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| author | Abel Vesa <abel.vesa@linaro.org> | 2022-11-25 07:13:59 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-11-25 18:45:33 +0100 |
| commit | 6f18c7e845346f365e08613fdc47a60fc201aedb (patch) | |
| tree | 508aa4bcc999c014f01f1ca1ba7ee5fb51b2cbf5 /drivers/misc | |
| parent | 1ce91d45ba77a4f6bf9209d142d5c89c42cf877a (diff) | |
| download | linux-starfive-6f18c7e845346f365e08613fdc47a60fc201aedb.tar.gz linux-starfive-6f18c7e845346f365e08613fdc47a60fc201aedb.tar.bz2 linux-starfive-6f18c7e845346f365e08613fdc47a60fc201aedb.zip | |
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: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20221125071405.148786-5-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/fastrpc.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c index 3d5809622a6b..8b43fe5207fb 100644 --- a/drivers/misc/fastrpc.c +++ b/drivers/misc/fastrpc.c @@ -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; |