Date: Wed, 27 Nov 2013 22:01:10 +0000 (UTC) From: Nathan Whitehorn <nwhitehorn@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r258696 - in head/sys/powerpc: aim booke powermac Message-ID: <201311272201.rARM1AP4059666@svn.freebsd.org>
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Author: nwhitehorn Date: Wed Nov 27 22:01:09 2013 New Revision: 258696 URL: http://svnweb.freebsd.org/changeset/base/258696 Log: badaddr() is used only in the grackle PCI driver, so move its definition there. Clean up a spurious setfault() declaration as well. Modified: head/sys/powerpc/aim/machdep.c head/sys/powerpc/aim/trap.c head/sys/powerpc/booke/trap.c head/sys/powerpc/powermac/grackle.c Modified: head/sys/powerpc/aim/machdep.c ============================================================================== --- head/sys/powerpc/aim/machdep.c Wed Nov 27 21:55:43 2013 (r258695) +++ head/sys/powerpc/aim/machdep.c Wed Nov 27 22:01:09 2013 (r258696) @@ -157,8 +157,6 @@ SYSCTL_INT(_machdep, CPU_CACHELINE, cach uintptr_t powerpc_init(vm_offset_t, vm_offset_t, vm_offset_t, void *); -int setfault(faultbuf); /* defined in locore.S */ - long Maxmem = 0; long realmem = 0; Modified: head/sys/powerpc/aim/trap.c ============================================================================== --- head/sys/powerpc/aim/trap.c Wed Nov 27 21:55:43 2013 (r258695) +++ head/sys/powerpc/aim/trap.c Wed Nov 27 22:01:09 2013 (r258696) @@ -87,12 +87,6 @@ static int handle_user_slb_spill(pmap_t extern int n_slbs; #endif -int setfault(faultbuf); /* defined in locore.S */ - -/* Why are these not defined in a header? */ -int badaddr(void *, size_t); -int badaddr_read(void *, size_t, int *); - struct powerpc_exception { u_int vector; char *name; @@ -690,59 +684,6 @@ trap_pfault(struct trapframe *frame, int return (SIGSEGV); } -int -badaddr(void *addr, size_t size) -{ - return (badaddr_read(addr, size, NULL)); -} - -int -badaddr_read(void *addr, size_t size, int *rptr) -{ - struct thread *td; - faultbuf env; - int x; - - /* Get rid of any stale machine checks that have been waiting. */ - __asm __volatile ("sync; isync"); - - td = curthread; - - if (setfault(env)) { - td->td_pcb->pcb_onfault = 0; - __asm __volatile ("sync"); - return 1; - } - - __asm __volatile ("sync"); - - switch (size) { - case 1: - x = *(volatile int8_t *)addr; - break; - case 2: - x = *(volatile int16_t *)addr; - break; - case 4: - x = *(volatile int32_t *)addr; - break; - default: - panic("badaddr: invalid size (%zd)", size); - } - - /* Make sure we took the machine check, if we caused one. */ - __asm __volatile ("sync; isync"); - - td->td_pcb->pcb_onfault = 0; - __asm __volatile ("sync"); /* To be sure. */ - - /* Use the value to avoid reorder. */ - if (rptr) - *rptr = x; - - return (0); -} - /* * For now, this only deals with the particular unaligned access case * that gcc tends to generate. Eventually it should handle all of the Modified: head/sys/powerpc/booke/trap.c ============================================================================== --- head/sys/powerpc/booke/trap.c Wed Nov 27 21:55:43 2013 (r258695) +++ head/sys/powerpc/booke/trap.c Wed Nov 27 22:01:09 2013 (r258696) @@ -87,12 +87,6 @@ static int fix_unaligned(struct thread * static int handle_onfault(struct trapframe *frame); static void syscall(struct trapframe *frame); -int setfault(faultbuf); /* defined in locore.S */ - -/* Why are these not defined in a header? */ -int badaddr(void *, size_t); -int badaddr_read(void *, size_t, int *); - struct powerpc_exception { u_int vector; char *name; @@ -461,60 +455,6 @@ trap_pfault(struct trapframe *frame, int return ((rv == KERN_PROTECTION_FAILURE) ? SIGBUS : SIGSEGV); } -int -badaddr(void *addr, size_t size) -{ - - return (badaddr_read(addr, size, NULL)); -} - -int -badaddr_read(void *addr, size_t size, int *rptr) -{ - struct thread *td; - faultbuf env; - int x; - - /* Get rid of any stale machine checks that have been waiting. */ - __asm __volatile ("sync; isync"); - - td = curthread; - - if (setfault(env)) { - td->td_pcb->pcb_onfault = 0; - __asm __volatile ("sync"); - return (1); - } - - __asm __volatile ("sync"); - - switch (size) { - case 1: - x = *(volatile int8_t *)addr; - break; - case 2: - x = *(volatile int16_t *)addr; - break; - case 4: - x = *(volatile int32_t *)addr; - break; - default: - panic("badaddr: invalid size (%d)", size); - } - - /* Make sure we took the machine check, if we caused one. */ - __asm __volatile ("sync; isync"); - - td->td_pcb->pcb_onfault = 0; - __asm __volatile ("sync"); /* To be sure. */ - - /* Use the value to avoid reorder. */ - if (rptr) - *rptr = x; - - return (0); -} - /* * For now, this only deals with the particular unaligned access case * that gcc tends to generate. Eventually it should handle all of the Modified: head/sys/powerpc/powermac/grackle.c ============================================================================== --- head/sys/powerpc/powermac/grackle.c Wed Nov 27 21:55:43 2013 (r258695) +++ head/sys/powerpc/powermac/grackle.c Wed Nov 27 22:01:09 2013 (r258696) @@ -34,6 +34,7 @@ __FBSDID("$FreeBSD$"); #include <sys/bus.h> #include <sys/conf.h> #include <sys/kernel.h> +#include <sys/proc.h> #include <dev/ofw/openfirm.h> #include <dev/ofw/ofw_pci.h> @@ -59,8 +60,6 @@ __FBSDID("$FreeBSD$"); #include "pcib_if.h" -int badaddr(void *, size_t); /* XXX */ - /* * Device interface. */ @@ -81,6 +80,9 @@ static void grackle_write_config(device static int grackle_enable_config(struct grackle_softc *, u_int, u_int, u_int, u_int); static void grackle_disable_config(struct grackle_softc *); +static int badaddr(void *, size_t); + +int setfault(faultbuf); /* defined in locore.S */ /* * Driver methods. @@ -238,6 +240,50 @@ grackle_disable_config(struct grackle_so out32rb(sc->sc_addr, 0); } +static int +badaddr(void *addr, size_t size) +{ + struct thread *td; + faultbuf env, *oldfaultbuf; + int x; + + /* Get rid of any stale machine checks that have been waiting. */ + __asm __volatile ("sync; isync"); + + td = curthread; + + oldfaultbuf = td->td_pcb->pcb_onfault; + if (setfault(env)) { + td->td_pcb->pcb_onfault = oldfaultbuf; + __asm __volatile ("sync"); + return 1; + } + + __asm __volatile ("sync"); + + switch (size) { + case 1: + x = *(volatile int8_t *)addr; + break; + case 2: + x = *(volatile int16_t *)addr; + break; + case 4: + x = *(volatile int32_t *)addr; + break; + default: + panic("badaddr: invalid size (%zd)", size); + } + + /* Make sure we took the machine check, if we caused one. */ + __asm __volatile ("sync; isync"); + + td->td_pcb->pcb_onfault = oldfaultbuf; + __asm __volatile ("sync"); /* To be sure. */ + + return (0); +} + /* * Driver to swallow Grackle host bridges from the PCI bus side. */
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