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authorkaf24@scramble.cl.cam.ac.uk <kaf24@scramble.cl.cam.ac.uk>2003-03-12 00:15:31 +0000
committerkaf24@scramble.cl.cam.ac.uk <kaf24@scramble.cl.cam.ac.uk>2003-03-12 00:15:31 +0000
commitee53d3b8685245febda44ac761877871ec4cd0f4 (patch)
tree67e5392c3f16c0716b3ca8356cd93cd244b58d4b /xenolinux-2.4.21-pre4-sparse/arch/xeno/lib/mmx.c
parent7c2ffc6c5043e0a49fbe1b81f9da465ec68a9e64 (diff)
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bitkeeper revision 1.122.1.5 (3e6e7c23wQxW8Ugs0UKsqigrHkcXQg)
mkbuildtree: new file .del-hypervisor-ifs~86b59453fcfcbc0d: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/hypervisor-ifs .del-usercopy.c~a4e3819a4723317b: Delete: xenolinux-2.4.21-pre4-sparse/arch/xeno/lib/usercopy.c .del-sys_i386.c~ad2d4399a2d28db9: Delete: xenolinux-2.4.21-pre4-sparse/arch/xeno/kernel/sys_i386.c .del-strstr.c~a59de40cfa231931: Delete: xenolinux-2.4.21-pre4-sparse/arch/xeno/lib/strstr.c .del-semaphore.c~e68c48eef7115b45: Delete: xenolinux-2.4.21-pre4-sparse/arch/xeno/kernel/semaphore.c .del-pageattr.c~f12f3a2d4d9a5533: Delete: xenolinux-2.4.21-pre4-sparse/arch/xeno/mm/pageattr.c .del-old-checksum.c~f071ac0bcd5b2d9a: Delete: xenolinux-2.4.21-pre4-sparse/arch/xeno/lib/old-checksum.c .del-mmx.c~c322b85572d0e637: Delete: xenolinux-2.4.21-pre4-sparse/arch/xeno/lib/mmx.c .del-memcpy.c~40a930c62e045f5: Delete: xenolinux-2.4.21-pre4-sparse/arch/xeno/lib/memcpy.c .del-iodebug.c~23f7b78313546ddc: Delete: xenolinux-2.4.21-pre4-sparse/arch/xeno/lib/iodebug.c 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xenolinux-2.4.21-pre4-sparse/include/asm-xeno/setup.h .del-serial.h~584ec6aaea6b0efc: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/serial.h .del-sembuf.h~4fc6c36d718bc878: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/sembuf.h .del-semaphore.h~90a0e3df1d186e71: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/semaphore.h .del-ptrace.c~5c3f8d1f817aa462: Delete: xenolinux-2.4.21-pre4-sparse/arch/xeno/kernel/ptrace.c .del-init_task.c~319ec38b798d3c7c: Delete: xenolinux-2.4.21-pre4-sparse/arch/xeno/kernel/init_task.c .del-scatterlist.h~1988430d982706fb: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/scatterlist.h .del-rwsem.h~548d272fd25fd023: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/rwsem.h .del-rwlock.h~75a3e9a0d5b70d88: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/rwlock.h .del-resource.h~4ac2e8ff9316f133: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/resource.h .del-posix_types.h~14d068cffd4b8776: Delete: 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.del-mman.h~43ec3a0326f0d774: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/mman.h .del-mca_dma.h~a4e495084d965428: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/mca_dma.h .del-mc146818rtc.h~d7e968dbd77bc13a: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/mc146818rtc.h .del-math_emu.h~fba78190435e5abd: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/math_emu.h .del-locks.h~e022163a8c6f92: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/locks.h .del-linux_logo.h~2034953cfe415a: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/linux_logo.h .del-ldt.h~191ca1efbffba82a: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/ldt.h .del-kmap_types.h~517fab0f9758f3b: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/kmap_types.h .del-keyboard.h~b2a7fe4183f53eb0: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/keyboard.h .del-ipcbuf.h~cee91af271f4ead9: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/ipcbuf.h .del-ipc.h~f6063a09bec6a01e: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/ipc.h .del-ioctls.h~cc185671abf46a0a: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/ioctls.h .del-ioctl.h~8603eb7a7f9acbad: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/ioctl.h .del-io_apic.h~9f66b09afe289021: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/io_apic.h .del-init.h~9d30d474b845bc1: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/init.h .del-ide.h~805c47c1a5ebf196: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/ide.h .del-i387.h~3b360e96fea6fe7: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/i387.h .del-hdreg.h~c4bbd6ffab3763d6: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/hdreg.h .del-hardirq.h~9b375250fe601395: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/hardirq.h .del-floppy.h~d6f10807cbe15906: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/floppy.h .del-fcntl.h~ee3e644a21150dde: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/fcntl.h .del-errno.h~bab55cfe5c4ff883: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/errno.h .del-elf.h~af645629b45e7fe7: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/elf.h .del-dma.h~938dff3f930de2e4: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/dma.h .del-div64.h~aa6562c04bfaf412: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/div64.h .del-delay.h~e3ba89df403d5622: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/delay.h .del-debugreg.h~b3975b26e222b6c3: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/debugreg.h .del-current.h~800e8314ee81c074: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/current.h .del-cpufeature.h~89666e396b49acdd: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/cpufeature.h .del-checksum.h~82af6c19c8cc4ff3: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/checksum.h .del-cache.h~694ef1ffd8450db4: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/cache.h .del-byteorder.h~f14ceb3575444d8a: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/byteorder.h .del-boot.h~83206c92a8649e3f: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/boot.h .del-bitops.h~e3c609f48d6cdb91: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/bitops.h .del-atomic.h~328669154749bfad: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/atomic.h .del-apicdef.h~2f13a4cfaa79d855: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/apicdef.h .del-apic.h~2690e76edadb6a8: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/apic.h .del-a.out.h~b638f33fa82e889d: Delete: xenolinux-2.4.21-pre4-sparse/include/asm-xeno/a.out.h
Diffstat (limited to 'xenolinux-2.4.21-pre4-sparse/arch/xeno/lib/mmx.c')
-rw-r--r--xenolinux-2.4.21-pre4-sparse/arch/xeno/lib/mmx.c399
1 files changed, 0 insertions, 399 deletions
diff --git a/xenolinux-2.4.21-pre4-sparse/arch/xeno/lib/mmx.c b/xenolinux-2.4.21-pre4-sparse/arch/xeno/lib/mmx.c
deleted file mode 100644
index 2e52b5d5af..0000000000
--- a/xenolinux-2.4.21-pre4-sparse/arch/xeno/lib/mmx.c
+++ /dev/null
@@ -1,399 +0,0 @@
-#include <linux/config.h>
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/sched.h>
-
-#include <asm/i387.h>
-#include <asm/hardirq.h>
-
-
-/*
- * MMX 3DNow! library helper functions
- *
- * To do:
- * We can use MMX just for prefetch in IRQ's. This may be a win.
- * (reported so on K6-III)
- * We should use a better code neutral filler for the short jump
- * leal ebx. [ebx] is apparently best for K6-2, but Cyrix ??
- * We also want to clobber the filler register so we dont get any
- * register forwarding stalls on the filler.
- *
- * Add *user handling. Checksums are not a win with MMX on any CPU
- * tested so far for any MMX solution figured.
- *
- * 22/09/2000 - Arjan van de Ven
- * Improved for non-egineering-sample Athlons
- *
- */
-
-void *_mmx_memcpy(void *to, const void *from, size_t len)
-{
- void *p;
- int i;
-
- if (in_interrupt())
- return __memcpy(to, from, len);
-
- p = to;
- i = len >> 6; /* len/64 */
-
- kernel_fpu_begin();
-
- __asm__ __volatile__ (
- "1: prefetch (%0)\n" /* This set is 28 bytes */
- " prefetch 64(%0)\n"
- " prefetch 128(%0)\n"
- " prefetch 192(%0)\n"
- " prefetch 256(%0)\n"
- "2: \n"
- ".section .fixup, \"ax\"\n"
- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
- " jmp 2b\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 1b, 3b\n"
- ".previous"
- : : "r" (from) );
-
-
- for(; i>5; i--)
- {
- __asm__ __volatile__ (
- "1: prefetch 320(%0)\n"
- "2: movq (%0), %%mm0\n"
- " movq 8(%0), %%mm1\n"
- " movq 16(%0), %%mm2\n"
- " movq 24(%0), %%mm3\n"
- " movq %%mm0, (%1)\n"
- " movq %%mm1, 8(%1)\n"
- " movq %%mm2, 16(%1)\n"
- " movq %%mm3, 24(%1)\n"
- " movq 32(%0), %%mm0\n"
- " movq 40(%0), %%mm1\n"
- " movq 48(%0), %%mm2\n"
- " movq 56(%0), %%mm3\n"
- " movq %%mm0, 32(%1)\n"
- " movq %%mm1, 40(%1)\n"
- " movq %%mm2, 48(%1)\n"
- " movq %%mm3, 56(%1)\n"
- ".section .fixup, \"ax\"\n"
- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
- " jmp 2b\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 1b, 3b\n"
- ".previous"
- : : "r" (from), "r" (to) : "memory");
- from+=64;
- to+=64;
- }
-
- for(; i>0; i--)
- {
- __asm__ __volatile__ (
- " movq (%0), %%mm0\n"
- " movq 8(%0), %%mm1\n"
- " movq 16(%0), %%mm2\n"
- " movq 24(%0), %%mm3\n"
- " movq %%mm0, (%1)\n"
- " movq %%mm1, 8(%1)\n"
- " movq %%mm2, 16(%1)\n"
- " movq %%mm3, 24(%1)\n"
- " movq 32(%0), %%mm0\n"
- " movq 40(%0), %%mm1\n"
- " movq 48(%0), %%mm2\n"
- " movq 56(%0), %%mm3\n"
- " movq %%mm0, 32(%1)\n"
- " movq %%mm1, 40(%1)\n"
- " movq %%mm2, 48(%1)\n"
- " movq %%mm3, 56(%1)\n"
- : : "r" (from), "r" (to) : "memory");
- from+=64;
- to+=64;
- }
- /*
- * Now do the tail of the block
- */
- __memcpy(to, from, len&63);
- kernel_fpu_end();
- return p;
-}
-
-#ifdef CONFIG_MK7
-
-/*
- * The K7 has streaming cache bypass load/store. The Cyrix III, K6 and
- * other MMX using processors do not.
- */
-
-static void fast_clear_page(void *page)
-{
- int i;
-
- kernel_fpu_begin();
-
- __asm__ __volatile__ (
- " pxor %%mm0, %%mm0\n" : :
- );
-
- for(i=0;i<4096/64;i++)
- {
- __asm__ __volatile__ (
- " movntq %%mm0, (%0)\n"
- " movntq %%mm0, 8(%0)\n"
- " movntq %%mm0, 16(%0)\n"
- " movntq %%mm0, 24(%0)\n"
- " movntq %%mm0, 32(%0)\n"
- " movntq %%mm0, 40(%0)\n"
- " movntq %%mm0, 48(%0)\n"
- " movntq %%mm0, 56(%0)\n"
- : : "r" (page) : "memory");
- page+=64;
- }
- /* since movntq is weakly-ordered, a "sfence" is needed to become
- * ordered again.
- */
- __asm__ __volatile__ (
- " sfence \n" : :
- );
- kernel_fpu_end();
-}
-
-static void fast_copy_page(void *to, void *from)
-{
- int i;
-
- kernel_fpu_begin();
-
- /* maybe the prefetch stuff can go before the expensive fnsave...
- * but that is for later. -AV
- */
- __asm__ __volatile__ (
- "1: prefetch (%0)\n"
- " prefetch 64(%0)\n"
- " prefetch 128(%0)\n"
- " prefetch 192(%0)\n"
- " prefetch 256(%0)\n"
- "2: \n"
- ".section .fixup, \"ax\"\n"
- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
- " jmp 2b\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 1b, 3b\n"
- ".previous"
- : : "r" (from) );
-
- for(i=0; i<(4096-320)/64; i++)
- {
- __asm__ __volatile__ (
- "1: prefetch 320(%0)\n"
- "2: movq (%0), %%mm0\n"
- " movntq %%mm0, (%1)\n"
- " movq 8(%0), %%mm1\n"
- " movntq %%mm1, 8(%1)\n"
- " movq 16(%0), %%mm2\n"
- " movntq %%mm2, 16(%1)\n"
- " movq 24(%0), %%mm3\n"
- " movntq %%mm3, 24(%1)\n"
- " movq 32(%0), %%mm4\n"
- " movntq %%mm4, 32(%1)\n"
- " movq 40(%0), %%mm5\n"
- " movntq %%mm5, 40(%1)\n"
- " movq 48(%0), %%mm6\n"
- " movntq %%mm6, 48(%1)\n"
- " movq 56(%0), %%mm7\n"
- " movntq %%mm7, 56(%1)\n"
- ".section .fixup, \"ax\"\n"
- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
- " jmp 2b\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 1b, 3b\n"
- ".previous"
- : : "r" (from), "r" (to) : "memory");
- from+=64;
- to+=64;
- }
- for(i=(4096-320)/64; i<4096/64; i++)
- {
- __asm__ __volatile__ (
- "2: movq (%0), %%mm0\n"
- " movntq %%mm0, (%1)\n"
- " movq 8(%0), %%mm1\n"
- " movntq %%mm1, 8(%1)\n"
- " movq 16(%0), %%mm2\n"
- " movntq %%mm2, 16(%1)\n"
- " movq 24(%0), %%mm3\n"
- " movntq %%mm3, 24(%1)\n"
- " movq 32(%0), %%mm4\n"
- " movntq %%mm4, 32(%1)\n"
- " movq 40(%0), %%mm5\n"
- " movntq %%mm5, 40(%1)\n"
- " movq 48(%0), %%mm6\n"
- " movntq %%mm6, 48(%1)\n"
- " movq 56(%0), %%mm7\n"
- " movntq %%mm7, 56(%1)\n"
- : : "r" (from), "r" (to) : "memory");
- from+=64;
- to+=64;
- }
- /* since movntq is weakly-ordered, a "sfence" is needed to become
- * ordered again.
- */
- __asm__ __volatile__ (
- " sfence \n" : :
- );
- kernel_fpu_end();
-}
-
-#else
-
-/*
- * Generic MMX implementation without K7 specific streaming
- */
-
-static void fast_clear_page(void *page)
-{
- int i;
-
- kernel_fpu_begin();
-
- __asm__ __volatile__ (
- " pxor %%mm0, %%mm0\n" : :
- );
-
- for(i=0;i<4096/128;i++)
- {
- __asm__ __volatile__ (
- " movq %%mm0, (%0)\n"
- " movq %%mm0, 8(%0)\n"
- " movq %%mm0, 16(%0)\n"
- " movq %%mm0, 24(%0)\n"
- " movq %%mm0, 32(%0)\n"
- " movq %%mm0, 40(%0)\n"
- " movq %%mm0, 48(%0)\n"
- " movq %%mm0, 56(%0)\n"
- " movq %%mm0, 64(%0)\n"
- " movq %%mm0, 72(%0)\n"
- " movq %%mm0, 80(%0)\n"
- " movq %%mm0, 88(%0)\n"
- " movq %%mm0, 96(%0)\n"
- " movq %%mm0, 104(%0)\n"
- " movq %%mm0, 112(%0)\n"
- " movq %%mm0, 120(%0)\n"
- : : "r" (page) : "memory");
- page+=128;
- }
-
- kernel_fpu_end();
-}
-
-static void fast_copy_page(void *to, void *from)
-{
- int i;
-
-
- kernel_fpu_begin();
-
- __asm__ __volatile__ (
- "1: prefetch (%0)\n"
- " prefetch 64(%0)\n"
- " prefetch 128(%0)\n"
- " prefetch 192(%0)\n"
- " prefetch 256(%0)\n"
- "2: \n"
- ".section .fixup, \"ax\"\n"
- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
- " jmp 2b\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 1b, 3b\n"
- ".previous"
- : : "r" (from) );
-
- for(i=0; i<4096/64; i++)
- {
- __asm__ __volatile__ (
- "1: prefetch 320(%0)\n"
- "2: movq (%0), %%mm0\n"
- " movq 8(%0), %%mm1\n"
- " movq 16(%0), %%mm2\n"
- " movq 24(%0), %%mm3\n"
- " movq %%mm0, (%1)\n"
- " movq %%mm1, 8(%1)\n"
- " movq %%mm2, 16(%1)\n"
- " movq %%mm3, 24(%1)\n"
- " movq 32(%0), %%mm0\n"
- " movq 40(%0), %%mm1\n"
- " movq 48(%0), %%mm2\n"
- " movq 56(%0), %%mm3\n"
- " movq %%mm0, 32(%1)\n"
- " movq %%mm1, 40(%1)\n"
- " movq %%mm2, 48(%1)\n"
- " movq %%mm3, 56(%1)\n"
- ".section .fixup, \"ax\"\n"
- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
- " jmp 2b\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 1b, 3b\n"
- ".previous"
- : : "r" (from), "r" (to) : "memory");
- from+=64;
- to+=64;
- }
- kernel_fpu_end();
-}
-
-
-#endif
-
-/*
- * Favour MMX for page clear and copy.
- */
-
-static void slow_zero_page(void * page)
-{
- int d0, d1;
- __asm__ __volatile__( \
- "cld\n\t" \
- "rep ; stosl" \
- : "=&c" (d0), "=&D" (d1)
- :"a" (0),"1" (page),"0" (1024)
- :"memory");
-}
-
-void mmx_clear_page(void * page)
-{
- if(in_interrupt())
- slow_zero_page(page);
- else
- fast_clear_page(page);
-}
-
-static void slow_copy_page(void *to, void *from)
-{
- int d0, d1, d2;
- __asm__ __volatile__( \
- "cld\n\t" \
- "rep ; movsl" \
- : "=&c" (d0), "=&D" (d1), "=&S" (d2) \
- : "0" (1024),"1" ((long) to),"2" ((long) from) \
- : "memory");
-}
-
-
-void mmx_copy_page(void *to, void *from)
-{
- if(in_interrupt())
- slow_copy_page(to, from);
- else
- fast_copy_page(to, from);
-}