drivers/misc/mediatek/gpu/mt8127/mali/mali/linux/mali_ukk_timeline.c

   1 /*
   2  * This confidential and proprietary software may be used only as
   3  * authorised by a licensing agreement from ARM Limited
   4  * (C) COPYRIGHT 2013, 2015 ARM Limited
   5  * ALL RIGHTS RESERVED
   6  * The entire notice above must be reproduced on all authorised
   7  * copies and copies may only be made to the extent permitted
   8  * by a licensing agreement from ARM Limited.
   9  */
  10 #include <linux/fs.h>       /* file system operations */
  11 #include <asm/uaccess.h>    /* user space access */
  12
  13 #include "mali_ukk.h"
  14 #include "mali_osk.h"
  15 #include "mali_kernel_common.h"
  16 #include "mali_session.h"
  17 #include "mali_ukk_wrappers.h"
  18
  19 #include "mali_timeline.h"
  20 #include "mali_timeline_fence_wait.h"
  21 #include "mali_timeline_sync_fence.h"
  22
  23 int timeline_get_latest_point_wrapper(struct mali_session_data *session, _mali_uk_timeline_get_latest_point_s __user *uargs)
  24 {
  25         u32 val;
  26         mali_timeline_id timeline;
  27         mali_timeline_point point;
  28
  29         MALI_DEBUG_ASSERT_POINTER(session);
  30
  31         if (0 != get_user(val, &uargs->timeline)) return -EFAULT;
  32
  33         if (MALI_UK_TIMELINE_MAX <= val) {
  34                 return -EINVAL;
  35         }
  36
  37         timeline = (mali_timeline_id)val;
  38
  39         point = mali_timeline_system_get_latest_point(session->timeline_system, timeline);
  40
  41         if (0 != put_user(point, &uargs->point)) return -EFAULT;
  42
  43         return 0;
  44 }
  45
  46 int timeline_wait_wrapper(struct mali_session_data *session, _mali_uk_timeline_wait_s __user *uargs)
  47 {
  48         u32 timeout, status;
  49         mali_bool ret;
  50         _mali_uk_fence_t uk_fence;
  51         struct mali_timeline_fence fence;
  52
  53         MALI_DEBUG_ASSERT_POINTER(session);
  54
  55         if (0 != copy_from_user(&uk_fence, &uargs->fence, sizeof(_mali_uk_fence_t))) return -EFAULT;
  56         if (0 != get_user(timeout, &uargs->timeout)) return -EFAULT;
  57
  58         mali_timeline_fence_copy_uk_fence(&fence, &uk_fence);
  59
  60         ret = mali_timeline_fence_wait(session->timeline_system, &fence, timeout);
  61         status = (MALI_TRUE == ret ? 1 : 0);
  62
  63         if (0 != put_user(status, &uargs->status)) return -EFAULT;
  64
  65         return 0;
  66 }
  67
  68 int timeline_create_sync_fence_wrapper(struct mali_session_data *session, _mali_uk_timeline_create_sync_fence_s __user *uargs)
  69 {
  70         s32 sync_fd = -1;
  71         _mali_uk_fence_t uk_fence;
  72         struct mali_timeline_fence fence;
  73
  74         MALI_DEBUG_ASSERT_POINTER(session);
  75
  76         if (0 != copy_from_user(&uk_fence, &uargs->fence, sizeof(_mali_uk_fence_t))) return -EFAULT;
  77         mali_timeline_fence_copy_uk_fence(&fence, &uk_fence);
  78
  79 #if defined(CONFIG_SYNC)
  80         sync_fd = mali_timeline_sync_fence_create(session->timeline_system, &fence);
  81 #else
  82         sync_fd = -1;
  83 #endif /* defined(CONFIG_SYNC) */
  84
  85         if (0 != put_user(sync_fd, &uargs->sync_fd)) return -EFAULT;
  86
  87         return 0;
  88 }