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/* $OpenBSD: m88110.h,v 1.17 2004/06/22 04:55:35 miod Exp $ */
#ifndef __MACHINE_M88110_H__
#define __MACHINE_M88110_H__
/*
* 88110 CMMU definitions
*/
#define CMMU_ICMD 0
#define CMMU_ICTL 1
#define CMMU_ISAR 2
#define CMMU_ISAP 3
#define CMMU_IUAP 4
#define CMMU_IIR 5
#define CMMU_IBP 6
#define CMMU_IPPU 7
#define CMMU_IPPL 8
#define CMMU_ISR 9
#define CMMU_ILAR 10
#define CMMU_IPAR 11
#define CMMU_DCMD 12
#define CMMU_DCTL 13
#define CMMU_DSAR 14
#define CMMU_DSAP 15
#define CMMU_DUAP 16
#define CMMU_DIR 17
#define CMMU_DBP 18
#define CMMU_DPPU 19
#define CMMU_DPPL 20
#define CMMU_DSR 21
#define CMMU_DLAR 22
#define CMMU_DPAR 23
#define CMMU_ICMD_INV_ITIC 0x001 /* Invalidate Inst Cache & TIC */
#define CMMU_ICMD_INV_TIC 0x002 /* Invalidate TIC */
#define CMMU_ICMD_INV_LINE 0x005 /* Invalidate Inst Cache Line */
#define CMMU_ICMD_PRB_SUPR 0x008 /* MMU Probe Supervisor */
#define CMMU_ICMD_PRB_USER 0x009 /* MMU Probe User */
#define CMMU_ICMD_INV_SATC 0x00a /* Invalidate All Supervisor ATCs */
#define CMMU_ICMD_INV_UATC 0x00b /* Invalidate All User ATCs */
#define CMMU_ICTL_DID 0x8000 /* Double instruction disable */
#define CMMU_ICTL_PREN 0x4000 /* Branch Prediction Enable */
#define CMMU_ICTL_FRZ0 0x0100 /* Inst Cache Freeze Bank 0 */
#define CMMU_ICTL_FRZ1 0x0080 /* Inst Cache Freeze Bank 1 */
#define CMMU_ICTL_HTEN 0x0040 /* Hardware Table Search Enable */
#define CMMU_ICTL_MEN 0x0020 /* Inst MMU Enable */
#define CMMU_ICTL_BEN 0x0004 /* TIC Cache Enable */
#define CMMU_ICTL_CEN 0x0001 /* Inst Cache Enable */
#define CMMU_ISR_TBE 0x200000 /* Table Search Bus Error */
#define CMMU_ISR_SI 0x100000 /* Segment Fault*/
#define CMMU_ISR_PI 0x080000 /* Page Fault */
#define CMMU_ISR_SP 0x040000 /* Supervisor Protection Violation */
#define CMMU_ISR_PH 0x000800 /* PATC Hit */
#define CMMU_ISR_BH 0x000400 /* BATC Hit */
#define CMMU_ISR_SU 0x000200 /* Supervisor Bit */
#define CMMU_ISR_BE 0x000001 /* Bus Error */
#define CMMU_DCMD_FLUSH_PG 0x000 /* Flush Data Cache Page (sync) */
#define CMMU_DCMD_INV_ALL 0x001 /* Invalidate Data Cache All */
#define CMMU_DCMD_FLUSH_ALL 0x002 /* Flush Data Cache All (sync) */
#define CMMU_DCMD_FLUSH_ALL_INV 0x003 /* Flush Data Cache All (sync & inval) */
#define CMMU_DCMD_FLUSH_PG_INV 0x004 /* Flush Data Cache Page (sync & inval) */
#define CMMU_DCMD_INV_LINE 0x005 /* Invalidate Data Cache Line */
#define CMMU_DCMD_FLUSH_LINE 0x006 /* Flush Data Cache Line (sync)*/
#define CMMU_DCMD_FLUSH_LINE_INV 0x007 /* Flush Data Cache Line (sync & inval)*/
#define CMMU_DCMD_PRB_SUPR 0x008 /* MMU Probe Supervisor */
#define CMMU_DCMD_PRB_USER 0x009 /* MMU Probe User */
#define CMMU_DCMD_INV_SATC 0x00A /* Invalidate All Supervisor ATCs */
#define CMMU_DCMD_INV_UATC 0x00B /* Invalidate All User ATCs */
#define CMMU_DCTL_RSVD7 0x40000 /* Reserved */
#define CMMU_DCTL_RSVD6 0x20000 /* Reserved */
#define CMMU_DCTL_RSVD5 0x10000 /* Reserved */
#define CMMU_DCTL_RSVD4 0x8000 /* Reserved */
#define CMMU_DCTL_RSVD3 0x4000 /* Reserved */
#define CMMU_DCTL_XMEM 0x2000 /* store -> load sequence */
#define CMMU_DCTL_DEN 0x1000 /* Decoupled Cache Access Enable */
#define CMMU_DCTL_FWT 0x0800 /* Force Write Through */
#define CMMU_DCTL_BPEN1 0x0400 /* Break Point Enable 1 */
#define CMMU_DCTL_BPEN0 0x0200 /* Break Point Enable 0 */
#define CMMU_DCTL_FRZ0 0x0100 /* Data Cache Freeze Bank 0 */
#define CMMU_DCTL_FRZ1 0x0080 /* Data Cache Freeze Bank 1 */
#define CMMU_DCTL_HTEN 0x0040 /* Hardware Table Search Enable */
#define CMMU_DCTL_MEN 0x0020 /* Data MMU Enable */
#define CMMU_DCTL_RSVD2 0x0010 /* Reserved */
#define CMMU_DCTL_ADS 0x0008 /* Allocat Disable */
#define CMMU_DCTL_RSVD1 0x0004 /* Reserved */
#define CMMU_DCTL_SEN 0x0002 /* Data Cache Snoop Enable */
#define CMMU_DCTL_CEN 0x0001 /* Data Cache Enable */
#define CMMU_DSR_TBE 0x200000 /* Table Search Bus Error */
#define CMMU_DSR_SI 0x100000 /* Segment Fault*/
#define CMMU_DSR_PI 0x080000 /* Page Fault */
#define CMMU_DSR_SP 0x040000 /* Supervisor Protection Violation */
#define CMMU_DSR_WE 0x020000 /* Write Protection Violation */
#define CMMU_DSR_BPE 0x010000 /* Break Point Exception */
#define CMMU_DSR_PH 0x000800 /* PATC Hit */
#define CMMU_DSR_BH 0x000400 /* BATC Hit */
#define CMMU_DSR_SU 0x000200 /* Supervisor Bit */
#define CMMU_DSR_RW 0x000100 /* Read Bit */
#define CMMU_DSR_CP 0x000004 /* Copyback Error */
#define CMMU_DSR_WA 0x000002 /* Write-Allocate Bus Error */
#define CMMU_DSR_BE 0x000001 /* Bus Error */
#define CMMU_READ 0
#define CMMU_WRITE 1
#define CMMU_DATA 1
#define CMMU_INST 0
/* definitions for use of the BATC */
#define BATC_512K (0x00 << BATC_BLKSHIFT)
#define BATC_1M (0x01 << BATC_BLKSHIFT)
#define BATC_2M (0x03 << BATC_BLKSHIFT)
#define BATC_4M (0x07 << BATC_BLKSHIFT)
#define BATC_8M (0x0f << BATC_BLKSHIFT)
#define BATC_16M (0x1f << BATC_BLKSHIFT)
#define BATC_32M (0x3f << BATC_BLKSHIFT)
#define BATC_64M (0x7f << BATC_BLKSHIFT)
#define CLINE_MASK 0x1f
#define CLINE_SIZE (8 * 32)
#ifndef _LOCORE
void set_icmd(unsigned value);
void set_ictl(unsigned value);
void set_isar(unsigned value);
void set_isap(unsigned value);
void set_iuap(unsigned value);
void set_iir(unsigned value);
void set_ibp(unsigned value);
void set_ippu(unsigned value);
void set_ippl(unsigned value);
void set_isr(unsigned value);
void set_dcmd(unsigned value);
void set_dctl(unsigned value);
void set_dsar(unsigned value);
void set_dsap(unsigned value);
void set_duap(unsigned value);
void set_dir(unsigned value);
void set_dbp(unsigned value);
void set_dppu(unsigned value);
void set_dppl(unsigned value);
void set_dsr(unsigned value);
/* get routines */
unsigned get_icmd(void);
unsigned get_ictl(void);
unsigned get_isar(void);
unsigned get_isap(void);
unsigned get_iuap(void);
unsigned get_iir(void);
unsigned get_ibp(void);
unsigned get_ippu(void);
unsigned get_ippl(void);
unsigned get_isr(void);
unsigned get_dcmd(void);
unsigned get_dctl(void);
unsigned get_dsar(void);
unsigned get_dsap(void);
unsigned get_duap(void);
unsigned get_dir(void);
unsigned get_dbp(void);
unsigned get_dppu(void);
unsigned get_dppl(void);
unsigned get_dsr(void);
/* Cache inlines */
#define line_addr(x) (paddr_t)((x) & ~CLINE_MASK)
#define page_addr(x) (paddr_t)((x) & ~PAGE_MASK)
static __inline__ void mc88110_flush_data_line(paddr_t x)
{
unsigned dctl = get_dctl();
if (dctl & CMMU_DCTL_CEN) {
set_dsar(line_addr(x));
set_dcmd(CMMU_DCMD_FLUSH_LINE);
}
}
static __inline__ void mc88110_flush_data_page(paddr_t x)
{
unsigned dctl = get_dctl();
if (dctl & CMMU_DCTL_CEN) {
set_dsar(page_addr(x));
set_dcmd(CMMU_DCMD_FLUSH_PG);
}
}
static __inline__ void mc88110_flush_data(void)
{
unsigned dctl = get_dctl();
if (dctl & CMMU_DCTL_CEN) {
set_dcmd(CMMU_DCMD_FLUSH_ALL);
}
}
static __inline__ void mc88110_inval_data_line(paddr_t x)
{
set_dsar(line_addr(x));
set_dcmd(CMMU_DCMD_INV_LINE);
}
static __inline__ void mc88110_inval_data(void)
{
set_dcmd(CMMU_DCMD_INV_ALL);
}
static __inline__ void mc88110_sync_data_line(paddr_t x)
{
unsigned dctl = get_dctl();
if (dctl & CMMU_DCTL_CEN) {
set_dsar(line_addr(x));
set_dcmd(CMMU_DCMD_FLUSH_LINE_INV);
}
}
static __inline__ void mc88110_sync_data_page(paddr_t x)
{
unsigned dctl = get_dctl();
if (dctl & CMMU_DCTL_CEN) {
set_dsar(page_addr(x));
set_dcmd(CMMU_DCMD_FLUSH_PG_INV);
}
}
static __inline__ void mc88110_sync_data(void)
{
unsigned dctl = get_dctl();
if (dctl & CMMU_DCTL_CEN) {
set_dcmd(CMMU_DCMD_FLUSH_ALL_INV);
}
}
static __inline__ void mc88110_inval_inst_line(paddr_t x)
{
set_isar(line_addr(x));
set_icmd(CMMU_ICMD_INV_LINE);
}
static __inline__ void mc88110_inval_inst(void)
{
set_icmd(CMMU_ICMD_INV_ITIC);
}
#endif /* _LOCORE */
#endif /* __MACHINE_M88110_H__ */
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