Date: Fri, 12 Mar 2010 17:15:45 +0000 (UTC) From: Nathan Whitehorn <nwhitehorn@FreeBSD.org> To: src-committers@freebsd.org, svn-src-projects@freebsd.org Subject: svn commit: r205087 - in projects/ppc64/sys/powerpc: aim include Message-ID: <201003121715.o2CHFjLN062135@svn.freebsd.org>
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Author: nwhitehorn Date: Fri Mar 12 17:15:44 2010 New Revision: 205087 URL: http://svn.freebsd.org/changeset/base/205087 Log: Move USER_ADDR into high memory, too. With the exception of possible OF mappings, all memory below 2^32 is now used for direct mapped quantities only, paving the way for a large-page direct map in this region, and removing assumptions about where physical memory happens to have been mapped. Modified: projects/ppc64/sys/powerpc/aim/copyinout.c projects/ppc64/sys/powerpc/aim/trap.c projects/ppc64/sys/powerpc/include/sr.h projects/ppc64/sys/powerpc/include/vmparam.h Modified: projects/ppc64/sys/powerpc/aim/copyinout.c ============================================================================== --- projects/ppc64/sys/powerpc/aim/copyinout.c Fri Mar 12 16:08:52 2010 (r205086) +++ projects/ppc64/sys/powerpc/aim/copyinout.c Fri Mar 12 17:15:44 2010 (r205087) @@ -82,7 +82,7 @@ set_user_sr(pmap_t pm, const void *addr) { register_t esid, vsid, slb1, slb2; - esid = USER_SR; + esid = USER_ADDR >> ADDR_SR_SHFT; PMAP_LOCK(pm); vsid = va_to_vsid(pm, (vm_offset_t)addr); PMAP_UNLOCK(pm); @@ -245,7 +245,7 @@ subyte(void *addr, int byte) td = PCPU_GET(curthread); pm = &td->td_proc->p_vmspace->vm_pmap; - p = (char *)((uintptr_t)USER_ADDR + ((uintptr_t)addr & ~SEGMENT_MASK)); + p = (char *)(USER_ADDR + ((uintptr_t)addr & ~SEGMENT_MASK)); if (setfault(env)) { td->td_pcb->pcb_onfault = NULL; @@ -271,7 +271,7 @@ suword32(void *addr, int word) td = PCPU_GET(curthread); pm = &td->td_proc->p_vmspace->vm_pmap; - p = (int *)((uintptr_t)USER_ADDR + ((uintptr_t)addr & ~SEGMENT_MASK)); + p = (int *)(USER_ADDR + ((uintptr_t)addr & ~SEGMENT_MASK)); if (setfault(env)) { td->td_pcb->pcb_onfault = NULL; @@ -297,7 +297,7 @@ suword(void *addr, long word) td = PCPU_GET(curthread); pm = &td->td_proc->p_vmspace->vm_pmap; - p = (long *)((uintptr_t)USER_ADDR + ((uintptr_t)addr & ~SEGMENT_MASK)); + p = (long *)(USER_ADDR + ((uintptr_t)addr & ~SEGMENT_MASK)); if (setfault(env)) { td->td_pcb->pcb_onfault = NULL; @@ -337,8 +337,7 @@ fubyte(const void *addr) td = PCPU_GET(curthread); pm = &td->td_proc->p_vmspace->vm_pmap; - p = (u_char *)((uintptr_t)USER_ADDR + - ((uintptr_t)addr & ~SEGMENT_MASK)); + p = (u_char *)(USER_ADDR + ((uintptr_t)addr & ~SEGMENT_MASK)); if (setfault(env)) { td->td_pcb->pcb_onfault = NULL; @@ -364,7 +363,7 @@ fuword32(const void *addr) td = PCPU_GET(curthread); pm = &td->td_proc->p_vmspace->vm_pmap; - p = (int32_t *)((uintptr_t)USER_ADDR + ((uintptr_t)addr & ~SEGMENT_MASK)); + p = (int32_t *)(USER_ADDR + ((uintptr_t)addr & ~SEGMENT_MASK)); if (setfault(env)) { td->td_pcb->pcb_onfault = NULL; @@ -390,7 +389,7 @@ fuword(const void *addr) td = PCPU_GET(curthread); pm = &td->td_proc->p_vmspace->vm_pmap; - p = (long *)((uintptr_t)USER_ADDR + ((uintptr_t)addr & ~SEGMENT_MASK)); + p = (long *)(USER_ADDR + ((uintptr_t)addr & ~SEGMENT_MASK)); if (setfault(env)) { td->td_pcb->pcb_onfault = NULL; @@ -423,8 +422,7 @@ casuword32(volatile uint32_t *addr, uint td = PCPU_GET(curthread); pm = &td->td_proc->p_vmspace->vm_pmap; - p = (uint32_t *)((uintptr_t)USER_ADDR + - ((uintptr_t)addr & ~SEGMENT_MASK)); + p = (uint32_t *)(USER_ADDR + ((uintptr_t)addr & ~SEGMENT_MASK)); set_user_sr(pm,(const void *)(vm_offset_t)addr); @@ -469,8 +467,7 @@ casuword(volatile u_long *addr, u_long o td = PCPU_GET(curthread); pm = &td->td_proc->p_vmspace->vm_pmap; - p = (u_long *)((uintptr_t)USER_ADDR + - ((uintptr_t)addr & ~SEGMENT_MASK)); + p = (u_long *)(USER_ADDR + ((uintptr_t)addr & ~SEGMENT_MASK)); set_user_sr(pm,(const void *)(vm_offset_t)addr); Modified: projects/ppc64/sys/powerpc/aim/trap.c ============================================================================== --- projects/ppc64/sys/powerpc/aim/trap.c Fri Mar 12 16:08:52 2010 (r205086) +++ projects/ppc64/sys/powerpc/aim/trap.c Fri Mar 12 17:15:44 2010 (r205087) @@ -560,7 +560,7 @@ trap_pfault(struct trapframe *frame, int if (user) { map = &p->p_vmspace->vm_map; } else { - if ((eva >> ADDR_SR_SHFT) == USER_SR) { + if ((eva >> ADDR_SR_SHFT) == (USER_ADDR >> ADDR_SR_SHFT)) { if (p->p_vmspace == NULL) return (SIGSEGV); Modified: projects/ppc64/sys/powerpc/include/sr.h ============================================================================== --- projects/ppc64/sys/powerpc/include/sr.h Fri Mar 12 16:08:52 2010 (r205086) +++ projects/ppc64/sys/powerpc/include/sr.h Fri Mar 12 17:15:44 2010 (r205087) @@ -50,7 +50,11 @@ #define KERNEL_SEGMENT (0xfffff0 + KERNEL_SR) #define KERNEL2_SEGMENT (0xfffff0 + KERNEL2_SR) #define EMPTY_SEGMENT 0xfffff0 -#define USER_ADDR ((void *)((register_t)USER_SR << ADDR_SR_SHFT)) +#ifdef __powerpc64__ +#define USER_ADDR 0xcffffffff0000000UL +#else +#define USER_ADDR ((uintptr_t)USER_SR << ADDR_SR_SHFT) +#endif #define SEGMENT_LENGTH 0x10000000UL #define SEGMENT_INVMASK 0x0fffffffUL #define SEGMENT_MASK ~SEGMENT_INVMASK Modified: projects/ppc64/sys/powerpc/include/vmparam.h ============================================================================== --- projects/ppc64/sys/powerpc/include/vmparam.h Fri Mar 12 16:08:52 2010 (r205086) +++ projects/ppc64/sys/powerpc/include/vmparam.h Fri Mar 12 17:15:44 2010 (r205087) @@ -100,7 +100,7 @@ #ifdef __powerpc64__ #define VM_MIN_KERNEL_ADDRESS 0xc000000000000000UL -#define VM_MAX_KERNEL_ADDRESS 0xcfffffffffffffffUL +#define VM_MAX_KERNEL_ADDRESS 0xcfffffffefffffffUL #define VM_MAX_SAFE_KERNEL_ADDRESS VM_MAX_KERNEL_ADDRESS #else #define VM_MIN_KERNEL_ADDRESS ((vm_offset_t)KERNEL_SR << ADDR_SR_SHFT)
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