Linaro-acpi November 2013

linaro-acpi@lists.linaro.org

21 participants
48 discussions

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

by naresh.bhat＠linaro.org

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

11 years, 1 month

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

by Hanjun Guo

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

11 years, 1 month

[PATCH] ACPI: FDT: clean up unused variable in early_init_dt_scan_acpi

by al.stone＠linaro.org

From: Al Stone <ahs3(a)redhat.com> Signed-off-by: Al Stone <al.stone(a)linaro.org> --- drivers/of/fdt.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index d1d17e0..6c4c937 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -797,7 +797,6 @@ int __init early_init_dt_scan_acpi(unsigned long node, const char *uname, unsigned long l; unsigned int *p; struct acpi_arm_root *pinfo; - unsigned char *sig; pr_debug("search \"chosen\" for acpi info, depth: %d, uname: %s\n", depth, uname); -- 1.8.3.1

11 years, 1 month

[PATCH] ACPI: ARM: stub out acpi_idle_play_dead properly

by al.stone＠linaro.org

From: Al Stone <ahs3(a)redhat.com> Signed-off-by: Al Stone <al.stone(a)linaro.org> --- drivers/acpi/processor_idle.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 587f3cf..e45f913 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -760,6 +760,7 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev, * @dev: the target CPU * @index: the index of suggested state */ +#ifdef CONFIG_X86 static int acpi_idle_play_dead(struct cpuidle_device *dev, int index) { struct acpi_processor_cx *cx = per_cpu(acpi_cstate[index], dev->cpu); @@ -767,9 +768,6 @@ static int acpi_idle_play_dead(struct cpuidle_device *dev, int index) ACPI_FLUSH_CPU_CACHE(); while (1) { - -#ifdef CONFIG_X86 - /* BOZO: abstract out? */ if (cx->entry_method == ACPI_CSTATE_HALT) safe_halt(); else if (cx->entry_method == ACPI_CSTATE_SYSTEMIO) { @@ -777,13 +775,18 @@ static int acpi_idle_play_dead(struct cpuidle_device *dev, int index) /* See comment in acpi_idle_do_entry() */ inl(acpi_gbl_FADT.xpm_timer_block.address); } else -#endif return -ENODEV; } /* Never reached */ return 0; } +#else +static int acpi_idle_play_dead(struct cpuidle_device *dev, int index) +{ + return 0; +} +#endif /** * acpi_idle_enter_simple - enters an ACPI state without BM handling -- 1.8.3.1

11 years, 1 month

[PATCH 0/2] Bring in FVP model DTS files

by al.stone＠linaro.org

From: Al Stone <ahs3(a)redhat.com> Just for convenience sake, bring in the DTS files for the FVP model so they are easier to find and modify. These files are all from ARM github; specifically: https://github.com/ARM-software/arm-trusted-firmware.git Al Stone (2): ACPI: ARM: update DTS for RTSM VE motherboard (from ARM github) ACPI: ARM: add in DTS files for the FVP model (from ARM github) arch/arm64/boot/dts/fvp-base-gicv2-psci.dts | 250 ++++++++++++++++++++ arch/arm64/boot/dts/fvp-base-gicv2legacy-psci.dts | 250 ++++++++++++++++++++ arch/arm64/boot/dts/fvp-base-gicv3-psci.dts | 259 +++++++++++++++++++++ arch/arm64/boot/dts/fvp-foundation-gicv2-psci.dts | 201 ++++++++++++++++ .../boot/dts/fvp-foundation-gicv2legacy-psci.dts | 201 ++++++++++++++++ arch/arm64/boot/dts/fvp-foundation-gicv3-psci.dts | 210 +++++++++++++++++ .../arm64/boot/dts/fvp-foundation-motherboard.dtsi | 197 ++++++++++++++++ arch/arm64/boot/dts/rtsm_ve-motherboard.dtsi | 38 ++- 8 files changed, 1602 insertions(+), 4 deletions(-) create mode 100644 arch/arm64/boot/dts/fvp-base-gicv2-psci.dts create mode 100644 arch/arm64/boot/dts/fvp-base-gicv2legacy-psci.dts create mode 100644 arch/arm64/boot/dts/fvp-base-gicv3-psci.dts create mode 100644 arch/arm64/boot/dts/fvp-foundation-gicv2-psci.dts create mode 100644 arch/arm64/boot/dts/fvp-foundation-gicv2legacy-psci.dts create mode 100644 arch/arm64/boot/dts/fvp-foundation-gicv3-psci.dts create mode 100644 arch/arm64/boot/dts/fvp-foundation-motherboard.dtsi -- 1.8.3.1

11 years, 1 month

FVP ASL files

by Al Stone

Just to put it on the record: if you need to add/change/modify ASL in the acpi-asl.git tree for use with the ARM FVP models, the correct platform directory to use is rtsm_ve-aemv8a.acpi. I think everyone probably understands this and is already doing so; I just wanted to make sure it was explicit and recorded. Thanks. -- ciao, al ----------------------------------- Al Stone Software Engineer Linaro Enterprise Group al.stone(a)linaro.org -----------------------------------

11 years, 1 month

[PATCH] RTSM model / dts: remove timer node since it is converted to ACPI

by Hanjun Guo

Remove timer node since it is converted to ACPI using GTDT table. Signed-off-by: Hanjun Guo <hanjun.guo(a)linaro.org> --- arch/arm64/boot/dts/rtsm_ve-aemv8a-acpi.dts | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm64/boot/dts/rtsm_ve-aemv8a-acpi.dts b/arch/arm64/boot/dts/rtsm_ve-aemv8a-acpi.dts index 7f348eb..2649f49 100644 --- a/arch/arm64/boot/dts/rtsm_ve-aemv8a-acpi.dts +++ b/arch/arm64/boot/dts/rtsm_ve-aemv8a-acpi.dts @@ -79,6 +79,9 @@ interrupts = <1 9 0xf04>; }; + /* + * Removed for ACPI + * timer { compatible = "arm,armv8-timer"; interrupts = <1 13 0xff01>, @@ -88,9 +91,6 @@ clock-frequency = <100000000>; }; - /* - * Removed for ACPI - * pmu { compatible = "arm,armv8-pmuv3"; interrupts = <0 60 4>, -- 1.7.9.5

11 years, 1 month

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

by Hanjun Guo

Create GTDT table to convert arch timer for early boot. Signed-off-by: Hanjun Guo <hanjun.guo(a)linaro.org> --- platforms/foundation-v8.acpi/gtdt.asl | 35 ++++++++++++++++++++++----------- 1 file changed, 23 insertions(+), 12 deletions(-) diff --git a/platforms/foundation-v8.acpi/gtdt.asl b/platforms/foundation-v8.acpi/gtdt.asl index 18c821a..714d61c 100644 --- a/platforms/foundation-v8.acpi/gtdt.asl +++ b/platforms/foundation-v8.acpi/gtdt.asl @@ -1,5 +1,6 @@ /* * Copyright (c) 2013, Al Stone <al.stone(a)linaro.org> + * Hanjun Guo <hanjun.guo(a)linaro.org> * * [GTDT] Generic Timer Description Table * Format: [ByteLength] FieldName : HexFieldValue @@ -21,22 +22,32 @@ [0004] Flags (decoded below) : 00000001 Memory Present : 1 -[0004] Secure PL1 Interrupt : 00000000 -[0004] SPL1 Flags (decoded below) : 00000000 - Trigger Mode : 0 +/* In Foundation model's dts file, the last cell of interrupts + * is 0xff01, it means its cpu mask is FF, and trigger type + * and flag is 1 = low-to-high edge triggered. + * + * so in ACPI the Trigger Mode is 1 - Edge triggered, and + * Polarity is 0 - Active high as ACPI spec describled. + * + * using direct mapping for hwirqs, it means that we using + * ID [16, 31] for PPI, not [0, 15] used in FDT. + */ +[0004] Secure PL1 Interrupt : 0000001d +[0004] SPL1 Flags (decoded below) : 00000001 + Trigger Mode : 1 Polarity : 0 -[0004] Non-Secure PL1 Interrupt : 00000000 -[0004] NSPL1 Flags (decoded below) : 00000000 - Trigger Mode : 0 +[0004] Non-Secure PL1 Interrupt : 0000001e +[0004] NSPL1 Flags (decoded below) : 00000001 + Trigger Mode : 1 Polarity : 0 -[0004] Virtual Timer Interrupt : 00000000 -[0004] VT Flags (decoded below) : 00000000 - Trigger Mode : 0 +[0004] Virtual Timer Interrupt : 0000001b +[0004] VT Flags (decoded below) : 00000001 + Trigger Mode : 1 Polarity : 0 -[0004] Non-Secure PL2 Interrupt : 00000000 -[0004] NSPL2 Flags (decoded below) : 00000000 - Trigger Mode : 0 +[0004] Non-Secure PL2 Interrupt : 0000001a +[0004] NSPL2 Flags (decoded below) : 00000001 + Trigger Mode : 1 Polarity : 0 -- 1.7.9.5

11 years, 1 month

[PATCH] ARM: ACPI: remove the global lock, arm is reduced hw

by Graeme Gregory

Remove the global lock handling as this is not needed for the reduced hardware platform that arm/arm64 is currently defined as. Signed-off-by: Graeme Gregory <graeme.gregory(a)linaro.org> --- drivers/acpi/plat/arm/boot.c | 24 ------------------------ 1 file changed, 24 deletions(-) diff --git a/drivers/acpi/plat/arm/boot.c b/drivers/acpi/plat/arm/boot.c index 1a6d225..3bfe86e 100644 --- a/drivers/acpi/plat/arm/boot.c +++ b/drivers/acpi/plat/arm/boot.c @@ -785,27 +785,3 @@ static int __init parse_acpi(char *arg) return 0; } early_param("acpi", parse_acpi); - -#if (!ACPI_REDUCED_HARDWARE) -int __acpi_acquire_global_lock(unsigned int *lock) -{ - unsigned int old, new, val; - do { - old = *lock; - new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1)); - val = cmpxchg(lock, old, new); - } while (unlikely (val != old)); - return (new < 3) ? -1 : 0; -} - -int __acpi_release_global_lock(unsigned int *lock) -{ - unsigned int old, new, val; - do { - old = *lock; - new = old & ~0x3; - val = cmpxchg(lock, old, new); - } while (unlikely (val != old)); - return old & 0x1; -} -#endif -- 1.8.3.1

11 years, 1 month

[PATCH V2 0/4] Convert GIC to ACPI

by Hanjun Guo

This patch set trys to convert GIC to ACPI which based on patches from Amit, I rework them and try to get things simpler. In MADT table, there are GIC cpu interface base address and GIC distributor base address, use them to convert GIC to ACPI. GIC should be converted after all the devices refer to GIC are converted. But this patch set can be safely applied to linaro-acpi git tree if we don't remove the DT node of GIC, the node of GIC can be removed after all the devices converted to ACPI. v2: a) fix missed iounmap() when return in error path; b) add stab for acpi_gic_init(void) when !CONFIG_ACPI C) modify the GSI mapping from DT to ACPI d) remove the hack code and modify the change log a bit Amit Daniel Kachhap (2): irqdomain: Add a new API irq_create_acpi_mapping() ACPI: ARM: Update acpi_register_gsi to register with the core IRQ subsystem Hanjun Guo (2): irqchip / GIC: do not set default host for GIC domain multi-times when ACPI enabled ARM / GIC: convert GIC to ACPI using the information in MADT arch/arm64/kernel/irq.c | 4 ++ drivers/acpi/plat/arm/boot.c | 98 ++++++++++++++++++++++++++++++++++++------ drivers/irqchip/irq-gic.c | 5 ++- include/linux/acpi.h | 8 ++++ kernel/irq/irqdomain.c | 27 ++++++++++++ 5 files changed, 127 insertions(+), 15 deletions(-) -- 1.7.9.5

11 years, 1 month

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Linaro-acpi November 2013