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path: root/drivers/gpu/arm/utgard/linux/mali_ukk_soft_job.c
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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.c90
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);
+}