On Tue, 2014-01-28 at 16:03 +0100, Olaf Hering wrote: > > d084775738b746648d4102337163a04534a02982 is the first bad commit > commit d084775738b746648d4102337163a04534a02982 > Author: Alistair Popple <alist...@popple.id.au> > Date: Mon Dec 9 18:17:03 2013 +1100 > > powerpc/iommu: Update the generic code to use dynamic iommu page sizes > > This patch updates the generic iommu backend code to use the > it_page_shift field to determine the iommu page size instead of > using hardcoded values.
Interesting. This is new infrastructure but a nop in functionality, ie, we support different page sizes for DMA but we still set it to 4k, unless we somewhat failed to initialize something... I'll have a look, I actually have one of those G5s here still. Thanks ! Cheers, Ben. > Signed-off-by: Alistair Popple <alist...@popple.id.au> > Signed-off-by: Benjamin Herrenschmidt <b...@kernel.crashing.org> > > :040000 040000 52a8e1ca3166e3c916f8cdc1df5c1f42c76b2359 > 3d4915e416b28501ff502305bd4f76d64153dbc4 M arch > :040000 040000 e9a9020abbef5622ffa1be381e0ff845e3741fa9 > d6fc206dd372c1a8deded826cc5de8b05f71c614 M drivers > > # git bisect log > git bisect start > # good: [b2e448eca1a52fea181905845728ae00a138d84e] Merge branch 'ipmi' (ipmi > patches from Corey Minyard) > git bisect good b2e448eca1a52fea181905845728ae00a138d84e > # bad: [54c0a4b46150db1571d955d598cd342c9f1d9657] Merge branch 'akpm' > (incoming from Andrew) > git bisect bad 54c0a4b46150db1571d955d598cd342c9f1d9657 > # good: [403227641533c4227d44d14f25c8f3676f6e7436] softirq: convert printks > to pr_<level> > git bisect good 403227641533c4227d44d14f25c8f3676f6e7436 > # bad: [8b52312880ecbc5beb40b313600f2903c16a59ed] powerpc/p1010rdb-pa: modify > phy interrupt. > git bisect bad 8b52312880ecbc5beb40b313600f2903c16a59ed > # good: [2c49195b6aedd21ff1cd1e095fab9866fba3411b] powernv: Remove > get/set_rtc_time when they are not present > git bisect good 2c49195b6aedd21ff1cd1e095fab9866fba3411b > # bad: [a68c33f3592eef63304a5f5ab68466539ccac56c] powerpc: Fix endian issues > in power7/8 machine check handler > git bisect bad a68c33f3592eef63304a5f5ab68466539ccac56c > # good: [c34a51ce49b40b9667cd7f5cc2e40475af8b4c3d] powerpc/mm: Enable > _PAGE_NUMA for book3s > git bisect good c34a51ce49b40b9667cd7f5cc2e40475af8b4c3d > # good: [fee26f6d5d68a8815b20c32d15dd70d5384eb937] powerpc: Remove unused > REDBOOT Kconfig parameter > git bisect good fee26f6d5d68a8815b20c32d15dd70d5384eb937 > # good: [3a553170d35d69bea3877bffa508489dfa6f133d] powerpc/iommu: Add > it_page_shift field to determine iommu page size > git bisect good 3a553170d35d69bea3877bffa508489dfa6f133d > # bad: [d084775738b746648d4102337163a04534a02982] powerpc/iommu: Update the > generic code to use dynamic iommu page sizes > git bisect bad d084775738b746648d4102337163a04534a02982 > # first bad commit: [d084775738b746648d4102337163a04534a02982] powerpc/iommu: > Update the generic code to use dynamic iommu page sizes > _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
