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author | 2005-10-28 21:09:26 -0700 | |
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committer | 2005-10-28 21:09:26 -0700 | |
commit | 8a212ab6b8a4ccc6f3c3d1beba5f92655c576404 (patch) | |
tree | 525271129ff9c692defdd20566f1f7203b18ff24 /arch/ia64/hp/common/sba_iommu.c | |
parent | Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6 (diff) | |
parent | [IA64] fix warning unused variable `g' (diff) | |
download | linux-8a212ab6b8a4ccc6f3c3d1beba5f92655c576404.tar.gz linux-8a212ab6b8a4ccc6f3c3d1beba5f92655c576404.tar.bz2 linux-8a212ab6b8a4ccc6f3c3d1beba5f92655c576404.zip |
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
Diffstat (limited to 'arch/ia64/hp/common/sba_iommu.c')
-rw-r--r-- | arch/ia64/hp/common/sba_iommu.c | 45 |
1 files changed, 32 insertions, 13 deletions
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c index 21bffba78b6d..bdccd0b1eb60 100644 --- a/arch/ia64/hp/common/sba_iommu.c +++ b/arch/ia64/hp/common/sba_iommu.c @@ -2028,9 +2028,40 @@ static struct acpi_driver acpi_sba_ioc_driver = { static int __init sba_init(void) { + if (!ia64_platform_is("hpzx1") && !ia64_platform_is("hpzx1_swiotlb")) + return 0; + acpi_bus_register_driver(&acpi_sba_ioc_driver); - if (!ioc_list) + if (!ioc_list) { +#ifdef CONFIG_IA64_GENERIC + extern int swiotlb_late_init_with_default_size (size_t size); + + /* + * If we didn't find something sba_iommu can claim, we + * need to setup the swiotlb and switch to the dig machvec. + */ + if (swiotlb_late_init_with_default_size(64 * (1<<20)) != 0) + panic("Unable to find SBA IOMMU or initialize " + "software I/O TLB: Try machvec=dig boot option"); + machvec_init("dig"); +#else + panic("Unable to find SBA IOMMU: Try a generic or DIG kernel"); +#endif return 0; + } + +#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_HP_ZX1_SWIOTLB) + /* + * hpzx1_swiotlb needs to have a fairly small swiotlb bounce + * buffer setup to support devices with smaller DMA masks than + * sba_iommu can handle. + */ + if (ia64_platform_is("hpzx1_swiotlb")) { + extern void hwsw_init(void); + + hwsw_init(); + } +#endif #ifdef CONFIG_PCI { @@ -2048,18 +2079,6 @@ sba_init(void) subsys_initcall(sba_init); /* must be initialized after ACPI etc., but before any drivers... */ -extern void dig_setup(char**); -/* - * MAX_DMA_ADDRESS needs to be setup prior to paging_init to do any good, - * so we use the platform_setup hook to fix it up. - */ -void __init -sba_setup(char **cmdline_p) -{ - MAX_DMA_ADDRESS = ~0UL; - dig_setup(cmdline_p); -} - static int __init nosbagart(char *str) { |