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misc: fastrpc: Add support for create remote init process

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This patch adds support to create or attach remote shell process.
The shell process called fastrpc_shell_0 is usually loaded on the DSP
when a user process is spawned.

Most of the work is derived from various downstream Qualcomm kernels.
Credits to various Qualcomm authors who have contributed to this code.
Specially Tharun Kumar Merugu <mtharu@codeaurora.org>

Co-developed-by: Thierry Escande <thierry.escande@linaro.org>
Signed-off-by: Thierry Escande <thierry.escande@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Srinivas Kandagatla
2019-02-08 17:11:26 +00:00
committed by Greg Kroah-Hartman
parent c68cfb718c
commit d73f71c7c6
2 changed files with 166 additions and 0 deletions
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10
include/uapi/misc/fastrpc.h
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@@ -6,6 +6,8 @@
#include <linux/types.h>
#define FASTRPC_IOCTL_INVOKE _IOWR('R', 3, struct fastrpc_invoke)
#define FASTRPC_IOCTL_INIT_ATTACH _IO('R', 4)
#define FASTRPC_IOCTL_INIT_CREATE _IOWR('R', 5, struct fastrpc_init_create)
struct fastrpc_invoke_args {
__u64 ptr;
@@ -20,4 +22,12 @@ struct fastrpc_invoke {
__u64 args;
};
struct fastrpc_init_create {
__u32 filelen; /* elf file length */
__s32 filefd; /* fd for the file */
__u32 attrs;
__u32 siglen;
__u64 file; /* pointer to elf file */
};
#endif /* __QCOM_FASTRPC_H__ */