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/*
*
* (C) COPYRIGHT 2010-2011 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 <kbase/src/common/mali_kbase.h>
#ifdef __KERNEL__
#define beenthere(f, a...) pr_debug("%s:" f, __func__, ##a)
#else
#define beenthere(f, a...) OSK_PRINT_INFO(OSK_BASE_EVENT, "%s:" f, __func__, ##a)
#endif
static void *kbase_event_process(kbase_context *ctx,
kbase_event *event)
{
void *data;
void *ptr = event;
/*
* We're in the right user context, do some post processing
* before returning to user-mode.
*/
OSK_ASSERT(event->event_code);
if ((event->event_code & BASE_JD_SW_EVENT_TYPE_MASK) == BASE_JD_SW_EVENT_JOB)
{
kbase_jd_atom *katom = (void *)event->data;
/* return the offset in the ring buffer... */
data = (void *)((uintptr_t)katom->user_atom - (uintptr_t)ctx->jctx.pool);
/* perform the sync operations only on successful jobs */
kbase_post_job_sync(ctx,
base_jd_get_atom_syncset(katom->user_atom, 0),
katom->nr_syncsets);
ptr = katom;
/* As the event is integral part of the katom, return
* immediatly... */
goto out;
}
if ((event->event_code & BASE_JD_SW_EVENT_TYPE_MASK) == BASE_JD_SW_EVENT_BAG)
{
ptr = CONTAINER_OF(event, kbase_jd_bag, event);
goto assign;
}
assign:
data = (void *)event->data; /* recast to discard const) */
out:
osk_free(ptr);
return data;
}
int kbase_event_pending(kbase_context *ctx)
{
int ret;
OSK_ASSERT(ctx);
osk_mutex_lock(&ctx->event_mutex);
ret = (MALI_FALSE == OSK_DLIST_IS_EMPTY(&ctx->event_list)) || (MALI_TRUE == ctx->event_closed);
osk_mutex_unlock(&ctx->event_mutex);
return ret;
}
KBASE_EXPORT_TEST_API(kbase_event_pending)
int kbase_event_dequeue(kbase_context *ctx, base_jd_event *uevent)
{
kbase_event *event;
OSK_ASSERT(ctx);
osk_mutex_lock(&ctx->event_mutex);
if (OSK_DLIST_IS_EMPTY(&ctx->event_list))
{
if (ctx->event_closed)
{
/* generate the BASE_JD_EVENT_DRV_TERMINATED message on the fly */
osk_mutex_unlock(&ctx->event_mutex);
uevent->event_code = BASE_JD_EVENT_DRV_TERMINATED;
uevent->data = NULL;
beenthere("event system closed, returning BASE_JD_EVENT_DRV_TERMINATED(0x%X)\n", BASE_JD_EVENT_DRV_TERMINATED);
return 0;
}
else
{
osk_mutex_unlock(&ctx->event_mutex);
return -1;
}
}
/* normal event processing */
event = OSK_DLIST_POP_FRONT(&ctx->event_list, kbase_event, entry);
osk_mutex_unlock(&ctx->event_mutex);
beenthere("event dequeuing %p\n", (void*)event);
uevent->event_code = event->event_code;
uevent->data = kbase_event_process(ctx, event);
return 0;
}
KBASE_EXPORT_TEST_API(kbase_event_dequeue)
void kbase_event_post(kbase_context *ctx,
kbase_event *event)
{
beenthere("event queuing %p\n", event);
OSK_ASSERT(ctx);
osk_mutex_lock(&ctx->event_mutex);
OSK_DLIST_PUSH_BACK(&ctx->event_list, event,
kbase_event, entry);
osk_mutex_unlock(&ctx->event_mutex);
kbase_event_wakeup(ctx);
}
KBASE_EXPORT_TEST_API(kbase_event_post)
void kbase_event_close(kbase_context * kctx)
{
osk_mutex_lock(&kctx->event_mutex);
kctx->event_closed = MALI_TRUE;
osk_mutex_unlock(&kctx->event_mutex);
kbase_event_wakeup(kctx);
}
mali_error kbase_event_init(kbase_context *kctx)
{
osk_error osk_err;
OSK_ASSERT(kctx);
OSK_DLIST_INIT(&kctx->event_list);
osk_err = osk_mutex_init(&kctx->event_mutex, OSK_LOCK_ORDER_QUEUE);
if (OSK_ERR_NONE != osk_err)
{
return MALI_ERROR_FUNCTION_FAILED;
}
kctx->event_closed = MALI_FALSE;
return MALI_ERROR_NONE;
}
KBASE_EXPORT_TEST_API(kbase_event_init)
void kbase_event_cleanup(kbase_context *kctx)
{
OSK_ASSERT(kctx);
osk_mutex_lock(&kctx->event_mutex);
while (!OSK_DLIST_IS_EMPTY(&kctx->event_list))
{
kbase_event *event;
event = OSK_DLIST_POP_FRONT(&kctx->event_list,
kbase_event, entry);
beenthere("event dropping %p\n", event);
osk_free(event);
}
osk_mutex_unlock(&kctx->event_mutex);
osk_mutex_term(&kctx->event_mutex);
}
KBASE_EXPORT_TEST_API(kbase_event_cleanup)
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