diff options
Diffstat (limited to 'arch/parisc/kernel/firmware.c')
| -rw-r--r-- | arch/parisc/kernel/firmware.c | 192 |
1 files changed, 94 insertions, 98 deletions
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c index 9158b707c0d..22395901d47 100644 --- a/arch/parisc/kernel/firmware.c +++ b/arch/parisc/kernel/firmware.c @@ -67,14 +67,13 @@ #include <asm/page.h> #include <asm/pdc.h> #include <asm/pdcpat.h> -#include <asm/system.h> #include <asm/processor.h> /* for boot_cpu_data */ static DEFINE_SPINLOCK(pdc_lock); -static unsigned long pdc_result[32] __attribute__ ((aligned (8))); -static unsigned long pdc_result2[32] __attribute__ ((aligned (8))); +extern unsigned long pdc_result[NUM_PDC_RESULT]; +extern unsigned long pdc_result2[NUM_PDC_RESULT]; -#ifdef __LP64__ +#ifdef CONFIG_64BIT #define WIDE_FIRMWARE 0x1 #define NARROW_FIRMWARE 0x2 @@ -94,12 +93,12 @@ int parisc_narrow_firmware __read_mostly = 1; * when running a 64-bit kernel on such boxes (e.g. C200 or C360). */ -#ifdef __LP64__ +#ifdef CONFIG_64BIT long real64_call(unsigned long function, ...); #endif long real32_call(unsigned long function, ...); -#ifdef __LP64__ +#ifdef CONFIG_64BIT # define MEM_PDC (unsigned long)(PAGE0->mem_pdc_hi) << 32 | PAGE0->mem_pdc # define mem_pdc_call(args...) unlikely(parisc_narrow_firmware) ? real32_call(MEM_PDC, args) : real64_call(MEM_PDC, args) #else @@ -117,7 +116,7 @@ long real32_call(unsigned long function, ...); */ static unsigned long f_extend(unsigned long address) { -#ifdef __LP64__ +#ifdef CONFIG_64BIT if(unlikely(parisc_narrow_firmware)) { if((address & 0xff000000) == 0xf0000000) return 0xf0f0f0f000000000UL | (u32)address; @@ -139,7 +138,7 @@ static unsigned long f_extend(unsigned long address) */ static void convert_to_wide(unsigned long *addr) { -#ifdef __LP64__ +#ifdef CONFIG_64BIT int i; unsigned int *p = (unsigned int *)addr; @@ -150,26 +149,42 @@ static void convert_to_wide(unsigned long *addr) #endif } +#ifdef CONFIG_64BIT +void set_firmware_width_unlocked(void) +{ + int ret; + + ret = mem_pdc_call(PDC_MODEL, PDC_MODEL_CAPABILITIES, + __pa(pdc_result), 0); + convert_to_wide(pdc_result); + if (pdc_result[0] != NARROW_FIRMWARE) + parisc_narrow_firmware = 0; +} + /** * set_firmware_width - Determine if the firmware is wide or narrow. * - * This function must be called before any pdc_* function that uses the convert_to_wide - * function. + * This function must be called before any pdc_* function that uses the + * convert_to_wide function. */ -void __init set_firmware_width(void) +void set_firmware_width(void) { -#ifdef __LP64__ - int retval; unsigned long flags; + spin_lock_irqsave(&pdc_lock, flags); + set_firmware_width_unlocked(); + spin_unlock_irqrestore(&pdc_lock, flags); +} +#else +void set_firmware_width_unlocked(void) +{ + return; +} - spin_lock_irqsave(&pdc_lock, flags); - retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_CAPABILITIES, __pa(pdc_result), 0); - convert_to_wide(pdc_result); - if(pdc_result[0] != NARROW_FIRMWARE) - parisc_narrow_firmware = 0; - spin_unlock_irqrestore(&pdc_lock, flags); -#endif +void set_firmware_width(void) +{ + return; } +#endif /*CONFIG_64BIT*/ /** * pdc_emergency_unlock - Unlock the linux pdc lock @@ -238,7 +253,7 @@ int __init pdc_chassis_info(struct pdc_chassis_info *chassis_info, void *led_inf * * Must be correctly formatted or expect system crash */ -#ifdef __LP64__ +#ifdef CONFIG_64BIT int pdc_pat_chassis_send_log(unsigned long state, unsigned long data) { int retval = 0; @@ -288,6 +303,20 @@ int pdc_chassis_warn(unsigned long *warn) return retval; } +int pdc_coproc_cfg_unlocked(struct pdc_coproc_cfg *pdc_coproc_info) +{ + int ret; + + ret = mem_pdc_call(PDC_COPROC, PDC_COPROC_CFG, __pa(pdc_result)); + convert_to_wide(pdc_result); + pdc_coproc_info->ccr_functional = pdc_result[0]; + pdc_coproc_info->ccr_present = pdc_result[1]; + pdc_coproc_info->revision = pdc_result[17]; + pdc_coproc_info->model = pdc_result[18]; + + return ret; +} + /** * pdc_coproc_cfg - To identify coprocessors attached to the processor. * @pdc_coproc_info: Return buffer address. @@ -295,21 +324,16 @@ int pdc_chassis_warn(unsigned long *warn) * This PDC call returns the presence and status of all the coprocessors * attached to the processor. */ -int __init pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info) +int pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info) { - int retval; + int ret; unsigned long flags; - spin_lock_irqsave(&pdc_lock, flags); - retval = mem_pdc_call(PDC_COPROC, PDC_COPROC_CFG, __pa(pdc_result)); - convert_to_wide(pdc_result); - pdc_coproc_info->ccr_functional = pdc_result[0]; - pdc_coproc_info->ccr_present = pdc_result[1]; - pdc_coproc_info->revision = pdc_result[17]; - pdc_coproc_info->model = pdc_result[18]; - spin_unlock_irqrestore(&pdc_lock, flags); + spin_lock_irqsave(&pdc_lock, flags); + ret = pdc_coproc_cfg_unlocked(pdc_coproc_info); + spin_unlock_irqrestore(&pdc_lock, flags); - return retval; + return ret; } /** @@ -504,7 +528,11 @@ int pdc_model_capabilities(unsigned long *capabilities) pdc_result[0] = 0; /* preset zero (call may not be implemented!) */ retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_CAPABILITIES, __pa(pdc_result), 0); convert_to_wide(pdc_result); - *capabilities = pdc_result[0]; + if (retval == PDC_OK) { + *capabilities = pdc_result[0]; + } else { + *capabilities = PDC_MODEL_OS32; + } spin_unlock_irqrestore(&pdc_lock, flags); return retval; @@ -634,7 +662,7 @@ EXPORT_SYMBOL(pdc_lan_station_id); * pdc_stable_read - Read data from Stable Storage. * @staddr: Stable Storage address to access. * @memaddr: The memory address where Stable Storage data shall be copied. - * @count: number of bytes to transfert. count is multiple of 4. + * @count: number of bytes to transfer. count is multiple of 4. * * This PDC call reads from the Stable Storage address supplied in staddr * and copies count bytes to the memory address memaddr. @@ -660,7 +688,7 @@ EXPORT_SYMBOL(pdc_stable_read); * pdc_stable_write - Write data to Stable Storage. * @staddr: Stable Storage address to access. * @memaddr: The memory address where Stable Storage data shall be read from. - * @count: number of bytes to transfert. count is multiple of 4. + * @count: number of bytes to transfer. count is multiple of 4. * * This PDC call reads count bytes from the supplied memaddr address, * and copies count bytes to the Stable Storage address staddr. @@ -949,7 +977,7 @@ int pdc_tod_set(unsigned long sec, unsigned long usec) } EXPORT_SYMBOL(pdc_tod_set); -#ifdef __LP64__ +#ifdef CONFIG_64BIT int pdc_mem_mem_table(struct pdc_memory_table_raddr *r_addr, struct pdc_memory_table *tbl, unsigned long entries) { @@ -965,7 +993,7 @@ int pdc_mem_mem_table(struct pdc_memory_table_raddr *r_addr, return retval; } -#endif /* __LP64__ */ +#endif /* CONFIG_64BIT */ /* FIXME: Is this pdc used? I could not find type reference to ftc_bitmap * so I guessed at unsigned long. Someone who knows what this does, can fix @@ -1080,78 +1108,48 @@ void pdc_io_reset_devices(void) spin_unlock_irqrestore(&pdc_lock, flags); } +/* locked by pdc_console_lock */ +static int __attribute__((aligned(8))) iodc_retbuf[32]; +static char __attribute__((aligned(64))) iodc_dbuf[4096]; /** - * pdc_iodc_putc - Console character print using IODC. - * @c: the character to output. + * pdc_iodc_print - Console print using IODC. + * @str: the string to output. + * @count: length of str * * Note that only these special chars are architected for console IODC io: * BEL, BS, CR, and LF. Others are passed through. * Since the HP console requires CR+LF to perform a 'newline', we translate * "\n" to "\r\n". */ -void pdc_iodc_putc(unsigned char c) +int pdc_iodc_print(const unsigned char *str, unsigned count) { - /* XXX Should we spinlock posx usage */ - static int posx; /* for simple TAB-Simulation... */ - static int __attribute__((aligned(8))) iodc_retbuf[32]; - static char __attribute__((aligned(64))) iodc_dbuf[4096]; - unsigned int n; + unsigned int i; unsigned long flags; - switch (c) { - case '\n': - iodc_dbuf[0] = '\r'; - iodc_dbuf[1] = '\n'; - n = 2; - posx = 0; - break; - case '\t': - pdc_iodc_putc(' '); - while (posx & 7) /* expand TAB */ - pdc_iodc_putc(' '); - return; /* return since IODC can't handle this */ - case '\b': - posx-=2; /* BS */ - default: - iodc_dbuf[0] = c; - n = 1; - posx++; - break; - } + for (i = 0; i < count;) { + switch(str[i]) { + case '\n': + iodc_dbuf[i+0] = '\r'; + iodc_dbuf[i+1] = '\n'; + i += 2; + goto print; + default: + iodc_dbuf[i] = str[i]; + i++; + break; + } + } +print: spin_lock_irqsave(&pdc_lock, flags); real32_call(PAGE0->mem_cons.iodc_io, (unsigned long)PAGE0->mem_cons.hpa, ENTRY_IO_COUT, PAGE0->mem_cons.spa, __pa(PAGE0->mem_cons.dp.layers), - __pa(iodc_retbuf), 0, __pa(iodc_dbuf), n, 0); + __pa(iodc_retbuf), 0, __pa(iodc_dbuf), i, 0); spin_unlock_irqrestore(&pdc_lock, flags); -} -/** - * pdc_iodc_outc - Console character print using IODC (without conversions). - * @c: the character to output. - * - * Write the character directly to the IODC console. - */ -void pdc_iodc_outc(unsigned char c) -{ - unsigned int n; - unsigned long flags; - - /* fill buffer with one caracter and print it */ - static int __attribute__((aligned(8))) iodc_retbuf[32]; - static char __attribute__((aligned(64))) iodc_dbuf[4096]; - - n = 1; - iodc_dbuf[0] = c; - - spin_lock_irqsave(&pdc_lock, flags); - real32_call(PAGE0->mem_cons.iodc_io, - (unsigned long)PAGE0->mem_cons.hpa, ENTRY_IO_COUT, - PAGE0->mem_cons.spa, __pa(PAGE0->mem_cons.dp.layers), - __pa(iodc_retbuf), 0, __pa(iodc_dbuf), n, 0); - spin_unlock_irqrestore(&pdc_lock, flags); + return i; } /** @@ -1162,11 +1160,9 @@ void pdc_iodc_outc(unsigned char c) */ int pdc_iodc_getc(void) { - unsigned long flags; - static int __attribute__((aligned(8))) iodc_retbuf[32]; - static char __attribute__((aligned(64))) iodc_dbuf[4096]; int ch; int status; + unsigned long flags; /* Bail if no console input device. */ if (!PAGE0->mem_kbd.iodc_io) @@ -1204,7 +1200,7 @@ int pdc_sti_call(unsigned long func, unsigned long flags, } EXPORT_SYMBOL(pdc_sti_call); -#ifdef __LP64__ +#ifdef CONFIG_64BIT /** * pdc_pat_cell_get_number - Returns the cell number. * @cell_info: The return buffer. @@ -1387,7 +1383,7 @@ int pdc_pat_io_pci_cfg_write(unsigned long pci_addr, int pci_size, u32 val) return retval; } -#endif /* __LP64__ */ +#endif /* CONFIG_64BIT */ /***************** 32-bit real-mode calls ***********/ @@ -1445,7 +1441,7 @@ long real32_call(unsigned long fn, ...) return real32_call_asm(&real_stack.sp, &real_stack.arg0, fn); } -#ifdef __LP64__ +#ifdef CONFIG_64BIT /***************** 64-bit real-mode calls ***********/ struct wide_stack { @@ -1496,5 +1492,5 @@ long real64_call(unsigned long fn, ...) return real64_call_asm(&real64_stack.sp, &real64_stack.arg0, fn); } -#endif /* __LP64__ */ +#endif /* CONFIG_64BIT */ |