diff options
Diffstat (limited to 'drivers/gpu/arm/utgard/linux/mali_ukk_soft_job.c')
-rw-r--r-- | drivers/gpu/arm/utgard/linux/mali_ukk_soft_job.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/drivers/gpu/arm/utgard/linux/mali_ukk_soft_job.c b/drivers/gpu/arm/utgard/linux/mali_ukk_soft_job.c new file mode 100644 index 000000000000..11c70060e489 --- /dev/null +++ b/drivers/gpu/arm/utgard/linux/mali_ukk_soft_job.c @@ -0,0 +1,90 @@ +/* + * Copyright (C) 2013-2015 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. + */ +#include <linux/fs.h> /* file system operations */ +#include <asm/uaccess.h> /* user space access */ + +#include "mali_ukk.h" +#include "mali_osk.h" +#include "mali_kernel_common.h" +#include "mali_session.h" +#include "mali_ukk_wrappers.h" + +#include "mali_soft_job.h" +#include "mali_timeline.h" + +int soft_job_start_wrapper(struct mali_session_data *session, _mali_uk_soft_job_start_s __user *uargs) +{ + _mali_uk_soft_job_start_s kargs; + u32 type, point; + u64 user_job; + struct mali_timeline_fence fence; + struct mali_soft_job *job = NULL; + u32 __user *job_id_ptr = NULL; + + /* If the job was started successfully, 0 is returned. If there was an error, but the job + * was started, we return -ENOENT. For anything else returned, the job was not started. */ + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + MALI_CHECK_NON_NULL(session, -EINVAL); + + MALI_DEBUG_ASSERT_POINTER(session->soft_job_system); + + if (0 != copy_from_user(&kargs, uargs, sizeof(kargs))) { + return -EFAULT; + } + + type = kargs.type; + user_job = kargs.user_job; + job_id_ptr = (u32 __user *)(uintptr_t)kargs.job_id_ptr; + + mali_timeline_fence_copy_uk_fence(&fence, &kargs.fence); + + if ((MALI_SOFT_JOB_TYPE_USER_SIGNALED != type) && (MALI_SOFT_JOB_TYPE_SELF_SIGNALED != type)) { + MALI_DEBUG_PRINT_ERROR(("Invalid soft job type specified\n")); + return -EINVAL; + } + + /* Create soft job. */ + job = mali_soft_job_create(session->soft_job_system, (enum mali_soft_job_type)type, user_job); + if (unlikely(NULL == job)) { + return map_errcode(_MALI_OSK_ERR_NOMEM); + } + + /* Write job id back to user space. */ + if (0 != put_user(job->id, job_id_ptr)) { + MALI_PRINT_ERROR(("Mali Soft Job: failed to put job id")); + mali_soft_job_destroy(job); + return map_errcode(_MALI_OSK_ERR_NOMEM); + } + + /* Start soft job. */ + point = mali_soft_job_start(job, &fence); + + if (0 != put_user(point, &uargs->point)) { + /* Let user space know that something failed after the job was started. */ + return -ENOENT; + } + + return 0; +} + +int soft_job_signal_wrapper(struct mali_session_data *session, _mali_uk_soft_job_signal_s __user *uargs) +{ + u32 job_id; + _mali_osk_errcode_t err; + + MALI_DEBUG_ASSERT_POINTER(session); + + if (0 != get_user(job_id, &uargs->job_id)) return -EFAULT; + + err = mali_soft_job_system_signal_job(session->soft_job_system, job_id); + + return map_errcode(err); +} |