From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
To: robh+dt@kernel.org, gregkh@linuxfoundation.org
Cc: devicetree@vger.kernel.org, ekangupt@qti.qualcomm.com,
bkumar@qti.qualcomm.com, linux-kernel@vger.kernel.org,
srini@kernel.org, bjorn.andersson@linaro.org,
linux-arm-msm@vger.kernel.org,
Vamsi Krishna Gattupalli <quic_vgattupa@quicinc.com>,
Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Subject: [PATCH v4 09/12] misc: fastrpc: Add helper function to get list and page
Date: Mon, 14 Feb 2022 16:09:59 +0000 [thread overview]
Message-ID: <20220214161002.6831-10-srinivas.kandagatla@linaro.org> (raw)
In-Reply-To: <20220214161002.6831-1-srinivas.kandagatla@linaro.org>
From: Vamsi Krishna Gattupalli <quic_vgattupa@quicinc.com>
Add helper functions to get invoke buffer and page start pointers.
Signed-off-by: Vamsi Krishna Gattupalli <quic_vgattupa@quicinc.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
drivers/misc/fastrpc.c | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index eb1e6d111c77..1cec85e8eaa1 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -833,6 +833,16 @@ static int fastrpc_create_maps(struct fastrpc_invoke_ctx *ctx)
return 0;
}
+static struct fastrpc_invoke_buf *fastrpc_invoke_buf_start(union fastrpc_remote_arg *pra, int len)
+{
+ return (struct fastrpc_invoke_buf *)(&pra[len]);
+}
+
+static struct fastrpc_phy_page *fastrpc_phy_page_start(struct fastrpc_invoke_buf *buf, int len)
+{
+ return (struct fastrpc_phy_page *)(&buf[len]);
+}
+
static int fastrpc_get_args(u32 kernel, struct fastrpc_invoke_ctx *ctx)
{
struct device *dev = ctx->fl->sctx->dev;
@@ -860,9 +870,8 @@ static int fastrpc_get_args(u32 kernel, struct fastrpc_invoke_ctx *ctx)
return err;
rpra = ctx->buf->virt;
- list = ctx->buf->virt + ctx->nscalars * sizeof(*rpra);
- pages = ctx->buf->virt + ctx->nscalars * (sizeof(*list) +
- sizeof(*rpra));
+ list = fastrpc_invoke_buf_start(rpra, ctx->nscalars);
+ pages = fastrpc_phy_page_start(list, ctx->nscalars);
args = (uintptr_t)ctx->buf->virt + metalen;
rlen = pkt_size - metalen;
ctx->rpra = rpra;
--
2.21.0
next prev parent reply other threads:[~2022-02-14 16:10 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-14 16:09 [PATCH v4 00/12] misc: fastrpc: Add more DSP FastRPC features Srinivas Kandagatla
2022-02-14 16:09 ` [PATCH v4 01/12] misc: fastrpc: separate fastrpc device from channel context Srinivas Kandagatla
2022-02-14 16:09 ` [PATCH v4 02/12] misc: fastrpc: add support for FASTRPC_IOCTL_MEM_MAP/UNMAP Srinivas Kandagatla
2022-02-14 16:09 ` [PATCH v4 03/12] misc: fastrpc: Add support to get DSP capabilities Srinivas Kandagatla
2022-02-14 16:09 ` [PATCH v4 04/12] dt-bindings: misc: add property to support non-secure DSP Srinivas Kandagatla
2022-02-14 16:09 ` [PATCH v4 05/12] misc: fastrpc: add secure domain support Srinivas Kandagatla
2022-02-14 16:09 ` [PATCH v4 06/12] misc: fastrpc: check before loading process to the DSP Srinivas Kandagatla
2022-02-14 16:09 ` [PATCH v4 07/12] dt-bindings: misc: add fastrpc domain vmid property Srinivas Kandagatla
2022-02-14 16:09 ` [PATCH v4 08/12] misc: fastrpc: Add support to secure memory map Srinivas Kandagatla
2022-02-14 16:09 ` Srinivas Kandagatla [this message]
2022-02-14 16:10 ` [PATCH v4 10/12] misc: fastrpc: Add fdlist implementation Srinivas Kandagatla
2022-02-14 16:10 ` [PATCH v4 11/12] misc: fastrpc: Add dma handle implementation Srinivas Kandagatla
2022-02-14 16:10 ` [PATCH v4 12/12] arm64: dts: qcom: add non-secure domain property to fastrpc nodes Srinivas Kandagatla
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