C++ (Cpp) adreno_ringbuffer_waitspace Beispiele

Beispiel #1

static unsigned int *adreno_ringbuffer_allocspace(struct adreno_ringbuffer *rb,
					     unsigned int numcmds)
{
	unsigned int	*ptr = NULL;

	BUG_ON(numcmds >= rb->sizedwords);

	GSL_RB_GET_READPTR(rb, &rb->rptr);
	/* check for available space */
	if (rb->wptr >= rb->rptr) {
		/* wptr ahead or equal to rptr */
		/* reserve dwords for nop packet */
		if ((rb->wptr + numcmds) > (rb->sizedwords -
				GSL_RB_NOP_SIZEDWORDS))
			adreno_ringbuffer_waitspace(rb, numcmds, 1);
	} else {
		/* wptr behind rptr */
		if ((rb->wptr + numcmds) >= rb->rptr)
			adreno_ringbuffer_waitspace(rb, numcmds, 0);
		/* check for remaining space */
		/* reserve dwords for nop packet */
		if ((rb->wptr + numcmds) > (rb->sizedwords -
				GSL_RB_NOP_SIZEDWORDS))
			adreno_ringbuffer_waitspace(rb, numcmds, 1);
	}

	ptr = (unsigned int *)rb->buffer_desc.hostptr + rb->wptr;
	rb->wptr += numcmds;

	return ptr;
}

Beispiel #2

Datei: adreno_ringbuffer.c Projekt: boa19861105/Killx-Kernel

unsigned int *adreno_ringbuffer_allocspace(struct adreno_ringbuffer *rb,
					     unsigned int numcmds)
{
	unsigned int	*ptr = NULL;

	BUG_ON(numcmds >= rb->sizedwords);

	GSL_RB_GET_READPTR(rb, &rb->rptr);
	
	if (rb->wptr >= rb->rptr) {
		
		
		if ((rb->wptr + numcmds) > (rb->sizedwords -
				GSL_RB_NOP_SIZEDWORDS))
			adreno_ringbuffer_waitspace(rb, numcmds, 1);
	} else {
		
		if ((rb->wptr + numcmds) >= rb->rptr)
			adreno_ringbuffer_waitspace(rb, numcmds, 0);
		
		
		if ((rb->wptr + numcmds) > (rb->sizedwords -
				GSL_RB_NOP_SIZEDWORDS))
			adreno_ringbuffer_waitspace(rb, numcmds, 1);
	}

	ptr = (unsigned int *)rb->buffer_desc.hostptr + rb->wptr;
	rb->wptr += numcmds;

	return ptr;
}

Beispiel #3

Datei: adreno_ringbuffer.c Projekt: BeastOn/yu_msm8916

unsigned int *adreno_ringbuffer_allocspace(struct adreno_ringbuffer *rb,
					unsigned int numcmds)
{
	unsigned int *ptr = NULL;
	int ret = 0;
	unsigned int rptr;
	BUG_ON(numcmds >= KGSL_RB_DWORDS);

	rptr = adreno_get_rptr(rb);
	/* check for available space */
	if (rb->wptr >= rptr) {
		/* wptr ahead or equal to rptr */
		/* reserve dwords for nop packet */
		if ((rb->wptr + numcmds) > (KGSL_RB_DWORDS -
				GSL_RB_NOP_SIZEDWORDS))
			ret = adreno_ringbuffer_waitspace(rb, numcmds, 1);
	} else {
		/* wptr behind rptr */
		if ((rb->wptr + numcmds) >= rptr)
			ret = adreno_ringbuffer_waitspace(rb, numcmds, 0);
		/* check for remaining space */
		/* reserve dwords for nop packet */
		if (!ret && (rb->wptr + numcmds) > (KGSL_RB_DWORDS -
				GSL_RB_NOP_SIZEDWORDS))
			ret = adreno_ringbuffer_waitspace(rb, numcmds, 1);
	}

	if (!ret) {
		rb->last_wptr = rb->wptr;

		ptr = (unsigned int *)rb->buffer_desc.hostptr + rb->wptr;
		rb->wptr += numcmds;
	} else
		ptr = ERR_PTR(ret);

	return ptr;
}

Beispiel #4

unsigned int *adreno_ringbuffer_allocspace(struct adreno_ringbuffer *rb,
					unsigned int numcmds)
{
	unsigned int *ptr = NULL;
	int ret = 0;
	unsigned int rptr;
	BUG_ON(numcmds >= KGSL_RB_DWORDS);

	rptr = adreno_get_rptr(rb);
	
	if (rb->wptr >= rptr) {
		
		
		if ((rb->wptr + numcmds) > (KGSL_RB_DWORDS -
				GSL_RB_NOP_SIZEDWORDS))
			ret = adreno_ringbuffer_waitspace(rb, numcmds, 1);
	} else {
		
		if ((rb->wptr + numcmds) >= rptr)
			ret = adreno_ringbuffer_waitspace(rb, numcmds, 0);
		
		
		if (!ret && (rb->wptr + numcmds) > (KGSL_RB_DWORDS -
				GSL_RB_NOP_SIZEDWORDS))
			ret = adreno_ringbuffer_waitspace(rb, numcmds, 1);
	}

	if (!ret) {
		rb->last_wptr = rb->wptr;

		ptr = (unsigned int *)rb->buffer_desc.hostptr + rb->wptr;
		rb->wptr += numcmds;
	} else
		ptr = ERR_PTR(ret);

	return ptr;
}