/* * linux/arch/alpha/kernel/machvec_impl.h * * Copyright (C) 1997, 1998 Richard Henderson * * This file has goodies to help simplify instantiation of machine vectors. */ #include <asm/pgalloc.h> /* Whee. These systems don't have an HAE: IRONGATE, MARVEL, POLARIS, TSUNAMI, TITAN, WILDFIRE Fix things up for the GENERIC kernel by defining the HAE address to be that of the cache. Now we can read and write it as we like. ;-) */ #define IRONGATE_HAE_ADDRESS (&alpha_mv.hae_cache) #define MARVEL_HAE_ADDRESS (&alpha_mv.hae_cache) #define POLARIS_HAE_ADDRESS (&alpha_mv.hae_cache) #define TSUNAMI_HAE_ADDRESS (&alpha_mv.hae_cache) #define TITAN_HAE_ADDRESS (&alpha_mv.hae_cache) #define WILDFIRE_HAE_ADDRESS (&alpha_mv.hae_cache) #ifdef CIA_ONE_HAE_WINDOW #define CIA_HAE_ADDRESS (&alpha_mv.hae_cache) #endif #ifdef MCPCIA_ONE_HAE_WINDOW #define MCPCIA_HAE_ADDRESS (&alpha_mv.hae_cache) #endif /* Only a few systems don't define IACK_SC, handling all interrupts through the SRM console. But splitting out that one case from IO() below seems like such a pain. Define this to get things to compile. */ #define JENSEN_IACK_SC 1 #define T2_IACK_SC 1 #define WILDFIRE_IACK_SC 1 /* FIXME */ /* * Some helpful macros for filling in the blanks. */ #define CAT1(x,y) x##y #define CAT(x,y) CAT1(x,y) #define DO_DEFAULT_RTC \ .rtc_port = 0x70, \ .rtc_get_time = common_get_rtc_time, \ .rtc_set_time = common_set_rtc_time #define DO_EV4_MMU \ .max_asn = EV4_MAX_ASN, \ .mv_switch_mm = ev4_switch_mm, \ .mv_activate_mm = ev4_activate_mm, \ .mv_flush_tlb_current = ev4_flush_tlb_current, \ .mv_flush_tlb_current_page = ev4_flush_tlb_current_page #define DO_EV5_MMU \ .max_asn = EV5_MAX_ASN, \ .mv_switch_mm = ev5_switch_mm, \ .mv_activate_mm = ev5_activate_mm, \ .mv_flush_tlb_current = ev5_flush_tlb_current, \ .mv_flush_tlb_current_page = ev5_flush_tlb_current_page #define DO_EV6_MMU \ .max_asn = EV6_MAX_ASN, \ .mv_switch_mm = ev5_switch_mm, \ .mv_activate_mm = ev5_activate_mm, \ .mv_flush_tlb_current = ev5_flush_tlb_current, \ .mv_flush_tlb_current_page = ev5_flush_tlb_current_page #define DO_EV7_MMU \ .max_asn = EV6_MAX_ASN, \ .mv_switch_mm = ev5_switch_mm, \ .mv_activate_mm = ev5_activate_mm, \ .mv_flush_tlb_current = ev5_flush_tlb_current, \ .mv_flush_tlb_current_page = ev5_flush_tlb_current_page #define IO_LITE(UP,low) \ .hae_register = (unsigned long *) CAT(UP,_HAE_ADDRESS), \ .iack_sc = CAT(UP,_IACK_SC), \ .mv_ioread8 = CAT(low,_ioread8), \ .mv_ioread16 = CAT(low,_ioread16), \ .mv_ioread32 = CAT(low,_ioread32), \ .mv_iowrite8 = CAT(low,_iowrite8), \ .mv_iowrite16 = CAT(low,_iowrite16), \ .mv_iowrite32 = CAT(low,_iowrite32), \ .mv_readb = CAT(low,_readb), \ .mv_readw = CAT(low,_readw), \ .mv_readl = CAT(low,_readl), \ .mv_readq = CAT(low,_readq), \ .mv_writeb = CAT(low,_writeb), \ .mv_writew = CAT(low,_writew), \ .mv_writel = CAT(low,_writel), \ .mv_writeq = CAT(low,_writeq), \ .mv_ioportmap = CAT(low,_ioportmap), \ .mv_ioremap = CAT(low,_ioremap), \ .mv_iounmap = CAT(low,_iounmap), \ .mv_is_ioaddr = CAT(low,_is_ioaddr), \ .mv_is_mmio = CAT(low,_is_mmio) \ #define IO(UP,low) \ IO_LITE(UP,low), \ .pci_ops = &CAT(low,_pci_ops), \ .mv_pci_tbi = CAT(low,_pci_tbi) #define DO_APECS_IO IO(APECS,apecs) #define DO_CIA_IO IO(CIA,cia) #define DO_IRONGATE_IO IO(IRONGATE,irongate) #define DO_LCA_IO IO(LCA,lca) #define DO_MARVEL_IO IO(MARVEL,marvel) #define DO_MCPCIA_IO IO(MCPCIA,mcpcia) #define DO_POLARIS_IO IO(POLARIS,polaris) #define DO_T2_IO IO(T2,t2) #define DO_TSUNAMI_IO IO(TSUNAMI,tsunami) #define DO_TITAN_IO IO(TITAN,titan) #define DO_WILDFIRE_IO IO(WILDFIRE,wildfire) #define DO_PYXIS_IO IO_LITE(CIA,cia_bwx), \ .pci_ops = &cia_pci_ops, \ .mv_pci_tbi = cia_pci_tbi /* * In a GENERIC kernel, we have lots of these vectors floating about, * all but one of which we want to go away. In a non-GENERIC kernel, * we want only one, ever. * * Accomplish this in the GENERIC kernel by putting all of the vectors * in the .init.data section where they'll go away. We'll copy the * one we want to the real alpha_mv vector in setup_arch. * * Accomplish this in a non-GENERIC kernel by ifdef'ing out all but * one of the vectors, which will not reside in .init.data. We then * alias this one vector to alpha_mv, so no copy is needed. * * Upshot: set __initdata to nothing for non-GENERIC kernels. */ #ifdef CONFIG_ALPHA_GENERIC #define __initmv __initdata #define ALIAS_MV(x) #else #define __initmv __initdata_refok /* GCC actually has a syntax for defining aliases, but is under some delusion that you shouldn't be able to declare it extern somewhere else beforehand. Fine. We'll do it ourselves. */ #if 0 #define ALIAS_MV(system) \ struct alpha_machine_vector alpha_mv __attribute__((alias(#system "_mv"))); #else #define ALIAS_MV(system) \ asm(".global alpha_mv\nalpha_mv = " #system "_mv"); #endif #endif /* GENERIC */