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linux/arch/alpha/include/asm/core_t2.h
Ivan Kokshaysky 98c532ecbe alpha: use single HAE window on T2 core logic (gamma, sable) 
T2 are the only alpha SMP systems that do HAE switching at runtime, which
is fundamentally racy on SMP.  This patch limits MMIO space on T2 to HAE0
only, like we did on MCPCIA (rawhide) long ago.  This leaves us with only
112 Mb of PCI MMIO (128 Mb HAE aperture minus 16 Mb reserved for EISA),
but since linux PCI allocations are reasonably tight, it should be enough
for sane hardware configurations.

Also, fix a typo in MCPCIA_FROB_MMIO macro which shouldn't call set_hae()
if MCPCIA_ONE_HAE_WINDOW is defined.  It's more for correctness, as
set_hae() is a no-op anyway in that case.

Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-26 16:52:12 -07:00

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#ifndef __ALPHA_T2__H__
#define __ALPHA_T2__H__
/* Fit everything into one 128MB HAE window. */
#define T2_ONE_HAE_WINDOW 1
#include <linux/types.h>
#include <linux/spinlock.h>
#include <asm/compiler.h>
#include <asm/system.h>
/*
* T2 is the internal name for the core logic chipset which provides
* memory controller and PCI access for the SABLE-based systems.
*
* This file is based on:
*
* SABLE I/O Specification
* Revision/Update Information: 1.3
*
* jestabro@amt.tay1.dec.com Initial Version.
*
*/
#define T2_MEM_R1_MASK 0x07ffffff /* Mem sparse region 1 mask is 27 bits */
/* GAMMA-SABLE is a SABLE with EV5-based CPUs */
/* All LYNX machines, EV4 or EV5, use the GAMMA bias also */
#define _GAMMA_BIAS 0x8000000000UL
#if defined(CONFIG_ALPHA_GENERIC)
#define GAMMA_BIAS alpha_mv.sys.t2.gamma_bias
#elif defined(CONFIG_ALPHA_GAMMA)
#define GAMMA_BIAS _GAMMA_BIAS
#else
#define GAMMA_BIAS 0
#endif
/*
* Memory spaces:
*/
#define T2_CONF (IDENT_ADDR + GAMMA_BIAS + 0x390000000UL)
#define T2_IO (IDENT_ADDR + GAMMA_BIAS + 0x3a0000000UL)
#define T2_SPARSE_MEM (IDENT_ADDR + GAMMA_BIAS + 0x200000000UL)
#define T2_DENSE_MEM (IDENT_ADDR + GAMMA_BIAS + 0x3c0000000UL)
#define T2_IOCSR (IDENT_ADDR + GAMMA_BIAS + 0x38e000000UL)
#define T2_CERR1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000020UL)
#define T2_CERR2 (IDENT_ADDR + GAMMA_BIAS + 0x38e000040UL)
#define T2_CERR3 (IDENT_ADDR + GAMMA_BIAS + 0x38e000060UL)
#define T2_PERR1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000080UL)
#define T2_PERR2 (IDENT_ADDR + GAMMA_BIAS + 0x38e0000a0UL)
#define T2_PSCR (IDENT_ADDR + GAMMA_BIAS + 0x38e0000c0UL)
#define T2_HAE_1 (IDENT_ADDR + GAMMA_BIAS + 0x38e0000e0UL)
#define T2_HAE_2 (IDENT_ADDR + GAMMA_BIAS + 0x38e000100UL)
#define T2_HBASE (IDENT_ADDR + GAMMA_BIAS + 0x38e000120UL)
#define T2_WBASE1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000140UL)
#define T2_WMASK1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000160UL)
#define T2_TBASE1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000180UL)
#define T2_WBASE2 (IDENT_ADDR + GAMMA_BIAS + 0x38e0001a0UL)
#define T2_WMASK2 (IDENT_ADDR + GAMMA_BIAS + 0x38e0001c0UL)
#define T2_TBASE2 (IDENT_ADDR + GAMMA_BIAS + 0x38e0001e0UL)
#define T2_TLBBR (IDENT_ADDR + GAMMA_BIAS + 0x38e000200UL)
#define T2_IVR (IDENT_ADDR + GAMMA_BIAS + 0x38e000220UL)
#define T2_HAE_3 (IDENT_ADDR + GAMMA_BIAS + 0x38e000240UL)
#define T2_HAE_4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000260UL)
/* The CSRs below are T3/T4 only */
#define T2_WBASE3 (IDENT_ADDR + GAMMA_BIAS + 0x38e000280UL)
#define T2_WMASK3 (IDENT_ADDR + GAMMA_BIAS + 0x38e0002a0UL)
#define T2_TBASE3 (IDENT_ADDR + GAMMA_BIAS + 0x38e0002c0UL)
#define T2_TDR0 (IDENT_ADDR + GAMMA_BIAS + 0x38e000300UL)
#define T2_TDR1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000320UL)
#define T2_TDR2 (IDENT_ADDR + GAMMA_BIAS + 0x38e000340UL)
#define T2_TDR3 (IDENT_ADDR + GAMMA_BIAS + 0x38e000360UL)
#define T2_TDR4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000380UL)
#define T2_TDR5 (IDENT_ADDR + GAMMA_BIAS + 0x38e0003a0UL)
#define T2_TDR6 (IDENT_ADDR + GAMMA_BIAS + 0x38e0003c0UL)
#define T2_TDR7 (IDENT_ADDR + GAMMA_BIAS + 0x38e0003e0UL)
#define T2_WBASE4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000400UL)
#define T2_WMASK4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000420UL)
#define T2_TBASE4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000440UL)
#define T2_AIR (IDENT_ADDR + GAMMA_BIAS + 0x38e000460UL)
#define T2_VAR (IDENT_ADDR + GAMMA_BIAS + 0x38e000480UL)
#define T2_DIR (IDENT_ADDR + GAMMA_BIAS + 0x38e0004a0UL)
#define T2_ICE (IDENT_ADDR + GAMMA_BIAS + 0x38e0004c0UL)
#ifndef T2_ONE_HAE_WINDOW
#define T2_HAE_ADDRESS T2_HAE_1
#endif
/* T2 CSRs are in the non-cachable primary IO space from 3.8000.0000 to
3.8fff.ffff
*
* +--------------+ 3 8000 0000
* | CPU 0 CSRs |
* +--------------+ 3 8100 0000
* | CPU 1 CSRs |
* +--------------+ 3 8200 0000
* | CPU 2 CSRs |
* +--------------+ 3 8300 0000
* | CPU 3 CSRs |
* +--------------+ 3 8400 0000
* | CPU Reserved |
* +--------------+ 3 8700 0000
* | Mem Reserved |
* +--------------+ 3 8800 0000
* | Mem 0 CSRs |
* +--------------+ 3 8900 0000
* | Mem 1 CSRs |
* +--------------+ 3 8a00 0000
* | Mem 2 CSRs |
* +--------------+ 3 8b00 0000
* | Mem 3 CSRs |
* +--------------+ 3 8c00 0000
* | Mem Reserved |
* +--------------+ 3 8e00 0000
* | PCI Bridge |
* +--------------+ 3 8f00 0000
* | Expansion IO |
* +--------------+ 3 9000 0000
*
*
*/
#define T2_CPU0_BASE (IDENT_ADDR + GAMMA_BIAS + 0x380000000L)
#define T2_CPU1_BASE (IDENT_ADDR + GAMMA_BIAS + 0x381000000L)
#define T2_CPU2_BASE (IDENT_ADDR + GAMMA_BIAS + 0x382000000L)
#define T2_CPU3_BASE (IDENT_ADDR + GAMMA_BIAS + 0x383000000L)
#define T2_CPUn_BASE(n) (T2_CPU0_BASE + (((n)&3) * 0x001000000L))
#define T2_MEM0_BASE (IDENT_ADDR + GAMMA_BIAS + 0x388000000L)
#define T2_MEM1_BASE (IDENT_ADDR + GAMMA_BIAS + 0x389000000L)
#define T2_MEM2_BASE (IDENT_ADDR + GAMMA_BIAS + 0x38a000000L)
#define T2_MEM3_BASE (IDENT_ADDR + GAMMA_BIAS + 0x38b000000L)
/*
* Sable CPU Module CSRS
*
* These are CSRs for hardware other than the CPU chip on the CPU module.
* The CPU module has Backup Cache control logic, Cbus control logic, and
* interrupt control logic on it. There is a duplicate tag store to speed
* up maintaining cache coherency.
*/
struct sable_cpu_csr {
unsigned long bcc; long fill_00[3]; /* Backup Cache Control */
unsigned long bcce; long fill_01[3]; /* Backup Cache Correctable Error */
unsigned long bccea; long fill_02[3]; /* B-Cache Corr Err Address Latch */
unsigned long bcue; long fill_03[3]; /* B-Cache Uncorrectable Error */
unsigned long bcuea; long fill_04[3]; /* B-Cache Uncorr Err Addr Latch */
unsigned long dter; long fill_05[3]; /* Duplicate Tag Error */
unsigned long cbctl; long fill_06[3]; /* CBus Control */
unsigned long cbe; long fill_07[3]; /* CBus Error */
unsigned long cbeal; long fill_08[3]; /* CBus Error Addr Latch low */
unsigned long cbeah; long fill_09[3]; /* CBus Error Addr Latch high */
unsigned long pmbx; long fill_10[3]; /* Processor Mailbox */
unsigned long ipir; long fill_11[3]; /* Inter-Processor Int Request */
unsigned long sic; long fill_12[3]; /* System Interrupt Clear */
unsigned long adlk; long fill_13[3]; /* Address Lock (LDxL/STxC) */
unsigned long madrl; long fill_14[3]; /* CBus Miss Address */
unsigned long rev; long fill_15[3]; /* CMIC Revision */
};
/*
* Data structure for handling T2 machine checks:
*/
struct el_t2_frame_header {
unsigned int elcf_fid; /* Frame ID (from above) */
unsigned int elcf_size; /* Size of frame in bytes */
};
struct el_t2_procdata_mcheck {
unsigned long elfmc_paltemp[32]; /* PAL TEMP REGS. */
/* EV4-specific fields */
unsigned long elfmc_exc_addr; /* Addr of excepting insn. */
unsigned long elfmc_exc_sum; /* Summary of arith traps. */
unsigned long elfmc_exc_mask; /* Exception mask (from exc_sum). */
unsigned long elfmc_iccsr; /* IBox hardware enables. */
unsigned long elfmc_pal_base; /* Base address for PALcode. */
unsigned long elfmc_hier; /* Hardware Interrupt Enable. */
unsigned long elfmc_hirr; /* Hardware Interrupt Request. */
unsigned long elfmc_mm_csr; /* D-stream fault info. */
unsigned long elfmc_dc_stat; /* D-cache status (ECC/Parity Err). */
unsigned long elfmc_dc_addr; /* EV3 Phys Addr for ECC/DPERR. */
unsigned long elfmc_abox_ctl; /* ABox Control Register. */
unsigned long elfmc_biu_stat; /* BIU Status. */
unsigned long elfmc_biu_addr; /* BUI Address. */
unsigned long elfmc_biu_ctl; /* BIU Control. */
unsigned long elfmc_fill_syndrome; /* For correcting ECC errors. */
unsigned long elfmc_fill_addr;/* Cache block which was being read. */
unsigned long elfmc_va; /* Effective VA of fault or miss. */
unsigned long elfmc_bc_tag; /* Backup Cache Tag Probe Results. */
};
/*
* Sable processor specific Machine Check Data segment.
*/
struct el_t2_logout_header {
unsigned int elfl_size; /* size in bytes of logout area. */
unsigned int elfl_sbz1:31; /* Should be zero. */
unsigned int elfl_retry:1; /* Retry flag. */
unsigned int elfl_procoffset; /* Processor-specific offset. */
unsigned int elfl_sysoffset; /* Offset of system-specific. */
unsigned int elfl_error_type; /* PAL error type code. */
unsigned int elfl_frame_rev; /* PAL Frame revision. */
};
struct el_t2_sysdata_mcheck {
unsigned long elcmc_bcc; /* CSR 0 */
unsigned long elcmc_bcce; /* CSR 1 */
unsigned long elcmc_bccea; /* CSR 2 */
unsigned long elcmc_bcue; /* CSR 3 */
unsigned long elcmc_bcuea; /* CSR 4 */
unsigned long elcmc_dter; /* CSR 5 */
unsigned long elcmc_cbctl; /* CSR 6 */
unsigned long elcmc_cbe; /* CSR 7 */
unsigned long elcmc_cbeal; /* CSR 8 */
unsigned long elcmc_cbeah; /* CSR 9 */
unsigned long elcmc_pmbx; /* CSR 10 */
unsigned long elcmc_ipir; /* CSR 11 */
unsigned long elcmc_sic; /* CSR 12 */
unsigned long elcmc_adlk; /* CSR 13 */
unsigned long elcmc_madrl; /* CSR 14 */
unsigned long elcmc_crrev4; /* CSR 15 */
};
/*
* Sable memory error frame - sable pfms section 3.42
*/
struct el_t2_data_memory {
struct el_t2_frame_header elcm_hdr; /* ID$MEM-FERR = 0x08 */
unsigned int elcm_module; /* Module id. */
unsigned int elcm_res04; /* Reserved. */
unsigned long elcm_merr; /* CSR0: Error Reg 1. */
unsigned long elcm_mcmd1; /* CSR1: Command Trap 1. */
unsigned long elcm_mcmd2; /* CSR2: Command Trap 2. */
unsigned long elcm_mconf; /* CSR3: Configuration. */
unsigned long elcm_medc1; /* CSR4: EDC Status 1. */
unsigned long elcm_medc2; /* CSR5: EDC Status 2. */
unsigned long elcm_medcc; /* CSR6: EDC Control. */
unsigned long elcm_msctl; /* CSR7: Stream Buffer Control. */
unsigned long elcm_mref; /* CSR8: Refresh Control. */
unsigned long elcm_filter; /* CSR9: CRD Filter Control. */
};
/*
* Sable other CPU error frame - sable pfms section 3.43
*/
struct el_t2_data_other_cpu {
short elco_cpuid; /* CPU ID */
short elco_res02[3];
unsigned long elco_bcc; /* CSR 0 */
unsigned long elco_bcce; /* CSR 1 */
unsigned long elco_bccea; /* CSR 2 */
unsigned long elco_bcue; /* CSR 3 */
unsigned long elco_bcuea; /* CSR 4 */
unsigned long elco_dter; /* CSR 5 */
unsigned long elco_cbctl; /* CSR 6 */
unsigned long elco_cbe; /* CSR 7 */
unsigned long elco_cbeal; /* CSR 8 */
unsigned long elco_cbeah; /* CSR 9 */
unsigned long elco_pmbx; /* CSR 10 */
unsigned long elco_ipir; /* CSR 11 */
unsigned long elco_sic; /* CSR 12 */
unsigned long elco_adlk; /* CSR 13 */
unsigned long elco_madrl; /* CSR 14 */
unsigned long elco_crrev4; /* CSR 15 */
};
/*
* Sable other CPU error frame - sable pfms section 3.44
*/
struct el_t2_data_t2{
struct el_t2_frame_header elct_hdr; /* ID$T2-FRAME */
unsigned long elct_iocsr; /* IO Control and Status Register */
unsigned long elct_cerr1; /* Cbus Error Register 1 */
unsigned long elct_cerr2; /* Cbus Error Register 2 */
unsigned long elct_cerr3; /* Cbus Error Register 3 */
unsigned long elct_perr1; /* PCI Error Register 1 */
unsigned long elct_perr2; /* PCI Error Register 2 */
unsigned long elct_hae0_1; /* High Address Extension Register 1 */
unsigned long elct_hae0_2; /* High Address Extension Register 2 */
unsigned long elct_hbase; /* High Base Register */
unsigned long elct_wbase1; /* Window Base Register 1 */
unsigned long elct_wmask1; /* Window Mask Register 1 */
unsigned long elct_tbase1; /* Translated Base Register 1 */
unsigned long elct_wbase2; /* Window Base Register 2 */
unsigned long elct_wmask2; /* Window Mask Register 2 */
unsigned long elct_tbase2; /* Translated Base Register 2 */
unsigned long elct_tdr0; /* TLB Data Register 0 */
unsigned long elct_tdr1; /* TLB Data Register 1 */
unsigned long elct_tdr2; /* TLB Data Register 2 */
unsigned long elct_tdr3; /* TLB Data Register 3 */
unsigned long elct_tdr4; /* TLB Data Register 4 */
unsigned long elct_tdr5; /* TLB Data Register 5 */
unsigned long elct_tdr6; /* TLB Data Register 6 */
unsigned long elct_tdr7; /* TLB Data Register 7 */
};
/*
* Sable error log data structure - sable pfms section 3.40
*/
struct el_t2_data_corrected {
unsigned long elcpb_biu_stat;
unsigned long elcpb_biu_addr;
unsigned long elcpb_biu_ctl;
unsigned long elcpb_fill_syndrome;
unsigned long elcpb_fill_addr;
unsigned long elcpb_bc_tag;
};
/*
* Sable error log data structure
* Note there are 4 memory slots on sable (see t2.h)
*/
struct el_t2_frame_mcheck {
struct el_t2_frame_header elfmc_header; /* ID$P-FRAME_MCHECK */
struct el_t2_logout_header elfmc_hdr;
struct el_t2_procdata_mcheck elfmc_procdata;
struct el_t2_sysdata_mcheck elfmc_sysdata;
struct el_t2_data_t2 elfmc_t2data;
struct el_t2_data_memory elfmc_memdata[4];
struct el_t2_frame_header elfmc_footer; /* empty */
};
/*
* Sable error log data structures on memory errors
*/
struct el_t2_frame_corrected {
struct el_t2_frame_header elfcc_header; /* ID$P-BC-COR */
struct el_t2_logout_header elfcc_hdr;
struct el_t2_data_corrected elfcc_procdata;
/* struct el_t2_data_t2 elfcc_t2data; */
/* struct el_t2_data_memory elfcc_memdata[4]; */
struct el_t2_frame_header elfcc_footer; /* empty */
};
#ifdef __KERNEL__
#ifndef __EXTERN_INLINE
#define __EXTERN_INLINE extern inline
#define __IO_EXTERN_INLINE
#endif
/*
* I/O functions:
*
* T2 (the core logic PCI/memory support chipset for the SABLE
* series of processors uses a sparse address mapping scheme to
* get at PCI memory and I/O.
*/
#define vip volatile int *
#define vuip volatile unsigned int *
extern inline u8 t2_inb(unsigned long addr)
{
long result = *(vip) ((addr << 5) + T2_IO + 0x00);
return __kernel_extbl(result, addr & 3);
}
extern inline void t2_outb(u8 b, unsigned long addr)
{
unsigned long w;
w = __kernel_insbl(b, addr & 3);
*(vuip) ((addr << 5) + T2_IO + 0x00) = w;
mb();
}
extern inline u16 t2_inw(unsigned long addr)
{
long result = *(vip) ((addr << 5) + T2_IO + 0x08);
return __kernel_extwl(result, addr & 3);
}
extern inline void t2_outw(u16 b, unsigned long addr)
{
unsigned long w;
w = __kernel_inswl(b, addr & 3);
*(vuip) ((addr << 5) + T2_IO + 0x08) = w;
mb();
}
extern inline u32 t2_inl(unsigned long addr)
{
return *(vuip) ((addr << 5) + T2_IO + 0x18);
}
extern inline void t2_outl(u32 b, unsigned long addr)
{
*(vuip) ((addr << 5) + T2_IO + 0x18) = b;
mb();
}
/*
* Memory functions.
*
* 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
*
*/
#ifdef T2_ONE_HAE_WINDOW
#define t2_set_hae
#else
#define t2_set_hae { \
unsigned long msb = addr >> 27; \
addr &= T2_MEM_R1_MASK; \
set_hae(msb); \
}
#endif
/*
* NOTE: take T2_DENSE_MEM off in each readX/writeX routine, since
* they may be called directly, rather than through the
* ioreadNN/iowriteNN routines.
*/
__EXTERN_INLINE u8 t2_readb(const volatile void __iomem *xaddr)
{
unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
unsigned long result;
t2_set_hae;
result = *(vip) ((addr << 5) + T2_SPARSE_MEM + 0x00);
return __kernel_extbl(result, addr & 3);
}
__EXTERN_INLINE u16 t2_readw(const volatile void __iomem *xaddr)
{
unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
unsigned long result;
t2_set_hae;
result = *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x08);
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 - T2_DENSE_MEM;
unsigned long result;
t2_set_hae;
result = *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x18);
return result & 0xffffffffUL;
}
__EXTERN_INLINE u64 t2_readq(const volatile void __iomem *xaddr)
{
unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
unsigned long r0, r1, work;
t2_set_hae;
work = (addr << 5) + T2_SPARSE_MEM + 0x18;
r0 = *(vuip)(work);
r1 = *(vuip)(work + (4 << 5));
return r1 << 32 | r0;
}
__EXTERN_INLINE void t2_writeb(u8 b, volatile void __iomem *xaddr)
{
unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
unsigned long w;
t2_set_hae;
w = __kernel_insbl(b, addr & 3);
*(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x00) = w;
}
__EXTERN_INLINE void t2_writew(u16 b, volatile void __iomem *xaddr)
{
unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
unsigned long w;
t2_set_hae;
w = __kernel_inswl(b, addr & 3);
*(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x08) = w;
}
/*
* 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 - T2_DENSE_MEM;
t2_set_hae;
*(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x18) = b;
}
__EXTERN_INLINE void t2_writeq(u64 b, volatile void __iomem *xaddr)
{
unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
unsigned long work;
t2_set_hae;
work = (addr << 5) + T2_SPARSE_MEM + 0x18;
*(vuip)work = b;
*(vuip)(work + (4 << 5)) = b >> 32;
}
__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); \
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); \
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__ */
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