diff options
author | Linus Torvalds <torvalds@g5.osdl.org> | 2005-08-03 13:09:43 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-08-03 13:09:43 -0700 |
commit | 194d0710e1a7fe92dcf860ddd31fded8c3103b7a (patch) | |
tree | da03b56fa4dee221c53af5770492d391f0d09459 | |
parent | a68d2ebc1581a3aec57bd032651e013fa609f530 (diff) | |
parent | 9bbd03758945858c9303f3258b418b94c4ffd735 (diff) |
Merge master.kernel.org:/home/rmk/linux-2.6-arm
-rw-r--r-- | Documentation/dontdiff | 1 | ||||
-rw-r--r-- | arch/arm/mach-ixp4xx/coyote-setup.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-ixp4xx/gtwx5715-setup.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-ixp4xx/ixdp425-setup.c | 4 | ||||
-rw-r--r-- | arch/arm/mach-s3c2410/mach-bast.c | 16 | ||||
-rw-r--r-- | arch/arm/mm/proc-xscale.S | 136 | ||||
-rw-r--r-- | arch/arm/nwfpe/double_cpdo.c | 24 | ||||
-rw-r--r-- | arch/arm/nwfpe/extended_cpdo.c | 24 | ||||
-rw-r--r-- | arch/arm/nwfpe/fpa11.c | 30 | ||||
-rw-r--r-- | arch/arm/nwfpe/fpa11.h | 11 | ||||
-rw-r--r-- | arch/arm/nwfpe/fpa11_cpdo.c | 28 | ||||
-rw-r--r-- | arch/arm/nwfpe/fpa11_cpdt.c | 22 | ||||
-rw-r--r-- | arch/arm/nwfpe/fpa11_cprt.c | 28 | ||||
-rw-r--r-- | arch/arm/nwfpe/fpmodule.c | 15 | ||||
-rw-r--r-- | arch/arm/nwfpe/single_cpdo.c | 24 | ||||
-rw-r--r-- | arch/arm/nwfpe/softfloat.c | 334 | ||||
-rw-r--r-- | arch/arm/nwfpe/softfloat.h | 68 | ||||
-rw-r--r-- | arch/arm/vfp/vfpdouble.c | 3 | ||||
-rw-r--r-- | drivers/char/watchdog/sa1100_wdt.c | 49 |
19 files changed, 337 insertions, 484 deletions
diff --git a/Documentation/dontdiff b/Documentation/dontdiff index b974cf595d0..96bea278bbf 100644 --- a/Documentation/dontdiff +++ b/Documentation/dontdiff @@ -104,6 +104,7 @@ logo_*.c logo_*_clut224.c logo_*_mono.c lxdialog +mach-types mach-types.h make_times_h map diff --git a/arch/arm/mach-ixp4xx/coyote-setup.c b/arch/arm/mach-ixp4xx/coyote-setup.c index 4ff4393ef0e..7f58afb27e7 100644 --- a/arch/arm/mach-ixp4xx/coyote-setup.c +++ b/arch/arm/mach-ixp4xx/coyote-setup.c @@ -61,7 +61,7 @@ static struct plat_serial8250_port coyote_uart_data[] = { .mapbase = IXP4XX_UART2_BASE_PHYS, .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET, .irq = IRQ_IXP4XX_UART2, - .flags = UPF_BOOT_AUTOCONF, + .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, .iotype = UPIO_MEM, .regshift = 2, .uartclk = IXP4XX_UART_XTAL, diff --git a/arch/arm/mach-ixp4xx/gtwx5715-setup.c b/arch/arm/mach-ixp4xx/gtwx5715-setup.c index 8ba1cd9406e..65e356bd10d 100644 --- a/arch/arm/mach-ixp4xx/gtwx5715-setup.c +++ b/arch/arm/mach-ixp4xx/gtwx5715-setup.c @@ -83,7 +83,7 @@ static struct plat_serial8250_port gtwx5715_uart_platform_data[] = { .mapbase = IXP4XX_UART2_BASE_PHYS, .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET, .irq = IRQ_IXP4XX_UART2, - .flags = UPF_BOOT_AUTOCONF, + .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, .iotype = UPIO_MEM, .regshift = 2, .uartclk = IXP4XX_UART_XTAL, diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c index c2ba759e994..4633470a6a3 100644 --- a/arch/arm/mach-ixp4xx/ixdp425-setup.c +++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c @@ -82,7 +82,7 @@ static struct plat_serial8250_port ixdp425_uart_data[] = { .mapbase = IXP4XX_UART1_BASE_PHYS, .membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET, .irq = IRQ_IXP4XX_UART1, - .flags = UPF_BOOT_AUTOCONF, + .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, .iotype = UPIO_MEM, .regshift = 2, .uartclk = IXP4XX_UART_XTAL, @@ -91,7 +91,7 @@ static struct plat_serial8250_port ixdp425_uart_data[] = { .mapbase = IXP4XX_UART2_BASE_PHYS, .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET, .irq = IRQ_IXP4XX_UART1, - .flags = UPF_BOOT_AUTOCONF, + .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, .iotype = UPIO_MEM, .regshift = 2, .uartclk = IXP4XX_UART_XTAL, diff --git a/arch/arm/mach-s3c2410/mach-bast.c b/arch/arm/mach-s3c2410/mach-bast.c index 1e7f343822d..e9182242da9 100644 --- a/arch/arm/mach-s3c2410/mach-bast.c +++ b/arch/arm/mach-s3c2410/mach-bast.c @@ -30,6 +30,7 @@ * 28-Jun-2005 BJD Moved pm functionality out to common code * 17-Jul-2005 BJD Changed to platform device for SuperIO 16550s * 25-Jul-2005 BJD Removed ASIX static mappings + * 27-Jul-2005 BJD Ensure maximum frequency of i2c bus */ #include <linux/kernel.h> @@ -60,6 +61,7 @@ #include <asm/arch/regs-mem.h> #include <asm/arch/regs-lcd.h> #include <asm/arch/nand.h> +#include <asm/arch/iic.h> #include <linux/mtd/mtd.h> #include <linux/mtd/nand.h> @@ -304,7 +306,7 @@ static void bast_nand_select(struct s3c2410_nand_set *set, int slot) } static struct s3c2410_platform_nand bast_nand_info = { - .tacls = 80, + .tacls = 40, .twrph0 = 80, .twrph1 = 80, .nr_sets = ARRAY_SIZE(bast_nand_sets), @@ -385,6 +387,17 @@ static struct platform_device bast_sio = { }, }; +/* we have devices on the bus which cannot work much over the + * standard 100KHz i2c bus frequency +*/ + +static struct s3c2410_platform_i2c bast_i2c_info = { + .flags = 0, + .slave_addr = 0x10, + .bus_freq = 100*1000, + .max_freq = 130*1000, +}; + /* Standard BAST devices */ static struct platform_device *bast_devices[] __initdata = { @@ -431,6 +444,7 @@ void __init bast_map_io(void) s3c24xx_uclk.parent = &s3c24xx_clkout1; s3c_device_nand.dev.platform_data = &bast_nand_info; + s3c_device_i2c.dev.platform_data = &bast_i2c_info; s3c24xx_init_io(bast_iodesc, ARRAY_SIZE(bast_iodesc)); s3c24xx_init_clocks(0); diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S index 2d977b4eeea..b88de270014 100644 --- a/arch/arm/mm/proc-xscale.S +++ b/arch/arm/mm/proc-xscale.S @@ -370,142 +370,6 @@ ENTRY(cpu_xscale_dcache_clean_area) bhi 1b mov pc, lr -/* ================================ CACHE LOCKING============================ - * - * The XScale MicroArchitecture implements support for locking entries into - * the data and instruction cache. The following functions implement the core - * low level instructions needed to accomplish the locking. The developer's - * manual states that the code that performs the locking must be in non-cached - * memory. To accomplish this, the code in xscale-cache-lock.c copies the - * following functions from the cache into a non-cached memory region that - * is allocated through consistent_alloc(). - * - */ - .align 5 -/* - * xscale_icache_lock - * - * r0: starting address to lock - * r1: end address to lock - */ -ENTRY(xscale_icache_lock) - -iLockLoop: - bic r0, r0, #CACHELINESIZE - 1 - mcr p15, 0, r0, c9, c1, 0 @ lock into cache - cmp r0, r1 @ are we done? - add r0, r0, #CACHELINESIZE @ advance to next cache line - bls iLockLoop - mov pc, lr - -/* - * xscale_icache_unlock - */ -ENTRY(xscale_icache_unlock) - mcr p15, 0, r0, c9, c1, 1 @ Unlock icache - mov pc, lr - -/* - * xscale_dcache_lock - * - * r0: starting address to lock - * r1: end address to lock - */ -ENTRY(xscale_dcache_lock) - mcr p15, 0, ip, c7, c10, 4 @ Drain Write (& Fill) Buffer - mov r2, #1 - mcr p15, 0, r2, c9, c2, 0 @ Put dcache in lock mode - cpwait ip @ Wait for completion - - mrs r2, cpsr - orr r3, r2, #PSR_F_BIT | PSR_I_BIT -dLockLoop: - msr cpsr_c, r3 - mcr p15, 0, r0, c7, c10, 1 @ Write back line if it is dirty - mcr p15, 0, r0, c7, c6, 1 @ Flush/invalidate line - msr cpsr_c, r2 - ldr ip, [r0], #CACHELINESIZE @ Preload 32 bytes into cache from - @ location [r0]. Post-increment - @ r3 to next cache line - cmp r0, r1 @ Are we done? - bls dLockLoop - - mcr p15, 0, ip, c7, c10, 4 @ Drain Write (& Fill) Buffer - mov r2, #0 - mcr p15, 0, r2, c9, c2, 0 @ Get out of lock mode - cpwait_ret lr, ip - -/* - * xscale_dcache_unlock - */ -ENTRY(xscale_dcache_unlock) - mcr p15, 0, ip, c7, c10, 4 @ Drain Write (& Fill) Buffer - mcr p15, 0, ip, c9, c2, 1 @ Unlock cache - mov pc, lr - -/* - * Needed to determine the length of the code that needs to be copied. - */ - .align 5 -ENTRY(xscale_cache_dummy) - mov pc, lr - -/* ================================ TLB LOCKING============================== - * - * The XScale MicroArchitecture implements support for locking entries into - * the Instruction and Data TLBs. The following functions provide the - * low level support for supporting these under Linux. xscale-lock.c - * implements some higher level management code. Most of the following - * is taken straight out of the Developer's Manual. - */ - -/* - * Lock I-TLB entry - * - * r0: Virtual address to translate and lock - */ - .align 5 -ENTRY(xscale_itlb_lock) - mrs r2, cpsr - orr r3, r2, #PSR_F_BIT | PSR_I_BIT - msr cpsr_c, r3 @ Disable interrupts - mcr p15, 0, r0, c8, c5, 1 @ Invalidate I-TLB entry - mcr p15, 0, r0, c10, c4, 0 @ Translate and lock - msr cpsr_c, r2 @ Restore interrupts - cpwait_ret lr, ip - -/* - * Lock D-TLB entry - * - * r0: Virtual address to translate and lock - */ - .align 5 -ENTRY(xscale_dtlb_lock) - mrs r2, cpsr - orr r3, r2, #PSR_F_BIT | PSR_I_BIT - msr cpsr_c, r3 @ Disable interrupts - mcr p15, 0, r0, c8, c6, 1 @ Invalidate D-TLB entry - mcr p15, 0, r0, c10, c8, 0 @ Translate and lock - msr cpsr_c, r2 @ Restore interrupts - cpwait_ret lr, ip - -/* - * Unlock all I-TLB entries - */ - .align 5 -ENTRY(xscale_itlb_unlock) - mcr p15, 0, ip, c10, c4, 1 @ Unlock I-TLB - mcr p15, 0, ip, c8, c5, 0 @ Invalidate I-TLB - cpwait_ret lr, ip - -/* - * Unlock all D-TLB entries - */ -ENTRY(xscale_dtlb_unlock) - mcr p15, 0, ip, c10, c8, 1 @ Unlock D-TBL - mcr p15, 0, ip, c8, c6, 0 @ Invalidate D-TLB - cpwait_ret lr, ip - /* =============================== PageTable ============================== */ #define PTE_CACHE_WRITE_ALLOCATE 0 diff --git a/arch/arm/nwfpe/double_cpdo.c b/arch/arm/nwfpe/double_cpdo.c index 7ffd8cb9bc9..c51d1386a97 100644 --- a/arch/arm/nwfpe/double_cpdo.c +++ b/arch/arm/nwfpe/double_cpdo.c @@ -40,17 +40,17 @@ float64 float64_arccos(float64 rFm); float64 float64_pow(float64 rFn, float64 rFm); float64 float64_pol(float64 rFn, float64 rFm); -static float64 float64_rsf(float64 rFn, float64 rFm) +static float64 float64_rsf(struct roundingData *roundData, float64 rFn, float64 rFm) { - return float64_sub(rFm, rFn); + return float64_sub(roundData, rFm, rFn); } -static float64 float64_rdv(float64 rFn, float64 rFm) +static float64 float64_rdv(struct roundingData *roundData, float64 rFn, float64 rFm) { - return float64_div(rFm, rFn); + return float64_div(roundData, rFm, rFn); } -static float64 (*const dyadic_double[16])(float64 rFn, float64 rFm) = { +static float64 (*const dyadic_double[16])(struct roundingData*, float64 rFn, float64 rFm) = { [ADF_CODE >> 20] = float64_add, [MUF_CODE >> 20] = float64_mul, [SUF_CODE >> 20] = float64_sub, @@ -65,12 +65,12 @@ static float64 (*const dyadic_double[16])(float64 rFn, float64 rFm) = { [FRD_CODE >> 20] = float64_rdv, }; -static float64 float64_mvf(float64 rFm) +static float64 float64_mvf(struct roundingData *roundData,float64 rFm) { return rFm; } -static float64 float64_mnf(float64 rFm) +static float64 float64_mnf(struct roundingData *roundData,float64 rFm) { union float64_components u; @@ -84,7 +84,7 @@ static float64 float64_mnf(float64 rFm) return u.f64; } -static float64 float64_abs(float64 rFm) +static float64 float64_abs(struct roundingData *roundData,float64 rFm) { union float64_components u; @@ -98,7 +98,7 @@ static float64 float64_abs(float64 rFm) return u.f64; } -static float64 (*const monadic_double[16])(float64 rFm) = { +static float64 (*const monadic_double[16])(struct roundingData *, float64 rFm) = { [MVF_CODE >> 20] = float64_mvf, [MNF_CODE >> 20] = float64_mnf, [ABS_CODE >> 20] = float64_abs, @@ -108,7 +108,7 @@ static float64 (*const monadic_double[16])(float64 rFm) = { [NRM_CODE >> 20] = float64_mvf, }; -unsigned int DoubleCPDO(const unsigned int opcode, FPREG * rFd) +unsigned int DoubleCPDO(struct roundingData *roundData, const unsigned int opcode, FPREG * rFd) { FPA11 *fpa11 = GET_FPA11(); float64 rFm; @@ -151,13 +151,13 @@ unsigned int DoubleCPDO(const unsigned int opcode, FPREG * rFd) } if (dyadic_double[opc_mask_shift]) { - rFd->fDouble = dyadic_double[opc_mask_shift](rFn, rFm); + rFd->fDouble = dyadic_double[opc_mask_shift](roundData, rFn, rFm); } else { return 0; } } else { if (monadic_double[opc_mask_shift]) { - rFd->fDouble = monadic_double[opc_mask_shift](rFm); + rFd->fDouble = monadic_double[opc_mask_shift](roundData, rFm); } else { return 0; } diff --git a/arch/arm/nwfpe/extended_cpdo.c b/arch/arm/nwfpe/extended_cpdo.c index c39f68a3449..65a279ba927 100644 --- a/arch/arm/nwfpe/extended_cpdo.c +++ b/arch/arm/nwfpe/extended_cpdo.c @@ -35,17 +35,17 @@ floatx80 floatx80_arccos(floatx80 rFm); floatx80 floatx80_pow(floatx80 rFn, floatx80 rFm); floatx80 floatx80_pol(floatx80 rFn, floatx80 rFm); -static floatx80 floatx80_rsf(floatx80 rFn, floatx80 rFm) +static floatx80 floatx80_rsf(struct roundingData *roundData, floatx80 rFn, floatx80 rFm) { - return floatx80_sub(rFm, rFn); + return floatx80_sub(roundData, rFm, rFn); } -static floatx80 floatx80_rdv(floatx80 rFn, floatx80 rFm) +static floatx80 floatx80_rdv(struct roundingData *roundData, floatx80 rFn, floatx80 rFm) { - return floatx80_div(rFm, rFn); + return floatx80_div(roundData, rFm, rFn); } -static floatx80 (*const dyadic_extended[16])(floatx80 rFn, floatx80 rFm) = { +static floatx80 (*const dyadic_extended[16])(struct roundingData*, floatx80 rFn, floatx80 rFm) = { [ADF_CODE >> 20] = floatx80_add, [MUF_CODE >> 20] = floatx80_mul, [SUF_CODE >> 20] = floatx80_sub, @@ -60,24 +60,24 @@ static floatx80 (*const dyadic_extended[16])(floatx80 rFn, floatx80 rFm) = { [FRD_CODE >> 20] = floatx80_rdv, }; -static floatx80 floatx80_mvf(floatx80 rFm) +static floatx80 floatx80_mvf(struct roundingData *roundData, floatx80 rFm) { return rFm; } -static floatx80 floatx80_mnf(floatx80 rFm) +static floatx80 floatx80_mnf(struct roundingData *roundData, floatx80 rFm) { rFm.high ^= 0x8000; return rFm; } -static floatx80 floatx80_abs(floatx80 rFm) +static floatx80 floatx80_abs(struct roundingData *roundData, floatx80 rFm) { rFm.high &= 0x7fff; return rFm; } -static floatx80 (*const monadic_extended[16])(floatx80 rFm) = { +static floatx80 (*const monadic_extended[16])(struct roundingData*, floatx80 rFm) = { [MVF_CODE >> 20] = floatx80_mvf, [MNF_CODE >> 20] = floatx80_mnf, [ABS_CODE >> 20] = floatx80_abs, @@ -87,7 +87,7 @@ static floatx80 (*const monadic_extended[16])(floatx80 rFm) = { [NRM_CODE >> 20] = floatx80_mvf, }; -unsigned int ExtendedCPDO(const unsigned int opcode, FPREG * rFd) +unsigned int ExtendedCPDO(struct roundingData *roundData, const unsigned int opcode, FPREG * rFd) { FPA11 *fpa11 = GET_FPA11(); floatx80 rFm; @@ -138,13 +138,13 @@ unsigned int ExtendedCPDO(const unsigned int opcode, FPREG * rFd) } if (dyadic_extended[opc_mask_shift]) { - rFd->fExtended = dyadic_extended[opc_mask_shift](rFn, rFm); + rFd->fExtended = dyadic_extended[opc_mask_shift](roundData, rFn, rFm); } else { return 0; } } else { if (monadic_extended[opc_mask_shift]) { - rFd->fExtended = monadic_extended[opc_mask_shift](rFm); + rFd->fExtended = monadic_extended[opc_mask_shift](roundData, rFm); } else { return 0; } diff --git a/arch/arm/nwfpe/fpa11.c b/arch/arm/nwfpe/fpa11.c index bf61696865e..7690f731ee8 100644 --- a/arch/arm/nwfpe/fpa11.c +++ b/arch/arm/nwfpe/fpa11.c @@ -51,48 +51,42 @@ static void resetFPA11(void) fpa11->fpsr = FP_EMULATOR | BIT_AC; } -void SetRoundingMode(const unsigned int opcode) +int8 SetRoundingMode(const unsigned int opcode) { switch (opcode & MASK_ROUNDING_MODE) { default: case ROUND_TO_NEAREST: - float_rounding_mode = float_round_nearest_even; - break; + return float_round_nearest_even; case ROUND_TO_PLUS_INFINITY: - float_rounding_mode = float_round_up; - break; + return float_round_up; case ROUND_TO_MINUS_INFINITY: - float_rounding_mode = float_round_down; - break; + return float_round_down; case ROUND_TO_ZERO: - float_rounding_mode = float_round_to_zero; - break; + return float_round_to_zero; } } -void SetRoundingPrecision(const unsigned int opcode) +int8 SetRoundingPrecision(const unsigned int opcode) { #ifdef CONFIG_FPE_NWFPE_XP switch (opcode & MASK_ROUNDING_PRECISION) { case ROUND_SINGLE: - floatx80_rounding_precision = 32; - break; + return 32; case ROUND_DOUBLE: - floatx80_rounding_precision = 64; - break; + return 64; case ROUND_EXTENDED: - floatx80_rounding_precision = 80; - break; + return 80; default: - floatx80_rounding_precision = 80; + return 80; } #endif + return 80; } void nwfpe_init_fpa(union fp_state *fp) @@ -103,8 +97,6 @@ void nwfpe_init_fpa(union fp_state *fp) #endif memset(fpa11, 0, sizeof(FPA11)); resetFPA11(); - SetRoundingMode(ROUND_TO_NEAREST); - SetRoundingPrecision(ROUND_EXTENDED); fpa11->initflag = 1; } diff --git a/arch/arm/nwfpe/fpa11.h b/arch/arm/nwfpe/fpa11.h index e4a61aea534..93523ae4b7a 100644 --- a/arch/arm/nwfpe/fpa11.h +++ b/arch/arm/nwfpe/fpa11.h @@ -37,6 +37,13 @@ /* includes */ #include "fpsr.h" /* FP control and status register definitions */ #include "milieu.h" + +struct roundingData { + int8 mode; + int8 precision; + signed char exception; +}; + #include "softfloat.h" #define typeNone 0x00 @@ -84,8 +91,8 @@ typedef struct tagFPA11 { initialised. */ } FPA11; -extern void SetRoundingMode(const unsigned int); -extern void SetRoundingPrecision(const unsigned int); +extern int8 SetRoundingMode(const unsigned int); +extern int8 SetRoundingPrecision(const unsigned int); extern void nwfpe_init_fpa(union fp_state *fp); #endif diff --git a/arch/arm/nwfpe/fpa11_cpdo.c b/arch/arm/nwfpe/fpa11_cpdo.c index 1bea67437b6..4a31dfd9406 100644 --- a/arch/arm/nwfpe/fpa11_cpdo.c +++ b/arch/arm/nwfpe/fpa11_cpdo.c @@ -24,15 +24,16 @@ #include "fpa11.h" #include "fpopcode.h" -unsigned int SingleCPDO(const unsigned int opcode, FPREG * rFd); -unsigned int DoubleCPDO(const unsigned int opcode, FPREG * rFd); -unsigned int ExtendedCPDO(const unsigned int opcode, FPREG * rFd); +unsigned int SingleCPDO(struct roundingData *roundData, const unsigned int opcode, FPREG * rFd); +unsigned int DoubleCPDO(struct roundingData *roundData, const unsigned int opcode, FPREG * rFd); +unsigned int ExtendedCPDO(struct roundingData *roundData, const unsigned int opcode, FPREG * rFd); unsigned int EmulateCPDO(const unsigned int opcode) { FPA11 *fpa11 = GET_FPA11(); FPREG *rFd; unsigned int nType, nDest, nRc; + struct roundingData roundData; /* Get the destination size. If not valid let Linux perform an invalid instruction trap. */ @@ -40,7 +41,9 @@ unsigned int EmulateCPDO(const unsigned int opcode) if (typeNone == nDest) return 0; - SetRoundingMode(opcode); + roundData.mode = SetRoundingMode(opcode); + roundData.precision = SetRoundingPrecision(opcode); + roundData.exception = 0; /* Compare the size of the operands in Fn and Fm. Choose the largest size and perform operations in that size, @@ -63,14 +66,14 @@ unsigned int EmulateCPDO(const unsigned int opcode) switch (nType) { case typeSingle: - nRc = SingleCPDO(opcode, rFd); + nRc = SingleCPDO(&roundData, opcode, rFd); break; case typeDouble: - nRc = DoubleCPDO(opcode, rFd); + nRc = DoubleCPDO(&roundData, opcode, rFd); break; #ifdef CONFIG_FPE_NWFPE_XP case typeExtended: - nRc = ExtendedCPDO(opcode, rFd); + nRc = ExtendedCPDO(&roundData, opcode, rFd); break; #endif default: @@ -93,9 +96,9 @@ unsigned int EmulateCPDO(const unsigned int opcode) case typeSingle: { if (typeDouble == nType) - rFd->fSingle = float64_to_float32(rFd->fDouble); + rFd->fSingle = float64_to_float32(&roundData, rFd->fDouble); else - rFd->fSingle = floatx80_to_float32(rFd->fExtended); + rFd->fSingle = floatx80_to_float32(&roundData, rFd->fExtended); } break; @@ -104,7 +107,7 @@ unsigned int EmulateCPDO(const unsigned int opcode) if (typeSingle == nType) rFd->fDouble = float32_to_float64(rFd->fSingle); else - rFd->fDouble = floatx80_to_float64(rFd->fExtended); + rFd->fDouble = floatx80_to_float64(&roundData, rFd->fExtended); } break; @@ -121,12 +124,15 @@ unsigned int EmulateCPDO(const unsigned int opcode) #else if (nDest != nType) { if (nDest == typeSingle) - rFd->fSingle = float64_to_float32(rFd->fDouble); + rFd->fSingle = float64_to_float32(&roundData, rFd->fDouble); else rFd->fDouble = float32_to_float64(rFd->fSingle); } #endif } + if (roundData.exception) + float_raise(roundData.exception); + return nRc; } diff --git a/arch/arm/nwfpe/fpa11_cpdt.c b/arch/arm/nwfpe/fpa11_cpdt.c index 95fb63fa9d1..b0db5cbcc3b 100644 --- a/arch/arm/nwfpe/fpa11_cpdt.c +++ b/arch/arm/nwfpe/fpa11_cpdt.c @@ -96,7 +96,7 @@ static inline void loadMultiple(const unsigned int Fn, const unsigned int __user } } -static inline void storeSingle(const unsigned int Fn, unsigned int __user *pMem) +static inline void storeSingle(struct roundingData *roundData, const unsigned int Fn, unsigned int __user *pMem) { FPA11 *fpa11 = GET_FPA11(); union { @@ -106,12 +106,12 @@ static inline void storeSingle(const unsigned int Fn, unsigned int __user *pMem) switch (fpa11->fType[Fn]) { case typeDouble: - val.f = float64_to_float32(fpa11->fpreg[Fn].fDouble); + val.f = float64_to_float32(roundData, fpa11->fpreg[Fn].fDouble); break; #ifdef CONFIG_FPE_NWFPE_XP case typeExtended: - val.f = floatx80_to_float32(fpa11->fpreg[Fn].fExtended); + val.f = floatx80_to_float32(roundData, fpa11->fpreg[Fn].fExtended); break; #endif @@ -122,7 +122,7 @@ static inline void storeSingle(const unsigned int Fn, unsigned int __user *pMem) put_user(val.i[0], pMem); } -static inline void storeDouble(const unsigned int Fn, unsigned int __user *pMem) +static inline void storeDouble(struct roundingData *roundData, const unsigned int Fn, unsigned int __user *pMem) { FPA11 *fpa11 = GET_FPA11(); union { @@ -137,7 +137,7 @@ static inline void storeDouble(const unsigned int Fn, unsigned int __user *pMem) #ifdef CONFIG_FPE_NWFPE_XP case typeExtended: - val.f = floatx80_to_float64(fpa11->fpreg[Fn].fExtended); + val.f = floatx80_to_float64(roundData, fpa11->fpreg[Fn].fExtended); break; #endif @@ -259,8 +259,11 @@ unsigned int PerformSTF(const unsigned int opcode) { unsigned int __user *pBase, *pAddress, *pFinal; unsigned int nRc = 1, write_back = WRITE_BACK(opcode); + struct roundingData roundData; - SetRoundingMode(ROUND_TO_NEAREST); + roundData.mode = SetRoundingMode(opcode); + roundData.precision = SetRoundingPrecision(opcode); + roundData.exception = 0; pBase = (unsigned int __user *) readRegister(getRn(opcode)); if (REG_PC == getRn(opcode)) { @@ -281,10 +284,10 @@ unsigned int PerformSTF(const unsigned int opcode) switch (opcode & MASK_TRANSFER_LENGTH) { case TRANSFER_SINGLE: - storeSingle(getFd(opcode), pAddress); + storeSingle(&roundData, getFd(opcode), pAddress); break; case TRANSFER_DOUBLE: - storeDouble(getFd(opcode), pAddress); + storeDouble(&roundData, getFd(opcode), pAddress); break; #ifdef CONFIG_FPE_NWFPE_XP case TRANSFER_EXTENDED: @@ -295,6 +298,9 @@ unsigned int PerformSTF(const unsigned int opcode) nRc = 0; } + if (roundData.exception) + float_raise(roundData.exception); + if (write_back) writeRegister(getRn(opcode), (unsigned long) pFinal); return nRc; diff --git a/arch/arm/nwfpe/fpa11_cprt.c b/arch/arm/nwfpe/fpa11_cprt.c index db01fbc9721..adf8d300054 100644 --- a/arch/arm/nwfpe/fpa11_cprt.c +++ b/arch/arm/nwfpe/fpa11_cprt.c @@ -33,8 +33,6 @@ extern flag floatx80_is_nan(floatx80); extern flag float64_is_nan(float64); extern flag float32_is_nan(float32); -void SetRoundingMode(const unsigned int opcode); - unsigned int PerformFLT(const unsigned int opcode); unsigned int PerformFIX(const unsigned int opcode); @@ -77,14 +75,17 @@ unsigned int EmulateCPRT(const unsigned int opcode) unsigned int PerformFLT(const unsigned int opcode) { FPA11 *fpa11 = GET_FPA11(); - SetRoundingMode(opcode); - SetRoundingPrecision(opcode); + struct roundingData roundData; + + roundData.mode = SetRoundingMode(opcode); + roundData.precision = SetRoundingPrecision(opcode); + roundData.exception = 0; switch (opcode & MASK_ROUNDING_PRECISION) { case ROUND_SINGLE: { fpa11->fType[getFn(opcode)] = typeSingle; - fpa11->fpreg[getFn(opcode)].fSingle = int32_to_float32(readRegister(getRd(opcode))); + fpa11->fpreg[getFn(opcode)].fSingle = int32_to_float32(&roundData, readRegister(getRd(opcode))); } break; @@ -108,6 +109,9 @@ unsigned int PerformFLT(const unsigned int opcode) return 0; } + if (roundData.exception) + float_raise(roundData.exception); + return 1; } @@ -115,26 +119,29 @@ unsigned int PerformFIX(const unsigned int opcode) { FPA11 *fpa11 = GET_FPA11(); unsigned int Fn = getFm(opcode); + struct roundingData roundData; - SetRoundingMode(opcode); + roundData.mode = SetRoundingMode(opcode); + roundData.precision = SetRoundingPrecision(opcode); + roundData.exception = 0; switch (fpa11->fType[Fn]) { case typeSingle: { - writeRegister(getRd(opcode), float32_to_int32(fpa11->fpreg[Fn].fSingle)); + writeRegister(getRd(opcode), float32_to_int32(&roundData, fpa11->fpreg[Fn].fSingle)); } break; case typeDouble: { - writeRegister(getRd(opcode), float64_to_int32(fpa11->fpreg[Fn].fDouble)); + writeRegister(getRd(opcode), float64_to_int32(&roundData, fpa11->fpreg[Fn].fDouble)); } break; #ifdef CONFIG_FPE_NWFPE_XP case typeExtended: { - writeRegister(getRd(opcode), floatx80_to_int32(fpa11->fpreg[Fn].fExtended)); + writeRegister(getRd(opcode), floatx80_to_int32(&roundData, fpa11->fpreg[Fn].fExtended)); } break; #endif @@ -143,6 +150,9 @@ unsigned int PerformFIX(const unsigned int opcode) return 0; } + if (roundData.exception) + float_raise(roundData.exception); + return 1; } diff --git a/arch/arm/nwfpe/fpmodule.c b/arch/arm/nwfpe/fpmodule.c index 12885f31d34..2dfe1ac42ee 100644 --- a/arch/arm/nwfpe/fpmodule.c +++ b/arch/arm/nwfpe/fpmodule.c @@ -116,8 +116,6 @@ fpmodule.c to integrate with the NetBSD kernel (I hope!). code to access data in user space in some other source files at the moment (grep for get_user / put_user calls). --philb] -float_exception_flags is a global variable in SoftFloat. - This function is called by the SoftFloat routines to raise a floating point exception. We check the trap enable byte in the FPSR, and raise a SIGFPE exception if necessary. If not the relevant bits in the @@ -129,15 +127,14 @@ void float_raise(signed char flags) register unsigned int fpsr, cumulativeTraps; #ifdef CONFIG_DEBUG_USER - printk(KERN_DEBUG - "NWFPE: %s[%d] takes exception %08x at %p from %08lx\n", - current->comm, current->pid, flags, - __builtin_return_address(0), GET_USERREG()->ARM_pc); + /* Ignore inexact errors as there are far too many of them to log */ + if (flags & ~BIT_IXC) + printk(KERN_DEBUG + "NWFPE: %s[%d] takes exception %08x at %p from %08lx\n", + current->comm, current->pid, flags, + __builtin_return_address(0), GET_USERREG()->ARM_pc); #endif - /* Keep SoftFloat exception flags up to date. */ - float_exception_flags |= flags; - /* Read fpsr and initialize the cumulativeTraps. */ fpsr = readFPSR(); cumulativeTraps = 0; diff --git a/arch/arm/nwfpe/single_cpdo.c b/arch/arm/nwfpe/single_cpdo.c index 705808e88d9..c66981d682c 100644 --- a/arch/arm/nwfpe/single_cpdo.c +++ b/arch/arm/nwfpe/single_cpdo.c @@ -36,17 +36,17 @@ float32 float32_arccos(float32 rFm); float32 float32_pow(float32 rFn, float32 rFm); float32 float32_pol(float32 rFn, float32 rFm); -static float32 float32_rsf(float32 rFn, float32 rFm) +static float32 float32_rsf(struct roundingData *roundData, float32 rFn, float32 rFm) { - return float32_sub(rFm, rFn); + return float32_sub(roundData, rFm, rFn); } -static float32 float32_rdv(float32 rFn, float32 rFm) +static float32 float32_rdv(struct roundingData *roundData, float32 rFn, float32 rFm) { - return float32_div(rFm, rFn); + return float32_div(roundData, rFm, rFn); } -static float32 (*const dyadic_single[16])(float32 rFn, float32 rFm) = { +static float32 (*const dyadic_single[16])(struct roundingData *, float32 rFn, float32 rFm) = { [ADF_CODE >> 20] = float32_add, [MUF_CODE >> 20] = float32_mul, [SUF_CODE >> 20] = float32_sub, @@ -60,22 +60,22 @@ static float32 (*const dyadic_single[16])(float32 rFn, float32 rFm) = { [FRD_CODE >> 20] = float32_rdv, }; -static float32 float32_mvf(float32 rFm) +static float32 float32_mvf(struct roundingData *roundData, float32 rFm) { return rFm; } -static float32 float32_mnf(float32 rFm) +static float32 float32_mnf(struct roundingData *roundData, float32 rFm) { return rFm ^ 0x80000000; } -static float32 float32_abs(float32 rFm) +static float32 float32_abs(struct roundingData *roundData, float32 rFm) { return rFm & 0x7fffffff; } -static float32 (*const monadic_single[16])(float32 rFm) = { +static float32 (*const monadic_single[16])(struct roundingData*, float32 rFm) = { [MVF_CODE >> 20] = float32_mvf, [MNF_CODE >> 20] = float32_mnf, [ABS_CODE >> 20] = float32_abs, @@ -85,7 +85,7 @@ static float32 (*const monadic_single[16])(float32 rFm) = { [NRM_CODE >> 20] = float32_mvf, }; -unsigned int SingleCPDO(const unsigned int opcode, FPREG * rFd) +unsigned int SingleCPDO(struct roundingData *roundData, const unsigned int opcode, FPREG * rFd) { FPA11 *fpa11 = GET_FPA11(); float32 rFm; @@ -108,13 +108,13 @@ unsigned int SingleCPDO(const unsigned int opcode, FPREG * rFd) if (fpa11->fType[Fn] == typeSingle && dyadic_single[opc_mask_shift]) { rFn = fpa11->fpreg[Fn].fSingle; - rFd->fSingle = dyadic_single[opc_mask_shift](rFn, rFm); + rFd->fSingle = dyadic_single[opc_mask_shift](roundDat |