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
  15 #ifndef _ASM_TILE_SETUP_H
  16 #define _ASM_TILE_SETUP_H
  17
  18 #define COMMAND_LINE_SIZE       2048
  19
  20 #ifdef __KERNEL__
  21
  22 #include <linux/pfn.h>
  23 #include <linux/init.h>
  24
  25 /*
  26  * Reserved space for vmalloc and iomap - defined in asm/page.h
  27  */
  28 #define MAXMEM_PFN      PFN_DOWN(MAXMEM)
  29
  30 void early_panic(const char *fmt, ...);
  31 void warn_early_printk(void);
  32 void __init disable_early_printk(void);
  33
  34 /* Init-time routine to do tile-specific per-cpu setup. */
  35 void setup_cpu(int boot);
  36
  37 /* User-level DMA management functions */
  38 void grant_dma_mpls(void);
  39 void restrict_dma_mpls(void);
  40
  41 #ifdef CONFIG_HARDWALL
  42 /* User-level network management functions */
  43 void reset_network_state(void);
  44 struct task_struct;
  45 void hardwall_switch_tasks(struct task_struct *prev, struct task_struct *next);
  46 void hardwall_deactivate_all(struct task_struct *task);
  47 int hardwall_ipi_valid(int cpu);
  48
  49 /* Hook hardwall code into changes in affinity. */
  50 #define arch_set_cpus_allowed(p, new_mask) do { \
  51         if (!cpumask_equal(&p->cpus_allowed, new_mask)) \
  52                 hardwall_deactivate_all(p); \
  53 } while (0)
  54 #endif
  55
  56 #endif /* __KERNEL__ */
  57
  58 #endif /* _ASM_TILE_SETUP_H */