Linaro-acpi March 2015

linaro-acpi@lists.linaro.org

42 participants
28 discussions

leg-kernel tag leg-20150311.0 released

by Graeme Gregory

The leg-kernel release has been made and tagged as leg-20150311.0 This is based on mainline kernel v4.0-rc3 Repository : http://git.linaro.org/leg/acpi/leg-kernel.git Direct Link: https://git.linaro.org/leg/acpi/leg-kernel.git/commit/791dbf03ba4a5f302b410… Notes :- 1) This release restores support for AMD Seattle. 2) This release incorporates the SBSA UART support for pl011 driver from Andre Przywara. This means that your console will become ttyAMA0 (console=ttyAMA0) on Juno/FVP. It also means to run FVP model you need these options :- -C bp.pl011_uart0.untimed_fifos=0 -C bp.pl011_uart0.revision="r1p5"

9 years, 10 months

[PATCH v9 00/21] Introduce ACPI for ARM64 based on ACPI 5.1

by Hanjun Guo

Changes since v8: - remove MPIDR packing things by introducing phys_cpuid_t; - update patch acpi: fix acpi_os_ioremap for arm64 to follow Rafael's suggestion; - Squash patch (disable ACPI if ACPI less than 5.1) to patch (Get RSDP and ACPI boot-time table); - Move sleep_arm.c to arch/arm64/ and rename it as acpi_sleep.c - Rework the uefi generated empty dtb to enable acpi when no dtb is available, thanks Ard for the updated patch. - rework the function of register cpu for kexec case - use pr_debug() instead of pr_info() when scanning MADT. - rebase on top of 4.0-rc1 Thanks Hanjun Al Stone (4): ARM64 / ACPI: Get RSDP and ACPI boot-time tables ARM64 / ACPI: Introduce early_param "acpi=" to enable/disable ACPI ARM64 / ACPI: Select ACPI_REDUCED_HARDWARE_ONLY if ACPI is enabled on ARM64 ARM64 / ACPI: additions of ACPI documentation for arm64 Graeme Gregory (6): ACPI: add arm64 to the platforms that use ioremap ACPI / sleep: Introduce arm64 specific acpi_sleep.c ARM64 / ACPI: If we chose to boot from acpi then disable FDT ARM64 / ACPI: Get PSCI flags in FADT for PSCI init ARM64 / ACPI: Enable ARM64 in Kconfig Documentation: ACPI for ARM64 Hanjun Guo (8): ACPI / table: Use pr_debug() instead of pr_info() for MADT table scanning ACPI / processor: Introduce phys_cpuid_t for CPU hardware ID ARM64 / ACPI: Introduce PCI stub functions for ACPI ACPI / table: Print GIC information when MADT is parsed ARM64 / ACPI: Parse MADT for SMP initialization ACPI / processor: Make it possible to get CPU hardware ID via GICC ARM64 / ACPI: Introduce ACPI_IRQ_MODEL_GIC and register device's gsi clocksource / arch_timer: Parse GTDT to initialize arch timer Mark Salter (2): ARM64: allow late use of early_ioremap ACPI: fix acpi_os_ioremap for arm64 Tomasz Nowicki (1): irqchip: Add GICv2 specific ACPI boot support Documentation/arm64/acpi_object_usage.txt | 594 ++++++++++++++++++++++++++++++ Documentation/arm64/arm-acpi.txt | 506 +++++++++++++++++++++++++ Documentation/arm64/why_use_acpi.txt | 231 ++++++++++++ Documentation/kernel-parameters.txt | 3 +- arch/arm64/Kconfig | 3 + arch/arm64/include/asm/acenv.h | 18 + arch/arm64/include/asm/acpi.h | 96 +++++ arch/arm64/include/asm/cpu_ops.h | 1 + arch/arm64/include/asm/fixmap.h | 3 + arch/arm64/include/asm/pci.h | 6 + arch/arm64/include/asm/psci.h | 3 +- arch/arm64/include/asm/smp.h | 5 +- arch/arm64/kernel/Makefile | 1 + arch/arm64/kernel/acpi.c | 386 +++++++++++++++++++ arch/arm64/kernel/acpi_sleep.c | 28 ++ arch/arm64/kernel/cpu_ops.c | 2 +- arch/arm64/kernel/pci.c | 25 ++ arch/arm64/kernel/psci.c | 78 ++-- arch/arm64/kernel/setup.c | 21 +- arch/arm64/kernel/smp.c | 2 +- arch/arm64/kernel/time.c | 7 + arch/ia64/include/asm/acpi.h | 4 + arch/ia64/kernel/acpi.c | 2 +- arch/x86/include/asm/acpi.h | 4 + arch/x86/kernel/acpi/boot.c | 2 +- drivers/acpi/Kconfig | 3 +- drivers/acpi/Makefile | 2 + drivers/acpi/acpi_processor.c | 7 +- drivers/acpi/bus.c | 3 + drivers/acpi/osl.c | 6 +- drivers/acpi/processor_core.c | 60 ++- drivers/acpi/tables.c | 52 ++- drivers/clocksource/arm_arch_timer.c | 132 +++++-- drivers/irqchip/irq-gic.c | 102 +++++ drivers/irqchip/irqchip.c | 3 + include/acpi/acpi_io.h | 4 + include/acpi/processor.h | 6 +- include/linux/acpi.h | 17 +- include/linux/clocksource.h | 6 + include/linux/irqchip/arm-gic-acpi.h | 29 ++ 40 files changed, 2359 insertions(+), 104 deletions(-) create mode 100644 Documentation/arm64/acpi_object_usage.txt create mode 100644 Documentation/arm64/arm-acpi.txt create mode 100644 Documentation/arm64/why_use_acpi.txt create mode 100644 arch/arm64/include/asm/acenv.h create mode 100644 arch/arm64/include/asm/acpi.h create mode 100644 arch/arm64/kernel/acpi.c create mode 100644 arch/arm64/kernel/acpi_sleep.c create mode 100644 include/linux/irqchip/arm-gic-acpi.h -- 1.9.1

9 years, 10 months

[PATCH v2 0/9] PCI: MMCONFIG clean up

by Tomasz Nowicki

MCFG ACPI table and PCI ECAM standard have no arch dependencies so it can be used across all architectures. Currently MMCONFIG related code resides in arch/x86 directories. This patch set is going to isolate non-architecure specific code and make it accessible for all architectures. v1 -> v2 changes: - use generic readb/readw etc. accessors instead of AMD Fam10h workaround - separate ACPI and ECAM code - improve ECAM code naming Tomasz Nowicki (9): x86, pci: Clean up comment about buggy MMIO config space access for AMD Fam10h CPUs. x86, pci: Abstract PCI config accessors and use AMD Fam10h workaround exclusively. x86, pci: Reorder logic of pci_mmconfig_insert() function x86, pci, acpi: Move arch-agnostic MMCONFIG (aka ECAM) and ACPI code out of arch/x86/ directory pci, acpi, mcfg: Provide generic implementation of MCFG code initialization. x86, pci: mmconfig_{32,64}.c code refactoring - remove code duplication. x86, pci, ecam: mmconfig_64.c becomes default implementation for ECAM driver. pci, acpi, mcfg: Share ACPI PCI config space accessors. pci, ecam: Improve naming for ecam.c content and areas where it is used. arch/x86/Kconfig | 3 + arch/x86/include/asm/pci_x86.h | 34 +--- arch/x86/pci/Makefile | 5 +- arch/x86/pci/acpi.c | 3 +- arch/x86/pci/mmconfig-shared.c | 340 +++++++++++---------------------------- arch/x86/pci/mmconfig_32.c | 47 ++---- arch/x86/pci/mmconfig_64.c | 153 ------------------ arch/x86/pci/numachip.c | 27 +--- drivers/acpi/Makefile | 1 + drivers/acpi/mcfg.c | 121 ++++++++++++++ drivers/pci/Kconfig | 7 + drivers/pci/Makefile | 5 + drivers/pci/ecam.c | 356 +++++++++++++++++++++++++++++++++++++++++ drivers/xen/pci.c | 6 +- include/linux/ecam.h | 56 +++++++ 15 files changed, 668 insertions(+), 496 deletions(-) delete mode 100644 arch/x86/pci/mmconfig_64.c create mode 100644 drivers/acpi/mcfg.c create mode 100644 drivers/pci/ecam.c create mode 100644 include/linux/ecam.h -- 1.9.1

9 years, 10 months

[RFC PATCH 0/7] hw/arm/virt: Dynamic ACPI v5.1 table generation

by Alexander Spyridakis

Currently, the virt machine model generates Device Tree information dynamically based on the existing devices in the system. This patch series extends the same concept but for ACPI information instead. A total of seven tables have been implemented in this patch series, which is the minimum for a basic ARM support. The set of generated tables are: - RSDP - XSDT - MADT - GTDT - FADT - FACS - DSDT The tables are created in standalone buffers, taking into account the needed information passed from the virt machine model. When the generation is finalized, the individual buffers are compacted to a single ACPI binary blob, where it is injected on the guest memory space in a fixed location. The guest kernel can find the ACPI tables by providing to it the physical address of the ACPI blob (e.g. acpi_rsdp=0x47000000 boot argument). This series has been tested on the Foundation Model 0.8 build 5206 and the Juno development board. For kernel and driver support it is based on the "Introduce ACPI for ARM64 based on ACPI 5.1" and "Drivers for Juno to boot from ACPI" patch series from Hanjun Guo. Alexander Spyridakis (7): hw/i386: Move ACPI header definitions in an arch-independent location hw/arm/virt-acpi: Basic skeleton for dynamic generation of ACPI tables hw/arm/virt-acpi: Generate RSDP and XSDT, add helper functions hw/arm/virt-acpi: Generate FACS and FADT, update ACPI headers hw/arm/virt-acpi: GIC and Arch Timer definitions in MADT and GTDT hw/arm/virt-acpi: Generation of DSDT including virt devices hw/arm/virt: Enable dynamic generation of ACPI v5.1 tables hw/arm/Makefile.objs | 2 +- hw/arm/boot.c | 26 +++ hw/arm/virt-acpi.c | 555 ++++++++++++++++++++++++++++++++++++++++++++ hw/arm/virt.c | 54 ++++- hw/i386/acpi-build.c | 2 +- hw/i386/acpi-defs.h | 368 ----------------------------- include/hw/acpi/acpi-defs.h | 535 ++++++++++++++++++++++++++++++++++++++++++ include/hw/arm/arm.h | 2 + include/hw/arm/virt-acpi.h | 73 ++++++ tests/bios-tables-test.c | 2 +- 10 files changed, 1244 insertions(+), 375 deletions(-) create mode 100644 hw/arm/virt-acpi.c delete mode 100644 hw/i386/acpi-defs.h create mode 100644 include/hw/acpi/acpi-defs.h create mode 100644 include/hw/arm/virt-acpi.h -- 1.9.1

9 years, 10 months

[PATCH 0/1] Add SPCR/DBG2 tables for kernel testing/debug

by Graeme Gregory

These patches add the DBG2/SPCR tables for FVP/Juno for kernel testing. They allow a kernel to find a serial console without console= line. They have been tested using the Redhat patches for SPCR support which are work in progress! Thanks Graeme

9 years, 10 months

[V4 PATCH 0/2] Introduce ACPI support for ahci_platform driver

by Suravee Suthikulpanit

This patch series introduce ACPI support for AHCI platform driver. Existing ACPI support for AHCI assumes the device controller is a PCI device. Since there is no ACPI _CID for generic AHCI controller, the driver could not use it for matching devices. Therefore, this patch introduces a mechanism for drivers to match devices using ACPI _CLS method. _CLS contains PCI-defined class-code. This patch series also modifies ACPI modalias to add class-code to the exisiting format, which currently only uses _HID and _CIDs. This is required to support loadable modules w/ _CLS. This patch series is rebased from and tested with: http://git.linaro.org/leg/acpi/acpi.git acpi-5.1-v9 This topic was discussed earlier here (as part of introducing support for AMD Seattle SATA controller): http://marc.info/?l=linux-arm-kernel&m=141083492521584&w=2 Changes from V3 (https://lkml.org/lkml/2015/2/8/106) * Instead of introducing new structure acpi_device_cls, add cls into the acpi_device_id, and modify the __acpi_match_device to also match for cls. (per Mika suggestion.) * Add loadable module support, which requires changes in ACPI modalias. (per Mika suggestion.) * Rebased and tested with acpi-5.1-v9 Changes from V2 (https://lkml.org/lkml/2015/1/5/662) * Update with review comment from Rafael in patch 1/2 * Rebased and tested with acpi-5.1-v8 Changes from V1 (https://lkml.org/lkml/2014/12/19/345) * Rebased to 3.19.0-rc2 * Change from acpi_cls in device_driver to acpi_match_cls (Hanjun comment) * Change the matching logic in acpi_driver_match_device() due to the new special PRP0001 _HID. * Simplify the return type of acpi_match_device_cls() to boolean. Changes from RFC (https://lkml.org/lkml/2014/12/17/446) * Remove #ifdef and make non-ACPI version of the acpi_match_device_cls as inline. (per Arnd) * Simplify logic to retrieve and evaluate _CLS handle. (per Hanjun) Suravee Suthikulpanit (2): ACPI / scan: Add support for ACPI _CLS device matching ata: ahci_platform: Add ACPI _CLS matching drivers/acpi/acpica/acutils.h | 3 ++ drivers/acpi/acpica/nsxfname.c | 20 +++++++++-- drivers/acpi/acpica/utids.c | 71 +++++++++++++++++++++++++++++++++++++++ drivers/acpi/scan.c | 17 ++++++++-- drivers/ata/Kconfig | 2 +- drivers/ata/ahci_platform.c | 9 +++++ include/acpi/acnames.h | 1 + include/acpi/actypes.h | 4 ++- include/linux/mod_devicetable.h | 1 + scripts/mod/devicetable-offsets.c | 1 + scripts/mod/file2alias.c | 13 +++++-- 11 files changed, 133 insertions(+), 9 deletions(-) -- 2.1.0

9 years, 10 months

[PATCH v3 0/9] Start deprecating _OSI on new architectures

by al.stone＠linaro.org

From: Al Stone <al.stone(a)linaro.org> The use of the ACPI _OSI method in Linux has a long and sordid history. Instead of perpetuating past complications on new architectures, the consensus amongst those writing the ACPI specification and those using it seems to be to ultimately deprecate the use of _OSI. A change request has been submitted (but not yet decided upon) to modify the ACPI spec accordingly. In the meantime, these patches rearrange the implementation of _OSI so that it can be deprecated, or ultimately removed completely, on at least arm64 platforms. This is done by separating out the _OSI implementation and moving it into a new file. For x86 and ia64, there is no change in functionality. But, this allows us to provide a separate implementation of _OSI for arm64 that generates a warning that it has been deprecated, and always returns false; i.e., that the capability being queried for, whether OS name or functionality, is not supported. Patches 0005 through 0008 provide these changes; the first four patches are solely cleanup to the file drivers/acpi/osl.c made so that checkpatch will not complain. The final patch changes the default value for the _OS_ method for arm64 only. Since there is no need to pretend to be older versions of Windows, or any other OS at all, the _OS_ method will return "Linux" on arm64. One can still use the acpi_os_name kernel parameter if there is a need to use some other value. The first seven patches do not depend on arm64 support for ACPI and could be used independently. The last two patches make much more sense when used in conjunction with Hanjun's patches for ACPI 5.1 on arm64 [0]. In fact, patch 0008 cannot be applied without [0]. These have been through some simple testing on two different x86 laptops, and all seems well (Lenovo t440s and t430s ThinkPads). The arm64 code has been tested on an AMD Seattle system. Unfortunately, for ia64, all I could do was cross-compile the code; I have no access to hardware to test on. NB: the first four patches are solely cleanup to drivers/acpi/osl.c based on the results from checkpatch and can be treated independently. However, the remainder of the patch set assumes this cleanup has been done. There are some checkpatch warnings still remaining in osl.c -- specifically about use of volatiles and one line of 81 characters -- that these patches intentionally do not correct as they do not appear to need correcting. Changes in v3: -- add in cleanup to osl.c based on checkpatch output -- put arch-specific _OSI implementation in the correct place (arch/*) -- modify CONFIG item names and make them so they are not user selectable -- get rid of the BLACKLIST config item; it wasn't really needed. Changes in v2: -- significant simplification based on Rafael's comments -- ACPI spec change request has now been submitted [0] https://lkml.org/lkml/2015/2/2/261 Al Stone (9): ACPI: fix all errors reported by cleanpatch.pl in osl.c ACPI: clear up warnings on use of printk reported by checkpatch.pl ACPI: clean up checkpatch warnings for various bits of syntax ACPI: clean up checkpatch warnings for items with possible semantic value ACPI: move acpi_os_handler() so it can be made arch-dependent later ACPI: move _OSI support functions to allow arch-dependent implementation ACPI: enable arch-specific compilation for _OSI and the blacklist ACPI: arm64: use an arch-specific ACPI _OSI method and ACPI blacklist ACPI: arm64: use "Linux" as ACPI_OS_NAME for _OS on arm64 arch/arm64/Kconfig | 6 + arch/arm64/kernel/Makefile | 2 +- arch/arm64/kernel/acpi-blacklist.c | 20 ++ arch/arm64/kernel/acpi-osi.c | 25 +++ drivers/acpi/Kconfig | 3 + drivers/acpi/Makefile | 5 + drivers/acpi/osi.c | 245 +++++++++++++++++++++++ drivers/acpi/osl.c | 387 ++++++++----------------------------- include/acpi/acconfig.h | 2 + include/acpi/platform/aclinux.h | 4 + include/linux/acpi.h | 14 +- 11 files changed, 406 insertions(+), 307 deletions(-) create mode 100644 arch/arm64/kernel/acpi-blacklist.c create mode 100644 arch/arm64/kernel/acpi-osi.c create mode 100644 drivers/acpi/osi.c -- 2.1.0

9 years, 10 months

[PATCH v9 00/20] Introduce ACPI for ARM64 based on ACPI 5.1

by Hanjun Guo

As I discussed with Lorenzo, this version of ACPI patch set will send interally before send to upstream. updates since v8: - remove MPIDR packing things by introducing phys_cpuid_t; - update patch acpi: fix acpi_os_ioremap for arm64 to follow Rafael's suggestion; - Squash patch 09 (disable ACPI if ACPI less than 5.1) to patch 04 (Get RSDP and ACPI boot-time table); - Move sleep_arm.c to arch/arm64/ and rename it as acpi_sleep.c - Rework the uefi generated empty dtb to enable acpi when no dtb is available - rework the function of register cpu for kexec case - address other comments in v8 please help to review and comments welcomed, happy Chinese new year! Thanks Hanjun Al Stone (4): ARM64 / ACPI: Get RSDP and ACPI boot-time tables ARM64 / ACPI: Introduce early_param "acpi=" to enable/disable ACPI ARM64 / ACPI: Select ACPI_REDUCED_HARDWARE_ONLY if ACPI is enabled on ARM64 arm64: ACPI: additions of ACPI documentation for arm64 Graeme Gregory (6): acpi: add arm64 to the platforms that use ioremap ACPI / sleep: Introduce arm64 specific sleep_arm.c ARM64 / ACPI: If we chose to boot from acpi then disable FDT ARM64 / ACPI: Get PSCI flags in FADT for PSCI init ARM64 / ACPI: Enable ARM64 in Kconfig Documentation: ACPI for ARM64 Hanjun Guo (7): ACPI / processor: Introduce phys_cpuid_t for CPU hardware ID ARM64 / ACPI: Introduce PCI stub functions for ACPI ACPI / table: Print GIC information when MADT is parsed ARM64 / ACPI: Parse MADT for SMP initialization ACPI / processor: Make it possible to get CPU hardware ID via GICC ARM64 / ACPI: Introduce ACPI_IRQ_MODEL_GIC and register device's gsi clocksource / arch_timer: Parse GTDT to initialize arch timer Mark Salter (2): arm64: allow late use of early_ioremap acpi: fix acpi_os_ioremap for arm64 Tomasz Nowicki (1): irqchip: Add GICv2 specific ACPI boot support Documentation/arm64/acpi_object_usage.txt | 594 ++++++++++++++++++++++++++++++ Documentation/arm64/arm-acpi.txt | 506 +++++++++++++++++++++++++ Documentation/arm64/why_use_acpi.txt | 231 ++++++++++++ Documentation/kernel-parameters.txt | 3 +- arch/arm64/Kconfig | 3 + arch/arm64/include/asm/acenv.h | 18 + arch/arm64/include/asm/acpi.h | 97 +++++ arch/arm64/include/asm/cpu_ops.h | 1 + arch/arm64/include/asm/fixmap.h | 3 + arch/arm64/include/asm/pci.h | 6 + arch/arm64/include/asm/psci.h | 3 +- arch/arm64/include/asm/smp.h | 5 +- arch/arm64/kernel/Makefile | 1 + arch/arm64/kernel/acpi.c | 385 +++++++++++++++++++ arch/arm64/kernel/acpi_sleep.c | 28 ++ arch/arm64/kernel/cpu_ops.c | 2 +- arch/arm64/kernel/pci.c | 25 ++ arch/arm64/kernel/psci.c | 78 ++-- arch/arm64/kernel/setup.c | 20 +- arch/arm64/kernel/smp.c | 2 +- arch/arm64/kernel/time.c | 7 + arch/ia64/include/asm/acpi.h | 4 + arch/ia64/kernel/acpi.c | 2 +- arch/x86/include/asm/acpi.h | 4 + arch/x86/kernel/acpi/boot.c | 2 +- drivers/acpi/Kconfig | 3 +- drivers/acpi/Makefile | 2 + drivers/acpi/acpi_processor.c | 7 +- drivers/acpi/bus.c | 3 + drivers/acpi/osl.c | 6 +- drivers/acpi/processor_core.c | 60 ++- drivers/acpi/tables.c | 43 +++ drivers/clocksource/arm_arch_timer.c | 132 +++++-- drivers/irqchip/irq-gic.c | 102 +++++ drivers/irqchip/irqchip.c | 3 + include/acpi/acpi_io.h | 4 + include/acpi/processor.h | 6 +- include/linux/acpi.h | 20 +- include/linux/clocksource.h | 6 + include/linux/irqchip/arm-gic-acpi.h | 29 ++ 40 files changed, 2366 insertions(+), 90 deletions(-) create mode 100644 Documentation/arm64/acpi_object_usage.txt create mode 100644 Documentation/arm64/arm-acpi.txt create mode 100644 Documentation/arm64/why_use_acpi.txt create mode 100644 arch/arm64/include/asm/acenv.h create mode 100644 arch/arm64/include/asm/acpi.h create mode 100644 arch/arm64/kernel/acpi.c create mode 100644 arch/arm64/kernel/acpi_sleep.c create mode 100644 include/linux/irqchip/arm-gic-acpi.h -- 1.9.1

9 years, 10 months

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Linaro-acpi March 2015