diff options
Diffstat (limited to 'drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c')
| -rw-r--r-- | drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c | 177 |
1 files changed, 7 insertions, 170 deletions
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c index 314ffac50bb8..411539f8ff8c 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c @@ -109,9 +109,7 @@ static const char *const resume_state_names[] = { * requested */ #define FORCE_SUSPEND_TIMEOUT_MS 200 - -static void suspend_timer_callback(unsigned long context); - +static void suspend_timer_callback(struct timer_list *t); typedef struct user_service_struct { VCHIQ_SERVICE_T *service; @@ -195,11 +193,6 @@ static const char *const ioctl_names[] = { vchiq_static_assert(ARRAY_SIZE(ioctl_names) == (VCHIQ_IOC_MAX + 1)); -#if defined(CONFIG_BCM2835_VCHIQ_SUPPORT_MEMDUMP) -static void -dump_phys_mem(void *virt_addr, u32 num_bytes); -#endif - /**************************************************************************** * * add_completion @@ -1161,20 +1154,6 @@ vchiq_ioctl(struct file *file, unsigned int cmd, unsigned long arg) args.handle, args.option, args.value); } break; -#if defined(CONFIG_BCM2835_VCHIQ_SUPPORT_MEMDUMP) - case VCHIQ_IOC_DUMP_PHYS_MEM: { - VCHIQ_DUMP_MEM_T args; - - if (copy_from_user - (&args, (const void __user *)arg, - sizeof(args)) != 0) { - ret = -EFAULT; - break; - } - dump_phys_mem(args.virt_addr, args.num_bytes); - } break; -#endif - case VCHIQ_IOC_LIB_VERSION: { unsigned int lib_version = (unsigned int)arg; @@ -1654,42 +1633,6 @@ vchiq_compat_ioctl_get_config(struct file *file, return vchiq_ioctl(file, VCHIQ_IOC_GET_CONFIG, (unsigned long)args); } -#if defined(CONFIG_BCM2835_VCHIQ_SUPPORT_MEMDUMP) - -struct vchiq_dump_mem32 { - compat_uptr_t virt_addr; - u32 num_bytes; -}; - -#define VCHIQ_IOC_DUMP_PHYS_MEM32 \ - _IOW(VCHIQ_IOC_MAGIC, 15, struct vchiq_dump_mem32) - -static long -vchiq_compat_ioctl_dump_phys_mem(struct file *file, - unsigned int cmd, - unsigned long arg) -{ - VCHIQ_DUMP_MEM_T *args; - struct vchiq_dump_mem32 args32; - - args = compat_alloc_user_space(sizeof(*args)); - if (!args) - return -EFAULT; - - if (copy_from_user(&args32, - (struct vchiq_dump_mem32 *)arg, - sizeof(args32))) - return -EFAULT; - - if (put_user(compat_ptr(args32.virt_addr), &args->virt_addr) || - put_user(args32.num_bytes, &args->num_bytes)) - return -EFAULT; - - return vchiq_ioctl(file, VCHIQ_IOC_DUMP_PHYS_MEM, (unsigned long)args); -} - -#endif - static long vchiq_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { @@ -1707,10 +1650,6 @@ vchiq_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) return vchiq_compat_ioctl_dequeue_message(file, cmd, arg); case VCHIQ_IOC_GET_CONFIG32: return vchiq_compat_ioctl_get_config(file, cmd, arg); -#if defined(CONFIG_BCM2835_VCHIQ_SUPPORT_MEMDUMP) - case VCHIQ_IOC_DUMP_PHYS_MEM32: - return vchiq_compat_ioctl_dump_phys_mem(file, cmd, arg); -#endif default: return vchiq_ioctl(file, cmd, arg); } @@ -2050,98 +1989,6 @@ vchiq_dump_platform_service_state(void *dump_context, VCHIQ_SERVICE_T *service) /**************************************************************************** * -* dump_user_mem -* -***************************************************************************/ - -#if defined(CONFIG_BCM2835_VCHIQ_SUPPORT_MEMDUMP) - -static void -dump_phys_mem(void *virt_addr, u32 num_bytes) -{ - int rc; - u8 *end_virt_addr = virt_addr + num_bytes; - int num_pages; - int offset; - int end_offset; - int page_idx; - int prev_idx; - struct page *page; - struct page **pages; - u8 *kmapped_virt_ptr; - - /* Align virt_addr and end_virt_addr to 16 byte boundaries. */ - - virt_addr = (void *)((unsigned long)virt_addr & ~0x0fuL); - end_virt_addr = (void *)(((unsigned long)end_virt_addr + 15uL) & - ~0x0fuL); - - offset = (int)(long)virt_addr & (PAGE_SIZE - 1); - end_offset = (int)(long)end_virt_addr & (PAGE_SIZE - 1); - - num_pages = DIV_ROUND_UP(offset + num_bytes, PAGE_SIZE); - - pages = kmalloc(sizeof(struct page *) * num_pages, GFP_KERNEL); - if (!pages) { - vchiq_log_error(vchiq_arm_log_level, - "Unable to allocation memory for %d pages\n", - num_pages); - return; - } - - down_read(¤t->mm->mmap_sem); - rc = get_user_pages( - (unsigned long)virt_addr, /* start */ - num_pages, /* len */ - 0, /* gup_flags */ - pages, /* pages (array of page pointers) */ - NULL); /* vmas */ - up_read(¤t->mm->mmap_sem); - - prev_idx = -1; - page = NULL; - - if (rc < 0) { - vchiq_log_error(vchiq_arm_log_level, - "Failed to get user pages: %d\n", rc); - goto out; - } - - while (offset < end_offset) { - int page_offset = offset % PAGE_SIZE; - - page_idx = offset / PAGE_SIZE; - if (page_idx != prev_idx) { - if (page != NULL) - kunmap(page); - page = pages[page_idx]; - kmapped_virt_ptr = kmap(page); - prev_idx = page_idx; - } - - if (vchiq_arm_log_level >= VCHIQ_LOG_TRACE) - vchiq_log_dump_mem("ph", - (u32)(unsigned long)&kmapped_virt_ptr[ - page_offset], - &kmapped_virt_ptr[page_offset], 16); - - offset += 16; - } - -out: - if (page != NULL) - kunmap(page); - - for (page_idx = 0; page_idx < num_pages; page_idx++) - put_page(pages[page_idx]); - - kfree(pages); -} - -#endif - -/**************************************************************************** -* * vchiq_read * ***************************************************************************/ @@ -2307,8 +2154,6 @@ exit: return 0; } - - VCHIQ_STATUS_T vchiq_arm_init_state(VCHIQ_STATE_T *state, VCHIQ_ARM_STATE_T *arm_state) { @@ -2339,8 +2184,9 @@ vchiq_arm_init_state(VCHIQ_STATE_T *state, VCHIQ_ARM_STATE_T *arm_state) arm_state->suspend_timer_timeout = SUSPEND_TIMER_TIMEOUT_MS; arm_state->suspend_timer_running = 0; - setup_timer(&arm_state->suspend_timer, suspend_timer_callback, - (unsigned long)(state)); + arm_state->state = state; + timer_setup(&arm_state->suspend_timer, suspend_timer_callback, + 0); arm_state->first_connect = 0; @@ -2469,7 +2315,6 @@ set_resume_state(VCHIQ_ARM_STATE_T *arm_state, } } - /* should be called with the write lock held */ inline void start_suspend_timer(VCHIQ_ARM_STATE_T *arm_state) @@ -2589,7 +2434,6 @@ vchiq_arm_vcsuspend(VCHIQ_STATE_T *state) vchiq_log_trace(vchiq_susp_log_level, "%s", __func__); status = VCHIQ_SUCCESS; - switch (arm_state->vc_suspend_state) { case VC_SUSPEND_REQUESTED: vchiq_log_info(vchiq_susp_log_level, "%s: suspend already " @@ -2654,7 +2498,6 @@ out: return; } - static void output_timeout_error(VCHIQ_STATE_T *state) { @@ -2834,7 +2677,6 @@ out: return; } - int vchiq_arm_allow_resume(VCHIQ_STATE_T *state) { @@ -2996,7 +2838,6 @@ vchiq_use_internal(VCHIQ_STATE_T *state, VCHIQ_SERVICE_T *service, "%s %s count %d, state count %d", __func__, entity, *entity_uc, local_uc); - write_unlock_bh(&arm_state->susp_res_lock); /* Completion is in a done state when we're not suspended, so this won't @@ -3177,18 +3018,14 @@ vchiq_instance_set_trace(VCHIQ_INSTANCE_T instance, int trace) instance->trace = (trace != 0); } -static void suspend_timer_callback(unsigned long context) +static void suspend_timer_callback(struct timer_list *t) { - VCHIQ_STATE_T *state = (VCHIQ_STATE_T *)context; - VCHIQ_ARM_STATE_T *arm_state = vchiq_platform_get_arm_state(state); + VCHIQ_ARM_STATE_T *arm_state = from_timer(arm_state, t, suspend_timer); + VCHIQ_STATE_T *state = arm_state->state; - if (!arm_state) - goto out; vchiq_log_info(vchiq_susp_log_level, "%s - suspend timer expired - check suspend", __func__); vchiq_check_suspend(state); -out: - return; } VCHIQ_STATUS_T |