diff options
Diffstat (limited to 'sysdeps/unix/sysv')
-rw-r--r-- | sysdeps/unix/sysv/linux/alpha/ioperm.c | 265 |
1 files changed, 217 insertions, 48 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/ioperm.c b/sysdeps/unix/sysv/linux/alpha/ioperm.c index 26d976ecad..83c4ec21ac 100644 --- a/sysdeps/unix/sysv/linux/alpha/ioperm.c +++ b/sysdeps/unix/sysv/linux/alpha/ioperm.c @@ -66,14 +66,72 @@ #define CIA_SPARSE_MEM (0xfffffc8000000000UL) #define CIA_DENSE_MEM (0xfffffc8600000000UL) +/* SABLE is EV4, GAMMA is EV5 */ #define T2_IO_BASE (0xfffffc03a0000000UL) #define T2_SPARSE_MEM (0xfffffc0200000000UL) #define T2_DENSE_MEM (0xfffffc03c0000000UL) +#define GAMMA_IO_BASE (0xfffffc83a0000000UL) +#define GAMMA_SPARSE_MEM (0xfffffc8200000000UL) +#define GAMMA_DENSE_MEM (0xfffffc83c0000000UL) + +/* these are for the RAWHIDE family */ +#define MCPCIA_IO_BASE (0xfffffcf980000000UL) +#define MCPCIA_SPARSE_MEM (0xfffffcf800000000UL) +#define MCPCIA_DENSE_MEM (0xfffffcf900000000UL) + +/* Tsunami has no SPARSE space */ +/* NOTE: these are hardwired to PCI bus 0 addresses!!! */ +/* Also, these are PHYSICAL, as/so there's no KSEG translation */ +#define TSUNAMI_IO_BASE (0x00000801fc000000UL + 0xfffffc0000000000UL) +#define TSUNAMI_DENSE_MEM (0x0000080000000000UL + 0xfffffc0000000000UL) + typedef enum { - IOSYS_UNKNOWN, IOSYS_JENSEN, IOSYS_APECS, IOSYS_CIA, IOSYS_T2 + IOSYS_UNKNOWN, IOSYS_JENSEN, IOSYS_APECS, IOSYS_CIA, IOSYS_T2, + IOSYS_TSUNAMI, IOSYS_MCPCIA, IOSYS_GAMMA, IOSYS_CPUDEP } iosys_t; +static struct io_system { + int hae_shift; + unsigned long int bus_memory_base; + unsigned long int sparse_bus_mem_base; + unsigned long int bus_io_base; +} io_system[] = { /* NOTE! must match iosys_t enumeration */ +/* UNKNOWN */ {0, 0, 0, 0}, +/* JENSEN */ {7, 0, JENSEN_SPARSE_MEM, JENSEN_IO_BASE}, +/* APECS */ {5, APECS_DENSE_MEM, APECS_SPARSE_MEM, APECS_IO_BASE}, +/* CIA */ {5, CIA_DENSE_MEM, CIA_SPARSE_MEM, CIA_IO_BASE}, +/* T2 */ {5, T2_DENSE_MEM, T2_SPARSE_MEM, T2_IO_BASE}, +/* TSUNAMI */ {0, TSUNAMI_DENSE_MEM, 0, TSUNAMI_IO_BASE}, +/* MCPCIA */ {5, MCPCIA_DENSE_MEM, MCPCIA_SPARSE_MEM, MCPCIA_IO_BASE}, +/* GAMMA */ {5, GAMMA_DENSE_MEM, GAMMA_SPARSE_MEM, GAMMA_IO_BASE}, +/* CPUDEP */ {0, 0, 0, 0}, +}; + +static struct platform { + const char *name; + iosys_t io_sys; +} platform[] = { + {"Alcor", IOSYS_CIA}, + {"Avanti", IOSYS_APECS}, + {"XL", IOSYS_APECS}, + {"Cabriolet", IOSYS_APECS}, + {"EB164", IOSYS_CIA}, + {"EB64+", IOSYS_APECS}, + {"EB66", IOSYS_APECS}, + {"EB66P", IOSYS_APECS}, + {"Jensen", IOSYS_JENSEN}, + {"Mikasa", IOSYS_CPUDEP}, + {"Noritake", IOSYS_CPUDEP}, + {"Noname", IOSYS_APECS}, + {"Sable", IOSYS_CPUDEP}, + {"Miata", IOSYS_CIA}, + {"Tsunami", IOSYS_TSUNAMI}, + {"Rawhide", IOSYS_MCPCIA}, + {"Ruffian", IOSYS_CIA}, + {"Takara", IOSYS_CIA}, +}; + struct ioswtch { void (*sethae)(unsigned long int addr); void (*outb)(unsigned char b, unsigned long int port); @@ -84,30 +142,6 @@ struct ioswtch { unsigned int (*inl)(unsigned long int port); }; -static struct platform { - const char *name; - int io_sys; - iosys_t hae_shift; - unsigned long int bus_memory_base; - unsigned long int sparse_bus_memory_base; -} platform[] = { - {"Alcor", IOSYS_CIA, 5, CIA_DENSE_MEM, CIA_SPARSE_MEM}, - {"Avanti", IOSYS_APECS, 5, APECS_DENSE_MEM, APECS_SPARSE_MEM}, - {"Cabriolet", IOSYS_APECS, 5, APECS_DENSE_MEM, APECS_SPARSE_MEM}, - {"EB164", IOSYS_CIA, 5, CIA_DENSE_MEM, CIA_SPARSE_MEM}, - {"EB64+", IOSYS_APECS, 5, APECS_DENSE_MEM, APECS_SPARSE_MEM}, - {"EB66", IOSYS_APECS, 5, APECS_DENSE_MEM, APECS_SPARSE_MEM}, - {"EB66P", IOSYS_APECS, 5, APECS_DENSE_MEM, APECS_SPARSE_MEM}, - {"Jensen", IOSYS_JENSEN, 7, 0, JENSEN_SPARSE_MEM}, - {"Mikasa", IOSYS_APECS, 5, APECS_DENSE_MEM, APECS_SPARSE_MEM}, - {"Mustang", IOSYS_APECS, 5, APECS_DENSE_MEM, APECS_SPARSE_MEM}, - {"Noname", IOSYS_APECS, 5, APECS_DENSE_MEM, APECS_SPARSE_MEM}, - {"Sable", IOSYS_T2, 5, T2_DENSE_MEM, T2_SPARSE_MEM}, - {"Miata", IOSYS_CIA, 5, CIA_DENSE_MEM, CIA_SPARSE_MEM}, - {"Ruffian", IOSYS_CIA, 5, CIA_DENSE_MEM, CIA_SPARSE_MEM}, -}; - - static struct { struct hae { unsigned long int cache; @@ -130,6 +164,8 @@ port_to_cpu_addr (unsigned long int port, iosys_t iosys, int size) { if (iosys == IOSYS_JENSEN) return (port << 7) + ((size - 1) << 5) + io.base; + else if (iosys == IOSYS_TSUNAMI) + return port + io.base; else return (port << 5) + ((size - 1) << 3) + io.base; } @@ -194,9 +230,6 @@ inline_outl (unsigned int b, unsigned long int port, iosys_t iosys) { unsigned long int addr = port_to_cpu_addr (port, iosys, 4); - if (port >= MAX_PORT) - return; - inline_sethae (0, iosys); *(vuip)addr = b; mb (); @@ -236,8 +269,77 @@ inline_inl (unsigned long int port, iosys_t iosys) return *(vuip) addr; } +/* + * Now define the inline functions for CPUs supporting byte/word insns, + * and whose core logic supports I/O space accesses utilizing them. + * + * These routines could be used by MIATA, for example, because it has + * and EV56 plus PYXIS, but it currently uses SPARSE anyway. + * + * These routines are necessary for TSUNAMI/TYPHOON based platforms, + * which will have (at least) EV6. + */ + +static inline void +inline_bwx_outb (unsigned char b, unsigned long int port, iosys_t iosys) +{ + unsigned long int addr = port_to_cpu_addr (port, iosys, 4); + + __asm__ __volatile__ ("stb %1,%0" : : "m"(*(unsigned char *)addr), "r"(b)); + mb (); +} + + +static inline void +inline_bwx_outw (unsigned short int b, unsigned long int port, iosys_t iosys) +{ + unsigned long int addr = port_to_cpu_addr (port, iosys, 4); + + __asm__ __volatile__ ("stw %1,%0" : : "m"(*(unsigned short *)addr), "r"(b)); + mb (); +} + + +static inline void +inline_bwx_outl (unsigned int b, unsigned long int port, iosys_t iosys) +{ + unsigned long int addr = port_to_cpu_addr (port, iosys, 4); -#define DCL_SETHAE(name, iosys) \ + *(vuip)addr = b; + mb (); +} + + +static inline unsigned int +inline_bwx_inb (unsigned long int port, iosys_t iosys) +{ + unsigned long int r, addr = port_to_cpu_addr (port, iosys, 1); + + __asm__ __volatile__ ("ldbu %0,%1" : "=r"(r) : "m"(*(unsigned char *)addr)); + return 0xffUL & r; +} + + +static inline unsigned int +inline_bwx_inw (unsigned long int port, iosys_t iosys) +{ + unsigned long int r, addr = port_to_cpu_addr (port, iosys, 1); + + __asm__ __volatile__ ("ldwu %0,%1" : "=r"(r) : "m"(*(unsigned short *)addr)); + return 0xffffUL & r; +} + + +static inline unsigned int +inline_bwx_inl (unsigned long int port, iosys_t iosys) +{ + unsigned long int addr = port_to_cpu_addr (port, iosys, 4); + + return *(vuip) addr; +} + + +#define DCL_SETHAE(name, iosys) \ static void \ name##_sethae (unsigned long int addr) \ { \ @@ -259,6 +361,28 @@ name##_##func (unsigned long int addr) \ return inline_##func (addr, IOSYS_##iosys); \ } +#define DCL_SETHAE_IGNORE(name, iosys) \ +static void \ +name##_sethae (unsigned long int addr) \ +{ \ +/* do nothing */ \ +} + +#define DCL_OUT_BWX(name, func, type, iosys) \ +static void \ +name##_##func (unsigned type b, unsigned long int addr) \ +{ \ + inline_bwx_##func (b, addr, IOSYS_##iosys); \ +} + + +#define DCL_IN_BWX(name, func, iosys) \ +static unsigned int \ +name##_##func (unsigned long int addr) \ +{ \ + return inline_bwx_##func (addr, IOSYS_##iosys); \ +} + DCL_SETHAE(jensen, JENSEN) DCL_OUT(jensen, outb, char, JENSEN) @@ -279,7 +403,15 @@ DCL_IN(apecs, inb, APECS) DCL_IN(apecs, inw, APECS) DCL_IN(apecs, inl, APECS) -struct ioswtch ioswtch[] = { +DCL_SETHAE_IGNORE(tsunami, TSUNAMI) +DCL_OUT_BWX(tsunami, outb, char, TSUNAMI) +DCL_OUT_BWX(tsunami, outw, short int, TSUNAMI) +DCL_OUT_BWX(tsunami, outl, int, TSUNAMI) +DCL_IN_BWX(tsunami, inb, TSUNAMI) +DCL_IN_BWX(tsunami, inw, TSUNAMI) +DCL_IN_BWX(tsunami, inl, TSUNAMI) + +static struct ioswtch ioswtch[] = { { jensen_sethae, jensen_outb, jensen_outw, jensen_outl, @@ -289,6 +421,11 @@ struct ioswtch ioswtch[] = { apecs_sethae, apecs_outb, apecs_outw, apecs_outl, apecs_inb, apecs_inw, apecs_inl + }, + { + tsunami_sethae, + tsunami_outb, tsunami_outw, tsunami_outl, + tsunami_inb, tsunami_inw, tsunami_inl } }; @@ -358,12 +495,54 @@ init_iosys (void) { if (strcmp (platform[i].name, systype) == 0) { - io.hae_shift = platform[i].hae_shift; - io.bus_memory_base = platform[i].bus_memory_base; - io.sparse_bus_memory_base = platform[i].sparse_bus_memory_base; io.sys = platform[i].io_sys; + /* some platforms can have either EV4 or EV5 CPUs */ + if (io.sys == IOSYS_CPUDEP) + { + FILE * fp; + char cputype[256]; + fp = fopen (PATH_CPUINFO, "r"); + if (fp == NULL) + return -1; + while ((n = fscanf (fp, "cpu model : %256[^\n]\n", cputype)) + != EOF + && n != 1) + fgets (cputype, 256, fp); + + fclose (fp); + + if (strcmp (platform[i].name, "Sable") == 0) + { + if (strncmp (cputype, "EV4", 3) == 0) + io.sys = IOSYS_T2; + else if (strncmp (cputype, "EV5", 3) == 0) + io.sys = IOSYS_GAMMA; + } + else + { + if (strncmp (cputype, "EV4", 3) == 0) + io.sys = IOSYS_APECS; + else if (strncmp (cputype, "EV5", 3) == 0) + io.sys = IOSYS_CIA; + } + if (n == EOF || io.sys == IOSYS_CPUDEP) + { + /* This can happen if the format of /proc/cpuinfo changes.*/ + fprintf (stderr, "ioperm.init_iosys(): Unable to determine" + " CPU model.\n"); + __set_errno (ENODEV); + return -1; + } + } + io.hae_shift = io_system[io.sys].hae_shift; + io.bus_memory_base = io_system[io.sys].bus_memory_base; + io.sparse_bus_memory_base = io_system[io.sys].sparse_bus_mem_base; + io.io_base = io_system[io.sys].bus_io_base; + if (io.sys == IOSYS_JENSEN) io.swp = &ioswtch[0]; + else if (io.sys == IOSYS_TSUNAMI) + io.swp = &ioswtch[2]; else io.swp = &ioswtch[1]; return 0; @@ -396,32 +575,22 @@ _ioperm (unsigned long int from, unsigned long int num, int turn_on) { if (!io.base) { - unsigned long int base; int fd; io.hae.reg = 0; /* not used in user-level */ io.hae.cache = 0; - __sethae (io.hae.cache); /* synchronize with hw */ + if (io.sys != IOSYS_TSUNAMI) + __sethae (io.hae.cache); /* synchronize with hw */ fd = open ("/dev/mem", O_RDWR); if (fd < 0) - return fd; + return -1; - switch (io.sys) - { - case IOSYS_UNKNOWN: base = io.io_base; break; - case IOSYS_JENSEN: base = JENSEN_IO_BASE; break; - case IOSYS_APECS: base = APECS_IO_BASE; break; - case IOSYS_CIA: base = CIA_IO_BASE; break; - default: - __set_errno (ENODEV); - return -1; - } - addr = port_to_cpu_addr (0, io.sys, 1); + addr = port_to_cpu_addr (0, io.sys, 1); len = port_to_cpu_addr (MAX_PORT, io.sys, 1) - addr; io.base = (unsigned long int) __mmap (0, len, PROT_NONE, MAP_SHARED, - fd, base); + fd, io.io_base); close (fd); if ((long) io.base == -1) return -1; |