import PULS_20160108

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / misc / mediatek / gpu / mt8127 / mali / mali / linux / mali_ukk_core.c

diff --git a/drivers/misc/mediatek/gpu/mt8127/mali/mali/linux/mali_ukk_core.c b/drivers/misc/mediatek/gpu/mt8127/mali/mali/linux/mali_ukk_core.c
new file mode 100644 (file)
index 0000000..281089b
--- /dev/null
+++ b/drivers/misc/mediatek/gpu/mt8127/mali/mali/linux/mali_ukk_core.c
@@ -0,0 +1,113 @@
+/*
+ * This confidential and proprietary software may be used only as
+ * authorised by a licensing agreement from ARM Limited
+ * (C) COPYRIGHT 2008-2013 ARM Limited
+ * ALL RIGHTS RESERVED
+ * The entire notice above must be reproduced on all authorised
+ * copies and copies may only be made to the extent permitted
+ * by a licensing agreement from ARM Limited.
+ */
+#include <linux/fs.h>       /* file system operations */
+#include <linux/slab.h>     /* memort allocation functions */
+#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"
+
+int get_api_version_wrapper(struct mali_session_data *session_data, _mali_uk_get_api_version_s __user *uargs)
+{
+       _mali_uk_get_api_version_s kargs;
+       _mali_osk_errcode_t err;
+
+       MALI_CHECK_NON_NULL(uargs, -EINVAL);
+
+       if (0 != get_user(kargs.version, &uargs->version)) return -EFAULT;
+
+       kargs.ctx = session_data;
+       err = _mali_ukk_get_api_version(&kargs);
+       if (_MALI_OSK_ERR_OK != err) return map_errcode(err);
+
+       if (0 != put_user(kargs.version, &uargs->version)) return -EFAULT;
+       if (0 != put_user(kargs.compatible, &uargs->compatible)) return -EFAULT;
+
+       return 0;
+}
+
+int wait_for_notification_wrapper(struct mali_session_data *session_data, _mali_uk_wait_for_notification_s __user *uargs)
+{
+       _mali_uk_wait_for_notification_s kargs;
+       _mali_osk_errcode_t err;
+
+       MALI_CHECK_NON_NULL(uargs, -EINVAL);
+
+       kargs.ctx = session_data;
+       err = _mali_ukk_wait_for_notification(&kargs);
+       if (_MALI_OSK_ERR_OK != err) return map_errcode(err);
+
+       if(_MALI_NOTIFICATION_CORE_SHUTDOWN_IN_PROGRESS != kargs.type) {
+               kargs.ctx = NULL; /* prevent kernel address to be returned to user space */
+               if (0 != copy_to_user(uargs, &kargs, sizeof(_mali_uk_wait_for_notification_s))) return -EFAULT;
+       } else {
+               if (0 != put_user(kargs.type, &uargs->type)) return -EFAULT;
+       }
+
+       return 0;
+}
+
+int post_notification_wrapper(struct mali_session_data *session_data, _mali_uk_post_notification_s __user *uargs)
+{
+       _mali_uk_post_notification_s kargs;
+       _mali_osk_errcode_t err;
+
+       MALI_CHECK_NON_NULL(uargs, -EINVAL);
+
+       kargs.ctx = session_data;
+
+       if (0 != get_user(kargs.type, &uargs->type)) {
+               return -EFAULT;
+       }
+
+       err = _mali_ukk_post_notification(&kargs);
+       if (_MALI_OSK_ERR_OK != err) {
+               return map_errcode(err);
+       }
+
+       return 0;
+}
+
+int get_user_settings_wrapper(struct mali_session_data *session_data, _mali_uk_get_user_settings_s __user *uargs)
+{
+       _mali_uk_get_user_settings_s kargs;
+       _mali_osk_errcode_t err;
+
+       MALI_CHECK_NON_NULL(uargs, -EINVAL);
+
+       kargs.ctx = session_data;
+       err = _mali_ukk_get_user_settings(&kargs);
+       if (_MALI_OSK_ERR_OK != err) {
+               return map_errcode(err);
+       }
+
+       kargs.ctx = NULL; /* prevent kernel address to be returned to user space */
+       if (0 != copy_to_user(uargs, &kargs, sizeof(_mali_uk_get_user_settings_s))) return -EFAULT;
+
+       return 0;
+}
+
+int request_high_priority_wrapper(struct mali_session_data *session_data, _mali_uk_request_high_priority_s __user *uargs)
+{
+       _mali_uk_request_high_priority_s kargs;
+       _mali_osk_errcode_t err;
+
+       MALI_CHECK_NON_NULL(uargs, -EINVAL);
+
+       kargs.ctx = session_data;
+       err = _mali_ukk_request_high_priority(&kargs);
+
+       kargs.ctx = NULL;
+
+       return map_errcode(err);
+}