![Chris Metcalf](/assets/img/avatar_default.png)
This change is the core kernel support for TILEPro and TILE64 chips. No driver support (except the console driver) is included yet. This includes the relevant Linux headers in asm/; the low-level low-level "Tile architecture" headers in arch/, which are shared with the hypervisor, etc., and are build-system agnostic; and the relevant hypervisor headers in hv/. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Reviewed-by: Paul Mundt <lethal@linux-sh.org>
61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
/*
|
|
* Copyright 2010 Tilera Corporation. All Rights Reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation, version 2.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
|
|
* NON INFRINGEMENT. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* This header defines a wrapper interface for managing hypervisor
|
|
* device calls that will result in an interrupt at some later time.
|
|
* In particular, this provides wrappers for hv_preada() and
|
|
* hv_pwritea().
|
|
*/
|
|
|
|
#ifndef _ASM_TILE_HV_DRIVER_H
|
|
#define _ASM_TILE_HV_DRIVER_H
|
|
|
|
#include <hv/hypervisor.h>
|
|
|
|
struct hv_driver_cb;
|
|
|
|
/* A callback to be invoked when an operation completes. */
|
|
typedef void hv_driver_callback_t(struct hv_driver_cb *cb, __hv32 result);
|
|
|
|
/*
|
|
* A structure to hold information about an outstanding call.
|
|
* The driver must allocate a separate structure for each call.
|
|
*/
|
|
struct hv_driver_cb {
|
|
hv_driver_callback_t *callback; /* Function to call on interrupt. */
|
|
void *dev; /* Driver-specific state variable. */
|
|
};
|
|
|
|
/* Wrapper for invoking hv_dev_preada(). */
|
|
static inline int
|
|
tile_hv_dev_preada(int devhdl, __hv32 flags, __hv32 sgl_len,
|
|
HV_SGL sgl[/* sgl_len */], __hv64 offset,
|
|
struct hv_driver_cb *callback)
|
|
{
|
|
return hv_dev_preada(devhdl, flags, sgl_len, sgl,
|
|
offset, (HV_IntArg)callback);
|
|
}
|
|
|
|
/* Wrapper for invoking hv_dev_pwritea(). */
|
|
static inline int
|
|
tile_hv_dev_pwritea(int devhdl, __hv32 flags, __hv32 sgl_len,
|
|
HV_SGL sgl[/* sgl_len */], __hv64 offset,
|
|
struct hv_driver_cb *callback)
|
|
{
|
|
return hv_dev_pwritea(devhdl, flags, sgl_len, sgl,
|
|
offset, (HV_IntArg)callback);
|
|
}
|
|
|
|
|
|
#endif /* _ASM_TILE_HV_DRIVER_H */
|