,6 +133,7 @@
 #define MMU_FTRS_POWER8		MMU_FTRS_POWER6
 #define MMU_FTRS_POWER9		MMU_FTRS_POWER6
 #define MMU_FTRS_POWER10	MMU_FTRS_POWER6
+#define MMU_FTRS_POWER11	MMU_FTRS_POWER6
 #define MMU_FTRS_CELL		MMU_FTRS_DEFAULT_HPTE_ARCH_V2 | \
 				MMU_FTR_CI_LARGE_PAGE
 #define MMU_FTRS_PA6T		MMU_FTRS_DEFAULT_HPTE_ARCH_V2 | \

arch/powerpc/include/asm/reg.h

@@ -1364,6 +1364,7 @@
 #define PVR_HX_C2000	0x0066
 #define PVR_POWER9	0x004E
 #define PVR_POWER10	0x0080
+#define PVR_POWER11	0x0082
 #define PVR_BE		0x0070
 #define PVR_PA6T	0x0090
 
@@ -1375,6 +1376,7 @@
 #define PVR_ARCH_207	0x0f000004
 #define PVR_ARCH_300	0x0f000005
 #define PVR_ARCH_31	0x0f000006
+#define PVR_ARCH_31N	0x0f000007
 
 /* Macros for setting and retrieving special purpose registers */
 #ifndef __ASSEMBLY__

arch/powerpc/kernel/cpu_specs_book3s_64.h

@@ -60,6 +60,9 @@
 				 PPC_FEATURE2_ISEL | PPC_FEATURE2_TAR | \
 				 PPC_FEATURE2_VEC_CRYPTO)
 
+#define COMMON_USER_POWER11	COMMON_USER_POWER10
+#define COMMON_USER2_POWER11	COMMON_USER2_POWER10
+
 static struct cpu_spec cpu_specs[] __initdata = {
 	{	/* PPC970 */
 		.pvr_mask		= 0xffff0000,
@@ -281,6 +284,20 @@ static struct cpu_spec cpu_specs[] __initdata = {
 		.cpu_restore		= __restore_cpu_power10,
 		.platform		= "power10",
 	},
+	{	/* 3.1-compliant processor, i.e. Power11 "architected" mode */
+		.pvr_mask		= 0xffffffff,
+		.pvr_value		= 0x0f000007,
+		.cpu_name		= "Power11 (architected)",
+		.cpu_features		= CPU_FTRS_POWER11,
+		.cpu_user_features	= COMMON_USER_POWER11,
+		.cpu_user_features2	= COMMON_USER2_POWER11,
+		.mmu_features		= MMU_FTRS_POWER11,
+		.icache_bsize		= 128,
+		.dcache_bsize		= 128,
+		.cpu_setup		= __setup_cpu_power10,
+		.cpu_restore		= __restore_cpu_power10,
+		.platform		= "power11",
+	},
 	{	/* Power7 */
 		.pvr_mask		= 0xffff0000,
 		.pvr_value		= 0x003f0000,
@@ -451,6 +468,23 @@ static struct cpu_spec cpu_specs[] __initdata = {
 		.machine_check_early	= __machine_check_early_realmode_p10,
 		.platform		= "power10",
 	},
+	{	/* Power11 */
+		.pvr_mask		= 0xffff0000,
+		.pvr_value		= 0x00820000,
+		.cpu_name		= "Power11 (raw)",
+		.cpu_features		= CPU_FTRS_POWER11,
+		.cpu_user_features	= COMMON_USER_POWER11,
+		.cpu_user_features2	= COMMON_USER2_POWER11,
+		.mmu_features		= MMU_FTRS_POWER11,
+		.icache_bsize		= 128,
+		.dcache_bsize		= 128,
+		.num_pmcs		= 6,
+		.pmc_type		= PPC_PMC_IBM,
+		.cpu_setup		= __setup_cpu_power10,
+		.cpu_restore		= __restore_cpu_power10,
+		.machine_check_early	= __machine_check_early_realmode_p10,
+		.platform		= "power11",
+	},
 	{	/* Cell Broadband Engine */
 		.pvr_mask		= 0xffff0000,
 		.pvr_value		= 0x00700000,

arch/powerpc/kernel/dt_cpu_ftrs.c

@@ -458,6 +458,14 @@ static int __init feat_enable_mce_power10(struct dt_cpu_feature *f)
 	return 1;
 }
 
+static int __init feat_enable_mce_power11(struct dt_cpu_feature *f)
+{
+	cur_cpu_spec->platform = "power11";
+	cur_cpu_spec->machine_check_early = __machine_check_early_realmode_p10;
+
+	return 1;
+}
+
 static int __init feat_enable_tm(struct dt_cpu_feature *f)
 {
 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
@@ -648,8 +656,10 @@ static struct dt_cpu_feature_match __initdata
 	{"pc-relative-addressing", feat_enable, 0},
 	{"machine-check-power9", feat_enable_mce_power9, 0},
 	{"machine-check-power10", feat_enable_mce_power10, 0},
+	{"machine-check-power11", feat_enable_mce_power11, 0},
 	{"performance-monitor-power9", feat_enable_pmu_power9, 0},
 	{"performance-monitor-power10", feat_enable_pmu_power10, 0},
+	{"performance-monitor-power11", feat_enable_pmu_power10, 0},
 	{"event-based-branch-v3", feat_enable, 0},
 	{"random-number-generator", feat_enable, 0},
 	{"system-call-vectored", feat_disable, 0},

arch/powerpc/kernel/prom_init.c

@@ -947,7 +947,7 @@ struct option_vector7 {
 } __packed;
 
 struct ibm_arch_vec {
-	struct { __be32 mask, val; } pvrs[14];
+	struct { __be32 mask, val; } pvrs[16];
 
 	u8 num_vectors;
 
@@ -1007,6 +1007,14 @@ static const struct ibm_arch_vec ibm_architecture_vec_template __initconst = {
 			.mask = cpu_to_be32(0xffff0000), /* POWER10 */
 			.val  = cpu_to_be32(0x00800000),
 		},
+		{
+			.mask = cpu_to_be32(0xffff0000), /* POWER11 */
+			.val  = cpu_to_be32(0x00820000),
+		},
+		{
+			.mask = cpu_to_be32(0xffffffff), /* all 3.1-compliant */
+			.val  = cpu_to_be32(0x0f000007),
+		},
 		{
 			.mask = cpu_to_be32(0xffffffff), /* all 3.1-compliant */
 			.val  = cpu_to_be32(0x0f000006),

arch/powerpc/kvm/book3s_hv.c

@@ -427,6 +427,7 @@ static int kvmppc_set_arch_compat(struct kvm_vcpu *vcpu, u32 arch_compat)
 			cap = H_GUEST_CAP_POWER9;
 			break;
 		case PVR_ARCH_31:
+		case PVR_ARCH_31N:
 			guest_pcr_bit = PCR_ARCH_31;
 			cap = H_GUEST_CAP_POWER10;
 			break;

arch/powerpc/perf/core-book3s.c

@@ -2593,6 +2593,8 @@ static int __init init_ppc64_pmu(void)
 		return 0;
 	else if (!init_power10_pmu())
 		return 0;
+	else if (!init_power11_pmu())
+		return 0;
 	else if (!init_ppc970_pmu())
 		return 0;
 	else

arch/powerpc/perf/internal.h

@@ -10,4 +10,5 @@ int __init init_power7_pmu(void);
 int __init init_power8_pmu(void);
 int __init init_power9_pmu(void);
 int __init init_power10_pmu(void);
+int __init init_power11_pmu(void);
 int __init init_generic_compat_pmu(void);

arch/powerpc/perf/power10-pmu.c

@@ -634,3 +634,30 @@ int __init init_power10_pmu(void)
 
 	return 0;
 }
+
+static struct power_pmu power11_pmu;
+
+int __init init_power11_pmu(void)
+{
+	unsigned int pvr;
+	int rc;
+
+	pvr = mfspr(SPRN_PVR);
+	if (PVR_VER(pvr) != PVR_POWER11)
+		return -ENODEV;
+
+	/* Set the PERF_REG_EXTENDED_MASK here */
+	PERF_REG_EXTENDED_MASK = PERF_REG_PMU_MASK_31;
+
+	power11_pmu = power10_pmu;
+	power11_pmu.name = "Power11";
+
+	rc = register_power_pmu(&power11_pmu);
+	if (rc)
+		return rc;
+
+	/* Tell userspace that EBB is supported */
+	cur_cpu_spec->cpu_user_features2 |= PPC_FEATURE2_EBB;
+
+	return 0;
+}