From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Daney Date: Tue, 24 May 2016 22:35:45 +0000 Subject: [PATCH v7 15/15] acpi, numa: Enable ACPI based NUMA on ARM64 Message-Id: <1464129345-18985-16-git-send-email-ddaney.cavm@gmail.com> List-Id: References: <1464129345-18985-1-git-send-email-ddaney.cavm@gmail.com> In-Reply-To: <1464129345-18985-1-git-send-email-ddaney.cavm@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Will Deacon , linux-arm-kernel@lists.infradead.org, Mark Rutland , Catalin Marinas , Tony Luck , Fenghua Yu , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , x86@kernel.org, "Rafael J. Wysocki" , Len Brown , Rob Herring , Frank Rowand , Grant Likely , Robert Moore , Lv Zheng , Hanjun Guo , Marc Zyngier , linux-ia64@vger.kernel.org, linux-acpi@vger.kernel.org, devel@acpica.org Cc: linux-kernel@vger.kernel.org, Robert Richter , David Daney From: Hanjun Guo Add function needed for cpu to node mapping, and enable ACPI based NUMA for ARM64 in Kconfig Signed-off-by: Hanjun Guo Signed-off-by: Robert Richter [david.daney@cavium.com added ACPI_NUMA default to y for ARM64] Signed-off-by: David Daney Acked-by: Catalin Marinas --- drivers/acpi/Kconfig | 4 ++-- drivers/acpi/numa.c | 37 ++++++++++++++++++++++++++++++++++++- include/linux/acpi.h | 17 ++++++++++++++++- 3 files changed, 54 insertions(+), 4 deletions(-) diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index b7e2e77..dd76b36 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -291,8 +291,8 @@ config ACPI_THERMAL config ACPI_NUMA bool "NUMA support" depends on NUMA - depends on (X86 || IA64) - default y if IA64_GENERIC || IA64_SGI_SN2 + depends on (X86 || IA64 || ARM64) + default y if IA64_GENERIC || IA64_SGI_SN2 || ARM64 config ACPI_CUSTOM_DSDT_FILE string "Custom DSDT Table file to include" diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c index fad6d28..9b7ce40 100644 --- a/drivers/acpi/numa.c +++ b/drivers/acpi/numa.c @@ -170,6 +170,18 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header) } break; + case ACPI_SRAT_TYPE_GICC_AFFINITY: + { + struct acpi_srat_gicc_affinity *p + (struct acpi_srat_gicc_affinity *)header; + pr_debug("SRAT Processor (acpi id[0x%04x]) in proximity domain %d %s\n", + p->acpi_processor_uid, + p->proximity_domain, + (p->flags & ACPI_SRAT_GICC_ENABLED) ? + "enabled" : "disabled"); + } + break; + default: pr_warn("Found unsupported SRAT entry (type = 0x%x)\n", header->type); @@ -360,6 +372,24 @@ acpi_parse_processor_affinity(struct acpi_subtable_header *header, return 0; } +static int __init +acpi_parse_gicc_affinity(struct acpi_subtable_header *header, + const unsigned long end) +{ + struct acpi_srat_gicc_affinity *processor_affinity; + + processor_affinity = (struct acpi_srat_gicc_affinity *)header; + if (!processor_affinity) + return -EINVAL; + + acpi_table_print_srat_entry(header); + + /* let architecture-dependent part to do it */ + acpi_numa_gicc_affinity_init(processor_affinity); + + return 0; +} + static int __initdata parsed_numa_memblks; static int __init @@ -404,6 +434,9 @@ int __init acpi_numa_init(void) { int cnt = 0; + if (acpi_disabled) + return -EINVAL; + /* * Should not limit number with cpu num that is from NR_CPUS or nr_cpus * SRAT cpu entries could have different order with that in MADT. @@ -412,13 +445,15 @@ int __init acpi_numa_init(void) /* SRAT: Static Resource Affinity Table */ if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) { - struct acpi_subtable_proc srat_proc[2]; + struct acpi_subtable_proc srat_proc[3]; memset(srat_proc, 0, sizeof(srat_proc)); srat_proc[0].id = ACPI_SRAT_TYPE_CPU_AFFINITY; srat_proc[0].handler = acpi_parse_processor_affinity; srat_proc[1].id = ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY; srat_proc[1].handler = acpi_parse_x2apic_affinity; + srat_proc[1].id = ACPI_SRAT_TYPE_GICC_AFFINITY; + srat_proc[1].handler = acpi_parse_gicc_affinity; acpi_table_parse_entries_array(ACPI_SIG_SRAT, sizeof(struct acpi_table_srat), diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 8010b26..9515db6 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -232,10 +232,25 @@ int acpi_table_parse_madt(enum acpi_madt_type id, int acpi_parse_mcfg (struct acpi_table_header *header); void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); -/* the following four functions are architecture-dependent */ +/* the following numa functions are architecture-dependent */ void acpi_numa_slit_init (struct acpi_table_slit *slit); + +#if defined(CONFIG_X86) || defined(CONFIG_IA64) void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa); +#else +static inline void +acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { } +#endif + void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa); + +#ifdef CONFIG_ARM64 +void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa); +#else +static inline void +acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { } +#endif + int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma); #ifndef PHYS_CPUID_INVALID -- 1.7.11.7