mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-30 04:36:41 +07:00
29440a2b4c
- Move cache initialization to C from assembly. - Move anomaly workaround for writing [ID]MEM_CONTROL to assembly, so that we don't have to mess around with .align directives in C source. - Fix a bug where bfin_write_DMEM_CONTROL would write to IMEM_CONTROL - Break out CPLB related code from kernel/setup.c into their own file. - Don't define variables in header files, only declare them. Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
97 lines
2.9 KiB
C
97 lines
2.9 KiB
C
/*
|
|
* File: include/asm-blackfin/cplbinit.h
|
|
* Based on:
|
|
* Author:
|
|
*
|
|
* Created:
|
|
* Description:
|
|
*
|
|
* Modified:
|
|
* Copyright 2004-2006 Analog Devices Inc.
|
|
*
|
|
* Bugs: Enter bugs at http://blackfin.uclinux.org/
|
|
*
|
|
* 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; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* 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. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, see the file COPYING, or write
|
|
* to the Free Software Foundation, Inc.,
|
|
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include <asm/blackfin.h>
|
|
#include <asm/cplb.h>
|
|
|
|
#define INITIAL_T 0x1
|
|
#define SWITCH_T 0x2
|
|
#define I_CPLB 0x4
|
|
#define D_CPLB 0x8
|
|
|
|
#define IN_KERNEL 1
|
|
|
|
enum
|
|
{ZERO_P, L1I_MEM, L1D_MEM, SDRAM_KERN , SDRAM_RAM_MTD, SDRAM_DMAZ, RES_MEM, ASYNC_MEM, L2_MEM};
|
|
|
|
struct cplb_desc {
|
|
u32 start; /* start address */
|
|
u32 end; /* end address */
|
|
u32 psize; /* prefered size if any otherwise 1MB or 4MB*/
|
|
u16 attr;/* attributes */
|
|
u16 i_conf;/* I-CPLB DATA */
|
|
u16 d_conf;/* D-CPLB DATA */
|
|
u16 valid;/* valid */
|
|
const s8 name[30];/* name */
|
|
};
|
|
|
|
struct cplb_tab {
|
|
u_long *tab;
|
|
u16 pos;
|
|
u16 size;
|
|
};
|
|
|
|
extern u_long icplb_table[MAX_CPLBS+1];
|
|
extern u_long dcplb_table[MAX_CPLBS+1];
|
|
|
|
/* Till here we are discussing about the static memory management model.
|
|
* However, the operating envoronments commonly define more CPLB
|
|
* descriptors to cover the entire addressable memory than will fit into
|
|
* the available on-chip 16 CPLB MMRs. When this happens, the below table
|
|
* will be used which will hold all the potentially required CPLB descriptors
|
|
*
|
|
* This is how Page descriptor Table is implemented in uClinux/Blackfin.
|
|
*/
|
|
|
|
#ifdef CONFIG_CPLB_SWITCH_TAB_L1
|
|
extern u_long ipdt_table[MAX_SWITCH_I_CPLBS+1]__attribute__((l1_data));
|
|
extern u_long dpdt_table[MAX_SWITCH_D_CPLBS+1]__attribute__((l1_data));
|
|
|
|
#ifdef CONFIG_CPLB_INFO
|
|
extern u_long ipdt_swapcount_table[MAX_SWITCH_I_CPLBS]__attribute__((l1_data));
|
|
extern u_long dpdt_swapcount_table[MAX_SWITCH_D_CPLBS]__attribute__((l1_data));
|
|
#endif /* CONFIG_CPLB_INFO */
|
|
|
|
#else
|
|
|
|
extern u_long ipdt_table[MAX_SWITCH_I_CPLBS+1];
|
|
extern u_long dpdt_table[MAX_SWITCH_D_CPLBS+1];
|
|
|
|
#ifdef CONFIG_CPLB_INFO
|
|
extern u_long ipdt_swapcount_table[MAX_SWITCH_I_CPLBS];
|
|
extern u_long dpdt_swapcount_table[MAX_SWITCH_D_CPLBS];
|
|
#endif /* CONFIG_CPLB_INFO */
|
|
|
|
#endif /*CONFIG_CPLB_SWITCH_TAB_L1*/
|
|
|
|
extern unsigned long reserved_mem_dcache_on;
|
|
extern unsigned long reserved_mem_icache_on;
|
|
|
|
extern void generate_cpl_tables(void);
|