Linaro-acpi

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820 discussions

[PATCH 1/2] acpi: Be sure ACPI structure are packed with 1 byte alignment.

by Tomasz Nowicki

--- tools/common/include/acpi.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/tools/common/include/acpi.h b/tools/common/include/acpi.h index c06bafb..ba8004b 100644 --- a/tools/common/include/acpi.h +++ b/tools/common/include/acpi.h @@ -18,6 +18,8 @@ #define ACPI_OEM_ID_SIZE 6 #define ACPI_OEM_TABLE_ID_SIZE 8 +#pragma pack(1) + /* Generic ACPI table header */ struct acpi_table_header { @@ -295,4 +297,7 @@ struct acpi_whea_header { uint64_t mask; /* Bitmask required for this register instruction */ }; +/* Reset to default packing */ +#pragma pack() + #endif /* ACPI_H_ */ -- 1.7.9.5

10 years, 11 months

[PATCH 1/2] ARM/ARM64 : remove HPET related stuff

by Hanjun Guo

HPET is definite not for ARM/ARM64, remove its related stuff. Signed-off-by: Hanjun Guo <hanjun.guo(a)linaro.org> --- drivers/acpi/plat/arm/boot.c | 75 ------------------------------------------ 1 file changed, 75 deletions(-) diff --git a/drivers/acpi/plat/arm/boot.c b/drivers/acpi/plat/arm/boot.c index 3bfe86e..a6c5a5e 100644 --- a/drivers/acpi/plat/arm/boot.c +++ b/drivers/acpi/plat/arm/boot.c @@ -466,79 +466,6 @@ static int __init acpi_parse_sbf(struct acpi_table_header *table) return 0; } -#ifdef CONFIG_HPET_TIMER -#include <asm/hpet.h> - -static struct __initdata resource * hpet_res; - -static int __init acpi_parse_hpet(struct acpi_table_header *table) -{ - struct acpi_table_hpet *hpet_tbl; - - hpet_tbl = (struct acpi_table_hpet *)table; - if (!hpet_tbl) { - printk(KERN_WARNING PREFIX "Unable to map HPET\n"); - return -ENODEV; - } - - if (hpet_tbl->address.space_id != ACPI_SPACE_MEM) { - printk(KERN_WARNING PREFIX "HPET timers must be located in " - "memory.\n"); - return -1; - } - - hpet_address = hpet_tbl->address.address; - hpet_blockid = hpet_tbl->sequence; - - /* - * Some broken BIOSes advertise HPET at 0x0. We really do not - * want to allocate a resource there. - */ - if (!hpet_address) { - printk(KERN_WARNING PREFIX - "HPET id: %#x base: %#lx is invalid\n", - hpet_tbl->id, hpet_address); - return 0; - } - printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n", - hpet_tbl->id, hpet_address); - - /* - * Allocate and initialize the HPET firmware resource for adding into - * the resource tree during the lateinit timeframe. - */ -#define HPET_RESOURCE_NAME_SIZE 9 - hpet_res = alloc_bootmem(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE); - - hpet_res->name = (void *)&hpet_res[1]; - hpet_res->flags = IORESOURCE_MEM; - snprintf((char *)hpet_res->name, HPET_RESOURCE_NAME_SIZE, "HPET %u", - hpet_tbl->sequence); - - hpet_res->start = hpet_address; - hpet_res->end = hpet_address + (1 * 1024) - 1; - - return 0; -} - -/* - * hpet_insert_resource inserts the HPET resources used into the resource - * tree. - */ -static int __init hpet_insert_resource(void) -{ - if (!hpet_res) - return 1; - - return insert_resource(&iomem_resource, hpet_res); -} - -late_initcall(hpet_insert_resource); - -#else -#define acpi_parse_hpet NULL -#endif - /* Local APIC = GIC cpu interface on ARM */ static int __init acpi_parse_madt_lapic_entries(void) { @@ -741,8 +668,6 @@ int __init acpi_boot_init(void) */ acpi_process_madt(); - acpi_table_parse(ACPI_SIG_HPET, acpi_parse_hpet); - return 0; } -- 1.7.9.5

10 years, 11 months

[RFC PATCH 0/5] Convert GIC to ACPI

by Hanjun Guo

This patch set trys to convert GIC to ACPI which based on patches from Amit, I rework two patches from him and fix two minor bugs :) In MADT table, there are GIC cpu interface base address and GIC distributor base address, use them to convert GIC to ACPI. GIC should be converted after all the devices refer to GIC are converted. So I hack some code to test this patch set. Amit Daniel Kachhap (2): irqdomain: Add a new API irq_create_acpi_mapping ACPI: ARM: Update acpi_register_gsi to register with the core IRQ subsystem Hanjun Guo (3): irqchip / GIC: do not set default host for GIC domain multi-times when ACPI enabled ARM / GIC: convert GIC to ACPI using the information in MADT ACPI / timer: hack to test GIC in ACPI mode arch/arm64/kernel/irq.c | 4 ++ drivers/acpi/plat/arm/boot.c | 100 +++++++++++++++++++++++++++++----- drivers/clocksource/arm_arch_timer.c | 11 +++- drivers/irqchip/irq-gic.c | 9 ++- include/linux/acpi.h | 3 + kernel/irq/irqdomain.c | 27 +++++++++ 6 files changed, 133 insertions(+), 21 deletions(-) -- 1.7.9.5

10 years, 11 months

ACPI standup 2013/11/19

by Tomasz Nowicki

Hi, Here is update from my side: - send out summary of APEI work and RFC regarding next steps, - once we have clear view on this, we will create cards - now implementing cfi-flash driver Regards, Tomasz

10 years, 11 months

[PATCH] Foundation model / ASL: fix another interrupt type and level flag error

by Hanjun Guo

As commit 4a52df24 (ARM64 / ASL: Fix interrupt type and level flag for device interrupts) did, this patch fix the same problem. Signed-off-by: Hanjun Guo <hanjun.guo(a)linaro.org> --- platforms/foundation-v8.acpi/dsdt.asl | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/platforms/foundation-v8.acpi/dsdt.asl b/platforms/foundation-v8.acpi/dsdt.asl index ecf25ae..0660dbf 100644 --- a/platforms/foundation-v8.acpi/dsdt.asl +++ b/platforms/foundation-v8.acpi/dsdt.asl @@ -476,7 +476,7 @@ DefinitionBlock ( Method (_CRS, 0x0, Serialized) { Name (RBUF, ResourceTemplate() { Memory32Fixed (ReadWrite, 0x1c090000, 0x1000) - Interrupt (ResourceConsumer, Edge, ActiveBoth, Exclusive, , , ) {0x25} + Interrupt (ResourceConsumer, Level, ActiveHigh, Exclusive, , , ) {0x25} }) Return (RBUF) } @@ -490,7 +490,7 @@ DefinitionBlock ( Method (_CRS, 0x0, Serialized) { Name (RBUF, ResourceTemplate() { Memory32Fixed (ReadWrite, 0x1c0a0000, 0x1000) - Interrupt (ResourceConsumer, Edge, ActiveBoth, Exclusive, , , ) {0x26} + Interrupt (ResourceConsumer, Level, ActiveHigh, Exclusive, , , ) {0x26} }) Return (RBUF) } @@ -504,7 +504,7 @@ DefinitionBlock ( Method (_CRS, 0x0, Serialized) { Name (RBUF, ResourceTemplate() { Memory32Fixed (ReadWrite, 0x1c0b0000, 0x1000) - Interrupt (ResourceConsumer, Edge, ActiveBoth, Exclusive, , , ) {0x27} + Interrupt (ResourceConsumer, Level, ActiveHigh, Exclusive, , , ) {0x27} }) Return (RBUF) } @@ -518,7 +518,7 @@ DefinitionBlock ( Method (_CRS, 0x0, Serialized) { Name (RBUF, ResourceTemplate() { Memory32Fixed (ReadWrite, 0x1c0c0000, 0x1000) - Interrupt (ResourceConsumer, Edge, ActiveBoth, Exclusive, , , ) {0x28} + Interrupt (ResourceConsumer, Level, ActiveHigh, Exclusive, , , ) {0x28} }) Return (RBUF) } -- 1.7.9.5

10 years, 11 months

[PATCH] RTSM model: Create GTDT table for arch timer

by Hanjun Guo

Create GTDT table to convert arch timer for early boot. Signed-off-by: Hanjun Guo <hanjun.guo(a)linaro.org> --- platforms/rtsm_ve-aemv8a.acpi/gtdt.asl | 37 +++++++++++++++++++++----------- 1 file changed, 24 insertions(+), 13 deletions(-) diff --git a/platforms/rtsm_ve-aemv8a.acpi/gtdt.asl b/platforms/rtsm_ve-aemv8a.acpi/gtdt.asl index 068ad4a..26eac38 100644 --- a/platforms/rtsm_ve-aemv8a.acpi/gtdt.asl +++ b/platforms/rtsm_ve-aemv8a.acpi/gtdt.asl @@ -1,6 +1,7 @@ /* * Copyright (c) 2013, Al Stone <al.stone(a)linaro.org> - * + * Hanjun Guo <hanjun.guo(a)linaro.org> + * * [GTDT] Generic Timer Description Table * Format: [ByteLength] FieldName : HexFieldValue * @@ -21,22 +22,32 @@ [0004] Flags (decoded below) : 00000001 Memory Present : 1 -[0004] Secure PL1 Interrupt : 00000000 -[0004] SPL1 Flags (decoded below) : 00000000 - Trigger Mode : 0 +/* In Foundation model's dts file, the last cell of interrupts + * is 0xff01, it means its cpu mask is FF, and trigger type + * and flag is 1 = low-to-high edge triggered. + * + * so in ACPI the Trigger Mode is 1 - Edge triggered, and + * Polarity is 0 - Active high as ACPI spec describled. + * + * using direct mapping for hwirqs, it means that we using + * ID [16, 31] for PPI, not [0, 15] used in FDT. + */ +[0004] Secure PL1 Interrupt : 0000001d +[0004] SPL1 Flags (decoded below) : 00000001 + Trigger Mode : 1 Polarity : 0 -[0004] Non-Secure PL1 Interrupt : 00000000 -[0004] NSPL1 Flags (decoded below) : 00000000 - Trigger Mode : 0 +[0004] Non-Secure PL1 Interrupt : 0000001e +[0004] NSPL1 Flags (decoded below) : 00000001 + Trigger Mode : 1 Polarity : 0 -[0004] Virtual Timer Interrupt : 00000000 -[0004] VT Flags (decoded below) : 00000000 - Trigger Mode : 0 +[0004] Virtual Timer Interrupt : 0000001b +[0004] VT Flags (decoded below) : 00000001 + Trigger Mode : 1 Polarity : 0 -[0004] Non-Secure PL2 Interrupt : 00000000 -[0004] NSPL2 Flags (decoded below) : 00000000 - Trigger Mode : 0 +[0004] Non-Secure PL2 Interrupt : 0000001a +[0004] NSPL2 Flags (decoded below) : 00000001 + Trigger Mode : 1 Polarity : 0 -- 1.7.9.5

10 years, 11 months

Re: [Linaro-acpi] UEFI Clock

by Hanjun Guo

Hi Loc, Grant, >On Thu, 14 Nov 2013 16:01:13 -0800, Loc Ho <lho@xxxxxxx> wrote: >> Hi Mike, >> >> I will be looking into covering the clock driver to support UEFI. >> Before I do this, can someone explain to me how x86 system handle each >> IP clock as I don't see such thing? > >UEFI is completely unrelated to the clock drivers, it is only a firmware >interface for the OS loader. UEFI mostly disappears after Linux is >loaded. Are you perhaps asking about ACPI? > >There isn't such a thing on x86. This is entirely new territory. On x86 >as far as I know any clock manipulation that does need to be done would >be performed by an ACPI method, but there is no concept of an IP clock >in the ACPI namespace, and so no standard way of describing them. Yes, there is no standard way (ACPI device object or ACPI table) to describe clocks for x86 in ACPI spec, but there is a table called GTDT (Generic Timer Description Table) for ARM which contains information for arch timer initialization. you can refer to ACPI spec 5.0 chapter 5.2.24: http://www.acpi.info/spec50.htm > >You'd be much better of talking to Al Stone and Grame Gregory about what >their plans are for clock support in ACPI and to post your question to >the ACPI mailing list. We already finished the implementation of convert fixed clock and arch timer to ACPI, and I had already post the RFC patch set for review now: http://marc.info/?l=linaro-acpi&m=138450991609818&w=2 http://marc.info/?l=linaro-acpi&m=138198249622451&w=2 Thanks Hanjun

10 years, 11 months

[PATCH] ACPI: ARM: link ARM and the ACPI reduced hardware profile

by al.stone＠linaro.org

From: Al Stone <ahs3(a)redhat.com> Modify the kernel configuration so that if ARM is selected, then ACPI_REDUCED_HARDWARE is also selected. Signed-off-by: Al Stone <al.stone(a)linaro.org> --- drivers/acpi/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 099ca81..23522b4 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -5,6 +5,7 @@ config ACPI_ARM bool select EARLY_IOREMAP + select ACPI_REDUCED_HARDWARE menuconfig ACPI bool "ACPI (Advanced Configuration and Power Interface) Support" -- 1.8.3.1

10 years, 11 months

[RFC PATCH 0/2] ACPI: Remove fixed clock binding and add uart pl011 platform id

by naresh.bhat＠linaro.org

From: Naresh Bhat <naresh.bhat(a)linaro.org> Removed the fixed clock binding and add uart pl011 to platform ID table. Tested on v8 logs are as below root@genericarmv8:/sys# find . -name LINA* ./bus/acpi/devices/LINA0003:00 ./bus/acpi/devices/LINA0005:00 ./bus/acpi/devices/LINA0007:00 ./bus/acpi/devices/LINA0008:00 ./bus/acpi/devices/LINA0008:01 ./bus/acpi/devices/LINA0008:02 ./bus/acpi/devices/LINA0009:00 ./bus/acpi/devices/LINA000A:00 ./bus/acpi/devices/LINA000A:01 ./bus/acpi/devices/LINA000A:02 ./bus/acpi/devices/LINA000A:03 ./bus/amba/devices/LINA000A:00 ./bus/amba/devices/LINA000A:01 ./bus/amba/devices/LINA000A:02 ./bus/amba/devices/LINA000A:03 ./bus/amba/drivers/uart-pl011/LINA000A:00 ./bus/amba/drivers/uart-pl011/LINA000A:01 ./bus/amba/drivers/uart-pl011/LINA000A:02 ./bus/amba/drivers/uart-pl011/LINA000A:03 ./bus/platform/devices/LINA0003:00 ./bus/platform/devices/LINA0005:00 ./bus/platform/devices/LINA0007:00 ./bus/platform/devices/LINA0008:00 ./bus/platform/devices/LINA0008:01 ./bus/platform/devices/LINA0008:02 ./bus/platform/devices/LINA0009:00 ./bus/platform/drivers/vexpress-sysreg/LINA0009:00 ./bus/platform/drivers/smc91x/LINA0003:00 ./bus/platform/drivers/fixed-clk/LINA0008:00 ./bus/platform/drivers/fixed-clk/LINA0008:01 ./bus/platform/drivers/fixed-clk/LINA0008:02 ./bus/platform/drivers/arm-pmu/LINA0007:00 ./bus/platform/drivers/virtio-mmio/LINA0005:00 ./devices/platform/LINA0003:00 ./devices/platform/LINA0005:00 ./devices/platform/LINA0007:00 ./devices/platform/LINA0008:00 ./devices/platform/LINA0008:01 ./devices/platform/LINA0008:02 ./devices/platform/LINA0009:00 ./devices/platform/LINA000A:00 ./devices/platform/LINA000A:01 ./devices/platform/LINA000A:02 ./devices/platform/LINA000A:03 ./devices/LNXSYSTM:00/device:00/LINA0007:00 ./devices/LNXSYSTM:00/device:00/AMBA0000:00/LINA000A:00 ./devices/LNXSYSTM:00/device:00/AMBA0000:00/LINA000A:01 ./devices/LNXSYSTM:00/device:00/AMBA0000:00/LINA000A:02 ./devices/LNXSYSTM:00/device:00/AMBA0000:00/LINA000A:03 ./devices/LNXSYSTM:00/device:00/ACPI0004:01/LINA0003:00 ./devices/LNXSYSTM:00/device:00/ACPI0004:01/LINA0008:00 ./devices/LNXSYSTM:00/device:00/ACPI0004:01/LINA0008:01 ./devices/LNXSYSTM:00/device:00/ACPI0004:01/LINA0008:02 ./devices/LNXSYSTM:00/device:00/ACPI0004:01/ACPI0004:02/LINA0005:00 ./devices/LNXSYSTM:00/device:00/ACPI0004:01/ACPI0004:02/LINA0009:00 root@genericarmv8:/sys# Naresh Bhat (2): arm64: dts: remove the fixed clock binding ACPI: Add uart pl011 platform ID arch/arm64/boot/dts/foundation-v8-acpi.dts | 2 +- drivers/acpi/acpi_platform.c | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) -- 1.7.9.5

10 years, 11 months

[RFC Resend PATCH 0/5] Convert the fixed clock to ACPI

by Hanjun Guo

This is the RFC version for converting the fixed clock to ACPI. Since the ACPI namespace is ok at the very late stage of system boot, so I did some major change in boot sequence for the enumeration of fixed clock, amba bus and its child device. I think this part should be review carefully. For DT, it works well for armv8 foudation model after the change in boot sequence, but the UART and amba bus are dependent on the fixed clock, if I only convert the fixed clock to ACPI, UART will not work. So this is the RFC version and the UART will be converted together in next version. Hanjun Guo (5): Driver / clk: add platform driver for fixed clock ACPI / ARM64: Whitelist the ACPI ID for fixed clock ACPI / platform: add some comments for internel registry of _HID names ACPI / fixed-clock: Add ACPI driver for fixed clock Clk / fixed clock: Delay the enumeration of fixed clock and make it popssible for ACPI arch/arm64/kernel/setup.c | 2 +- drivers/acpi/acpi_platform.c | 7 ++-- drivers/clk/clk-fixed-rate.c | 78 +++++++++++++++++++++++++++++++++++++++++- 3 files changed, 82 insertions(+), 5 deletions(-) -- 1.7.9.5

10 years, 11 months

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