Linaro-acpi August 2015

linaro-acpi@lists.linaro.org

24 participants
24 discussions

Tenemos los mejores títulos para ver en xtop

by paula

Tenemos los mejores títulos para ver en xtop Encontranos con la palabra xtop en todos los buscadores Estrenos y preestrenos: 8 APELLIDOS VASCOS AGUA ANTMAN (EL HOMBRE HORMIGA) CENIZAS DEL PASADO CERCANA OBSESION (THE BOY NEXT DOOR) CHAPPIE CIUDADES DE PAPEL (PAPER TOWNS) CON DERECHO A ROCE DE CABALLOS Y DE HOMBRES DONDE SE ESCONDE EL DIABLO (WHERE THE DEVIL HIDES) DOS DIAS UNA NOCHE (DEUX JOURS UNE NUIT) DOS LOCAS EN FUGA (HOT PURSUIT) DRAGON BALL Z RESURRECTION F (LA RESURRECCION DE FREEZER) EL AÑO MAS VIOLENTO (A MOST VIOLENT YEAR) EL GRAN PEQUEÑO (LITTLE BOY) EL GRAN SECUESTRO DE MR HEINEKEN EL GURU DE LAS BODAS (THE WEDDING RINGER) EL NUEVO EXOTICO HOTEL MARIGOLD EL PAYASO DEL MAL (CLOWN) EL SECRETO DE ADALINE EL SEPTIMO ENANITO (THE 7TH DWARF) EL ULTIMO NARUTO LA PELICULA (THE LAST NARUTO THE MOVIE) ELIMINADO (UNFRIENDED) ESCRIBIENDO DE AMOR INTENSAMENTE JESSABELLE JURASSIC WORLD (JURASSIC PARK IV) LA CASA DEL DEMONIO (DEMONIC) LA DAMA DE ORO (WOMAN IN GOLD) LA MECANICA DEL CORAZON (JACK ET LA MECANIQUE DU COEUR) LA NOCHE DEL DEMONIO 3 (INSIDIOUS) LA OVEJA SHAUN LA PELICULA LOS 33 DE SAN JOSE (33) LUGARES OSCUROS (DARK PLACES) MAD MAX 4 FURIA EN LA CARRETERA MAGIC MIKE XXL MAN ON WIRE (EL ALAMBRISTA) MIENTRAS SEAMOS JOVENES (WHILE WERE YOUNG) MIL VECES BUENAS NOCHES (A THOU SAND TIMES GOODNIGHT) MINIONS MISION IMPOSIBLE 5 NACION SECRETA NOTAS PERFECTAS 2 (PITCH PERFECT 2) PIXELES POLTERGEIST (JUEGOS DIABOLICOS) PUERTAS ADENTRO (MUSARAÑAS) RAPIDOS Y FURIOSOS 7 RESUCITADOS SHOWROOM SPY UNA ESPIA DESPISTADA TE SIGUE (IT FOLLOWS) TED 2 TERAPIA DE BROADWAY (SHES FUNNY THAT WAY) TERMINATOR 5 GENESIS TERREMOTO LA FALLA DE SAN ANDRES TOMORROWLAND EL MUNDO DEL MAÑANA TRASH (LADRONES DE ESPERANZA) TRUENO Y LA CASA MAGICA UN CASTILLO EN ITALIA (UN CHATEAU EN ITALIE) UN NUEVO DESPERTAR (THE HUMBLING) UNA NOCHE PARA SOBREVIVIR (RUN ALL NIGHT) VOLEY series DE TV : A TOUCH OF CLOTH ANTMAN (EL HOMBRE HORMIGA) COMBATE DARK MATTER DEVIOUS MAIDS DOWNTON ABBEY DR HOUSE DRAGON BALL SUPE FEAR THE WALKING DEAD GAME OF THRONES GYM TONY HEROES HUMANS INFIELES (MISTRESSES) JONATHAN STRANGE AND MR NORRELL LOS CABALLEROS DEL ZODIACO ALMA DORADA MAJOR CRIMES ORANGE IS THE NEW BLACK OUTLANDER PATITO FEO STITCHERS TEEN WOLF THE BLACKLIST THE BRINK THE FOSTERS THE MESSENGERS WAYWARD PINES ZUMBA SCULPT

8 years, 8 months

[PATCH v7 0/8] CPUFreq driver using CPPC methods

by Ashwin Chaugule

CPPC: ==== CPPC (Collaborative Processor Performance Control) is a new way to control CPU performance using an abstract continous scale as against a discretized P-state scale which is tied to CPU frequency only. It is defined in the ACPI 5.0+ spec. In brief, the basic operation involves: - OS makes a CPU performance request. (Can provide min and max tolerable bounds) - Platform (such as BMC) is free to optimize request within requested bounds depending on power/thermal budgets etc. - Platform conveys its decision back to OS The communication between OS and platform occurs through another medium called (PCC) Platform communication Channel. This is a generic mailbox like mechanism which includes doorbell semantics to indicate register updates. See drivers/mailbox/pcc.c This patchset introduces a CPPC based CPUFreq driver that works with existing governors such as ondemand. The CPPC table parsing and the CPPC communication semantics are abstracted into separate files to allow future CPPC based drivers to implement their own governors if required. Initial patchsets included an adaptation of the PID governor from intel_pstate.c. However recent experiments led to extensive modifications of the algorithm to calculate CPU busyness. Until it is verified that these changes are worthwhile, the existing governors should provide for a good enough starting point for ARM64 servers. Finer details about the PCC and CPPC spec are available in the latest ACPI 5.1 specification.[2] Testing: ======= This was tested on an SBSA compatible ARMv8 server with CPPCv2 firmware running on a remote processor. I verified that each CPUs performance limits were detected and that new performance requests were made by the on-demand governor proportional to the load on each CPU. I also verified that using the acpi_processor driver correctly maps the physical CPU ids to logical CPU ids, which helps in picking up the proper _CPC details from a processor object, in the case where CPU physical ids may not be contiguous. Changes since V6: - Separated PSS and CST from ACPI processor driver in two patches. - Made new Kconfig symbols auto selectable from Arch Kconfigs. Changes since V5: - Checkpatch cleanups. - Change pss_init to pss_perf_init. Rec by Srinivas Pandruvada. - Explicit comment explaining why postcore_initcall to pcc mailbox. - Fold acpi_processor_syscore_init/exit into CONFIG_ACPI_CST. - Added patch with dummy functions used by ACPI_HOTPLUG_CPU. Changes since V4: - Misc cleanups. Addressed feedback from Rafael. - Made acpi_processor.c independent of C-states, P-states and others. - Per CPU scanning for _CPC is now made from acpi_processor.c - Added new Kconfig options for legacy C states and P states to enable future support for newer alternatives as defined in the ACPI spec 6.0. Changes since V3: - Split CPPC backend methods into separate files. - Add frontend driver which plugs into existing CPUfreq governors. - Simplify PCC driver by moving communication space mapping and read/write into client drivers. Changes since V2: - Select driver if !X86, since intel_pstate will use HWP extensions instead. - Added more comments. - Added Freq domain awareness and PSD parsing. Changes since V1: - Create a new driver based on Dirks suggestion. - Fold in CPPC backend hooks into main driver. Changes since V0: [1] - Split intel_pstate.c into a generic PID governor and platform specific backend. - Add CPPC accessors as PID backend. [1] - http://lwn.net/Articles/608715/ [2] - http://www.uefi.org/sites/default/files/resources/ACPI_5_1release.pdf [3] - https://patches.linaro.org/40705/ Ashwin Chaugule (8): PCC: Initialize PCC Mailbox earlier at boot ACPI: Split out ACPI PSS from ACPI Processor driver ACPI: Decouple ACPI idle and ACPI processor drivers ACPI: Introduce CPU performance controls using CPPC CPPC: Add a CPUFreq driver for use with CPPC ACPI: Add weak routines for ACPI CPU Hotplug CPPC: Probe for CPPC tables for each ACPI Processor object PCC: Enable PCC only when needed arch/arm64/Kconfig | 1 + arch/x86/Kconfig | 1 + drivers/acpi/Kconfig | 41 +- drivers/acpi/Makefile | 8 +- drivers/acpi/acpi_processor.c | 18 + drivers/acpi/cppc_acpi.c | 812 ++++++++++++++++++++++++++++++++++++++++ drivers/acpi/processor_driver.c | 90 +++-- drivers/cpufreq/Kconfig | 2 +- drivers/cpufreq/Kconfig.arm | 16 + drivers/cpufreq/Kconfig.x86 | 2 + drivers/cpufreq/Makefile | 2 + drivers/cpufreq/cppc_cpufreq.c | 197 ++++++++++ drivers/mailbox/Kconfig | 2 +- drivers/mailbox/pcc.c | 8 +- include/acpi/cppc_acpi.h | 137 +++++++ include/acpi/processor.h | 129 +++++-- 16 files changed, 1392 insertions(+), 74 deletions(-) create mode 100644 drivers/acpi/cppc_acpi.c create mode 100644 drivers/cpufreq/cppc_cpufreq.c create mode 100644 include/acpi/cppc_acpi.h -- 1.9.1

8 years, 9 months

leg-kernel tag leg-20150804.0 released

by Graeme Gregory

The leg-kernel release has been made and tagged as leg-20150804.0 This is based on mainline kernel v4.2-rc5 Repository : http://git.linaro.org/leg/acpi/leg-kernel.git Direct Link: http://git.linaro.org/leg/acpi/leg-kernel.git/commit/8ceb073a662c26983126e5… Notes :- 1) SPCR updated with patch from Leif Lindholm to match devices using _CRS not _ADR which not all devices have (it is not mandated in ACPI, SPCR or SBSA/SBBR specs).

8 years, 9 months

[PATCH] arm64: acpi: identify SPCR device by _CRS instead of _ADR

by Leif Lindholm

The first version of SPCR handling code identified the correct device by comparing the address in SPCR with _ADR objects, through walking the namespace. Instead, use the required _CRS object for this matching, making the functionality more portable. Signed-off-by: Leif Lindholm <leif.lindholm(a)linaro.org> --- By my interpretation of the spec, the use of _ADR for this purpose is incorrect. Regardless, this patch makes automatic SPCR console identification work on Juno and FVP. arch/arm64/kernel/acpi.c | 32 +++++++++++++++++++------------- 1 file changed, 19 insertions(+), 13 deletions(-) diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c index c5c6e49..64129b8 100644 --- a/arch/arm64/kernel/acpi.c +++ b/arch/arm64/kernel/acpi.c @@ -313,31 +313,37 @@ static int __init acpi_parse_spcr(struct acpi_table_header *table) static acpi_status acpi_spcr_device_scan(acpi_handle handle, u32 level, void *context, void **retv) { - unsigned long long adr; + unsigned long long adr = 0; struct acpi_buffer name_buffer = { ACPI_ALLOCATE_BUFFER, NULL }; acpi_status status = AE_OK; struct acpi_device *adev; + struct list_head resource_list; + struct resource_entry *rentry; status = acpi_get_name(handle, ACPI_FULL_PATHNAME, &name_buffer); if (ACPI_FAILURE(status)) return status; + adev = acpi_bus_get_acpi_device(handle); + if (!adev) { + pr_err("Err locating SPCR device from ACPI handle\n"); + return AE_OK; /* skip this one */ + } + /* - * does thie APCI entry have an associated Address? + * Read device address from _CRS. */ - status = acpi_evaluate_integer(handle, "_ADR", NULL, &adr); - if (ACPI_FAILURE(status)) - return AE_OK; /* not device we are interested in... */ - - if (adr == spcr_serial_addr) { - - adev = acpi_bus_get_acpi_device(handle); + INIT_LIST_HEAD(&resource_list); + if (acpi_dev_get_resources(adev, &resource_list, NULL, NULL) <= 0) + return AE_OK; - if (!adev) { - pr_err("Err locating SPCR device from ACPI handle\n"); - return AE_OK; /* skip this one */ - } + list_for_each_entry(rentry, &resource_list, node) { + if (resource_type(rentry->res) == IORESOURCE_MEM) + adr = rentry->res->start; + } + acpi_dev_free_resource_list(&resource_list); + if (adr == spcr_serial_addr) { acpi_spcr_serial_device = adev; pr_info("SPCR serial console: %s (0x%llx)\n", -- 2.1.4

8 years, 9 months

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Linaro-acpi August 2015