Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 029bfbee authored by Tharun Kumar Merugu's avatar Tharun Kumar Merugu
Browse files

msm: adsprpc: add fastrpc driver files 



Add fastrpc driver files, which provide a communication
mechanism that allows clients to make remote method
invocations across processor boundary to application, compute
and sensors DSP processors.

Change-Id: If08460c5d9875e2cbcaa099d11b2ebe86bc0655f
Acked-by: default avatarThyagarajan Venkatanarayanan <venkatan@qti.qualcomm.com>
Signed-off-by: default avatarTharun Kumar Merugu <mtharu@codeaurora.org>
parent 439ef570

drivers/char/Kconfig

+17 −0
Original line number Diff line number Diff line
@@ -545,6 +545,23 @@ source "drivers/s390/char/Kconfig" 


source "drivers/char/xillybus/Kconfig"



config MSM_ADSPRPC

	tristate "QTI FastRPC driver"

	depends on QCOM_GLINK

	help

		Provides a communication mechanism that allows clients to

		make remote method invocations across processor boundary to

		applications/compute DSP processor.

		Say M if you want to enable this module.



config ADSPRPC_DEBUG

	bool "Debug logs in FastRPC driver"

	help

		Enable debug logs in the fastrpc driver. Flag will be

		disabled by default to maximize RPC performance as debug

		logging will impact RPC overhead.

		Say Y here if you want to enable the logs.



config ADI

	tristate "SPARC Privileged ADI driver"

	depends on SPARC64

drivers/char/Makefile

+4 −0
Original line number Diff line number Diff line
@@ -53,4 +53,8 @@ js-rtc-y = rtc.o 


obj-$(CONFIG_XILLYBUS)		+= xillybus/

obj-$(CONFIG_POWERNV_OP_PANEL)	+= powernv-op-panel.o

obj-$(CONFIG_MSM_ADSPRPC)	+= adsprpc.o

ifdef CONFIG_COMPAT

  obj-$(CONFIG_MSM_ADSPRPC)	+= adsprpc_compat.o

endif

obj-$(CONFIG_ADI)		+= adi.o

drivers/char/adsprpc.c

0 → 100644
+4621 −0

File added.

Preview size limit exceeded, changes collapsed.

drivers/char/adsprpc_compat.c

0 → 100644
+657 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2014-2019, The Linux Foundation. All rights reserved.

 */

#include <linux/compat.h>

#include <linux/fs.h>

#include <linux/uaccess.h>

#include <linux/msm_ion.h>



#include "adsprpc_compat.h"

#include "adsprpc_shared.h"



#define COMPAT_FASTRPC_IOCTL_INVOKE \

		_IOWR('R', 1, struct compat_fastrpc_ioctl_invoke)

#define COMPAT_FASTRPC_IOCTL_MMAP \

		_IOWR('R', 2, struct compat_fastrpc_ioctl_mmap)

#define COMPAT_FASTRPC_IOCTL_MUNMAP \

		_IOWR('R', 3, struct compat_fastrpc_ioctl_munmap)

#define COMPAT_FASTRPC_IOCTL_INVOKE_FD \

		_IOWR('R', 4, struct compat_fastrpc_ioctl_invoke_fd)

#define COMPAT_FASTRPC_IOCTL_INIT \

		_IOWR('R', 6, struct compat_fastrpc_ioctl_init)

#define COMPAT_FASTRPC_IOCTL_INVOKE_ATTRS \

		_IOWR('R', 7, struct compat_fastrpc_ioctl_invoke_attrs)

#define COMPAT_FASTRPC_IOCTL_GETPERF \

		_IOWR('R', 9, struct compat_fastrpc_ioctl_perf)

#define COMPAT_FASTRPC_IOCTL_INIT_ATTRS \

		_IOWR('R', 10, struct compat_fastrpc_ioctl_init_attrs)

#define COMPAT_FASTRPC_IOCTL_INVOKE_CRC \

		_IOWR('R', 11, struct compat_fastrpc_ioctl_invoke_crc)

#define COMPAT_FASTRPC_IOCTL_CONTROL \

		_IOWR('R', 12, struct compat_fastrpc_ioctl_control)

#define COMPAT_FASTRPC_IOCTL_MMAP_64 \

		_IOWR('R', 14, struct compat_fastrpc_ioctl_mmap_64)

#define COMPAT_FASTRPC_IOCTL_MUNMAP_64 \

		_IOWR('R', 15, struct compat_fastrpc_ioctl_munmap_64)

#define COMPAT_FASTRPC_IOCTL_GET_DSP_INFO \

		_IOWR('R', 16, struct compat_fastrpc_ioctl_dsp_capabilities)



struct compat_remote_buf {

	compat_uptr_t pv;	/* buffer pointer */

	compat_size_t len;	/* length of buffer */

};



union compat_remote_arg {

	struct compat_remote_buf buf;

	compat_uint_t h;

};



struct compat_fastrpc_ioctl_invoke {

	compat_uint_t handle;	/* remote handle */

	compat_uint_t sc;	/* scalars describing the data */

	compat_uptr_t pra;	/* remote arguments list */

};



struct compat_fastrpc_ioctl_invoke_fd {

	struct compat_fastrpc_ioctl_invoke inv;

	compat_uptr_t fds;	/* fd list */

};



struct compat_fastrpc_ioctl_invoke_attrs {

	struct compat_fastrpc_ioctl_invoke inv;

	compat_uptr_t fds;	/* fd list */

	compat_uptr_t attrs;	/* attribute list */

};



struct compat_fastrpc_ioctl_invoke_crc {

	struct compat_fastrpc_ioctl_invoke inv;

	compat_uptr_t fds;	/* fd list */

	compat_uptr_t attrs;	/* attribute list */

	compat_uptr_t crc;	/* crc list */

};



struct compat_fastrpc_ioctl_mmap {

	compat_int_t fd;	/* ion fd */

	compat_uint_t flags;	/* flags for dsp to map with */

	compat_uptr_t vaddrin;	/* optional virtual address */

	compat_size_t size;	/* size */

	compat_uptr_t vaddrout;	/* dsps virtual address */

};



struct compat_fastrpc_ioctl_mmap_64 {

	compat_int_t fd;	/* ion fd */

	compat_uint_t flags;	/* flags for dsp to map with */

	compat_u64 vaddrin;	/* optional virtual address */

	compat_size_t size;	/* size */

	compat_u64 vaddrout;	/* dsps virtual address */

};



struct compat_fastrpc_ioctl_munmap {

	compat_uptr_t vaddrout;	/* address to unmap */

	compat_size_t size;	/* size */

};



struct compat_fastrpc_ioctl_munmap_64 {

	compat_u64 vaddrout;	/* address to unmap */

	compat_size_t size;	/* size */

};



struct compat_fastrpc_ioctl_init {

	compat_uint_t flags;	/* one of FASTRPC_INIT_* macros */

	compat_uptr_t file;	/* pointer to elf file */

	compat_int_t filelen;	/* elf file length */

	compat_int_t filefd;	/* ION fd for the file */

	compat_uptr_t mem;	/* mem for the PD */

	compat_int_t memlen;	/* mem length */

	compat_int_t memfd;	/* ION fd for the mem */

};



struct compat_fastrpc_ioctl_init_attrs {

	struct compat_fastrpc_ioctl_init init;

	compat_int_t attrs;	/* attributes to init process */

	compat_int_t siglen;	/* test signature file length */

};



struct compat_fastrpc_ioctl_perf {	/* kernel performance data */

	compat_uptr_t  data;

	compat_int_t numkeys;

	compat_uptr_t keys;

};



#define FASTRPC_CONTROL_LATENCY		(1)

struct compat_fastrpc_ctrl_latency {

	compat_uint_t enable;	/* latency control enable */

	compat_uint_t level;	/* level of control */

};



#define FASTRPC_CONTROL_KALLOC		(3)

struct compat_fastrpc_ctrl_kalloc {

	compat_uint_t kalloc_support; /* Remote memory allocation from kernel */

};



struct compat_fastrpc_ioctl_control {

	compat_uint_t req;

	union {

		struct compat_fastrpc_ctrl_latency lp;

		struct compat_fastrpc_ctrl_kalloc kalloc;

	};

};



struct compat_fastrpc_ioctl_dsp_capabilities {

	compat_uint_t domain;	/* DSP domain to query capabilities */

	compat_uint_t dsp_attributes[FASTRPC_MAX_DSP_ATTRIBUTES];

};



static int compat_get_fastrpc_ioctl_invoke(

			struct compat_fastrpc_ioctl_invoke_crc __user *inv32,

			struct fastrpc_ioctl_invoke_crc __user **inva,

			unsigned int cmd)

{

	compat_uint_t u, sc;

	compat_size_t s;

	compat_uptr_t p;

	struct fastrpc_ioctl_invoke_crc *inv;

	union compat_remote_arg *pra32;

	union remote_arg *pra;

	int err, len, j;



	err = get_user(sc, &inv32->inv.sc);

	if (err)

		return err;



	len = REMOTE_SCALARS_LENGTH(sc);

	VERIFY(err, NULL != (inv = compat_alloc_user_space(

				sizeof(*inv) + len * sizeof(*pra))));

	if (err)

		return -EFAULT;



	pra = (union remote_arg *)(inv + 1);

	err = put_user(pra, &inv->inv.pra);

	err |= put_user(sc, &inv->inv.sc);

	err |= get_user(u, &inv32->inv.handle);

	err |= put_user(u, &inv->inv.handle);

	err |= get_user(p, &inv32->inv.pra);

	if (err)

		return err;



	pra32 = compat_ptr(p);

	pra = (union remote_arg *)(inv + 1);

	for (j = 0; j < len; j++) {

		err |= get_user(p, &pra32[j].buf.pv);

		err |= put_user(p, (uintptr_t *)&pra[j].buf.pv);

		err |= get_user(s, &pra32[j].buf.len);

		err |= put_user(s, &pra[j].buf.len);

	}



	err |= put_user(NULL, &inv->fds);

	if (cmd != COMPAT_FASTRPC_IOCTL_INVOKE) {

		err |= get_user(p, &inv32->fds);

		err |= put_user(p, (compat_uptr_t *)&inv->fds);

	}

	err |= put_user(NULL, &inv->attrs);

	if ((cmd == COMPAT_FASTRPC_IOCTL_INVOKE_ATTRS) ||

		(cmd == COMPAT_FASTRPC_IOCTL_INVOKE_CRC)) {

		err |= get_user(p, &inv32->attrs);

		err |= put_user(p, (compat_uptr_t *)&inv->attrs);

	}

	err |= put_user(NULL, (compat_uptr_t __user **)&inv->crc);

	if (cmd == COMPAT_FASTRPC_IOCTL_INVOKE_CRC) {

		err |= get_user(p, &inv32->crc);

		err |= put_user(p, (compat_uptr_t __user *)&inv->crc);

	}



	*inva = inv;

	return err;

}



static int compat_get_fastrpc_ioctl_mmap(

			struct compat_fastrpc_ioctl_mmap __user *map32,

			struct fastrpc_ioctl_mmap __user *map)

{

	compat_uint_t u;

	compat_int_t i;

	compat_size_t s;

	compat_uptr_t p;

	int err;



	err = get_user(i, &map32->fd);

	err |= put_user(i, &map->fd);

	err |= get_user(u, &map32->flags);

	err |= put_user(u, &map->flags);

	err |= get_user(p, &map32->vaddrin);

	err |= put_user(p, (uintptr_t *)&map->vaddrin);

	err |= get_user(s, &map32->size);

	err |= put_user(s, &map->size);



	return err;

}



static int compat_get_fastrpc_ioctl_mmap_64(

			struct compat_fastrpc_ioctl_mmap_64 __user *map32,

			struct fastrpc_ioctl_mmap __user *map)

{

	compat_uint_t u;

	compat_int_t i;

	compat_size_t s;

	compat_u64 p;

	int err;



	err = get_user(i, &map32->fd);

	err |= put_user(i, &map->fd);

	err |= get_user(u, &map32->flags);

	err |= put_user(u, &map->flags);

	err |= get_user(p, &map32->vaddrin);

	err |= put_user(p, &map->vaddrin);

	err |= get_user(s, &map32->size);

	err |= put_user(s, &map->size);



	return err;

}



static int compat_put_fastrpc_ioctl_mmap(

			struct compat_fastrpc_ioctl_mmap __user *map32,

			struct fastrpc_ioctl_mmap __user *map)

{

	compat_uptr_t p;

	int err;



	err = get_user(p, &map->vaddrout);

	err |= put_user(p, &map32->vaddrout);



	return err;

}



static int compat_put_fastrpc_ioctl_mmap_64(

			struct compat_fastrpc_ioctl_mmap_64 __user *map32,

			struct fastrpc_ioctl_mmap __user *map)

{

	compat_u64 p;

	int err;



	err = get_user(p, &map->vaddrout);

	err |= put_user(p, &map32->vaddrout);



	return err;

}



static int compat_get_fastrpc_ioctl_munmap(

			struct compat_fastrpc_ioctl_munmap __user *unmap32,

			struct fastrpc_ioctl_munmap __user *unmap)

{

	compat_uptr_t p;

	compat_size_t s;

	int err;



	err = get_user(p, &unmap32->vaddrout);

	err |= put_user(p, &unmap->vaddrout);

	err |= get_user(s, &unmap32->size);

	err |= put_user(s, &unmap->size);



	return err;

}



static int compat_get_fastrpc_ioctl_munmap_64(

			struct compat_fastrpc_ioctl_munmap_64 __user *unmap32,

			struct fastrpc_ioctl_munmap __user *unmap)

{

	compat_u64 p;

	compat_size_t s;

	int err;



	err = get_user(p, &unmap32->vaddrout);

	err |= put_user(p, &unmap->vaddrout);

	err |= get_user(s, &unmap32->size);

	err |= put_user(s, &unmap->size);



	return err;

}



static int compat_get_fastrpc_ioctl_perf(

			struct compat_fastrpc_ioctl_perf __user *perf32,

			struct fastrpc_ioctl_perf __user *perf)

{

	compat_uptr_t p;

	int err;



	err = get_user(p, &perf32->data);

	err |= put_user(p, &perf->data);

	err |= get_user(p, &perf32->keys);

	err |= put_user(p, &perf->keys);



	return err;

}



static int compat_get_fastrpc_ioctl_control(

			struct compat_fastrpc_ioctl_control __user *ctrl32,

			struct fastrpc_ioctl_control __user *ctrl)

{

	compat_uptr_t p;

	int err;



	err = get_user(p, &ctrl32->req);

	err |= put_user(p, &ctrl->req);

	if (p == FASTRPC_CONTROL_LATENCY) {

		err |= get_user(p, &ctrl32->lp.enable);

		err |= put_user(p, &ctrl->lp.enable);

		err |= get_user(p, &ctrl32->lp.level);

		err |= put_user(p, &ctrl->lp.level);

	}



	return err;

}



static int compat_get_fastrpc_ioctl_init(

			struct compat_fastrpc_ioctl_init_attrs __user *init32,

			struct fastrpc_ioctl_init_attrs __user *init,

			unsigned int cmd)

{

	compat_uint_t u;

	compat_uptr_t p;

	compat_int_t i;

	int err;



	err = get_user(u, &init32->init.flags);

	err |= put_user(u, &init->init.flags);

	err |= get_user(p, &init32->init.file);

	err |= put_user(p, &init->init.file);

	err |= get_user(i, &init32->init.filelen);

	err |= put_user(i, &init->init.filelen);

	err |= get_user(i, &init32->init.filefd);

	err |= put_user(i, &init->init.filefd);

	err |= get_user(p, &init32->init.mem);

	err |= put_user(p, &init->init.mem);

	err |= get_user(i, &init32->init.memlen);

	err |= put_user(i, &init->init.memlen);

	err |= get_user(i, &init32->init.memfd);

	err |= put_user(i, &init->init.memfd);



	err |= put_user(0, &init->attrs);

	if (cmd == COMPAT_FASTRPC_IOCTL_INIT_ATTRS) {

		err |= get_user(i, &init32->attrs);

		err |= put_user(i, (compat_uptr_t *)&init->attrs);

	}



	err |= put_user(0, &init->siglen);

	if (cmd == COMPAT_FASTRPC_IOCTL_INIT_ATTRS) {

		err |= get_user(i, &init32->siglen);

		err |= put_user(i, (compat_uptr_t *)&init->siglen);

	}



	return err;

}



static int compat_put_fastrpc_ioctl_get_dsp_info(

		struct compat_fastrpc_ioctl_dsp_capabilities __user *info32,

		struct fastrpc_ioctl_dsp_capabilities __user *info)

{

	compat_uint_t u, *dsp_attr, *dsp_attr_32;

	int err, ii;



	dsp_attr = info->dsp_attributes;

	dsp_attr_32 = info32->dsp_attributes;

	for (ii = 0, err = 0; ii < FASTRPC_MAX_DSP_ATTRIBUTES; ii++) {

		err |= get_user(u, dsp_attr++);

		err |= put_user(u, dsp_attr_32++);

	}



	return err;

}



static int fastrpc_setmode(struct file *filp, unsigned int cmd,

		unsigned long arg)

{

	return filp->f_op->unlocked_ioctl(filp, cmd,

					(unsigned long)compat_ptr(arg));

}



static int compat_fastrpc_control(struct file *filp,

		unsigned long arg)

{

	int err = 0;

	struct compat_fastrpc_ioctl_control __user *ctrl32;

	struct fastrpc_ioctl_control __user *ctrl;

	compat_uptr_t p;



	ctrl32 = compat_ptr(arg);

	VERIFY(err, NULL != (ctrl = compat_alloc_user_space(

						sizeof(*ctrl))));

	if (err)

		return -EFAULT;

	VERIFY(err, 0 == compat_get_fastrpc_ioctl_control(ctrl32,

						ctrl));

	if (err)

		return err;

	err = filp->f_op->unlocked_ioctl(filp, FASTRPC_IOCTL_CONTROL,

						(unsigned long)ctrl);

	if (err)

		return err;

	err = get_user(p, &ctrl32->req);

	if (err)

		return err;

	if (p == FASTRPC_CONTROL_KALLOC) {

		err = get_user(p, &ctrl->kalloc.kalloc_support);

		err |= put_user(p, &ctrl32->kalloc.kalloc_support);

	}

	return err;

}



static int compat_fastrpc_getperf(struct file *filp,

		unsigned long arg)

{

	int err = 0;

	struct compat_fastrpc_ioctl_perf __user *perf32;

	struct fastrpc_ioctl_perf *perf;

	compat_uint_t u;

	long ret;



	perf32 = compat_ptr(arg);

	VERIFY(err, NULL != (perf = compat_alloc_user_space(

						sizeof(*perf))));

	if (err)

		return -EFAULT;

	VERIFY(err, 0 == compat_get_fastrpc_ioctl_perf(perf32,

						perf));

	if (err)

		return err;

	ret = filp->f_op->unlocked_ioctl(filp, FASTRPC_IOCTL_GETPERF,

						(unsigned long)perf);

	if (ret)

		return ret;

	err = get_user(u, &perf->numkeys);

	err |= put_user(u, &perf32->numkeys);

	return err;

}



static int compat_fastrpc_get_dsp_info(struct file *filp,

		unsigned long arg)

{

	struct compat_fastrpc_ioctl_dsp_capabilities __user *info32;

	struct fastrpc_ioctl_dsp_capabilities *info;

	compat_uint_t u;

	long ret;

	int err = 0;



	info32 = compat_ptr(arg);

	VERIFY(err, NULL != (info = compat_alloc_user_space(

						sizeof(*info))));

	if (err)

		return -EFAULT;



	err = get_user(u, &info32->domain);

	err |= put_user(u, &info->domain);

	if (err)

		return err;



	ret = filp->f_op->unlocked_ioctl(filp,

			FASTRPC_IOCTL_GET_DSP_INFO,

			(unsigned long)info);

	if (ret)

		return ret;



	err = compat_put_fastrpc_ioctl_get_dsp_info(info32, info);

	return err;

}



long compat_fastrpc_device_ioctl(struct file *filp, unsigned int cmd,

				unsigned long arg)

{

	int err = 0;



	if (!filp->f_op || !filp->f_op->unlocked_ioctl)

		return -ENOTTY;



	switch (cmd) {

	case COMPAT_FASTRPC_IOCTL_INVOKE:

	case COMPAT_FASTRPC_IOCTL_INVOKE_FD:

	case COMPAT_FASTRPC_IOCTL_INVOKE_ATTRS:

	case COMPAT_FASTRPC_IOCTL_INVOKE_CRC:

	{

		struct compat_fastrpc_ioctl_invoke_crc __user *inv32;

		struct fastrpc_ioctl_invoke_crc __user *inv;



		inv32 = compat_ptr(arg);

		VERIFY(err, 0 == compat_get_fastrpc_ioctl_invoke(inv32,

							&inv, cmd));

		if (err)

			return err;

		return filp->f_op->unlocked_ioctl(filp,

				FASTRPC_IOCTL_INVOKE_CRC, (unsigned long)inv);

	}

	case COMPAT_FASTRPC_IOCTL_MMAP:

	{

		struct compat_fastrpc_ioctl_mmap __user *map32;

		struct fastrpc_ioctl_mmap __user *map;

		long ret;



		map32 = compat_ptr(arg);

		VERIFY(err, NULL != (map = compat_alloc_user_space(

							sizeof(*map))));

		if (err)

			return -EFAULT;

		VERIFY(err, 0 == compat_get_fastrpc_ioctl_mmap(map32, map));

		if (err)

			return err;

		ret = filp->f_op->unlocked_ioctl(filp, FASTRPC_IOCTL_MMAP,

							(unsigned long)map);

		if (ret)

			return ret;

		VERIFY(err, 0 == compat_put_fastrpc_ioctl_mmap(map32, map));

		return err;

	}

	case COMPAT_FASTRPC_IOCTL_MMAP_64:

	{

		struct compat_fastrpc_ioctl_mmap_64  __user *map32;

		struct fastrpc_ioctl_mmap __user *map;

		long ret;



		map32 = compat_ptr(arg);

		VERIFY(err, NULL != (map = compat_alloc_user_space(

							sizeof(*map))));

		if (err)

			return -EFAULT;

		VERIFY(err, 0 == compat_get_fastrpc_ioctl_mmap_64(map32, map));

		if (err)

			return err;

		ret = filp->f_op->unlocked_ioctl(filp, FASTRPC_IOCTL_MMAP_64,

							(unsigned long)map);

		if (ret)

			return ret;

		VERIFY(err, 0 == compat_put_fastrpc_ioctl_mmap_64(map32, map));

		return err;

	}

	case COMPAT_FASTRPC_IOCTL_MUNMAP:

	{

		struct compat_fastrpc_ioctl_munmap __user *unmap32;

		struct fastrpc_ioctl_munmap __user *unmap;



		unmap32 = compat_ptr(arg);

		VERIFY(err, NULL != (unmap = compat_alloc_user_space(

							sizeof(*unmap))));

		if (err)

			return -EFAULT;

		VERIFY(err, 0 == compat_get_fastrpc_ioctl_munmap(unmap32,

							unmap));

		if (err)

			return err;

		return filp->f_op->unlocked_ioctl(filp, FASTRPC_IOCTL_MUNMAP,

							(unsigned long)unmap);

	}

	case COMPAT_FASTRPC_IOCTL_MUNMAP_64:

	{

		struct compat_fastrpc_ioctl_munmap_64 __user *unmap32;

		struct fastrpc_ioctl_munmap __user *unmap;



		unmap32 = compat_ptr(arg);

		VERIFY(err, NULL != (unmap = compat_alloc_user_space(

							sizeof(*unmap))));

		if (err)

			return -EFAULT;

		VERIFY(err, 0 == compat_get_fastrpc_ioctl_munmap_64(unmap32,

							unmap));

		if (err)

			return err;

		return filp->f_op->unlocked_ioctl(filp, FASTRPC_IOCTL_MUNMAP_64,

							(unsigned long)unmap);

	}

	case COMPAT_FASTRPC_IOCTL_INIT:

		/* fall through */

	case COMPAT_FASTRPC_IOCTL_INIT_ATTRS:

	{

		struct compat_fastrpc_ioctl_init_attrs __user *init32;

		struct fastrpc_ioctl_init_attrs __user *init;



		init32 = compat_ptr(arg);

		VERIFY(err, NULL != (init = compat_alloc_user_space(

							sizeof(*init))));

		if (err)

			return -EFAULT;

		VERIFY(err, 0 == compat_get_fastrpc_ioctl_init(init32,

							init, cmd));

		if (err)

			return err;

		return filp->f_op->unlocked_ioctl(filp,

			 FASTRPC_IOCTL_INIT_ATTRS, (unsigned long)init);

	}

	case FASTRPC_IOCTL_GETINFO:

	{

		compat_uptr_t __user *info32;

		uint32_t __user *info;

		compat_uint_t u;

		long ret;



		info32 = compat_ptr(arg);

		VERIFY(err, NULL != (info = compat_alloc_user_space(

							sizeof(*info))));

		if (err)

			return -EFAULT;

		err = get_user(u, info32);

		err |= put_user(u, info);

		if (err)

			return err;

		ret = filp->f_op->unlocked_ioctl(filp, FASTRPC_IOCTL_GETINFO,

							(unsigned long)info);

		if (ret)

			return ret;

		err = get_user(u, info);

		err |= put_user(u, info32);

		return err;

	}

	case FASTRPC_IOCTL_SETMODE:

		return fastrpc_setmode(filp, cmd, arg);

	case COMPAT_FASTRPC_IOCTL_CONTROL:

	{

		return compat_fastrpc_control(filp, arg);

	}

	case COMPAT_FASTRPC_IOCTL_GETPERF:

	{

		return compat_fastrpc_getperf(filp, arg);

	}

	case COMPAT_FASTRPC_IOCTL_GET_DSP_INFO:

	{

		return compat_fastrpc_get_dsp_info(filp, arg);

	}

	default:

		return -ENOIOCTLCMD;

	}

}

drivers/char/adsprpc_compat.h

0 → 100644
+17 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-only */

/*

 * Copyright (c) 2014, 2018-2019 The Linux Foundation. All rights reserved.

 */

#ifndef ADSPRPC_COMPAT_H

#define ADSPRPC_COMPAT_H



#ifdef CONFIG_COMPAT



long compat_fastrpc_device_ioctl(struct file *filp, unsigned int cmd,

				unsigned long arg);

#else



#define compat_fastrpc_device_ioctl	NULL



#endif /* CONFIG_COMPAT */

#endif /* ADSPRPC_COMPAT_H */