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misc: fastrpc: add ioctl for attaching to sensors pd 

Initializing sensors requires attaching to pd 2. Add an ioctl for that.

This corresponds to FASTRPC_INIT_ATTACH_SENSORS in the downstream driver.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Link: https://lore.kernel.org/r/20200908131013.19630-4-jonathan@marek.ca
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jonathan Marek 2020-09-08 09:10:11 -04:00 committed by Greg Kroah-Hartman
parent 84195d206e
commit 6010d9befc
2 changed files with 7 additions and 3 deletions
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9
drivers/misc/fastrpc.c
View File

@ -1281,7 +1281,7 @@ static int fastrpc_dmabuf_alloc(struct fastrpc_user *fl, char __user *argp)
return 0;
}
static int fastrpc_init_attach(struct fastrpc_user *fl)
static int fastrpc_init_attach(struct fastrpc_user *fl, int pd)
{
struct fastrpc_invoke_args args[1];
int tgid = fl->tgid;
@ -1292,7 +1292,7 @@ static int fastrpc_init_attach(struct fastrpc_user *fl)
args[0].fd = -1;
args[0].reserved = 0;
sc = FASTRPC_SCALARS(FASTRPC_RMID_INIT_ATTACH, 1, 0);
fl->pd = AUDIO_PD;
fl->pd = pd;
return fastrpc_internal_invoke(fl, true, FASTRPC_INIT_HANDLE,
sc, &args[0]);
@ -1482,7 +1482,10 @@ static long fastrpc_device_ioctl(struct file *file, unsigned int cmd,
err = fastrpc_invoke(fl, argp);
break;
case FASTRPC_IOCTL_INIT_ATTACH:
err = fastrpc_init_attach(fl);
err = fastrpc_init_attach(fl, AUDIO_PD);
break;
case FASTRPC_IOCTL_INIT_ATTACH_SNS:
err = fastrpc_init_attach(fl, SENSORS_PD);
break;
case FASTRPC_IOCTL_INIT_CREATE:
err = fastrpc_init_create_process(fl, argp);

1
include/uapi/misc/fastrpc.h
View File

@ -12,6 +12,7 @@
#define FASTRPC_IOCTL_INIT_CREATE _IOWR('R', 5, struct fastrpc_init_create)
#define FASTRPC_IOCTL_MMAP _IOWR('R', 6, struct fastrpc_req_mmap)
#define FASTRPC_IOCTL_MUNMAP _IOWR('R', 7, struct fastrpc_req_munmap)
#define FASTRPC_IOCTL_INIT_ATTACH_SNS _IO('R', 8)
struct fastrpc_invoke_args {
__u64 ptr;