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authorLinus Torvalds <torvalds@linux-foundation.org>2013-03-02 10:44:16 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2013-03-02 10:44:16 -0500
commitaebb2afd5420c860b7fbc3882a323ef1247fbf16 (patch)
tree05ee0efcebca5ec421de44de7a6d6271088c64a8 /arch/mips/lib/memcpy.S
parent8eae508b7c6ff502a71d0293b69e97c5505d5840 (diff)
parentedb15d83a875a1f4b1576188844db5c330c3267d (diff)
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle: o Add basic support for the Mediatek/Ralink Wireless SoC family. o The Qualcomm Atheros platform is extended by support for the new QCA955X SoC series as well as a bunch of patches that get the code ready for OF support. o Lantiq and BCM47XX platform have a few improvements and bug fixes. o MIPS has sent a few patches that get the kernel ready for the upcoming microMIPS support. o The rest of the series is made up of small bug fixes and cleanups that relate to various parts of the MIPS code. The biggy in there is a whitespace cleanup. After I was sent another set of whitespace cleanup patches I decided it was the time to clean the whitespace "issues" for once and and that touches many files below arch/mips/. Fix up silly conflicts, mostly due to whitespace cleanups. * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (105 commits) MIPS: Quit exporting kernel internel break codes to uapi/asm/break.h MIPS: remove broken conditional inside vpe loader code MIPS: SMTC: fix implicit declaration of set_vi_handler MIPS: early_printk: drop __init annotations MIPS: Probe for and report hardware virtualization support. MIPS: ath79: add support for the Qualcomm Atheros AP136-010 board MIPS: ath79: add USB controller registration code for the QCA955X SoCs MIPS: ath79: add PCI controller registration code for the QCA955X SoCs MIPS: ath79: add WMAC registration code for the QCA955X SoCs MIPS: ath79: register UART for the QCA955X SoCs MIPS: ath79: add QCA955X specific glue to ath79_device_reset_{set, clear} MIPS: ath79: add GPIO setup code for the QCA955X SoCs MIPS: ath79: add IRQ handling code for the QCA955X SoCs MIPS: ath79: add clock setup code for the QCA955X SoCs MIPS: ath79: add SoC detection code for the QCA955X SoCs MIPS: ath79: add early printk support for the QCA955X SoCs MIPS: ath79: fix WMAC IRQ resource assignment mips: reserve elfcorehdr mips: Make sure kernel memory is in iomem MIPS: ath79: use dynamically allocated USB platform devices ...
Diffstat (limited to 'arch/mips/lib/memcpy.S')
-rw-r--r--arch/mips/lib/memcpy.S34
1 files changed, 17 insertions, 17 deletions
diff --git a/arch/mips/lib/memcpy.S b/arch/mips/lib/memcpy.S
index 65192c06781e..c5c40dad0bbf 100644
--- a/arch/mips/lib/memcpy.S
+++ b/arch/mips/lib/memcpy.S
@@ -156,15 +156,15 @@
156 156
157#ifdef CONFIG_CPU_LITTLE_ENDIAN 157#ifdef CONFIG_CPU_LITTLE_ENDIAN
158#define LDFIRST LOADR 158#define LDFIRST LOADR
159#define LDREST LOADL 159#define LDREST LOADL
160#define STFIRST STORER 160#define STFIRST STORER
161#define STREST STOREL 161#define STREST STOREL
162#define SHIFT_DISCARD SLLV 162#define SHIFT_DISCARD SLLV
163#else 163#else
164#define LDFIRST LOADL 164#define LDFIRST LOADL
165#define LDREST LOADR 165#define LDREST LOADR
166#define STFIRST STOREL 166#define STFIRST STOREL
167#define STREST STORER 167#define STREST STORER
168#define SHIFT_DISCARD SRLV 168#define SHIFT_DISCARD SRLV
169#endif 169#endif
170 170
@@ -235,7 +235,7 @@ __copy_user_common:
235 * src and dst are aligned; need to compute rem 235 * src and dst are aligned; need to compute rem
236 */ 236 */
237.Lboth_aligned: 237.Lboth_aligned:
238 SRL t0, len, LOG_NBYTES+3 # +3 for 8 units/iter 238 SRL t0, len, LOG_NBYTES+3 # +3 for 8 units/iter
239 beqz t0, .Lcleanup_both_aligned # len < 8*NBYTES 239 beqz t0, .Lcleanup_both_aligned # len < 8*NBYTES
240 and rem, len, (8*NBYTES-1) # rem = len % (8*NBYTES) 240 and rem, len, (8*NBYTES-1) # rem = len % (8*NBYTES)
241 PREF( 0, 3*32(src) ) 241 PREF( 0, 3*32(src) )
@@ -313,7 +313,7 @@ EXC( STORE t0, 0(dst), .Ls_exc_p1u)
313 /* 313 /*
314 * src and dst are aligned, need to copy rem bytes (rem < NBYTES) 314 * src and dst are aligned, need to copy rem bytes (rem < NBYTES)
315 * A loop would do only a byte at a time with possible branch 315 * A loop would do only a byte at a time with possible branch
316 * mispredicts. Can't do an explicit LOAD dst,mask,or,STORE 316 * mispredicts. Can't do an explicit LOAD dst,mask,or,STORE
317 * because can't assume read-access to dst. Instead, use 317 * because can't assume read-access to dst. Instead, use
318 * STREST dst, which doesn't require read access to dst. 318 * STREST dst, which doesn't require read access to dst.
319 * 319 *
@@ -327,7 +327,7 @@ EXC( STORE t0, 0(dst), .Ls_exc_p1u)
327 li bits, 8*NBYTES 327 li bits, 8*NBYTES
328 SLL rem, len, 3 # rem = number of bits to keep 328 SLL rem, len, 3 # rem = number of bits to keep
329EXC( LOAD t0, 0(src), .Ll_exc) 329EXC( LOAD t0, 0(src), .Ll_exc)
330 SUB bits, bits, rem # bits = number of bits to discard 330 SUB bits, bits, rem # bits = number of bits to discard
331 SHIFT_DISCARD t0, t0, bits 331 SHIFT_DISCARD t0, t0, bits
332EXC( STREST t0, -1(t1), .Ls_exc) 332EXC( STREST t0, -1(t1), .Ls_exc)
333 jr ra 333 jr ra
@@ -343,7 +343,7 @@ EXC( STREST t0, -1(t1), .Ls_exc)
343 * Set match = (src and dst have same alignment) 343 * Set match = (src and dst have same alignment)
344 */ 344 */
345#define match rem 345#define match rem
346EXC( LDFIRST t3, FIRST(0)(src), .Ll_exc) 346EXC( LDFIRST t3, FIRST(0)(src), .Ll_exc)
347 ADD t2, zero, NBYTES 347 ADD t2, zero, NBYTES
348EXC( LDREST t3, REST(0)(src), .Ll_exc_copy) 348EXC( LDREST t3, REST(0)(src), .Ll_exc_copy)
349 SUB t2, t2, t1 # t2 = number of bytes copied 349 SUB t2, t2, t1 # t2 = number of bytes copied
@@ -357,10 +357,10 @@ EXC( STFIRST t3, FIRST(0)(dst), .Ls_exc)
357 ADD src, src, t2 357 ADD src, src, t2
358 358
359.Lsrc_unaligned_dst_aligned: 359.Lsrc_unaligned_dst_aligned:
360 SRL t0, len, LOG_NBYTES+2 # +2 for 4 units/iter 360 SRL t0, len, LOG_NBYTES+2 # +2 for 4 units/iter
361 PREF( 0, 3*32(src) ) 361 PREF( 0, 3*32(src) )
362 beqz t0, .Lcleanup_src_unaligned 362 beqz t0, .Lcleanup_src_unaligned
363 and rem, len, (4*NBYTES-1) # rem = len % 4*NBYTES 363 and rem, len, (4*NBYTES-1) # rem = len % 4*NBYTES
364 PREF( 1, 3*32(dst) ) 364 PREF( 1, 3*32(dst) )
3651: 3651:
366/* 366/*
@@ -370,13 +370,13 @@ EXC( STFIRST t3, FIRST(0)(dst), .Ls_exc)
370 * are to the same unit (unless src is aligned, but it's not). 370 * are to the same unit (unless src is aligned, but it's not).
371 */ 371 */
372 R10KCBARRIER(0(ra)) 372 R10KCBARRIER(0(ra))
373EXC( LDFIRST t0, FIRST(0)(src), .Ll_exc) 373EXC( LDFIRST t0, FIRST(0)(src), .Ll_exc)
374EXC( LDFIRST t1, FIRST(1)(src), .Ll_exc_copy) 374EXC( LDFIRST t1, FIRST(1)(src), .Ll_exc_copy)
375 SUB len, len, 4*NBYTES 375 SUB len, len, 4*NBYTES
376EXC( LDREST t0, REST(0)(src), .Ll_exc_copy) 376EXC( LDREST t0, REST(0)(src), .Ll_exc_copy)
377EXC( LDREST t1, REST(1)(src), .Ll_exc_copy) 377EXC( LDREST t1, REST(1)(src), .Ll_exc_copy)
378EXC( LDFIRST t2, FIRST(2)(src), .Ll_exc_copy) 378EXC( LDFIRST t2, FIRST(2)(src), .Ll_exc_copy)
379EXC( LDFIRST t3, FIRST(3)(src), .Ll_exc_copy) 379EXC( LDFIRST t3, FIRST(3)(src), .Ll_exc_copy)
380EXC( LDREST t2, REST(2)(src), .Ll_exc_copy) 380EXC( LDREST t2, REST(2)(src), .Ll_exc_copy)
381EXC( LDREST t3, REST(3)(src), .Ll_exc_copy) 381EXC( LDREST t3, REST(3)(src), .Ll_exc_copy)
382 PREF( 0, 9*32(src) ) # 0 is PREF_LOAD (not streamed) 382 PREF( 0, 9*32(src) ) # 0 is PREF_LOAD (not streamed)
@@ -388,7 +388,7 @@ EXC( STORE t0, UNIT(0)(dst), .Ls_exc_p4u)
388EXC( STORE t1, UNIT(1)(dst), .Ls_exc_p3u) 388EXC( STORE t1, UNIT(1)(dst), .Ls_exc_p3u)
389EXC( STORE t2, UNIT(2)(dst), .Ls_exc_p2u) 389EXC( STORE t2, UNIT(2)(dst), .Ls_exc_p2u)
390EXC( STORE t3, UNIT(3)(dst), .Ls_exc_p1u) 390EXC( STORE t3, UNIT(3)(dst), .Ls_exc_p1u)
391 PREF( 1, 9*32(dst) ) # 1 is PREF_STORE (not streamed) 391 PREF( 1, 9*32(dst) ) # 1 is PREF_STORE (not streamed)
392 .set reorder /* DADDI_WAR */ 392 .set reorder /* DADDI_WAR */
393 ADD dst, dst, 4*NBYTES 393 ADD dst, dst, 4*NBYTES
394 bne len, rem, 1b 394 bne len, rem, 1b
@@ -502,7 +502,7 @@ EXC( lb t1, 0(src), .Ll_exc)
502 502
503 503
504#define SEXC(n) \ 504#define SEXC(n) \
505 .set reorder; /* DADDI_WAR */ \ 505 .set reorder; /* DADDI_WAR */ \
506.Ls_exc_p ## n ## u: \ 506.Ls_exc_p ## n ## u: \
507 ADD len, len, n*NBYTES; \ 507 ADD len, len, n*NBYTES; \
508 jr ra; \ 508 jr ra; \