arch/cris/include/arch-v32/mach-a3/mach/arbiter.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_CRIS_ARCH_ARBITER_H
   3 #define _ASM_CRIS_ARCH_ARBITER_H
   4
   5 #define EXT_REGION 0
   6 #define INT_REGION 1
   7
   8 typedef void (watch_callback)(void);
   9
  10 enum {
  11         arbiter_all_dmas = 0x7fe,
  12         arbiter_cpu = 0x1800,
  13         arbiter_all_clients = 0x7fff
  14 };
  15
  16 enum {
  17         arbiter_bar_all_clients = 0x1ff
  18 };
  19
  20 enum {
  21         arbiter_all_read = 0x55,
  22         arbiter_all_write = 0xaa,
  23         arbiter_all_accesses = 0xff
  24 };
  25
  26 #define MARB_CLIENTS(foo_cli, bar_cli) (((bar_cli) << 16) | (foo_cli))
  27
  28 int crisv32_arbiter_allocate_bandwidth(int client, int region,
  29                 unsigned long bandwidth);
  30 int crisv32_arbiter_watch(unsigned long start, unsigned long size,
  31                 unsigned long clients, unsigned long accesses,
  32                 watch_callback * cb);
  33 int crisv32_arbiter_unwatch(int id);
  34
  35 #endif