ACPI 5.1 was released [1] and it fixed some major gaps to run ACPI on ARM, this patch just follow the ACPI 5.1 spec and prepare the code to run ACPI on ARM64. ACPI 5.1 has some major changes for the following tables and method which are essential for ARM platforms: 1) MADT table updates. New fields were introduced to cover MPIDR and virtualization in GICC, and introduce GICR and GIC MSI frame structure to cover GICv3 and GICv2m (this patch set only cover GICv2). 2) FADT updates for PSCI New fields were introduced to cover PSCI and ACPI can use psci to boot SMP and other PSCI related functions. 3) GTDT GTDT was updated to support arch timer, memory-mapped tiemr, SBSA watchdog timer, in this patch, only arch timer tested on Juno board, so only arch timer init is available. 4) _DSD _DSD (Device Specific Data) will provide some key values which presented by FDT before, it makes possible that some devices can be emumerated in ACPI way, please refer to the document provided in this patch set for detail. This patch set is the ARM64 ACPI core patches covered MADT, FADT and GTDT, _DSD is not covered in this patch set. We first introduce acpi.c and its related head file which are needed by ACPI core, and then get RSDP to extract all the ACPI boot-time tables. When all the boot-time tables (FADT, MADT, GTDT) are ready, then parse them to init the sytem when booted. Specifically, a) we use FADT to init PSCI and use PSCI to boot SMP; b) Use MADT for GIC init and SMP init; c) GTDT for arch timer init. This patch set is based on the former ACPICA patches I sent, and I already compiled it OK with: a) each patch applied on ARM64 with CONFIG_ACPI=y; b) CONFIG_ACPI=n on ARM64; c) CONFIG_ACPI=y on x86. Also this patch set was tested by Graeme on ARM64 Juno platform, it boot successfully with ACPI only (no device tree). [1] You can download ACPI 5.1 from http://www.uefi.org/specifications Al Stone (3): ARM64 / ACPI: Get RSDP and ACPI boot-time tables ARM64 / ACPI: Introduce early_param for "acpi" ARM64 / ACPI: Select ACPI_REDUCED_HARDWARE_ONLY if ACPI is enabled on ARM64 Ashwin Chaugule (1): ACPI / table: Add new function to get table entries Graeme Gregory (4): ARM64 / ACPI: Introduce lowlevel suspend function ARM64 / ACPI: If we chose to boot from acpi then disable FDT ARM64 / ACPI: Enable ARM64 in Kconfig Documentation: ACPI for ARM64 Hanjun Guo (10): ARM64 / ACPI: Introduce arch_fix_phys_package_id() for cpu topology ARM64 / ACPI: Make PCI optional for ACPI on ARM64 ARM64 / ACPI: Parse FADT table to get PSCI flags for PSCI init ARM64 / ACPI: Parse MADT to map logical cpu to MPIDR and get cpu_possible/present_map ACPI / table: Print GIC information when MADT is parsed ARM64 / ACPI: Move the initialization of cpu_logical_map(0) before acpi_boot_init() ARM64 / ACPI: Get the enable method for SMP initialization in ACPI way ACPI / processor: Make it possible to get CPU hardware ID via GICC ARM64 / ACPI: Introduce ACPI_IRQ_MODEL_GIC and register device's gsi ARM64 / ACPI: Parse GTDT to initialize arch timer Tomasz Nowicki (1): ARM64 / ACPI: Add GICv2 specific ACPI boot support Documentation/arm64/arm-acpi.txt | 240 ++++++++++++++++++++ Documentation/kernel-parameters.txt | 3 +- arch/arm64/Kconfig | 3 + arch/arm64/include/asm/acenv.h | 18 ++ arch/arm64/include/asm/acpi.h | 90 ++++++++ arch/arm64/include/asm/cpu.h | 11 + arch/arm64/include/asm/cpu_ops.h | 9 +- arch/arm64/include/asm/pci.h | 11 + arch/arm64/include/asm/smp.h | 2 +- arch/arm64/include/asm/topology.h | 2 + arch/arm64/kernel/Makefile | 1 + arch/arm64/kernel/acpi.c | 403 ++++++++++++++++++++++++++++++++++ arch/arm64/kernel/cpu_ops.c | 52 ++++- arch/arm64/kernel/irq.c | 5 + arch/arm64/kernel/psci.c | 95 +++++--- arch/arm64/kernel/setup.c | 11 +- arch/arm64/kernel/smp.c | 39 +++- arch/arm64/kernel/time.c | 7 + arch/arm64/kernel/topology.c | 14 ++ drivers/acpi/Kconfig | 6 +- drivers/acpi/Makefile | 2 +- drivers/acpi/bus.c | 3 + drivers/acpi/internal.h | 5 + drivers/acpi/processor_core.c | 36 +++ drivers/acpi/tables.c | 109 +++++++-- drivers/clocksource/arm_arch_timer.c | 117 ++++++++-- drivers/irqchip/irq-gic.c | 114 ++++++++++ include/linux/acpi.h | 5 + include/linux/clocksource.h | 6 + include/linux/irqchip/arm-gic-acpi.h | 36 +++ include/linux/pci.h | 37 +++- 31 files changed, 1397 insertions(+), 95 deletions(-) create mode 100644 Documentation/arm64/arm-acpi.txt create mode 100644 arch/arm64/include/asm/acenv.h create mode 100644 arch/arm64/include/asm/acpi.h create mode 100644 arch/arm64/include/asm/cpu.h create mode 100644 arch/arm64/include/asm/pci.h create mode 100644 arch/arm64/kernel/acpi.c create mode 100644 include/linux/irqchip/arm-gic-acpi.h -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
