arch/powerpc/include/asm/fsl_85xx_cache_sram.h

   1 /*
   2  * Copyright 2009 Freescale Semiconductor, Inc.
   3  *
   4  * Cache SRAM handling for QorIQ platform
   5  *
   6  * Author: Vivek Mahajan <vivek.mahajan@freescale.com>
   7
   8  * This file is derived from the original work done
   9  * by Sylvain Munaut for the Bestcomm SRAM allocator.
  10  *
  11  * This program is free software; you can redistribute  it and/or modify it
  12  * under  the terms of  the GNU General  Public License as published by the
  13  * Free Software Foundation;  either version 2 of the  License, or (at your
  14  * option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24  */
  25
  26 #ifndef __ASM_POWERPC_FSL_85XX_CACHE_SRAM_H__
  27 #define __ASM_POWERPC_FSL_85XX_CACHE_SRAM_H__
  28
  29 #include <asm/rheap.h>
  30 #include <linux/spinlock.h>
  31
  32 /*
  33  * Cache-SRAM
  34  */
  35
  36 struct mpc85xx_cache_sram {
  37         phys_addr_t base_phys;
  38         void *base_virt;
  39         unsigned int size;
  40         rh_info_t *rh;
  41         spinlock_t lock;
  42 };
  43
  44 extern void mpc85xx_cache_sram_free(void *ptr);
  45 extern void *mpc85xx_cache_sram_alloc(unsigned int size,
  46                                   phys_addr_t *phys, unsigned int align);
  47
  48 #endif /* __AMS_POWERPC_FSL_85XX_CACHE_SRAM_H__ */