diff options
Diffstat (limited to 'drivers/gpu/arm/t6xx/kbase/src/linux/mali_kbase_core_linux.c')
| -rwxr-xr-x | drivers/gpu/arm/t6xx/kbase/src/linux/mali_kbase_core_linux.c | 2921 |
1 files changed, 2921 insertions, 0 deletions
diff --git a/drivers/gpu/arm/t6xx/kbase/src/linux/mali_kbase_core_linux.c b/drivers/gpu/arm/t6xx/kbase/src/linux/mali_kbase_core_linux.c new file mode 100755 index 00000000000..ed3da683a87 --- /dev/null +++ b/drivers/gpu/arm/t6xx/kbase/src/linux/mali_kbase_core_linux.c @@ -0,0 +1,2921 @@ +/* + * + * (C) COPYRIGHT 2010-2013 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the + * GNU General Public License version 2 as published by the Free Software + * Foundation, and any use by you of this program is subject to the terms + * of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained + * from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + */ + + + +/** + * @file mali_kbase_core_linux.c + * Base kernel driver init. + */ + +#include <kbase/src/common/mali_kbase.h> +#include <kbase/src/common/mali_kbase_uku.h> +#include <kbase/src/common/mali_midg_regmap.h> +#include <kbase/src/linux/mali_kbase_mem_linux.h> +#include <kbase/src/linux/mali_kbase_config_linux.h> +#ifdef CONFIG_MALI_NO_MALI +#include "mali_kbase_model_linux.h" +#endif /* CONFIG_MALI_NO_MALI */ + +#ifdef CONFIG_KDS +#include <linux/kds.h> +#include <linux/anon_inodes.h> +#include <linux/syscalls.h> +#endif /* CONFIG_KDS */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/poll.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/platform_device.h> +#include <linux/miscdevice.h> +#include <linux/list.h> +#include <linux/semaphore.h> +#include <linux/fs.h> +#include <linux/uaccess.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/compat.h> /* is_compat_task */ +#include <kbase/src/common/mali_kbase_8401_workaround.h> +#include <kbase/src/common/mali_kbase_hw.h> +#ifdef CONFIG_SYNC +#include <kbase/src/linux/mali_kbase_sync.h> +#endif /* CONFIG_SYNC */ + +#ifdef CONFIG_MACH_MANTA +#include <plat/devs.h> +#endif + +#define JOB_IRQ_TAG 0 +#define MMU_IRQ_TAG 1 +#define GPU_IRQ_TAG 2 + +struct kbase_irq_table { + u32 tag; + irq_handler_t handler; +}; +#if MALI_UNIT_TEST +kbase_exported_test_data shared_kernel_test_data; +EXPORT_SYMBOL(shared_kernel_test_data); +#endif /* MALI_UNIT_TEST */ + +#define KBASE_DRV_NAME "mali" + +static const char kbase_drv_name[] = KBASE_DRV_NAME; + +static int kbase_dev_nr; + +static DEFINE_SEMAPHORE(kbase_dev_list_lock); +static LIST_HEAD(kbase_dev_list); + +KBASE_EXPORT_TEST_API(kbase_dev_list_lock) +KBASE_EXPORT_TEST_API(kbase_dev_list) +#define KERNEL_SIDE_DDK_VERSION_STRING "K:" MALI_RELEASE_NAME "(GPL)" +static INLINE void __compile_time_asserts(void) +{ + CSTD_COMPILE_TIME_ASSERT(sizeof(KERNEL_SIDE_DDK_VERSION_STRING) <= KBASE_GET_VERSION_BUFFER_SIZE); +} + +#ifdef CONFIG_KDS + +typedef struct kbasep_kds_resource_set_file_data { + struct kds_resource_set *lock; +} kbasep_kds_resource_set_file_data; + +static int kds_resource_release(struct inode *inode, struct file *file); + +static const struct file_operations kds_resource_fops = { + .release = kds_resource_release +}; + +typedef struct kbase_kds_resource_list_data { + struct kds_resource **kds_resources; + unsigned long *kds_access_bitmap; + int num_elems; +} kbase_kds_resource_list_data; + +static int kds_resource_release(struct inode *inode, struct file *file) +{ + struct kbasep_kds_resource_set_file_data *data; + + data = (struct kbasep_kds_resource_set_file_data *)file->private_data; + if (NULL != data) { + if (NULL != data->lock) + kds_resource_set_release(&data->lock); + + kfree(data); + } + return 0; +} + +mali_error kbasep_kds_allocate_resource_list_data(kbase_context *kctx, base_external_resource *ext_res, int num_elems, kbase_kds_resource_list_data *resources_list) +{ + base_external_resource *res = ext_res; + int res_id; + + /* assume we have to wait for all */ + + KBASE_DEBUG_ASSERT(0 != num_elems); + resources_list->kds_resources = kmalloc(sizeof(struct kds_resource *) * num_elems, GFP_KERNEL); + + if (NULL == resources_list->kds_resources) + return MALI_ERROR_OUT_OF_MEMORY; + + KBASE_DEBUG_ASSERT(0 != num_elems); + resources_list->kds_access_bitmap = kzalloc(sizeof(unsigned long) * ((num_elems + BITS_PER_LONG - 1) / BITS_PER_LONG), GFP_KERNEL); + + if (NULL == resources_list->kds_access_bitmap) { + kfree(resources_list->kds_access_bitmap); + return MALI_ERROR_OUT_OF_MEMORY; + } + + for (res_id = 0; res_id < num_elems; res_id++, res++) { + int exclusive; + kbase_va_region *reg; + struct kds_resource *kds_res = NULL; + + exclusive = res->ext_resource & BASE_EXT_RES_ACCESS_EXCLUSIVE; + reg = kbase_region_tracker_find_region_enclosing_address(kctx, res->ext_resource & ~BASE_EXT_RES_ACCESS_EXCLUSIVE); + + /* did we find a matching region object? */ + if (NULL == reg) + break; + + switch (reg->imported_type) { +#if defined(CONFIG_UMP) && defined(CONFIG_KDS) + case BASE_TMEM_IMPORT_TYPE_UMP: + kds_res = ump_dd_kds_resource_get(reg->imported_metadata.ump_handle); + break; +#endif /* defined(CONFIG_UMP) && defined(CONFIG_KDS) */ + default: + break; + } + + /* no kds resource for the region ? */ + if (!kds_res) + break; + + resources_list->kds_resources[res_id] = kds_res; + + if (exclusive) + set_bit(res_id, resources_list->kds_access_bitmap); + } + + /* did the loop run to completion? */ + if (res_id == num_elems) + return MALI_ERROR_NONE; + + /* Clean up as the resource list is not valid. */ + kfree(resources_list->kds_resources); + kfree(resources_list->kds_access_bitmap); + + return MALI_ERROR_FUNCTION_FAILED; +} + +mali_bool kbasep_validate_kbase_pointer(kbase_pointer *p) +{ +#ifdef CONFIG_COMPAT + if (is_compat_task()) { + if (p->compat_value == 0) + return MALI_FALSE; + } else { +#endif /* CONFIG_COMPAT */ + if (NULL == p->value) + return MALI_FALSE; +#ifdef CONFIG_COMPAT + } +#endif /* CONFIG_COMPAT */ + return MALI_TRUE; +} + +mali_error kbase_external_buffer_lock(kbase_context *kctx, kbase_uk_ext_buff_kds_data *args, u32 args_size) +{ + base_external_resource *ext_res_copy; + size_t ext_resource_size; + mali_error return_error = MALI_ERROR_FUNCTION_FAILED; + int fd; + + if (args_size != sizeof(kbase_uk_ext_buff_kds_data)) + return MALI_ERROR_FUNCTION_FAILED; + + /* Check user space has provided valid data */ + if (!kbasep_validate_kbase_pointer(&args->external_resource) || !kbasep_validate_kbase_pointer(&args->file_descriptor) || (0 == args->num_res) || (args->num_res > KBASE_MAXIMUM_EXT_RESOURCES)) + return MALI_ERROR_FUNCTION_FAILED; + + ext_resource_size = sizeof(base_external_resource) * args->num_res; + + KBASE_DEBUG_ASSERT(0 != ext_resource_size); + ext_res_copy = kmalloc(ext_resource_size, GFP_KERNEL); + + if (NULL != ext_res_copy) { + base_external_resource *__user ext_res_user; + int *__user file_descriptor_user; +#ifdef CONFIG_COMPAT + if (is_compat_task()) { + ext_res_user = args->external_resource.compat_value; + file_descriptor_user = args->file_descriptor.compat_value; + } else { +#endif /* CONFIG_COMPAT */ + ext_res_user = args->external_resource.value; + file_descriptor_user = args->file_descriptor.value; +#ifdef CONFIG_COMPAT + } +#endif /* CONFIG_COMPAT */ + + /* Copy the external resources to lock from user space */ + if (0 == copy_from_user(ext_res_copy, ext_res_user, ext_resource_size)) { + kbasep_kds_resource_set_file_data *fdata; + + /* Allocate data to be stored in the file */ + fdata = kmalloc(sizeof(kbasep_kds_resource_set_file_data), GFP_KERNEL); + + if (NULL != fdata) { + kbase_kds_resource_list_data resource_list_data; + /* Parse given elements and create resource and access lists */ + return_error = kbasep_kds_allocate_resource_list_data(kctx, ext_res_copy, args->num_res, &resource_list_data); + if (MALI_ERROR_NONE == return_error) { + long err; + + fdata->lock = NULL; + + fd = anon_inode_getfd("kds_ext", &kds_resource_fops, fdata, 0); + + err = copy_to_user(file_descriptor_user, &fd, sizeof(fd)); + + /* If the file descriptor was valid and we successfully copied it to user space, then we + * can try and lock the requested kds resources. + */ + if ((fd >= 0) && (0 == err)) { + struct kds_resource_set *lock; + + lock = kds_waitall(args->num_res, resource_list_data.kds_access_bitmap, resource_list_data.kds_resources, KDS_WAIT_BLOCKING); + + if (IS_ERR_OR_NULL(lock)) { + return_error = MALI_ERROR_FUNCTION_FAILED; + } else { + return_error = MALI_ERROR_NONE; + fdata->lock = lock; + } + } else { + return_error = MALI_ERROR_FUNCTION_FAILED; + } + + kfree(resource_list_data.kds_resources); + kfree(resource_list_data.kds_access_bitmap); + } + + if (MALI_ERROR_NONE != return_error) { + /* If the file was opened successfully then close it which will clean up + * the file data, otherwise we clean up the file data ourself. */ + if (fd >= 0) + sys_close(fd); + else + kfree(fdata); + } + } else { + return_error = MALI_ERROR_OUT_OF_MEMORY; + } + } + kfree(ext_res_copy); + } + return return_error; +} +#endif /* CONFIG_KDS */ + +static mali_error kbase_dispatch(kbase_context *kctx, void * const args, u32 args_size) +{ + struct kbase_device *kbdev; + uk_header *ukh = args; + u32 id; + + KBASE_DEBUG_ASSERT(ukh != NULL); + + kbdev = kctx->kbdev; + id = ukh->id; + ukh->ret = MALI_ERROR_NONE; /* Be optimistic */ + + if (UKP_FUNC_ID_CHECK_VERSION == id) { + if (args_size == sizeof(uku_version_check_args)) { + uku_version_check_args *version_check = (uku_version_check_args *)args; + + version_check->major = BASE_UK_VERSION_MAJOR; + version_check->minor = BASE_UK_VERSION_MINOR; + + ukh->ret = MALI_ERROR_NONE; + } else { + ukh->ret = MALI_ERROR_FUNCTION_FAILED; + } + return MALI_ERROR_NONE; + } + + + if (!atomic_read(&kctx->setup_complete)) { + /* setup pending, try to signal that we'll do the setup */ + if (atomic_cmpxchg(&kctx->setup_in_progress, 0, 1)) { + /* setup was already in progress, err this call */ + return MALI_ERROR_FUNCTION_FAILED; + } + + /* we're the one doing setup */ + + /* is it the only call we accept? */ + if (id == KBASE_FUNC_SET_FLAGS) { + kbase_uk_set_flags *kbase_set_flags = (kbase_uk_set_flags *) args; + + if (sizeof(*kbase_set_flags) != args_size) { + /* not matching the expected call, stay stuck in setup mode */ + goto bad_size; + } + + if (MALI_ERROR_NONE != kbase_context_set_create_flags(kctx, kbase_set_flags->create_flags)) { + ukh->ret = MALI_ERROR_FUNCTION_FAILED; + /* bad flags, will stay stuck in setup mode */ + return MALI_ERROR_NONE; + } else { + /* we've done the setup, all OK */ + atomic_set(&kctx->setup_complete, 1); + return MALI_ERROR_NONE; + } + } else { + /* unexpected call, will stay stuck in setup mode */ + return MALI_ERROR_FUNCTION_FAILED; + } + } + + /* setup complete, perform normal operation */ + switch (id) { + case KBASE_FUNC_TMEM_ALLOC: + { + kbase_uk_tmem_alloc *tmem = args; + struct kbase_va_region *reg; + + if (sizeof(*tmem) != args_size) + goto bad_size; + + reg = kbase_tmem_alloc(kctx, tmem->vsize, tmem->psize, tmem->extent, tmem->flags, tmem->is_growable); + if (reg) + tmem->gpu_addr = reg->start_pfn << PAGE_SHIFT; + else + ukh->ret = MALI_ERROR_FUNCTION_FAILED; + break; + } + + case KBASE_FUNC_TMEM_IMPORT: + { + kbase_uk_tmem_import *tmem_import = args; + struct kbase_va_region *reg; + int *__user phandle; + int handle; + + if (sizeof(*tmem_import) != args_size) + goto bad_size; +#ifdef CONFIG_COMPAT + if (is_compat_task()) { + phandle = tmem_import->phandle.compat_value; + } else { +#endif /* CONFIG_COMPAT */ + phandle = tmem_import->phandle.value; +#ifdef CONFIG_COMPAT + } +#endif /* CONFIG_COMPAT */ + + /* code should be in kbase_tmem_import and its helpers, but uk dropped its get_user abstraction */ + switch (tmem_import->type) { +#ifdef CONFIG_UMP + case BASE_TMEM_IMPORT_TYPE_UMP: + get_user(handle, phandle); + break; +#endif /* CONFIG_UMP */ + case BASE_TMEM_IMPORT_TYPE_UMM: + get_user(handle, phandle); + break; + default: + goto bad_type; + break; + } + + reg = kbase_tmem_import(kctx, tmem_import->type, handle, &tmem_import->pages); + + if (reg) { + tmem_import->gpu_addr = reg->start_pfn << PAGE_SHIFT; + } else { + bad_type: + ukh->ret = MALI_ERROR_FUNCTION_FAILED; + } + break; + } + case KBASE_FUNC_PMEM_ALLOC: + { + kbase_uk_pmem_alloc *pmem = args; + struct kbase_va_region *reg; + + if (sizeof(*pmem) != args_size) + goto bad_size; + + reg = kbase_pmem_alloc(kctx, pmem->vsize, pmem->flags, &pmem->cookie); + if (!reg) + ukh->ret = MALI_ERROR_FUNCTION_FAILED; + break; + } + + case KBASE_FUNC_MEM_FREE: + { + kbase_uk_mem_free *mem = args; + + if (sizeof(*mem) != args_size) + goto bad_size; + + if ((mem->gpu_addr & ~PAGE_MASK) && (mem->gpu_addr >= PAGE_SIZE)) { + KBASE_DEBUG_PRINT_WARN(KBASE_MEM, "kbase_dispatch case KBASE_FUNC_MEM_FREE: mem->gpu_addr: passed parameter is invalid"); + ukh->ret = MALI_ERROR_FUNCTION_FAILED; + break; + } + + if (kbase_mem_free(kctx, mem->gpu_addr)) + ukh->ret = MALI_ERROR_FUNCTION_FAILED; + break; + } + + case KBASE_FUNC_JOB_SUBMIT: + { + kbase_uk_job_submit *job = args; + + if (sizeof(*job) != args_size) + goto bad_size; + + if (MALI_ERROR_NONE != kbase_jd_submit(kctx, job)) + ukh->ret = MALI_ERROR_FUNCTION_FAILED; + break; + } + + case KBASE_FUNC_SYNC: + { + kbase_uk_sync_now *sn = args; + + if (sizeof(*sn) != args_size) + goto bad_size; + + if (sn->sset.basep_sset.mem_handle & ~PAGE_MASK) { + KBASE_DEBUG_PRINT_WARN(KBASE_MEM, "kbase_dispatch case KBASE_FUNC_SYNC: sn->sset.basep_sset.mem_handle: passed parameter is invalid"); + ukh->ret = MALI_ERROR_FUNCTION_FAILED; + break; + } + + if (MALI_ERROR_NONE != kbase_sync_now(kctx, &sn->sset)) + ukh->ret = MALI_ERROR_FUNCTION_FAILED; + break; + } + + case KBASE_FUNC_POST_TERM: + { + kbase_event_close(kctx); + break; + } + + case KBASE_FUNC_HWCNT_SETUP: + { + kbase_uk_hwcnt_setup *setup = args; + + if (sizeof(*setup) != args_size) + goto bad_size; + + if (MALI_ERROR_NONE != kbase_instr_hwcnt_setup(kctx, setup)) + ukh->ret = MALI_ERROR_FUNCTION_FAILED; + break; + } + + case KBASE_FUNC_HWCNT_DUMP: + { + /* args ignored */ + if (MALI_ERROR_NONE != kbase_instr_hwcnt_dump(kctx)) + ukh->ret = MALI_ERROR_FUNCTION_FAILED; + break; + } + + case KBASE_FUNC_HWCNT_CLEAR: + { + /* args ignored */ + if (MALI_ERROR_NONE != kbase_instr_hwcnt_clear(kctx)) + ukh->ret = MALI_ERROR_FUNCTION_FAILED; + break; + } + + case KBASE_FUNC_CPU_PROPS_REG_DUMP: + { + kbase_uk_cpuprops *setup = args; + + if (sizeof(*setup) != args_size) + goto bad_size; + + if (MALI_ERROR_NONE != kbase_cpuprops_uk_get_props(kctx, setup)) + ukh->ret = MALI_ERROR_FUNCTION_FAILED; + break; + } + + case KBASE_FUNC_GPU_PROPS_REG_DUMP: + { + kbase_uk_gpuprops *setup = args; + + if (sizeof(*setup) != args_size) + goto bad_size; + + if (MALI_ERROR_NONE != kbase_gpuprops_uk_get_props(kctx, setup)) + ukh->ret = MALI_ERROR_FUNCTION_FAILED; + break; + } + + case KBASE_FUNC_TMEM_GETSIZE: + { + kbase_uk_tmem_get_size *getsize = args; + if (sizeof(*getsize) != args_size) + goto bad_size; + + if (getsize->gpu_addr & ~PAGE_MASK) { + KBASE_DEBUG_PRINT_WARN(KBASE_MEM, "kbase_dispatch case KBASE_FUNC_TMEM_GETSIZE: getsize->gpu_addr: passed parameter is invalid"); + ukh->ret = MALI_ERROR_FUNCTION_FAILED; + break; + } + + ukh->ret = kbase_tmem_get_size(kctx, getsize->gpu_addr, &getsize->actual_size); + break; + } + break; + + case KBASE_FUNC_TMEM_SETSIZE: + { + kbase_uk_tmem_set_size *set_size = args; + + if (sizeof(*set_size) != args_size) + goto bad_size; + + if (set_size->gpu_addr & ~PAGE_MASK) { + KBASE_DEBUG_PRINT_WARN(KBASE_MEM, "kbase_dispatch case KBASE_FUNC_TMEM_SETSIZE: set_size->gpu_addr: passed parameter is invalid"); + ukh->ret = MALI_ERROR_FUNCTION_FAILED; + break; + } + + ukh->ret = kbase_tmem_set_size(kctx, set_size->gpu_addr, set_size->size, &set_size->actual_size, &set_size->result_subcode); + break; + } + + case KBASE_FUNC_TMEM_RESIZE: + { + kbase_uk_tmem_resize *resize = args; + if (sizeof(*resize) != args_size) + goto bad_size; + + if (resize->gpu_addr & ~PAGE_MASK) { + KBASE_DEBUG_PRINT_WARN(KBASE_MEM, "kbase_dispatch case KBASE_FUNC_TMEM_RESIZE: resize->gpu_addr: passed parameter is invalid"); + ukh->ret = MALI_ERROR_FUNCTION_FAILED; + break; + } + + ukh->ret = kbase_tmem_resize(kctx, resize->gpu_addr, resize->delta, &resize->actual_size, &resize->result_subcode); + break; + } + + case KBASE_FUNC_TMEM_SET_ATTRIBUTES: + { + kbase_uk_tmem_set_attributes* set_attributes = args; + + if (sizeof(*set_attributes) != args_size) + goto bad_size; + + if (set_attributes->gpu_addr & ~PAGE_MASK) { + KBASE_DEBUG_PRINT_WARN(KBASE_MEM, "kbase_dispatch case KBASE_FUNC_TMEM_SET_ATTRIBUTES: set_attributes->gpu_addr: passed parameter is invalid"); + ukh->ret = MALI_ERROR_FUNCTION_FAILED; + break; + } + ukh->ret = kbase_tmem_set_attributes(kctx, set_attributes->gpu_addr, set_attributes->attributes); + break; + + } + + case KBASE_FUNC_TMEM_GET_ATTRIBUTES: + { + kbase_uk_tmem_get_attributes *get_attributes = args; + + if (sizeof(*get_attributes) != args_size) + goto bad_size; + + if (get_attributes->gpu_addr & ~PAGE_MASK) { + KBASE_DEBUG_PRINT_WARN(KBASE_MEM, "kbase_dispatch case KBASE_FUNC_TMEM_GET_ATTRIBUTES: get_attributes->gpu_addr: passed parameter is invalid"); + ukh->ret = MALI_ERROR_FUNCTION_FAILED; + break; + } + + ukh->ret = kbase_tmem_get_attributes(kctx, get_attributes->gpu_addr, &get_attributes->attributes); + break; + + } + + case KBASE_FUNC_FIND_CPU_MAPPING: + { + kbase_uk_find_cpu_mapping *find = args; + struct kbase_cpu_mapping *map; + + if (sizeof(*find) != args_size) + goto bad_size; + + if (find->gpu_addr & ~PAGE_MASK) { + KBASE_DEBUG_PRINT_WARN(KBASE_MEM, "kbase_dispatch case KBASE_FUNC_FIND_CPU_MAPPING: find->gpu_addr: passed parameter is invalid"); + goto out_bad; + } + + KBASE_DEBUG_ASSERT(find != NULL); + if (find->size > SIZE_MAX || find->cpu_addr > ULONG_MAX) + map = NULL; + else + map = kbasep_find_enclosing_cpu_mapping(kctx, find->gpu_addr, (void *)(uintptr_t) find->cpu_addr, (size_t) find->size); + + if (NULL != map) { + find->uaddr = PTR_TO_U64(map->uaddr); + find->nr_pages = map->nr_pages; + find->page_off = map->page_off; + } else { + ukh->ret = MALI_ERROR_FUNCTION_FAILED; + } + break; + } + case KBASE_FUNC_GET_VERSION: + { + kbase_uk_get_ddk_version *get_version = (kbase_uk_get_ddk_version *) args; + + if (sizeof(*get_version) != args_size) + goto bad_size; + + /* version buffer size check is made in compile time assert */ + memcpy(get_version->version_buffer, KERNEL_SIDE_DDK_VERSION_STRING, sizeof(KERNEL_SIDE_DDK_VERSION_STRING)); + get_version->version_string_size = sizeof(KERNEL_SIDE_DDK_VERSION_STRING); + break; + } + + case KBASE_FUNC_STREAM_CREATE: + { +#ifdef CONFIG_SYNC + kbase_uk_stream_create *screate = (kbase_uk_stream_create *) args; + + if (sizeof(*screate) != args_size) + goto bad_size; + + if (strnlen(screate->name, sizeof(screate->name)) >= sizeof(screate->name)) { + /* not NULL terminated */ + ukh->ret = MALI_ERROR_FUNCTION_FAILED; + break; + } + + ukh->ret = kbase_stream_create(screate->name, &screate->fd); +#else /* CONFIG_SYNC */ + ukh->ret = MALI_ERROR_FUNCTION_FAILED; +#endif /* CONFIG_SYNC */ + break; + } + case KBASE_FUNC_FENCE_VALIDATE: + { +#ifdef CONFIG_SYNC + kbase_uk_fence_validate *fence_validate = (kbase_uk_fence_validate *) args; + if (sizeof(*fence_validate) != args_size) + goto bad_size; + + ukh->ret = kbase_fence_validate(fence_validate->fd); +#endif /* CONFIG_SYNC */ + break; + } + + case KBASE_FUNC_EXT_BUFFER_LOCK: + { +#ifdef CONFIG_KDS + ukh->ret = kbase_external_buffer_lock(kctx, (kbase_uk_ext_buff_kds_data *) args, args_size); +#endif /* CONFIG_KDS */ + break; + } + + case KBASE_FUNC_SET_TEST_DATA: + { +#if MALI_UNIT_TEST + kbase_uk_set_test_data *set_data = args; + + shared_kernel_test_data = set_data->test_data; + shared_kernel_test_data.kctx.value = kctx; + shared_kernel_test_data.mm.value = (void *)current->mm; + ukh->ret = MALI_ERROR_NONE; +#endif /* MALI_UNIT_TEST */ + break; + } + + case KBASE_FUNC_INJECT_ERROR: + { +#ifdef CONFIG_MALI_ERROR_INJECT + unsigned long flags; + kbase_error_params params = ((kbase_uk_error_params *) args)->params; + /*mutex lock */ + spin_lock_irqsave(&kbdev->osdev.reg_op_lock, flags); + ukh->ret = job_atom_inject_error(¶ms); + spin_unlock_irqrestore(&kbdev->osdev.reg_op_lock, flags); + /*mutex unlock */ +#endif /* CONFIG_MALI_ERROR_INJECT */ + break; + } + + case KBASE_FUNC_MODEL_CONTROL: + { +#ifdef CONFIG_MALI_NO_MALI + unsigned long flags; + kbase_model_control_params params = ((kbase_uk_model_control_params *) args)->params; + /*mutex lock */ + spin_lock_irqsave(&kbdev->osdev.reg_op_lock, flags); + ukh->ret = midg_model_control(kbdev->osdev.model, ¶ms); + spin_unlock_irqrestore(&kbdev->osdev.reg_op_lock, flags); + /*mutex unlock */ +#endif /* CONFIG_MALI_NO_MALI */ + break; + } + + case KBASE_FUNC_KEEP_GPU_POWERED: + { + kbase_uk_keep_gpu_powered *kgp = (kbase_uk_keep_gpu_powered *) args; + /* A suspend won't happen here, because we're in a syscall from a + * userspace thread. + * + * Nevertheless, we'd get the wrong pm_context_active/idle counting + * here if a suspend did happen, so let's assert it won't: */ + KBASE_DEBUG_ASSERT(!kbase_pm_is_suspending(kbdev)); + + if (kgp->enabled && !kctx->keep_gpu_powered) { + kbase_pm_context_active(kbdev); + atomic_inc(&kbdev->keep_gpu_powered_count); + kctx->keep_gpu_powered = MALI_TRUE; + } else if (!kgp->enabled && kctx->keep_gpu_powered) { + atomic_dec(&kbdev->keep_gpu_powered_count); + kbase_pm_context_idle(kbdev); + kctx->keep_gpu_powered = MALI_FALSE; + } + + break; + } + default: + dev_err(kbdev->osdev.dev, "unknown ioctl %u", id); + goto out_bad; + } + + return MALI_ERROR_NONE; + + bad_size: + dev_err(kbdev->osdev.dev, "Wrong syscall size (%d) for %08x\n", args_size, id); + out_bad: + return MALI_ERROR_FUNCTION_FAILED; +} + +static struct kbase_device *to_kbase_device(struct device *dev) +{ + return dev_get_drvdata(dev); +} + +/* Find a particular kbase device (as specified by minor number), or find the "first" device if -1 is specified */ +struct kbase_device *kbase_find_device(int minor) +{ + struct kbase_device *kbdev = NULL; + struct list_head *entry; + + down(&kbase_dev_list_lock); + list_for_each(entry, &kbase_dev_list) { + struct kbase_device *tmp; + + tmp = list_entry(entry, struct kbase_device, osdev.entry); + if (tmp->osdev.mdev.minor == minor || minor == -1) { + kbdev = tmp; + get_device(kbdev->osdev.dev); + break; + } + } + up(&kbase_dev_list_lock); + + return kbdev; +} +EXPORT_SYMBOL(kbase_find_device); + +void kbase_release_device(struct kbase_device *kbdev) +{ + put_device(kbdev->osdev.dev); +} +EXPORT_SYMBOL(kbase_release_device); + +static int kbase_open(struct inode *inode, struct file *filp) +{ + struct kbase_device *kbdev = NULL; + kbase_context *kctx; + int ret = 0; + + kbdev = kbase_find_device(iminor(inode)); + + if (!kbdev) + return -ENODEV; + + kctx = kbase_create_context(kbdev); + if (!kctx) { + ret = -ENOMEM; + goto out; + } + + init_waitqueue_head(&kctx->osctx.event_queue); + filp->private_data = kctx; + + dev_dbg(kbdev->osdev.dev, "created base context\n"); + + { + kbasep_kctx_list_element *element; + + element = kzalloc(sizeof(kbasep_kctx_list_element), GFP_KERNEL); + if (element) { + mutex_lock(&kbdev->kctx_list_lock); + element->kctx = kctx; + list_add(&element->link, &kbdev->kctx_list); + mutex_unlock(&kbdev->kctx_list_lock); + } else { + /* we don't treat this as a fail - just warn about it */ + printk(KERN_WARNING KBASE_DRV_NAME "couldn't add kctx to kctx_list\n"); + } + } + return 0; + + out: + kbase_release_device(kbdev); + return ret; +} + +static int kbase_release(struct inode *inode, struct file *filp) +{ + kbase_context *kctx = filp->private_data; + struct kbase_device *kbdev = kctx->kbdev; + kbasep_kctx_list_element *element, *tmp; + mali_bool found_element = MALI_FALSE; + + mutex_lock(&kbdev->kctx_list_lock); + list_for_each_entry_safe(element, tmp, &kbdev->kctx_list, link) { + if (element->kctx == kctx) { + list_del(&element->link); + kfree(element); + found_element = MALI_TRUE; + } + } + mutex_unlock(&kbdev->kctx_list_lock); + if (!found_element) + printk(KERN_WARNING KBASE_DRV_NAME "kctx not in kctx_list\n"); + + filp->private_data = NULL; + kbase_destroy_context(kctx); + + dev_dbg(kbdev->osdev.dev, "deleted base context\n"); + kbase_release_device(kbdev); + return 0; +} + +#define CALL_MAX_SIZE 528 + +static long kbase_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) +{ + u64 msg[(CALL_MAX_SIZE + 7) >> 3] = { 0xdeadbeefdeadbeefull }; /* alignment fixup */ + u32 size = _IOC_SIZE(cmd); + kbase_context *kctx = filp->private_data; + + if (size > CALL_MAX_SIZE) + return -ENOTTY; + + if (0 != copy_from_user(&msg, (void *)arg, size)) { + pr_err("failed to copy ioctl argument into kernel space\n"); + return -EFAULT; + } + + if (MALI_ERROR_NONE != kbase_dispatch(kctx, &msg, size)) + return -EFAULT; + + if (0 != copy_to_user((void *)arg, &msg, size)) { + pr_err("failed to copy results of UK call back to user space\n"); + return -EFAULT; + } + return 0; +} + +static ssize_t kbase_read(struct file *filp, char __user *buf, size_t count, loff_t *f_pos) +{ + kbase_context *kctx = filp->private_data; + base_jd_event_v2 uevent; + int out_count = 0; + + if (count < sizeof(uevent)) + return -ENOBUFS; + + do { + while (kbase_event_dequeue(kctx, &uevent)) { + if (out_count > 0) + goto out; + + if (filp->f_flags & O_NONBLOCK) + return -EAGAIN; + + if (wait_event_interruptible(kctx->osctx.event_queue, kbase_event_pending(kctx))) + return -ERESTARTSYS; + } + if (uevent.event_code == BASE_JD_EVENT_DRV_TERMINATED) { + if (out_count == 0) + return -EPIPE; + goto out; + } + + if (copy_to_user(buf, &uevent, sizeof(uevent))) + return -EFAULT; + + buf += sizeof(uevent); + out_count++; + count -= sizeof(uevent); + } while (count >= sizeof(uevent)); + + out: + return out_count * sizeof(uevent); +} + +static unsigned int kbase_poll(struct file *filp, poll_table *wait) +{ + kbase_context *kctx = filp->private_data; + + poll_wait(filp, &kctx->osctx.event_queue, wait); + if (kbase_event_pending(kctx)) + return POLLIN | POLLRDNORM; + + return 0; +} + +void kbase_event_wakeup(kbase_context *kctx) +{ + KBASE_DEBUG_ASSERT(kctx); + + wake_up_interruptible(&kctx->osctx.event_queue); +} + +KBASE_EXPORT_TEST_API(kbase_event_wakeup) + +int kbase_check_flags(int flags) +{ + /* Enforce that the driver keeps the O_CLOEXEC flag so that execve() always + * closes the file descriptor in a child process. + */ + if (0 == (flags & O_CLOEXEC)) + return -EINVAL; + + return 0; +} + +static const struct file_operations kbase_fops = { + .owner = THIS_MODULE, + .open = kbase_open, + .release = kbase_release, + .read = kbase_read, + .poll = kbase_poll, + .unlocked_ioctl = kbase_ioctl, + .mmap = kbase_mmap, + .check_flags = kbase_check_flags, +}; + +#ifndef CONFIG_MALI_NO_MALI +void kbase_os_reg_write(kbase_device *kbdev, u16 offset, u32 value) +{ + writel(value, kbdev->osdev.reg + offset); +} + +u32 kbase_os_reg_read(kbase_device *kbdev, u16 offset) +{ + return readl(kbdev->osdev.reg + offset); +} + +static void *kbase_tag(void *ptr, u32 tag) +{ + return (void *)(((uintptr_t) ptr) | tag); +} + +static void *kbase_untag(void *ptr) +{ + return (void *)(((uintptr_t) ptr) & ~3); +} + +static irqreturn_t kbase_job_irq_handler(int irq, void *data) +{ + unsigned long flags; + struct kbase_device *kbdev = kbase_untag(data); + u32 val; + + spin_lock_irqsave(&kbdev->pm.gpu_powered_lock, flags); + + if (!kbdev->pm.gpu_powered) { + /* GPU is turned off - IRQ is not for us */ + spin_unlock_irqrestore(&kbdev->pm.gpu_powered_lock, flags); + return IRQ_NONE; + } + + val = kbase_reg_read(kbdev, JOB_CONTROL_REG(JOB_IRQ_STATUS), NULL); + +#ifdef CONFIG_MALI_DEBUG + if (!kbdev->pm.driver_ready_for_irqs) + dev_dbg(kbdev->osdev.dev, "%s: irq %d irqstatus 0x%x before driver is ready\n", + __func__, irq, val ); +#endif /* CONFIG_MALI_DEBUG */ + spin_unlock_irqrestore(&kbdev->pm.gpu_powered_lock, flags); + + if (!val) + return IRQ_NONE; + + dev_dbg(kbdev->osdev.dev, "%s: irq %d irqstatus 0x%x\n", __func__, irq, val); + + kbase_job_done(kbdev, val); + + return IRQ_HANDLED; +} + +KBASE_EXPORT_TEST_API(kbase_job_irq_handler); + +static irqreturn_t kbase_mmu_irq_handler(int irq, void *data) +{ + unsigned long flags; + struct kbase_device *kbdev = kbase_untag(data); + u32 val; + + spin_lock_irqsave(&kbdev->pm.gpu_powered_lock, flags); + + if (!kbdev->pm.gpu_powered) { + /* GPU is turned off - IRQ is not for us */ + spin_unlock_irqrestore(&kbdev->pm.gpu_powered_lock, flags); + return IRQ_NONE; + } + + val = kbase_reg_read(kbdev, MMU_REG(MMU_IRQ_STATUS), NULL); + +#ifdef CONFIG_MALI_DEBUG + if (!kbdev->pm.driver_ready_for_irqs) + dev_dbg(kbdev->osdev.dev, "%s: irq %d irqstatus 0x%x before driver is ready\n", + __func__, irq, val ); +#endif /* CONFIG_MALI_DEBUG */ + spin_unlock_irqrestore(&kbdev->pm.gpu_powered_lock, flags); + + if (!val) + return IRQ_NONE; + + dev_dbg(kbdev->osdev.dev, "%s: irq %d irqstatus 0x%x\n", __func__, irq, val); + + kbase_mmu_interrupt(kbdev, val); + + return IRQ_HANDLED; +} + +static irqreturn_t kbase_gpu_irq_handler(int irq, void *data) +{ + unsigned long flags; + struct kbase_device *kbdev = kbase_untag(data); + u32 val; + + spin_lock_irqsave(&kbdev->pm.gpu_powered_lock, flags); + + if (!kbdev->pm.gpu_powered) { + /* GPU is turned off - IRQ is not for us */ + spin_unlock_irqrestore(&kbdev->pm.gpu_powered_lock, flags); + return IRQ_NONE; + } + + val = kbase_reg_read(kbdev, GPU_CONTROL_REG(GPU_IRQ_STATUS), NULL); + +#ifdef CONFIG_MALI_DEBUG + if (!kbdev->pm.driver_ready_for_irqs) + dev_dbg(kbdev->osdev.dev, "%s: irq %d irqstatus 0x%x before driver is ready\n", + __func__, irq, val ); +#endif /* CONFIG_MALI_DEBUG */ + spin_unlock_irqrestore(&kbdev->pm.gpu_powered_lock, flags); + + if (!val) + return IRQ_NONE; + + dev_dbg(kbdev->osdev.dev, "%s: irq %d irqstatus 0x%x\n", __func__, irq, val); + + kbase_gpu_interrupt(kbdev, val); + + return IRQ_HANDLED; +} + +static irq_handler_t kbase_handler_table[] = { + [JOB_IRQ_TAG] = kbase_job_irq_handler, + [MMU_IRQ_TAG] = kbase_mmu_irq_handler, + [GPU_IRQ_TAG] = kbase_gpu_irq_handler, +}; + +#ifdef CONFIG_MALI_DEBUG +#define JOB_IRQ_HANDLER JOB_IRQ_TAG +#define MMU_IRQ_HANDLER MMU_IRQ_TAG +#define GPU_IRQ_HANDLER GPU_IRQ_TAG + +/** + * @brief Registers given interrupt handler for requested interrupt type + * Case irq handler is not specified default handler shall be registered + * + * @param[in] kbdev - Device for which the handler is to be registered + * @param[in] custom_handler - Handler to be registered + * @param[in] irq_type - Interrupt type + * @return MALI_ERROR_NONE case success, MALI_ERROR_FUNCTION_FAILED otherwise + */ +static mali_error kbase_set_custom_irq_handler(kbase_device *kbdev, irq_handler_t custom_handler, int irq_type) +{ + struct kbase_os_device *osdev = &kbdev->osdev; + mali_error result = MALI_ERROR_NONE; + irq_handler_t requested_irq_handler = NULL; + KBASE_DEBUG_ASSERT((JOB_IRQ_HANDLER <= irq_type) && (GPU_IRQ_HANDLER >= irq_type)); + + /* Release previous handler */ + if (osdev->irqs[irq_type].irq) + free_irq(osdev->irqs[irq_type].irq, kbase_tag(kbdev, irq_type)); + + requested_irq_handler = (NULL != custom_handler) ? custom_handler : kbase_handler_table[irq_type]; + + if (0 != request_irq(osdev->irqs[irq_type].irq, requested_irq_handler, osdev->irqs[irq_type].flags | IRQF_SHARED, dev_name(osdev->dev), kbase_tag(kbdev, irq_type))) { + result = MALI_ERROR_FUNCTION_FAILED; + dev_err(osdev->dev, "Can't request interrupt %d (index %d)\n", osdev->irqs[irq_type].irq, irq_type); +#ifdef CONFIG_SPARSE_IRQ + dev_err(osdev->dev, "You have CONFIG_SPARSE_IRQ support enabled - is the interrupt number correct for this configuration?\n"); +#endif /* CONFIG_SPARSE_IRQ */ + } + + return result; +} + +KBASE_EXPORT_TEST_API(kbase_set_custom_irq_handler) + +/* test correct interrupt assigment and reception by cpu */ +typedef struct kbasep_irq_test { + struct hrtimer timer; + wait_queue_head_t wait; + int triggered; + u32 timeout; +} kbasep_irq_test; + +static kbasep_irq_test kbasep_irq_test_data; + +#define IRQ_TEST_TIMEOUT 500 + +static irqreturn_t kbase_job_irq_test_handler(int irq, void *data) +{ + unsigned long flags; + struct kbase_device *kbdev = kbase_untag(data); + u32 val; + + spin_lock_irqsave(&kbdev->pm.gpu_powered_lock, flags); + + if (!kbdev->pm.gpu_powered) { + /* GPU is turned off - IRQ is not for us */ + spin_unlock_irqrestore(&kbdev->pm.gpu_powered_lock, flags); + return IRQ_NONE; + } + + val = kbase_reg_read(kbdev, JOB_CONTROL_REG(JOB_IRQ_STATUS), NULL); + + spin_unlock_irqrestore(&kbdev->pm.gpu_powered_lock, flags); + + if (!val) + return IRQ_NONE; + + dev_dbg(kbdev->osdev.dev, "%s: irq %d irqstatus 0x%x\n", __func__, irq, val); + + kbasep_irq_test_data.triggered = 1; + wake_up(&kbasep_irq_test_data.wait); + + kbase_reg_write(kbdev, JOB_CONTROL_REG(JOB_IRQ_CLEAR), val, NULL); + + return IRQ_HANDLED; +} + +static irqreturn_t kbase_mmu_irq_test_handler(int irq, void *data) +{ + unsigned long flags; + struct kbase_device *kbdev = kbase_untag(data); + u32 val; + + spin_lock_irqsave(&kbdev->pm.gpu_powered_lock, flags); + + if (!kbdev->pm.gpu_powered) { + /* GPU is turned off - IRQ is not for us */ + spin_unlock_irqrestore(&kbdev->pm.gpu_powered_lock, flags); + return IRQ_NONE; + } + + val = kbase_reg_read(kbdev, MMU_REG(MMU_IRQ_STATUS), NULL); + + spin_unlock_irqrestore(&kbdev->pm.gpu_powered_lock, flags); + + if (!val) + return IRQ_NONE; + + dev_dbg(kbdev->osdev.dev, "%s: irq %d irqstatus 0x%x\n", __func__, irq, val); + + kbasep_irq_test_data.triggered = 1; + wake_up(&kbasep_irq_test_data.wait); + + kbase_reg_write(kbdev, MMU_REG(MMU_IRQ_CLEAR), val, NULL); + + return IRQ_HANDLED; +} + +static enum hrtimer_restart kbasep_test_interrupt_timeout(struct hrtimer *timer) +{ + kbasep_irq_test *test_data = container_of(timer, kbasep_irq_test, timer); + + test_data->timeout = 1; + test_data->triggered = 1; + wake_up(&test_data->wait); + return HRTIMER_NORESTART; +} + +static mali_error kbasep_common_test_interrupt(kbase_device * const kbdev, u32 tag) +{ + struct kbase_os_device *osdev = &kbdev->osdev; + mali_error err = MALI_ERROR_NONE; + irq_handler_t test_handler; + + u32 old_mask_val; + u16 mask_offset; + u16 rawstat_offset; + + switch (tag) { + case JOB_IRQ_TAG: + test_handler = kbase_job_irq_test_handler; + rawstat_offset = JOB_CONTROL_REG(JOB_IRQ_RAWSTAT); + mask_offset = JOB_CONTROL_REG(JOB_IRQ_MASK); + break; + case MMU_IRQ_TAG: + test_handler = kbase_mmu_irq_test_handler; + rawstat_offset = MMU_REG(MMU_IRQ_RAWSTAT); + mask_offset = MMU_REG(MMU_IRQ_MASK); + break; + case GPU_IRQ_TAG: + /* already tested by pm_driver - bail out */ + default: + return MALI_ERROR_NONE; + } + + /* store old mask */ + old_mask_val = kbase_reg_read(kbdev, mask_offset, NULL); + /* mask interrupts */ + kbase_reg_write(kbdev, mask_offset, 0x0, NULL); + + if (osdev->irqs[tag].irq) { + /* release original handler and install test handler */ + if (MALI_ERROR_NONE != kbase_set_custom_irq_handler(kbdev, test_handler, tag)) { + err = MALI_ERROR_FUNCTION_FAILED; + } else { + kbasep_irq_test_data.timeout = 0; + hrtimer_init(&kbasep_irq_test_data.timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); + kbasep_irq_test_data.timer.function = kbasep_test_interrupt_timeout; + + /* trigger interrupt */ + kbase_reg_write(kbdev, mask_offset, 0x1, NULL); + kbase_reg_write(kbdev, rawstat_offset, 0x1, NULL); + + hrtimer_start(&kbasep_irq_test_data.timer, HR_TIMER_DELAY_MSEC(IRQ_TEST_TIMEOUT), HRTIMER_MODE_REL); + + wait_event(kbasep_irq_test_data.wait, kbasep_irq_test_data.triggered != 0); + + if (kbasep_irq_test_data.timeout != 0) { + dev_err(osdev->dev, "Interrupt %d (index %d) didn't reach CPU.\n", osdev->irqs[tag].irq, tag); + err = MALI_ERROR_FUNCTION_FAILED; + } else { + dev_dbg(osdev->dev, "Interrupt %d (index %d) reached CPU.\n", osdev->irqs[tag].irq, tag); + } + + hrtimer_cancel(&kbasep_irq_test_data.timer); + kbasep_irq_test_data.triggered = 0; + + /* mask interrupts */ + kbase_reg_write(kbdev, mask_offset, 0x0, NULL); + + /* release test handler */ + free_irq(osdev->irqs[tag].irq, kbase_tag(kbdev, tag)); + } + + /* restore original interrupt */ + if (request_irq(osdev->irqs[tag].irq, kbase_handler_table[tag], osdev->irqs[tag].flags | IRQF_SHARED, dev_name(osdev->dev), kbase_tag(kbdev, tag))) { + dev_err(osdev->dev, "Can't restore original interrupt %d (index %d)\n", osdev->irqs[tag].irq, tag); + err = MALI_ERROR_FUNCTION_FAILED; + } + } + /* restore old mask */ + kbase_reg_write(kbdev, mask_offset, old_mask_val, NULL); + + return err; +} + +static mali_error kbasep_common_test_interrupt_handlers(kbase_device * const kbdev) +{ + struct kbase_os_device *osdev = &kbdev->osdev; + mali_error err; + + init_waitqueue_head(&kbasep_irq_test_data.wait); + kbasep_irq_test_data.triggered = 0; + + /* A suspend won't happen during startup/insmod */ + kbase_pm_context_active(kbdev); + + err = kbasep_common_test_interrupt(kbdev, JOB_IRQ_TAG); + if (MALI_ERROR_NONE != err) { + dev_err(osdev->dev, "Interrupt JOB_IRQ didn't reach CPU. Check interrupt assignments.\n"); + goto out; + } + + err = kbasep_common_test_interrupt(kbdev, MMU_IRQ_TAG); + if (MALI_ERROR_NONE != err) { + dev_err(osdev->dev, "Interrupt MMU_IRQ didn't reach CPU. Check interrupt assignments.\n"); + goto out; + } + + dev_err(osdev->dev, "Interrupts are correctly assigned.\n"); + + out: + kbase_pm_context_idle(kbdev); + + return err; + +} +#endif /* CONFIG_MALI_DEBUG */ + +static int kbase_install_interrupts(kbase_device *kbdev) +{ + struct kbase_os_device *osdev = &kbdev->osdev; + u32 nr = ARRAY_SIZE(kbase_handler_table); + int err; + u32 i; + + BUG_ON(nr > PLATFORM_CONFIG_IRQ_RES_COUNT); /* Only 3 interrupts! */ + + for (i = 0; i < nr; i++) { + err = request_irq(osdev->irqs[i].irq, kbase_handler_table[i], osdev->irqs[i].flags | IRQF_SHARED, dev_name(osdev->dev), kbase_tag(kbdev, i)); + if (err) { + dev_err(osdev->dev, "Can't request interrupt %d (index %d)\n", osdev->irqs[i].irq, i); +#ifdef CONFIG_SPARSE_IRQ + dev_err(osdev->dev, "You have CONFIG_SPARSE_IRQ support enabled - is the interrupt number correct for this configuration?\n"); +#endif /* CONFIG_SPARSE_IRQ */ + goto release; + } + } + + return 0; + + release: + while (i-- > 0) + free_irq(osdev->irqs[i].irq, kbase_tag(kbdev, i)); + + return err; +} + +static void kbase_release_interrupts(kbase_device *kbdev) +{ + struct kbase_os_device *osdev = &kbdev->osdev; + u32 nr = ARRAY_SIZE(kbase_handler_table); + u32 i; + + for (i = 0; i < nr; i++) { + if (osdev->irqs[i].irq) + free_irq(osdev->irqs[i].irq, kbase_tag(kbdev, i)); + } +} + +void kbase_synchronize_irqs(kbase_device *kbdev) +{ + struct kbase_os_device *osdev = &kbdev->osdev; + u32 nr = ARRAY_SIZE(kbase_handler_table); + u32 i; + + for (i = 0; i < nr; i++) { + if (osdev->irqs[i].irq) + synchronize_irq(osdev->irqs[i].irq); + } +} + +#endif /* CONFIG_MALI_NO_MALI */ + +/** Show callback for the @c gpu_memory sysfs file. + * + * This function is called to get the contents of the @c gpu_memory sysfs + * file. This is a report of current gpu memory usage. + * + * @param dev The device this sysfs file is for + * @param attr The attributes of the sysfs file + * @param buf The output buffer for the sysfs file contents + * + * @return The number of bytes output to @c buf. + */ +static ssize_t show_gpu_memory(struct device *dev, struct device_attribute *attr, char *buf) +{ + ssize_t ret = 0; + struct list_head *entry; + + ret += scnprintf(buf + ret, PAGE_SIZE - ret, "Name cap(pages) usage(pages)\n" "=========================================\n"); + down(&kbase_dev_list_lock); + list_for_each(entry, &kbase_dev_list) { + struct kbase_device *kbdev = NULL; + kbasep_kctx_list_element *element; + + kbdev = list_entry(entry, struct kbase_device, osdev.entry); + /* output the total memory usage and cap for this device */ + ret += scnprintf(buf + ret, PAGE_SIZE - ret, "%-16s %10u %10u\n", kbdev->osdev.devname, kbdev->memdev.usage.max_pages, atomic_read(&(kbdev->memdev.usage.cur_pages)) + ); + mutex_lock(&kbdev->kctx_list_lock); + list_for_each_entry(element, &kbdev->kctx_list, link) { + /* output the memory usage and cap for each kctx opened on this device */ + ret += scnprintf(buf + ret, PAGE_SIZE - ret, " %s-0x%p %10u %10u\n", "kctx", element->kctx, element->kctx->usage.max_pages, atomic_read(&(element->kctx->usage.cur_pages)) + ); + } + mutex_unlock(&kbdev->kctx_list_lock); + } + up(&kbase_dev_list_lock); + if (PAGE_SIZE == ret) { + /* we attempted to write more than a page full - truncate */ + buf[PAGE_SIZE - 2] = '\n'; + buf[PAGE_SIZE - 1] = '\0'; + ret = PAGE_SIZE - 1; + } + return ret; +} + +/** The sysfs file @c gpu_memory. + * + * This is used for obtaining a report of current gpu memory usage. + */ +DEVICE_ATTR(gpu_memory, S_IRUGO, show_gpu_memory, NULL); + + +/** Show callback for the @c power_policy sysfs file. + * + * This function is called to get the contents of the @c power_policy sysfs + * file. This is a list of the available policies with the currently active one + * surrounded by square brackets. + * + * @param dev The device this sysfs file is for + * @param attr The attributes of the sysfs file + * @param buf The output buffer for the sysfs file contents + * + * @return The number of bytes output to @c buf. + */ +static ssize_t show_policy(struct device *dev, struct device_attribute *attr, char *const buf) +{ + struct kbase_device *kbdev; + const struct kbase_pm_policy *current_policy; + const struct kbase_pm_policy *const *policy_list; + int policy_count; + int i; + ssize_t ret = 0; + + kbdev = to_kbase_device(dev); + + if (!kbdev) + return -ENODEV; + + current_policy = kbase_pm_get_policy(kbdev); + + policy_count = kbase_pm_list_policies(&policy_list); + + for (i = 0; i < policy_count && ret < PAGE_SIZE; i++) { + if (policy_list[i] == current_policy) + ret += scnprintf(buf + ret, PAGE_SIZE - ret, "[%s] ", policy_list[i]->name); + else + ret += scnprintf(buf + ret, PAGE_SIZE - ret, "%s ", policy_list[i]->name); + } + + if (ret < PAGE_SIZE - 1) { + ret += scnprintf(buf + ret, PAGE_SIZE - ret, "\n"); + } else { + buf[PAGE_SIZE - 2] = '\n'; + buf[PAGE_SIZE - 1] = '\0'; + ret = PAGE_SIZE - 1; + } + + return ret; +} + +/** Store callback for the @c power_policy sysfs file. + * + * This function is called when the @c power_policy sysfs file is written to. + * It matches the requested policy against the available policies and if a + * matching policy is found calls @ref kbase_pm_set_policy to change the + * policy. + * + * @param dev The device with sysfs file is for + * @param attr The attributes of the sysfs file + * @param buf The value written to the sysfs file + * @param count The number of bytes written to the sysfs file + * + * @return @c count if the function succeeded. An error code on failure. + */ +static ssize_t set_policy(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct kbase_device *kbdev; + const struct kbase_pm_policy *new_policy = NULL; + const struct kbase_pm_policy *const *policy_list; + int policy_count; + int i; + + kbdev = to_kbase_device(dev); + + if (!kbdev) + return -ENODEV; + + policy_count = kbase_pm_list_policies(&policy_list); + + for (i = 0; i < policy_count; i++) { + if (sysfs_streq(policy_list[i]->name, buf)) { + new_policy = policy_list[i]; + break; + } + } + + if (!new_policy) { + dev_err(dev, "power_policy: policy not found\n"); + return -EINVAL; + } + + kbase_pm_set_policy(kbdev, new_policy); + + return count; +} + +/** The sysfs file @c power_policy. + * + * This is used for obtaining information about the available policies, + * determining which policy is currently active, and changing the active + * policy. + */ +DEVICE_ATTR(power_policy, S_IRUGO | S_IWUSR, show_policy, set_policy); + +/** Show callback for the @c core_availability_policy sysfs file. + * + * This function is called to get the contents of the @c core_availability_policy + * sysfs file. This is a list of the available policies with the currently + * active one surrounded by square brackets. + * + * @param dev The device this sysfs file is for + * @param attr The attributes of the sysfs file + * @param buf The output buffer for the sysfs file contents + * + * @return The number of bytes output to @c buf. + */ +static ssize_t show_ca_policy(struct device *dev, struct device_attribute *attr, char *const buf) +{ + struct kbase_device *kbdev; + const struct kbase_pm_ca_policy *current_policy; + const struct kbase_pm_ca_policy *const *policy_list; + int policy_count; + int i; + ssize_t ret = 0; + + kbdev = to_kbase_device(dev); + + if (!kbdev) + return -ENODEV; + + current_policy = kbase_pm_ca_get_policy(kbdev); + + policy_count = kbase_pm_ca_list_policies(&policy_list); + + for (i = 0; i < policy_count && ret < PAGE_SIZE; i++) { + if (policy_list[i] == current_policy) + ret += scnprintf(buf + ret, PAGE_SIZE - ret, "[%s] ", policy_list[i]->name); + else + ret += scnprintf(buf + ret, PAGE_SIZE - ret, "%s ", policy_list[i]->name); + } + + if (ret < PAGE_SIZE - 1) { + ret += scnprintf(buf + ret, PAGE_SIZE - ret, "\n"); + } else { + buf[PAGE_SIZE - 2] = '\n'; + buf[PAGE_SIZE - 1] = '\0'; + ret = PAGE_SIZE - 1; + } + + return ret; +} + +/** Store callback for the @c core_availability_policy sysfs file. + * + * This function is called when the @c core_availability_policy sysfs file is + * written to. It matches the requested policy against the available policies + * and if a matching policy is found calls @ref kbase_pm_set_policy to change + * the policy. + * + * @param dev The device with sysfs file is for + * @param attr The attributes of the sysfs file + * @param buf The value written to the sysfs file + * @param count The number of bytes written to the sysfs file + * + * @return @c count if the function succeeded. An error code on failure. + */ +static ssize_t set_ca_policy(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct kbase_device *kbdev; + const struct kbase_pm_ca_policy *new_policy = NULL; + const struct kbase_pm_ca_policy *const *policy_list; + int policy_count; + int i; + + kbdev = to_kbase_device(dev); + + if (!kbdev) + return -ENODEV; + + policy_count = kbase_pm_ca_list_policies(&policy_list); + + for (i = 0; i < policy_count; i++) { + if (sysfs_streq(policy_list[i]->name, buf)) { + new_policy = policy_list[i]; + break; + } + } + + if (!new_policy) { + dev_err(dev, "core_availability_policy: policy not found\n"); + return -EINVAL; + } + + kbase_pm_ca_set_policy(kbdev, new_policy); + + return count; +} + +/** The sysfs file @c core_availability_policy + * + * This is used for obtaining information about the available policies, + * determining which policy is currently active, and changing the active + * policy. + */ +DEVICE_ATTR(core_availability_policy, S_IRUGO | S_IWUSR, show_ca_policy, set_ca_policy); + +/** Show callback for the @c core_mask sysfs file. + * + * This function is called to get the contents of the @c core_mask sysfs + * file. + * + * @param dev The device this sysfs file is for + * @param attr The attributes of the sysfs file + * @param buf The output buffer for the sysfs file contents + * + * @return The number of bytes output to @c buf. + */ +static ssize_t show_core_mask(struct device *dev, struct device_attribute *attr, char *const buf) +{ + struct kbase_device *kbdev; + ssize_t ret = 0; + + kbdev = to_kbase_device(dev); + + if (!kbdev) + return -ENODEV; + + ret += scnprintf(buf + ret, PAGE_SIZE - ret, "Current core mask : 0x%llX\n", kbdev->pm.debug_core_mask); + ret += scnprintf(buf + ret, PAGE_SIZE - ret, "Available core mask : 0x%llX\n", kbdev->shader_present_bitmap); + + return ret; +} + +/** Store callback for the @c core_mask sysfs file. + * + * This function is called when the @c core_mask sysfs file is written to. + * + * @param dev The device with sysfs file is for + * @param attr The attributes of the sysfs file + * @param buf The value written to the sysfs file + * @param count The number of bytes written to the sysfs file + * + * @return @c count if the function succeeded. An error code on failure. + */ +static ssize_t set_core_mask(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct kbase_device *kbdev; + u64 new_core_mask; + + kbdev = to_kbase_device(dev); + + if (!kbdev) + return -ENODEV; + + new_core_mask = simple_strtoull(buf, NULL, 16); + + if ((new_core_mask & kbdev->shader_present_bitmap) != new_core_mask || + !(new_core_mask & kbdev->gpu_props.props.coherency_info.group[0].core_mask)) { + dev_err(dev, "power_policy: invalid core specification\n"); + return -EINVAL; + } + + if (kbdev->pm.debug_core_mask != new_core_mask) { + unsigned long flags; + + spin_lock_irqsave(&kbdev->pm.power_change_lock, flags); + + kbdev->pm.debug_core_mask = new_core_mask; + kbase_pm_update_cores_state_nolock(kbdev); + + spin_unlock_irqrestore(&kbdev->pm.power_change_lock, flags); + } + + return count; +} + +/** The sysfs file @c core_mask. + * + * This is used to restrict shader core availability for debugging purposes. + * Reading it will show the current core mask and the mask of cores available. + * Writing to it will set the current core mask. + */ +DEVICE_ATTR(core_mask, S_IRUGO | S_IWUSR, show_core_mask, set_core_mask); + + +#ifdef CONFIG_MALI_DEBUG_SHADER_SPLIT_FS +/* Import the external affinity mask variables */ +extern u64 mali_js0_affinity_mask; +extern u64 mali_js1_affinity_mask; +extern u64 mali_js2_affinity_mask; + +/** + * Structure containing a single shader affinity split configuration. + */ +typedef struct { + char const * tag; + char const * human_readable; + u64 js0_mask; + u64 js1_mask; + u64 js2_mask; +} sc_split_config; + +/** + * Array of available shader affinity split configurations. + */ +static sc_split_config const sc_split_configs[] = +{ + /* All must be the first config (default). */ + { + "all", "All cores", + 0xFFFFFFFFFFFFFFFFULL, 0xFFFFFFFFFFFFFFFFULL, 0xFFFFFFFFFFFFFFFFULL + }, + { + "mp1", "MP1 shader core", + 0x1, 0x1, 0x1 + }, + { + "mp2", "MP2 shader core", + 0x3, 0x3, 0x3 + }, + { + "mp4", "MP4 shader core", + 0xF, 0xF, 0xF + }, + { + "mp1_vf", "MP1 vertex + MP1 fragment shader core", + 0x2, 0x1, 0xFFFFFFFFFFFFFFFFULL + }, + { + "mp2_vf", "MP2 vertex + MP2 fragment shader core", + 0xA, 0x5, 0xFFFFFFFFFFFFFFFFULL + }, + /* This must be the last config. */ + { + NULL, NULL, + 0x0, 0x0, 0x0 + }, +}; + +/* Pointer to the currently active shader split configuration. */ +static sc_split_config const * current_sc_split_config = &sc_split_configs[0]; + +/** Show callback for the @c sc_split sysfs file + * + * Returns the current shader core affinity policy. + */ +static ssize_t show_split(struct device *dev, struct device_attribute *attr, char * const buf) +{ + ssize_t ret; + /* We know we are given a buffer which is PAGE_SIZE long. Our strings are all guaranteed + * to be shorter than that at this time so no length check needed. */ + ret = scnprintf(buf, PAGE_SIZE, "Current sc_split: '%s'\n", current_sc_split_config->tag ); + return ret; +} + +/** Store callback for the @c sc_split sysfs file. + * + * This function is called when the @c sc_split sysfs file is written to + * It modifies the system shader core affinity configuration to allow + * system profiling with different hardware configurations. + * + * @param dev The device with sysfs file is for + * @param attr The attributes of the sysfs file + * @param buf The value written to the sysfs file + * @param count The number of bytes written to the sysfs file + * + * @return @c count if the function succeeded. An error code on failure. + */ +static ssize_t set_split(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + sc_split_config const * config = &sc_split_configs[0]; + + /* Try to match: loop until we hit the last "NULL" entry */ + while( config->tag ) + { + if (sysfs_streq(config->tag, buf)) + { + current_sc_split_config = config; + mali_js0_affinity_mask = config->js0_mask; + mali_js1_affinity_mask = config->js1_mask; + mali_js2_affinity_mask = config->js2_mask; + dev_info(dev, "Setting sc_split: '%s'\n", config->tag); + return count; + } + config++; + } + + /* No match found in config list */ + dev_err(dev, "sc_split: invalid value\n"); + dev_err(dev, " Possible settings: mp[1|2|4], mp[1|2]_vf\n"); + return -ENOENT; +} + +/** The sysfs file @c sc_split + * + * This is used for configuring/querying the current shader core work affinity + * configuration. + */ +DEVICE_ATTR(sc_split, S_IRUGO|S_IWUSR, show_split, set_split); +#endif /* CONFIG_MALI_DEBUG_SHADER_SPLIT_FS */ + + +#if MALI_CUSTOMER_RELEASE == 0 +/** Store callback for the @c js_timeouts sysfs file. + * + * This function is called to get the contents of the @c js_timeouts sysfs + * file. This file contains five values separated by whitespace. The values + * are basically the same as KBASE_CONFIG_ATTR_JS_SOFT_STOP_TICKS, + * KBASE_CONFIG_ATTR_JS_HARD_STOP_TICKS_SS, KBASE_CONFIG_ATTR_JS_HARD_STOP_TICKS_NSS, + * KBASE_CONFIG_ATTR_JS_RESET_TICKS_SS, BASE_CONFIG_ATTR_JS_RESET_TICKS_NSS + * configuration values (in that order), with the difference that the js_timeout + * valus are expressed in MILLISECONDS. + * + * The js_timeouts sysfile file allows the current values in + * use by the job scheduler to get override. Note that a value needs to + * be other than 0 for it to override the current job scheduler value. + * + * @param dev The device with sysfs file is for + * @param attr The attributes of the sysfs file + * @param buf The value written to the sysfs file + * @param count The number of bytes written to the sysfs file + * + * @return @c count if the function succeeded. An error code on failure. + */ +static ssize_t set_js_timeouts(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct kbase_device *kbdev; + int items; + unsigned long js_soft_stop_ms; + unsigned long js_hard_stop_ms_ss; + unsigned long js_hard_stop_ms_nss; + unsigned long js_reset_ms_ss; + unsigned long js_reset_ms_nss; + + kbdev = to_kbase_device(dev); + if (!kbdev) + return -ENODEV; + + items = sscanf(buf, "%lu %lu %lu %lu %lu", &js_soft_stop_ms, &js_hard_stop_ms_ss, &js_hard_stop_ms_nss, &js_reset_ms_ss, &js_reset_ms_nss); + if (items == 5) { + u64 ticks; + + ticks = js_soft_stop_ms * 1000000ULL; + do_div(ticks, kbdev->js_data.scheduling_tick_ns); + kbdev->js_soft_stop_ticks = ticks; + + ticks = js_hard_stop_ms_ss * 1000000ULL; + do_div(ticks, kbdev->js_data.scheduling_tick_ns); + kbdev->js_hard_stop_ticks_ss = ticks; + + ticks = js_hard_stop_ms_nss * 1000000ULL; + do_div(ticks, kbdev->js_data.scheduling_tick_ns); + kbdev->js_hard_stop_ticks_nss = ticks; + + ticks = js_reset_ms_ss * 1000000ULL; + do_div(ticks, kbdev->js_data.scheduling_tick_ns); + kbdev->js_reset_ticks_ss = ticks; + + ticks = js_reset_ms_nss * 1000000ULL; + do_div(ticks, kbdev->js_data.scheduling_tick_ns); + kbdev->js_reset_ticks_nss = ticks; + + dev_info(kbdev->osdev.dev, "Overriding KBASE_CONFIG_ATTR_JS_SOFT_STOP_TICKS with %lu ticks (%lu ms)\n", (unsigned long)kbdev->js_soft_stop_ticks, js_soft_stop_ms); + dev_info(kbdev->osdev.dev, "Overriding KBASE_CONFIG_ATTR_JS_HARD_STOP_TICKS_SS with %lu ticks (%lu ms)\n", (unsigned long)kbdev->js_hard_stop_ticks_ss, js_hard_stop_ms_ss); + dev_info(kbdev->osdev.dev, "Overriding KBASE_CONFIG_ATTR_JS_HARD_STOP_TICKS_NSS with %lu ticks (%lu ms)\n", (unsigned long)kbdev->js_hard_stop_ticks_nss, js_hard_stop_ms_nss); + dev_info(kbdev->osdev.dev, "Overriding KBASE_CONFIG_ATTR_JS_RESET_TICKS_SS with %lu ticks (%lu ms)\n", (unsigned long)kbdev->js_reset_ticks_ss, js_reset_ms_ss); + dev_info(kbdev->osdev.dev, "Overriding KBASE_CONFIG_ATTR_JS_RESET_TICKS_NSS with %lu ticks (%lu ms)\n", (unsigned long)kbdev->js_reset_ticks_nss, js_reset_ms_nss); + + return count; + } else { + dev_err(kbdev->osdev.dev, "Couldn't process js_timeouts write operation.\nUse format " "<soft_stop_ms> <hard_stop_ms_ss> <hard_stop_ms_nss> <reset_ms_ss> <reset_ms_nss>\n"); + return -EINVAL; + } +} + +/** Show callback for the @c js_timeouts sysfs file. + * + * This function is called to get the contents of the @c js_timeouts sysfs + * file. It returns the last set values written to the js_timeouts sysfs file. + * If the file didn't get written yet, the values will be 0. + * + * @param dev The device this sysfs file is for + * @param attr The attributes of the sysfs file + * @param buf The output buffer for the sysfs file contents + * + * @return The number of bytes output to @c buf. + */ +static ssize_t show_js_timeouts(struct device *dev, struct device_attribute *attr, char * const buf) +{ + struct kbase_device *kbdev; + ssize_t ret; + u64 ms; + unsigned long js_soft_stop_ms; + unsigned long js_hard_stop_ms_ss; + unsigned long js_hard_stop_ms_nss; + unsigned long js_reset_ms_ss; + unsigned long js_reset_ms_nss; + + kbdev = to_kbase_device(dev); + if (!kbdev) + return -ENODEV; + + ms = (u64) kbdev->js_soft_stop_ticks * kbdev->js_data.scheduling_tick_ns; + do_div(ms, 1000000UL); + js_soft_stop_ms = (unsigned long)ms; + + ms = (u64) kbdev->js_hard_stop_ticks_ss * kbdev->js_data.scheduling_tick_ns; + do_div(ms, 1000000UL); + js_hard_stop_ms_ss = (unsigned long)ms; + + ms = (u64) kbdev->js_hard_stop_ticks_nss * kbdev->js_data.scheduling_tick_ns; + do_div(ms, 1000000UL); + js_hard_stop_ms_nss = (unsigned long)ms; + + ms = (u64) kbdev->js_reset_ticks_ss * kbdev->js_data.scheduling_tick_ns; + do_div(ms, 1000000UL); + js_reset_ms_ss = (unsigned long)ms; + + ms = (u64) kbdev->js_reset_ticks_nss * kbdev->js_data.scheduling_tick_ns; + do_div(ms, 1000000UL); + js_reset_ms_nss = (unsigned long)ms; + + ret = scnprintf(buf, PAGE_SIZE, "%lu %lu %lu %lu %lu\n", js_soft_stop_ms, js_hard_stop_ms_ss, js_hard_stop_ms_nss, js_reset_ms_ss, js_reset_ms_nss); + + if (ret >= PAGE_SIZE) { + buf[PAGE_SIZE - 2] = '\n'; + buf[PAGE_SIZE - 1] = '\0'; + ret = PAGE_SIZE - 1; + } + + return ret; +} + +/** The sysfs file @c js_timeouts. + * + * This is used to override the current job scheduler values for + * KBASE_CONFIG_ATTR_JS_STOP_STOP_TICKS_SS + * KBASE_CONFIG_ATTR_JS_HARD_STOP_TICKS_SS + * KBASE_CONFIG_ATTR_JS_HARD_STOP_TICKS_NSS + * KBASE_CONFIG_ATTR_JS_RESET_TICKS_SS + * KBASE_CONFIG_ATTR_JS_RESET_TICKS_NSS. + */ +DEVICE_ATTR(js_timeouts, S_IRUGO | S_IWUSR, show_js_timeouts, set_js_timeouts); +#endif /* MALI_CUSTOMER_RELEASE == 0 */ + +#ifdef CONFIG_MALI_DEBUG +static ssize_t set_js_softstop_always(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct kbase_device *kbdev; + int items; + int softstop_always; + + kbdev = to_kbase_device(dev); + if (!kbdev) + return -ENODEV; + + items = sscanf(buf, "%d", &softstop_always); + if ((items == 1) && ((softstop_always == 0) || (softstop_always == 1))) { + kbdev->js_data.softstop_always = (mali_bool) softstop_always; + + dev_info(kbdev->osdev.dev, "Support for softstop on a single context: %s\n", (kbdev->js_data.softstop_always == MALI_FALSE) ? "Disabled" : "Enabled"); + return count; + } else { + dev_err(kbdev->osdev.dev, "Couldn't process js_softstop_always write operation.\nUse format " "<soft_stop_always>\n"); + return -EINVAL; + } +} + +static ssize_t show_js_softstop_always(struct device *dev, struct device_attribute *attr, char * const buf) +{ + struct kbase_device *kbdev; + ssize_t ret; + + kbdev = to_kbase_device(dev); + if (!kbdev) + return -ENODEV; + + ret = scnprintf(buf, PAGE_SIZE, "%d\n", kbdev->js_data.softstop_always); + + if (ret >= PAGE_SIZE) { + buf[PAGE_SIZE - 2] = '\n'; + buf[PAGE_SIZE - 1] = '\0'; + ret = PAGE_SIZE - 1; + } + + return ret; +} + +/** + * By default, soft-stops are disabled when only a single context is present. The ability to + * enable soft-stop when only a single context is present can be used for debug and unit-testing purposes. + * (see CL t6xx_stress_1 unit-test as an example whereby this feature is used.) + */ +DEVICE_ATTR(js_softstop_always, S_IRUGO | S_IWUSR, show_js_softstop_always, set_js_softstop_always); +#endif /* CONFIG_MALI_DEBUG */ + +#ifdef CONFIG_MALI_DEBUG +typedef void (kbasep_debug_command_func) (kbase_device *); + +typedef enum { + KBASEP_DEBUG_COMMAND_DUMPTRACE, + + /* This must be the last enum */ + KBASEP_DEBUG_COMMAND_COUNT +} kbasep_debug_command_code; + +typedef struct kbasep_debug_command { + char *str; + kbasep_debug_command_func *func; +} kbasep_debug_command; + +/** Debug commands supported by the driver */ +static const kbasep_debug_command debug_commands[] = { + { + .str = "dumptrace", + .func = &kbasep_trace_dump, + } +}; + +/** Show callback for the @c debug_command sysfs file. + * + * This function is called to get the contents of the @c debug_command sysfs + * file. This is a list of the available debug commands, separated by newlines. + * + * @param dev The device this sysfs file is for + * @param attr The attributes of the sysfs file + * @param buf The output buffer for the sysfs file contents + * + * @return The number of bytes output to @c buf. + */ +static ssize_t show_debug(struct device *dev, struct device_attribute *attr, char *const buf) +{ + struct kbase_device *kbdev; + int i; + ssize_t ret = 0; + + kbdev = to_kbase_device(dev); + + if (!kbdev) + return -ENODEV; + + for (i = 0; i < KBASEP_DEBUG_COMMAND_COUNT && ret < PAGE_SIZE; i++) + ret += scnprintf(buf + ret, PAGE_SIZE - ret, "%s\n", debug_commands[i].str); + + if (ret >= PAGE_SIZE) { + buf[PAGE_SIZE - 2] = '\n'; + buf[PAGE_SIZE - 1] = '\0'; + ret = PAGE_SIZE - 1; + } + + return ret; +} + +/** Store callback for the @c debug_command sysfs file. + * + * This function is called when the @c debug_command sysfs file is written to. + * It matches the requested command against the available commands, and if + * a matching command is found calls the associated function from + * @ref debug_commands to issue the command. + * + * @param dev The device with sysfs file is for + * @param attr The attributes of the sysfs file + * @param buf The value written to the sysfs file + * @param count The number of bytes written to the sysfs file + * + * @return @c count if the function succeeded. An error code on failure. + */ +static ssize_t issue_debug(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct kbase_device *kbdev; + int i; + + kbdev = to_kbase_device(dev); + + if (!kbdev) + return -ENODEV; + + for (i = 0; i < KBASEP_DEBUG_COMMAND_COUNT; i++) { + if (sysfs_streq(debug_commands[i].str, buf)) { + debug_commands[i].func(kbdev); + return count; + } + } + + /* Debug Command not found */ + dev_err(dev, "debug_command: command not known\n"); + return -EINVAL; +} + +/** The sysfs file @c debug_command. + * + * This is used to issue general debug commands to the device driver. + * Reading it will produce a list of debug commands, separated by newlines. + * Writing to it with one of those commands will issue said command. + */ +DEVICE_ATTR(debug_command, S_IRUGO | S_IWUSR, show_debug, issue_debug); +#endif /* CONFIG_MALI_DEBUG */ + +#ifdef CONFIG_MALI_NO_MALI +static int kbase_common_reg_map(kbase_device *kbdev) +{ + return 0; +} +static void kbase_common_reg_unmap(kbase_device * const kbdev) +{ + return; +} +#else /* CONFIG_MALI_NO_MALI */ +static int kbase_common_reg_map(kbase_device *kbdev) +{ + struct kbase_os_device *osdev = &kbdev->osdev; + int err = -ENOMEM; + + osdev->reg_res = request_mem_region(osdev->reg_start, osdev->reg_size, dev_name(osdev->dev)); + if (!osdev->reg_res) { + dev_err(osdev->dev, "Register window unavailable\n"); + err = -EIO; + goto out_region; + } + + osdev->reg = ioremap(osdev->reg_start, osdev->reg_size); + if (!osdev->reg) { + dev_err(osdev->dev, "Can't remap register window\n"); + err = -EINVAL; + goto out_ioremap; + } + + return 0; + + out_ioremap: + release_resource(osdev->reg_res); + kfree(osdev->reg_res); + out_region: + return err; +} + +static void kbase_common_reg_unmap(kbase_device * const kbdev) +{ + struct kbase_os_device *osdev = &kbdev->osdev; + + iounmap(osdev->reg); + release_resource(osdev->reg_res); + kfree(osdev->reg_res); +} +#endif /* CONFIG_MALI_NO_MALI */ + +static int kbase_common_device_init(kbase_device *kbdev) +{ + struct kbase_os_device *osdev = &kbdev->osdev; + int err = -ENOMEM; + mali_error mali_err; + enum { + inited_mem = (1u << 0), + inited_job_slot = (1u << 1), + inited_pm = (1u << 2), + inited_js = (1u << 3), + inited_irqs = (1u << 4) + , inited_debug = (1u << 5) + , inited_js_softstop = (1u << 6) +#if MALI_CUSTOMER_RELEASE == 0 + , inited_js_timeouts = (1u << 7) +#endif /* MALI_CUSTOMER_RELEASE == 0 */ + /* BASE_HW_ISSUE_8401 */ + , inited_workaround = (1u << 8) + , inited_pm_runtime_init = (1u << 9) + , inited_gpu_memory = (1u << 10) +#ifdef CONFIG_MALI_DEBUG_SHADER_SPLIT_FS + ,inited_sc_split = (1u << 11) +#endif /* CONFIG_MALI_DEBUG_SHADER_SPLIT_FS */ +#ifdef CONFIG_MALI_TRACE_TIMELINE + ,inited_timeline = (1u << 12) +#endif /* CONFIG_MALI_TRACE_LINE */ + }; + + int inited = 0; + + dev_set_drvdata(osdev->dev, kbdev); + + osdev->mdev.minor = MISC_DYNAMIC_MINOR; + osdev->mdev.name = osdev->devname; + osdev->mdev.fops = &kbase_fops; + osdev->mdev.parent = get_device(osdev->dev); + + scnprintf(osdev->devname, DEVNAME_SIZE, "%s%d", kbase_drv_name, kbase_dev_nr++); + + if (misc_register(&osdev->mdev)) { + dev_err(osdev->dev, "Couldn't register misc dev %s\n", osdev->devname); + err = -EINVAL; + goto out_misc; + } + + if (device_create_file(osdev->dev, &dev_attr_power_policy)) { + dev_err(osdev->dev, "Couldn't create power_policy sysfs file\n"); + goto out_file; + } + + if (device_create_file(osdev->dev, &dev_attr_core_availability_policy)) { + dev_err(osdev->dev, "Couldn't create core_availability_policy sysfs file\n"); + goto out_file_core_availability_policy; + } + + if (device_create_file(osdev->dev, &dev_attr_core_mask)) { + dev_err(osdev->dev, "Couldn't create core_mask sysfs file\n"); + goto out_file_core_mask; + } + + down(&kbase_dev_list_lock); + list_add(&osdev->entry, &kbase_dev_list); + up(&kbase_dev_list_lock); + dev_info(osdev->dev, "Probed as %s\n", dev_name(osdev->mdev.this_device)); + + mali_err = kbase_pm_init(kbdev); + if (MALI_ERROR_NONE != mali_err) + goto out_partial; + + inited |= inited_pm; + + if (kbdev->pm.callback_power_runtime_init) { + mali_err = kbdev->pm.callback_power_runtime_init(kbdev); + if (MALI_ERROR_NONE != mali_err) + goto out_partial; + + inited |= inited_pm_runtime_init; + } + + mali_err = kbase_mem_init(kbdev); + if (MALI_ERROR_NONE != mali_err) + goto out_partial; + + inited |= inited_mem; + + mali_err = kbase_job_slot_init(kbdev); + if (MALI_ERROR_NONE != mali_err) + goto out_partial; + + inited |= inited_job_slot; + + mali_err = kbasep_js_devdata_init(kbdev); + if (MALI_ERROR_NONE != mali_err) + goto out_partial; + + inited |= inited_js; + + err = kbase_install_interrupts(kbdev); + if (err) + goto out_partial; + + inited |= inited_irqs; + +#ifdef CONFIG_MALI_DEBUG_SHADER_SPLIT_FS + if (device_create_file(osdev->dev, &dev_attr_sc_split)) + { + dev_err(osdev->dev, "Couldn't create sc_split sysfs file\n"); + goto out_partial; + } + + inited |= inited_sc_split; +#endif /* CONFIG_MALI_DEBUG_SHADER_SPLIT_FS */ + + if (device_create_file(osdev->dev, &dev_attr_gpu_memory)) { + dev_err(osdev->dev, "Couldn't create gpu_memory sysfs file\n"); + goto out_partial; + } + inited |= inited_gpu_memory; +#ifdef CONFIG_MALI_DEBUG + + if (device_create_file(osdev->dev, &dev_attr_debug_command)) { + dev_err(osdev->dev, "Couldn't create debug_command sysfs file\n"); + goto out_partial; + } + inited |= inited_debug; + + if (device_create_file(osdev->dev, &dev_attr_js_softstop_always)) { + dev_err(osdev->dev, "Couldn't create js_softstop_always sysfs file\n"); + goto out_partial; + } + inited |= inited_js_softstop; +#endif /* CONFIG_MALI_DEBUG */ + +#if MALI_CUSTOMER_RELEASE == 0 + if (device_create_file(osdev->dev, &dev_attr_js_timeouts)) { + dev_err(osdev->dev, "Couldn't create js_timeouts sysfs file\n"); + goto out_partial; + } + inited |= inited_js_timeouts; +#endif /* MALI_CUSTOMER_RELEASE */ + +#ifdef CONFIG_MALI_TRACE_TIMELINE + if (kbasep_trace_timeline_debugfs_init(kbdev)) { + dev_err(osdev->dev, "Couldn't create mali_timeline_defs debugfs file\n"); + goto out_partial; + } + inited |= inited_timeline; +#endif /* CONFIG_MALI_TRACE_TIMELINE */ + + if (kbase_hw_has_issue(kbdev, BASE_HW_ISSUE_8401)) { + if (MALI_ERROR_NONE != kbasep_8401_workaround_init(kbdev)) + goto out_partial; + + inited |= inited_workaround; + } + + mali_err = kbase_pm_powerup(kbdev); + if (MALI_ERROR_NONE == mali_err) { +#ifdef CONFIG_MALI_DEBUG +#ifndef CONFIG_MALI_NO_MALI + if (MALI_ERROR_NONE != kbasep_common_test_interrupt_handlers(kbdev)) { + dev_err(osdev->dev, "Interrupt assigment check failed.\n"); + err = -EINVAL; + goto out_partial; + } +#endif /* CONFIG_MALI_NO_MALI */ +#endif /* CONFIG_MALI_DEBUG */ + + /* intialise the kctx list */ + mutex_init(&kbdev->kctx_list_lock); + INIT_LIST_HEAD(&kbdev->kctx_list); + return 0; + } + + out_partial: + if (kbase_hw_has_issue(kbdev, BASE_HW_ISSUE_8401)) { + if (inited & inited_workaround) + kbasep_8401_workaround_term(kbdev); + } +#ifdef CONFIG_MALI_TRACE_TIMELINE + if (inited & inited_timeline) + kbasep_trace_timeline_debugfs_term(kbdev); +#endif /* CONFIG_MALI_TRACE_TIMELINE */ +#if MALI_CUSTOMER_RELEASE == 0 + if (inited & inited_js_timeouts) + device_remove_file(kbdev->osdev.dev, &dev_attr_js_timeouts); +#endif /* MALI_CUSTOMER_RELEASE */ +#ifdef CONFIG_MALI_DEBUG + if (inited & inited_js_softstop) + device_remove_file(kbdev->osdev.dev, &dev_attr_js_softstop_always); + + if (inited & inited_debug) + device_remove_file(kbdev->osdev.dev, &dev_attr_debug_command); + +#endif /* CONFIG_MALI_DEBUG */ + if (inited & inited_gpu_memory) + device_remove_file(kbdev->osdev.dev, &dev_attr_gpu_memory); + +#ifdef CONFIG_MALI_DEBUG_SHADER_SPLIT_FS + if (inited & inited_sc_split) + { + device_remove_file(kbdev->osdev.dev, &dev_attr_sc_split); + } +#endif /* CONFIG_MALI_DEBUG_SHADER_SPLIT_FS */ + + if (inited & inited_js) + kbasep_js_devdata_halt(kbdev); + + if (inited & inited_job_slot) + kbase_job_slot_halt(kbdev); + + if (inited & inited_mem) + kbase_mem_halt(kbdev); + + if (inited & inited_pm) + kbase_pm_halt(kbdev); + + if (inited & inited_irqs) + kbase_release_interrupts(kbdev); + + if (inited & inited_js) + kbasep_js_devdata_term(kbdev); + + if (inited & inited_job_slot) + kbase_job_slot_term(kbdev); + + if (inited & inited_mem) + kbase_mem_term(kbdev); + + if (inited & inited_pm_runtime_init) { + if (kbdev->pm.callback_power_runtime_term) + kbdev->pm.callback_power_runtime_term(kbdev); + } + + if (inited & inited_pm) + kbase_pm_term(kbdev); + + down(&kbase_dev_list_lock); + list_del(&osdev->entry); + up(&kbase_dev_list_lock); + + device_remove_file(kbdev->osdev.dev, &dev_attr_core_mask); + out_file_core_mask: + device_remove_file(kbdev->osdev.dev, &dev_attr_core_availability_policy); + out_file_core_availability_policy: + device_remove_file(kbdev->osdev.dev, &dev_attr_power_policy); + out_file: + misc_deregister(&kbdev->osdev.mdev); + out_misc: + put_device(osdev->dev); + return err; +} + +static int kbase_platform_device_probe(struct platform_device *pdev) +{ + struct kbase_device *kbdev; + struct kbase_os_device *osdev; + struct resource *reg_res; + kbase_attribute *platform_data; + int err; + int i; + struct mali_base_gpu_core_props *core_props; +#ifdef CONFIG_MALI_NO_MALI + mali_error mali_err; +#endif /* CONFIG_MALI_NO_MALI */ + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0) && CONFIG_CHROMEOS + kbase_platform_config *config; + int attribute_count; + struct resource resources[PLATFORM_CONFIG_RESOURCE_COUNT]; + + config = kbase_get_platform_config(); + if (config == NULL) + { + printk(KERN_ERR KBASE_DRV_NAME "couldn't get platform config\n"); + return -ENODEV; + } + + attribute_count = kbasep_get_config_attribute_count(config->attributes); + + kbasep_config_parse_io_resources(config->io_resources, resources); + + err = platform_device_add_data(pdev, config->attributes, attribute_count * sizeof(config->attributes[0])); + if (err) + goto out; +#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0) && CONFIG_CHROMEOS */ + + kbdev = kbase_device_alloc(); + if (!kbdev) { + dev_err(&pdev->dev, "Can't allocate device\n"); + err = -ENOMEM; + goto out; + } + +#ifdef CONFIG_MALI_NO_MALI + mali_err = midg_device_create(kbdev); + if (MALI_ERROR_NONE != mali_err) { + dev_err(&pdev->dev, "Can't initialize dummy model\n"); + err = -ENOMEM; + goto out_midg; + } +#endif /* CONFIG_MALI_NO_MALI */ + + osdev = &kbdev->osdev; + osdev->dev = &pdev->dev; + platform_data = (kbase_attribute *) osdev->dev->platform_data; + + if (NULL == platform_data) { + dev_err(osdev->dev, "Platform data not specified\n"); + err = -ENOENT; + goto out_free_dev; + } + + if (MALI_TRUE != kbasep_validate_configuration_attributes(kbdev, platform_data)) { + dev_err(osdev->dev, "Configuration attributes failed to validate\n"); + err = -EINVAL; + goto out_free_dev; + } + kbdev->config_attributes = platform_data; + + /* 3 IRQ resources */ + for (i = 0; i < 3; i++) { + struct resource *irq_res; + + irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, i); + if (!irq_res) { + dev_err(osdev->dev, "No IRQ resource at index %d\n", i); + err = -ENOENT; + goto out_free_dev; + } + + osdev->irqs[i].irq = irq_res->start; + osdev->irqs[i].flags = (irq_res->flags & IRQF_TRIGGER_MASK); + } + + /* the first memory resource is the physical address of the GPU registers */ + reg_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!reg_res) { + dev_err(&pdev->dev, "Invalid register resource\n"); + err = -ENOENT; + goto out_free_dev; + } + + osdev->reg_start = reg_res->start; + osdev->reg_size = resource_size(reg_res); + + err = kbase_common_reg_map(kbdev); + if (err) + goto out_free_dev; + + if (MALI_ERROR_NONE != kbase_device_init(kbdev)) { + dev_err(&pdev->dev, "Can't initialize device\n"); + err = -ENOMEM; + goto out_reg_unmap; + } +#ifdef CONFIG_UMP + kbdev->memdev.ump_device_id = kbasep_get_config_value(kbdev, platform_data, KBASE_CONFIG_ATTR_UMP_DEVICE); +#endif /* CONFIG_UMP */ + + kbdev->memdev.per_process_memory_limit = kbasep_get_config_value(kbdev, platform_data, KBASE_CONFIG_ATTR_MEMORY_PER_PROCESS_LIMIT); + + /* obtain min/max configured gpu frequencies */ + core_props = &(kbdev->gpu_props.props.core_props); + core_props->gpu_freq_khz_min = kbasep_get_config_value(kbdev, platform_data, KBASE_CONFIG_ATTR_GPU_FREQ_KHZ_MIN); + core_props->gpu_freq_khz_max = kbasep_get_config_value(kbdev, platform_data, KBASE_CONFIG_ATTR_GPU_FREQ_KHZ_MAX); + kbdev->gpu_props.irq_throttle_time_us = kbasep_get_config_value(kbdev, platform_data, KBASE_CONFIG_ATTR_GPU_IRQ_THROTTLE_TIME_US); + + err = kbase_common_device_init(kbdev); + if (err) { + dev_err(osdev->dev, "Failed kbase_common_device_init\n"); + goto out_term_dev; + } + return 0; + + out_term_dev: + kbase_device_term(kbdev); + out_reg_unmap: + kbase_common_reg_unmap(kbdev); + out_free_dev: +#ifdef CONFIG_MALI_NO_MALI + midg_device_destroy(kbdev); + out_midg: +#endif /* CONFIG_MALI_NO_MALI */ + kbase_device_free(kbdev); + out: + return err; +} + +static int kbase_common_device_remove(struct kbase_device *kbdev) +{ + if (kbase_hw_has_issue(kbdev, BASE_HW_ISSUE_8401)) + kbasep_8401_workaround_term(kbdev); + + if (kbdev->pm.callback_power_runtime_term) + kbdev->pm.callback_power_runtime_term(kbdev); + + /* Remove the sys power policy file */ + device_remove_file(kbdev->osdev.dev, &dev_attr_power_policy); + device_remove_file(kbdev->osdev.dev, &dev_attr_core_availability_policy); + device_remove_file(kbdev->osdev.dev, &dev_attr_core_mask); + +#ifdef CONFIG_MALI_TRACE_TIMELINE + kbasep_trace_timeline_debugfs_term(kbdev); +#endif /* CONFIG_MALI_TRACE_TIMELINE */ + +#ifdef CONFIG_MALI_DEBUG + device_remove_file(kbdev->osdev.dev, &dev_attr_js_softstop_always); + device_remove_file(kbdev->osdev.dev, &dev_attr_debug_command); +#endif /* CONFIG_MALI_DEBUG */ + device_remove_file(kbdev->osdev.dev, &dev_attr_gpu_memory); + +#ifdef CONFIG_MALI_DEBUG_SHADER_SPLIT_FS + device_remove_file(kbdev->osdev.dev, &dev_attr_sc_split); +#endif /* CONFIG_MALI_DEBUG_SHADER_SPLIT_FS */ + + kbasep_js_devdata_halt(kbdev); + kbase_job_slot_halt(kbdev); + kbase_mem_halt(kbdev); + kbase_pm_halt(kbdev); + + kbase_release_interrupts(kbdev); + + kbasep_js_devdata_term(kbdev); + kbase_job_slot_term(kbdev); + kbase_mem_term(kbdev); + kbase_pm_term(kbdev); + + down(&kbase_dev_list_lock); + list_del(&kbdev->osdev.entry); + up(&kbase_dev_list_lock); + + misc_deregister(&kbdev->osdev.mdev); + put_device(kbdev->osdev.dev); + kbase_common_reg_unmap(kbdev); + kbase_device_term(kbdev); +#ifdef CONFIG_MALI_NO_MALI + midg_device_destroy(kbdev); +#endif /* CONFIG_MALI_NO_MALI */ + kbase_device_free(kbdev); + + return 0; +} + +static int kbase_platform_device_remove(struct platform_device *pdev) +{ + struct kbase_device *kbdev = to_kbase_device(&pdev->dev); + + if (!kbdev) + return -ENODEV; + + return kbase_common_device_remove(kbdev); +} + +/** Suspend callback from the OS. + * + * This is called by Linux when the device should suspend. + * + * @param dev The device to suspend + * + * @return A standard Linux error code + */ +static int kbase_device_suspend(struct device *dev) +{ + struct kbase_device *kbdev = to_kbase_device(dev); + + if (!kbdev) + return -ENODEV; + + kbase_pm_suspend(kbdev); + return 0; +} + +/** Resume callback from the OS. + * + * This is called by Linux when the device should resume from suspension. + * + * @param dev The device to resume + * + * @return A standard Linux error code + */ +static int kbase_device_resume(struct device *dev) +{ + struct kbase_device *kbdev = to_kbase_device(dev); + + if (!kbdev) + return -ENODEV; + + kbase_pm_resume(kbdev); + return 0; +} + +/** Runtime suspend callback from the OS. + * + * This is called by Linux when the device should prepare for a condition in which it will + * not be able to communicate with the CPU(s) and RAM due to power management. + * + * @param dev The device to suspend + * + * @return A standard Linux error code + */ +#ifdef CONFIG_PM_RUNTIME +static int kbase_device_runtime_suspend(struct device *dev) +{ + struct kbase_device *kbdev = to_kbase_device(dev); + + if (!kbdev) + return -ENODEV; + + if (kbdev->pm.callback_power_runtime_off) { + kbdev->pm.callback_power_runtime_off(kbdev); + KBASE_DEBUG_PRINT_INFO(KBASE_PM, "runtime suspend\n"); + } + return 0; +} +#endif /* CONFIG_PM_RUNTIME */ + +/** Runtime resume callback from the OS. + * + * This is called by Linux when the device should go into a fully active state. + * + * @param dev The device to suspend + * + * @return A standard Linux error code + */ + +#ifdef CONFIG_PM_RUNTIME +int kbase_device_runtime_resume(struct device *dev) +{ + int ret = 0; + struct kbase_device *kbdev = to_kbase_device(dev); + + if (!kbdev) + return -ENODEV; + + if (kbdev->pm.callback_power_runtime_on) { + ret = kbdev->pm.callback_power_runtime_on(kbdev); + KBASE_DEBUG_PRINT_INFO(KBASE_PM, "runtime resume\n"); + } + return ret; +} +#endif /* CONFIG_PM_RUNTIME */ + +/** Runtime idle callback from the OS. + * + * This is called by Linux when the device appears to be inactive and it might be + * placed into a low power state + * + * @param dev The device to suspend + * + * @return A standard Linux error code + */ + +#ifdef CONFIG_PM_RUNTIME +static int kbase_device_runtime_idle(struct device *dev) +{ + /* Avoid pm_runtime_suspend being called */ + return 1; +} +#endif /* CONFIG_PM_RUNTIME */ + +/** The power management operations for the platform driver. + */ +static const struct dev_pm_ops kbase_pm_ops = { + .suspend = kbase_device_suspend, + .resume = kbase_device_resume, +#ifdef CONFIG_PM_RUNTIME + .runtime_suspend = kbase_device_runtime_suspend, + .runtime_resume = kbase_device_runtime_resume, + .runtime_idle = kbase_device_runtime_idle, +#endif /* CONFIG_PM_RUNTIME */ +}; + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0) && CONFIG_CHROMEOS +static const struct of_device_id mali_of_match[] = { + { + .compatible = "arm,mali", + }, + {}, +}; +MODULE_DEVICE_TABLE(of, mali_of_match); +#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0) && CONFIG_CHROMEOS */ + +static struct platform_driver kbase_platform_driver = { + .probe = kbase_platform_device_probe, + .remove = kbase_platform_device_remove, + .driver = { + .name = kbase_drv_name, + .owner = THIS_MODULE, + .pm = &kbase_pm_ops, +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0) && CONFIG_CHROMEOS + .of_match_table = mali_of_match, +#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0) && CONFIG_CHROMEOS */ + }, +}; + +#ifdef CONFIG_MALI_PLATFORM_FAKE +static struct platform_device *mali_device; +#endif /* CONFIG_MALI_PLATFORM_FAKE */ + +static int __init kbase_driver_init(void) +{ + int err; +#ifdef CONFIG_MALI_PLATFORM_FAKE +#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 8, 0)) || !CONFIG_CHROMEOS + kbase_platform_config *config; + int attribute_count; + struct resource resources[PLATFORM_CONFIG_RESOURCE_COUNT]; + + config = kbase_get_platform_config(); + if (config == NULL) + { + printk(KERN_ERR KBASE_DRV_NAME "couldn't get platform config\n"); + return -ENODEV; + } + + attribute_count = kbasep_get_config_attribute_count(config->attributes); +#ifdef CONFIG_MACH_MANTA + err = platform_device_add_data(&exynos5_device_g3d, config->attributes, attribute_count * sizeof(config->attributes[0])); + if (err) + return err; +#else + + mali_device = platform_device_alloc(kbase_drv_name, 0); + if (mali_device == NULL) + return -ENOMEM; + + kbasep_config_parse_io_resources(config->io_resources, resources); + err = platform_device_add_resources(mali_device, resources, PLATFORM_CONFIG_RESOURCE_COUNT); + if (err) { + platform_device_put(mali_device); + mali_device = NULL; + return err; + } + + err = platform_device_add_data(mali_device, config->attributes, attribute_count * sizeof(config->attributes[0])); + if (err) { + platform_device_unregister(mali_device); + mali_device = NULL; + return err; + } + + err = platform_device_add(mali_device); + if (err) { + platform_device_unregister(mali_device); + mali_device = NULL; + return err; + } +#endif /* CONFIG_CONFIG_MACH_MANTA */ +#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(3, 8, 0)) || !CONFIG_CHROMEOS */ +#endif /* CONFIG_MALI_PLATFORM_FAKE */ + err = platform_driver_register(&kbase_platform_driver); + if (err) + return err; + + return 0; +} + +static void __exit kbase_driver_exit(void) +{ + platform_driver_unregister(&kbase_platform_driver); +#ifdef CONFIG_MALI_PLATFORM_FAKE + if (mali_device) + platform_device_unregister(mali_device); +#endif /* CONFIG_MALI_PLATFORM_FAKE */ +} + +module_init(kbase_driver_init); +module_exit(kbase_driver_exit); + +MODULE_LICENSE("GPL"); +MODULE_VERSION(MALI_RELEASE_NAME); + +#ifdef CONFIG_MALI_GATOR_SUPPORT +/* Create the trace points (otherwise we just get code to call a tracepoint) */ +#define CREATE_TRACE_POINTS +#include "mali_linux_trace.h" + +void kbase_trace_mali_pm_status(u32 event, u64 value) +{ + trace_mali_pm_status(event, value); +} + +void kbase_trace_mali_pm_power_off(u32 event, u64 value) +{ + trace_mali_pm_power_off(event, value); +} + +void kbase_trace_mali_pm_power_on(u32 event, u64 value) +{ + trace_mali_pm_power_on(event, value); +} + +void kbase_trace_mali_job_slots_event(u32 event, const kbase_context *kctx) +{ + trace_mali_job_slots_event(event, (kctx != NULL ? kctx->osctx.tgid : 0), 0); +} + +void kbase_trace_mali_page_fault_insert_pages(int event, u32 value) +{ + trace_mali_page_fault_insert_pages(event, value); +} + +void kbase_trace_mali_mmu_as_in_use(int event) +{ + trace_mali_mmu_as_in_use(event); +} + +void kbase_trace_mali_mmu_as_released(int event) +{ + trace_mali_mmu_as_released(event); +} + +void kbase_trace_mali_total_alloc_pages_change(long long int event) +{ + trace_mali_total_alloc_pages_change(event); +} +#endif /* CONFIG_MALI_GATOR_SUPPORT */ |