Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932838AbcDTBlv (ORCPT ); Tue, 19 Apr 2016 21:41:51 -0400 Received: from mail-pa0-f47.google.com ([209.85.220.47]:35208 "EHLO mail-pa0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932557AbcDTBlD (ORCPT ); Tue, 19 Apr 2016 21:41:03 -0400 From: David Daney 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 Subject: [PATCH v5 13/14] acpi, numa: Enable ACPI based NUMA on ARM64 Date: Tue, 19 Apr 2016 18:40:38 -0700 Message-Id: <1461116439-22991-14-git-send-email-ddaney.cavm@gmail.com> X-Mailer: git-send-email 1.7.11.7 In-Reply-To: <1461116439-22991-1-git-send-email-ddaney.cavm@gmail.com> References: <1461116439-22991-1-git-send-email-ddaney.cavm@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4007 Lines: 127 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 Signed-off-by: David Daney --- drivers/acpi/Kconfig | 2 +- drivers/acpi/numa.c | 35 +++++++++++++++++++++++++++++++++++ include/linux/acpi.h | 17 ++++++++++++++++- 3 files changed, 52 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 82b96ee..5ce9f66 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -291,7 +291,7 @@ config ACPI_THERMAL config ACPI_NUMA bool "NUMA support" depends on NUMA - depends on (X86 || IA64) + depends on (X86 || IA64 || ARM64) default y if IA64_GENERIC || IA64_SGI_SN2 config ACPI_CUSTOM_DSDT_FILE diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c index d244018..02c6dd8 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. @@ -416,6 +449,8 @@ int __init acpi_numa_init(void) acpi_parse_x2apic_affinity, 0); acpi_table_parse_srat(ACPI_SRAT_TYPE_CPU_AFFINITY, acpi_parse_processor_affinity, 0); + acpi_table_parse_srat(ACPI_SRAT_TYPE_GICC_AFFINITY, + acpi_parse_gicc_affinity, 0); cnt = acpi_table_parse_srat(ACPI_SRAT_TYPE_MEMORY_AFFINITY, acpi_parse_memory_affinity, NR_NODE_MEMBLKS); diff --git a/include/linux/acpi.h b/include/linux/acpi.h index ab6fd96..af34064 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -239,10 +239,25 @@ 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