linaro-kernel July 2013

linaro-kernel@lists.linaro.org

73 participants
90 discussions

[PATCH] arm64: KVM: Support X-Gene guest VCPU on APM X-Gene host

by Anup Patel

This patch allows us to have X-Gene guest VCPU when using KVM arm64 on APM X-Gene host. We add KVM_ARM_TARGET_XGENE_V8 for X-Gene compatible guest VCPU and we return KVM_ARM_TARGET_XGENE_V8 in kvm_target_cpu() when running on X-Gene host. Signed-off-by: Anup Patel <anup.patel(a)linaro.org> Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar(a)linaro.org> --- arch/arm64/include/uapi/asm/kvm.h | 3 ++- arch/arm64/kvm/guest.c | 34 ++++++++++++++++++++++------------ arch/arm64/kvm/sys_regs_generic_v8.c | 3 +++ 3 files changed, 27 insertions(+), 13 deletions(-) diff --git a/arch/arm64/include/uapi/asm/kvm.h b/arch/arm64/include/uapi/asm/kvm.h index 5031f42..8194707 100644 --- a/arch/arm64/include/uapi/asm/kvm.h +++ b/arch/arm64/include/uapi/asm/kvm.h @@ -55,8 +55,9 @@ struct kvm_regs { #define KVM_ARM_TARGET_AEM_V8 0 #define KVM_ARM_TARGET_FOUNDATION_V8 1 #define KVM_ARM_TARGET_CORTEX_A57 2 +#define KVM_ARM_TARGET_XGENE_V8 3 -#define KVM_ARM_NUM_TARGETS 3 +#define KVM_ARM_NUM_TARGETS 4 /* KVM_ARM_SET_DEVICE_ADDR ioctl id encoding */ #define KVM_ARM_DEVICE_TYPE_SHIFT 0 diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c index 2c3ff67..e99b0a5 100644 --- a/arch/arm64/kvm/guest.c +++ b/arch/arm64/kvm/guest.c @@ -207,19 +207,29 @@ int __attribute_const__ kvm_target_cpu(void) unsigned long implementor = read_cpuid_implementor(); unsigned long part_number = read_cpuid_part_number(); - if (implementor != ARM_CPU_IMP_ARM) - return -EINVAL; - - switch (part_number) { - case ARM_CPU_PART_AEM_V8: - return KVM_ARM_TARGET_AEM_V8; - case ARM_CPU_PART_FOUNDATION: - return KVM_ARM_TARGET_FOUNDATION_V8; - case ARM_CPU_PART_CORTEX_A57: - /* Currently handled by the generic backend */ - return KVM_ARM_TARGET_CORTEX_A57; + switch (implementor) { + case ARM_CPU_IMP_ARM: + switch (part_number) { + case ARM_CPU_PART_AEM_V8: + return KVM_ARM_TARGET_AEM_V8; + case ARM_CPU_PART_FOUNDATION: + return KVM_ARM_TARGET_FOUNDATION_V8; + case ARM_CPU_PART_CORTEX_A57: + return KVM_ARM_TARGET_CORTEX_A57; + default: + return -EINVAL; + } + break; + case ARM_CPU_IMP_APM: + switch (part_number) { + case APM_CPU_PART_POTENZA: + return KVM_ARM_TARGET_XGENE_V8; + default: + return -EINVAL; + } + break; default: - return -EINVAL; + return -EINVAL; } } diff --git a/arch/arm64/kvm/sys_regs_generic_v8.c b/arch/arm64/kvm/sys_regs_generic_v8.c index 4268ab9..87f0b3f4 100644 --- a/arch/arm64/kvm/sys_regs_generic_v8.c +++ b/arch/arm64/kvm/sys_regs_generic_v8.c @@ -90,6 +90,9 @@ static int __init sys_reg_genericv8_init(void) &genericv8_target_table); kvm_register_target_sys_reg_table(KVM_ARM_TARGET_CORTEX_A57, &genericv8_target_table); + kvm_register_target_sys_reg_table(KVM_ARM_TARGET_XGENE_V8, + &genericv8_target_table); + return 0; } late_initcall(sys_reg_genericv8_init); -- 1.7.9.5

10 years, 9 months

[PATCH] ASoC: tegra: Enable COMPILE_TEST builds

by Mark Brown

From: Mark Brown <broonie(a)linaro.org> Since there is no architecture dependency in the code allow it to be built on any platform when COMPILE_TEST is enabled. Signed-off-by: Mark Brown <broonie(a)linaro.org> --- sound/soc/tegra/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/tegra/Kconfig b/sound/soc/tegra/Kconfig index 995b120..cd168a7 100644 --- a/sound/soc/tegra/Kconfig +++ b/sound/soc/tegra/Kconfig @@ -1,6 +1,6 @@ config SND_SOC_TEGRA tristate "SoC Audio for the Tegra System-on-Chip" - depends on ARCH_TEGRA && TEGRA20_APB_DMA + depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST select REGMAP_MMIO select SND_SOC_GENERIC_DMAENGINE_PCM if TEGRA20_APB_DMA help -- 1.8.3.2

10 years, 9 months

[PATCH 1/3] ASoC: kirkwood: Remove unused headers

by Mark Brown

From: Mark Brown <broonie(a)linaro.org> Signed-off-by: Mark Brown <broonie(a)linaro.org> --- sound/soc/kirkwood/kirkwood-openrd.c | 2 -- sound/soc/kirkwood/kirkwood-t5325.c | 2 -- 2 files changed, 4 deletions(-) diff --git a/sound/soc/kirkwood/kirkwood-openrd.c b/sound/soc/kirkwood/kirkwood-openrd.c index b979c71..addbebc 100644 --- a/sound/soc/kirkwood/kirkwood-openrd.c +++ b/sound/soc/kirkwood/kirkwood-openrd.c @@ -16,9 +16,7 @@ #include <linux/platform_device.h> #include <linux/slab.h> #include <sound/soc.h> -#include <mach/kirkwood.h> #include <linux/platform_data/asoc-kirkwood.h> -#include <asm/mach-types.h> #include "../codecs/cs42l51.h" static int openrd_client_hw_params(struct snd_pcm_substream *substream, diff --git a/sound/soc/kirkwood/kirkwood-t5325.c b/sound/soc/kirkwood/kirkwood-t5325.c index 1d0ed6f..4f4cb56 100644 --- a/sound/soc/kirkwood/kirkwood-t5325.c +++ b/sound/soc/kirkwood/kirkwood-t5325.c @@ -15,9 +15,7 @@ #include <linux/platform_device.h> #include <linux/slab.h> #include <sound/soc.h> -#include <mach/kirkwood.h> #include <linux/platform_data/asoc-kirkwood.h> -#include <asm/mach-types.h> #include "../codecs/alc5623.h" static int t5325_hw_params(struct snd_pcm_substream *substream, -- 1.8.3.2

10 years, 9 months

armv8 panic at boot

by phi debian

Hi All I built a 'latest' kernel following the receipe, I tried t boot it and got a panic right away. . . . INIT: version 2.88 booting init[390]: undefined instruction: pc=0000007f988b64b8 Code: 2947bcce d50339bf b94038cd d5033fdf (d53be029) init[1]: undefined instruction: pc=0000007f988b64b8 Code: 2947bcce d50339bf b94038cd d5033fdf (d53be029) Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000004 Call trace: [<ffffffc000087568>] dump_backtrace+0x0/0x12c [<ffffffc0003a3ff0>] dump_stack+0x14/0x1c [<ffffffc0003a4240>] panic+0xe8/0x214 [<ffffffc0000986ec>] do_exit+0x748/0x7ac [<ffffffc000098acc>] do_group_exit+0x3c/0xcc [<ffffffc0000a3e0c>] get_signal_to_deliver+0x150/0x48c [<ffffffc000086ee8>] do_signal+0x5a4/0x5cc [<ffffffc000087174>] do_notify_resume+0x7c/0x8c ========================================= Here are the build element. FM000-KT-00035-r0p8-48rel5.tgz gcc-linaro-aarch64-linux-gnu-4.7+bzr115029-20121015+bzr2506_linux.tar.bz2 gits for boot-wrapper-aarch64 linaro-aarch64 Initial testing vexpress64-openembedded_lamp-armv8_20130623-376.img.gz img-foundation.axf The initial boot works fine from the FM000-KT-00035-r0p8-48rel5.tgz using the vexpress64-openembedded_lamp-armv8_20130623-376.img.gz image. Then I build linaro-aarch64 using tsocks git clone git://git.linaro.org/kernel/linaro-aarch64.git Tools chain OK and build OK Then I build the make CROSS_COMPILE=aarch64-linux-gnu- BOOTARGS='"root=/dev/vda2 consolelog=9 rw console=ttyAMA0"' IMAGE=linux-system-foundation.axf Symlink to files are k and the build is ok Then I boot the same way I boot the prebuild ./Foundation_v8 --image boot.axf --block-device ./root.img --network=nat I copy in boot.axf the linux-system-foundation.axf and got panic, I copy back the prebuild img-foundation.axf and it boot OK My linux-system-foundation has my kernel Image inside. Any ideas? Cheers, Phi

10 years, 9 months

[PATCH V2] ARM: cpuidle: davinci: Fix target residency

by Daniel Lezcano

The commit 19976c2a88d125aec16b9255c7197c297bbdd637 changed the target residency to 100000, assuming this is a careless mistake. commit 19976c2a88d125aec16b9255c7197c297bbdd637 Author: Robert Lee <rob.lee(a)linaro.org> Date: Tue Mar 20 15:22:45 2012 -0500 ARM: davinci: Consolidate time keeping and irq enable Enable core cpuidle timekeeping and irq enabling and remove that handling from this code. Signed-off-by: Robert Lee <rob.lee(a)linaro.org> Reviewed-by: Kevin Hilman <khilman(a)ti.com> Reviewed-by: Daniel Lezcano <daniel.lezcano(a)linaro.org> Acked-by: Jean Pihet <j-pihet(a)ti.com> Signed-off-by: Len Brown <len.brown(a)intel.com> The same happened to the at91's cpuidle driver. Fix it by putting the initial value to 10000. Signed-off-by: Daniel Lezcano <daniel.lezcano(a)linaro.org> --- arch/arm/mach-davinci/cpuidle.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-davinci/cpuidle.c b/arch/arm/mach-davinci/cpuidle.c index 36aef3a..f1ac1c9 100644 --- a/arch/arm/mach-davinci/cpuidle.c +++ b/arch/arm/mach-davinci/cpuidle.c @@ -65,7 +65,7 @@ static struct cpuidle_driver davinci_idle_driver = { .states[1] = { .enter = davinci_enter_idle, .exit_latency = 10, - .target_residency = 100000, + .target_residency = 10000, .flags = CPUIDLE_FLAG_TIME_VALID, .name = "DDR SR", .desc = "WFI and DDR Self Refresh", -- 1.7.9.5

10 years, 9 months

Re: [WM1811] How do I add custmize default register in WM1811

by Mark Brown

Hi JS Park, I just wrote the following code, it's compile tested only but ought to work I think. Should appear in v3.12 (or a fixed version anyway) - please let me know if it works for you. Thanks, Mark On Mon, Jul 08, 2013 at 01:29:30AM +0000, JS Park wrote: > <html> > <head> > <title>Samsung Enterprise Portal mySingle</title> > <meta content="text/html; charset=utf-8" http-equiv="Content-Type" /> > <style id="mysingle_style"> > p, td, li {font-family:Arial, arial; font-size:10pt; margin-top:5px;margin-bottom:5px;} body{margin:10px 10px 10px 10px; line-height:1.4; font-family:Arial, arial; font-size:10pt;}</style> > </head> > <body style="WORD-WRAP: break-word; FONT-SIZE: 10pt; FONT-FAMILY: 굴림"> >   > Dear Mark Brown, >   > Hi Mark. How have you been. > I am JS Park in Samsung System Audio Engineer. > I have question about regimap register function. >   > We can set default register to call regmap_register_pattch function. > but, see the below source code, It is possible just one time. >   > If need change defualt register, like as wm1811_reva_patch, I have to modify wm8994-core.c > Is it imposible not to change wm8994 driver source? > I just want to add custmize default regiister setting for Samsung specify register regarding earphone detection. >   >   > @drivers/base/regmap/regmap.c > int regmap_register_patch(struct regmap *map, const struct reg_default *regs, >                           int num_regs) > {       >         int i, ret; >         bool bypass; >                  >         /* If needed the implementation can be extended to support this */ >         if (map->patch) >                 return -EBUSY; >                 >         mutex_lock(&map->lock); >         >         bypass = map->cache_bypass; >                 > ... > } >   >   > Thanks. >  >   >   > <table id="confidentialsignimg"> > <tbody> > <tr> > <td namo_lock="namo_lock"> > <img border="0" alt="" src="cid:1CA8977932ED416E9D8527468A2126E80@samsung.net" width="520" /></td> > </tr> > </tbody> > </table></x-body /> > </body> > </html><img src='http://ext.samsung.net/mailcheck/SeenTimeChecker?do=58004ed604205cf318b287a…' border=0 width=0 height=0 style='display:none'>

10 years, 9 months

[PATCH] mfd: sec: Add register cache for interrupt mask registers

by Mark Brown

From: Mark Brown <broonie(a)linaro.org> The performance of regmap-irq is improved if the interrupt mask registers can be cached since it does read/modify/update cycles so start using the register cache infrastructure for those registers. We should use this more widely but I don't have a datasheet and this is a nice, conservative starting point. Signed-off-by: Mark Brown <broonie(a)linaro.org> --- drivers/mfd/sec-core.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c index 7976768..bbfc6c7 100644 --- a/drivers/mfd/sec-core.c +++ b/drivers/mfd/sec-core.c @@ -103,6 +103,31 @@ int sec_reg_update(struct sec_pmic_dev *sec_pmic, u8 reg, u8 val, u8 mask) } EXPORT_SYMBOL_GPL(sec_reg_update); +static bool s2mps11_volatile(struct device *dev, unsigned int reg) +{ + switch (reg) { + case S2MPS11_REG_INT1M: + case S2MPS11_REG_INT2M: + case S2MPS11_REG_INT3M: + return false; + default: + return true; + } +} + +static bool s5m8763_volatile(struct device *dev, unsigned int reg) +{ + switch (reg) { + case S5M8763_REG_IRQM1: + case S5M8763_REG_IRQM2: + case S5M8763_REG_IRQM3: + case S5M8763_REG_IRQM4: + return false; + default: + return true; + } +} + static struct regmap_config sec_regmap_config = { .reg_bits = 8, .val_bits = 8, @@ -113,6 +138,8 @@ static struct regmap_config s2mps11_regmap_config = { .val_bits = 8, .max_register = S2MPS11_REG_L38CTRL, + .volatile_reg = s2mps11_volatile, + .cache_type = REGCACHE_FLAT, }; static struct regmap_config s5m8763_regmap_config = { @@ -120,6 +147,8 @@ static struct regmap_config s5m8763_regmap_config = { .val_bits = 8, .max_register = S5M8763_REG_LBCNFG2, + .volatile_reg = s5m8763_volatile, + .cache_type = REGCACHE_FLAT, }; static struct regmap_config s5m8767_regmap_config = { @@ -127,6 +156,8 @@ static struct regmap_config s5m8767_regmap_config = { .val_bits = 8, .max_register = S5M8767_REG_LDO28CTRL, + .volatile_reg = s2mps11_volatile, + .cache_type = REGCACHE_FLAT, }; #ifdef CONFIG_OF -- 1.8.3.1

10 years, 9 months

[PATCH 1/4] ASoC: pcm3008: Remove noisy version print

by Mark Brown

From: Mark Brown <broonie(a)linaro.org> The version number has never been updated and the printk isn't based on any interaction with the device. Signed-off-by: Mark Brown <broonie(a)linaro.org> --- sound/soc/codecs/pcm3008.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/sound/soc/codecs/pcm3008.c b/sound/soc/codecs/pcm3008.c index f2a6282..32e5a59 100644 --- a/sound/soc/codecs/pcm3008.c +++ b/sound/soc/codecs/pcm3008.c @@ -28,8 +28,6 @@ #include "pcm3008.h" -#define PCM3008_VERSION "0.2" - #define PCM3008_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \ SNDRV_PCM_RATE_48000) @@ -64,8 +62,6 @@ static int pcm3008_soc_probe(struct snd_soc_codec *codec) struct pcm3008_setup_data *setup = codec->dev->platform_data; int ret = 0; - printk(KERN_INFO "PCM3008 SoC Audio Codec %s\n", PCM3008_VERSION); - /* DEM1 DEM0 DE-EMPHASIS_MODE * Low Low De-emphasis 44.1 kHz ON * Low High De-emphasis OFF -- 1.8.3.2

10 years, 9 months

[PATCH 1/9] spi: Support transfer speed checking in the core

by Mark Brown

From: Mark Brown <broonie(a)linaro.org> Allow drivers to avoid implementing their own checks for simple rates by specifying the limits in the master structure. Signed-off-by: Mark Brown <broonie(a)linaro.org> --- drivers/spi/spi.c | 7 +++++++ include/linux/spi/spi.h | 6 ++++++ 2 files changed, 13 insertions(+) diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 978dda2..a52f166 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -1387,6 +1387,13 @@ static int __spi_async(struct spi_device *spi, struct spi_message *message) BIT(xfer->bits_per_word - 1))) return -EINVAL; } + + if (xfer->speed_hz && master->min_speed_hz && + xfer->speed_hz < master->min_speed_hz) + return -EINVAL; + if (xfer->speed_hz && master->max_speed_hz && + xfer->speed_hz > master->max_speed_hz) + return -EINVAL; } message->spi = spi; diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 28e440b..cdf6681 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -233,6 +233,8 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv) * suported. If set, the SPI core will reject any transfer with an * unsupported bits_per_word. If not set, this value is simply ignored, * and it's up to the individual driver to perform any validation. + * @min_speed_hz: Lowest supported transfer speed + * @max_speed_hz: Highest supported transfer speed * @flags: other constraints relevant to this driver * @bus_lock_spinlock: spinlock for SPI bus locking * @bus_lock_mutex: mutex for SPI bus locking @@ -312,6 +314,10 @@ struct spi_master { #define SPI_BIT_MASK(bits) (((bits) == 32) ? ~0UL : (BIT(bits) - 1)) #define SPI_BPW_RANGE_MASK(min, max) (SPI_BIT_MASK(max) - SPI_BIT_MASK(min - 1)) + /* limits on transfer speed */ + u32 min_speed_hz; + u32 max_speed_hz; + /* other constraints relevant to this driver */ u16 flags; #define SPI_MASTER_HALF_DUPLEX BIT(0) /* can't do full duplex */ -- 1.8.3.2

10 years, 9 months

[PATCH] of/platform: Staticize of_platform_device_create_pdata()

by Mark Brown

From: Mark Brown <broonie(a)linaro.org> It is not used outside of this file so doesn't need to be in the global namespace. Signed-off-by: Mark Brown <broonie(a)linaro.org> --- drivers/of/platform.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/of/platform.c b/drivers/of/platform.c index e0a6514..b0d1ff8 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -196,7 +196,7 @@ EXPORT_SYMBOL(of_device_alloc); * Returns pointer to created platform device, or NULL if a device was not * registered. Unavailable devices will not get registered. */ -struct platform_device *of_platform_device_create_pdata( +static struct platform_device *of_platform_device_create_pdata( struct device_node *np, const char *bus_id, void *platform_data, -- 1.8.3.2

10 years, 10 months

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linaro-kernel July 2013