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Commit 40953653 authored by Tharun Kumar Merugu's avatar Tharun Kumar Merugu
Browse files

msm: ADSPRPC: Generate unique context id for each remote call 



Generate unique context id for each DSP domain remote calls.
It will be used for sending early signal based on context id.

Change-Id: If9a56f24a3ad9739f8e4051946cf8af0cb95d390
Acked-by: default avatarViswanatham Paduchuri <vpaduchu@qti.qualcomm.com>
Signed-off-by: default avatarTharun Kumar Merugu <mtharu@codeaurora.org>
parent e56fe938

drivers/char/adsprpc.c

+7 −1
Original line number Diff line number Diff line
@@ -314,6 +314,8 @@ struct fastrpc_apps { 
	spinlock_t ctxlock;

	struct smq_invoke_ctx *ctxtable[FASTRPC_CTX_MAX];

	bool legacy_remote_heap;

	/* Unique job id for each message */

	uint64_t jobid[NUM_CHANNELS];

};



struct fastrpc_mmap {
@@ -1170,6 +1172,7 @@ static int context_alloc(struct fastrpc_file *fl, uint32_t kernel, 
	struct smq_invoke_ctx *ctx = NULL;

	struct fastrpc_ctx_lst *clst = &fl->clst;

	struct fastrpc_ioctl_invoke *invoke = &invokefd->inv;

	unsigned int cid;



	bufs = REMOTE_SCALARS_LENGTH(invoke->sc);

	size = bufs * sizeof(*ctx->lpra) + bufs * sizeof(*ctx->maps) +
@@ -1229,10 +1232,12 @@ static int context_alloc(struct fastrpc_file *fl, uint32_t kernel, 
	spin_unlock(&fl->hlock);



	spin_lock(&me->ctxlock);

	cid = (fl->cid >= 0 && fl->cid < NUM_CHANNELS) ? fl->cid : 0;

	me->jobid[cid]++;

	for (ii = 0; ii < FASTRPC_CTX_MAX; ii++) {

		if (!me->ctxtable[ii]) {

			me->ctxtable[ii] = ctx;

			ctx->ctxid = (ptr_to_uint64(ctx) & ~0xFFF)|(ii << 4);

			ctx->ctxid = (me->jobid[cid] << 12) | (ii << 4);

			break;

		}

	}
@@ -4409,6 +4414,7 @@ static int __init fastrpc_device_init(void) 
		goto device_create_bail;



	for (i = 0; i < NUM_CHANNELS; i++) {

		me->jobid[i] = 1;

		me->channel[i].dev = secure_dev;

		if (i == CDSP_DOMAIN_ID)

			me->channel[i].dev = dev;