dirty fix to merging

1 files changed, 280 insertions, 0 deletions

diff --git a/drivers/gpu/mali/ump/linux/ump_ukk_wrappers.c b/drivers/gpu/mali/ump/linux/ump_ukk_wrappers.c
new file mode 100644
index 00000000..49d58d79
--- /dev/null
+++ b/drivers/gpu/mali/ump/linux/ump_ukk_wrappers.c
@@ -0,0 +1,280 @@
+/*
+ * Copyright (C) 2010-2014 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 ump_ukk_wrappers.c
+ * Defines the wrapper functions which turn Linux IOCTL calls into _ukk_ calls
+ */
+
+#include <asm/uaccess.h>             /* user space access */
+
+#include "ump_osk.h"
+#include "ump_uk_types.h"
+#include "ump_ukk.h"
+#include "ump_kernel_common.h"
+
+/*
+ * IOCTL operation; Negotiate version of IOCTL API
+ */
+int ump_get_api_version_wrapper(u32 __user *argument, struct ump_session_data *session_data)
+{
+	_ump_uk_api_version_s version_info;
+	_mali_osk_errcode_t err;
+
+	/* Sanity check input parameters */
+	if (NULL == argument || NULL == session_data) {
+		MSG_ERR(("NULL parameter in ump_ioctl_get_api_version()\n"));
+		return -ENOTTY;
+	}
+
+	/* Copy the user space memory to kernel space (so we safely can read it) */
+	if (0 != copy_from_user(&version_info, argument, sizeof(version_info))) {
+		MSG_ERR(("copy_from_user() in ump_ioctl_get_api_version()\n"));
+		return -EFAULT;
+	}
+
+	version_info.ctx = (void *) session_data;
+	err = _ump_uku_get_api_version(&version_info);
+	if (_MALI_OSK_ERR_OK != err) {
+		MSG_ERR(("_ump_uku_get_api_version() failed in ump_ioctl_get_api_version()\n"));
+		return map_errcode(err);
+	}
+
+	version_info.ctx = NULL;
+
+	/* Copy ouput data back to user space */
+	if (0 != copy_to_user(argument, &version_info, sizeof(version_info))) {
+		MSG_ERR(("copy_to_user() failed in ump_ioctl_get_api_version()\n"));
+		return -EFAULT;
+	}
+
+	return 0; /* success */
+}
+
+
+/*
+ * IOCTL operation; Release reference to specified UMP memory.
+ */
+int ump_release_wrapper(u32 __user *argument, struct ump_session_data   *session_data)
+{
+	_ump_uk_release_s release_args;
+	_mali_osk_errcode_t err;
+
+	/* Sanity check input parameters */
+	if (NULL == session_data) {
+		MSG_ERR(("NULL parameter in ump_ioctl_release()\n"));
+		return -ENOTTY;
+	}
+
+	/* Copy the user space memory to kernel space (so we safely can read it) */
+	if (0 != copy_from_user(&release_args, argument, sizeof(release_args))) {
+		MSG_ERR(("copy_from_user() in ump_ioctl_get_api_version()\n"));
+		return -EFAULT;
+	}
+
+	release_args.ctx = (void *) session_data;
+	err = _ump_ukk_release(&release_args);
+	if (_MALI_OSK_ERR_OK != err) {
+		MSG_ERR(("_ump_ukk_release() failed in ump_ioctl_release()\n"));
+		return map_errcode(err);
+	}
+
+
+	return 0; /* success */
+}
+
+/*
+ * IOCTL operation; Return size for specified UMP memory.
+ */
+int ump_size_get_wrapper(u32 __user *argument, struct ump_session_data   *session_data)
+{
+	_ump_uk_size_get_s user_interaction;
+	_mali_osk_errcode_t err;
+
+	/* Sanity check input parameters */
+	if (NULL == argument || NULL == session_data) {
+		MSG_ERR(("NULL parameter in ump_ioctl_size_get()\n"));
+		return -ENOTTY;
+	}
+
+	if (0 != copy_from_user(&user_interaction, argument, sizeof(user_interaction))) {
+		MSG_ERR(("copy_from_user() in ump_ioctl_size_get()\n"));
+		return -EFAULT;
+	}
+
+	user_interaction.ctx = (void *) session_data;
+	err = _ump_ukk_size_get(&user_interaction);
+	if (_MALI_OSK_ERR_OK != err) {
+		MSG_ERR(("_ump_ukk_size_get() failed in ump_ioctl_size_get()\n"));
+		return map_errcode(err);
+	}
+
+	user_interaction.ctx = NULL;
+
+	if (0 != copy_to_user(argument, &user_interaction, sizeof(user_interaction))) {
+		MSG_ERR(("copy_to_user() failed in ump_ioctl_size_get()\n"));
+		return -EFAULT;
+	}
+
+	return 0; /* success */
+}
+
+/*
+ * IOCTL operation; Do cache maintenance on specified UMP memory.
+ */
+int ump_msync_wrapper(u32 __user *argument, struct ump_session_data   *session_data)
+{
+	_ump_uk_msync_s user_interaction;
+
+	/* Sanity check input parameters */
+	if (NULL == argument || NULL == session_data) {
+		MSG_ERR(("NULL parameter in ump_ioctl_size_get()\n"));
+		return -ENOTTY;
+	}
+
+	if (0 != copy_from_user(&user_interaction, argument, sizeof(user_interaction))) {
+		MSG_ERR(("copy_from_user() in ump_ioctl_msync()\n"));
+		return -EFAULT;
+	}
+
+	user_interaction.ctx = (void *) session_data;
+
+	_ump_ukk_msync(&user_interaction);
+
+	user_interaction.ctx = NULL;
+
+	if (0 != copy_to_user(argument, &user_interaction, sizeof(user_interaction))) {
+		MSG_ERR(("copy_to_user() failed in ump_ioctl_msync()\n"));
+		return -EFAULT;
+	}
+
+	return 0; /* success */
+}
+int ump_cache_operations_control_wrapper(u32 __user *argument, struct ump_session_data   *session_data)
+{
+	_ump_uk_cache_operations_control_s user_interaction;
+
+	/* Sanity check input parameters */
+	if (NULL == argument || NULL == session_data) {
+		MSG_ERR(("NULL parameter in ump_ioctl_size_get()\n"));
+		return -ENOTTY;
+	}
+
+	if (0 != copy_from_user(&user_interaction, argument, sizeof(user_interaction))) {
+		MSG_ERR(("copy_from_user() in ump_ioctl_cache_operations_control()\n"));
+		return -EFAULT;
+	}
+
+	user_interaction.ctx = (void *) session_data;
+
+	_ump_ukk_cache_operations_control((_ump_uk_cache_operations_control_s *) &user_interaction);
+
+	user_interaction.ctx = NULL;
+
+#if 0  /* No data to copy back */
+	if (0 != copy_to_user(argument, &user_interaction, sizeof(user_interaction))) {
+		MSG_ERR(("copy_to_user() failed in ump_ioctl_cache_operations_control()\n"));
+		return -EFAULT;
+	}
+#endif
+	return 0; /* success */
+}
+
+int ump_switch_hw_usage_wrapper(u32 __user *argument, struct ump_session_data   *session_data)
+{
+	_ump_uk_switch_hw_usage_s user_interaction;
+
+	/* Sanity check input parameters */
+	if (NULL == argument || NULL == session_data) {
+		MSG_ERR(("NULL parameter in ump_ioctl_size_get()\n"));
+		return -ENOTTY;
+	}
+
+	if (0 != copy_from_user(&user_interaction, argument, sizeof(user_interaction))) {
+		MSG_ERR(("copy_from_user() in ump_ioctl_switch_hw_usage()\n"));
+		return -EFAULT;
+	}
+
+	user_interaction.ctx = (void *) session_data;
+
+	_ump_ukk_switch_hw_usage(&user_interaction);
+
+	user_interaction.ctx = NULL;
+
+#if 0  /* No data to copy back */
+	if (0 != copy_to_user(argument, &user_interaction, sizeof(user_interaction))) {
+		MSG_ERR(("copy_to_user() failed in ump_ioctl_switch_hw_usage()\n"));
+		return -EFAULT;
+	}
+#endif
+	return 0; /* success */
+}
+
+int ump_lock_wrapper(u32 __user *argument, struct ump_session_data   *session_data)
+{
+	_ump_uk_lock_s user_interaction;
+
+	/* Sanity check input parameters */
+	if (NULL == argument || NULL == session_data) {
+		MSG_ERR(("NULL parameter in ump_ioctl_size_get()\n"));
+		return -ENOTTY;
+	}
+
+	if (0 != copy_from_user(&user_interaction, argument, sizeof(user_interaction))) {
+		MSG_ERR(("copy_from_user() in ump_ioctl_switch_hw_usage()\n"));
+		return -EFAULT;
+	}
+
+	user_interaction.ctx = (void *) session_data;
+
+	_ump_ukk_lock(&user_interaction);
+
+	user_interaction.ctx = NULL;
+
+#if 0  /* No data to copy back */
+	if (0 != copy_to_user(argument, &user_interaction, sizeof(user_interaction))) {
+		MSG_ERR(("copy_to_user() failed in ump_ioctl_switch_hw_usage()\n"));
+		return -EFAULT;
+	}
+#endif
+
+	return 0; /* success */
+}
+
+int ump_unlock_wrapper(u32 __user *argument, struct ump_session_data   *session_data)
+{
+	_ump_uk_unlock_s user_interaction;
+
+	/* Sanity check input parameters */
+	if (NULL == argument || NULL == session_data) {
+		MSG_ERR(("NULL parameter in ump_ioctl_size_get()\n"));
+		return -ENOTTY;
+	}
+
+	if (0 != copy_from_user(&user_interaction, argument, sizeof(user_interaction))) {
+		MSG_ERR(("copy_from_user() in ump_ioctl_switch_hw_usage()\n"));
+		return -EFAULT;
+	}
+
+	user_interaction.ctx = (void *) session_data;
+
+	_ump_ukk_unlock(&user_interaction);
+
+	user_interaction.ctx = NULL;
+
+#if 0  /* No data to copy back */
+	if (0 != copy_to_user(argument, &user_interaction, sizeof(user_interaction))) {
+		MSG_ERR(("copy_to_user() failed in ump_ioctl_switch_hw_usage()\n"));
+		return -EFAULT;
+	}
+#endif
+
+	return 0; /* success */
+}