Commit 6f18c7e8 authored by Abel Vesa's avatar Abel Vesa Committed by Greg Kroah-Hartman
Browse files

misc: fastrpc: Add fastrpc_remote_heap_alloc 



Split fastrpc_buf_alloc in such a way it allows allocation of remote
heap too and add fastrpc_remote_heap_alloc to do so.

Co-developed-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: default avatarAbel Vesa <abel.vesa@linaro.org>
Signed-off-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20221125071405.148786-5-srinivas.kandagatla@linaro.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 1ce91d45

drivers/misc/fastrpc.c

+26 −3
Original line number Diff line number Diff line
@@ -369,7 +369,7 @@ static void fastrpc_buf_free(struct fastrpc_buf *buf) 
	kfree(buf);

}



static int fastrpc_buf_alloc(struct fastrpc_user *fl, struct device *dev,

static int __fastrpc_buf_alloc(struct fastrpc_user *fl, struct device *dev,

			     u64 size, struct fastrpc_buf **obuf)

{

	struct fastrpc_buf *buf;
@@ -397,14 +397,37 @@ static int fastrpc_buf_alloc(struct fastrpc_user *fl, struct device *dev, 
		return -ENOMEM;

	}



	*obuf = buf;



	return 0;

}



static int fastrpc_buf_alloc(struct fastrpc_user *fl, struct device *dev,

			     u64 size, struct fastrpc_buf **obuf)

{

	int ret;

	struct fastrpc_buf *buf;



	ret = __fastrpc_buf_alloc(fl, dev, size, obuf);

	if (ret)

		return ret;



	buf = *obuf;



	if (fl->sctx && fl->sctx->sid)

		buf->phys += ((u64)fl->sctx->sid << 32);



	*obuf = buf;



	return 0;

}



static int fastrpc_remote_heap_alloc(struct fastrpc_user *fl, struct device *dev,

				     u64 size, struct fastrpc_buf **obuf)

{

	struct device *rdev = &fl->cctx->rpdev->dev;



	return  __fastrpc_buf_alloc(fl, rdev, size, obuf);

}



static void fastrpc_channel_ctx_free(struct kref *ref)

{

	struct fastrpc_channel_ctx *cctx;