- Linaro-acpi - lists.linaro.org

[RFC V2 PATCH 0/6] ACPI: ARM: Register irq with ACPI and not DT.

by Amit Daniel Kachhap

hi, The patches in the series are work in progress and as discussed with Al Stone and Hanjun include changes in the GTDT acpi table to add missing elements for ARM platforms. Elements added are Timer frequency, interrupt count(currently 8 supported), timer ID(This will be used to invoke the correct controller). Still more TODO's are identified. * To add timer clock names. * if this __init invoking mechanism is finalised then other similar devices can use this like clock, GIC etc. * GTDT can ultimately be made CTDT(Common timer descriptor table) to other classes of timers like external exynos MCT. Changes in V2: * Added new fields in GTDT acpi table. * Infrastructure to invoke the correct timer controller. Thanks in advance. Amit Amit Daniel Kachhap (6): irqdomain: Add a new API irq_create_default_mapping ACPI: ARM: Update acpi_register_gsi to register with the core IRQ subsystem irqchip: gic: Fix to make dt node check optional in case of ACPI acpi: gtdt: Update GTDT tables to add more fields clocksource:acpi: Add macro CLOCKSOURCE_ACPI_DECLARE clocksource: arch_timer: acpi: Use GTDT table to gather data drivers/acpi/plat/arm/boot.c | 27 +++++++- drivers/clocksource/arm_arch_timer.c | 111 +++++++++++++++++++++++++++++----- drivers/clocksource/clksrc-of.c | 32 ++++++++++ drivers/irqchip/irq-gic.c | 2 + include/acpi/actbl3.h | 22 +++++++ include/asm-generic/vmlinux.lds.h | 6 ++ include/linux/clocksource.h | 13 ++++ include/linux/irqdomain.h | 2 + kernel/irq/irqdomain.c | 35 +++++++++++ 9 files changed, 232 insertions(+), 18 deletions(-)

11 years, 6 months

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[PATCH] clk / clkdev: fix the comments in clk_register_clkdev

by Hanjun Guo

'dev_id' in the comments of clk_register_clkdev should be 'dev_fmt' here. Signed-off-by: Hanjun Guo <hanjun.guo(a)linaro.org> --- drivers/clk/clkdev.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/clk/clkdev.c b/drivers/clk/clkdev.c index 442a313..825b52b 100644 --- a/drivers/clk/clkdev.c +++ b/drivers/clk/clkdev.c @@ -270,9 +270,9 @@ EXPORT_SYMBOL(clkdev_drop); * clk_register_clkdev - register one clock lookup for a struct clk * @clk: struct clk to associate with all clk_lookups * @con_id: connection ID string on device - * @dev_id: format string describing device name + * @dev_fmt: format string describing device name * - * con_id or dev_id may be NULL as a wildcard, just as in the rest of + * con_id or dev_fmt may be NULL as a wildcard, just as in the rest of * clkdev. * * To make things easier for mass registration, we detect error clks -- 1.7.9.5

11 years, 6 months

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[PATCH] iASL: Add template support for dbg2

by naresh.bhat＠linaro.org

From: Naresh Bhat <naresh.bhat(a)linaro.org> This patch will add the template support for dbg2. $ iasl -T DBG2 DBG2: No template available Signed-off-by: Naresh Bhat <naresh.bhat(a)linaro.org> --- source/common/dmtable.c | 2 +- source/compiler/dtcompiler.h | 1 + source/compiler/dttemplate.h | 10 ++++++++++ 3 files changed, 12 insertions(+), 1 deletion(-) diff --git a/source/common/dmtable.c b/source/common/dmtable.c index 12b8905..5552553 100644 --- a/source/common/dmtable.c +++ b/source/common/dmtable.c @@ -358,7 +358,7 @@ ACPI_DMTABLE_DATA AcpiDmTableData[] = {ACPI_SIG_BOOT, AcpiDmTableInfoBoot, NULL, NULL, TemplateBoot, "Simple Boot Flag Table"}, {ACPI_SIG_CPEP, NULL, AcpiDmDumpCpep, DtCompileCpep, TemplateCpep, "Corrected Platform Error Polling table"}, {ACPI_SIG_CSRT, NULL, AcpiDmDumpCsrt, DtCompileCsrt, TemplateCsrt, "Core System Resource Table"}, - {ACPI_SIG_DBG2, AcpiDmTableInfoDbg2, AcpiDmDumpDbg2, NULL, NULL, "Debug Port table type 2"}, + {ACPI_SIG_DBG2, AcpiDmTableInfoDbg2, AcpiDmDumpDbg2, NULL, TemplateDbg2, "Debug Port table type 2"}, {ACPI_SIG_DBGP, AcpiDmTableInfoDbgp, NULL, NULL, TemplateDbgp, "Debug Port table"}, {ACPI_SIG_DMAR, NULL, AcpiDmDumpDmar, DtCompileDmar, TemplateDmar, "DMA Remapping table"}, {ACPI_SIG_ECDT, AcpiDmTableInfoEcdt, NULL, NULL, TemplateEcdt, "Embedded Controller Boot Resources Table"}, diff --git a/source/compiler/dtcompiler.h b/source/compiler/dtcompiler.h index 9868662..96ece50 100644 --- a/source/compiler/dtcompiler.h +++ b/source/compiler/dtcompiler.h @@ -575,6 +575,7 @@ extern const unsigned char TemplateBert[]; extern const unsigned char TemplateBgrt[]; extern const unsigned char TemplateCpep[]; extern const unsigned char TemplateCsrt[]; +extern const unsigned char TemplateDbg2[]; extern const unsigned char TemplateDbgp[]; extern const unsigned char TemplateDmar[]; extern const unsigned char TemplateEcdt[]; diff --git a/source/compiler/dttemplate.h b/source/compiler/dttemplate.h index f131b62..e86c303 100644 --- a/source/compiler/dttemplate.h +++ b/source/compiler/dttemplate.h @@ -257,6 +257,16 @@ const unsigned char TemplateDbgp[] = 0x00,0x00,0x00,0x00 /* 00000030 "...." */ }; +const unsigned char TemplateDbg2[] = +{ + 0x44,0x42,0x47,0x32,0x2C,0x00,0x00,0x00, /* 00000000 "DBG2,..." */ + 0x01,0xD3,0x4C,0x49,0x4E,0x41,0x52,0x4F, /* 00000008 "..LINARO" */ + 0x54,0x45,0x4D,0x50,0x4C,0x41,0x54,0x45, /* 00000010 "TEMPLATE" */ + 0x01,0x00,0x00,0x00,0x49,0x4E,0x54,0x4C, /* 00000018 "....INTL" */ + 0x27,0x09,0x13,0x20,0x44,0x00,0x00,0x00, /* 00000020 "'.. D..." */ + 0x01,0x00,0x00,0x00 /* 00000028 "...." */ +}; + const unsigned char TemplateDmar[] = { 0x44,0x4D,0x41,0x52,0x8C,0x00,0x00,0x00, /* 00000000 "DMAR...." */ -- 1.7.9.5

11 years, 7 months

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[PATCH 0/2] Add Debug Port Table 2 (DBG2)

by naresh.bhat＠linaro.org

From: Naresh Bhat <naresh.bhat(a)linaro.org> The patch set will add the DBG2 table, compilation support. I have just added only one sample SER0 device. If DBG2 table fields, values looks ok. Then I will add 3 more devices (SER1 to SER3), Since there are 4 UART devices in foundation-v8 model. Signed-off-by: Naresh Bhat <naresh.bhat(a)linaro.org> Naresh Bhat (2): dbg2: Add dbg2 table Add support to compile dbg2 table platforms/foundation-v8.acpi/dbg2.asl | 47 ++++++++++++++++++++ .../foundation-v8.acpi/foundation-v8.manifest | 1 + platforms/foundation-v8.acpi/xsdt.asl | 1 + tools/common/build_aml.c | 1 + tools/common/check_aml.c | 1 + tools/common/include/check_aml.h | 1 + 6 files changed, 52 insertions(+) create mode 100644 platforms/foundation-v8.acpi/dbg2.asl -- 1.7.9.5

11 years, 7 months

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[PATCH 0/3 v3] Port EINJ table to armv7/8

by Tomasz Nowicki

EINJ table is fully implemented in kernel and no changes were needed to bring it up on armv7/8 arch. Along with work on EINJ coulpe of steps were done like: 1. Expand bfapei tool so it can create blob which pretend h/w registers for EINJ driver. 2. Filling address in EINJ table according to those in blob. 3. Trigger error using existing injection kernel mechanism. See commit for more details. Changes for v2: - add more descriptive commit log Changes for v3: - replace constant values with defines Tomasz Nowicki (4): bfapei: Move common functionality to separate function. bfapei: Expand bfapei tool to EINJ table testing. acpi, apei, einj: Fill in EINJ table according to address in EINJ blobs. acpi, apei, einj: Relace constant value with defines. platforms/exynos5250-arndale.acpi/einj.asl | 20 +++--- platforms/foundation-v8.acpi/einj.asl | 20 +++--- platforms/rtsm_ve-aemv8a.acpi/einj.asl | 20 +++--- tools/bfapei/bfapei.c | 104 +++++++++++++++++++++++----- tools/bfapei/bfapei.h | 30 ++++++-- tools/common/include/acpi.h | 77 ++++++++++++++++++++ 6 files changed, 215 insertions(+), 56 deletions(-) -- 1.7.9.5

11 years, 7 months

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[PATCH] iASL: Fix Table Info handler for DBG2

by naresh.bhat＠linaro.org

From: Naresh Bhat <naresh.bhat(a)linaro.org> Fix dbg2.asl compilation issue. The DBG2 table is not able to compile because of "Table Info" handler call is missing. The DBG2 compilation logs are as below $ iasl dbg2.asl Intel ACPI Component Architecture ASL Optimizing Compiler version 20130927-64 [Oct 10 2013] Copyright (c) 2000 - 2013 Intel Corporation Error 6126 - Could not compile input file dbg2.asl 12: [0004] Info Offset : 00000044 [First DDIS entry] Error 6010 - Internal compiler error ^ (Missing table dispatch info) Table Input: dbg2.asl - 38 lines, 2383 bytes, 9 fields Compilation complete. 2 Errors, 0 Warnings, 0 Remarks Signed-off-by: Naresh Bhat <naresh.bhat(a)linaro.org> --- source/common/dmtable.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/source/common/dmtable.c b/source/common/dmtable.c index fa7b300..12b8905 100644 --- a/source/common/dmtable.c +++ b/source/common/dmtable.c @@ -358,7 +358,7 @@ ACPI_DMTABLE_DATA AcpiDmTableData[] = {ACPI_SIG_BOOT, AcpiDmTableInfoBoot, NULL, NULL, TemplateBoot, "Simple Boot Flag Table"}, {ACPI_SIG_CPEP, NULL, AcpiDmDumpCpep, DtCompileCpep, TemplateCpep, "Corrected Platform Error Polling table"}, {ACPI_SIG_CSRT, NULL, AcpiDmDumpCsrt, DtCompileCsrt, TemplateCsrt, "Core System Resource Table"}, - {ACPI_SIG_DBG2, NULL, AcpiDmDumpDbg2, NULL, NULL, "Debug Port table type 2"}, + {ACPI_SIG_DBG2, AcpiDmTableInfoDbg2, AcpiDmDumpDbg2, NULL, NULL, "Debug Port table type 2"}, {ACPI_SIG_DBGP, AcpiDmTableInfoDbgp, NULL, NULL, TemplateDbgp, "Debug Port table"}, {ACPI_SIG_DMAR, NULL, AcpiDmDumpDmar, DtCompileDmar, TemplateDmar, "DMA Remapping table"}, {ACPI_SIG_ECDT, AcpiDmTableInfoEcdt, NULL, NULL, TemplateEcdt, "Embedded Controller Boot Resources Table"}, -- 1.7.9.5

11 years, 7 months

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[PATCH 0/3 v2] Port EINJ table to armv7/8

by Tomasz Nowicki

EINJ table is fully implemented in kernel and no changes were needed to bring it up on armv7/8 arch. Along with work on EINJ coulpe of steps were done like: 1. Expand bfapei tool so it can create blob which pretend h/w registers for EINJ driver. 2. Filling address in EINJ table according to those in blob. 3. Trigger error using existing injection kernel mechanism. See commit for more details. Changes for v2: - add more descriptive commit log Tomasz Nowicki (3): bfapei: Move common functionality to separate function. bfapei: Expand bfapei tool to EINJ table testing. acpi, apei, einj: Fill in EINJ table according to address in EINJ blobs. platforms/exynos5250-arndale.acpi/einj.asl | 20 +++--- platforms/foundation-v8.acpi/einj.asl | 20 +++--- platforms/rtsm_ve-aemv8a.acpi/einj.asl | 20 +++--- tools/bfapei/bfapei.c | 101 ++++++++++++++++++++++------ tools/bfapei/bfapei.h | 30 +++++++-- tools/common/include/acpi.h | 57 ++++++++++++++++ 6 files changed, 192 insertions(+), 56 deletions(-) -- 1.7.9.5

11 years, 7 months

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Fwd: Re: [PATCH 0/3] Hacks for APEI tables test.

by Tomasz Nowicki

-- Treść oryginalnej wiadomości -- Temat: Re: [Linaro-acpi] [PATCH 0/3] Hacks for APEI tables test. Data: Thu, 10 Oct 2013 09:45:54 +0200 Nadawca: Tomasz Nowicki <tomasz.nowicki(a)linaro.org> Adresat: Al Stone <al.stone(a)linaro.org> W dniu 09.10.2013 22:33, Al Stone pisze: > On 09/06/2013 08:07 AM, Tomasz Nowicki wrote: >> These commits were created to make APEI tables testable. All should be >> pushed >> to some test brunch so anybody could test it on his own, reused etc. >> >> Tomasz Nowicki (3): >> acpi, apei, erst: Reserve no cachable region for persistent storage. >> acpi, apei, einj: Hack EINJ driver to enable injection GHES and >> kernel panic from userspace. >> apci, apei, arm64: Make some space for APEI blob. >> >> arch/arm64/boot/dts/foundation-v8-acpi.dts | 2 +- >> drivers/acpi/apei/einj.c | 27 >> +++++++++++++++++++++++++++ >> drivers/acpi/apei/erst.c | 2 +- >> 3 files changed, 29 insertions(+), 2 deletions(-) >> > > So I think these patches are okay as they are. Are you > working on this for UEFI, also? I'd like to see a separate > patch enabling this to work for the UEFI case also as soon > as we can. 1. Since we can trigger APEI errors using simulated SCI we do not need second patch and only fist and third patch are on special branch right now. 2. This patch set should work for UEFI but I need to check how to load APEI blob from UEFI. So yes this require additional invesitation or eventual development. Thanks for input on this. I will add another card for this. Tomasz

11 years, 7 months

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[PATCH] ACPI: improve acpi_extract_package() utility

by al.stone＠linaro.org

From: Al Stone <ahs3(a)redhat.com> The current version requires one to know the size of the package a priori; this is almost impossible if the package is composed of strings of variable length. This change allows the utility to allocate a buffer of the proper size if asked. Signed-off-by: Al Stone <al.stone(a)linaro.org> --- drivers/acpi/utils.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index 552248b..fc2cd32 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -169,11 +169,20 @@ acpi_extract_package(union acpi_object *package, /* * Validate output buffer. */ - if (buffer->length < size_required) { + if (buffer->length == ACPI_ALLOCATE_BUFFER) { + buffer->pointer = ACPI_ALLOCATE(size_required); + if (!buffer->pointer) + return AE_NO_MEMORY; buffer->length = size_required; - return AE_BUFFER_OVERFLOW; - } else if (buffer->length != size_required || !buffer->pointer) { - return AE_BAD_PARAMETER; + memset(buffer->pointer, 0, size_required); + } else { + if (buffer->length < size_required) { + buffer->length = size_required; + return AE_BUFFER_OVERFLOW; + } else if (buffer->length != size_required || + !buffer->pointer) { + return AE_BAD_PARAMETER; + } } head = buffer->pointer; -- 1.8.3.1

11 years, 7 months

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[RFC PATCH] ACPI: ASL: Add GTDT table for exynos5440

by Amit Daniel Kachhap

Using exynos5440 for testing the ACPI interrupt mapping/parsing as this platform uses arm internal timer. Signed-off-by: Amit Daniel Kachhap <amit.daniel(a)samsung.com> --- Hi, As requested by Al Stone and Hanjun I am sending the GTDT asl table. I am not using arndale for testing this as it uses external arm timer coming from exynos combiner which may be complex to use at this stage. Thanks, Amit Daniel platforms/exynos5440-ssdk5440.acpi/gtdt.asl | 42 +++++++++++++++++++++++++++ 1 files changed, 42 insertions(+), 0 deletions(-) create mode 100644 platforms/exynos5440-ssdk5440.acpi/gtdt.asl diff --git a/platforms/exynos5440-ssdk5440.acpi/gtdt.asl b/platforms/exynos5440-ssdk5440.acpi/gtdt.asl new file mode 100644 index 0000000..c235f70 --- /dev/null +++ b/platforms/exynos5440-ssdk5440.acpi/gtdt.asl @@ -0,0 +1,42 @@ +/* + * Copyright (c) 2013, Al Stone <al.stone(a)linaro.org> + * + * [GTDT] Generic Timer Description Table + * Format: [ByteLength] FieldName : HexFieldValue + * + * This source is released under the terms of the GPLv2. + */ + +[0004] Signature : "GTDT" +[0004] Table Length : 00000050 +[0001] Revision : 01 +[0001] Checksum : F1 +[0006] Oem ID : "LINARO" +[0008] Oem Table ID : "SSDK " +[0004] Oem Revision : 00000001 +[0004] Asl Compiler ID : "INTL" +[0004] Asl Compiler Revision : 20110623 + +[0008] Timer Address : 0000000000000000 +[0004] Flags (decoded below) : 00000001 + Memory Present : 1 + +[0004] Secure PL1 Interrupt : 0000000d +[0004] SPL1 Flags (decoded below) : 00000000 + Trigger Mode : 0 + Polarity : 1 + +[0004] Non-Secure PL1 Interrupt : 0000000e +[0004] NSPL1 Flags (decoded below) : 00000000 + Trigger Mode : 0 + Polarity : 1 + +[0004] Virtual Timer Interrupt : 0000000b +[0004] VT Flags (decoded below) : 00000000 + Trigger Mode : 0 + Polarity : 1 + +[0004] Non-Secure PL2 Interrupt : 0000000a +[0004] NSPL2 Flags (decoded below) : 00000000 + Trigger Mode : 0 + Polarity : 1 -- 1.7.1

11 years, 7 months

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[PATCH 0/3] Hacks for APEI tables test.

by Tomasz Nowicki

These commits were created to make APEI tables testable. All should be pushed to some test brunch so anybody could test it on his own, reused etc. Tomasz Nowicki (3): acpi, apei, erst: Reserve no cachable region for persistent storage. acpi, apei, einj: Hack EINJ driver to enable injection GHES and kernel panic from userspace. apci, apei, arm64: Make some space for APEI blob. arch/arm64/boot/dts/foundation-v8-acpi.dts | 2 +- drivers/acpi/apei/einj.c | 27 +++++++++++++++++++++++++++ drivers/acpi/apei/erst.c | 2 +- 3 files changed, 29 insertions(+), 2 deletions(-) -- 1.7.9.5

11 years, 7 months

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Cherry-picked early_ioremap patch for aarch64

by Al Stone

The patch below adds in an early_ioremap for aarch64 allowing the ACPI code to function. It's still under discussion upstream and will likely change but it will allow work to continue on aarch64 in the short-term. Please test and let us know if it works or if it uncovers any other interesting issues. -- ciao, al ----------------------------------- Al Stone Software Engineer Linaro Enterprise Group al.stone(a)linaro.org -----------------------------------

11 years, 7 months

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[PATCH 0/2] Boot Error Record Table (BERT) support

by Tomasz Nowicki

This is re-use existing patch submitted by Huang Ying <ying.huang(a)intel.com> with one small modification (see commits). The first idea was to use just printk to inform about any errors that were not consumed by OS. Errors listed in HEST table should point to the same "Error status block" ESB structures as BERT does. OS handling errors should clear errors status bit in ESB for given error at the end of error recovery procedure. Case where error appeared to be too serious OS can reset machine immediately without clearing bit in ESB. During boot, kernel examine each error status bit from ESB list (pointed from BERT) and see if there are any unhandled errors. BERT table was tested along with HEST and EINJ driver, in the following way: 1. Fill in ESB using EINJ hacked driver and do not clear erros status in ESB, this way unhandler error is simulated and BERT table could be used later: root@localhost:~# echo 1 > /sys/kernel/debug/apei/einj/error_inject 2. Reboot machin and check whether BERT driver notice injected error: ... [ 2.518179] [Hardware Error]: Error record from previous boot: [ 2.523342] [Hardware Error]: APEI generic hardware error status [ 2.548457] [Hardware Error]: severity: 1, fatal [ 2.574705] [Hardware Error]: section: 0, severity: 0, recoverable [ 2.584010] [Hardware Error]: flags: 0x00 [ 2.587937] [Hardware Error]: section_type: memory error ... 3. Kernel clear status bit so next boot would not print it again.

11 years, 7 months

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[PATCH 0/1] arm acpi ioremap changes

by Graeme Gregory

This is a cleaned up version of patches posted earlier by Al Stone. I have split them into patches with attempt to make only one change per patch. Graeme

11 years, 7 months

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[PATCH] ARM: with certain kernel configs, a stub function definition was missing.

by al.stone＠linaro.org

From: Al Stone <ahs3(a)redhat.com> This patch adds a stub function for arch_fix_phys_package_id() for those kernel configurations that need it. Found while trying to build a VExpress configuration. Signed-off-by: Al Stone <al.stone(a)linaro.org> --- arch/arm/include/asm/topology.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/include/asm/topology.h b/arch/arm/include/asm/topology.h index a6ff5cc..70d9c47 100644 --- a/arch/arm/include/asm/topology.h +++ b/arch/arm/include/asm/topology.h @@ -66,6 +66,7 @@ static inline void init_cpu_topology(void) { } static inline void store_cpu_topology(unsigned int cpuid) { } static inline int cluster_to_logical_mask(unsigned int socket_id, cpumask_t *cluster_mask) { return -EINVAL; } +static inline void arch_fix_phys_package_id(int num, u32 slot) { }; #endif -- 1.8.3.1

11 years, 7 months

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[PATCH 0/4] driver core: Introduce initcall_driver() to eliminate boilerplate code

by Hanjun Guo

Lots of device drivers especially for platform/I2C/SPI bus devices, they want to be initialized earlier than other devices, so the driver use initcall such as subsys_initcall for the device initialization. But for those drivers, lots of them just do nothing special in xxx_initcall/module_exit, and produce lots of boilerplate. This patch set introduces a helper macro initcall_driver() to eliminate lots of boilerplate just like module_driver() did, and use it for platform/I2C/SPI bus devices. I use following command under the lastest kernel source code: $grep -r -E "*_initcall" drivers/ | cut -d":" -f1 |xargs grep -E "return platform_driver_register|return i2c_add_driver|return spi_register_driver" | cut -d":" -f1 | xargs grep "module_exit" | wc -l and get 205 hits, so if we use helper macro initcall_driver(), we can reduce thousands lines of code. Hanjun Guo (4): driver core: introduce helper macro initcall_driver() platform device: introduce helper macro initcall_platform_driver() i2c: introduce helper macro initcall_i2c_driver() spi: introduce helper macro initcall_spi_driver() include/linux/device.h | 27 +++++++++++++++++++++++++++ include/linux/i2c.h | 11 +++++++++++ include/linux/platform_device.h | 11 +++++++++++ include/linux/spi/spi.h | 11 +++++++++++ 4 files changed, 60 insertions(+) -- 1.7.9.5

11 years, 7 months

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[RFC PATCH 0/3] ACPI: ARM: Register irq with ACPI and not DT.

by Amit Daniel Kachhap

hi, The patches in the series are just in work in progress and intended to clear some doubts as pointed below. Any comment/direction is helpful from the linaro acpi group. 1) Basic controllers like GIC and timer need to be initialised before platform drivers are ready so question is how to invoke the __init of these devices. Is there any function to raw parse the ACPI tables similar to existing DT API's? 2) Some important elements like clock frequency is missing from the GTDT table. how to get them? Thanks in advance. Amit Daniel Kachhap (3): irqdomain: Add a new API irq_create_default_mapping ACPI: ARM: Update acpi_register_gsi to register with the core IRQ subsystem ACPI: clocksource: arch_timer: Use GTDT table to gather data drivers/acpi/plat/arm/boot.c | 27 ++++++++++++++-- drivers/clocksource/arm_arch_timer.c | 58 ++++++++++++++++++++++++++++++++++ include/linux/irqdomain.h | 2 + kernel/irq/irqdomain.c | 35 ++++++++++++++++++++ 4 files changed, 119 insertions(+), 3 deletions(-)

11 years, 7 months

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[PATCH 00/10] Convert to module_platform_driver() in video driver

by Hanjun Guo

This patch set just did one simple thing: convert to module_platform_driver() in video driver to simplify the code. Hanjun Guo (10): Video / hecubafb: Use module_platform_driver() to simplify code Video / bfin-t350mcqb-fb: Use module_platform_driver() to simplify code Video / metronomefb: Use module_platform_driver() to simplify code Video / jz4740_fb: Use module_platform_driver() to simplify code Video / da8xx-fb: Use module_platform_driver() to simplify code Video / cobalt_lcdfb: Use module_platform_driver() to simplify code Video / broadsheetfb: Use module_platform_driver() to simplify code Video / bf54x-lq043fb: Use module_platform_driver() to simplify code Video / au1200fb: Use module_platform_driver() to simplify code Video / au1100fb: Use module_platform_driver() to simplify code drivers/video/au1100fb.c | 14 +------------- drivers/video/au1200fb.c | 16 +--------------- drivers/video/bf54x-lq043fb.c | 14 +------------- drivers/video/bfin-t350mcqb-fb.c | 14 +------------- drivers/video/broadsheetfb.c | 14 +------------- drivers/video/cobalt_lcdfb.c | 14 +------------- drivers/video/da8xx-fb.c | 14 +------------- drivers/video/hecubafb.c | 14 +------------- drivers/video/jz4740_fb.c | 13 +------------ drivers/video/metronomefb.c | 14 +------------- 10 files changed, 10 insertions(+), 131 deletions(-) -- 1.7.9.5

11 years, 7 months

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[PATCH 1/2] ide / au1xxx-ide: Use module_platform_driver() to simplify code

by Hanjun Guo

Convert to module_platform_driver() to simplify code. Signed-off-by: Hanjun Guo <hanjun.guo(a)linaro.org> --- drivers/ide/au1xxx-ide.c | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) diff --git a/drivers/ide/au1xxx-ide.c b/drivers/ide/au1xxx-ide.c index 259786c..bdaf8a5 100644 --- a/drivers/ide/au1xxx-ide.c +++ b/drivers/ide/au1xxx-ide.c @@ -591,19 +591,7 @@ static struct platform_driver au1200_ide_driver = { .probe = au_ide_probe, .remove = au_ide_remove, }; - -static int __init au_ide_init(void) -{ - return platform_driver_register(&au1200_ide_driver); -} - -static void __exit au_ide_exit(void) -{ - platform_driver_unregister(&au1200_ide_driver); -} +module_paltform_driver(au1200_ide_driver); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("AU1200 IDE driver"); - -module_init(au_ide_init); -module_exit(au_ide_exit); -- 1.7.9.5

11 years, 7 months

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[PATCH] Staging / quickstart: remove reduplicate if(acpi_disabled) check

by Hanjun Guo

In acpi_bus_register_driver(), there is an if (acpi_disabled) check, so the if(acpi_disabled) before it is reduplicate, remove it. Signed-off-by: Hanjun Guo <hanjun.guo(a)linaro.org> --- drivers/staging/quickstart/quickstart.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/staging/quickstart/quickstart.c b/drivers/staging/quickstart/quickstart.c index 4247d60..9f6ebdb 100644 --- a/drivers/staging/quickstart/quickstart.c +++ b/drivers/staging/quickstart/quickstart.c @@ -390,10 +390,6 @@ static int __init quickstart_init(void) { int ret; - /* ACPI Check */ - if (acpi_disabled) - return -ENODEV; - /* ACPI driver register */ ret = acpi_bus_register_driver(&quickstart_acpi_driver); if (ret) -- 1.7.9.5

11 years, 7 months

2
1
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[PATCH] ACPI / scan: fix typo in comments of acpi_bus_unregister_driver()

by Hanjun Guo

"APIC" should be "ACPI" here. Signed-off-by: Hanjun Guo <hanjun.guo(a)linaro.org> --- drivers/acpi/scan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index fbdb82e..611ce90 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -1121,7 +1121,7 @@ int acpi_bus_register_driver(struct acpi_driver *driver) EXPORT_SYMBOL(acpi_bus_register_driver); /** - * acpi_bus_unregister_driver - unregisters a driver with the APIC bus + * acpi_bus_unregister_driver - unregisters a driver with the ACPI bus * @driver: driver to unregister * * Unregisters a driver with the ACPI bus. Searches the namespace for all -- 1.7.9.5

11 years, 7 months

2
1
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[PATCH 0/4] Make UEFI and ACPI play nice on ARMv7

by al.stone＠linaro.org

From: Al Stone <ahs3(a)redhat.com> This series of patches first sets up the efi_map_regions() function, which is in turn used by setup_arch() to initialize ACPI tables loaded from RAM. For this to work properly, there were bugs to be fixed in both the EFI and ACPI code; these fixes get the two to agree on where the ACPI data is in RAM, and how it is to be addressed at early boot. Al Stone (4): ARM: EFI: make efi_remap_regions() visible for use in setup_arch() ARM: ACPI: insert WARN_ON to make error condition more obvious ARM: clean up the io.h header file ACPI: ARM: use the correct ioremap sequence when loading and using ACPI data arch/arm/include/asm/efi.h | 1 + arch/arm/include/asm/io.h | 9 ++------- arch/arm/kernel/efi.c | 31 +++++++++++++++++++++++-------- arch/arm/kernel/setup.c | 9 ++++++--- drivers/acpi/acpica/tbxface.c | 1 + drivers/acpi/osl.c | 12 ++++++------ drivers/acpi/plat/arm/boot.c | 19 +++++++------------ include/linux/acpi.h | 2 +- include/linux/acpi_io.h | 4 ++++ 9 files changed, 51 insertions(+), 37 deletions(-) -- 1.8.3.1

11 years, 7 months

4
8
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[PATCH 0/3 v2] Convert armv8-pmu to ACPI

by Tomasz Nowicki

This patch set convert PMU driver to ACPI for ARMv8 arch. Despite driver is initialized in early boot stage, no ACPI related actions are taken then. All PMU resources coming from ACPI tables are use by others units once bus is enumerated. Changes for v2: - remove MODULE_DEVICE_TABLE macro since perf_event is not kernel module Tomasz Nowicki (3): ACPI, ARMv8: Whitelist armv8-pmu driver for ACPI. armv8, dts: Move device resources to DSTD ACPI table. armv8, pmu: Add the match table and pointers for ACPI probing to the driver. arch/arm64/boot/dts/foundation-v8-acpi.dts | 4 ++++ arch/arm64/boot/dts/rtsm_ve-aemv8a-acpi.dts | 4 ++++ arch/arm64/kernel/perf_event.c | 13 +++++++++++++ drivers/acpi/acpi_platform.c | 1 + 4 files changed, 22 insertions(+) -- 1.7.9.5

11 years, 7 months

2
4
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[PATCH] ACPICA / hwreg: Use acpi_gbl_reduced_hardware to prevent accessing PM registers

by Hanjun Guo

On hardware reduced platforms, there is no support for the following: - PM Event and Control registers - SCI interrupt (and handler) - Fixed Events - General Purpose Events (GPEs) - Global Lock - ACPI PM timer - FACS table (Waking vectors and Global Lock) acpi_gbl_reduced_hardware is a global flag and can be used to prevent misbehavior on hardware reduced platforms, and this flag is initialized at the very beginning of the system boot when FADT is parsed, this flag is set to 1 when the FACP Hardware Reduced flag is set, so we can use it to prevent accessing registers which do not exist on reduced hardware platform. but when FACP Hardware Reduced flag is set, ACPI drivers will still access some registers directly which do not exist on reduced hardware platform and cause boot failure: [ 9.024370] Unable to handle kernel paging request at virtual address ffffffbffbe00001 [ 9.024423] pgd = ffffffc00007d000 [ 9.024468] [ffffffbffbe00001] *pgd=000000008007f003, *pmd=0000000000000000 [ 9.024538] Internal error: Oops: 96000006 [#1] SMP [ 9.024577] Modules linked in: [ 9.024627] CPU: 0 Not tainted (3.9.0+ #3) [ 9.024691] PC is at acpi_os_read_port+0x58/0xc8 [ 9.024753] LR is at acpi_hw_read_port+0x4c/0xc4 [ 9.024810] pc : [<ffffffc0002810cc>] lr : [<ffffffc0002a4fc4>] pstate: 600003c5 .... [ 9.031956] Call trace: [ 9.032021] [<ffffffc0002810cc>] acpi_os_read_port+0x58/0xc8 [ 9.032094] [<ffffffc0002a4fc4>] acpi_hw_read_port+0x4c/0xc4 [ 9.032165] [<ffffffc0002a4198>] acpi_hw_read+0x6c/0x100 [ 9.032237] [<ffffffc0002a4250>] acpi_hw_read_multiple+0x24/0x70 [ 9.032312] [<ffffffc0002a457c>] acpi_hw_register_read+0xa8/0x164 [ 9.032386] [<ffffffc0002a52dc>] acpi_write_bit_register+0x9c/0x194 [ 9.032472] [<ffffffc0002bffb4>] acpi_processor_get_power_info+0x6c4/0x748 [ 9.032550] [<ffffffc000565220>] acpi_processor_power_init+0xac/0x138 [ 9.032630] [<ffffffc0003f3c00>] acpi_processor_start+0x48/0x138 [ 9.032704] [<ffffffc000565118>] acpi_processor_add+0x43c/0x498 [ 9.032784] [<ffffffc000283a74>] acpi_device_probe+0x3c/0x198 [ 9.032862] [<ffffffc0002ef0fc>] driver_probe_device+0x90/0x348 [ 9.032940] [<ffffffc0002ef450>] __driver_attach+0x9c/0xa0 [ 9.033015] [<ffffffc0002ed40c>] bus_for_each_dev+0x4c/0x8c [ 9.033090] [<ffffffc0002eeb98>] driver_attach+0x20/0x28 [ 9.033166] [<ffffffc0002ee6e0>] bus_add_driver+0xfc/0x254 [ 9.033244] [<ffffffc0002ef8b0>] driver_register+0x6c/0x184 [ 9.033325] [<ffffffc000284894>] acpi_bus_register_driver+0x34/0x44 [ 9.033400] [<ffffffc000559c60>] acpi_processor_init+0x28/0x40 [ 9.033469] [<ffffffc000081438>] do_one_initcall+0x100/0x138 [ 9.033544] [<ffffffc0005448c8>] kernel_init_freeable+0x128/0x1cc [ 9.033620] [<ffffffc0003f2f90>] kernel_init+0x10/0xcc [ 9.033700] Code: d2bf7c02 f2dff7e2 f2ffffe2 8b020000 (79400000) [ 9.033843] ---[ end trace 64376967e6bc20a9 ]--- [ 9.033995] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b So acpi_gbl_reduced_hardware should be used to check if reduced hardware or not, if it is reduced hardware, just return with some error and do not access the no-existent registers. Signed-off-by: Hanjun Guo <hanjun.guo(a)linaro.org> --- drivers/acpi/acpica/hwregs.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/acpi/acpica/hwregs.c b/drivers/acpi/acpica/hwregs.c index 8d2e866..4c270c3 100644 --- a/drivers/acpi/acpica/hwregs.c +++ b/drivers/acpi/acpica/hwregs.c @@ -265,6 +265,11 @@ acpi_status acpi_hw_clear_acpi_status(void) ACPI_FUNCTION_TRACE(hw_clear_acpi_status); + /* If Hardware Reduced flag is set, there are no GPEs */ + if (acpi_gbl_reduced_hardware) { + return_ACPI_STATUS(AE_NOT_IMPLEMENTED); + } + ACPI_DEBUG_PRINT((ACPI_DB_IO, "About to write %04X to %8.8X%8.8X\n", ACPI_BITMASK_ALL_FIXED_STATUS, ACPI_FORMAT_UINT64(acpi_gbl_xpm1a_status.address))); @@ -305,6 +310,10 @@ struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id) { ACPI_FUNCTION_ENTRY(); + if (acpi_gbl_reduced_hardware) { + return (NULL); + } + if (register_id > ACPI_BITREG_MAX) { ACPI_ERROR((AE_INFO, "Invalid BitRegister ID: 0x%X", register_id)); @@ -337,6 +346,11 @@ acpi_status acpi_hw_write_pm1_control(u32 pm1a_control, u32 pm1b_control) ACPI_FUNCTION_TRACE(hw_write_pm1_control); + /* If Hardware Reduced flag is set, there are no PM Control registers */ + if (acpi_gbl_reduced_hardware) { + return_ACPI_STATUS(AE_NOT_IMPLEMENTED); + } + status = acpi_hw_write(pm1a_control, &acpi_gbl_FADT.xpm1a_control_block); if (ACPI_FAILURE(status)) { @@ -370,6 +384,11 @@ acpi_status acpi_hw_register_read(u32 register_id, u32 *return_value) ACPI_FUNCTION_TRACE(hw_register_read); + /* If Hardware Reduced flag is set, there are no PM Control registers */ + if (acpi_gbl_reduced_hardware) { + return_ACPI_STATUS(AE_NOT_IMPLEMENTED); + } + switch (register_id) { case ACPI_REGISTER_PM1_STATUS: /* PM1 A/B: 16-bit access each */ @@ -465,6 +484,11 @@ acpi_status acpi_hw_register_write(u32 register_id, u32 value) ACPI_FUNCTION_TRACE(hw_register_write); + /* If Hardware Reduced flag is set, there are no PM Control registers */ + if (acpi_gbl_reduced_hardware) { + return_ACPI_STATUS(AE_NOT_IMPLEMENTED); + } + switch (register_id) { case ACPI_REGISTER_PM1_STATUS: /* PM1 A/B: 16-bit access each */ /* -- 1.7.9.5

11 years, 7 months

4
16
0 0

[PATCH 0/8 v3] Move most Arndale pin controllers to ACPI

by al.stone＠linaro.org

From: Al Stone <ahs3(a)redhat.com> The first two versions of this patch set were in different submissions. The primary difference with this version is that I've combined and simplified the multiple sets into one comprehensive set, cleaned up the ordering of the patches, and made corrections based on feedback on v2. The intent of this patch set is to enable the Arndale pinctrl devices under ACPI instead of FDT. The ACPI ASL has been submitted as a separate patch set. This patch set includes three of the four devices defined for Arndale. The final device defines GPIO interrupts which will be the subject of a later patch set (interrupts require a diversion into enabling GICs first). NB: the first two patches are generic and can apply to all ACPI branches. The remainder are specific to Arndale and the acpi-ltfixes branch. Al Stone (8): ACPI: make an error message a little cleaner ACPI: improve acpi_extract_package() utility ACPI: ARM: arndale: enable ACPI in the Samsung pinctrl driver ACPI: ARM: arndale: add CONFIG_ACPI ifdefs to pinctrl driver ACPI: ARM: arndale: move pin controller 4 of 4 from FDT to ACPI ACPI: ARM: arndale: move pin controller 3 of 4 from FDT to ACPI ACPI: ARM: arndale: move pin controller 2 of 4 from FDT to ACPI ACPI: ARM: arndale: whitelist the samsung-pinctrl driver for ACPI arch/arm/boot/dts/exynos5250-arndale.dts | 26 ++ arch/arm/boot/dts/exynos5250-pinctrl.dtsi | 2 + arch/arm/boot/dts/exynos5250.dtsi | 6 +- drivers/acpi/acpi_platform.c | 3 + drivers/acpi/osl.c | 2 +- drivers/acpi/utils.c | 17 +- drivers/pinctrl/pinctrl-samsung.c | 513 +++++++++++++++++++++++++++++- drivers/pinctrl/pinctrl-samsung.h | 3 + 8 files changed, 559 insertions(+), 13 deletions(-) -- 1.8.3.1

11 years, 7 months

3
15
0 0

[PATCH 1/1] ASL, RTSMv8, Foundation: Add ASL for PMU driver.

by Tomasz Nowicki

Signed-off-by: Tomasz Nowicki <tomasz.nowicki(a)linaro.org> --- platforms/foundation-v8.acpi/dsdt.asl | 12 ++++++++++++ platforms/rtsm_ve-aemv8a.acpi/dsdt.asl | 12 ++++++++++++ 2 files changed, 24 insertions(+) diff --git a/platforms/foundation-v8.acpi/dsdt.asl b/platforms/foundation-v8.acpi/dsdt.asl index 8643415..10395c3 100644 --- a/platforms/foundation-v8.acpi/dsdt.asl +++ b/platforms/foundation-v8.acpi/dsdt.asl @@ -271,5 +271,17 @@ DefinitionBlock ( Return (RBUF) } } + + Device (PMU0) { + Name (_HID, "LINA0007") + Name (_UID, 0) + + Method (_CRS, 0x0, Serialized) { + Name (RBUF, ResourceTemplate () { + Interrupt (ResourceConsumer, Edge, ActiveBoth, Exclusive, , , ) {92, 93, 94, 95} + }) + Return (RBUF) + } + } } } diff --git a/platforms/rtsm_ve-aemv8a.acpi/dsdt.asl b/platforms/rtsm_ve-aemv8a.acpi/dsdt.asl index ed13b1f..6fb3d6f 100644 --- a/platforms/rtsm_ve-aemv8a.acpi/dsdt.asl +++ b/platforms/rtsm_ve-aemv8a.acpi/dsdt.asl @@ -230,5 +230,17 @@ DefinitionBlock ( Return (RBUF) } } + + Device (PMU0) { + Name (_HID, "LINA0007") + Name (_UID, 0) + + Method (_CRS, 0x0, Serialized) { + Name (RBUF, ResourceTemplate () { + Interrupt (ResourceConsumer, Edge, ActiveBoth, Exclusive, , , ) {92, 93, 94, 95} + }) + Return (RBUF) + } + } } } -- 1.7.9.5

11 years, 7 months

2
1
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[PATCH 0/3] Port EINJ table to armv7/8

by Tomasz Nowicki

EINJ table is fully implemented in kernel and no changes were needed to bring it up on armv7/8 arch. Along with work on EINJ coulpe of steps were done like: 1. Expand bfapei tool so it can create blob which pretend h/w registers for EINJ driver. 2. Filling address in EINJ table according to those in blob. 3. Trigger error using existing injection kernel mechanism. See commit for more details. Tomasz Nowicki (3): bfapei: Move common functionality to separate function. bfapei: Expand bfapei tool to EINJ table testing. acpi, apei, einj: Fill in EINJ table according to address in EINJ blobs. platforms/exynos5250-arndale.acpi/einj.asl | 20 +++--- platforms/foundation-v8.acpi/einj.asl | 20 +++--- platforms/rtsm_ve-aemv8a.acpi/einj.asl | 20 +++--- tools/bfapei/bfapei.c | 101 ++++++++++++++++++++++------ tools/bfapei/bfapei.h | 30 +++++++-- tools/common/include/acpi.h | 57 ++++++++++++++++ 6 files changed, 192 insertions(+), 56 deletions(-) -- 1.7.9.5

11 years, 7 months

2
5
0 0

[PATCH 0/3] Convert armv8-pmu to ACPI

by Tomasz Nowicki

This patch set convert PMU driver to ACPI for ARMv8 arch. Despite driver is initialized in early boot stage, no ACPI related actions are taken then. All PMU resources coming from ACPI tables are use by others units once bus is enumerated. Tomasz Nowicki (3): ACPI, ARMv8: Whitelist armv8-pmu driver for ACPI. armv8, dts: Move device resources to DSTD ACPI table. armv8, pmu: Add the match table and pointers for ACPI probing to the driver. arch/arm64/boot/dts/foundation-v8-acpi.dts | 4 ++++ arch/arm64/boot/dts/rtsm_ve-aemv8a-acpi.dts | 4 ++++ arch/arm64/kernel/perf_event.c | 14 ++++++++++++++ drivers/acpi/acpi_platform.c | 1 + 4 files changed, 23 insertions(+) -- 1.7.9.5

11 years, 7 months

2
5
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[PATCH 1/1] ACPI: Expand SCI_EMULATE patch toward more generic usage.

by Tomasz Nowicki

ACPI spec define that devices can be notified with some well defined values. Handlers from system list are called for notify values within 0-0x7F. In turn, handlers from device list are called for notify value greater than 0x80. Till now only system handler could be called. Now we are able to notify devices with all notify values range that means we can emulate SCI line e.g. to trigger APCI errors. Signed-off-by: Tomasz Nowicki <tomasz.nowicki(a)linaro.org> --- drivers/acpi/sci_emu.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/acpi/sci_emu.c b/drivers/acpi/sci_emu.c index 2f13ca1..08af8e9 100644 --- a/drivers/acpi/sci_emu.c +++ b/drivers/acpi/sci_emu.c @@ -55,7 +55,10 @@ static void sci_notify_client(char *acpi_name, u32 event) */ obj_desc = acpi_ns_get_attached_object(node); if (obj_desc) { - if (obj_desc->common_notify.notify_list[0]) { + if (((event <= ACPI_MAX_SYS_NOTIFY) && + obj_desc->common_notify.notify_list[ACPI_SYSTEM_HANDLER_LIST]) || + (((event > ACPI_MAX_SYS_NOTIFY) && + obj_desc->common_notify.notify_list[ACPI_DEVICE_HANDLER_LIST]))) { /* * Release the lock and queue the item for later * exectuion -- 1.7.9.5

11 years, 7 months

2
1
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[PATCH] arm: acpi: remove the ACPI blob from memory map

by Graeme Gregory

When booting from UEFI the ACPI regions are removed from memory map. So to maintain compatability do the same when the ACPI region is passed from the FDT. Signed-off-by: Graeme Gregory <graeme.gregory(a)linaro.org> --- arch/arm/include/asm/acpi.h | 2 ++ arch/arm/kernel/setup.c | 3 +++ arch/arm64/include/asm/acpi.h | 2 ++ arch/arm64/kernel/setup.c | 3 +++ drivers/acpi/osl.c | 2 +- drivers/acpi/plat/arm/boot.c | 23 +++++++++++++++++++++++ 6 files changed, 34 insertions(+), 1 deletion(-) diff --git a/arch/arm/include/asm/acpi.h b/arch/arm/include/asm/acpi.h index e5ac1b8..ca7efaa 100644 --- a/arch/arm/include/asm/acpi.h +++ b/arch/arm/include/asm/acpi.h @@ -112,6 +112,8 @@ struct acpi_arm_root { }; extern struct acpi_arm_root acpi_arm_rsdp_info; +void arm_acpi_reserve_memory(void); + /* Low-level suspend routine. */ extern int acpi_suspend_lowlevel(void); diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index a440211..ac1bd1f 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -894,6 +894,9 @@ void __init setup_arch(char **cmdline_p) #ifdef CONFIG_EFI efi_memblock_arm_reserve_range(); #endif +#ifdef CONFIG_ACPI + arm_acpi_reserve_memory(); +#endif paging_init(mdesc); request_standard_resources(mdesc); diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h index 3d37c0e..a19b73f 100644 --- a/arch/arm64/include/asm/acpi.h +++ b/arch/arm64/include/asm/acpi.h @@ -90,6 +90,8 @@ struct acpi_arm_root { }; extern struct acpi_arm_root acpi_arm_rsdp_info; +void arm_acpi_reserve_memory(void); + /* Low-level suspend routine. */ extern int acpi_suspend_lowlevel(void); diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 627c6d6..fda34a3 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -272,6 +272,9 @@ void __init setup_arch(char **cmdline_p) arm64_memblock_init(); +#ifdef CONFIG_ACPI + arm_acpi_reserve_memory(); +#endif paging_init(); request_standard_resources(); diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index ebe34b3..18d62c1 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -386,7 +386,7 @@ acpi_map_lookup_virt(void __iomem *virt, acpi_size size) return NULL; } -#ifndef CONFIG_IA64 +#if !defined(CONFIG_IA64) && !defined(CONFIG_ARM64) && !defined(CONFIG_ARM) #define should_use_kmap(pfn) page_is_ram(pfn) #else /* ioremap will take care of cache attributes */ diff --git a/drivers/acpi/plat/arm/boot.c b/drivers/acpi/plat/arm/boot.c index 5ca62dc..130e35a 100644 --- a/drivers/acpi/plat/arm/boot.c +++ b/drivers/acpi/plat/arm/boot.c @@ -754,6 +754,29 @@ int __init acpi_boot_init(void) return 0; } +/* + * make sure that the address passed for ACPI tables which is normall in + * system ram is removed from the kernel memory map + */ +void __init arm_acpi_reserve_memory() +{ + unsigned long section_offset; + unsigned long num_sections; + phys_addr_t addr = acpi_arm_rsdp_info.phys_address; + int size = acpi_arm_rsdp_info.size; + + /* if ACPI tables were not passed in FDT then escape here */ + if (!addr || !size) + return; + + section_offset = addr - (addr & SECTION_MASK); + num_sections = size / SECTION_SIZE; + if (size % SECTION_SIZE) + num_sections++; + + memblock_remove(addr - section_offset, num_sections * SECTION_SIZE); +} + static int __init parse_acpi(char *arg) { if (!arg) -- 1.8.3.1

11 years, 7 months

2
1
0 0

[PATCH] loadtest: xsdt only needs one table

by Graeme Gregory

Extra table entries in mab will create an incorrect blob. Signed-off-by: Graeme Gregory <graeme.gregory(a)linaro.org> --- platforms/loadtest.acpi/xsdt.asl | 3 --- 1 file changed, 3 deletions(-) diff --git a/platforms/loadtest.acpi/xsdt.asl b/platforms/loadtest.acpi/xsdt.asl index cadca58..43de827 100644 --- a/platforms/loadtest.acpi/xsdt.asl +++ b/platforms/loadtest.acpi/xsdt.asl @@ -18,6 +18,3 @@ [0004] Asl Compiler Revision : 20100528 [0008] ACPI Table Address 0 : 0000000000000010 -[0008] ACPI Table Address 0 : 0000000000000020 -[0008] ACPI Table Address 0 : 0000000000000030 -[0008] ACPI Table Address 0 : 0000000000000040 -- 1.8.3.1

11 years, 7 months

2
1
0 0

[PATCH part3 01/13] Remove unnecessary ldr from boot wrapper

by Hanjun Guo

From: Mark Rutland <mark.rutland(a)arm.com> We currently do an ldr from GICC_CTLR to w0, then immediately overwrite w0 with a mov. Reading the GICC_CTLR has no effect on the state of the GIC, so there's no reason to do the ldr. It's also inconsistent with the way we set the GICD_CTLR. Fix this. Signed-off-by: Mark Rutland <mark.rutland(a)arm.com> --- boot.S | 1 - 1 file changed, 1 deletion(-) diff --git a/boot.S b/boot.S index a1f25e2..7c28e84 100644 --- a/boot.S +++ b/boot.S @@ -49,7 +49,6 @@ _start: str w0, [x1], #4 2: ldr x1, =GIC_CPU_BASE // GICC_CTLR - ldr w0, [x1] mov w0, #3 // EnableGrp0 | EnableGrp1 str w0, [x1] -- 1.7.9.5

11 years, 7 months

3
21
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[RFC PATCH] ACPICA / hwreg: Use acpi_gbl_reduced_hardware to prevent accessing PM registers

by Hanjun Guo

On hardware reduced platforms, there is no support for the following: - PM Event and Control registers - SCI interrupt (and handler) - Fixed Events - General Purpose Events (GPEs) - Global Lock - ACPI PM timer - FACS table (Waking vectors and Global Lock) but when FACP Hardware Reduced flag is set, ACPI drivers will still access power management registers directly which will cause oops when system booted. acpi_gbl_reduced_hardware is a global flag and can be used to prevent misbehavior on hardware reduced platforms, and this flag is initialized at the very beginning of the system boot when FADT is parsed, so we can use it to prevent accessing PM registers. There are still lots of other places to be fixed, this is the first patch to fix hte bug we met when --cores=1; I will finish a patch set and send to upstream if you guys have no objections. I think we should start a discussion in ACPI mail list for this bug on hardware reduced platforms now. Signed-off-by: Hanjun Guo <hanjun.guo(a)linaro.org> --- drivers/acpi/acpica/hwregs.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/acpi/acpica/hwregs.c b/drivers/acpi/acpica/hwregs.c index 8d2e866..4c270c3 100644 --- a/drivers/acpi/acpica/hwregs.c +++ b/drivers/acpi/acpica/hwregs.c @@ -265,6 +265,11 @@ acpi_status acpi_hw_clear_acpi_status(void) ACPI_FUNCTION_TRACE(hw_clear_acpi_status); + /* If Hardware Reduced flag is set, there are no GPEs */ + if (acpi_gbl_reduced_hardware) { + return_ACPI_STATUS(AE_NOT_IMPLEMENTED); + } + ACPI_DEBUG_PRINT((ACPI_DB_IO, "About to write %04X to %8.8X%8.8X\n", ACPI_BITMASK_ALL_FIXED_STATUS, ACPI_FORMAT_UINT64(acpi_gbl_xpm1a_status.address))); @@ -305,6 +310,10 @@ struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id) { ACPI_FUNCTION_ENTRY(); + if (acpi_gbl_reduced_hardware) { + return (NULL); + } + if (register_id > ACPI_BITREG_MAX) { ACPI_ERROR((AE_INFO, "Invalid BitRegister ID: 0x%X", register_id)); @@ -337,6 +346,11 @@ acpi_status acpi_hw_write_pm1_control(u32 pm1a_control, u32 pm1b_control) ACPI_FUNCTION_TRACE(hw_write_pm1_control); + /* If Hardware Reduced flag is set, there are no PM Control registers */ + if (acpi_gbl_reduced_hardware) { + return_ACPI_STATUS(AE_NOT_IMPLEMENTED); + } + status = acpi_hw_write(pm1a_control, &acpi_gbl_FADT.xpm1a_control_block); if (ACPI_FAILURE(status)) { @@ -370,6 +384,11 @@ acpi_status acpi_hw_register_read(u32 register_id, u32 *return_value) ACPI_FUNCTION_TRACE(hw_register_read); + /* If Hardware Reduced flag is set, there are no PM Control registers */ + if (acpi_gbl_reduced_hardware) { + return_ACPI_STATUS(AE_NOT_IMPLEMENTED); + } + switch (register_id) { case ACPI_REGISTER_PM1_STATUS: /* PM1 A/B: 16-bit access each */ @@ -465,6 +484,11 @@ acpi_status acpi_hw_register_write(u32 register_id, u32 value) ACPI_FUNCTION_TRACE(hw_register_write); + /* If Hardware Reduced flag is set, there are no PM Control registers */ + if (acpi_gbl_reduced_hardware) { + return_ACPI_STATUS(AE_NOT_IMPLEMENTED); + } + switch (register_id) { case ACPI_REGISTER_PM1_STATUS: /* PM1 A/B: 16-bit access each */ /* -- 1.7.9.5

11 years, 8 months

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Standup notes 12.09.2013

by Tomasz Nowicki

Hi, Update from my side: - have got invitation letter to US Connect - run ACPI kernel on RTSMv8 model, environment preparation - now working on converting PMU driver to ACPI Tomasz

11 years, 8 months

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[PATCH] ARM: dts: Correct typo in use of samsung, pin-drv for exynos5250

by al.stone＠linaro.org

From: Al Stone <ahs3(a)redhat.com> Corrects an obvious typo in the Arndale pinctrl descriptions in DT. The samsung-pinctrl driver uses the correct name. Signed-off-by: Al Stone <al.stone(a)linaro.org> --- arch/arm/boot/dts/exynos5250-pinctrl.dtsi | 44 +++++++++++++++---------------- 1 file changed, 22 insertions(+), 22 deletions(-) diff --git a/arch/arm/boot/dts/exynos5250-pinctrl.dtsi b/arch/arm/boot/dts/exynos5250-pinctrl.dtsi index 656e381..031e198 100644 --- a/arch/arm/boot/dts/exynos5250-pinctrl.dtsi +++ b/arch/arm/boot/dts/exynos5250-pinctrl.dtsi @@ -210,21 +210,21 @@ samsung,pins = "gpa0-2", "gpa0-3"; samsung,pin-function = <2>; samsung,pin-pud = <0>; - samaung,pin-drv = <0>; + samsung,pin-drv = <0>; }; i2c2_bus: i2c2-bus { samsung,pins = "gpa0-6", "gpa0-7"; samsung,pin-function = <3>; samsung,pin-pud = <3>; - samaung,pin-drv = <0>; + samsung,pin-drv = <0>; }; i2c2_hs_bus: i2c2-hs-bus { samsung,pins = "gpa0-6", "gpa0-7"; samsung,pin-function = <4>; samsung,pin-pud = <3>; - samaung,pin-drv = <0>; + samsung,pin-drv = <0>; }; uart2_data: uart2-data { @@ -238,21 +238,21 @@ samsung,pins = "gpa1-2", "gpa1-3"; samsung,pin-function = <2>; samsung,pin-pud = <0>; - samaung,pin-drv = <0>; + samsung,pin-drv = <0>; }; i2c3_bus: i2c3-bus { samsung,pins = "gpa1-2", "gpa1-3"; samsung,pin-function = <3>; samsung,pin-pud = <3>; - samaung,pin-drv = <0>; + samsung,pin-drv = <0>; }; i2c3_hs_bus: i2c3-hs-bus { samsung,pins = "gpa1-2", "gpa1-3"; samsung,pin-function = <4>; samsung,pin-pud = <3>; - samaung,pin-drv = <0>; + samsung,pin-drv = <0>; }; uart3_data: uart3-data { @@ -273,14 +273,14 @@ samsung,pins = "gpa2-0", "gpa2-1"; samsung,pin-function = <3>; samsung,pin-pud = <3>; - samaung,pin-drv = <0>; + samsung,pin-drv = <0>; }; i2c5_bus: i2c5-bus { samsung,pins = "gpa2-2", "gpa2-3"; samsung,pin-function = <3>; samsung,pin-pud = <3>; - samaung,pin-drv = <0>; + samsung,pin-drv = <0>; }; spi1_bus: spi1-bus { @@ -376,14 +376,14 @@ samsung,pins = "gpb3-0", "gpb3-1"; samsung,pin-function = <4>; samsung,pin-pud = <3>; - samaung,pin-drv = <0>; + samsung,pin-drv = <0>; }; i2c1_hs_bus: i2c1-hs-bus { samsung,pins = "gpb3-2", "gpb3-3"; samsung,pin-function = <4>; samsung,pin-pud = <3>; - samaung,pin-drv = <0>; + samsung,pin-drv = <0>; }; sd0_clk: sd0-clk { @@ -551,14 +551,14 @@ samsung,pins = "gpd0-2", "gpd0-3"; samsung,pin-function = <2>; samsung,pin-pud = <0>; - samaung,pin-drv = <0>; + samsung,pin-drv = <0>; }; dp_hpd: dp_hpd { samsung,pins = "gpx0-7"; samsung,pin-function = <3>; samsung,pin-pud = <0>; - samaung,pin-drv = <0>; + samsung,pin-drv = <0>; }; }; @@ -650,42 +650,42 @@ "gpf1-0", "gpf1-1", "gpf1-2", "gpf1-3"; samsung,pin-function = <3>; samsung,pin-pud = <0>; - samaung,pin-drv = <0>; + samsung,pin-drv = <0>; }; cam_i2c2_bus: cam-i2c2-bus { samsung,pins = "gpe0-6", "gpe1-0"; samsung,pin-function = <4>; samsung,pin-pud = <3>; - samaung,pin-drv = <0>; + samsung,pin-drv = <0>; }; cam_spi1_bus: cam-spi1-bus { samsung,pins = "gpe0-4", "gpe0-5", "gpf0-2", "gpf0-3"; samsung,pin-function = <4>; samsung,pin-pud = <0>; - samaung,pin-drv = <0>; + samsung,pin-drv = <0>; }; cam_i2c1_bus: cam-i2c1-bus { samsung,pins = "gpf0-2", "gpf0-3"; samsung,pin-function = <2>; samsung,pin-pud = <3>; - samaung,pin-drv = <0>; + samsung,pin-drv = <0>; }; cam_i2c0_bus: cam-i2c0-bus { samsung,pins = "gpf0-0", "gpf0-1"; samsung,pin-function = <2>; samsung,pin-pud = <3>; - samaung,pin-drv = <0>; + samsung,pin-drv = <0>; }; cam_spi0_bus: cam-spi0-bus { samsung,pins = "gpf1-0", "gpf1-1", "gpf1-2", "gpf1-3"; samsung,pin-function = <2>; samsung,pin-pud = <0>; - samaung,pin-drv = <0>; + samsung,pin-drv = <0>; }; cam_bayrgb_bus: cam-bayrgb-bus { @@ -696,7 +696,7 @@ "gpg2-0", "gpg2-1"; samsung,pin-function = <2>; samsung,pin-pud = <0>; - samaung,pin-drv = <0>; + samsung,pin-drv = <0>; }; cam_port_a: cam-port-a { @@ -705,7 +705,7 @@ "gph1-4", "gph1-5", "gph1-6", "gph1-7"; samsung,pin-function = <2>; samsung,pin-pud = <0>; - samaung,pin-drv = <0>; + samsung,pin-drv = <0>; }; }; @@ -757,7 +757,7 @@ "gpv1-4", "gpv1-5", "gpv1-6", "gpv1-7"; samsung,pin-function = <2>; samsung,pin-pud = <0>; - samaung,pin-drv = <0>; + samsung,pin-drv = <0>; }; c2c_txd: c2c-txd { @@ -767,7 +767,7 @@ "gpv3-4", "gpv3-5", "gpv3-6", "gpv3-7"; samsung,pin-function = <2>; samsung,pin-pud = <0>; - samaung,pin-drv = <0>; + samsung,pin-drv = <0>; }; }; -- 1.8.3.1

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[PATCH 0/3] Convert v2m_sysreg into ACPI tables

by naresh.bhat＠linaro.org

From: Naresh Bhat <naresh.bhat(a)linaro.org> The patch set will add ACPI probing for v2m_sysreg and allocate a LINA0006 platform ID. Also remove the defination under foundation-v8-acpi.dts file. Naresh Bhat (3): v2m_sysreg: Add ACPI probing ACPI: Allocate platform ID for v2m_sysreg arm64: dts: Remove v2m_sysreg binding arch/arm64/boot/dts/foundation-v8-acpi.dts | 6 +++++- drivers/acpi/acpi_platform.c | 1 + drivers/mfd/vexpress-sysreg.c | 12 ++++++++++++ 3 files changed, 18 insertions(+), 1 deletion(-) -- 1.7.9.5

11 years, 8 months

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[PATCH] ASL/foundation-v8: Add v2m_sysreg

by naresh.bhat＠linaro.org

From: Naresh Bhat <naresh.bhat(a)linaro.org> Add v2m_sysreg and allocate LINA0006 as platform ID. Signed-off-by: Naresh Bhat <naresh.bhat(a)linaro.org> --- platforms/foundation-v8.acpi/dsdt.asl | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/platforms/foundation-v8.acpi/dsdt.asl b/platforms/foundation-v8.acpi/dsdt.asl index 89459ec..0f3626f 100644 --- a/platforms/foundation-v8.acpi/dsdt.asl +++ b/platforms/foundation-v8.acpi/dsdt.asl @@ -244,5 +244,17 @@ DefinitionBlock ( Return (RBUF) } } + + Device (SREG) { + Name (_HID, "LINA0006") + Name (_UID, 0) + + Method (_CRS, 0x0, Serialized) { + Name (RBUF, ResourceTemplate() { + Memory32Fixed (ReadWrite, 0x1c010000, 0x1000) + }) + Return (RBUF) + } + } } } -- 1.7.9.5

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[PATCH 0/2] Add tool to enable APEI tables test, other minor changes.

by Tomasz Nowicki

Patch set implement as follows: 1. Minor changes around existing tools - reorganize building process, - move common code to separate direction. 2. Add BFAPEI (Blob For APEI) tool which can create blobs for APEI testing. - see commit log for more details Tomasz Nowicki (2): map, cab: Reorganize building process and tree hierarchy. bfapei: Add tool that can create blobs for APEI table testing. Makefile | 28 +- platforms/Makefile | 7 +- tools/bfapei/Makefile | 11 + tools/bfapei/bfapei.c | 271 ++++++++++++++++++++ tools/bfapei/bfapei.h | 235 +++++++++++++++++ tools/cab/Makefile | 12 +- tools/cab/cab.c | 527 +------------------------------------- tools/cab/cab.h | 149 ----------- tools/common/Makefile | 4 + tools/common/build_aml.c | 455 ++++++++++++++++++++++++++++++++ tools/common/check_aml.c | 512 ++++++++++++++++++++++++++++++++++++ tools/common/include/build_aml.h | 74 ++++++ tools/common/include/check_aml.h | 99 +++++++ tools/mab/Makefile | 13 +- tools/mab/mab.c | 430 +------------------------------ tools/mab/mab.h | 77 ------ 16 files changed, 1712 insertions(+), 1192 deletions(-) create mode 100644 tools/bfapei/Makefile create mode 100644 tools/bfapei/bfapei.c create mode 100644 tools/bfapei/bfapei.h create mode 100644 tools/common/Makefile create mode 100644 tools/common/build_aml.c create mode 100644 tools/common/check_aml.c create mode 100644 tools/common/include/build_aml.h create mode 100644 tools/common/include/check_aml.h -- 1.7.9.5

11 years, 8 months

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[PATCH 0/6] Set up APEI tables

by Tomasz Nowicki

Values set within all APEI tables have no hardware meaning and are valid combining with kernel hacks. These changes allow only to confirm that APEI tables (HEST, ERST, BERT) are supported by kernel and no issues were observed on arm/arm64 architectures. Tomasz Nowicki (6): acpi, apei, ghes: Enable APEI firmware first mode by APEI bit. acpi, apei, hed: Add Hardware Error Device (HED) to SB bus. acpi, apei, einj: Fill ACPI tables to enable EINJ driver. acpi, apei: Fix EINJ and HEST tables. acpi, apei, bert: Point to the same error block status memory region as HEST points. acpi, apei, erst: Point to region where we can pretend registers, persistent sotrage. platforms/exynos5250-arndale.acpi/bert.asl | 4 +- platforms/exynos5250-arndale.acpi/dsdt.asl | 27 +++++ platforms/exynos5250-arndale.acpi/einj.asl | 2 +- platforms/exynos5250-arndale.acpi/erst.asl | 34 +++---- platforms/exynos5250-arndale.acpi/hest.asl | 148 +--------------------------- platforms/foundation-v8.acpi/bert.asl | 4 +- platforms/foundation-v8.acpi/dsdt.asl | 27 +++++ platforms/foundation-v8.acpi/einj.asl | 2 +- platforms/foundation-v8.acpi/erst.asl | 34 +++---- platforms/foundation-v8.acpi/hest.asl | 148 +--------------------------- 10 files changed, 98 insertions(+), 332 deletions(-) -- 1.7.9.5

11 years, 8 months

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[PATCH 0/6 v2] First of the Arndale GPIO/pinctrl patches

by al.stone＠linaro.org

From: Al Stone <ahs3(a)redhat.com> I should have sent these out for comment much sooner. Once these are in good shape, the next steps are to send patches for verifying that the pinconf code is working properly, connecting up the GPIO interrupts using ACPI, and then conversion of all of the pin controllers for Arndale (this patch converts one of four). This patch puts most of the infrastructure in place so that in the 3.11 kernel the Arndale pin controllers can be converted from FDT to ACPI. The changes in ASL are included in a separate patch. What this allows is for the pin controllers to be described in either FDT or ACPI for Arndale and -- in conjunction with the ASL changes -- shows how to describe a Samsung controller in ACPI. Changes for v2: -- Add patch 6 which allows compilation regardless of whether CONFIG_ACPI is used or not Al Stone (6): ACPI: ARM: arndale: remove GPZ GPIO definition from DT so it can be in ACPI ACPI: ARM: arndale: whitelist the samsung-pinctrl driver for ACPI ACPI: make an error message a little clearer ACPI: improve acpi_extract_package() utility ACPI: ARM: arndale: enable ACPI in the Samsung pinctrl driver ACPI: ARM: arndale: add CONFIG_ACPI ifdef's to pinctrl driver arch/arm/boot/dts/exynos5250-pinctrl.dtsi | 2 + arch/arm/boot/dts/exynos5250.dtsi | 6 +- drivers/acpi/acpi_platform.c | 3 + drivers/acpi/osl.c | 2 +- drivers/acpi/utils.c | 17 +- drivers/pinctrl/pinctrl-samsung.c | 517 +++++++++++++++++++++++++++++- drivers/pinctrl/pinctrl-samsung.h | 3 + 7 files changed, 536 insertions(+), 14 deletions(-) -- 1.8.3.1

11 years, 8 months

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[PATCH] net: smc91x missing ; in acpi match section

by Graeme Gregory

Makes compile fail when a module. Signed-off-by: Graeme Gregory <graeme.gregory(a)linaro.org> --- drivers/net/ethernet/smsc/smc91x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c index b181377..288a090 100644 --- a/drivers/net/ethernet/smsc/smc91x.c +++ b/drivers/net/ethernet/smsc/smc91x.c @@ -2393,7 +2393,7 @@ static const struct acpi_device_id smc91x_acpi_match[] = { { "LINA0003", }, { } }; -MODULE_DEVICE_TABLE(acpi, smc91x_acpi_match) +MODULE_DEVICE_TABLE(acpi, smc91x_acpi_match); #endif static struct dev_pm_ops smc_drv_pm_ops = { -- 1.8.3.1

11 years, 8 months

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[PATCH 1/1] Add APEI blob handling.

by Tomasz Nowicki

APEI blob is created based on existing ACPI tables and allow kernel to use it as APEI specific registers, hardware behaviour simulation etc. This is the same method used on armv7 prototype. Signed-off-by: Tomasz Nowicki <tomasz.nowicki(a)linaro.org> --- Makefile | 11 +++++++++-- model.lds.S | 12 +++++++++++- 2 files changed, 20 insertions(+), 3 deletions(-) diff --git a/Makefile b/Makefile index 412ab45..df3ff75 100644 --- a/Makefile +++ b/Makefile @@ -16,7 +16,8 @@ CNTFRQ := 0x01800000 # 24Mhz #INITRD_FLAGS := -DUSE_INITRD ACPI_FLAGS := -DUSE_ACPI -CPPFLAGS += $(INITRD_FLAGS) $(ACPI_FLAGS) +APEI_FLAGS := -DUSE_APEI +CPPFLAGS += $(INITRD_FLAGS) $(ACPI_FLAGS) $(APEI_FLAGS) BOOTLOADER := boot.S MBOX_OFFSET := 0xfff8 @@ -37,6 +38,12 @@ ACPI_START := $(shell echo $$(($(PHYS_OFFSET) + $(ACPI_OFFSET)))) ACPI_SIZE := $(shell stat -Lc %s $(ACPI) 2>/dev/null || echo 0) ACPI_END := $(shell echo $$(($(ACPI_START) + $(ACPI_SIZE)))) +APEI := apei.acpi +APEI_OFFSET := 0x7fff0000 +APEI_START := $(shell echo $$(($(PHYS_OFFSET) + $(APEI_OFFSET)))) +APEI_SIZE := $(shell stat -Lc %s $(APEI) 2>/dev/null || echo 0) +APEI_END := $(shell echo $$(($(APEI_START) + $(APEI_SIZE)))) + FDT_SRC := rtsm_ve-aemv8a.dts FDT_INCL_REGEX := $/include/[[:space:]]*"$$[^"]\+$$".*$ FDT_DEPS := $(FDT_SRC) $(addprefix $(dir $(FDT_SRC)), $(shell sed -ne 'sq$(strip $(FDT_INCL_REGEX)q\2q p' < $(FDT_SRC)))) @@ -86,7 +93,7 @@ boot.o: $(BOOTLOADER) Makefile $(CC) $(CPPFLAGS) -DCNTFRQ=$(CNTFRQ) -DUART_BASE=$(UART_BASE) -DSYSREGS_BASE=$(SYSREGS_BASE) -DGIC_DIST_BASE=$(GIC_DIST_BASE) -DGIC_CPU_BASE=$(GIC_CPU_BASE) -c -o $@ $(BOOTLOADER) model.lds: $(LD_SCRIPT) Makefile - $(CC) $(CPPFLAGS) -DPHYS_OFFSET=$(PHYS_OFFSET) -DMBOX_OFFSET=$(MBOX_OFFSET) -DKERNEL_OFFSET=$(KERNEL_OFFSET) -DFDT_OFFSET=$(FDT_OFFSET) -DFS_OFFSET=$(FS_OFFSET) -DKERNEL=$(KERNEL) -DFILESYSTEM=$(FILESYSTEM) -DACPI=$(ACPI) -DACPI_OFFSET=$(ACPI_OFFSET) -E -P -C -o $@ $< + $(CC) $(CPPFLAGS) -DPHYS_OFFSET=$(PHYS_OFFSET) -DMBOX_OFFSET=$(MBOX_OFFSET) -DKERNEL_OFFSET=$(KERNEL_OFFSET) -DFDT_OFFSET=$(FDT_OFFSET) -DFS_OFFSET=$(FS_OFFSET) -DKERNEL=$(KERNEL) -DFILESYSTEM=$(FILESYSTEM) -DACPI=$(ACPI) -DACPI_OFFSET=$(ACPI_OFFSET) -DAPEI=$(APEI) -DAPEI_OFFSET=$(APEI_OFFSET) -E -P -C -o $@ $< ifeq ($(DTC),) $(error No dtc found! You can git clone from git://git.jdl.com/software/dtc.git) diff --git a/model.lds.S b/model.lds.S index f8d4683..4bbad07 100644 --- a/model.lds.S +++ b/model.lds.S @@ -17,6 +17,10 @@ INPUT(./fdt.dtb) #ifdef USE_ACPI INPUT(ACPI) + +#ifdef USE_APEI +INPUT(APEI) +#endif #endif #ifdef USE_INITRD @@ -37,10 +41,16 @@ SECTIONS . = PHYS_OFFSET + FDT_OFFSET; dtb = .; .dtb : { ./fdt.dtb } +#ifdef USE_ACPI . = PHYS_OFFSET + ACPI_OFFSET; acpi = .; -#ifdef USE_ACPI .acpi : { ACPI } + +#ifdef USE_APEI + . = PHYS_OFFSET + APEI_OFFSET; + apei = .; + .apei : { APEI } +#endif #endif . = PHYS_OFFSET + FS_OFFSET; filesystem = .; -- 1.7.9.5

11 years, 8 months

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[PATCH v2] ASL / ARMv8 foudation model: Fix cpu hot add failure on ARM64

by Hanjun Guo

All values in the ACPI blob are little-endian, but I creat the DSDT table with values in big-endian format, so when I evaluate _MAT object I will get values unexperted, this leads to cpu hot add failure, fix it. v1 -> v2: No functional change, just change the title for better readability. Signed-off-by: Hanjun Guo <hanjun.guo(a)linaro.org> --- platforms/foundation-v8.acpi/dsdt.asl | 27 ++++++++++++++------------- 1 file changed, 14 insertions(+), 13 deletions(-) diff --git a/platforms/foundation-v8.acpi/dsdt.asl b/platforms/foundation-v8.acpi/dsdt.asl index d1a9716..9c128d3 100644 --- a/platforms/foundation-v8.acpi/dsdt.asl +++ b/platforms/foundation-v8.acpi/dsdt.asl @@ -38,8 +38,9 @@ DefinitionBlock ( Name (MAT0, Buffer (0x28) { + /* Be careful, little-endian here */ /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* type, len, reserved, gic_id */ - /* 0008 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, /* uid, flags */ + /* 0008 */ 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, /* uid, flags */ /* 0010 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* parking_version, performance_interrupt */ /* 0018 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* parked_address */ /* 0020 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 /* base_address */ @@ -88,8 +89,8 @@ DefinitionBlock ( Name (MAT0, Buffer (0x28) { - /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, - /* 0008 */ 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, + /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, + /* 0008 */ 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, /* 0010 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0018 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0020 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 @@ -97,8 +98,8 @@ DefinitionBlock ( Name (MAT1, Buffer (0x28) { - /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, - /* 0008 */ 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, + /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, + /* 0008 */ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0010 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0018 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0020 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 @@ -138,8 +139,8 @@ DefinitionBlock ( Name (MAT0, Buffer (0x28) { - /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, - /* 0008 */ 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x01, + /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, + /* 0008 */ 0x02, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, /* 0010 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0018 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0020 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 @@ -147,8 +148,8 @@ DefinitionBlock ( Name (MAT1, Buffer (0x28) { - /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, - /* 0008 */ 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, + /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, + /* 0008 */ 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0010 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0018 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0020 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 @@ -188,8 +189,8 @@ DefinitionBlock ( Name (MAT0, Buffer (0x28) { - /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, - /* 0008 */ 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x01, + /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, + /* 0008 */ 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, /* 0010 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0018 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0020 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 @@ -197,8 +198,8 @@ DefinitionBlock ( Name (MAT1, Buffer (0x28) { - /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, - /* 0008 */ 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, + /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, + /* 0008 */ 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0010 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0018 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0020 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 -- 1.7.9.5

11 years, 8 months

3
2
0 0

[PATCH part1 00/10] ARM64 / ACPI: CPU hotplug support

by Hanjun Guo

This patch set is the kernel part of code for cpu hotplug. I got a patch in upstream but not accepted by mainline, this patch emulate an ACPI SCI interrupt to emulate a hot-plug event. Useful for testing ACPI based hot-plug on systems that don't have the necessary firmware support. With this patch, I can test the hot-add and hot-remove repeatly. This patch set is intended to close the cpu hotplug related cards in JIRA, just for review purpose, *should not* pushed to our linaro acpi. I have created an acpi-hotplug-next branch in our git tree for these patches. This patch set includes 3 parts, the forst part is the kernel code, and the second is the ASL code fix, the third part is the boot wrapper. Hanjun Guo (4): Revert "ARM64 / CPU hot-plug: Skeleton logic cpu online/offline for cpu hot-plug" ACPI: Enable SCI_EMULATE to manually simulate physical hotplug testing arm / ACPI: Remove __cpuinit and fix __init attribute location arm: fix cpu hot add failure Mark Rutland (6): arm64: reorganise smp_enable_ops arm64: factor out spin-table boot method arm64: read enable-method for CPU0 arm64: add CPU_HOTPLUG infrastructure arm64: add PSCI CPU_OFF-based hotplug support HACK: arm64: dts: foundation: add PSCI data arch/arm64/Kconfig | 2 +- arch/arm64/boot/dts/foundation-v8.dts | 19 +-- arch/arm64/include/asm/irq.h | 1 + arch/arm64/include/asm/smp.h | 46 +++++-- arch/arm64/kernel/cputable.c | 2 +- arch/arm64/kernel/head.S | 12 +- arch/arm64/kernel/irq.c | 61 +++++++++ arch/arm64/kernel/process.c | 7 ++ arch/arm64/kernel/smp.c | 222 ++++++++++++++++++--------------- arch/arm64/kernel/smp_psci.c | 54 ++++++-- arch/arm64/kernel/smp_spin_table.c | 85 ++++++++++++- arch/arm64/kernel/vmlinux.lds.S | 1 - drivers/acpi/Kconfig | 10 ++ drivers/acpi/Makefile | 1 + drivers/acpi/plat/arm/boot.c | 20 +-- drivers/acpi/sci_emu.c | 145 +++++++++++++++++++++ 16 files changed, 538 insertions(+), 150 deletions(-) create mode 100644 drivers/acpi/sci_emu.c -- 1.7.9.5

11 years, 8 months

2
13
0 0

[PATCH 0/3 v3][acpi-asl] Convert 3 of 4 Arndale GPIO controllers

by al.stone＠linaro.org

From: Al Stone <ahs3(a)redhat.com> The first two patches in this series have been submitted before; this series just combines all of the Arndale GPIO changes so far. The last of the three converts yet another GPIO device to ACPI. All that remains is to convert the final controller. To make that work, the GIC and GIC combiner will need to work first and that I'm still investigating. Al Stone (3): ACPI: ARM: arndale: move definition of GPZ GPIO from DT to ACPI ACPI: ARM: arndale: convert GPIO controller 3 of 4 to ACPI ACPI: ARM: arndale: convert GPIO controller 2 of 4 to ACPI platforms/exynos5250-arndale.acpi/ssdt0.asl | 554 +++++++++++++++++++++++++++- 1 file changed, 553 insertions(+), 1 deletion(-) -- 1.8.3.1

11 years, 8 months

1
3
0 0

CSRT table can be used to describe DMA on SoC

by Hanjun Guo

Hi everyone, I read the wiki about ACPI Table Prioritization: https://wiki.linaro.org/LEG/Engineering/Kernel/ACPI/TablePriorities and I noticed that CSRT is in the *Never Tables* priority, here I got some different opinions. Yes, CSRT or Core System Resources Table is a proprietary ACPI table introduced by Microsoft, but This table can contain devices that are not in the system DSDT table. In particular DMA controllers, Timer, interrupt might be described here. we can get DMA description from DMAR (DMA Remapping Table) tables on Intel platform, but on ARM SoCs, there is no table to describe DMA, only CSRT is available. Actually, the support code of CSRT in Linux kernel already have submitted by Intel on Jan 17 this year, but only DMA is supported, still have something more to do (if needed). So, why not use the CSRT table to describe DMA? Thanks Hanjun

11 years, 8 months

3
5
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[PATCH v2 0/6] Remove the duplicated _MAT evaluation and simplify _acpi_map_lsapic()

by Hanjun Guo

v1->v2: Return specific error value instead of just return -1, and correct some grammar mistake in changelog. For cpu hot add, evaluate _MAT or parse MADT will did twice to get APIC id: acpi_processor_add() acpi_processor_get_info() acpi_get_cpuid() will evaluate _MAT or parse MADT; acpi_processor_hotadd_init() acpi_map_lsapic() will evaluate _MAT again; This patch set introduces apic_id in struct processor to save parsed APIC id, and use it to remove the duplicated _MAT evaluation. Further more, the new logical cpu number will be generated in acpi_register_lapic(), this can be returned to remove the cpumask allocation and operation to simplify _acpi_map_lsapic(). There are also some cleanups for the ACPI processor dirver code. Hanjun Guo (2): ACPI / processor: remove unnecessary if (!pr) check ACPI / processor: Remove outdated comments Jiang Liu (4): ACPI / processor: Introduce apic_id in struct processor to save parsed APIC id ACPI / processor: use apic_id and remove duplicated _MAT evaluation x86 / ACPI: simplify _acpi_map_lsapic() ACPI / processor: remove some dead code in acpi_processor_get_info() arch/ia64/kernel/acpi.c | 38 ++---------------- arch/x86/include/asm/mpspec.h | 2 +- arch/x86/kernel/acpi/boot.c | 88 +++++++++-------------------------------- arch/x86/kernel/apic/apic.c | 8 ++-- drivers/acpi/acpi_processor.c | 22 +++-------- drivers/acpi/processor_core.c | 26 +++++++++--- include/acpi/processor.h | 3 ++ include/linux/acpi.h | 2 +- 8 files changed, 60 insertions(+), 129 deletions(-) -- 1.7.9.5

11 years, 8 months

2
7
0 0

[PATCH part2] ASL / ARMv8 foudation model: Fix cpu hot add failure on ARM64

by Hanjun Guo

All values in the ACPI blob are little-endian, but I creat the DSDT table with values in big-endian format, so when I evaluate _MAT object I will get values unexperted, this leads to cpu hot add failure, fix it. v1 -> v2: No functional change, just change the title for better readability. Signed-off-by: Hanjun Guo <hanjun.guo(a)linaro.org> --- platforms/foundation-v8.acpi/dsdt.asl | 27 ++++++++++++++------------- 1 file changed, 14 insertions(+), 13 deletions(-) diff --git a/platforms/foundation-v8.acpi/dsdt.asl b/platforms/foundation-v8.acpi/dsdt.asl index d1a9716..9c128d3 100644 --- a/platforms/foundation-v8.acpi/dsdt.asl +++ b/platforms/foundation-v8.acpi/dsdt.asl @@ -38,8 +38,9 @@ DefinitionBlock ( Name (MAT0, Buffer (0x28) { + /* Be careful, little-endian here */ /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* type, len, reserved, gic_id */ - /* 0008 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, /* uid, flags */ + /* 0008 */ 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, /* uid, flags */ /* 0010 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* parking_version, performance_interrupt */ /* 0018 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* parked_address */ /* 0020 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 /* base_address */ @@ -88,8 +89,8 @@ DefinitionBlock ( Name (MAT0, Buffer (0x28) { - /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, - /* 0008 */ 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, + /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, + /* 0008 */ 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, /* 0010 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0018 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0020 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 @@ -97,8 +98,8 @@ DefinitionBlock ( Name (MAT1, Buffer (0x28) { - /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, - /* 0008 */ 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, + /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, + /* 0008 */ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0010 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0018 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0020 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 @@ -138,8 +139,8 @@ DefinitionBlock ( Name (MAT0, Buffer (0x28) { - /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, - /* 0008 */ 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x01, + /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, + /* 0008 */ 0x02, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, /* 0010 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0018 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0020 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 @@ -147,8 +148,8 @@ DefinitionBlock ( Name (MAT1, Buffer (0x28) { - /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, - /* 0008 */ 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, + /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, + /* 0008 */ 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0010 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0018 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0020 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 @@ -188,8 +189,8 @@ DefinitionBlock ( Name (MAT0, Buffer (0x28) { - /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, - /* 0008 */ 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x01, + /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, + /* 0008 */ 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, /* 0010 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0018 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0020 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 @@ -197,8 +198,8 @@ DefinitionBlock ( Name (MAT1, Buffer (0x28) { - /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, - /* 0008 */ 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, + /* 0000 */ 0x0B, 0x28, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, + /* 0008 */ 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0010 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0018 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0020 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 -- 1.7.9.5

11 years, 8 months

1
0
0 0

[PATCH 1/6] ACPI / processor: Introduce apic_id in struct processor to save parsed APIC id

by Hanjun Guo

From: Jiang Liu <jiang.liu(a)huawei.com> For cpu hot add, we evaluate _MAT or parse MADT twice to get APIC id, here is the code logic: acpi_processor_add() acpi_processor_get_info() acpi_get_cpuid() will evaluate _MAT or parse MADT; acpi_processor_hotadd_init() acpi_map_lsapic() will evaluate _MAT again; This can be done more effectively, this patch introduces apic_id in struct processor to save parsed APIC id, and then we can use it and remove the duplicated _MAT evaluation. Signed-off-by: Jiang Liu <jiang.liu(a)huawei.com> Signed-off-by: Hanjun Guo <hanjun.guo(a)linaro.org> --- drivers/acpi/acpi_processor.c | 3 ++- drivers/acpi/processor_core.c | 26 +++++++++++++++++++++----- include/acpi/processor.h | 3 +++ 3 files changed, 26 insertions(+), 6 deletions(-) diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c index f29e06e..d5a6c81 100644 --- a/drivers/acpi/acpi_processor.c +++ b/drivers/acpi/acpi_processor.c @@ -270,7 +270,8 @@ static int acpi_processor_get_info(struct acpi_device *device) device_declaration = 1; pr->acpi_id = value; } - cpu_index = acpi_get_cpuid(pr->handle, device_declaration, pr->acpi_id); + pr->apic_id = acpi_get_apicid(pr->handle, device_declaration, pr->acpi_id); + cpu_index = acpi_map_cpuid(pr->apic_id, pr->acpi_id); /* Handle UP system running SMP kernel, with no LAPIC in MADT */ if (!cpu0_initialized && (cpu_index == -1) && diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index cf34d90..b3171f3 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -162,16 +162,23 @@ exit: return apic_id; } -int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id) +int acpi_get_apicid(acpi_handle handle, int type, u32 acpi_id) { -#ifdef CONFIG_SMP - int i; -#endif - int apic_id = -1; + int apic_id; apic_id = map_mat_entry(handle, type, acpi_id); if (apic_id == -1) apic_id = map_madt_entry(type, acpi_id); + + return apic_id; +} + +int acpi_map_cpuid(int apic_id, u32 acpi_id) +{ +#ifdef CONFIG_SMP + int i; +#endif + if (apic_id == -1) { /* * On UP processor, there is no _MAT or MADT table. @@ -211,6 +218,15 @@ int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id) #endif return -1; } + +int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id) +{ + int apic_id; + + apic_id = acpi_get_apicid(handle, type, acpi_id); + + return acpi_map_cpuid(apic_id, acpi_id); +} EXPORT_SYMBOL_GPL(acpi_get_cpuid); static bool __init processor_physically_present(acpi_handle handle) diff --git a/include/acpi/processor.h b/include/acpi/processor.h index 66096d0..7816e45 100644 --- a/include/acpi/processor.h +++ b/include/acpi/processor.h @@ -199,6 +199,7 @@ struct acpi_processor_flags { struct acpi_processor { acpi_handle handle; u32 acpi_id; + u32 apic_id; u32 id; u32 pblk; int performance_platform_limit; @@ -314,6 +315,8 @@ static inline int acpi_processor_get_bios_limit(int cpu, unsigned int *limit) /* in processor_core.c */ void acpi_processor_set_pdc(acpi_handle handle); +int acpi_get_apicid(acpi_handle, int type, u32 acpi_id); +int acpi_map_cpuid(int apic_id, u32 acpi_id); int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id); /* in processor_throttling.c */ -- 1.7.9.5

11 years, 8 months

2
7
0 0

[PATCH 0/2] Enable a second GPIO controller on Arndale

by al.stone＠linaro.org

From: Al Stone <ahs3(a)redhat.com> This adds another GPIO/pinctrl device to Arndale. In the process, logic errors in the portions of the Samsung pinctrl driver that were using ACPI were weeded out. Al Stone (2): ACPI: ARM: arndale: move GPIO controller 3 of 4 from FDT to ACPI ACPI: ARM: arndale: Enable pinctrl for configuring many controllers via ACPI arch/arm/boot/dts/exynos5250-arndale.dts | 26 +++++++++++++++ arch/arm/boot/dts/exynos5250-pinctrl.dtsi | 2 +- arch/arm/boot/dts/exynos5250.dtsi | 6 ++-- drivers/pinctrl/pinctrl-samsung.c | 53 ++++++++++++++++--------------- 4 files changed, 59 insertions(+), 28 deletions(-) -- 1.8.3.1

11 years, 8 months

3
5
0 0

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