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linux/arch/sparc/kernel/entry.h

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[SPARC64]: Fix sparse warnings in arch/sparc64/kernel/{cpu,setup}.c We create a local header file entry.h, under arch/sparc64/kernel/, that we can use to declare routines either defined in assembler or only invoked from assembler. As well as other data objects which are private to the inner sparc64 kernel arch code. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-26 12:51:40 +08:00
#ifndef _ENTRY_H
#define _ENTRY_H
[SPARC64]: Fix sparse warnings in arch/sparc64/kernel/ptrace.c Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-26 15:46:21 +08:00
#include <linux/kernel.h>
[SPARC64]: Fix sparse errors in arch/sparc64/kernel/traps.c Add 'UL' markers to DCU_* macros. Declare C functions called from assembler in entry.h Declare C functions called from within the sparc64 arch code in include/asm-sparc64/*.h headers as appropriate. Remove unused routines in traps.c Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-26 15:19:43 +08:00
#include <linux/types.h>
[SPARC64]: Fix sparse warnings in arch/sparc64/kernel/ptrace.c Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-26 15:46:21 +08:00
#include <linux/init.h>
[SPARC64]: Fix sparse warnings in arch/sparc64/kernel/{cpu,setup}.c We create a local header file entry.h, under arch/sparc64/kernel/, that we can use to declare routines either defined in assembler or only invoked from assembler. As well as other data objects which are private to the inner sparc64 kernel arch code. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-26 12:51:40 +08:00
sparc: fix sparse warnings in irq_32.c Fix following sparse warnings: symbol 'static_irqaction' was not declared. Should it be static? symbol 'static_irq_count' was not declared. Should it be static? symbol 'irq_action_lock' was not declared. Should it be static? symbol 'unexpected_irq' was not declared. Should it be static? symbol 'handler_irq' was not declared. Should it be static? returning void-valued expression returning void-valued expression returning void-valued expression symbol 'init_IRQ' was not declared. Should it be static? Warnings were fixed by addding proper declarations and fixing return path of a few functions. There remains several warnings all related to the floppy driver. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-08 17:08:24 +08:00
/* irq */
extern void handler_irq(int irq, struct pt_regs *regs);
sparc: fix sparse warnings in traps_32.c o add decalrations to entry.h for functions only used from assembler o add declaratiosn to kernel.h for functions only used from .c o removed unused functions/extern declarations Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-08 17:04:59 +08:00
#ifdef CONFIG_SPARC32
/* traps */
extern void do_hw_interrupt(struct pt_regs *regs, unsigned long type);
extern void do_illegal_instruction(struct pt_regs *regs, unsigned long pc,
unsigned long npc, unsigned long psr);
extern void do_priv_instruction(struct pt_regs *regs, unsigned long pc,
unsigned long npc, unsigned long psr);
extern void do_memaccess_unaligned(struct pt_regs *regs, unsigned long pc,
unsigned long npc,
unsigned long psr);
extern void do_fpd_trap(struct pt_regs *regs, unsigned long pc,
unsigned long npc, unsigned long psr);
extern void do_fpe_trap(struct pt_regs *regs, unsigned long pc,
unsigned long npc, unsigned long psr);
extern void handle_tag_overflow(struct pt_regs *regs, unsigned long pc,
unsigned long npc, unsigned long psr);
extern void handle_watchpoint(struct pt_regs *regs, unsigned long pc,
unsigned long npc, unsigned long psr);
extern void handle_reg_access(struct pt_regs *regs, unsigned long pc,
unsigned long npc, unsigned long psr);
extern void handle_cp_disabled(struct pt_regs *regs, unsigned long pc,
unsigned long npc, unsigned long psr);
extern void handle_cp_exception(struct pt_regs *regs, unsigned long pc,
unsigned long npc, unsigned long psr);
/* entry.S */
extern void fpsave(unsigned long *fpregs, unsigned long *fsr,
void *fpqueue, unsigned long *fpqdepth);
extern void fpload(unsigned long *fpregs, unsigned long *fsr);
#else /* CONFIG_SPARC32 */
sparc64: Patch sun4v code sequences properly on module load. Some of the sun4v code patching occurs in inline functions visible to, and usable by, modules. Therefore we have to patch them up during module load. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-18 14:44:58 +08:00
#include <asm/trap_block.h>
sparc: Use popc if possible for hweight routines. Just like powerpc, we code patch at boot time. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-30 00:42:07 +08:00
struct popc_3insn_patch_entry {
unsigned int addr;
unsigned int insns[3];
};
extern struct popc_3insn_patch_entry __popc_3insn_patch,
__popc_3insn_patch_end;
sparc: Use popc when possible for ffs/__ffs/ffz. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-03 11:23:34 +08:00
struct popc_6insn_patch_entry {
unsigned int addr;
unsigned int insns[6];
};
extern struct popc_6insn_patch_entry __popc_6insn_patch,
__popc_6insn_patch_end;
sparc64: Use pause instruction when available. In atomic backoff and cpu_relax(), use the pause instruction found on SPARC-T4 and later. It makes the cpu strand unselectable for the given number of cycles, unless an intervening disrupting trap occurs. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-28 14:00:41 +08:00
struct pause_patch_entry {
unsigned int addr;
unsigned int insns[3];
};
sparc64: Improvde documentation and readability of atomic backoff code. Document what's going on in asm/backoff.h with a large and descriptive comment. Refer to it above the cpu_relax() definition in asm/processor_64.h Rename the pause patching section to have "3insn" in it's name like the other patching sections do. Based upon feedback from Sam Ravnborg. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-29 04:04:47 +08:00
extern struct pause_patch_entry __pause_3insn_patch,
__pause_3insn_patch_end;
sparc64: Use pause instruction when available. In atomic backoff and cpu_relax(), use the pause instruction found on SPARC-T4 and later. It makes the cpu strand unselectable for the given number of cycles, unless an intervening disrupting trap occurs. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-28 14:00:41 +08:00
[SPARC64]: Fix sparse warnings in arch/sparc64/kernel/{cpu,setup}.c We create a local header file entry.h, under arch/sparc64/kernel/, that we can use to declare routines either defined in assembler or only invoked from assembler. As well as other data objects which are private to the inner sparc64 kernel arch code. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-26 12:51:40 +08:00
extern void __init per_cpu_patch(void);
sparc64: Patch sun4v code sequences properly on module load. Some of the sun4v code patching occurs in inline functions visible to, and usable by, modules. Therefore we have to patch them up during module load. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-18 14:44:58 +08:00
extern void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *,
struct sun4v_1insn_patch_entry *);
extern void sun4v_patch_2insn_range(struct sun4v_2insn_patch_entry *,
struct sun4v_2insn_patch_entry *);
[SPARC64]: Fix sparse warnings in arch/sparc64/kernel/{cpu,setup}.c We create a local header file entry.h, under arch/sparc64/kernel/, that we can use to declare routines either defined in assembler or only invoked from assembler. As well as other data objects which are private to the inner sparc64 kernel arch code. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-26 12:51:40 +08:00
extern void __init sun4v_patch(void);
extern void __init boot_cpu_id_too_large(int cpu);
extern unsigned int dcache_parity_tl1_occurred;
extern unsigned int icache_parity_tl1_occurred;
[SPARC64]: Fix most sparse warnings in arch/sparc64/kernel/sys_sparc.c Sparse still doesn't like the funny cast we make from a scalar to a "union semun" (which is correct by the C language and in particular works with the sparc64 calling conventions, but sparse doesn't grok that yet). Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-26 16:43:29 +08:00
extern asmlinkage void sparc_breakpoint(struct pt_regs *regs);
[SPARC64]: Fix sparse warnings in arch/sparc64/kernel/time.c Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-26 16:11:55 +08:00
extern void timer_interrupt(int irq, struct pt_regs *regs);
[SPARC64]: Fix sparse warnings in arch/sparc64/kernel/signal.c Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-26 16:52:18 +08:00
extern void do_notify_resume(struct pt_regs *regs,
unsigned long orig_i0,
unsigned long thread_info_flags);
sparc64: Split syscall_trace() into two functions. Christoph Hellwig noticed that having both entry and exit logic in one function no longer makes sense, and having seperate ones simplifies things a lot. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-25 11:10:23 +08:00
extern asmlinkage int syscall_trace_enter(struct pt_regs *regs);
extern asmlinkage void syscall_trace_leave(struct pt_regs *regs);
[SPARC64]: Fix sparse warnings in arch/sparc64/kernel/ptrace.c Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-26 15:46:21 +08:00
[SPARC64]: Fix sparse errors in arch/sparc64/kernel/traps.c Add 'UL' markers to DCU_* macros. Declare C functions called from assembler in entry.h Declare C functions called from within the sparc64 arch code in include/asm-sparc64/*.h headers as appropriate. Remove unused routines in traps.c Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-26 15:19:43 +08:00
extern void bad_trap_tl1(struct pt_regs *regs, long lvl);
extern void do_fpe_common(struct pt_regs *regs);
extern void do_fpieee(struct pt_regs *regs);
extern void do_fpother(struct pt_regs *regs);
extern void do_tof(struct pt_regs *regs);
extern void do_div0(struct pt_regs *regs);
extern void do_illegal_instruction(struct pt_regs *regs);
extern void mem_address_unaligned(struct pt_regs *regs,
unsigned long sfar,
unsigned long sfsr);
extern void sun4v_do_mna(struct pt_regs *regs,
unsigned long addr,
unsigned long type_ctx);
extern void do_privop(struct pt_regs *regs);
extern void do_privact(struct pt_regs *regs);
extern void do_cee(struct pt_regs *regs);
extern void do_cee_tl1(struct pt_regs *regs);
extern void do_dae_tl1(struct pt_regs *regs);
extern void do_iae_tl1(struct pt_regs *regs);
extern void do_div0_tl1(struct pt_regs *regs);
extern void do_fpdis_tl1(struct pt_regs *regs);
extern void do_fpieee_tl1(struct pt_regs *regs);
extern void do_fpother_tl1(struct pt_regs *regs);
extern void do_ill_tl1(struct pt_regs *regs);
extern void do_irq_tl1(struct pt_regs *regs);
extern void do_lddfmna_tl1(struct pt_regs *regs);
extern void do_stdfmna_tl1(struct pt_regs *regs);
extern void do_paw(struct pt_regs *regs);
extern void do_paw_tl1(struct pt_regs *regs);
extern void do_vaw(struct pt_regs *regs);
extern void do_vaw_tl1(struct pt_regs *regs);
extern void do_tof_tl1(struct pt_regs *regs);
extern void do_getpsr(struct pt_regs *regs);
extern void spitfire_insn_access_exception(struct pt_regs *regs,
unsigned long sfsr,
unsigned long sfar);
extern void spitfire_insn_access_exception_tl1(struct pt_regs *regs,
unsigned long sfsr,
unsigned long sfar);
extern void spitfire_data_access_exception(struct pt_regs *regs,
unsigned long sfsr,
unsigned long sfar);
extern void spitfire_data_access_exception_tl1(struct pt_regs *regs,
unsigned long sfsr,
unsigned long sfar);
extern void spitfire_access_error(struct pt_regs *regs,
unsigned long status_encoded,
unsigned long afar);
extern void cheetah_fecc_handler(struct pt_regs *regs,
unsigned long afsr,
unsigned long afar);
extern void cheetah_cee_handler(struct pt_regs *regs,
unsigned long afsr,
unsigned long afar);
extern void cheetah_deferred_handler(struct pt_regs *regs,
unsigned long afsr,
unsigned long afar);
extern void cheetah_plus_parity_error(int type, struct pt_regs *regs);
extern void sun4v_insn_access_exception(struct pt_regs *regs,
unsigned long addr,
unsigned long type_ctx);
extern void sun4v_insn_access_exception_tl1(struct pt_regs *regs,
unsigned long addr,
unsigned long type_ctx);
extern void sun4v_data_access_exception(struct pt_regs *regs,
unsigned long addr,
unsigned long type_ctx);
extern void sun4v_data_access_exception_tl1(struct pt_regs *regs,
unsigned long addr,
unsigned long type_ctx);
extern void sun4v_resum_error(struct pt_regs *regs,
unsigned long offset);
extern void sun4v_resum_overflow(struct pt_regs *regs);
extern void sun4v_nonresum_error(struct pt_regs *regs,
unsigned long offset);
extern void sun4v_nonresum_overflow(struct pt_regs *regs);
extern unsigned long sun4v_err_itlb_vaddr;
extern unsigned long sun4v_err_itlb_ctx;
extern unsigned long sun4v_err_itlb_pte;
extern unsigned long sun4v_err_itlb_error;
extern void sun4v_itlb_error_report(struct pt_regs *regs, int tl);
extern unsigned long sun4v_err_dtlb_vaddr;
extern unsigned long sun4v_err_dtlb_ctx;
extern unsigned long sun4v_err_dtlb_pte;
extern unsigned long sun4v_err_dtlb_error;
extern void sun4v_dtlb_error_report(struct pt_regs *regs, int tl);
extern void hypervisor_tlbop_error(unsigned long err,
unsigned long op);
extern void hypervisor_tlbop_error_xcall(unsigned long err,
unsigned long op);
/* WARNING: The error trap handlers in assembly know the precise
* layout of the following structure.
*
* C-level handlers in traps.c use this information to log the
* error and then determine how to recover (if possible).
*/
struct cheetah_err_info {
/*0x00*/u64 afsr;
/*0x08*/u64 afar;
/* D-cache state */
/*0x10*/u64 dcache_data[4]; /* The actual data */
/*0x30*/u64 dcache_index; /* D-cache index */
/*0x38*/u64 dcache_tag; /* D-cache tag/valid */
/*0x40*/u64 dcache_utag; /* D-cache microtag */
/*0x48*/u64 dcache_stag; /* D-cache snooptag */
/* I-cache state */
/*0x50*/u64 icache_data[8]; /* The actual insns + predecode */
/*0x90*/u64 icache_index; /* I-cache index */
/*0x98*/u64 icache_tag; /* I-cache phys tag */
/*0xa0*/u64 icache_utag; /* I-cache microtag */
/*0xa8*/u64 icache_stag; /* I-cache snooptag */
/*0xb0*/u64 icache_upper; /* I-cache upper-tag */
/*0xb8*/u64 icache_lower; /* I-cache lower-tag */
/* E-cache state */
/*0xc0*/u64 ecache_data[4]; /* 32 bytes from staging registers */
/*0xe0*/u64 ecache_index; /* E-cache index */
/*0xe8*/u64 ecache_tag; /* E-cache tag/state */
/*0xf0*/u64 __pad[32 - 30];
};
#define CHAFSR_INVALID ((u64)-1L)
/* This is allocated at boot time based upon the largest hardware
* cpu ID in the system. We allocate two entries per cpu, one for
* TL==0 logging and one for TL >= 1 logging.
*/
extern struct cheetah_err_info *cheetah_error_log;
[SPARC64]: Fix sparse warnings in arch/sparc64/kernel/irq.c Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-26 15:37:51 +08:00
/* UPA nodes send interrupt packet to UltraSparc with first data reg
* value low 5 (7 on Starfire) bits holding the IRQ identifier being
* delivered. We must translate this into a non-vector IRQ so we can
* set the softint on this cpu.
*
* To make processing these packets efficient and race free we use
* an array of irq buckets below. The interrupt vector handler in
* entry.S feeds incoming packets into per-cpu pil-indexed lists.
*
* If you make changes to ino_bucket, please update hand coded assembler
* of the vectored interrupt trap handler(s) in entry.S and sun4v_ivec.S
*/
struct ino_bucket {
/*0x00*/unsigned long __irq_chain_pa;
sparc64: rename virt_irq => irq - I The generic irq support uses the term 'irq' for the allocated irq number. Fix it so sparc64 use the same term for an irq as the generic irq support does. For a naive reader this is less confusing. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-22 19:32:19 +08:00
/* Interrupt number assigned to this INO. */
/*0x08*/unsigned int __irq;
[SPARC64]: Fix sparse warnings in arch/sparc64/kernel/irq.c Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-26 15:37:51 +08:00
/*0x0c*/unsigned int __pad;
};
extern struct ino_bucket *ivector_table;
extern unsigned long ivector_table_pa;
extern void init_irqwork_curcpu(void);
sparc: delete __cpuinit/__CPUINIT usage from all users The __cpuinit type of throwaway sections might have made sense some time ago when RAM was more constrained, but now the savings do not offset the cost and complications. For example, the fix in commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time") is a good example of the nasty type of bugs that can be created with improper use of the various __init prefixes. After a discussion on LKML[1] it was decided that cpuinit should go the way of devinit and be phased out. Once all the users are gone, we can then finally remove the macros themselves from linux/init.h. Note that some harmless section mismatch warnings may result, since notify_cpu_starting() and cpu_up() are arch independent (kernel/cpu.c) are flagged as __cpuinit -- so if we remove the __cpuinit from arch specific callers, we will also get section mismatch warnings. As an intermediate step, we intend to turn the linux/init.h cpuinit content into no-ops as early as possible, since that will get rid of these warnings. In any case, they are temporary and harmless. This removes all the arch/sparc uses of the __cpuinit macros from C files and removes __CPUINIT from assembly files. Note that even though arch/sparc/kernel/trampoline_64.S has instances of ".previous" in it, they are all paired off against explicit ".section" directives, and not implicitly paired with __CPUINIT (unlike mips and arm were). [1] https://lkml.org/lkml/2013/5/20/589 Cc: "David S. Miller" <davem@davemloft.net> Cc: sparclinux@vger.kernel.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2013-06-18 03:43:14 +08:00
extern void sun4v_register_mondo_queues(int this_cpu);
[SPARC64]: Fix sparse warnings in arch/sparc64/kernel/irq.c Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-26 15:37:51 +08:00
sparc: fix sparse warnings in traps_32.c o add decalrations to entry.h for functions only used from assembler o add declaratiosn to kernel.h for functions only used from .c o removed unused functions/extern declarations Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-08 17:04:59 +08:00
#endif /* CONFIG_SPARC32 */
[SPARC64]: Fix sparse warnings in arch/sparc64/kernel/{cpu,setup}.c We create a local header file entry.h, under arch/sparc64/kernel/, that we can use to declare routines either defined in assembler or only invoked from assembler. As well as other data objects which are private to the inner sparc64 kernel arch code. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-26 12:51:40 +08:00
#endif /* _ENTRY_H */