diff options
| author | Dmitry Torokhov <dtor_core@ameritech.net> | 2006-04-02 07:08:05 +0200 |
|---|---|---|
| committer | Dmitry Torokhov <dtor_core@ameritech.net> | 2006-04-02 07:08:05 +0200 |
| commit | 95d465fd750897ab32462a6702fbfe1b122cbbc0 (patch) | |
| tree | 65c38b2f11c51bb6932e44dd6c92f15b0091abfe /arch/powerpc/math-emu/mcrfs.c | |
| parent | Input: gameport - fix memory leak (diff) | |
| parent | Merge master.kernel.org:/home/rmk/linux-2.6-serial (diff) | |
| download | linux-95d465fd750897ab32462a6702fbfe1b122cbbc0.tar.xz linux-95d465fd750897ab32462a6702fbfe1b122cbbc0.zip | |
Manual merge with Linus.
Conflicts:
arch/powerpc/kernel/setup-common.c
drivers/input/keyboard/hil_kbd.c
drivers/input/mouse/hil_ptr.c
Diffstat (limited to 'arch/powerpc/math-emu/mcrfs.c')
| -rw-r--r-- | arch/powerpc/math-emu/mcrfs.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/powerpc/math-emu/mcrfs.c b/arch/powerpc/math-emu/mcrfs.c new file mode 100644 index 000000000000..106dd912914b --- /dev/null +++ b/arch/powerpc/math-emu/mcrfs.c @@ -0,0 +1,31 @@ +#include <linux/types.h> +#include <linux/errno.h> +#include <asm/uaccess.h> + +#include "soft-fp.h" + +int +mcrfs(u32 *ccr, u32 crfD, u32 crfS) +{ + u32 value, clear; + +#ifdef DEBUG + printk("%s: %p (%08x) %d %d\n", __FUNCTION__, ccr, *ccr, crfD, crfS); +#endif + + clear = 15 << ((7 - crfS) << 2); + if (!crfS) + clear = 0x90000000; + + value = (__FPU_FPSCR >> ((7 - crfS) << 2)) & 15; + __FPU_FPSCR &= ~(clear); + + *ccr &= ~(15 << ((7 - crfD) << 2)); + *ccr |= (value << ((7 - crfD) << 2)); + +#ifdef DEBUG + printk("CR: %08x\n", __FUNCTION__, *ccr); +#endif + + return 0; +} |