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025a22151c
This code replaces earlier and incomplete handling of graphics on non-zero PCI domains (aka hoses or peer PCI buses). An option (CONFIG_VGA_HOSE) is set TRUE if configuring a GENERIC kernel, or a kernel for MARVEL, TITAN, or TSUNAMI machines, as these are the machines whose SRM consoles are capable of configuring and handling graphics options on non-zero hoses. All other machines have the option set FALSE. A routine, "find_console_vga_hose()", is used to find the graphics device which the machine's firmware believes is the console device, and it sets a global (pci_vga_hose) for later use in managing access to the device. This is called in "init_arch" on TITAN and TSUNAMI machines; MARVEL machines use a custom version of this routine because of extra complexity. A routine, "locate_and_init_vga()", is used to find the graphics device and set a global (pci_vga_hose) for later use in managing access to the device, in the case where "find_console_vga_hose" has failed. Various adjustments are made to the ioremap and ioportmap routines for detecting and translating "legacy" VGA register and memory references to the real PCI domain. [akpm@linux-foundation.org: don't statically init bss] [akpm@linux-foundation.org: build fix] Signed-off-by: Jay Estabrook <jay.estabrook@hp.com> Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Richard Henderson <rth@twiddle.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
227 lines
6.8 KiB
C
227 lines
6.8 KiB
C
#include <linux/interrupt.h>
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#include <linux/io.h>
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#include <asm/pgtable.h>
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/* Prototypes of functions used across modules here in this directory. */
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#define vucp volatile unsigned char *
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#define vusp volatile unsigned short *
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#define vip volatile int *
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#define vuip volatile unsigned int *
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#define vulp volatile unsigned long *
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struct pt_regs;
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struct task_struct;
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struct pci_dev;
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struct pci_controller;
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/* core_apecs.c */
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extern struct pci_ops apecs_pci_ops;
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extern void apecs_init_arch(void);
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extern void apecs_pci_clr_err(void);
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extern void apecs_machine_check(u64, u64);
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extern void apecs_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
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/* core_cia.c */
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extern struct pci_ops cia_pci_ops;
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extern void cia_init_pci(void);
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extern void cia_init_arch(void);
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extern void pyxis_init_arch(void);
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extern void cia_kill_arch(int);
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extern void cia_machine_check(u64, u64);
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extern void cia_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
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/* core_irongate.c */
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extern struct pci_ops irongate_pci_ops;
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extern int irongate_pci_clr_err(void);
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extern void irongate_init_arch(void);
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extern void irongate_machine_check(u64, u64);
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#define irongate_pci_tbi ((void *)0)
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/* core_lca.c */
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extern struct pci_ops lca_pci_ops;
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extern void lca_init_arch(void);
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extern void lca_machine_check(u64, u64);
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extern void lca_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
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/* core_marvel.c */
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extern struct pci_ops marvel_pci_ops;
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extern void marvel_init_arch(void);
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extern void marvel_kill_arch(int);
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extern void marvel_machine_check(u64, u64);
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extern void marvel_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
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extern int marvel_pa_to_nid(unsigned long);
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extern int marvel_cpuid_to_nid(int);
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extern unsigned long marvel_node_mem_start(int);
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extern unsigned long marvel_node_mem_size(int);
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extern struct _alpha_agp_info *marvel_agp_info(void);
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struct io7 *marvel_find_io7(int pe);
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struct io7 *marvel_next_io7(struct io7 *prev);
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void io7_clear_errors(struct io7 *io7);
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/* core_mcpcia.c */
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extern struct pci_ops mcpcia_pci_ops;
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extern void mcpcia_init_arch(void);
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extern void mcpcia_init_hoses(void);
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extern void mcpcia_machine_check(u64, u64);
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extern void mcpcia_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
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/* core_polaris.c */
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extern struct pci_ops polaris_pci_ops;
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extern int polaris_read_config_dword(struct pci_dev *, int, u32 *);
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extern int polaris_write_config_dword(struct pci_dev *, int, u32);
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extern void polaris_init_arch(void);
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extern void polaris_machine_check(u64, u64);
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#define polaris_pci_tbi ((void *)0)
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/* core_t2.c */
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extern struct pci_ops t2_pci_ops;
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extern void t2_init_arch(void);
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extern void t2_kill_arch(int);
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extern void t2_machine_check(u64, u64);
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extern void t2_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
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/* core_titan.c */
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extern struct pci_ops titan_pci_ops;
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extern void titan_init_arch(void);
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extern void titan_kill_arch(int);
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extern void titan_machine_check(u64, u64);
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extern void titan_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
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extern struct _alpha_agp_info *titan_agp_info(void);
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/* core_tsunami.c */
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extern struct pci_ops tsunami_pci_ops;
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extern void tsunami_init_arch(void);
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extern void tsunami_kill_arch(int);
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extern void tsunami_machine_check(u64, u64);
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extern void tsunami_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
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/* core_wildfire.c */
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extern struct pci_ops wildfire_pci_ops;
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extern void wildfire_init_arch(void);
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extern void wildfire_kill_arch(int);
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extern void wildfire_machine_check(u64, u64);
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extern void wildfire_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
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extern int wildfire_pa_to_nid(unsigned long);
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extern int wildfire_cpuid_to_nid(int);
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extern unsigned long wildfire_node_mem_start(int);
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extern unsigned long wildfire_node_mem_size(int);
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/* console.c */
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#ifdef CONFIG_VGA_HOSE
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extern void find_console_vga_hose(void);
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extern void locate_and_init_vga(void *(*)(void *, void *));
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#else
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static inline void find_console_vga_hose(void) { }
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static inline void locate_and_init_vga(void *(*sel_func)(void *, void *)) { }
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#endif
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/* setup.c */
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extern unsigned long srm_hae;
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extern int boot_cpuid;
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#ifdef CONFIG_VERBOSE_MCHECK
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extern unsigned long alpha_verbose_mcheck;
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#endif
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/* srmcons.c */
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#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_SRM)
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extern void register_srm_console(void);
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extern void unregister_srm_console(void);
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#else
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#define register_srm_console()
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#define unregister_srm_console()
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#endif
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/* smp.c */
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extern void setup_smp(void);
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extern void handle_ipi(struct pt_regs *);
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extern void smp_percpu_timer_interrupt(struct pt_regs *);
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/* bios32.c */
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/* extern void reset_for_srm(void); */
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/* time.c */
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extern irqreturn_t timer_interrupt(int irq, void *dev);
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extern void common_init_rtc(void);
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extern unsigned long est_cycle_freq;
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/* smc37c93x.c */
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extern void SMC93x_Init(void);
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/* smc37c669.c */
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extern void SMC669_Init(int);
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/* es1888.c */
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extern void es1888_init(void);
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/* ns87312.c */
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extern void ns87312_enable_ide(long ide_base);
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/* ../lib/fpreg.c */
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extern void alpha_write_fp_reg (unsigned long reg, unsigned long val);
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extern unsigned long alpha_read_fp_reg (unsigned long reg);
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/* head.S */
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extern void wrmces(unsigned long mces);
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extern void cserve_ena(unsigned long);
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extern void cserve_dis(unsigned long);
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extern void __smp_callin(unsigned long);
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/* entry.S */
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extern void entArith(void);
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extern void entIF(void);
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extern void entInt(void);
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extern void entMM(void);
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extern void entSys(void);
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extern void entUna(void);
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extern void entDbg(void);
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/* ptrace.c */
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extern int ptrace_set_bpt (struct task_struct *child);
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extern int ptrace_cancel_bpt (struct task_struct *child);
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/* traps.c */
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extern void dik_show_regs(struct pt_regs *regs, unsigned long *r9_15);
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extern void die_if_kernel(char *, struct pt_regs *, long, unsigned long *);
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/* sys_titan.c */
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extern void titan_dispatch_irqs(u64);
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/* ../mm/init.c */
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extern void switch_to_system_map(void);
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extern void srm_paging_stop(void);
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static inline int
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__alpha_remap_area_pages(unsigned long address, unsigned long phys_addr,
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unsigned long size, unsigned long flags)
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{
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pgprot_t prot;
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prot = __pgprot(_PAGE_VALID | _PAGE_ASM | _PAGE_KRE
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| _PAGE_KWE | flags);
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return ioremap_page_range(address, address + size, phys_addr, prot);
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}
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/* irq.c */
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#ifdef CONFIG_SMP
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#define mcheck_expected(cpu) (cpu_data[cpu].mcheck_expected)
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#define mcheck_taken(cpu) (cpu_data[cpu].mcheck_taken)
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#define mcheck_extra(cpu) (cpu_data[cpu].mcheck_extra)
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#else
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extern struct mcheck_info
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{
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unsigned char expected __attribute__((aligned(8)));
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unsigned char taken;
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unsigned char extra;
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} __mcheck_info;
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#define mcheck_expected(cpu) (*((void)(cpu), &__mcheck_info.expected))
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#define mcheck_taken(cpu) (*((void)(cpu), &__mcheck_info.taken))
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#define mcheck_extra(cpu) (*((void)(cpu), &__mcheck_info.extra))
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#endif
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extern void process_mcheck_info(unsigned long vector, unsigned long la_ptr,
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const char *machine, int expected);
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