From 6b7448eb85442851c12d3cecd7b2159e2f74448b Mon Sep 17 00:00:00 2001 From: niklas Date: Wed, 2 Apr 1997 22:08:07 +0000 Subject: [PATCH] Better implementation of buf_space_*_raw_multi_* that deals well with unaligned buffers --- sys/arch/alpha/include/bus.h | 76 +++++++++++++--------- sys/arch/alpha/pci/pcs_bus_io_common.c | 83 ++++++++++++++++++++++++- sys/arch/alpha/pci/pcs_bus_mem_common.c | 83 ++++++++++++++++++++++++- sys/arch/alpha/tc/tc_bus_mem.c | 80 +++++++++++++++++++++++- 4 files changed, 291 insertions(+), 31 deletions(-) diff --git a/sys/arch/alpha/include/bus.h b/sys/arch/alpha/include/bus.h index 01a2cb5a259..1a5189833ab 100644 --- a/sys/arch/alpha/include/bus.h +++ b/sys/arch/alpha/include/bus.h @@ -1,4 +1,4 @@ -/* $OpenBSD: bus.h,v 1.6 1997/03/21 00:16:32 niklas Exp $ */ +/* $OpenBSD: bus.h,v 1.7 1997/04/02 22:08:07 niklas Exp $ */ /* $NetBSD: bus.h,v 1.10 1996/12/02 22:19:32 cgd Exp $ */ /* @@ -155,6 +155,24 @@ struct alpha_bus_space { bus_space_handle_t, bus_size_t, bus_size_t)); void (*abs_c_8) __P((void *, bus_space_handle_t, bus_size_t, bus_space_handle_t, bus_size_t, bus_size_t)); + + /* OpenBSD extensions follows */ + + /* read multiple raw */ + void (*abs_rrm_2) __P((void *, bus_space_handle_t, + bus_size_t, u_int8_t *, bus_size_t)); + void (*abs_rrm_4) __P((void *, bus_space_handle_t, + bus_size_t, u_int8_t *, bus_size_t)); + void (*abs_rrm_8) __P((void *, bus_space_handle_t, + bus_size_t, u_int8_t *, bus_size_t)); + + /* write multiple raw */ + void (*abs_wrm_2) __P((void *, bus_space_handle_t, + bus_size_t, const u_int8_t *, bus_size_t)); + void (*abs_wrm_4) __P((void *, bus_space_handle_t, + bus_size_t, const u_int8_t *, bus_size_t)); + void (*abs_wrm_8) __P((void *, bus_space_handle_t, + bus_size_t, const u_int8_t *, bus_size_t)); }; @@ -168,11 +186,14 @@ struct alpha_bus_space { (*(t)->__abs_opname(r,sz))((t)->abs_cookie, h, o) #define __abs_ws(sz, t, h, o, v) \ (*(t)->__abs_opname(w,sz))((t)->abs_cookie, h, o, v) -#ifndef DEBUG #define __abs_nonsingle(type, sz, t, h, o, a, c) \ (*(t)->__abs_opname(type,sz))((t)->abs_cookie, h, o, a, c) +#ifndef DEBUG +#define __abs_aligned_nonsingle(type, sz, t, h, o, a, c) \ + __abs_nonsingle((type), (sz), (t), (h), (o), (a), (c)) + #else -#define __abs_nonsingle(type, sz, t, h, o, a, c) \ +#define __abs_aligend_nonsingle(type, sz, t, h, o, a, c) \ do { \ if (((unsigned long)a & (sz - 1)) != 0) \ panic("bus non-single %d-byte unaligned (to %p) at %s:%d", \ @@ -185,7 +206,6 @@ struct alpha_bus_space { #define __abs_copy(sz, t, h1, o1, h2, o2, cnt) \ (*(t)->__abs_opname(c,sz))((t)->abs_cookie, h1, o1, h2, o2, cnt) - /* * Mapping and unmapping operations. */ @@ -232,11 +252,11 @@ struct alpha_bus_space { #define bus_space_read_multi_1(t, h, o, a, c) \ __abs_nonsingle(rm,1,(t),(h),(o),(a),(c)) #define bus_space_read_multi_2(t, h, o, a, c) \ - __abs_nonsingle(rm,2,(t),(h),(o),(a),(c)) + __abs_aligned_nonsingle(rm,2,(t),(h),(o),(a),(c)) #define bus_space_read_multi_4(t, h, o, a, c) \ - __abs_nonsingle(rm,4,(t),(h),(o),(a),(c)) + __abs_aligned_nonsingle(rm,4,(t),(h),(o),(a),(c)) #define bus_space_read_multi_8(t, h, o, a, c) \ - __abs_nonsingle(rm,8,(t),(h),(o),(a),(c)) + __abs_aligned_nonsingle(rm,8,(t),(h),(o),(a),(c)) /* @@ -250,12 +270,12 @@ struct alpha_bus_space { * possible byte-swapping should be done by these functions. */ -#define bus_space_read_raw_multi_2(t, h, o, a, c) \ - bus_space_read_multi_2((t), (h), (o), (u_int16_t *)(a), (c) >> 1) -#define bus_space_read_raw_multi_4(t, h, o, a, c) \ - bus_space_read_multi_4((t), (h), (o), (u_int32_t *)(a), (c) >> 2) -#define bus_space_read_raw_multi_8(t, h, o, a, c) \ - bus_space_read_multi_8((t), (h), (o), (u_int64_t *)(a), (c) >> 4) +#define bus_space_read_raw_multi_2(t, h, o, a, c) \ + __abs_nonsingle(rrm,2,(t),(h),(o),(a),(c)) +#define bus_space_read_raw_multi_4(t, h, o, a, c) \ + __abs_nonsingle(rrm,4,(t),(h),(o),(a),(c)) +#define bus_space_read_raw_multi_8(t, h, o, a, c) \ + __abs_nonsingle(rrm,8,(t),(h),(o),(a),(c)) /* * Bus read region operations. @@ -263,11 +283,11 @@ struct alpha_bus_space { #define bus_space_read_region_1(t, h, o, a, c) \ __abs_nonsingle(rr,1,(t),(h),(o),(a),(c)) #define bus_space_read_region_2(t, h, o, a, c) \ - __abs_nonsingle(rr,2,(t),(h),(o),(a),(c)) + __abs_aligned_nonsingle(rr,2,(t),(h),(o),(a),(c)) #define bus_space_read_region_4(t, h, o, a, c) \ - __abs_nonsingle(rr,4,(t),(h),(o),(a),(c)) + __abs_aligned_nonsingle(rr,4,(t),(h),(o),(a),(c)) #define bus_space_read_region_8(t, h, o, a, c) \ - __abs_nonsingle(rr,8,(t),(h),(o),(a),(c)) + __abs_aligned_nonsingle(rr,8,(t),(h),(o),(a),(c)) /* @@ -285,11 +305,11 @@ struct alpha_bus_space { #define bus_space_write_multi_1(t, h, o, a, c) \ __abs_nonsingle(wm,1,(t),(h),(o),(a),(c)) #define bus_space_write_multi_2(t, h, o, a, c) \ - __abs_nonsingle(wm,2,(t),(h),(o),(a),(c)) + __abs_aligned_nonsingle(wm,2,(t),(h),(o),(a),(c)) #define bus_space_write_multi_4(t, h, o, a, c) \ - __abs_nonsingle(wm,4,(t),(h),(o),(a),(c)) + __abs_aligned_nonsingle(wm,4,(t),(h),(o),(a),(c)) #define bus_space_write_multi_8(t, h, o, a, c) \ - __abs_nonsingle(wm,8,(t),(h),(o),(a),(c)) + __abs_aligned_nonsingle(wm,8,(t),(h),(o),(a),(c)) /* * void bus_space_write_raw_multi_N __P((bus_space_tag_t tag, @@ -302,12 +322,12 @@ struct alpha_bus_space { * possible byte-swapping should be done by these functions. */ -#define bus_space_write_raw_multi_2(t, h, o, a, c) \ - bus_space_write_multi_2((t), (h), (o), (u_int16_t *)(a), (c) >> 1) -#define bus_space_write_raw_multi_4(t, h, o, a, c) \ - bus_space_write_multi_4((t), (h), (o), (u_int32_t *)(a), (c) >> 2) -#define bus_space_write_raw_multi_8(t, h, o, a, c) \ - bus_space_write_multi_8((t), (h), (o), (u_int64_t *)(a), (c) >> 4) +#define bus_space_write_raw_multi_2(t, h, o, a, c) \ + __abs_nonsingle(wrm,2,(t),(h),(o),(a),(c)) +#define bus_space_write_raw_multi_4(t, h, o, a, c) \ + __abs_nonsingle(wrm,4,(t),(h),(o),(a),(c)) +#define bus_space_write_raw_multi_8(t, h, o, a, c) \ + __abs_nonsingle(wrm,8,(t),(h),(o),(a),(c)) /* * Bus write region operations. @@ -315,11 +335,11 @@ struct alpha_bus_space { #define bus_space_write_region_1(t, h, o, a, c) \ __abs_nonsingle(wr,1,(t),(h),(o),(a),(c)) #define bus_space_write_region_2(t, h, o, a, c) \ - __abs_nonsingle(wr,2,(t),(h),(o),(a),(c)) + __abs_aligned_nonsingle(wr,2,(t),(h),(o),(a),(c)) #define bus_space_write_region_4(t, h, o, a, c) \ - __abs_nonsingle(wr,4,(t),(h),(o),(a),(c)) + __abs_aligned_nonsingle(wr,4,(t),(h),(o),(a),(c)) #define bus_space_write_region_8(t, h, o, a, c) \ - __abs_nonsingle(wr,8,(t),(h),(o),(a),(c)) + __abs_aligned_nonsingle(wr,8,(t),(h),(o),(a),(c)) /* diff --git a/sys/arch/alpha/pci/pcs_bus_io_common.c b/sys/arch/alpha/pci/pcs_bus_io_common.c index 89cc1418cd1..f393cd2e7ef 100644 --- a/sys/arch/alpha/pci/pcs_bus_io_common.c +++ b/sys/arch/alpha/pci/pcs_bus_io_common.c @@ -1,4 +1,4 @@ -/* $OpenBSD: pcs_bus_io_common.c,v 1.5 1997/01/24 19:57:55 niklas Exp $ */ +/* $OpenBSD: pcs_bus_io_common.c,v 1.6 1997/04/02 22:08:09 niklas Exp $ */ /* $NetBSD: pcs_bus_io_common.c,v 1.14 1996/12/02 22:19:35 cgd Exp $ */ /* @@ -151,6 +151,25 @@ void __C(CHIP,_io_copy_4) __P((void *, bus_space_handle_t, void __C(CHIP,_io_copy_8) __P((void *, bus_space_handle_t, bus_size_t, bus_space_handle_t, bus_size_t, bus_size_t)); +/* read multiple raw */ +void __C(CHIP,_io_read_raw_multi_2) __P((void *, bus_space_handle_t, + bus_size_t, u_int8_t *, bus_size_t)); +void __C(CHIP,_io_read_raw_multi_4) __P((void *, bus_space_handle_t, + bus_size_t, u_int8_t *, bus_size_t)); +void __C(CHIP,_io_read_raw_multi_8) __P((void *, bus_space_handle_t, + bus_size_t, u_int8_t *, bus_size_t)); + +/* write multiple raw */ +void __C(CHIP,_io_write_raw_multi_2) __P((void *, + bus_space_handle_t, bus_size_t, const u_int8_t *, + bus_size_t)); +void __C(CHIP,_io_write_raw_multi_4) __P((void *, + bus_space_handle_t, bus_size_t, const u_int8_t *, + bus_size_t)); +void __C(CHIP,_io_write_raw_multi_8) __P((void *, + bus_space_handle_t, bus_size_t, const u_int8_t *, + bus_size_t)); + static long __C(CHIP,_io_ex_storage)[EXTENT_FIXED_STORAGE_SIZE(8) / sizeof(long)]; @@ -223,6 +242,16 @@ static struct alpha_bus_space __C(CHIP,_io_space) = { __C(CHIP,_io_copy_2), __C(CHIP,_io_copy_4), __C(CHIP,_io_copy_8), + + /* read multiple raw */ + __C(CHIP,_io_read_raw_multi_2), + __C(CHIP,_io_read_raw_multi_4), + __C(CHIP,_io_read_raw_multi_8), + + /* write multiple raw*/ + __C(CHIP,_io_write_raw_multi_2), + __C(CHIP,_io_write_raw_multi_4), + __C(CHIP,_io_write_raw_multi_8), }; bus_space_tag_t @@ -716,3 +745,55 @@ CHIP_io_copy_N(1) CHIP_io_copy_N(2) CHIP_io_copy_N(4) CHIP_io_copy_N(8) + +#define CHIP_io_read_raw_multi_N(BYTES,TYPE) \ +void \ +__C(__C(CHIP,_io_read_raw_multi_),BYTES)(v, h, o, a, c) \ + void *v; \ + bus_space_handle_t h; \ + bus_size_t o, c; \ + u_int8_t *a; \ +{ \ + TYPE temp; \ + int i; \ + \ + while (c > 0) { \ + __C(CHIP,_io_barrier)(v, h, o, BYTES, BUS_BARRIER_READ); \ + temp = __C(__C(CHIP,_io_read_),BYTES)(v, h, o); \ + for (i = 0; i < BYTES; i++) { \ + *a++ = temp & 0xff; \ + temp >>= 8; \ + } \ + c -= BYTES; \ + } \ +} +CHIP_io_read_raw_multi_N(2,u_int16_t) +CHIP_io_read_raw_multi_N(4,u_int32_t) +CHIP_io_read_raw_multi_N(8,u_int64_t) + +#define CHIP_io_write_raw_multi_N(BYTES,TYPE) \ +void \ +__C(__C(CHIP,_io_write_raw_multi_),BYTES)(v, h, o, a, c) \ + void *v; \ + bus_space_handle_t h; \ + bus_size_t o, c; \ + const u_int8_t *a; \ +{ \ + TYPE temp; \ + int i; \ + \ + while (c > 0) { \ + temp = 0; \ + for (i = BYTES - 1; i >= 0; i--) { \ + temp <<= 8; \ + temp |= *(a + i); \ + } \ + __C(__C(CHIP,_io_write_),BYTES)(v, h, o, temp); \ + __C(CHIP,_io_barrier)(v, h, o, BYTES, BUS_BARRIER_WRITE); \ + c -= BYTES; \ + a += BYTES; \ + } \ +} +CHIP_io_write_raw_multi_N(2,u_int16_t) +CHIP_io_write_raw_multi_N(4,u_int32_t) +CHIP_io_write_raw_multi_N(8,u_int64_t) diff --git a/sys/arch/alpha/pci/pcs_bus_mem_common.c b/sys/arch/alpha/pci/pcs_bus_mem_common.c index 44d0c90cf2f..0cd2f784206 100644 --- a/sys/arch/alpha/pci/pcs_bus_mem_common.c +++ b/sys/arch/alpha/pci/pcs_bus_mem_common.c @@ -1,4 +1,4 @@ -/* $OpenBSD: pcs_bus_mem_common.c,v 1.5 1997/01/24 19:57:56 niklas Exp $ */ +/* $OpenBSD: pcs_bus_mem_common.c,v 1.6 1997/04/02 22:08:09 niklas Exp $ */ /* $NetBSD: pcs_bus_mem_common.c,v 1.15 1996/12/02 22:19:36 cgd Exp $ */ /* @@ -152,6 +152,25 @@ void __C(CHIP,_mem_copy_4) __P((void *, bus_space_handle_t, void __C(CHIP,_mem_copy_8) __P((void *, bus_space_handle_t, bus_size_t, bus_space_handle_t, bus_size_t, bus_size_t)); +/* read multiple raw */ +void __C(CHIP,_mem_read_raw_multi_2) __P((void *, + bus_space_handle_t, bus_size_t, u_int8_t *, bus_size_t)); +void __C(CHIP,_mem_read_raw_multi_4) __P((void *, + bus_space_handle_t, bus_size_t, u_int8_t *, bus_size_t)); +void __C(CHIP,_mem_read_raw_multi_8) __P((void *, + bus_space_handle_t, bus_size_t, u_int8_t *, bus_size_t)); + +/* write multiple raw */ +void __C(CHIP,_mem_write_raw_multi_2) __P((void *, + bus_space_handle_t, bus_size_t, const u_int8_t *, + bus_size_t)); +void __C(CHIP,_mem_write_raw_multi_4) __P((void *, + bus_space_handle_t, bus_size_t, const u_int8_t *, + bus_size_t)); +void __C(CHIP,_mem_write_raw_multi_8) __P((void *, + bus_space_handle_t, bus_size_t, const u_int8_t *, + bus_size_t)); + static long __C(CHIP,_dmem_ex_storage)[EXTENT_FIXED_STORAGE_SIZE(8) / sizeof(long)]; static long @@ -226,6 +245,16 @@ static struct alpha_bus_space __C(CHIP,_mem_space) = { __C(CHIP,_mem_copy_2), __C(CHIP,_mem_copy_4), __C(CHIP,_mem_copy_8), + + /* read multiple raw */ + __C(CHIP,_mem_read_raw_multi_2), + __C(CHIP,_mem_read_raw_multi_4), + __C(CHIP,_mem_read_raw_multi_8), + + /* write multiple raw*/ + __C(CHIP,_mem_write_raw_multi_2), + __C(CHIP,_mem_write_raw_multi_4), + __C(CHIP,_mem_write_raw_multi_8), }; bus_space_tag_t @@ -983,3 +1012,55 @@ CHIP_mem_copy_N(1) CHIP_mem_copy_N(2) CHIP_mem_copy_N(4) CHIP_mem_copy_N(8) + +#define CHIP_mem_read_raw_multi_N(BYTES,TYPE) \ +void \ +__C(__C(CHIP,_mem_read_raw_multi_),BYTES)(v, h, o, a, c) \ + void *v; \ + bus_space_handle_t h; \ + bus_size_t o, c; \ + u_int8_t *a; \ +{ \ + TYPE temp; \ + int i; \ + \ + while (c > 0) { \ + __C(CHIP,_mem_barrier)(v, h, o, BYTES, BUS_BARRIER_READ); \ + temp = __C(__C(CHIP,_mem_read_),BYTES)(v, h, o); \ + for (i = 0; i < BYTES; i++) { \ + *a++ = temp & 0xff; \ + temp >>= 8; \ + } \ + c -= BYTES; \ + } \ +} +CHIP_mem_read_raw_multi_N(2,u_int16_t) +CHIP_mem_read_raw_multi_N(4,u_int32_t) +CHIP_mem_read_raw_multi_N(8,u_int64_t) + +#define CHIP_mem_write_raw_multi_N(BYTES,TYPE) \ +void \ +__C(__C(CHIP,_mem_write_raw_multi_),BYTES)(v, h, o, a, c) \ + void *v; \ + bus_space_handle_t h; \ + bus_size_t o, c; \ + const u_int8_t *a; \ +{ \ + TYPE temp; \ + int i; \ + \ + while (c > 0) { \ + temp = 0; \ + for (i = BYTES - 1; i >= 0; i--) { \ + temp <<= 8; \ + temp |= *(a + i); \ + } \ + __C(__C(CHIP,_mem_write_),BYTES)(v, h, o, temp); \ + __C(CHIP,_mem_barrier)(v, h, o, BYTES, BUS_BARRIER_WRITE); \ + c -= BYTES; \ + a += BYTES; \ + } \ +} +CHIP_mem_write_raw_multi_N(2,u_int16_t) +CHIP_mem_write_raw_multi_N(4,u_int32_t) +CHIP_mem_write_raw_multi_N(8,u_int64_t) diff --git a/sys/arch/alpha/tc/tc_bus_mem.c b/sys/arch/alpha/tc/tc_bus_mem.c index 4d901513410..79740b2dc08 100644 --- a/sys/arch/alpha/tc/tc_bus_mem.c +++ b/sys/arch/alpha/tc/tc_bus_mem.c @@ -1,4 +1,4 @@ -/* $OpenBSD: tc_bus_mem.c,v 1.6 1997/01/24 19:58:19 niklas Exp $ */ +/* $OpenBSD: tc_bus_mem.c,v 1.7 1997/04/02 22:08:10 niklas Exp $ */ /* $NetBSD: tc_bus_mem.c,v 1.13 1996/12/02 22:19:34 cgd Exp $ */ /* @@ -145,6 +145,22 @@ void tc_mem_copy_4 __P((void *, bus_space_handle_t, void tc_mem_copy_8 __P((void *, bus_space_handle_t, bus_size_t, bus_space_handle_t, bus_size_t, bus_size_t)); +/* read multiple raw */ +void tc_mem_read_raw_multi_2 __P((void *, bus_space_handle_t, + bus_size_t, u_int8_t *, bus_size_t)); +void tc_mem_read_raw_multi_4 __P((void *, bus_space_handle_t, + bus_size_t, u_int8_t *, bus_size_t)); +void tc_mem_read_raw_multi_8 __P((void *, bus_space_handle_t, + bus_size_t, u_int8_t *, bus_size_t)); + +/* write multiple raw */ +void tc_mem_write_raw_multi_2 __P((void *, bus_space_handle_t, + bus_size_t, const u_int8_t *, bus_size_t)); +void tc_mem_write_raw_multi_4 __P((void *, bus_space_handle_t, + bus_size_t, const u_int8_t *, bus_size_t)); +void tc_mem_write_raw_multi_8 __P((void *, bus_space_handle_t, + bus_size_t, const u_int8_t *, bus_size_t)); + static struct alpha_bus_space tc_mem_space = { /* cookie */ NULL, @@ -214,6 +230,16 @@ static struct alpha_bus_space tc_mem_space = { tc_mem_copy_2, tc_mem_copy_4, tc_mem_copy_8, + + /* write multiple raw */ + tc_mem_read_raw_multi_2, + tc_mem_read_raw_multi_4, + tc_mem_read_raw_multi_8, + + /* write multiple raw*/ + tc_mem_write_raw_multi_2, + tc_mem_write_raw_multi_4, + tc_mem_write_raw_multi_8, }; bus_space_tag_t @@ -612,3 +638,55 @@ tc_mem_copy_N(1) tc_mem_copy_N(2) tc_mem_copy_N(4) tc_mem_copy_N(8) + +#define tc_mem_read_raw_multi_N(BYTES,TYPE) \ +void \ +__C(tc_mem_read_raw_multi_,BYTES)(v, h, o, a, c) \ + void *v; \ + bus_space_handle_t h; \ + bus_size_t o, c; \ + u_int8_t *a; \ +{ \ + TYPE temp; \ + int i; \ + \ + while (c > 0) { \ + tc_mem_barrier(v, h, o, BYTES, BUS_BARRIER_READ); \ + temp = __C(tc_mem_read_,BYTES)(v, h, o); \ + for (i = 0; i < BYTES; i++) { \ + *a++ = temp & 0xff; \ + temp >>= 8; \ + } \ + c -= BYTES; \ + } \ +} +tc_mem_read_raw_multi_N(2,u_int16_t) +tc_mem_read_raw_multi_N(4,u_int32_t) +tc_mem_read_raw_multi_N(8,u_int64_t) + +#define tc_mem_write_raw_multi_N(BYTES,TYPE) \ +void \ +__C(tc_mem_write_raw_multi_,BYTES)(v, h, o, a, c) \ + void *v; \ + bus_space_handle_t h; \ + bus_size_t o, c; \ + const u_int8_t *a; \ +{ \ + TYPE temp; \ + int i; \ + \ + while (c > 0) { \ + temp = 0; \ + for (i = BYTES - 1; i >= 0; i--) { \ + temp <<= 8; \ + temp |= *(a + i); \ + } \ + __C(tc_mem_write_,BYTES)(v, h, o, temp); \ + tc_mem_barrier(v, h, o, BYTES, BUS_BARRIER_WRITE); \ + c -= BYTES; \ + a += BYTES; \ + } \ +} +tc_mem_write_raw_multi_N(2,u_int16_t) +tc_mem_write_raw_multi_N(4,u_int32_t) +tc_mem_write_raw_multi_N(8,u_int64_t) -- 2.20.1