arch/tile/include/asm/setup.h

   1 /*
   2  * Copyright 2010 Tilera Corporation. All Rights Reserved.
   3  *
   4  *   This program is free software; you can redistribute it and/or
   5  *   modify it under the terms of the GNU General Public License
   6  *   as published by the Free Software Foundation, version 2.
   7  *
   8  *   This program is distributed in the hope that it will be useful, but
   9  *   WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
  11  *   NON INFRINGEMENT.  See the GNU General Public License for
  12  *   more details.
  13  */
  14 #ifndef _ASM_TILE_SETUP_H
  15 #define _ASM_TILE_SETUP_H
  16
  17
  18 #include <linux/pfn.h>
  19 #include <linux/init.h>
  20 #include <uapi/asm/setup.h>
  21
  22 /*
  23  * Reserved space for vmalloc and iomap - defined in asm/page.h
  24  */
  25 #define MAXMEM_PFN      PFN_DOWN(MAXMEM)
  26
  27 int tile_console_write(const char *buf, int count);
  28 void early_panic(const char *fmt, ...);
  29
  30 /* Init-time routine to do tile-specific per-cpu setup. */
  31 void setup_cpu(int boot);
  32
  33 /* User-level DMA management functions */
  34 void grant_dma_mpls(void);
  35 void restrict_dma_mpls(void);
  36
  37 #ifdef CONFIG_HARDWALL
  38 /* User-level network management functions */
  39 void reset_network_state(void);
  40 struct task_struct;
  41 void hardwall_switch_tasks(struct task_struct *prev, struct task_struct *next);
  42 void hardwall_deactivate_all(struct task_struct *task);
  43 int hardwall_ipi_valid(int cpu);
  44
  45 /* Hook hardwall code into changes in affinity. */
  46 #define arch_set_cpus_allowed(p, new_mask) do { \
  47         if (!cpumask_equal(&p->cpus_allowed, new_mask)) \
  48                 hardwall_deactivate_all(p); \
  49 } while (0)
  50 #endif
  51
  52 #endif /* _ASM_TILE_SETUP_H */