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[PATCH v13] acpi, apei, arm64: APEI initial support for aarch64.

by fu.wei＠linaro.org

From: Tomasz Nowicki <tomasz.nowicki(a)linaro.org> This patch provides APEI arch-specific bits for aarch64 Meanwhile, (1)add a new subfunction "hest_ia32_init" for "acpi_disable_cmcff" which is used by IA-32 Architecture Corrected Machine Check (CMC). (2)move HEST type (ACPI_HEST_TYPE_IA32_CORRECTED_CHECK) checking to a generic place. (3)select HAVE_ACPI_APEI when EFI and ACPI is set on ARM64, because arch_apei_get_mem_attribute is using efi_mem_attributes on ARM64. [Fu Wei: improve && upstream] Signed-off-by: Tomasz Nowicki <tomasz.nowicki(a)linaro.org> Tested-by: Jonathan (Zhixiong) Zhang <zjzhang(a)codeaurora.org> Signed-off-by: Fu Wei <fu.wei(a)linaro.org> Acked-by: Hanjun Guo <hanjun.guo(a)linaro.org> Tested-by: Tyler Baicar <tbaicar(a)codeaurora.org> Acked-by: Will Deacon <will.deacon(a)arm.com> --- Changelog: v13:https://lkml.org/lkml/2016/8/10/ Fix a comment problem(add a "end"). Add a comment for the definition of acpi_disable_cmcff. Rebase to 4.8.0-rc1-g372734a v12:https://lkml.org/lkml/2016/7/29/97 Fix a comment problem(redundant "with"). Rebase to 4.7.0-g680eee2. v11:https://lkml.org/lkml/2016/7/27/427 Rebase to v4.7-0e06f5c0. v10:https://lkml.org/lkml/2016/4/14 Fix the Alphabetical order problem in arch/arm64/Kconfig. v9: https://lkml.org/lkml/2016/4/5/522 Improve the comment for arch_apei_flush_tlb_one. Using select "HAVE_ACPI_APEI if (ACPI && EFI)" to fix the EFI dependence problem. v8: https://lkml.org/lkml/2016/3/29/132 Fix a "undefined reference" bug by selecting EFI when ACPI_APEI is set on ARM64. v7: https://lkml.org/lkml/2016/3/17/183 Add comment for arch_apei_flush_tlb_one in arch/arm64/include/asm/acpi.h. v6: https://lists.linaro.org/pipermail/linaro-acpi/2016-March/006644.html Move HEST type (ACPI_HEST_TYPE_IA32_CORRECTED_CHECK) checking to a generic place. Delete HAVE_ACPI_APEI_HEST_IA32. v5: https://lkml.org/lkml/2015/12/10/131 Add "HAVE_ACPI_APEI_HEST_IA32" instead of "#if defined(__i386__) || defined(__x86_64__)". v4: https://lkml.org/lkml/2015/12/8/188 Rebase to latest kernel version(4.4-rc4). Move arch_apei_flush_tlb_one into header file as a inline function Add a new subfunction "hest_ia_init" for "acpi_disable_cmcff". v3: https://lkml.org/lkml/2015/12/3/521 Remove "acpi_disable_cmcff" from arm64 code, and wrap it in hest.c by "#if defined(__i386__) || defined(__x86_64__)" v2: https://lkml.org/lkml/2015/12/2/432 Rebase to latest kernel version(4.4-rc3). Move arch_apei_flush_tlb_one() to arch/arm64/kernel/acpi.c v1: https://lkml.org/lkml/2015/8/14/199 Move arch_apei_flush_tlb_one() to arch/arm64/include/asm/apci.h. Delete arch/arm64/kernel/apei.c. Add "#ifdef CONFIG_ACPI_APEI" for "acpi_disable_cmcff". arch/arm64/Kconfig | 1 + arch/arm64/include/asm/acpi.h | 22 +++++++++++++++++++++- arch/x86/kernel/acpi/apei.c | 3 --- drivers/acpi/apei/hest.c | 18 +++++++++++++++--- 4 files changed, 37 insertions(+), 7 deletions(-) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index bc3f00f..385cf13 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -51,6 +51,7 @@ config ARM64 select GENERIC_TIME_VSYSCALL select HANDLE_DOMAIN_IRQ select HARDIRQS_SW_RESEND + select HAVE_ACPI_APEI if (ACPI && EFI) select HAVE_ALIGNED_STRUCT_PAGE if SLUB select HAVE_ARCH_AUDITSYSCALL select HAVE_ARCH_BITREVERSE diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h index 5420cb0..f435967 100644 --- a/arch/arm64/include/asm/acpi.h +++ b/arch/arm64/include/asm/acpi.h @@ -17,6 +17,7 @@ #include <asm/cputype.h> #include <asm/smp_plat.h> +#include <asm/tlbflush.h> /* Macros for consistency checks of the GICC subtable of MADT */ #define ACPI_MADT_GICC_LENGTH \ @@ -110,8 +111,27 @@ static inline const char *acpi_get_enable_method(int cpu) } #ifdef CONFIG_ACPI_APEI +/* + * acpi_disable_cmcff is used in drivers/acpi/apei/hest.c for disabling + * IA-32 Architecture Corrected Machine Checkx(cmc) FIRMWARE_FIRST mode by + * boot parameter(acpi=nocmcff). But we don't have this IA-32 specific + * feature on ARM64, this definition is only for compatibility. + */ +#define acpi_disable_cmcff 1 pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr); -#endif + +/* + * Despite its name, this function must still broadcast the TLB + * invalidation in order to ensure other CPUs don't end up with junk + * entries as a result of speculation. Unusually, its also called in + * IRQ context (ghes_iounmap_irq) so if we ever need to use IPIs for + * TLB broadcasting, then we're in trouble here. + */ +static inline void arch_apei_flush_tlb_one(unsigned long addr) +{ + flush_tlb_kernel_range(addr, addr + PAGE_SIZE); +} +#endif /* CONFIG_ACPI_APEI */ #ifdef CONFIG_ACPI_NUMA int arm64_acpi_numa_init(void); diff --git a/arch/x86/kernel/acpi/apei.c b/arch/x86/kernel/acpi/apei.c index c280df6..ea3046e 100644 --- a/arch/x86/kernel/acpi/apei.c +++ b/arch/x86/kernel/acpi/apei.c @@ -24,9 +24,6 @@ int arch_apei_enable_cmcff(struct acpi_hest_header *hest_hdr, void *data) struct acpi_hest_ia_corrected *cmc; struct acpi_hest_ia_error_bank *mc_bank; - if (hest_hdr->type != ACPI_HEST_TYPE_IA32_CORRECTED_CHECK) - return 0; - cmc = (struct acpi_hest_ia_corrected *)hest_hdr; if (!cmc->enabled) return 0; diff --git a/drivers/acpi/apei/hest.c b/drivers/acpi/apei/hest.c index 20b3fcf..792a0d9 100644 --- a/drivers/acpi/apei/hest.c +++ b/drivers/acpi/apei/hest.c @@ -123,7 +123,18 @@ EXPORT_SYMBOL_GPL(apei_hest_parse); */ static int __init hest_parse_cmc(struct acpi_hest_header *hest_hdr, void *data) { - return arch_apei_enable_cmcff(hest_hdr, data); + if (hest_hdr->type != ACPI_HEST_TYPE_IA32_CORRECTED_CHECK) + return 0; + + if (!acpi_disable_cmcff) + return !arch_apei_enable_cmcff(hest_hdr, data); + + return 0; +} + +static inline int __init hest_ia32_init(void) +{ + return apei_hest_parse(hest_parse_cmc, NULL); } struct ghes_arr { @@ -232,8 +243,9 @@ void __init acpi_hest_init(void) goto err; } - if (!acpi_disable_cmcff) - apei_hest_parse(hest_parse_cmc, NULL); + rc = hest_ia32_init(); + if (rc) + goto err; if (!ghes_disable) { rc = apei_hest_parse(hest_parse_ghes_count, &ghes_count); -- 2.5.5

7 years, 9 months

[PATCH v9 0/9] acpi, clocksource: add GTDT driver and GTDT support in arm_arch_timer

by fu.wei＠linaro.org

From: Fu Wei <fu.wei(a)linaro.org> This patchset: (1)Preparation for adding GTDT support in arm_arch_timer: 1. Move some enums and marcos to header file; 2. Add a new enum for spi type; 3. Improve printk relevant code; 4. use readq to get 64-bit CNTVCT. (2)Introduce ACPI GTDT parser: drivers/acpi/arm64/acpi_gtdt.c Parse all kinds of timer in GTDT table of ACPI:arch timer, memory-mapped timer and SBSA Generic Watchdog timer. This driver can help to simplify all the relevant timer drivers, and separate all the ACPI GTDT knowledge from them. (3)Simplify ACPI code for arm_arch_timer (4)Add GTDT support for ARM memory-mapped timer This patchset has been tested on the following platforms: (1)ARM Foundation v8 model Changelog: V9: https://lkml.org/lkml/2016/7/25/ Improve pr_err message in acpi gtdt driver. Update Commit message for 7/9 shorten the irq mapping function name Improve GTDT driver for memory-mapped timer v8: https://lkml.org/lkml/2016/7/19/660 Improve "pr_fmt(fmt)" definition: add "ACPI" in front of "GTDT", and also improve printk message. Simplify is_timer_block and is_watchdog. Merge acpi_gtdt_desc_init and gtdt_arch_timer_init into acpi_gtdt_init(); Delete __init in include/linux/acpi.h for GTDT API Make ARM64 select GTDT. Delete "#include <linux/module.h>" from acpi_gtdt.c Simplify GT block parse code. v7: https://lkml.org/lkml/2016/7/13/769 Move the GTDT driver to drivers/acpi/arm64 Add add the ARM64-specific ACPI Support maintainers in MAINTAINERS Merge 3 patches of GTDT parser driver. Fix the for_each_platform_timer bug. v6: https://lkml.org/lkml/2016/6/29/580 split the GTDT driver to 4 parts: basic, arch_timer, memory-mapped timer, and SBSA Generic Watchdog timer Improve driver by suggestions and example code from Daniel Lezcano v5: https://lkml.org/lkml/2016/5/24/356 Sorting out all patches, simplify the API of GTDT driver: GTDT driver just fills the data struct for arm_arch_timer driver. v4: https://lists.linaro.org/pipermail/linaro-acpi/2016-March/006667.html Delete the kvm relevant patches Separate two patches for sorting out the code for arm_arch_timer. Improve irq info export code to allow missing irq info in GTDT table. v3: https://lkml.org/lkml/2016/2/1/658 Improve GTDT driver code: (1)improve pr_* by defining pr_fmt(fmt) (2)simplify gtdt_sbsa_gwdt_init (3)improve gtdt_arch_timer_data_init, if table is NULL, it will try to get GTDT table. Move enum ppi_nr to arm_arch_timer.h, and add enum spi_nr. Add arm_arch_timer get ppi from DT and GTDT support for kvm. v2: https://lkml.org/lkml/2015/12/2/10 Rebase to latest kernel version(4.4-rc3). Fix the bug about the config problem, use CONFIG_ACPI_GTDT instead of CONFIG_ACPI in arm_arch_timer.c v1: The first upstreaming version: https://lkml.org/lkml/2015/10/28/553 Fu Wei (9): clocksource/drivers/arm_arch_timer: Move enums and defines to header file clocksource/drivers/arm_arch_timer: Add a new enum for spi type clocksource/drivers/arm_arch_timer: Improve printk relevant code clocksource/drivers/arm_arch_timer: use readq to get 64-bit CNTVCT acpi/arm64: Add GTDT table parse driver clocksource/drivers/arm_arch_timer: Simplify ACPI support code. acpi/arm64: Add memory-mapped timer support in GTDT driver clocksource/drivers/arm_arch_timer: Add GTDT support for memory-mapped timer acpi/arm64: Add SBSA Generic Watchdog support in GTDT driver arch/arm64/Kconfig | 1 + drivers/acpi/Kconfig | 5 + drivers/acpi/Makefile | 1 + drivers/acpi/arm64/Kconfig | 5 + drivers/acpi/arm64/Makefile | 1 + drivers/acpi/arm64/acpi_gtdt.c | 309 +++++++++++++++++++++++++++++++++++ drivers/clocksource/Kconfig | 2 +- drivers/clocksource/arm_arch_timer.c | 233 +++++++++++++++++--------- drivers/watchdog/Kconfig | 1 + include/clocksource/arm_arch_timer.h | 32 ++++ include/linux/acpi.h | 7 + 11 files changed, 519 insertions(+), 78 deletions(-) create mode 100644 drivers/acpi/arm64/Kconfig create mode 100644 drivers/acpi/arm64/Makefile create mode 100644 drivers/acpi/arm64/acpi_gtdt.c -- 2.5.5

7 years, 9 months

[PATCH v11] acpi, apei, arm64: APEI initial support for aarch64.

by fu.wei＠linaro.org

From: Tomasz Nowicki <tomasz.nowicki(a)linaro.org> This commit provides APEI arch-specific bits for aarch64 Meanwhile, (1)add a new subfunction "hest_ia32_init" for "acpi_disable_cmcff" which is used by IA-32 Architecture Corrected Machine Check (CMC). (2)move HEST type (ACPI_HEST_TYPE_IA32_CORRECTED_CHECK) checking to a generic place. (3)select HAVE_ACPI_APEI when EFI and ACPI is set on ARM64, because arch_apei_get_mem_attribute is using efi_mem_attributes on ARM64. [Fu Wei: improve && upstream] Signed-off-by: Tomasz Nowicki <tomasz.nowicki(a)linaro.org> Tested-by: Jonathan (Zhixiong) Zhang <zjzhang(a)codeaurora.org> Signed-off-by: Fu Wei <fu.wei(a)linaro.org> Acked-by: Hanjun Guo <hanjun.guo(a)linaro.org> Tested-by: Tyler Baicar <tbaicar(a)codeaurora.org> Acked-by: Will Deacon <will.deacon(a)arm.com> --- Changelog: v11:https://lkml.org/lkml/2016/7 Rebase to v4.7-0e06f5c0 v10:https://lkml.org/lkml/2016/4/14 Fix the Alphabetical order problem in arch/arm64/Kconfig v9: https://lkml.org/lkml/2016/4/5/522 Improve the comment for arch_apei_flush_tlb_one. Using select "HAVE_ACPI_APEI if (ACPI && EFI)" to fix the EFI dependence problem. v8: https://lkml.org/lkml/2016/3/29/132 Fix a "undefined reference" bug by selecting EFI when ACPI_APEI is set on ARM64. v7: https://lkml.org/lkml/2016/3/17/183 Add comment for arch_apei_flush_tlb_one in arch/arm64/include/asm/acpi.h v6: https://lists.linaro.org/pipermail/linaro-acpi/2016-March/006644.html Move HEST type (ACPI_HEST_TYPE_IA32_CORRECTED_CHECK) checking to a generic place. Delete HAVE_ACPI_APEI_HEST_IA32. v5: https://lkml.org/lkml/2015/12/10/131 Add "HAVE_ACPI_APEI_HEST_IA32" instead of "#if defined(__i386__) || defined(__x86_64__)". v4: https://lkml.org/lkml/2015/12/8/188 Rebase to latest kernel version(4.4-rc4). Move arch_apei_flush_tlb_one into header file as a inline function Add a new subfunction "hest_ia_init" for "acpi_disable_cmcff". v3: https://lkml.org/lkml/2015/12/3/521 Remove "acpi_disable_cmcff" from arm64 code, and wrap it in hest.c by "#if defined(__i386__) || defined(__x86_64__)" v2: https://lkml.org/lkml/2015/12/2/432 Rebase to latest kernel version(4.4-rc3). Move arch_apei_flush_tlb_one() to arch/arm64/kernel/acpi.c v1: https://lkml.org/lkml/2015/8/14/199 Move arch_apei_flush_tlb_one() to arch/arm64/include/asm/apci.h. Delete arch/arm64/kernel/apei.c. Add "#ifdef CONFIG_ACPI_APEI" for "acpi_disable_cmcff". arch/arm64/Kconfig | 1 + arch/arm64/include/asm/acpi.h | 16 +++++++++++++++- arch/x86/kernel/acpi/apei.c | 3 --- drivers/acpi/apei/hest.c | 18 +++++++++++++++--- 4 files changed, 31 insertions(+), 7 deletions(-) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 20d5a60..a301765 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -49,6 +49,7 @@ config ARM64 select GENERIC_TIME_VSYSCALL select HANDLE_DOMAIN_IRQ select HARDIRQS_SW_RESEND + select HAVE_ACPI_APEI if (ACPI && EFI) select HAVE_ALIGNED_STRUCT_PAGE if SLUB select HAVE_ARCH_AUDITSYSCALL select HAVE_ARCH_BITREVERSE diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h index 5420cb0..d3d02dc 100644 --- a/arch/arm64/include/asm/acpi.h +++ b/arch/arm64/include/asm/acpi.h @@ -17,6 +17,7 @@ #include <asm/cputype.h> #include <asm/smp_plat.h> +#include <asm/tlbflush.h> /* Macros for consistency checks of the GICC subtable of MADT */ #define ACPI_MADT_GICC_LENGTH \ @@ -110,8 +111,21 @@ static inline const char *acpi_get_enable_method(int cpu) } #ifdef CONFIG_ACPI_APEI +#define acpi_disable_cmcff 1 pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr); -#endif + +/* + * Despite its name, this function must still broadcast the TLB + * invalidation in order to ensure other CPUs don't up with with junk + * entries as a result of speculation. Unusually, its also called in + * IRQ context (ghes_iounmap_irq) so if we ever need to use IPIs for + * TLB broadcasting, then we're in trouble here. + */ +static inline void arch_apei_flush_tlb_one(unsigned long addr) +{ + flush_tlb_kernel_range(addr, addr + PAGE_SIZE); +} +#endif /* CONFIG_ACPI_APEI */ #ifdef CONFIG_ACPI_NUMA int arm64_acpi_numa_init(void); diff --git a/arch/x86/kernel/acpi/apei.c b/arch/x86/kernel/acpi/apei.c index c280df6..ea3046e 100644 --- a/arch/x86/kernel/acpi/apei.c +++ b/arch/x86/kernel/acpi/apei.c @@ -24,9 +24,6 @@ int arch_apei_enable_cmcff(struct acpi_hest_header *hest_hdr, void *data) struct acpi_hest_ia_corrected *cmc; struct acpi_hest_ia_error_bank *mc_bank; - if (hest_hdr->type != ACPI_HEST_TYPE_IA32_CORRECTED_CHECK) - return 0; - cmc = (struct acpi_hest_ia_corrected *)hest_hdr; if (!cmc->enabled) return 0; diff --git a/drivers/acpi/apei/hest.c b/drivers/acpi/apei/hest.c index 20b3fcf..792a0d9 100644 --- a/drivers/acpi/apei/hest.c +++ b/drivers/acpi/apei/hest.c @@ -123,7 +123,18 @@ EXPORT_SYMBOL_GPL(apei_hest_parse); */ static int __init hest_parse_cmc(struct acpi_hest_header *hest_hdr, void *data) { - return arch_apei_enable_cmcff(hest_hdr, data); + if (hest_hdr->type != ACPI_HEST_TYPE_IA32_CORRECTED_CHECK) + return 0; + + if (!acpi_disable_cmcff) + return !arch_apei_enable_cmcff(hest_hdr, data); + + return 0; +} + +static inline int __init hest_ia32_init(void) +{ + return apei_hest_parse(hest_parse_cmc, NULL); } struct ghes_arr { @@ -232,8 +243,9 @@ void __init acpi_hest_init(void) goto err; } - if (!acpi_disable_cmcff) - apei_hest_parse(hest_parse_cmc, NULL); + rc = hest_ia32_init(); + if (rc) + goto err; if (!ghes_disable) { rc = apei_hest_parse(hest_parse_ghes_count, &ghes_count); -- 2.5.5

7 years, 9 months

Firmware Test Suite 16.07.00 is released

by ivanhu

FWTS 16.07.00 is released. It is available from: Tar: http://fwts.ubuntu.com/release/fwts-V16.07.00.tar.gz PPA: https://launchpad.net/~firmware-testing-team/+archive/ubuntu/ppa-fwts-stable Release notes: https://wiki.ubuntu.com/FirmwareTestSuite/ReleaseNotes/16.07.00 = New Features = * acpi: method: add _FIT test * acpi: pcct: add ACPI PCCT test * opal/prd_info: Add OPAL Processor Recovery Diagnostics * olog: olog.json: Add OPAL skiboot errors for olog scan * Add klog checking for errors from drivers/acpi/tables.c * klog: data.json: Add klog checking for kernel NUMA errors from drivers/acpi/numa.c * klog: data.json: Add klog checking for kernel EC errors from drivers/acpi/ec.c * klog: data.json: Add klog checking for errors from drivers/acpi/acpi_cmos_rtc.c * klog: data.json: Add klog checking for errors from drivers/acpi/nfit.c * klog: data.json: Add klog checking for errors from drivers/acpi/pci_root.c * klog: data.json: Add klog checking for errors from drivers/acpi/pci_mcfg.c * klog: data.json: Add klog checking for errors from drivers/acpi/cppc_acpi.c * klog: data.json: Add klog checking for errors from drivers/acpi/battery.c * klog: data.json: Add klog checking for errors from drivers/acpi/processor_idle.c * klog: data.json: Add klog checking for errors from drivers/acpi/sleep.c * klog: data.json: Add klog checking for errors from drivers/acpi/acpica/rsmisc.c * klog: data.json: Add klog checking for errors from drivers/acpi/evged.c * efi: enable module loading to load legacy or new efi driver * acpi: madt: Add support for ACPI 6.0a * acpi: madt: Add support for ACPI 6.1 * uefi: update reset type to uefi 2.6 * acpi: dbg2: Add missing debug port types = Fixed Bugs = * bios: mtrr: check MTRR default memory type * lib: acpi: fix a typo in fwts_acpi.h * utilities: kernelscan: Add in missing [ ] brackets tokenisation * acpi: rsdp: don't fail if RSDT and XSDT are both defined and different * lib: fwts_alloc: make allocator more robust * lib: fwts_pipeio: don't report failure on freopen failure * doc: update contributors and date to the manual * lib: olog: Improve message when sudo usage may help * opal/prd_info: Improve message when libfdt not installed * lib: framework: Improve message for results log file handling * uefi: add the header for using efi runtime service * efi_runtime: reuse the in-kernel guid structure * efi_runtime: reuse the in-kernel time structure * efi_runtime: reuse the in-kernel capsule header structure * uefi: remove the enum of reset type * efi_runtime: naming convention modification * efi_runtime: fix the style problems * debian/control: Fix incomplete dependencies for Linux headers (LP: #1606480) * acpi: madt: fix build fail for i386 * acpi: madt: Use 20 as the GIC ITS node length * devicetree/dt_sysinfo: clean up logic in stringlist_contains_last * devicetree/dt_sysinfo: fix reference platform compatible vs. model check * devicetree/dt_sysinfo: Add firestone model * fwts: Fix madt testing with broken MADT entries * fwts: Update .gitignore files * fwts/madt: Add address of subtable to messages * fwts/madt: Implement I/O APIC and I/O SAPIC value comparison test * fwts/madt: Remove TODO for x2apic > 255 check * fwts/madt: Add processor UID checking to madt tests * fwts_cpuinfo_x86: check for null pointers when using * lib: fwts_cpu: return info struct only when requested CPU is found * lib: fwts_cpu: query info from the first online CPU = Detail Changelog = To check /usr/share/doc/fwts/changelog.Debian.gz or fwts_16.07.00-0ubuntu1.debian.tar.gz from https://launchpad.net/ubuntu/+source/fwts Cheers, Ivan

7 years, 9 months

[PATCH v8 0/9] acpi, clocksource: add GTDT driver and GTDT support in arm_arch_timer

by fu.wei＠linaro.org

From: Fu Wei <fu.wei(a)linaro.org> This patchset: (1)Preparation for adding GTDT support in arm_arch_timer: 1. Move some enums and marcos to header file; 2. Add a new enum for spi type; 3. Improve printk relevant code; 4. use readq to get 64-bit CNTVCT. (2)Introduce ACPI GTDT parser: drivers/acpi/arm64/acpi_gtdt.c Parse all kinds of timer in GTDT table of ACPI:arch timer, memory-mapped timer and SBSA Generic Watchdog timer. This driver can help to simplify all the relevant timer drivers, and separate all the ACPI GTDT knowledge from them. (3)Simplify ACPI code for arm_arch_timer (4)Add GTDT support for ARM memory-mapped timer This patchset has been tested on the following platforms: (1)ARM Foundation v8 model Changelog: v8: https://lkml.org/lkml/2016/7/ Improve "pr_fmt(fmt)" definition: add "ACPI" in front of "GTDT", and also improve printk message. Simplify is_timer_block and is_watchdog. Merge acpi_gtdt_desc_init and gtdt_arch_timer_init into acpi_gtdt_init(); Delete __init in include/linux/acpi.h for GTDT API Make ARM64 select GTDT. Delete "#include <linux/module.h>" from acpi_gtdt.c Simplify GT block parse code. v7: https://lkml.org/lkml/2016/7/13/769 Move the GTDT driver to drivers/acpi/arm64 Add add the ARM64-specific ACPI Support maintainers in MAINTAINERS Merge 3 patches of GTDT parser driver. Fix the for_each_platform_timer bug. v6: https://lkml.org/lkml/2016/6/29/580 split the GTDT driver to 4 parts: basic, arch_timer, memory-mapped timer, and SBSA Generic Watchdog timer Improve driver by suggestions and example code from Daniel Lezcano v5: https://lkml.org/lkml/2016/5/24/356 Sorting out all patches, simplify the API of GTDT driver: GTDT driver just fills the data struct for arm_arch_timer driver. v4: https://lists.linaro.org/pipermail/linaro-acpi/2016-March/006667.html Delete the kvm relevant patches Separate two patches for sorting out the code for arm_arch_timer. Improve irq info export code to allow missing irq info in GTDT table. v3: https://lkml.org/lkml/2016/2/1/658 Improve GTDT driver code: (1)improve pr_* by defining pr_fmt(fmt) (2)simplify gtdt_sbsa_gwdt_init (3)improve gtdt_arch_timer_data_init, if table is NULL, it will try to get GTDT table. Move enum ppi_nr to arm_arch_timer.h, and add enum spi_nr. Add arm_arch_timer get ppi from DT and GTDT support for kvm. v2: https://lkml.org/lkml/2015/12/2/10 Rebase to latest kernel version(4.4-rc3). Fix the bug about the config problem, use CONFIG_ACPI_GTDT instead of CONFIG_ACPI in arm_arch_timer.c v1: The first upstreaming version: https://lkml.org/lkml/2015/10/28/553 Fu Wei (9): clocksource/drivers/arm_arch_timer: Move enums and defines to header file clocksource/drivers/arm_arch_timer: Add a new enum for spi type clocksource/drivers/arm_arch_timer: Improve printk relevant code clocksource/drivers/arm_arch_timer: use readq to get 64-bit CNTVCT acpi/arm64: Add GTDT table parse driver clocksource/drivers/arm_arch_timer: Simplify ACPI support code. acpi/arm64: Add memory-mapped timer support in GTDT driver clocksource/drivers/arm_arch_timer: Add GTDT support for memory-mapped timer acpi/arm64: Add SBSA Generic Watchdog support in GTDT driver arch/arm64/Kconfig | 1 + drivers/acpi/Kconfig | 5 + drivers/acpi/Makefile | 1 + drivers/acpi/arm64/Kconfig | 5 + drivers/acpi/arm64/Makefile | 1 + drivers/acpi/arm64/acpi_gtdt.c | 312 +++++++++++++++++++++++++++++++++++ drivers/clocksource/Kconfig | 2 +- drivers/clocksource/arm_arch_timer.c | 233 +++++++++++++++++--------- drivers/watchdog/Kconfig | 1 + include/clocksource/arm_arch_timer.h | 32 ++++ include/linux/acpi.h | 7 + 11 files changed, 522 insertions(+), 78 deletions(-) create mode 100644 drivers/acpi/arm64/Kconfig create mode 100644 drivers/acpi/arm64/Makefile create mode 100644 drivers/acpi/arm64/acpi_gtdt.c -- 2.5.5

7 years, 9 months

[RFC PATCH v4 0/5] ECAM quirks handling for ARM64 platforms

by Tomasz Nowicki

Quirk handling relies on an idea of matching MCFG OEM ID, TABLE ID and revision (the ones from standard header of MCFG table). Static array is used to keep quirk entries. Each entry consist of metioned MCFG IDs along with custom pci_ops structure and initialization call. As an example, last patch presents quirk handling mechanism usage for ThunderX PEM driver. Tomasz Nowicki (5): PCI: Embed pci_ecam_ops in pci_config_window structure PCI/ACPI: Move ACPI ECAM mapping to generic MCFG driver PCI: Check platform specific ECAM quirks ARM64/PCI: Start using quirks handling for ACPI based PCI host controller PCI: thunder: Add ThunderX PEM MCFG quirk to the list arch/arm64/kernel/pci.c | 42 +---------------- drivers/acpi/pci_mcfg.c | 40 ++++++++++++++++ drivers/pci/ecam.c | 6 +-- drivers/pci/host/Makefile | 1 + drivers/pci/host/mcfg-quirks.c | 95 +++++++++++++++++++++++++++++++++++++ drivers/pci/host/mcfg-quirks.h | 24 ++++++++++ drivers/pci/host/pci-thunder-pem.c | 96 ++++++++++++++++++++++++++++++++------ include/linux/pci-acpi.h | 5 ++ include/linux/pci-ecam.h | 2 +- 9 files changed, 254 insertions(+), 57 deletions(-) create mode 100644 drivers/pci/host/mcfg-quirks.c create mode 100644 drivers/pci/host/mcfg-quirks.h -- 1.9.1

7 years, 9 months

[RFC PATCH 0/3] ECAM quirks handling for ARM64 platforms

by Tomasz Nowicki

This series bases on pending ACPI PCI support for ARM64: https://lkml.org/lkml/2016/5/30/468 Quirk handling relies on an idea of matching MCFG OEM ID and OEM revision (the ones from standard header of MCFG table). Linker section is used so that quirks can be registered using special macro (see patches) and kept self contained. As an example, last patch presents above mechanism usage for ThunderX PEM driver. Tomasz Nowicki (3): pci, acpi: Match PCI config space accessors against platfrom specific ECAM quirks. arm64, pci: Start using quirks handling for ACPI based PCI host controller. pci, pci-thunder-pem: Add ACPI support for ThunderX PEM. arch/arm64/kernel/pci.c | 7 +- drivers/acpi/pci_mcfg.c | 32 +++++++++ drivers/pci/host/pci-thunder-pem.c | 132 +++++++++++++++++++++++++++++++++---- include/asm-generic/vmlinux.lds.h | 7 ++ include/linux/pci-acpi.h | 19 ++++++ 5 files changed, 181 insertions(+), 16 deletions(-) -- 1.9.1

7 years, 10 months

[PATCH v7 0/9] acpi, clocksource: add GTDT driver and GTDT support in arm_arch_timer

by fu.wei＠linaro.org

From: Fu Wei <fu.wei(a)linaro.org> This patchset: (1)Preparation for adding GTDT support in arm_arch_timer 1. Move some enums and marcos to header file 2. Add a new enum for spi type. 3. Improve printk relevant code (2)Introduce ACPI GTDT parser: drivers/acpi/gtdt.c Parse all kinds of timer in GTDT table of ACPI:arch timer, memory-mapped timer and SBSA Generic Watchdog timer. This driver can help to simplify all the relevant timer drivers, and separate all the ACPI GTDT knowledge from them. Also add add the ARM64-specific ACPI Support maintainers in MAINTAINERS. (3)Simplify ACPI code for arm_arch_timer (4)Add GTDT support for ARM memory-mapped timer This patchset has been tested on the following platforms: (1)ARM Foundation v8 model Changelog: v7: Move the GTDT driver to drivers/acpi/arm64 Add add the ARM64-specific ACPI Support maintainers in MAINTAINERS Merge 3 patches of GTDT parser driver. Fix the for_each_platform_timer bug. v6: https://lkml.org/lkml/2016/6/29/580 split the GTDT driver to 4 parts: basic, arch_timer, memory-mapped timer, and SBSA Generic Watchdog timer Improve driver by suggestions and example code from Daniel Lezcano v5: https://lkml.org/lkml/2016/5/24/356 Sorting out all patches, simplify the API of GTDT driver: GTDT driver just fills the data struct for arm_arch_timer driver. v4: https://lists.linaro.org/pipermail/linaro-acpi/2016-March/006667.html Delete the kvm relevant patches Separate two patches for sorting out the code for arm_arch_timer. Improve irq info export code to allow missing irq info in GTDT table. v3: https://lkml.org/lkml/2016/2/1/658 Improve GTDT driver code: (1)improve pr_* by defining pr_fmt(fmt) (2)simplify gtdt_sbsa_gwdt_init (3)improve gtdt_arch_timer_data_init, if table is NULL, it will try to get GTDT table. Move enum ppi_nr to arm_arch_timer.h, and add enum spi_nr. Add arm_arch_timer get ppi from DT and GTDT support for kvm. v2: https://lkml.org/lkml/2015/12/2/10 Rebase to latest kernel version(4.4-rc3). Fix the bug about the config problem, use CONFIG_ACPI_GTDT instead of CONFIG_ACPI in arm_arch_timer.c v1: The first upstreaming version: https://lkml.org/lkml/2015/10/28/553 Fu Wei (9): clocksource/drivers/arm_arch_timer: Move enums and defines to header file clocksource/drivers/arm_arch_timer: Add a new enum for spi type clocksource/drivers/arm_arch_timer: Improve printk relevant code acpi/arm64: Add GTDT table parse driver MAINTAINERS / ACPI: add the ARM64-specific ACPI Support maintainers clocksource/drivers/arm_arch_timer: Simplify ACPI support code. acpi/arm64: Add memory-mapped timer support in GTDT driver clocksource/drivers/arm_arch_timer: Add GTDT support for memory-mapped timer acpi/arm64: Add SBSA Generic Watchdog support in GTDT driver MAINTAINERS | 8 + drivers/acpi/Kconfig | 5 + drivers/acpi/Makefile | 1 + drivers/acpi/arm64/Kconfig | 15 ++ drivers/acpi/arm64/Makefile | 1 + drivers/acpi/arm64/acpi_gtdt.c | 343 +++++++++++++++++++++++++++++++++++ drivers/clocksource/Kconfig | 1 + drivers/clocksource/arm_arch_timer.c | 228 ++++++++++++++++------- drivers/watchdog/Kconfig | 1 + include/clocksource/arm_arch_timer.h | 32 ++++ include/linux/acpi.h | 7 + 11 files changed, 575 insertions(+), 67 deletions(-) create mode 100644 drivers/acpi/arm64/Kconfig create mode 100644 drivers/acpi/arm64/Makefile create mode 100644 drivers/acpi/arm64/acpi_gtdt.c -- 2.5.5

7 years, 10 months

[PATCH 0/3] watchdog, sbsa_gwdt: Update SBSA watchdog with the new infrastructure of watchdog.

by fu.wei＠linaro.org

From: Fu Wei <fu.wei(a)linaro.org> This patchset: (1)Try to fix an issue about min and max timeout validity check: when max_hw_heartbeat_ms is defined, this check should be skipped. (2)Use max_hw_heartbeat_ms instead of max_timeout in SBSA watchdog. (3)Set WDOG_HW_RUNNING, when SBSA watchdog is already running before it's initialized. Changelog: v1: The first formal upstreaming version RFC: https://lkml.org/lkml/2016/5/3/145 Pratyush Anand (3): watchdog: skip min and max timeout validity check when max_hw_heartbeat_ms is defined sbsa_gwdt: Use max_hw_heartbeat_ms instead of max_timeout sbsa_gwdt: Set WDOG_HW_RUNNING, when watchdog is already running. drivers/watchdog/sbsa_gwdt.c | 6 ++++-- drivers/watchdog/watchdog_core.c | 2 +- 2 files changed, 5 insertions(+), 3 deletions(-) -- 2.5.5

7 years, 10 months

[PATCH v6 00/10] acpi, clocksource: add GTDT driver and GTDT support in arm_arch_timer

by fu.wei＠linaro.org

From: Fu Wei <fu.wei(a)linaro.org> This patchset: (1)Preparation for adding GTDT support in arm_arch_timer 1. Move some enums and marcos to header file 2. Add a new enum for spi type. 3. Improve printk relevant code (2)Introduce ACPI GTDT parser: drivers/acpi/gtdt.c Parse all kinds of timer in GTDT table of ACPI:arch timer, memory-mapped timer and SBSA Generic Watchdog timer. This driver can help to simplify all the relevant timer drivers, and separate all the ACPI GTDT knowledge from them. (3)Simplify ACPI code for arm_arch_timer (4)Add GTDT support for ARM memory-mapped timer Changelog: v6: split the GTDT driver to 4 parts: basic, arch_timer, memory-mapped timer, and SBSA Generic Watchdog timer Improve driver by suggestions and example code from Daniel Lezcano v5: https://lkml.org/lkml/2016/5/24/356 Sorting out all patches, simplify the API of GTDT driver: GTDT driver just fills the data struct for arm_arch_timer driver. v4: https://lists.linaro.org/pipermail/linaro-acpi/2016-March/006667.html Delete the kvm relevant patches Separate two patches for sorting out the code for arm_arch_timer. Improve irq info export code to allow missing irq info in GTDT table. v3: https://lkml.org/lkml/2016/2/1/658 Improve GTDT driver code: (1)improve pr_* by defining pr_fmt(fmt) (2)simplify gtdt_sbsa_gwdt_init (3)improve gtdt_arch_timer_data_init, if table is NULL, it will try to get GTDT table. Move enum ppi_nr to arm_arch_timer.h, and add enum spi_nr. Add arm_arch_timer get ppi from DT and GTDT support for kvm. v2: https://lkml.org/lkml/2015/12/2/10 Rebase to latest kernel version(4.4-rc3). Fix the bug about the config problem, use CONFIG_ACPI_GTDT instead of CONFIG_ACPI in arm_arch_timer.c v1: The first upstreaming version: https://lkml.org/lkml/2015/10/28/553 Fu Wei (10): clocksource/drivers/arm_arch_timer: Move enums and defines to header file clocksource/drivers/arm_arch_timer: Add a new enum for spi type clocksource/drivers/arm_arch_timer: Improve printk relevant code acpi: Add some basic struct and functions in GTDT driver acpi: Add arch_timer support in GTDT table parse driver acpi: Add GTDT driver to kernel build system clocksource/drivers/arm_arch_timer: Simplify ACPI support code. acpi: Add memory-mapped timer support in GTDT driver clocksource/drivers/arm_arch_timer: Add GTDT support for memory-mapped timer acpi: Add SBSA Generic Watchdog support in GTDT driver drivers/acpi/Kconfig | 9 + drivers/acpi/Makefile | 1 + drivers/acpi/acpi_gtdt.c | 326 +++++++++++++++++++++++++++++++++++ drivers/clocksource/Kconfig | 1 + drivers/clocksource/arm_arch_timer.c | 227 +++++++++++++++++------- drivers/watchdog/Kconfig | 1 + include/clocksource/arm_arch_timer.h | 32 ++++ include/linux/acpi.h | 7 + 8 files changed, 538 insertions(+), 66 deletions(-) create mode 100644 drivers/acpi/acpi_gtdt.c -- 2.5.5

7 years, 10 months

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