1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
628 lines
20 KiB
C
628 lines
20 KiB
C
#ifndef __ALPHA_T2__H__
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#define __ALPHA_T2__H__
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#include <linux/config.h>
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#include <linux/types.h>
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#include <linux/spinlock.h>
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#include <asm/compiler.h>
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#include <asm/system.h>
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/*
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* T2 is the internal name for the core logic chipset which provides
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* memory controller and PCI access for the SABLE-based systems.
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*
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* This file is based on:
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*
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* SABLE I/O Specification
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* Revision/Update Information: 1.3
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*
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* jestabro@amt.tay1.dec.com Initial Version.
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*
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*/
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#define T2_MEM_R1_MASK 0x07ffffff /* Mem sparse region 1 mask is 26 bits */
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/* GAMMA-SABLE is a SABLE with EV5-based CPUs */
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/* All LYNX machines, EV4 or EV5, use the GAMMA bias also */
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#define _GAMMA_BIAS 0x8000000000UL
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#if defined(CONFIG_ALPHA_GENERIC)
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#define GAMMA_BIAS alpha_mv.sys.t2.gamma_bias
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#elif defined(CONFIG_ALPHA_GAMMA)
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#define GAMMA_BIAS _GAMMA_BIAS
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#else
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#define GAMMA_BIAS 0
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#endif
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/*
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* Memory spaces:
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*/
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#define T2_CONF (IDENT_ADDR + GAMMA_BIAS + 0x390000000UL)
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#define T2_IO (IDENT_ADDR + GAMMA_BIAS + 0x3a0000000UL)
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#define T2_SPARSE_MEM (IDENT_ADDR + GAMMA_BIAS + 0x200000000UL)
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#define T2_DENSE_MEM (IDENT_ADDR + GAMMA_BIAS + 0x3c0000000UL)
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#define T2_IOCSR (IDENT_ADDR + GAMMA_BIAS + 0x38e000000UL)
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#define T2_CERR1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000020UL)
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#define T2_CERR2 (IDENT_ADDR + GAMMA_BIAS + 0x38e000040UL)
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#define T2_CERR3 (IDENT_ADDR + GAMMA_BIAS + 0x38e000060UL)
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#define T2_PERR1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000080UL)
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#define T2_PERR2 (IDENT_ADDR + GAMMA_BIAS + 0x38e0000a0UL)
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#define T2_PSCR (IDENT_ADDR + GAMMA_BIAS + 0x38e0000c0UL)
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#define T2_HAE_1 (IDENT_ADDR + GAMMA_BIAS + 0x38e0000e0UL)
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#define T2_HAE_2 (IDENT_ADDR + GAMMA_BIAS + 0x38e000100UL)
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#define T2_HBASE (IDENT_ADDR + GAMMA_BIAS + 0x38e000120UL)
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#define T2_WBASE1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000140UL)
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#define T2_WMASK1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000160UL)
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#define T2_TBASE1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000180UL)
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#define T2_WBASE2 (IDENT_ADDR + GAMMA_BIAS + 0x38e0001a0UL)
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#define T2_WMASK2 (IDENT_ADDR + GAMMA_BIAS + 0x38e0001c0UL)
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#define T2_TBASE2 (IDENT_ADDR + GAMMA_BIAS + 0x38e0001e0UL)
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#define T2_TLBBR (IDENT_ADDR + GAMMA_BIAS + 0x38e000200UL)
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#define T2_IVR (IDENT_ADDR + GAMMA_BIAS + 0x38e000220UL)
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#define T2_HAE_3 (IDENT_ADDR + GAMMA_BIAS + 0x38e000240UL)
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#define T2_HAE_4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000260UL)
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/* The CSRs below are T3/T4 only */
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#define T2_WBASE3 (IDENT_ADDR + GAMMA_BIAS + 0x38e000280UL)
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#define T2_WMASK3 (IDENT_ADDR + GAMMA_BIAS + 0x38e0002a0UL)
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#define T2_TBASE3 (IDENT_ADDR + GAMMA_BIAS + 0x38e0002c0UL)
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#define T2_TDR0 (IDENT_ADDR + GAMMA_BIAS + 0x38e000300UL)
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#define T2_TDR1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000320UL)
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#define T2_TDR2 (IDENT_ADDR + GAMMA_BIAS + 0x38e000340UL)
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#define T2_TDR3 (IDENT_ADDR + GAMMA_BIAS + 0x38e000360UL)
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#define T2_TDR4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000380UL)
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#define T2_TDR5 (IDENT_ADDR + GAMMA_BIAS + 0x38e0003a0UL)
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#define T2_TDR6 (IDENT_ADDR + GAMMA_BIAS + 0x38e0003c0UL)
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#define T2_TDR7 (IDENT_ADDR + GAMMA_BIAS + 0x38e0003e0UL)
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#define T2_WBASE4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000400UL)
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#define T2_WMASK4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000420UL)
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#define T2_TBASE4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000440UL)
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#define T2_AIR (IDENT_ADDR + GAMMA_BIAS + 0x38e000460UL)
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#define T2_VAR (IDENT_ADDR + GAMMA_BIAS + 0x38e000480UL)
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#define T2_DIR (IDENT_ADDR + GAMMA_BIAS + 0x38e0004a0UL)
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#define T2_ICE (IDENT_ADDR + GAMMA_BIAS + 0x38e0004c0UL)
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#define T2_HAE_ADDRESS T2_HAE_1
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/* T2 CSRs are in the non-cachable primary IO space from 3.8000.0000 to
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3.8fff.ffff
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*
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* +--------------+ 3 8000 0000
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* | CPU 0 CSRs |
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* +--------------+ 3 8100 0000
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* | CPU 1 CSRs |
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* +--------------+ 3 8200 0000
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* | CPU 2 CSRs |
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* +--------------+ 3 8300 0000
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* | CPU 3 CSRs |
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* +--------------+ 3 8400 0000
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* | CPU Reserved |
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* +--------------+ 3 8700 0000
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* | Mem Reserved |
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* +--------------+ 3 8800 0000
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* | Mem 0 CSRs |
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* +--------------+ 3 8900 0000
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* | Mem 1 CSRs |
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* +--------------+ 3 8a00 0000
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* | Mem 2 CSRs |
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* +--------------+ 3 8b00 0000
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* | Mem 3 CSRs |
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* +--------------+ 3 8c00 0000
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* | Mem Reserved |
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* +--------------+ 3 8e00 0000
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* | PCI Bridge |
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* +--------------+ 3 8f00 0000
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* | Expansion IO |
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* +--------------+ 3 9000 0000
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*
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*
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*/
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#define T2_CPU0_BASE (IDENT_ADDR + GAMMA_BIAS + 0x380000000L)
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#define T2_CPU1_BASE (IDENT_ADDR + GAMMA_BIAS + 0x381000000L)
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#define T2_CPU2_BASE (IDENT_ADDR + GAMMA_BIAS + 0x382000000L)
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#define T2_CPU3_BASE (IDENT_ADDR + GAMMA_BIAS + 0x383000000L)
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#define T2_CPUn_BASE(n) (T2_CPU0_BASE + (((n)&3) * 0x001000000L))
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#define T2_MEM0_BASE (IDENT_ADDR + GAMMA_BIAS + 0x388000000L)
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#define T2_MEM1_BASE (IDENT_ADDR + GAMMA_BIAS + 0x389000000L)
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#define T2_MEM2_BASE (IDENT_ADDR + GAMMA_BIAS + 0x38a000000L)
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#define T2_MEM3_BASE (IDENT_ADDR + GAMMA_BIAS + 0x38b000000L)
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/*
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* Sable CPU Module CSRS
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*
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* These are CSRs for hardware other than the CPU chip on the CPU module.
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* The CPU module has Backup Cache control logic, Cbus control logic, and
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* interrupt control logic on it. There is a duplicate tag store to speed
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* up maintaining cache coherency.
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*/
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struct sable_cpu_csr {
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unsigned long bcc; long fill_00[3]; /* Backup Cache Control */
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unsigned long bcce; long fill_01[3]; /* Backup Cache Correctable Error */
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unsigned long bccea; long fill_02[3]; /* B-Cache Corr Err Address Latch */
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unsigned long bcue; long fill_03[3]; /* B-Cache Uncorrectable Error */
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unsigned long bcuea; long fill_04[3]; /* B-Cache Uncorr Err Addr Latch */
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unsigned long dter; long fill_05[3]; /* Duplicate Tag Error */
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unsigned long cbctl; long fill_06[3]; /* CBus Control */
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unsigned long cbe; long fill_07[3]; /* CBus Error */
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unsigned long cbeal; long fill_08[3]; /* CBus Error Addr Latch low */
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unsigned long cbeah; long fill_09[3]; /* CBus Error Addr Latch high */
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unsigned long pmbx; long fill_10[3]; /* Processor Mailbox */
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unsigned long ipir; long fill_11[3]; /* Inter-Processor Int Request */
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unsigned long sic; long fill_12[3]; /* System Interrupt Clear */
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unsigned long adlk; long fill_13[3]; /* Address Lock (LDxL/STxC) */
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unsigned long madrl; long fill_14[3]; /* CBus Miss Address */
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unsigned long rev; long fill_15[3]; /* CMIC Revision */
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};
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/*
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* Data structure for handling T2 machine checks:
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*/
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struct el_t2_frame_header {
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unsigned int elcf_fid; /* Frame ID (from above) */
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unsigned int elcf_size; /* Size of frame in bytes */
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};
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struct el_t2_procdata_mcheck {
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unsigned long elfmc_paltemp[32]; /* PAL TEMP REGS. */
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/* EV4-specific fields */
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unsigned long elfmc_exc_addr; /* Addr of excepting insn. */
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unsigned long elfmc_exc_sum; /* Summary of arith traps. */
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unsigned long elfmc_exc_mask; /* Exception mask (from exc_sum). */
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unsigned long elfmc_iccsr; /* IBox hardware enables. */
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unsigned long elfmc_pal_base; /* Base address for PALcode. */
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unsigned long elfmc_hier; /* Hardware Interrupt Enable. */
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unsigned long elfmc_hirr; /* Hardware Interrupt Request. */
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unsigned long elfmc_mm_csr; /* D-stream fault info. */
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unsigned long elfmc_dc_stat; /* D-cache status (ECC/Parity Err). */
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unsigned long elfmc_dc_addr; /* EV3 Phys Addr for ECC/DPERR. */
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unsigned long elfmc_abox_ctl; /* ABox Control Register. */
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unsigned long elfmc_biu_stat; /* BIU Status. */
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unsigned long elfmc_biu_addr; /* BUI Address. */
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unsigned long elfmc_biu_ctl; /* BIU Control. */
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unsigned long elfmc_fill_syndrome; /* For correcting ECC errors. */
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unsigned long elfmc_fill_addr;/* Cache block which was being read. */
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unsigned long elfmc_va; /* Effective VA of fault or miss. */
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unsigned long elfmc_bc_tag; /* Backup Cache Tag Probe Results. */
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};
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/*
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* Sable processor specific Machine Check Data segment.
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*/
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struct el_t2_logout_header {
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unsigned int elfl_size; /* size in bytes of logout area. */
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unsigned int elfl_sbz1:31; /* Should be zero. */
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unsigned int elfl_retry:1; /* Retry flag. */
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unsigned int elfl_procoffset; /* Processor-specific offset. */
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unsigned int elfl_sysoffset; /* Offset of system-specific. */
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unsigned int elfl_error_type; /* PAL error type code. */
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unsigned int elfl_frame_rev; /* PAL Frame revision. */
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};
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struct el_t2_sysdata_mcheck {
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unsigned long elcmc_bcc; /* CSR 0 */
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unsigned long elcmc_bcce; /* CSR 1 */
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unsigned long elcmc_bccea; /* CSR 2 */
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unsigned long elcmc_bcue; /* CSR 3 */
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unsigned long elcmc_bcuea; /* CSR 4 */
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unsigned long elcmc_dter; /* CSR 5 */
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unsigned long elcmc_cbctl; /* CSR 6 */
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unsigned long elcmc_cbe; /* CSR 7 */
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unsigned long elcmc_cbeal; /* CSR 8 */
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unsigned long elcmc_cbeah; /* CSR 9 */
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unsigned long elcmc_pmbx; /* CSR 10 */
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unsigned long elcmc_ipir; /* CSR 11 */
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unsigned long elcmc_sic; /* CSR 12 */
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unsigned long elcmc_adlk; /* CSR 13 */
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unsigned long elcmc_madrl; /* CSR 14 */
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unsigned long elcmc_crrev4; /* CSR 15 */
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};
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/*
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* Sable memory error frame - sable pfms section 3.42
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*/
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struct el_t2_data_memory {
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struct el_t2_frame_header elcm_hdr; /* ID$MEM-FERR = 0x08 */
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unsigned int elcm_module; /* Module id. */
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unsigned int elcm_res04; /* Reserved. */
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unsigned long elcm_merr; /* CSR0: Error Reg 1. */
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unsigned long elcm_mcmd1; /* CSR1: Command Trap 1. */
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unsigned long elcm_mcmd2; /* CSR2: Command Trap 2. */
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unsigned long elcm_mconf; /* CSR3: Configuration. */
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unsigned long elcm_medc1; /* CSR4: EDC Status 1. */
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unsigned long elcm_medc2; /* CSR5: EDC Status 2. */
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unsigned long elcm_medcc; /* CSR6: EDC Control. */
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unsigned long elcm_msctl; /* CSR7: Stream Buffer Control. */
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unsigned long elcm_mref; /* CSR8: Refresh Control. */
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unsigned long elcm_filter; /* CSR9: CRD Filter Control. */
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};
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/*
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* Sable other CPU error frame - sable pfms section 3.43
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*/
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struct el_t2_data_other_cpu {
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short elco_cpuid; /* CPU ID */
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short elco_res02[3];
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unsigned long elco_bcc; /* CSR 0 */
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unsigned long elco_bcce; /* CSR 1 */
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unsigned long elco_bccea; /* CSR 2 */
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unsigned long elco_bcue; /* CSR 3 */
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unsigned long elco_bcuea; /* CSR 4 */
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unsigned long elco_dter; /* CSR 5 */
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unsigned long elco_cbctl; /* CSR 6 */
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unsigned long elco_cbe; /* CSR 7 */
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unsigned long elco_cbeal; /* CSR 8 */
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unsigned long elco_cbeah; /* CSR 9 */
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unsigned long elco_pmbx; /* CSR 10 */
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unsigned long elco_ipir; /* CSR 11 */
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unsigned long elco_sic; /* CSR 12 */
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unsigned long elco_adlk; /* CSR 13 */
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unsigned long elco_madrl; /* CSR 14 */
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unsigned long elco_crrev4; /* CSR 15 */
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};
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/*
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* Sable other CPU error frame - sable pfms section 3.44
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*/
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struct el_t2_data_t2{
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struct el_t2_frame_header elct_hdr; /* ID$T2-FRAME */
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unsigned long elct_iocsr; /* IO Control and Status Register */
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unsigned long elct_cerr1; /* Cbus Error Register 1 */
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unsigned long elct_cerr2; /* Cbus Error Register 2 */
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unsigned long elct_cerr3; /* Cbus Error Register 3 */
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unsigned long elct_perr1; /* PCI Error Register 1 */
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unsigned long elct_perr2; /* PCI Error Register 2 */
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unsigned long elct_hae0_1; /* High Address Extension Register 1 */
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unsigned long elct_hae0_2; /* High Address Extension Register 2 */
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unsigned long elct_hbase; /* High Base Register */
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unsigned long elct_wbase1; /* Window Base Register 1 */
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unsigned long elct_wmask1; /* Window Mask Register 1 */
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unsigned long elct_tbase1; /* Translated Base Register 1 */
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unsigned long elct_wbase2; /* Window Base Register 2 */
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unsigned long elct_wmask2; /* Window Mask Register 2 */
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unsigned long elct_tbase2; /* Translated Base Register 2 */
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unsigned long elct_tdr0; /* TLB Data Register 0 */
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unsigned long elct_tdr1; /* TLB Data Register 1 */
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unsigned long elct_tdr2; /* TLB Data Register 2 */
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unsigned long elct_tdr3; /* TLB Data Register 3 */
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unsigned long elct_tdr4; /* TLB Data Register 4 */
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unsigned long elct_tdr5; /* TLB Data Register 5 */
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unsigned long elct_tdr6; /* TLB Data Register 6 */
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unsigned long elct_tdr7; /* TLB Data Register 7 */
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};
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/*
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* Sable error log data structure - sable pfms section 3.40
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*/
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struct el_t2_data_corrected {
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unsigned long elcpb_biu_stat;
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unsigned long elcpb_biu_addr;
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unsigned long elcpb_biu_ctl;
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unsigned long elcpb_fill_syndrome;
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unsigned long elcpb_fill_addr;
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unsigned long elcpb_bc_tag;
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};
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/*
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* Sable error log data structure
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* Note there are 4 memory slots on sable (see t2.h)
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*/
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struct el_t2_frame_mcheck {
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struct el_t2_frame_header elfmc_header; /* ID$P-FRAME_MCHECK */
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struct el_t2_logout_header elfmc_hdr;
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struct el_t2_procdata_mcheck elfmc_procdata;
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struct el_t2_sysdata_mcheck elfmc_sysdata;
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struct el_t2_data_t2 elfmc_t2data;
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struct el_t2_data_memory elfmc_memdata[4];
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struct el_t2_frame_header elfmc_footer; /* empty */
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};
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/*
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* Sable error log data structures on memory errors
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*/
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struct el_t2_frame_corrected {
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struct el_t2_frame_header elfcc_header; /* ID$P-BC-COR */
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struct el_t2_logout_header elfcc_hdr;
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struct el_t2_data_corrected elfcc_procdata;
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/* struct el_t2_data_t2 elfcc_t2data; */
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/* struct el_t2_data_memory elfcc_memdata[4]; */
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struct el_t2_frame_header elfcc_footer; /* empty */
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};
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#ifdef __KERNEL__
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#ifndef __EXTERN_INLINE
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#define __EXTERN_INLINE extern inline
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#define __IO_EXTERN_INLINE
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#endif
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/*
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* I/O functions:
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*
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* T2 (the core logic PCI/memory support chipset for the SABLE
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* series of processors uses a sparse address mapping scheme to
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* get at PCI memory and I/O.
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*/
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#define vip volatile int *
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#define vuip volatile unsigned int *
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static inline u8 t2_inb(unsigned long addr)
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{
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long result = *(vip) ((addr << 5) + T2_IO + 0x00);
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return __kernel_extbl(result, addr & 3);
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}
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static inline void t2_outb(u8 b, unsigned long addr)
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{
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unsigned long w;
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w = __kernel_insbl(b, addr & 3);
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*(vuip) ((addr << 5) + T2_IO + 0x00) = w;
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mb();
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}
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static inline u16 t2_inw(unsigned long addr)
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{
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long result = *(vip) ((addr << 5) + T2_IO + 0x08);
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return __kernel_extwl(result, addr & 3);
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}
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static inline void t2_outw(u16 b, unsigned long addr)
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{
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unsigned long w;
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w = __kernel_inswl(b, addr & 3);
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*(vuip) ((addr << 5) + T2_IO + 0x08) = w;
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mb();
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}
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static inline u32 t2_inl(unsigned long addr)
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{
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return *(vuip) ((addr << 5) + T2_IO + 0x18);
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}
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static inline void t2_outl(u32 b, unsigned long addr)
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{
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*(vuip) ((addr << 5) + T2_IO + 0x18) = b;
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mb();
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}
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/*
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* Memory functions.
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*
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* For reading and writing 8 and 16 bit quantities we need to
|
|
* go through one of the three sparse address mapping regions
|
|
* and use the HAE_MEM CSR to provide some bits of the address.
|
|
* The following few routines use only sparse address region 1
|
|
* which gives 1Gbyte of accessible space which relates exactly
|
|
* to the amount of PCI memory mapping *into* system address space.
|
|
* See p 6-17 of the specification but it looks something like this:
|
|
*
|
|
* 21164 Address:
|
|
*
|
|
* 3 2 1
|
|
* 9876543210987654321098765432109876543210
|
|
* 1ZZZZ0.PCI.QW.Address............BBLL
|
|
*
|
|
* ZZ = SBZ
|
|
* BB = Byte offset
|
|
* LL = Transfer length
|
|
*
|
|
* PCI Address:
|
|
*
|
|
* 3 2 1
|
|
* 10987654321098765432109876543210
|
|
* HHH....PCI.QW.Address........ 00
|
|
*
|
|
* HHH = 31:29 HAE_MEM CSR
|
|
*
|
|
*/
|
|
|
|
#define t2_set_hae { \
|
|
msb = addr >> 27; \
|
|
addr &= T2_MEM_R1_MASK; \
|
|
set_hae(msb); \
|
|
}
|
|
|
|
static spinlock_t t2_hae_lock = SPIN_LOCK_UNLOCKED;
|
|
|
|
__EXTERN_INLINE u8 t2_readb(const volatile void __iomem *xaddr)
|
|
{
|
|
unsigned long addr = (unsigned long) xaddr;
|
|
unsigned long result, msb;
|
|
unsigned long flags;
|
|
spin_lock_irqsave(&t2_hae_lock, flags);
|
|
|
|
t2_set_hae;
|
|
|
|
result = *(vip) ((addr << 5) + T2_SPARSE_MEM + 0x00);
|
|
spin_unlock_irqrestore(&t2_hae_lock, flags);
|
|
return __kernel_extbl(result, addr & 3);
|
|
}
|
|
|
|
__EXTERN_INLINE u16 t2_readw(const volatile void __iomem *xaddr)
|
|
{
|
|
unsigned long addr = (unsigned long) xaddr;
|
|
unsigned long result, msb;
|
|
unsigned long flags;
|
|
spin_lock_irqsave(&t2_hae_lock, flags);
|
|
|
|
t2_set_hae;
|
|
|
|
result = *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x08);
|
|
spin_unlock_irqrestore(&t2_hae_lock, flags);
|
|
return __kernel_extwl(result, addr & 3);
|
|
}
|
|
|
|
/*
|
|
* On SABLE with T2, we must use SPARSE memory even for 32-bit access,
|
|
* because we cannot access all of DENSE without changing its HAE.
|
|
*/
|
|
__EXTERN_INLINE u32 t2_readl(const volatile void __iomem *xaddr)
|
|
{
|
|
unsigned long addr = (unsigned long) xaddr;
|
|
unsigned long result, msb;
|
|
unsigned long flags;
|
|
spin_lock_irqsave(&t2_hae_lock, flags);
|
|
|
|
t2_set_hae;
|
|
|
|
result = *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x18);
|
|
spin_unlock_irqrestore(&t2_hae_lock, flags);
|
|
return result & 0xffffffffUL;
|
|
}
|
|
|
|
__EXTERN_INLINE u64 t2_readq(const volatile void __iomem *xaddr)
|
|
{
|
|
unsigned long addr = (unsigned long) xaddr;
|
|
unsigned long r0, r1, work, msb;
|
|
unsigned long flags;
|
|
spin_lock_irqsave(&t2_hae_lock, flags);
|
|
|
|
t2_set_hae;
|
|
|
|
work = (addr << 5) + T2_SPARSE_MEM + 0x18;
|
|
r0 = *(vuip)(work);
|
|
r1 = *(vuip)(work + (4 << 5));
|
|
spin_unlock_irqrestore(&t2_hae_lock, flags);
|
|
return r1 << 32 | r0;
|
|
}
|
|
|
|
__EXTERN_INLINE void t2_writeb(u8 b, volatile void __iomem *xaddr)
|
|
{
|
|
unsigned long addr = (unsigned long) xaddr;
|
|
unsigned long msb, w;
|
|
unsigned long flags;
|
|
spin_lock_irqsave(&t2_hae_lock, flags);
|
|
|
|
t2_set_hae;
|
|
|
|
w = __kernel_insbl(b, addr & 3);
|
|
*(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x00) = w;
|
|
spin_unlock_irqrestore(&t2_hae_lock, flags);
|
|
}
|
|
|
|
__EXTERN_INLINE void t2_writew(u16 b, volatile void __iomem *xaddr)
|
|
{
|
|
unsigned long addr = (unsigned long) xaddr;
|
|
unsigned long msb, w;
|
|
unsigned long flags;
|
|
spin_lock_irqsave(&t2_hae_lock, flags);
|
|
|
|
t2_set_hae;
|
|
|
|
w = __kernel_inswl(b, addr & 3);
|
|
*(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x08) = w;
|
|
spin_unlock_irqrestore(&t2_hae_lock, flags);
|
|
}
|
|
|
|
/*
|
|
* On SABLE with T2, we must use SPARSE memory even for 32-bit access,
|
|
* because we cannot access all of DENSE without changing its HAE.
|
|
*/
|
|
__EXTERN_INLINE void t2_writel(u32 b, volatile void __iomem *xaddr)
|
|
{
|
|
unsigned long addr = (unsigned long) xaddr;
|
|
unsigned long msb;
|
|
unsigned long flags;
|
|
spin_lock_irqsave(&t2_hae_lock, flags);
|
|
|
|
t2_set_hae;
|
|
|
|
*(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x18) = b;
|
|
spin_unlock_irqrestore(&t2_hae_lock, flags);
|
|
}
|
|
|
|
__EXTERN_INLINE void t2_writeq(u64 b, volatile void __iomem *xaddr)
|
|
{
|
|
unsigned long addr = (unsigned long) xaddr;
|
|
unsigned long msb, work;
|
|
unsigned long flags;
|
|
spin_lock_irqsave(&t2_hae_lock, flags);
|
|
|
|
t2_set_hae;
|
|
|
|
work = (addr << 5) + T2_SPARSE_MEM + 0x18;
|
|
*(vuip)work = b;
|
|
*(vuip)(work + (4 << 5)) = b >> 32;
|
|
spin_unlock_irqrestore(&t2_hae_lock, flags);
|
|
}
|
|
|
|
__EXTERN_INLINE void __iomem *t2_ioportmap(unsigned long addr)
|
|
{
|
|
return (void __iomem *)(addr + T2_IO);
|
|
}
|
|
|
|
__EXTERN_INLINE void __iomem *t2_ioremap(unsigned long addr,
|
|
unsigned long size)
|
|
{
|
|
return (void __iomem *)(addr + T2_DENSE_MEM);
|
|
}
|
|
|
|
__EXTERN_INLINE int t2_is_ioaddr(unsigned long addr)
|
|
{
|
|
return (long)addr >= 0;
|
|
}
|
|
|
|
__EXTERN_INLINE int t2_is_mmio(const volatile void __iomem *addr)
|
|
{
|
|
return (unsigned long)addr >= T2_DENSE_MEM;
|
|
}
|
|
|
|
/* New-style ioread interface. The mmio routines are so ugly for T2 that
|
|
it doesn't make sense to merge the pio and mmio routines. */
|
|
|
|
#define IOPORT(OS, NS) \
|
|
__EXTERN_INLINE unsigned int t2_ioread##NS(void __iomem *xaddr) \
|
|
{ \
|
|
if (t2_is_mmio(xaddr)) \
|
|
return t2_read##OS(xaddr - T2_DENSE_MEM); \
|
|
else \
|
|
return t2_in##OS((unsigned long)xaddr - T2_IO); \
|
|
} \
|
|
__EXTERN_INLINE void t2_iowrite##NS(u##NS b, void __iomem *xaddr) \
|
|
{ \
|
|
if (t2_is_mmio(xaddr)) \
|
|
t2_write##OS(b, xaddr - T2_DENSE_MEM); \
|
|
else \
|
|
t2_out##OS(b, (unsigned long)xaddr - T2_IO); \
|
|
}
|
|
|
|
IOPORT(b, 8)
|
|
IOPORT(w, 16)
|
|
IOPORT(l, 32)
|
|
|
|
#undef IOPORT
|
|
|
|
#undef vip
|
|
#undef vuip
|
|
|
|
#undef __IO_PREFIX
|
|
#define __IO_PREFIX t2
|
|
#define t2_trivial_rw_bw 0
|
|
#define t2_trivial_rw_lq 0
|
|
#define t2_trivial_io_bw 0
|
|
#define t2_trivial_io_lq 0
|
|
#define t2_trivial_iounmap 1
|
|
#include <asm/io_trivial.h>
|
|
|
|
#ifdef __IO_EXTERN_INLINE
|
|
#undef __EXTERN_INLINE
|
|
#undef __IO_EXTERN_INLINE
|
|
#endif
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif /* __ALPHA_T2__H__ */
|