diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-msm/smd.c | 58 | ||||
| -rw-r--r-- | arch/arm/mach-msm/smd_private.h | 30 |
2 files changed, 50 insertions, 38 deletions
diff --git a/arch/arm/mach-msm/smd.c b/arch/arm/mach-msm/smd.c index f731ddeaa25..e33fd029fa3 100644 --- a/arch/arm/mach-msm/smd.c +++ b/arch/arm/mach-msm/smd.c @@ -49,16 +49,13 @@ static int msm_smd_debug_mask; struct shared_info { int ready; - unsigned state_apps; - unsigned state_modem; + unsigned state; }; -static unsigned dummy_state_apps; -static unsigned dummy_state_modem; +static unsigned dummy_state[SMSM_STATE_COUNT]; static struct shared_info smd_info = { - .state_apps = (unsigned) &dummy_state_apps, - .state_modem = (unsigned) &dummy_state_modem, + .state = (unsigned) &dummy_state, }; module_param_named(debug_mask, msm_smd_debug_mask, @@ -115,9 +112,14 @@ static void handle_modem_crash(void) extern int (*msm_check_for_modem_crash)(void); +uint32_t raw_smsm_get_state(enum smsm_state_item item) +{ + return readl(smd_info.state + item * 4); +} + static int check_for_modem_crash(void) { - if (readl(smd_info.state_modem) & SMSM_RESET) { + if (raw_smsm_get_state(SMSM_STATE_MODEM) & SMSM_RESET) { handle_modem_crash(); return -1; } @@ -978,8 +980,8 @@ static irqreturn_t smsm_irq_handler(int irq, void *data) spin_lock_irqsave(&smem_lock, flags); - apps = readl(smd_info.state_apps); - modm = readl(smd_info.state_modem); + apps = raw_smsm_get_state(SMSM_STATE_APPS); + modm = raw_smsm_get_state(SMSM_STATE_MODEM); if (msm_smd_debug_mask & MSM_SMSM_DEBUG) pr_info("<SM %08x %08x>\n", apps, modm); @@ -992,24 +994,26 @@ static irqreturn_t smsm_irq_handler(int irq, void *data) return IRQ_HANDLED; } -int smsm_change_state(uint32_t clear_mask, uint32_t set_mask) +int smsm_change_state(enum smsm_state_item item, + uint32_t clear_mask, uint32_t set_mask) { unsigned long flags; unsigned state; + unsigned addr = smd_info.state + item * 4; if (!smd_info.ready) return -EIO; spin_lock_irqsave(&smem_lock, flags); - if (readl(smd_info.state_modem) & SMSM_RESET) + if (raw_smsm_get_state(SMSM_STATE_MODEM) & SMSM_RESET) handle_modem_crash(); - state = (readl(smd_info.state_apps) & ~clear_mask) | set_mask; - writel(state, smd_info.state_apps); + state = (readl(addr) & ~clear_mask) | set_mask; + writel(state, addr); if (msm_smd_debug_mask & MSM_SMSM_DEBUG) - pr_info("smsm_change_state %x\n", state); + pr_info("smsm_change_state %d %x\n", item, state); notify_other_smsm(); spin_unlock_irqrestore(&smem_lock, flags); @@ -1017,16 +1021,16 @@ int smsm_change_state(uint32_t clear_mask, uint32_t set_mask) return 0; } -uint32_t smsm_get_state(void) +uint32_t smsm_get_state(enum smsm_state_item item) { unsigned long flags; uint32_t rv; spin_lock_irqsave(&smem_lock, flags); - rv = readl(smd_info.state_modem); + rv = readl(smd_info.state + item * 4); - if (rv & SMSM_RESET) + if (item == SMSM_STATE_MODEM && (rv & SMSM_RESET)) handle_modem_crash(); spin_unlock_irqrestore(&smem_lock, flags); @@ -1145,14 +1149,8 @@ int smd_core_init(void) unsigned size; void *state; state = smem_item(SMEM_SMSM_SHARED_STATE, &size); - if (size == SMSM_V1_SIZE) { - smd_info.state_apps = state + SMSM_V1_STATE_APPS; - smd_info.state_modem = state + SMSM_V1_STATE_MODEM; - break; - } - if (size == SMSM_V2_SIZE) { - smd_info.state_apps = state + SMSM_V2_STATE_APPS; - smd_info.state_modem = state + SMSM_V2_STATE_MODEM; + if (size == SMSM_V1_SIZE || size == SMSM_V2_SIZE) { + smd_info.state = (unsigned)state; break; } } @@ -1181,8 +1179,8 @@ int smd_core_init(void) do_smd_probe(); /* indicate that we're up and running */ - writel(SMSM_INIT | SMSM_SMDINIT | SMSM_RPCINIT, smd_info.state_apps); - notify_other_smsm(); + smsm_change_state(SMSM_STATE_APPS, + ~0, SMSM_INIT | SMSM_SMDINIT | SMSM_RPCINIT); pr_info("smd_core_init() done\n"); @@ -1227,13 +1225,13 @@ static int debug_read_stat(char *buf, int max) msg = smem_find(ID_DIAG_ERR_MSG, SZ_DIAG_ERR_MSG); - if (readl(smd_info.state_modem) & SMSM_RESET) + if (raw_smsm_get_state(SMSM_STATE_MODEM) & SMSM_RESET) i += scnprintf(buf + i, max - i, "smsm: ARM9 HAS CRASHED\n"); i += scnprintf(buf + i, max - i, "smsm: a9: %08x a11: %08x\n", - readl(smd_info.state_modem), - readl(smd_info.state_apps)); + raw_smsm_get_state(SMSM_STATE_MODEM), + raw_smsm_get_state(SMSM_STATE_APPS)); if (msg) { msg[SZ_DIAG_ERR_MSG - 1] = 0; diff --git a/arch/arm/mach-msm/smd_private.h b/arch/arm/mach-msm/smd_private.h index 732147c2f99..35e08359bbd 100644 --- a/arch/arm/mach-msm/smd_private.h +++ b/arch/arm/mach-msm/smd_private.h @@ -59,13 +59,7 @@ struct smem_shared }; #define SMSM_V1_SIZE (sizeof(unsigned) * 8) -#define SMSM_V1_STATE_APPS 0x0000 -#define SMSM_V1_STATE_MODEM 0x0004 -#define SMSM_V1_STATE_DSP 0x0008 - #define SMSM_V2_SIZE (sizeof(unsigned) * 4) -#define SMSM_V2_STATE_APPS 0x0004 -#define SMSM_V2_STATE_MODEM 0x000C struct smsm_interrupt_info { @@ -113,9 +107,29 @@ struct smsm_interrupt_info #define SMSM_WKUP_REASON_ALARM 0x00000010 #define SMSM_WKUP_REASON_RESET 0x00000020 +#ifndef CONFIG_ARCH_MSM_SCORPION +enum smsm_state_item { + SMSM_STATE_APPS = 1, + SMSM_STATE_MODEM = 3, + SMSM_STATE_COUNT, +}; +#else +enum smsm_state_item { + SMSM_STATE_APPS, + SMSM_STATE_MODEM, + SMSM_STATE_HEXAGON, + SMSM_STATE_APPS_DEM, + SMSM_STATE_MODEM_DEM, + SMSM_STATE_QDSP6_DEM, + SMSM_STATE_POWER_MASTER_DEM, + SMSM_STATE_TIME_MASTER_DEM, + SMSM_STATE_COUNT, +}; +#endif + void *smem_alloc(unsigned id, unsigned size); -int smsm_change_state(uint32_t clear_mask, uint32_t set_mask); -uint32_t smsm_get_state(void); +int smsm_change_state(enum smsm_state_item item, uint32_t clear_mask, uint32_t set_mask); +uint32_t smsm_get_state(enum smsm_state_item item); int smsm_set_sleep_duration(uint32_t delay); int smsm_set_interrupt_info(struct smsm_interrupt_info *info); void smsm_print_sleep_info(void); |