core_mcpcia.h
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- #ifndef __ALPHA_MCPCIA__H__
- #define __ALPHA_MCPCIA__H__
- /* Define to experiment with fitting everything into one 128MB HAE window.
- One window per bus, that is. */
- #define MCPCIA_ONE_HAE_WINDOW 1
- #include <linux/types.h>
- #include <linux/pci.h>
- #include <asm/compiler.h>
- /*
- * MCPCIA is the internal name for a core logic chipset which provides
- * PCI access for the RAWHIDE family of systems.
- *
- * This file is based on:
- *
- * RAWHIDE System Programmer's Manual
- * 16-May-96
- * Rev. 1.4
- *
- */
- /*------------------------------------------------------------------------**
- ** **
- ** I/O procedures **
- ** **
- ** inport[b|w|t|l], outport[b|w|t|l] 8:16:24:32 IO xfers **
- ** inportbxt: 8 bits only **
- ** inport: alias of inportw **
- ** outport: alias of outportw **
- ** **
- ** inmem[b|w|t|l], outmem[b|w|t|l] 8:16:24:32 ISA memory xfers **
- ** inmembxt: 8 bits only **
- ** inmem: alias of inmemw **
- ** outmem: alias of outmemw **
- ** **
- **------------------------------------------------------------------------*/
- /* MCPCIA ADDRESS BIT DEFINITIONS
- *
- * 3333 3333 3322 2222 2222 1111 1111 11
- * 9876 5432 1098 7654 3210 9876 5432 1098 7654 3210
- * ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
- * 1 000
- * ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
- * | ||
- * | Byte Enable --+ |
- * | Transfer Length --+
- * +-- IO space, not cached
- *
- * Byte Transfer
- * Enable Length Transfer Byte Address
- * adr<6:5> adr<4:3> Length Enable Adder
- * ---------------------------------------------
- * 00 00 Byte 1110 0x000
- * 01 00 Byte 1101 0x020
- * 10 00 Byte 1011 0x040
- * 11 00 Byte 0111 0x060
- *
- * 00 01 Word 1100 0x008
- * 01 01 Word 1001 0x028 <= Not supported in this code.
- * 10 01 Word 0011 0x048
- *
- * 00 10 Tribyte 1000 0x010
- * 01 10 Tribyte 0001 0x030
- *
- * 10 11 Longword 0000 0x058
- *
- * Note that byte enables are asserted low.
- *
- */
- #define MCPCIA_MID(m) ((unsigned long)(m) << 33)
- /* Dodge has PCI0 and PCI1 at MID 4 and 5 respectively.
- Durango adds PCI2 and PCI3 at MID 6 and 7 respectively. */
- #define MCPCIA_HOSE2MID(h) ((h) + 4)
- #define MCPCIA_MEM_MASK 0x07ffffff /* SPARSE Mem region mask is 27 bits */
- /*
- * Memory spaces:
- */
- #define MCPCIA_SPARSE(m) (IDENT_ADDR + 0xf000000000UL + MCPCIA_MID(m))
- #define MCPCIA_DENSE(m) (IDENT_ADDR + 0xf100000000UL + MCPCIA_MID(m))
- #define MCPCIA_IO(m) (IDENT_ADDR + 0xf180000000UL + MCPCIA_MID(m))
- #define MCPCIA_CONF(m) (IDENT_ADDR + 0xf1c0000000UL + MCPCIA_MID(m))
- #define MCPCIA_CSR(m) (IDENT_ADDR + 0xf1e0000000UL + MCPCIA_MID(m))
- #define MCPCIA_IO_IACK(m) (IDENT_ADDR + 0xf1f0000000UL + MCPCIA_MID(m))
- #define MCPCIA_DENSE_IO(m) (IDENT_ADDR + 0xe1fc000000UL + MCPCIA_MID(m))
- #define MCPCIA_DENSE_CONF(m) (IDENT_ADDR + 0xe1fe000000UL + MCPCIA_MID(m))
- /*
- * General Registers
- */
- #define MCPCIA_REV(m) (MCPCIA_CSR(m) + 0x000)
- #define MCPCIA_WHOAMI(m) (MCPCIA_CSR(m) + 0x040)
- #define MCPCIA_PCI_LAT(m) (MCPCIA_CSR(m) + 0x080)
- #define MCPCIA_CAP_CTRL(m) (MCPCIA_CSR(m) + 0x100)
- #define MCPCIA_HAE_MEM(m) (MCPCIA_CSR(m) + 0x400)
- #define MCPCIA_HAE_IO(m) (MCPCIA_CSR(m) + 0x440)
- #define _MCPCIA_IACK_SC(m) (MCPCIA_CSR(m) + 0x480)
- #define MCPCIA_HAE_DENSE(m) (MCPCIA_CSR(m) + 0x4C0)
- /*
- * Interrupt Control registers
- */
- #define MCPCIA_INT_CTL(m) (MCPCIA_CSR(m) + 0x500)
- #define MCPCIA_INT_REQ(m) (MCPCIA_CSR(m) + 0x540)
- #define MCPCIA_INT_TARG(m) (MCPCIA_CSR(m) + 0x580)
- #define MCPCIA_INT_ADR(m) (MCPCIA_CSR(m) + 0x5C0)
- #define MCPCIA_INT_ADR_EXT(m) (MCPCIA_CSR(m) + 0x600)
- #define MCPCIA_INT_MASK0(m) (MCPCIA_CSR(m) + 0x640)
- #define MCPCIA_INT_MASK1(m) (MCPCIA_CSR(m) + 0x680)
- #define MCPCIA_INT_ACK0(m) (MCPCIA_CSR(m) + 0x10003f00)
- #define MCPCIA_INT_ACK1(m) (MCPCIA_CSR(m) + 0x10003f40)
- /*
- * Performance Monitor registers
- */
- #define MCPCIA_PERF_MON(m) (MCPCIA_CSR(m) + 0x300)
- #define MCPCIA_PERF_CONT(m) (MCPCIA_CSR(m) + 0x340)
- /*
- * Diagnostic Registers
- */
- #define MCPCIA_CAP_DIAG(m) (MCPCIA_CSR(m) + 0x700)
- #define MCPCIA_TOP_OF_MEM(m) (MCPCIA_CSR(m) + 0x7C0)
- /*
- * Error registers
- */
- #define MCPCIA_MC_ERR0(m) (MCPCIA_CSR(m) + 0x800)
- #define MCPCIA_MC_ERR1(m) (MCPCIA_CSR(m) + 0x840)
- #define MCPCIA_CAP_ERR(m) (MCPCIA_CSR(m) + 0x880)
- #define MCPCIA_PCI_ERR1(m) (MCPCIA_CSR(m) + 0x1040)
- #define MCPCIA_MDPA_STAT(m) (MCPCIA_CSR(m) + 0x4000)
- #define MCPCIA_MDPA_SYN(m) (MCPCIA_CSR(m) + 0x4040)
- #define MCPCIA_MDPA_DIAG(m) (MCPCIA_CSR(m) + 0x4080)
- #define MCPCIA_MDPB_STAT(m) (MCPCIA_CSR(m) + 0x8000)
- #define MCPCIA_MDPB_SYN(m) (MCPCIA_CSR(m) + 0x8040)
- #define MCPCIA_MDPB_DIAG(m) (MCPCIA_CSR(m) + 0x8080)
- /*
- * PCI Address Translation Registers.
- */
- #define MCPCIA_SG_TBIA(m) (MCPCIA_CSR(m) + 0x1300)
- #define MCPCIA_HBASE(m) (MCPCIA_CSR(m) + 0x1340)
- #define MCPCIA_W0_BASE(m) (MCPCIA_CSR(m) + 0x1400)
- #define MCPCIA_W0_MASK(m) (MCPCIA_CSR(m) + 0x1440)
- #define MCPCIA_T0_BASE(m) (MCPCIA_CSR(m) + 0x1480)
- #define MCPCIA_W1_BASE(m) (MCPCIA_CSR(m) + 0x1500)
- #define MCPCIA_W1_MASK(m) (MCPCIA_CSR(m) + 0x1540)
- #define MCPCIA_T1_BASE(m) (MCPCIA_CSR(m) + 0x1580)
- #define MCPCIA_W2_BASE(m) (MCPCIA_CSR(m) + 0x1600)
- #define MCPCIA_W2_MASK(m) (MCPCIA_CSR(m) + 0x1640)
- #define MCPCIA_T2_BASE(m) (MCPCIA_CSR(m) + 0x1680)
- #define MCPCIA_W3_BASE(m) (MCPCIA_CSR(m) + 0x1700)
- #define MCPCIA_W3_MASK(m) (MCPCIA_CSR(m) + 0x1740)
- #define MCPCIA_T3_BASE(m) (MCPCIA_CSR(m) + 0x1780)
- /* Hack! Only words for bus 0. */
- #if !MCPCIA_ONE_HAE_WINDOW
- #define MCPCIA_HAE_ADDRESS MCPCIA_HAE_MEM(4)
- #endif
- #define MCPCIA_IACK_SC _MCPCIA_IACK_SC(4)
- /*
- * The canonical non-remaped I/O and MEM addresses have these values
- * subtracted out. This is arranged so that folks manipulating ISA
- * devices can use their familiar numbers and have them map to bus 0.
- */
- #define MCPCIA_IO_BIAS MCPCIA_IO(4)
- #define MCPCIA_MEM_BIAS MCPCIA_DENSE(4)
- /* Offset between ram physical addresses and pci64 DAC bus addresses. */
- #define MCPCIA_DAC_OFFSET (1UL << 40)
- /*
- * Data structure for handling MCPCIA machine checks:
- */
- struct el_MCPCIA_uncorrected_frame_mcheck {
- struct el_common header;
- struct el_common_EV5_uncorrectable_mcheck procdata;
- };
- #ifdef __KERNEL__
- #ifndef __EXTERN_INLINE
- #define __EXTERN_INLINE extern inline
- #define __IO_EXTERN_INLINE
- #endif
- /*
- * I/O functions:
- *
- * MCPCIA, the RAWHIDE family PCI/memory support chipset for the EV5 (21164)
- * and EV56 (21164a) processors, can use either a sparse address mapping
- * scheme, or the so-called byte-word PCI address space, to get at PCI memory
- * and I/O.
- *
- * Unfortunately, we can't use BWIO with EV5, so for now, we always use SPARSE.
- */
- #define vucp volatile unsigned char *
- #define vusp volatile unsigned short *
- #define vip volatile int *
- #define vuip volatile unsigned int *
- #define vulp volatile unsigned long *
- __EXTERN_INLINE u8 mcpcia_inb(unsigned long in_addr)
- {
- unsigned long addr, hose, result;
- addr = in_addr & 0xffffUL;
- hose = in_addr & ~0xffffUL;
- /* ??? I wish I could get rid of this. But there's no ioremap
- equivalent for I/O space. PCI I/O can be forced into the
- correct hose's I/O region, but that doesn't take care of
- legacy ISA crap. */
- hose += MCPCIA_IO_BIAS;
- result = *(vip) ((addr << 5) + hose + 0x00);
- return __kernel_extbl(result, addr & 3);
- }
- __EXTERN_INLINE void mcpcia_outb(u8 b, unsigned long in_addr)
- {
- unsigned long addr, hose, w;
- addr = in_addr & 0xffffUL;
- hose = in_addr & ~0xffffUL;
- hose += MCPCIA_IO_BIAS;
- w = __kernel_insbl(b, addr & 3);
- *(vuip) ((addr << 5) + hose + 0x00) = w;
- mb();
- }
- __EXTERN_INLINE u16 mcpcia_inw(unsigned long in_addr)
- {
- unsigned long addr, hose, result;
- addr = in_addr & 0xffffUL;
- hose = in_addr & ~0xffffUL;
- hose += MCPCIA_IO_BIAS;
- result = *(vip) ((addr << 5) + hose + 0x08);
- return __kernel_extwl(result, addr & 3);
- }
- __EXTERN_INLINE void mcpcia_outw(u16 b, unsigned long in_addr)
- {
- unsigned long addr, hose, w;
- addr = in_addr & 0xffffUL;
- hose = in_addr & ~0xffffUL;
- hose += MCPCIA_IO_BIAS;
- w = __kernel_inswl(b, addr & 3);
- *(vuip) ((addr << 5) + hose + 0x08) = w;
- mb();
- }
- __EXTERN_INLINE u32 mcpcia_inl(unsigned long in_addr)
- {
- unsigned long addr, hose;
- addr = in_addr & 0xffffUL;
- hose = in_addr & ~0xffffUL;
- hose += MCPCIA_IO_BIAS;
- return *(vuip) ((addr << 5) + hose + 0x18);
- }
- __EXTERN_INLINE void mcpcia_outl(u32 b, unsigned long in_addr)
- {
- unsigned long addr, hose;
- addr = in_addr & 0xffffUL;
- hose = in_addr & ~0xffffUL;
- hose += MCPCIA_IO_BIAS;
- *(vuip) ((addr << 5) + hose + 0x18) = b;
- mb();
- }
- /*
- * Memory functions. 64-bit and 32-bit accesses are done through
- * dense memory space, everything else through sparse space.
- *
- * 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
- *
- */
- __EXTERN_INLINE unsigned long mcpcia_ioremap(unsigned long addr,
- unsigned long size
- __attribute__((unused)))
- {
- return addr + MCPCIA_MEM_BIAS;
- }
- __EXTERN_INLINE void mcpcia_iounmap(unsigned long addr)
- {
- return;
- }
- __EXTERN_INLINE int mcpcia_is_ioaddr(unsigned long addr)
- {
- return addr >= MCPCIA_SPARSE(0);
- }
- __EXTERN_INLINE u8 mcpcia_readb(unsigned long in_addr)
- {
- unsigned long addr = in_addr & 0xffffffffUL;
- unsigned long hose = in_addr & ~0xffffffffUL;
- unsigned long result, work;
- #if !MCPCIA_ONE_HAE_WINDOW
- unsigned long msb;
- msb = addr & ~MCPCIA_MEM_MASK;
- set_hae(msb);
- #endif
- addr = addr & MCPCIA_MEM_MASK;
- hose = hose - MCPCIA_DENSE(4) + MCPCIA_SPARSE(4);
- work = ((addr << 5) + hose + 0x00);
- result = *(vip) work;
- return __kernel_extbl(result, addr & 3);
- }
- __EXTERN_INLINE u16 mcpcia_readw(unsigned long in_addr)
- {
- unsigned long addr = in_addr & 0xffffffffUL;
- unsigned long hose = in_addr & ~0xffffffffUL;
- unsigned long result, work;
- #if !MCPCIA_ONE_HAE_WINDOW
- unsigned long msb;
- msb = addr & ~MCPCIA_MEM_MASK;
- set_hae(msb);
- #endif
- addr = addr & MCPCIA_MEM_MASK;
- hose = hose - MCPCIA_DENSE(4) + MCPCIA_SPARSE(4);
- work = ((addr << 5) + hose + 0x08);
- result = *(vip) work;
- return __kernel_extwl(result, addr & 3);
- }
- __EXTERN_INLINE void mcpcia_writeb(u8 b, unsigned long in_addr)
- {
- unsigned long addr = in_addr & 0xffffffffUL;
- unsigned long hose = in_addr & ~0xffffffffUL;
- unsigned long w;
- #if !MCPCIA_ONE_HAE_WINDOW
- unsigned long msb;
- msb = addr & ~MCPCIA_MEM_MASK;
- set_hae(msb);
- #endif
- addr = addr & MCPCIA_MEM_MASK;
- w = __kernel_insbl(b, in_addr & 3);
- hose = hose - MCPCIA_DENSE(4) + MCPCIA_SPARSE(4);
- *(vuip) ((addr << 5) + hose + 0x00) = w;
- }
- __EXTERN_INLINE void mcpcia_writew(u16 b, unsigned long in_addr)
- {
- unsigned long addr = in_addr & 0xffffffffUL;
- unsigned long hose = in_addr & ~0xffffffffUL;
- unsigned long w;
- #if !MCPCIA_ONE_HAE_WINDOW
- unsigned long msb;
- msb = addr & ~MCPCIA_MEM_MASK;
- set_hae(msb);
- #endif
- addr = addr & MCPCIA_MEM_MASK;
- w = __kernel_inswl(b, in_addr & 3);
- hose = hose - MCPCIA_DENSE(4) + MCPCIA_SPARSE(4);
- *(vuip) ((addr << 5) + hose + 0x08) = w;
- }
- __EXTERN_INLINE u32 mcpcia_readl(unsigned long addr)
- {
- return (*(vuip)addr) & 0xffffffff;
- }
- __EXTERN_INLINE u64 mcpcia_readq(unsigned long addr)
- {
- return *(vulp)addr;
- }
- __EXTERN_INLINE void mcpcia_writel(u32 b, unsigned long addr)
- {
- *(vuip)addr = b;
- }
- __EXTERN_INLINE void mcpcia_writeq(u64 b, unsigned long addr)
- {
- *(vulp)addr = b;
- }
- #undef vucp
- #undef vusp
- #undef vip
- #undef vuip
- #undef vulp
- #ifdef __WANT_IO_DEF
- #define __inb(p) mcpcia_inb((unsigned long)(p))
- #define __inw(p) mcpcia_inw((unsigned long)(p))
- #define __inl(p) mcpcia_inl((unsigned long)(p))
- #define __outb(x,p) mcpcia_outb((x),(unsigned long)(p))
- #define __outw(x,p) mcpcia_outw((x),(unsigned long)(p))
- #define __outl(x,p) mcpcia_outl((x),(unsigned long)(p))
- #define __readb(a) mcpcia_readb((unsigned long)(a))
- #define __readw(a) mcpcia_readw((unsigned long)(a))
- #define __readl(a) mcpcia_readl((unsigned long)(a))
- #define __readq(a) mcpcia_readq((unsigned long)(a))
- #define __writeb(x,a) mcpcia_writeb((x),(unsigned long)(a))
- #define __writew(x,a) mcpcia_writew((x),(unsigned long)(a))
- #define __writel(x,a) mcpcia_writel((x),(unsigned long)(a))
- #define __writeq(x,a) mcpcia_writeq((x),(unsigned long)(a))
- #define __ioremap(a,s) mcpcia_ioremap((unsigned long)(a),(s))
- #define __iounmap(a) mcpcia_iounmap((unsigned long)(a))
- #define __is_ioaddr(a) mcpcia_is_ioaddr((unsigned long)(a))
- #define __raw_readl(a) __readl(a)
- #define __raw_readq(a) __readq(a)
- #define __raw_writel(v,a) __writel((v),(a))
- #define __raw_writeq(v,a) __writeq((v),(a))
- #endif /* __WANT_IO_DEF */
- #ifdef __IO_EXTERN_INLINE
- #undef __EXTERN_INLINE
- #undef __IO_EXTERN_INLINE
- #endif
- #endif /* __KERNEL__ */
- #endif /* __ALPHA_MCPCIA__H__ */