Linux-2.6.12-rc2
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!
diff --git a/include/asm-alpha/core_t2.h b/include/asm-alpha/core_t2.h
new file mode 100644
index 0000000..5c1c403
--- /dev/null
+++ b/include/asm-alpha/core_t2.h
@@ -0,0 +1,628 @@
+#ifndef __ALPHA_T2__H__
+#define __ALPHA_T2__H__
+
+#include <linux/config.h>
+#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 26 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)
+
+#define T2_HAE_ADDRESS T2_HAE_1
+
+/* 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 *
+
+static inline u8 t2_inb(unsigned long addr)
+{
+ long result = *(vip) ((addr << 5) + T2_IO + 0x00);
+ return __kernel_extbl(result, addr & 3);
+}
+
+static 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();
+}
+
+static inline u16 t2_inw(unsigned long addr)
+{
+ long result = *(vip) ((addr << 5) + T2_IO + 0x08);
+ return __kernel_extwl(result, addr & 3);
+}
+
+static 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();
+}
+
+static inline u32 t2_inl(unsigned long addr)
+{
+ return *(vuip) ((addr << 5) + T2_IO + 0x18);
+}
+
+static 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
+ *
+ */
+
+#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__ */