commits November 2009

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[git] batman-adv branch, linux, updated. 31791c214a69092cb9feb5a6198a695a21fa0b24
by postmaster＠open-mesh.net 09 Nov '09

09 Nov '09

The following commit has been merged in the linux branch: commit 0bfb34f3a168ee598164803ab3147dd41fc3f843 Author: Ben Dooks <ben-linux(a)fluff.org> Date: Mon Oct 26 20:37:21 2009 +0000 ARM: S3C2440: mini2440: Fix missing CONFIG_S3C_DEV_USB_HOST Fix missing select of S3C_DEV_USB_HOST when building for mini2440 only. Fixes the following error: built-in.o: undefined reference to `s3c_device_usb` Signed-off-by: Ben Dooks <ben-linux(a)fluff.org> diff --git a/arch/arm/mach-s3c2440/Kconfig b/arch/arm/mach-s3c2440/Kconfig index d7bba91..a8b69d7 100644 --- a/arch/arm/mach-s3c2440/Kconfig +++ b/arch/arm/mach-s3c2440/Kconfig @@ -103,6 +103,7 @@ config MACH_MINI2440 select LEDS_TRIGGER_BACKLIGHT select SND_S3C24XX_SOC_S3C24XX_UDA134X select S3C_DEV_NAND + select S3C_DEV_USB_HOST help Say Y here to select support for the MINI2440. Is a 10cm x 10cm board available via various sources. It can come with a 3.5" or 7" touch LCD. -- batman-adv

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[git] batman-adv branch, linux, updated. 31791c214a69092cb9feb5a6198a695a21fa0b24
by postmaster＠open-mesh.net 09 Nov '09

09 Nov '09

The following commit has been merged in the linux branch: commit fe4b83c4b6346fff28f4f10f34e1aca3f719d68c Merge: 8e8821e5bbcfb177d1b00aa9888a85bc7d6bf3ae e3d8024891dbfec6cf36c9b76177650f48118462 Author: Ben Dooks <ben-linux(a)fluff.org> Date: Wed Oct 28 18:34:25 2009 +0000 ARM: Merge fixes-s3c64xx-dma Merge branch 'fixes-s3c64xx-dma' into fixes-s3c-2632-rc5 -- batman-adv

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[git] batman-adv branch, linux, updated. 31791c214a69092cb9feb5a6198a695a21fa0b24
by postmaster＠open-mesh.net 09 Nov '09

09 Nov '09

The following commit has been merged in the linux branch: commit 8e8821e5bbcfb177d1b00aa9888a85bc7d6bf3ae Merge: 60e5c1b5ecd99e06d3133a2a20d58d3c2b9968ac e179ac0f4ea4f1e989fa754bada366f88fd81d27 Author: Ben Dooks <ben-linux(a)fluff.org> Date: Wed Oct 28 18:34:23 2009 +0000 ARM: Merge fixes-s3c64xx Merge branch 'fixes-s3c64xx' into fixes-s3c-2632-rc5 -- batman-adv

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[git] batman-adv branch, linux, updated. 31791c214a69092cb9feb5a6198a695a21fa0b24
by postmaster＠open-mesh.net 09 Nov '09

09 Nov '09

The following commit has been merged in the linux branch: commit d3bf3956c75b38def079fb6db40b5cf3f1466a93 Author: Ryan Mallon <ryan(a)bluewatersys.com> Date: Wed Oct 14 09:18:30 2009 +1300 ARM: S3C: Fix adc function exports Fix the export of s3c_adc_read. Signed-off-by: Ryan Mallon <ryan(a)bluewatersys.com> [ben-linux(a)fluff.org: remove unexport of s3c_adc_start, needed for ts] Signed-off-by: Ben Dooks <ben-linux(a)fluff.org> diff --git a/arch/arm/plat-s3c24xx/adc.c b/arch/arm/plat-s3c24xx/adc.c index 4d36b78..df47322 100644 --- a/arch/arm/plat-s3c24xx/adc.c +++ b/arch/arm/plat-s3c24xx/adc.c @@ -189,7 +189,7 @@ int s3c_adc_read(struct s3c_adc_client *client, unsigned int ch) err: return ret; } -EXPORT_SYMBOL_GPL(s3c_adc_convert); +EXPORT_SYMBOL_GPL(s3c_adc_read); static void s3c_adc_default_select(struct s3c_adc_client *client, unsigned select) -- batman-adv

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[git] batman-adv branch, linux, updated. 31791c214a69092cb9feb5a6198a695a21fa0b24
by postmaster＠open-mesh.net 09 Nov '09

09 Nov '09

The following commit has been merged in the linux branch: commit 60e5c1b5ecd99e06d3133a2a20d58d3c2b9968ac Author: Julia Lawall <julia(a)diku.dk> Date: Sat Oct 17 08:42:49 2009 +0200 ARM: S3C24XX: arch/arm/plat-s3c24xx: Move dereference after NULL test If the NULL test on buf is needed, then the dereference should be after the NULL test. A simplified version of the semantic match that detects this problem is as follows (http://coccinelle.lip6.fr/): // <smpl> @match exists@ expression x, E; identifier fld; @@ * x->fld ... when != $x = E\|&x$ * x == NULL // </smpl> Signed-off-by: Julia Lawall <julia(a)diku.dk> Signed-off-by: Ben Dooks <ben-linux(a)fluff.org> diff --git a/arch/arm/plat-s3c24xx/dma.c b/arch/arm/plat-s3c24xx/dma.c index 196b191..f046f8c 100644 --- a/arch/arm/plat-s3c24xx/dma.c +++ b/arch/arm/plat-s3c24xx/dma.c @@ -208,14 +208,14 @@ s3c2410_dma_loadbuffer(struct s3c2410_dma_chan *chan, { unsigned long reload; - pr_debug("s3c2410_chan_loadbuffer: loading buff %p (0x%08lx,0x%06x)\n", - buf, (unsigned long)buf->data, buf->size); - if (buf == NULL) { dmawarn("buffer is NULL\n"); return -EINVAL; } + pr_debug("s3c2410_chan_loadbuffer: loading buff %p (0x%08lx,0x%06x)\n", + buf, (unsigned long)buf->data, buf->size); + /* check the state of the channel before we do anything */ if (chan->load_state == S3C2410_DMALOAD_1LOADED) { -- batman-adv

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[git] batman-adv branch, linux, updated. 31791c214a69092cb9feb5a6198a695a21fa0b24
by postmaster＠open-mesh.net 09 Nov '09

09 Nov '09

The following commit has been merged in the linux branch: commit 2e31de6511a47738974d6b48fdc60c4f82f80d24 Author: Ben Dooks <ben-linux(a)fluff.org> Date: Wed Oct 14 10:13:22 2009 +0100 ARM: S3C2410: Fix link if CONFIG_S3C2410_IOTIMING is not set Fix the link errors if cpu-frequency support is enabled on s3c2410 systems but there is no CONFIG_S3C2410_IOTIMING set. Fix this by ensuring the relevant symbols are defined NULL if the code is not being built in. Fixes the following error: arch/arm/mach-s3c2410/built-in.o: undefined reference to `s3c2410_iotiming_get' arch/arm/mach-s3c2410/built-in.o: undefined reference to `s3c2410_iotiming_set' arch/arm/mach-s3c2410/built-in.o: undefined reference to `s3c2410_iotiming_calc' Signed-off-by: Ben Dooks <ben-linux(a)fluff.org> diff --git a/arch/arm/plat-s3c24xx/include/plat/cpu-freq-core.h b/arch/arm/plat-s3c24xx/include/plat/cpu-freq-core.h index efeb025..c776120 100644 --- a/arch/arm/plat-s3c24xx/include/plat/cpu-freq-core.h +++ b/arch/arm/plat-s3c24xx/include/plat/cpu-freq-core.h @@ -222,7 +222,9 @@ extern struct clk *s3c_cpufreq_clk_get(struct device *, const char *); /* S3C2410 and compatible exported functions */ extern void s3c2410_cpufreq_setrefresh(struct s3c_cpufreq_config *cfg); +extern void s3c2410_set_fvco(struct s3c_cpufreq_config *cfg); +#ifdef CONFIG_S3C2410_IOTIMING extern int s3c2410_iotiming_calc(struct s3c_cpufreq_config *cfg, struct s3c_iotimings *iot); @@ -231,8 +233,11 @@ extern int s3c2410_iotiming_get(struct s3c_cpufreq_config *cfg, extern void s3c2410_iotiming_set(struct s3c_cpufreq_config *cfg, struct s3c_iotimings *iot); - -extern void s3c2410_set_fvco(struct s3c_cpufreq_config *cfg); +#else +#define s3c2410_iotiming_calc NULL +#define s3c2410_iotiming_get NULL +#define s3c2410_iotiming_set NULL +#endif /* CONFIG_S3C2410_IOTIMING */ /* S3C2412 compatible routines */ -- batman-adv

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[git] batman-adv branch, linux, updated. 31791c214a69092cb9feb5a6198a695a21fa0b24
by postmaster＠open-mesh.net 09 Nov '09

09 Nov '09

The following commit has been merged in the linux branch: commit f5fb9b1a15285fde54c6b70cf35d328333e5b519 Author: Harald Welte <laforge(a)gnumonks.org> Date: Tue Sep 22 21:40:39 2009 +0100 ARM: S3C24XX: Introduce S3C2442B CPU Add the S3C2442B CPU ID to aid support the Openmoko GTA02 / Freerunner. Signed-off-by: Harald Welte <laforge(a)gnumonks.org> Signed-off-by: Andy Green <andy(a)warmcat.com> Signed-off-by: Nelson Castillo <arhuaco(a)freaks-unidos.net> [ben-linux(a)fluff.org: edit description for clarity and S3C2442B as uppercase] Signed-off-by: Ben Dooks <ben-linux(a)fluff.org> diff --git a/arch/arm/plat-s3c24xx/cpu.c b/arch/arm/plat-s3c24xx/cpu.c index 5447e60..4af9dd9 100644 --- a/arch/arm/plat-s3c24xx/cpu.c +++ b/arch/arm/plat-s3c24xx/cpu.c @@ -61,6 +61,7 @@ static const char name_s3c2410[] = "S3C2410"; static const char name_s3c2412[] = "S3C2412"; static const char name_s3c2440[] = "S3C2440"; static const char name_s3c2442[] = "S3C2442"; +static const char name_s3c2442b[] = "S3C2442B"; static const char name_s3c2443[] = "S3C2443"; static const char name_s3c2410a[] = "S3C2410A"; static const char name_s3c2440a[] = "S3C2440A"; @@ -112,6 +113,15 @@ static struct cpu_table cpu_ids[] __initdata = { .name = name_s3c2442 }, { + .idcode = 0x32440aab, + .idmask = 0xffffffff, + .map_io = s3c244x_map_io, + .init_clocks = s3c244x_init_clocks, + .init_uarts = s3c244x_init_uarts, + .init = s3c2442_init, + .name = name_s3c2442b + }, + { .idcode = 0x32412001, .idmask = 0xffffffff, .map_io = s3c2412_map_io, -- batman-adv

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[git] batman-adv branch, linux, updated. 31791c214a69092cb9feb5a6198a695a21fa0b24
by postmaster＠open-mesh.net 09 Nov '09

09 Nov '09

The following commit has been merged in the linux branch: commit e3d8024891dbfec6cf36c9b76177650f48118462 Author: Ben Dooks <ben-linux(a)fluff.org> Date: Tue Sep 22 16:48:56 2009 +0100 ARM: S3C: Add info for supporting circular DMA buffers The S3C64XX DMA implementation will work a lot better with the ability to enqueue circular buffers as the hardware can do it's own linked-list management. Add a function s3c_dma_has_circular() to show that the system can do this and a flag for the channel. Update the s3c24xx/s3c64xx I2S DMA code to deal with this. Signed-off-by: Ben Dooks <ben(a)simtec.co.uk> Signed-off-by: Ben Dooks <ben-linux(a)fluff.org> Acked-by: Mark Brown <broonie@@opensource.wolfsonmicro.com> diff --git a/arch/arm/mach-s3c2410/include/mach/dma.h b/arch/arm/mach-s3c2410/include/mach/dma.h index c3a2629..92e2687 100644 --- a/arch/arm/mach-s3c2410/include/mach/dma.h +++ b/arch/arm/mach-s3c2410/include/mach/dma.h @@ -110,6 +110,8 @@ enum s3c2410_dma_loadst { * waiting for reloads */ #define S3C2410_DMAF_AUTOSTART (1<<1) /* auto-start if buffer queued */ +#define S3C2410_DMAF_CIRCULAR (1 << 2) /* no circular dma support */ + /* dma buffer */ struct s3c2410_dma_buf; @@ -194,4 +196,9 @@ struct s3c2410_dma_chan { typedef unsigned long dma_device_t; +static inline bool s3c_dma_has_circular(void) +{ + return false; +} + #endif /* __ASM_ARCH_DMA_H */ diff --git a/arch/arm/mach-s3c6400/include/mach/dma.h b/arch/arm/mach-s3c6400/include/mach/dma.h index 1067619..004edab 100644 --- a/arch/arm/mach-s3c6400/include/mach/dma.h +++ b/arch/arm/mach-s3c6400/include/mach/dma.h @@ -68,6 +68,11 @@ static __inline__ int s3c_dma_has_circular(void) #define S3C2410_DMAF_CIRCULAR (1 << 0) +static inline bool s3c_dma_has_circular(void) +{ + return false; +} + #include <plat/dma.h> #endif /* __ASM_ARCH_IRQ_H */ diff --git a/sound/soc/s3c24xx/s3c24xx-pcm.c b/sound/soc/s3c24xx/s3c24xx-pcm.c index 5cbbdc8..1f35c6f 100644 --- a/sound/soc/s3c24xx/s3c24xx-pcm.c +++ b/sound/soc/s3c24xx/s3c24xx-pcm.c @@ -75,11 +75,19 @@ static void s3c24xx_pcm_enqueue(struct snd_pcm_substream *substream) { struct s3c24xx_runtime_data *prtd = substream->runtime->private_data; dma_addr_t pos = prtd->dma_pos; + unsigned int limit; int ret; pr_debug("Entered %s\n", __func__); - while (prtd->dma_loaded < prtd->dma_limit) { + if (s3c_dma_has_circular()) { + limit = (prtd->dma_end - prtd->dma_start) / prtd->dma_period; + } else + limit = prtd->dma_limit; + + pr_debug("%s: loaded %d, limit %d\n", __func__, prtd->dma_loaded, limit); + + while (prtd->dma_loaded < limit) { unsigned long len = prtd->dma_period; pr_debug("dma_loaded: %d\n", prtd->dma_loaded); @@ -123,7 +131,7 @@ static void s3c24xx_audio_buffdone(struct s3c2410_dma_chan *channel, snd_pcm_period_elapsed(substream); spin_lock(&prtd->lock); - if (prtd->state & ST_RUNNING) { + if (prtd->state & ST_RUNNING && !s3c_dma_has_circular()) { prtd->dma_loaded--; s3c24xx_pcm_enqueue(substream); } @@ -164,6 +172,11 @@ static int s3c24xx_pcm_hw_params(struct snd_pcm_substream *substream, printk(KERN_ERR "failed to get dma channel\n"); return ret; } + + /* use the circular buffering if we have it available. */ + if (s3c_dma_has_circular()) + s3c2410_dma_setflags(prtd->params->channel, + S3C2410_DMAF_CIRCULAR); } s3c2410_dma_set_buffdone_fn(prtd->params->channel, -- batman-adv

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[git] batman-adv branch, linux, updated. 31791c214a69092cb9feb5a6198a695a21fa0b24
by postmaster＠open-mesh.net 09 Nov '09

09 Nov '09

The following commit has been merged in the linux branch: commit b4719cd62707ca6f1a4d55b89066a7b9acc72347 Author: Ramax Lo <ramaxlo(a)gmail.com> Date: Tue Sep 22 00:04:16 2009 +0800 ARM: S3C24XX: Define a macro to avoid compilation error Define a macro to avoid the following error during kernel build process for platforms other than s3c2410: arch/arm/plat-s3c24xx/cpu.c:84: error: ‘s3c2410a_init’ undeclared here (not in a function) Signed-off-by: Ramax Lo <ramaxlo(a)gmail.com> Signed-off-by: Ben Dooks <ben-linux(a)fluff.org> diff --git a/arch/arm/plat-s3c24xx/include/plat/s3c2410.h b/arch/arm/plat-s3c24xx/include/plat/s3c2410.h index b6deeef..82ab4aa 100644 --- a/arch/arm/plat-s3c24xx/include/plat/s3c2410.h +++ b/arch/arm/plat-s3c24xx/include/plat/s3c2410.h @@ -27,6 +27,7 @@ extern void s3c2410_init_clocks(int xtal); #define s3c2410_init_uarts NULL #define s3c2410_map_io NULL #define s3c2410_init NULL +#define s3c2410a_init NULL #endif extern int s3c2410_baseclk_add(void); -- batman-adv

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[git] batman-adv branch, linux, updated. 31791c214a69092cb9feb5a6198a695a21fa0b24
by postmaster＠open-mesh.net 09 Nov '09

09 Nov '09

The following commit has been merged in the linux branch: commit 4a6cc4bd32e580722882115d4c8b964d732c11e4 Author: Jiri Kosina <jkosina(a)suse.cz> Date: Thu Oct 29 00:26:00 2009 +0900 sched: move rq_weight data array out of .percpu Commit 34d76c41 introduced percpu array update_shares_data, size of which being proportional to NR_CPUS. Unfortunately this blows up ia64 for large NR_CPUS configuration, as ia64 allows only 64k for .percpu section. Fix this by allocating this array dynamically and keep only pointer to it percpu. The per-cpu handling doesn't impose significant performance penalty on potentially contented path in tg_shares_up(). ... ffffffff8104337c: 65 48 8b 14 25 20 cd mov %gs:0xcd20,%rdx ffffffff81043383: 00 00 ffffffff81043385: 48 c7 c0 00 e1 00 00 mov $0xe100,%rax ffffffff8104338c: 48 c7 45 a0 00 00 00 movq $0x0,-0x60(%rbp) ffffffff81043393: 00 ffffffff81043394: 48 c7 45 a8 00 00 00 movq $0x0,-0x58(%rbp) ffffffff8104339b: 00 ffffffff8104339c: 48 01 d0 add %rdx,%rax ffffffff8104339f: 49 8d 94 24 08 01 00 lea 0x108(%r12),%rdx ffffffff810433a6: 00 ffffffff810433a7: b9 ff ff ff ff mov $0xffffffff,%ecx ffffffff810433ac: 48 89 45 b0 mov %rax,-0x50(%rbp) ffffffff810433b0: bb 00 04 00 00 mov $0x400,%ebx ffffffff810433b5: 48 89 55 c0 mov %rdx,-0x40(%rbp) ... After: ... ffffffff8104337c: 65 8b 04 25 28 cd 00 mov %gs:0xcd28,%eax ffffffff81043383: 00 ffffffff81043384: 48 98 cltq ffffffff81043386: 49 8d bc 24 08 01 00 lea 0x108(%r12),%rdi ffffffff8104338d: 00 ffffffff8104338e: 48 8b 15 d3 7f 76 00 mov 0x767fd3(%rip),%rdx # ffffffff817ab368 <update_shares_data> ffffffff81043395: 48 8b 34 c5 00 ee 6d mov -0x7e921200(,%rax,8),%rsi ffffffff8104339c: 81 ffffffff8104339d: 48 c7 45 a0 00 00 00 movq $0x0,-0x60(%rbp) ffffffff810433a4: 00 ffffffff810433a5: b9 ff ff ff ff mov $0xffffffff,%ecx ffffffff810433aa: 48 89 7d c0 mov %rdi,-0x40(%rbp) ffffffff810433ae: 48 c7 45 a8 00 00 00 movq $0x0,-0x58(%rbp) ffffffff810433b5: 00 ffffffff810433b6: bb 00 04 00 00 mov $0x400,%ebx ffffffff810433bb: 48 01 f2 add %rsi,%rdx ffffffff810433be: 48 89 55 b0 mov %rdx,-0x50(%rbp) ... Signed-off-by: Jiri Kosina <jkosina(a)suse.cz> Acked-by: Ingo Molnar <mingo(a)elte.hu> Signed-off-by: Tejun Heo <tj(a)kernel.org> diff --git a/kernel/sched.c b/kernel/sched.c index ee61f45..526d237 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -1563,11 +1563,7 @@ static unsigned long cpu_avg_load_per_task(int cpu) #ifdef CONFIG_FAIR_GROUP_SCHED -struct update_shares_data { - unsigned long rq_weight[NR_CPUS]; -}; - -static DEFINE_PER_CPU(struct update_shares_data, update_shares_data); +static __read_mostly unsigned long *update_shares_data; static void __set_se_shares(struct sched_entity *se, unsigned long shares); @@ -1577,12 +1573,12 @@ static void __set_se_shares(struct sched_entity *se, unsigned long shares); static void update_group_shares_cpu(struct task_group *tg, int cpu, unsigned long sd_shares, unsigned long sd_rq_weight, - struct update_shares_data *usd) + unsigned long *usd_rq_weight) { unsigned long shares, rq_weight; int boost = 0; - rq_weight = usd->rq_weight[cpu]; + rq_weight = usd_rq_weight[cpu]; if (!rq_weight) { boost = 1; rq_weight = NICE_0_LOAD; @@ -1617,7 +1613,7 @@ static void update_group_shares_cpu(struct task_group *tg, int cpu, static int tg_shares_up(struct task_group *tg, void *data) { unsigned long weight, rq_weight = 0, shares = 0; - struct update_shares_data *usd; + unsigned long *usd_rq_weight; struct sched_domain *sd = data; unsigned long flags; int i; @@ -1626,11 +1622,11 @@ static int tg_shares_up(struct task_group *tg, void *data) return 0; local_irq_save(flags); - usd = &__get_cpu_var(update_shares_data); + usd_rq_weight = per_cpu_ptr(update_shares_data, smp_processor_id()); for_each_cpu(i, sched_domain_span(sd)) { weight = tg->cfs_rq[i]->load.weight; - usd->rq_weight[i] = weight; + usd_rq_weight[i] = weight; /* * If there are currently no tasks on the cpu pretend there @@ -1651,7 +1647,7 @@ static int tg_shares_up(struct task_group *tg, void *data) shares = tg->shares; for_each_cpu(i, sched_domain_span(sd)) - update_group_shares_cpu(tg, i, shares, rq_weight, usd); + update_group_shares_cpu(tg, i, shares, rq_weight, usd_rq_weight); local_irq_restore(flags); @@ -9406,6 +9402,10 @@ void __init sched_init(void) #endif /* CONFIG_USER_SCHED */ #endif /* CONFIG_GROUP_SCHED */ +#if defined CONFIG_FAIR_GROUP_SCHED && defined CONFIG_SMP + update_shares_data = __alloc_percpu(nr_cpu_ids * sizeof(unsigned long), + __alignof__(unsigned long)); +#endif for_each_possible_cpu(i) { struct rq *rq; -- batman-adv

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commits November 2009