Take a look at ftp.linux-mips.org:/pub/linux/mips/people/ppopov. There's a README there that describes patches that are not in the tree. One of them is a tiny patch called coherent_cow.patch that fixes the compilation problem below. Ralf was looking for a more permanent fix, so he hasn't applied this patch. Pete On Thu, 2003-09-11 at 07:05, Bruno Randolf wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > hello! > > i have an Au1500, silicon stepping AD (mtx-1 board) which as far as i > understand should be able to do cache coherent io. but if i change > CONFIG_NONCOHERENT_IO to "n" compilation of 2.4.21 fails with > > mipsel-linux-gcc -D__KERNEL__ -I/data/kernel/mtx-2.4.21/include -Wall > - -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common > - -fomit-frame-pointer -I /data/kernel/mtx-2.4.21/include/asm/gcc -G 0 > - -mno-abicalls -fno-pic -pipe -mcpu=r4600 -mips2 -Wa,--trap -nostdinc > - -iwithprefix include -DKBUILD_BASENAME=fork -c -o fork.o fork.c > In file included from fork.c:20: > /data/kernel/mtx-2.4.21/include/linux/vmalloc.h: In function `vmalloc': > /data/kernel/mtx-2.4.21/include/linux/vmalloc.h:36: `_CACHE_CACHABLE_COW' > undeclared (first use in this function) > /data/kernel/mtx-2.4.21/include/linux/vmalloc.h:36: (Each undeclared > identifier is reported only once > /data/kernel/mtx-2.4.21/include/linux/vmalloc.h:36: for each function it > appears in.) > /data/kernel/mtx-2.4.21/include/linux/vmalloc.h: In function `vmalloc_dma': > /data/kernel/mtx-2.4.21/include/linux/vmalloc.h:45: `_CACHE_CACHABLE_COW' > undeclared (first use in this function) > /data/kernel/mtx-2.4.21/include/linux/vmalloc.h: In function `vmalloc_32': > /data/kernel/mtx-2.4.21/include/linux/vmalloc.h:54: `_CACHE_CACHABLE_COW' > undeclared (first use in this function) > make[2]: *** [fork.o] Error 1 > > how could i fix that? > > thanks, > bruno > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.2.3 (GNU/Linux) > > iD8DBQE/YIEZfg2jtUL97G4RAm0pAJ47FLT9fJaNWIqE0gHJ5zsPlZhPngCfY+AY > ZOEDI2hvDJ/zbdk98TzCm9k= > =FcHD > -----END PGP SIGNATURE----- > > >
