-/* $OpenBSD: machdep.c,v 1.165 2014/12/10 15:29:53 mikeb Exp $ */
+/* $OpenBSD: machdep.c,v 1.166 2015/01/20 18:34:00 mpi Exp $ */
/* $NetBSD: machdep.c,v 1.4 1996/10/16 19:33:11 ws Exp $ */
/*
intr_disestablish_t *disestablish);
void *ppc_intr_establish(void *lcv, pci_intr_handle_t ih, int type,
int level, int (*func)(void *), void *arg, const char *name);
-int bus_mem_add_mapping(bus_addr_t bpa, bus_size_t size, int flags,
- bus_space_handle_t *bshp);
-bus_addr_t bus_space_unmap_p(bus_space_tag_t t, bus_space_handle_t bsh,
- bus_size_t size);
-void bus_space_unmap(bus_space_tag_t t, bus_space_handle_t bsh,
- bus_size_t size);
/*
(*intr_send_ipi_func)(ci, id);
}
-
-/* BUS functions */
-int
-bus_space_map(bus_space_tag_t t, bus_addr_t bpa, bus_size_t size,
- int flags, bus_space_handle_t *bshp)
-{
- int error;
-
- if (POWERPC_BUS_TAG_BASE(t) == 0) {
- /* if bus has base of 0 fail. */
- return EINVAL;
- }
- bpa |= POWERPC_BUS_TAG_BASE(t);
- if ((error = extent_alloc_region(devio_ex, bpa, size, EX_NOWAIT |
- (ppc_malloc_ok ? EX_MALLOCOK : 0))))
- return error;
-
- if ((error = bus_mem_add_mapping(bpa, size, flags, bshp))) {
- if (extent_free(devio_ex, bpa, size, EX_NOWAIT |
- (ppc_malloc_ok ? EX_MALLOCOK : 0)))
- {
- printf("bus_space_map: pa 0x%lx, size 0x%lx\n",
- bpa, size);
- printf("bus_space_map: can't free region\n");
- }
- }
- return error;
-}
-bus_addr_t
-bus_space_unmap_p(bus_space_tag_t t, bus_space_handle_t bsh, bus_size_t size)
-{
- bus_addr_t paddr;
-
- pmap_extract(pmap_kernel(), bsh, &paddr);
- bus_space_unmap((t), (bsh), (size));
- return paddr ;
-}
-void
-bus_space_unmap(bus_space_tag_t t, bus_space_handle_t bsh, bus_size_t size)
-{
- bus_addr_t sva;
- bus_size_t off, len;
- bus_addr_t bpa;
-
- /* should this verify that the proper size is freed? */
- sva = trunc_page(bsh);
- off = bsh - sva;
- len = size+off;
-
- if (pmap_extract(pmap_kernel(), sva, &bpa) == TRUE) {
- if (extent_free(devio_ex, bpa | (bsh & PAGE_MASK), size, EX_NOWAIT |
- (ppc_malloc_ok ? EX_MALLOCOK : 0)))
- {
- printf("bus_space_map: pa 0x%lx, size 0x%lx\n",
- bpa, size);
- printf("bus_space_map: can't free region\n");
- }
- }
- /* do not free memory which was stolen from the vm system */
- if (ppc_malloc_ok &&
- ((sva >= VM_MIN_KERNEL_ADDRESS) && (sva < VM_MAX_KERNEL_ADDRESS)))
- uvm_km_free(kernel_map, sva, len);
- else {
- pmap_remove(pmap_kernel(), sva, sva + len);
- pmap_update(pmap_kernel());
- }
-}
-
-paddr_t
-bus_space_mmap(bus_space_tag_t t, bus_addr_t bpa, off_t off, int prot,
- int flags)
-{
- int pmapflags = PMAP_NOCACHE;
-
- if (POWERPC_BUS_TAG_BASE(t) == 0)
- return (-1);
-
- bpa |= POWERPC_BUS_TAG_BASE(t);
-
- if (flags & BUS_SPACE_MAP_CACHEABLE)
- pmapflags &= ~PMAP_NOCACHE;
-
- return ((bpa + off) | pmapflags);
-}
-
-vaddr_t ppc_kvm_stolen = VM_KERN_ADDRESS_SIZE;
-
-int
-bus_mem_add_mapping(bus_addr_t bpa, bus_size_t size, int flags,
- bus_space_handle_t *bshp)
-{
- bus_addr_t vaddr;
- bus_addr_t spa, epa;
- bus_size_t off;
- int len;
-
- spa = trunc_page(bpa);
- epa = bpa + size;
- off = bpa - spa;
- len = size+off;
-
-#if 0
- if (epa <= spa) {
- panic("bus_mem_add_mapping: overflow");
- }
-#endif
- if (ppc_malloc_ok == 0) {
- bus_size_t alloc_size;
-
- /* need to steal vm space before kernel vm is initialized */
- alloc_size = round_page(len);
-
- vaddr = VM_MIN_KERNEL_ADDRESS + ppc_kvm_stolen;
- ppc_kvm_stolen += alloc_size;
- if (ppc_kvm_stolen > PPC_SEGMENT_LENGTH) {
- panic("ppc_kvm_stolen, out of space");
- }
- } else {
- vaddr = uvm_km_valloc(kernel_map, len);
- if (vaddr == 0)
- return (ENOMEM);
- }
- *bshp = vaddr + off;
-#ifdef DEBUG_BUS_MEM_ADD_MAPPING
- printf("mapping %x size %x to %x vbase %x\n",
- bpa, size, *bshp, spa);
-#endif
- for (; len > 0; len -= PAGE_SIZE) {
- pmap_kenter_cache(vaddr, spa, PROT_READ | PROT_WRITE,
- (flags & BUS_SPACE_MAP_CACHEABLE) ?
- PMAP_CACHE_WT : PMAP_CACHE_CI);
- spa += PAGE_SIZE;
- vaddr += PAGE_SIZE;
- }
- return 0;
-}
-
-int
-bus_space_alloc(bus_space_tag_t tag, bus_addr_t rstart, bus_addr_t rend,
- bus_size_t size, bus_size_t alignment, bus_size_t boundary, int flags,
- bus_addr_t *addrp, bus_space_handle_t *handlep)
-{
-
- panic("bus_space_alloc: unimplemented");
-}
-
-void
-bus_space_free(bus_space_tag_t tag, bus_space_handle_t handle, bus_size_t size)
-{
-
- panic("bus_space_free: unimplemented");
-}
-
-void *
-mapiodev(paddr_t pa, psize_t len)
-{
- paddr_t spa;
- vaddr_t vaddr, va;
- int off;
- int size;
-
- spa = trunc_page(pa);
- off = pa - spa;
- size = round_page(off+len);
- if (ppc_malloc_ok == 0) {
- /* need to steal vm space before kernel vm is initialized */
- va = VM_MIN_KERNEL_ADDRESS + ppc_kvm_stolen;
- ppc_kvm_stolen += size;
- if (ppc_kvm_stolen > PPC_SEGMENT_LENGTH) {
- panic("ppc_kvm_stolen, out of space");
- }
- } else {
- va = uvm_km_valloc(kernel_map, size);
- }
-
- if (va == 0)
- return NULL;
-
- for (vaddr = va; size > 0; size -= PAGE_SIZE) {
- pmap_kenter_cache(vaddr, spa,
- PROT_READ | PROT_WRITE, PMAP_CACHE_DEFAULT);
- spa += PAGE_SIZE;
- vaddr += PAGE_SIZE;
- }
- return (void *) (va+off);
-}
-void
-unmapiodev(void *kva, psize_t p_size)
-{
- vaddr_t vaddr;
- int size;
-
- size = p_size;
-
- vaddr = trunc_page((vaddr_t)kva);
-
- uvm_km_free(kernel_map, vaddr, size);
-
- for (; size > 0; size -= PAGE_SIZE) {
- pmap_remove(pmap_kernel(), vaddr, vaddr + PAGE_SIZE - 1);
- vaddr += PAGE_SIZE;
- }
- pmap_update(pmap_kernel());
-}
-
-
-
-/*
- * probably should be ppc_space_copy
- */
-
-#define _CONCAT(A,B) A ## B
-#define __C(A,B) _CONCAT(A,B)
-
-#define BUS_SPACE_COPY_N(BYTES,TYPE) \
-void \
-__C(bus_space_copy_,BYTES)(void *v, bus_space_handle_t h1, \
- bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, \
- bus_size_t c) \
-{ \
- TYPE *src, *dst; \
- int i; \
- \
- src = (TYPE *) (h1+o1); \
- dst = (TYPE *) (h2+o2); \
- \
- if (h1 == h2 && o2 > o1) \
- for (i = c-1; i >= 0; i--) \
- dst[i] = src[i]; \
- else \
- for (i = 0; i < c; i++) \
- dst[i] = src[i]; \
-}
-BUS_SPACE_COPY_N(1,u_int8_t)
-BUS_SPACE_COPY_N(2,u_int16_t)
-BUS_SPACE_COPY_N(4,u_int32_t)
-
-void
-bus_space_set_region_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
- u_int8_t val, bus_size_t c)
-{
- u_int8_t *dst;
- int i;
-
- dst = (u_int8_t *) (h+o);
-
- for (i = 0; i < c; i++)
- dst[i] = val;
-}
-
-void
-bus_space_set_region_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
- u_int16_t val, bus_size_t c)
-{
- u_int16_t *dst;
- int i;
-
- dst = (u_int16_t *) (h+o);
- val = swap16(val);
-
- for (i = 0; i < c; i++)
- dst[i] = val;
-}
-void
-bus_space_set_region_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
- u_int32_t val, bus_size_t c)
-{
- u_int32_t *dst;
- int i;
-
- dst = (u_int32_t *) (h+o);
- val = swap32(val);
-
- for (i = 0; i < c; i++)
- dst[i] = val;
-}
-
-#define BUS_SPACE_READ_RAW_MULTI_N(BYTES,SHIFT,TYPE) \
-void \
-__C(bus_space_read_raw_multi_,BYTES)(bus_space_tag_t bst, \
- bus_space_handle_t h, bus_addr_t o, u_int8_t *dst, bus_size_t size) \
-{ \
- TYPE *src; \
- TYPE *rdst = (TYPE *)dst; \
- int i; \
- int count = size >> SHIFT; \
- \
- src = (TYPE *)(h+o); \
- for (i = 0; i < count; i++) { \
- rdst[i] = *src; \
- __asm__("eieio"); \
- } \
-}
-BUS_SPACE_READ_RAW_MULTI_N(2,1,u_int16_t)
-BUS_SPACE_READ_RAW_MULTI_N(4,2,u_int32_t)
-
-#define BUS_SPACE_WRITE_RAW_MULTI_N(BYTES,SHIFT,TYPE) \
-void \
-__C(bus_space_write_raw_multi_,BYTES)( bus_space_tag_t bst, \
- bus_space_handle_t h, bus_addr_t o, const u_int8_t *src, \
- bus_size_t size) \
-{ \
- int i; \
- TYPE *dst; \
- TYPE *rsrc = (TYPE *)src; \
- int count = size >> SHIFT; \
- \
- dst = (TYPE *)(h+o); \
- for (i = 0; i < count; i++) { \
- *dst = rsrc[i]; \
- __asm__("eieio"); \
- } \
-}
-
-BUS_SPACE_WRITE_RAW_MULTI_N(2,1,u_int16_t)
-BUS_SPACE_WRITE_RAW_MULTI_N(4,2,u_int32_t)
-
-int
-bus_space_subregion(bus_space_tag_t t, bus_space_handle_t bsh,
- bus_size_t offset, bus_size_t size, bus_space_handle_t *nbshp)
-{
- *nbshp = bsh + offset;
- return (0);
-}
-
/* bcopy(), error on fault */
int
kcopy(const void *from, void *to, size_t size)
-# $OpenBSD: files.powerpc,v 1.49 2015/01/20 17:08:35 mpi Exp $
+# $OpenBSD: files.powerpc,v 1.50 2015/01/20 18:34:00 mpi Exp $
#
file arch/powerpc/powerpc/setjmp.S ddb
file arch/powerpc/powerpc/fpu.c
file arch/powerpc/powerpc/in_cksum.c inet
file arch/powerpc/powerpc/bus_dma.c
+file arch/powerpc/powerpc/bus_space.c
file arch/powerpc/powerpc/pmap.c
file arch/powerpc/powerpc/process_machdep.c
file arch/powerpc/powerpc/sys_machdep.c
--- /dev/null
+/* $OpenBSD: bus_space.c,v 1.1 2015/01/20 18:34:00 mpi Exp $ */
+/* $NetBSD: machdep.c,v 1.4 1996/10/16 19:33:11 ws Exp $ */
+
+/*
+ * Copyright (C) 1995, 1996 Wolfgang Solfrank.
+ * Copyright (C) 1995, 1996 TooLs GmbH.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by TooLs GmbH.
+ * 4. The name of TooLs GmbH may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/malloc.h>
+#include <sys/extent.h>
+
+#include <uvm/uvm_extern.h>
+
+#include <machine/bus.h>
+
+extern int ppc_malloc_ok;
+extern struct extent *devio_ex;
+
+int bus_mem_add_mapping(bus_addr_t, bus_size_t, int, bus_space_handle_t *);
+bus_addr_t bus_space_unmap_p(bus_space_tag_t, bus_space_handle_t, bus_size_t);
+void bus_space_unmap(bus_space_tag_t, bus_space_handle_t, bus_size_t);
+
+
+/* BUS functions */
+int
+bus_space_map(bus_space_tag_t t, bus_addr_t bpa, bus_size_t size,
+ int flags, bus_space_handle_t *bshp)
+{
+ int error;
+
+ if (POWERPC_BUS_TAG_BASE(t) == 0) {
+ /* if bus has base of 0 fail. */
+ return EINVAL;
+ }
+ bpa |= POWERPC_BUS_TAG_BASE(t);
+ if ((error = extent_alloc_region(devio_ex, bpa, size, EX_NOWAIT |
+ (ppc_malloc_ok ? EX_MALLOCOK : 0))))
+ return error;
+
+ if ((error = bus_mem_add_mapping(bpa, size, flags, bshp))) {
+ if (extent_free(devio_ex, bpa, size, EX_NOWAIT |
+ (ppc_malloc_ok ? EX_MALLOCOK : 0)))
+ {
+ printf("bus_space_map: pa 0x%lx, size 0x%lx\n",
+ bpa, size);
+ printf("bus_space_map: can't free region\n");
+ }
+ }
+ return error;
+}
+
+bus_addr_t
+bus_space_unmap_p(bus_space_tag_t t, bus_space_handle_t bsh, bus_size_t size)
+{
+ bus_addr_t paddr;
+
+ pmap_extract(pmap_kernel(), bsh, &paddr);
+ bus_space_unmap((t), (bsh), (size));
+ return paddr ;
+}
+
+void
+bus_space_unmap(bus_space_tag_t t, bus_space_handle_t bsh, bus_size_t size)
+{
+ bus_addr_t sva;
+ bus_size_t off, len;
+ bus_addr_t bpa;
+
+ /* should this verify that the proper size is freed? */
+ sva = trunc_page(bsh);
+ off = bsh - sva;
+ len = size+off;
+
+ if (pmap_extract(pmap_kernel(), sva, &bpa) == TRUE) {
+ if (extent_free(devio_ex, bpa | (bsh & PAGE_MASK), size, EX_NOWAIT |
+ (ppc_malloc_ok ? EX_MALLOCOK : 0)))
+ {
+ printf("bus_space_map: pa 0x%lx, size 0x%lx\n",
+ bpa, size);
+ printf("bus_space_map: can't free region\n");
+ }
+ }
+ /* do not free memory which was stolen from the vm system */
+ if (ppc_malloc_ok &&
+ ((sva >= VM_MIN_KERNEL_ADDRESS) && (sva < VM_MAX_KERNEL_ADDRESS)))
+ uvm_km_free(kernel_map, sva, len);
+ else {
+ pmap_remove(pmap_kernel(), sva, sva + len);
+ pmap_update(pmap_kernel());
+ }
+}
+
+paddr_t
+bus_space_mmap(bus_space_tag_t t, bus_addr_t bpa, off_t off, int prot,
+ int flags)
+{
+ int pmapflags = PMAP_NOCACHE;
+
+ if (POWERPC_BUS_TAG_BASE(t) == 0)
+ return (-1);
+
+ bpa |= POWERPC_BUS_TAG_BASE(t);
+
+ if (flags & BUS_SPACE_MAP_CACHEABLE)
+ pmapflags &= ~PMAP_NOCACHE;
+
+ return ((bpa + off) | pmapflags);
+}
+
+vaddr_t ppc_kvm_stolen = VM_KERN_ADDRESS_SIZE;
+
+int
+bus_mem_add_mapping(bus_addr_t bpa, bus_size_t size, int flags,
+ bus_space_handle_t *bshp)
+{
+ bus_addr_t vaddr;
+ bus_addr_t spa, epa;
+ bus_size_t off;
+ int len;
+
+ spa = trunc_page(bpa);
+ epa = bpa + size;
+ off = bpa - spa;
+ len = size+off;
+
+#if 0
+ if (epa <= spa) {
+ panic("bus_mem_add_mapping: overflow");
+ }
+#endif
+ if (ppc_malloc_ok == 0) {
+ bus_size_t alloc_size;
+
+ /* need to steal vm space before kernel vm is initialized */
+ alloc_size = round_page(len);
+
+ vaddr = VM_MIN_KERNEL_ADDRESS + ppc_kvm_stolen;
+ ppc_kvm_stolen += alloc_size;
+ if (ppc_kvm_stolen > PPC_SEGMENT_LENGTH) {
+ panic("ppc_kvm_stolen, out of space");
+ }
+ } else {
+ vaddr = uvm_km_valloc(kernel_map, len);
+ if (vaddr == 0)
+ return (ENOMEM);
+ }
+ *bshp = vaddr + off;
+#ifdef DEBUG_BUS_MEM_ADD_MAPPING
+ printf("mapping %x size %x to %x vbase %x\n",
+ bpa, size, *bshp, spa);
+#endif
+ for (; len > 0; len -= PAGE_SIZE) {
+ pmap_kenter_cache(vaddr, spa, PROT_READ | PROT_WRITE,
+ (flags & BUS_SPACE_MAP_CACHEABLE) ?
+ PMAP_CACHE_WT : PMAP_CACHE_CI);
+ spa += PAGE_SIZE;
+ vaddr += PAGE_SIZE;
+ }
+ return 0;
+}
+
+int
+bus_space_alloc(bus_space_tag_t tag, bus_addr_t rstart, bus_addr_t rend,
+ bus_size_t size, bus_size_t alignment, bus_size_t boundary, int flags,
+ bus_addr_t *addrp, bus_space_handle_t *handlep)
+{
+
+ panic("bus_space_alloc: unimplemented");
+}
+
+void
+bus_space_free(bus_space_tag_t tag, bus_space_handle_t handle, bus_size_t size)
+{
+
+ panic("bus_space_free: unimplemented");
+}
+
+void *
+mapiodev(paddr_t pa, psize_t len)
+{
+ paddr_t spa;
+ vaddr_t vaddr, va;
+ int off;
+ int size;
+
+ spa = trunc_page(pa);
+ off = pa - spa;
+ size = round_page(off+len);
+ if (ppc_malloc_ok == 0) {
+ /* need to steal vm space before kernel vm is initialized */
+ va = VM_MIN_KERNEL_ADDRESS + ppc_kvm_stolen;
+ ppc_kvm_stolen += size;
+ if (ppc_kvm_stolen > PPC_SEGMENT_LENGTH) {
+ panic("ppc_kvm_stolen, out of space");
+ }
+ } else {
+ va = uvm_km_valloc(kernel_map, size);
+ }
+
+ if (va == 0)
+ return NULL;
+
+ for (vaddr = va; size > 0; size -= PAGE_SIZE) {
+ pmap_kenter_cache(vaddr, spa,
+ PROT_READ | PROT_WRITE, PMAP_CACHE_DEFAULT);
+ spa += PAGE_SIZE;
+ vaddr += PAGE_SIZE;
+ }
+ return (void *) (va+off);
+}
+
+void
+unmapiodev(void *kva, psize_t p_size)
+{
+ vaddr_t vaddr;
+ int size;
+
+ size = p_size;
+
+ vaddr = trunc_page((vaddr_t)kva);
+
+ uvm_km_free(kernel_map, vaddr, size);
+
+ for (; size > 0; size -= PAGE_SIZE) {
+ pmap_remove(pmap_kernel(), vaddr, vaddr + PAGE_SIZE - 1);
+ vaddr += PAGE_SIZE;
+ }
+ pmap_update(pmap_kernel());
+}
+
+
+/*
+ * probably should be ppc_space_copy
+ */
+
+#define _CONCAT(A,B) A ## B
+#define __C(A,B) _CONCAT(A,B)
+
+#define BUS_SPACE_COPY_N(BYTES,TYPE) \
+void \
+__C(bus_space_copy_,BYTES)(void *v, bus_space_handle_t h1, \
+ bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, \
+ bus_size_t c) \
+{ \
+ TYPE *src, *dst; \
+ int i; \
+ \
+ src = (TYPE *) (h1+o1); \
+ dst = (TYPE *) (h2+o2); \
+ \
+ if (h1 == h2 && o2 > o1) \
+ for (i = c-1; i >= 0; i--) \
+ dst[i] = src[i]; \
+ else \
+ for (i = 0; i < c; i++) \
+ dst[i] = src[i]; \
+}
+BUS_SPACE_COPY_N(1,u_int8_t)
+BUS_SPACE_COPY_N(2,u_int16_t)
+BUS_SPACE_COPY_N(4,u_int32_t)
+
+void
+bus_space_set_region_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
+ u_int8_t val, bus_size_t c)
+{
+ u_int8_t *dst;
+ int i;
+
+ dst = (u_int8_t *) (h+o);
+
+ for (i = 0; i < c; i++)
+ dst[i] = val;
+}
+
+void
+bus_space_set_region_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
+ u_int16_t val, bus_size_t c)
+{
+ u_int16_t *dst;
+ int i;
+
+ dst = (u_int16_t *) (h+o);
+ val = swap16(val);
+
+ for (i = 0; i < c; i++)
+ dst[i] = val;
+}
+void
+bus_space_set_region_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
+ u_int32_t val, bus_size_t c)
+{
+ u_int32_t *dst;
+ int i;
+
+ dst = (u_int32_t *) (h+o);
+ val = swap32(val);
+
+ for (i = 0; i < c; i++)
+ dst[i] = val;
+}
+
+#define BUS_SPACE_READ_RAW_MULTI_N(BYTES,SHIFT,TYPE) \
+void \
+__C(bus_space_read_raw_multi_,BYTES)(bus_space_tag_t bst, \
+ bus_space_handle_t h, bus_addr_t o, u_int8_t *dst, bus_size_t size) \
+{ \
+ TYPE *src; \
+ TYPE *rdst = (TYPE *)dst; \
+ int i; \
+ int count = size >> SHIFT; \
+ \
+ src = (TYPE *)(h+o); \
+ for (i = 0; i < count; i++) { \
+ rdst[i] = *src; \
+ __asm__("eieio"); \
+ } \
+}
+BUS_SPACE_READ_RAW_MULTI_N(2,1,u_int16_t)
+BUS_SPACE_READ_RAW_MULTI_N(4,2,u_int32_t)
+
+#define BUS_SPACE_WRITE_RAW_MULTI_N(BYTES,SHIFT,TYPE) \
+void \
+__C(bus_space_write_raw_multi_,BYTES)( bus_space_tag_t bst, \
+ bus_space_handle_t h, bus_addr_t o, const u_int8_t *src, \
+ bus_size_t size) \
+{ \
+ int i; \
+ TYPE *dst; \
+ TYPE *rsrc = (TYPE *)src; \
+ int count = size >> SHIFT; \
+ \
+ dst = (TYPE *)(h+o); \
+ for (i = 0; i < count; i++) { \
+ *dst = rsrc[i]; \
+ __asm__("eieio"); \
+ } \
+}
+
+BUS_SPACE_WRITE_RAW_MULTI_N(2,1,u_int16_t)
+BUS_SPACE_WRITE_RAW_MULTI_N(4,2,u_int32_t)
+
+int
+bus_space_subregion(bus_space_tag_t t, bus_space_handle_t bsh,
+ bus_size_t offset, bus_size_t size, bus_space_handle_t *nbshp)
+{
+ *nbshp = bsh + offset;
+ return (0);
+}
-/* $OpenBSD: machdep.c,v 1.61 2015/01/04 13:01:42 mpi Exp $ */
+/* $OpenBSD: machdep.c,v 1.62 2015/01/20 18:34:00 mpi Exp $ */
/* $NetBSD: machdep.c,v 1.4 1996/10/16 19:33:11 ws Exp $ */
/*
int lcsplx(int ipl);
void myetheraddr(u_char *);
-int bus_mem_add_mapping(bus_addr_t, bus_size_t, int, bus_space_handle_t *);
-bus_addr_t bus_space_unmap_p(bus_space_tag_t, bus_space_handle_t, bus_size_t);
-void bus_space_unmap(bus_space_tag_t, bus_space_handle_t, bus_size_t);
-
/*
* Extent maps to manage I/O. Allocate storage for 8 regions in each,
* initially. Later devio_malloc_safe will indicate that it's safe to
return spllower(ipl);
}
-/* BUS functions */
-int
-bus_space_map(bus_space_tag_t t, bus_addr_t bpa, bus_size_t size,
- int flags, bus_space_handle_t *bshp)
-{
- int error;
-
- if (POWERPC_BUS_TAG_BASE(t) == 0) {
- /* if bus has base of 0 fail. */
- return EINVAL;
- }
- bpa |= POWERPC_BUS_TAG_BASE(t);
- if ((error = extent_alloc_region(devio_ex, bpa, size, EX_NOWAIT |
- (ppc_malloc_ok ? EX_MALLOCOK : 0))))
- return error;
-
- if ((error = bus_mem_add_mapping(bpa, size, flags, bshp))) {
- if (extent_free(devio_ex, bpa, size, EX_NOWAIT |
- (ppc_malloc_ok ? EX_MALLOCOK : 0)))
- {
- printf("bus_space_map: pa 0x%lx, size 0x%lx\n",
- bpa, size);
- printf("bus_space_map: can't free region\n");
- }
- }
- return 0;
-}
-
-bus_addr_t
-bus_space_unmap_p(bus_space_tag_t t, bus_space_handle_t bsh, bus_size_t size)
-{
- bus_addr_t paddr;
-
- pmap_extract(pmap_kernel(), bsh, &paddr);
- bus_space_unmap((t), (bsh), (size));
- return paddr ;
-}
-
-void
-bus_space_unmap(bus_space_tag_t t, bus_space_handle_t bsh, bus_size_t size)
-{
- bus_addr_t sva;
- bus_size_t off, len;
- bus_addr_t bpa;
-
- /* should this verify that the proper size is freed? */
- sva = trunc_page(bsh);
- off = bsh - sva;
- len = size+off;
-
- if (pmap_extract(pmap_kernel(), sva, &bpa) == TRUE) {
- if (extent_free(devio_ex, bpa | (bsh & PAGE_MASK), size, EX_NOWAIT |
- (ppc_malloc_ok ? EX_MALLOCOK : 0)))
- {
- printf("bus_space_map: pa 0x%lx, size 0x%lx\n",
- bpa, size);
- printf("bus_space_map: can't free region\n");
- }
- }
- /* do not free memory which was stolen from the vm system */
- if (ppc_malloc_ok &&
- ((sva >= VM_MIN_KERNEL_ADDRESS) && (sva < VM_MAX_KERNEL_ADDRESS)))
- uvm_km_free(phys_map, sva, len);
- else {
- pmap_remove(pmap_kernel(), sva, sva+len);
- pmap_update(pmap_kernel());
- }
-}
-
-vaddr_t ppc_kvm_stolen = VM_KERN_ADDRESS_SIZE;
-
-int
-bus_mem_add_mapping(bus_addr_t bpa, bus_size_t size, int flags,
- bus_space_handle_t *bshp)
-{
- bus_addr_t vaddr;
- bus_addr_t spa, epa;
- bus_size_t off;
- int len;
-
- spa = trunc_page(bpa);
- epa = bpa + size;
- off = bpa - spa;
- len = size+off;
-
-#if 0
- if (epa <= spa) {
- panic("bus_mem_add_mapping: overflow");
- }
-#endif
- if (ppc_malloc_ok == 0) {
- bus_size_t alloc_size;
-
- /* need to steal vm space before kernel vm is initialized */
- alloc_size = round_page(len);
-
- vaddr = VM_MIN_KERNEL_ADDRESS + ppc_kvm_stolen;
- ppc_kvm_stolen += alloc_size;
- if (ppc_kvm_stolen > PPC_SEGMENT_LENGTH) {
- panic("ppc_kvm_stolen, out of space");
- }
- } else {
- vaddr = uvm_km_kmemalloc(phys_map, NULL, len,
- UVM_KMF_NOWAIT|UVM_KMF_VALLOC);
- if (vaddr == 0)
- return (ENOMEM);
- }
- *bshp = vaddr + off;
-#ifdef DEBUG_BUS_MEM_ADD_MAPPING
- printf("mapping %x size %x to %x vbase %x\n",
- bpa, size, *bshp, spa);
-#endif
- for (; len > 0; len -= PAGE_SIZE) {
- pmap_kenter_cache(vaddr, spa, PROT_READ | PROT_WRITE,
- (flags & BUS_SPACE_MAP_CACHEABLE) ?
- PMAP_CACHE_WT : PMAP_CACHE_CI);
- spa += PAGE_SIZE;
- vaddr += PAGE_SIZE;
- }
- return 0;
-}
-
-int
-bus_space_alloc(bus_space_tag_t tag, bus_addr_t rstart, bus_addr_t rend,
- bus_size_t size, bus_size_t alignment, bus_size_t boundary, int flags,
- bus_addr_t *addrp, bus_space_handle_t *handlep)
-{
-
- panic("bus_space_alloc: unimplemented");
-}
-
-void
-bus_space_free(bus_space_tag_t tag, bus_space_handle_t handle, bus_size_t size)
-{
-
- panic("bus_space_free: unimplemented");
-}
-
-void *
-mapiodev(paddr_t pa, psize_t len)
-{
- paddr_t spa;
- vaddr_t vaddr, va;
- int off;
- int size;
-
- spa = trunc_page(pa);
- off = pa - spa;
- size = round_page(off+len);
- if (ppc_malloc_ok == 0) {
- /* need to steal vm space before kernel vm is initialized */
- va = VM_MIN_KERNEL_ADDRESS + ppc_kvm_stolen;
- ppc_kvm_stolen += size;
- if (ppc_kvm_stolen > PPC_SEGMENT_LENGTH) {
- panic("ppc_kvm_stolen, out of space");
- }
- } else {
- va = uvm_km_kmemalloc(phys_map, NULL, size,
- UVM_KMF_NOWAIT|UVM_KMF_VALLOC);
- }
-
- if (va == 0)
- return NULL;
-
- for (vaddr = va; size > 0; size -= PAGE_SIZE) {
- pmap_kenter_cache(vaddr, spa,
- PROT_READ | PROT_WRITE, PMAP_CACHE_DEFAULT);
- spa += PAGE_SIZE;
- vaddr += PAGE_SIZE;
- }
- return (void *) (va+off);
-}
-
-void
-unmapiodev(void *kva, psize_t p_size)
-{
- vaddr_t vaddr;
- int size;
-
- size = p_size;
-
- vaddr = trunc_page((vaddr_t)kva);
-
- uvm_km_free_wakeup(phys_map, vaddr, size);
-
- for (; size > 0; size -= PAGE_SIZE) {
- pmap_remove(pmap_kernel(), vaddr, vaddr+PAGE_SIZE-1);
- vaddr += PAGE_SIZE;
- }
- pmap_update(pmap_kernel());
-}
-
-
-/*
- * probably should be ppc_space_copy
- */
-
-#define _CONCAT(A,B) A ## B
-#define __C(A,B) _CONCAT(A,B)
-
-#define BUS_SPACE_COPY_N(BYTES,TYPE) \
-void \
-__C(bus_space_copy_,BYTES)(void *v, bus_space_handle_t h1, \
- bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, \
- bus_size_t c) \
-{ \
- TYPE *src, *dst; \
- int i; \
- \
- src = (TYPE *) (h1+o1); \
- dst = (TYPE *) (h2+o2); \
- \
- if (h1 == h2 && o2 > o1) \
- for (i = c-1; i >= 0; i--) \
- dst[i] = src[i]; \
- else \
- for (i = 0; i < c; i++) \
- dst[i] = src[i]; \
-}
-BUS_SPACE_COPY_N(1,u_int8_t)
-BUS_SPACE_COPY_N(2,u_int16_t)
-BUS_SPACE_COPY_N(4,u_int32_t)
-
-void
-bus_space_set_region_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
- u_int8_t val, bus_size_t c)
-{
- u_int8_t *dst;
- int i;
-
- dst = (u_int8_t *) (h+o);
-
- for (i = 0; i < c; i++)
- dst[i] = val;
-}
-
-void
-bus_space_set_region_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
- u_int16_t val, bus_size_t c)
-{
- u_int16_t *dst;
- int i;
-
- dst = (u_int16_t *) (h+o);
- val = swap16(val);
-
- for (i = 0; i < c; i++)
- dst[i] = val;
-}
-void
-bus_space_set_region_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
- u_int32_t val, bus_size_t c)
-{
- u_int32_t *dst;
- int i;
-
- dst = (u_int32_t *) (h+o);
- val = swap32(val);
-
- for (i = 0; i < c; i++)
- dst[i] = val;
-}
-
-#define BUS_SPACE_READ_RAW_MULTI_N(BYTES,SHIFT,TYPE) \
-void \
-__C(bus_space_read_raw_multi_,BYTES)(bus_space_tag_t bst, \
- bus_space_handle_t h, bus_addr_t o, u_int8_t *dst, bus_size_t size) \
-{ \
- TYPE *src; \
- TYPE *rdst = (TYPE *)dst; \
- int i; \
- int count = size >> SHIFT; \
- \
- src = (TYPE *)(h+o); \
- for (i = 0; i < count; i++) { \
- rdst[i] = *src; \
- __asm__("eieio"); \
- } \
-}
-BUS_SPACE_READ_RAW_MULTI_N(2,1,u_int16_t)
-BUS_SPACE_READ_RAW_MULTI_N(4,2,u_int32_t)
-
-#define BUS_SPACE_WRITE_RAW_MULTI_N(BYTES,SHIFT,TYPE) \
-void \
-__C(bus_space_write_raw_multi_,BYTES)( bus_space_tag_t bst, \
- bus_space_handle_t h, bus_addr_t o, const u_int8_t *src, \
- bus_size_t size) \
-{ \
- int i; \
- TYPE *dst; \
- TYPE *rsrc = (TYPE *)src; \
- int count = size >> SHIFT; \
- \
- dst = (TYPE *)(h+o); \
- for (i = 0; i < count; i++) { \
- *dst = rsrc[i]; \
- __asm__("eieio"); \
- } \
-}
-
-BUS_SPACE_WRITE_RAW_MULTI_N(2,1,u_int16_t)
-BUS_SPACE_WRITE_RAW_MULTI_N(4,2,u_int32_t)
-
-int
-bus_space_subregion(bus_space_tag_t t, bus_space_handle_t bsh,
- bus_size_t offset, bus_size_t size, bus_space_handle_t *nbshp)
-{
- *nbshp = bsh + offset;
- return (0);
-}
-
/*
* Machine dependent startup code.
*/
projects / openbsd / commitdiff