[rtems commit] i386: refactor libcpu/cpu.h into rtems/score/i386.h
Gedare Bloom
gedare at rtems.org
Thu Mar 3 21:43:04 UTC 2016
Module: rtems
Branch: master
Commit: 328bd350aa40bd6aff923cd2efd3c14d0c8e0ec4
Changeset: http://git.rtems.org/rtems/commit/?id=328bd350aa40bd6aff923cd2efd3c14d0c8e0ec4
Author: Joel Sherrill <joel at rtems.org>
Date: Sat Jan 23 13:06:22 2016 -0600
i386: refactor libcpu/cpu.h into rtems/score/i386.h
Fixes #2515.
---
c/src/lib/libbsp/i386/pc386/include/bsp.h | 2 +-
c/src/lib/libbsp/i386/shared/irq/idt.c | 2 +-
c/src/lib/libbsp/i386/shared/irq/irq_init.c | 2 +-
.../libbsp/i386/shared/realmode_int/realmode_int.h | 2 +-
c/src/lib/libbsp/i386/shared/smp/smp-imps.c | 2 +-
c/src/lib/libcpu/i386/Makefile.am | 4 +-
c/src/lib/libcpu/i386/cache.c | 4 +-
c/src/lib/libcpu/i386/cpu.h | 475 ---------------------
c/src/lib/libcpu/i386/displayCpu.c | 2 +-
c/src/lib/libcpu/i386/page.c | 3 +-
c/src/lib/libcpu/i386/page.h | 39 ++
c/src/lib/libcpu/i386/preinstall.am | 6 +-
cpukit/score/cpu/i386/rtems/score/cpu.h | 5 -
cpukit/score/cpu/i386/rtems/score/i386.h | 437 ++++++++++++++++++-
14 files changed, 477 insertions(+), 508 deletions(-)
diff --git a/c/src/lib/libbsp/i386/pc386/include/bsp.h b/c/src/lib/libbsp/i386/pc386/include/bsp.h
index cee5566..3d29e3e 100644
--- a/c/src/lib/libbsp/i386/pc386/include/bsp.h
+++ b/c/src/lib/libbsp/i386/pc386/include/bsp.h
@@ -57,7 +57,7 @@
#include <rtems/iosupp.h>
#include <rtems/console.h>
#include <rtems/clockdrv.h>
-#include <libcpu/cpu.h>
+#include <rtems/score/cpu.h>
#include <rtems/bspIo.h>
#ifdef __cplusplus
diff --git a/c/src/lib/libbsp/i386/shared/irq/idt.c b/c/src/lib/libbsp/i386/shared/irq/idt.c
index fc9364e..ee6f8e0 100644
--- a/c/src/lib/libbsp/i386/shared/irq/idt.c
+++ b/c/src/lib/libbsp/i386/shared/irq/idt.c
@@ -16,7 +16,7 @@
* http://www.rtems.org/license/LICENSE.
*/
-#include <libcpu/cpu.h>
+#include <rtems/score/cpu.h>
#include <bsp/irq.h>
static rtems_raw_irq_connect_data* raw_irq_table;
diff --git a/c/src/lib/libbsp/i386/shared/irq/irq_init.c b/c/src/lib/libbsp/i386/shared/irq/irq_init.c
index 9bf9bc5..fe8d7e7 100644
--- a/c/src/lib/libbsp/i386/shared/irq/irq_init.c
+++ b/c/src/lib/libbsp/i386/shared/irq/irq_init.c
@@ -16,7 +16,7 @@
#include <rtems/bspIo.h>
-#include <libcpu/cpu.h>
+#include <rtems/score/cpu.h>
#include <bsp.h>
#include <bsp/irq.h>
diff --git a/c/src/lib/libbsp/i386/shared/realmode_int/realmode_int.h b/c/src/lib/libbsp/i386/shared/realmode_int/realmode_int.h
index a6b067d..e8a1e36 100644
--- a/c/src/lib/libbsp/i386/shared/realmode_int/realmode_int.h
+++ b/c/src/lib/libbsp/i386/shared/realmode_int/realmode_int.h
@@ -23,7 +23,7 @@
#ifndef _REALMODE_INT_H
#define _REALMODE_INT_H
-#include <libcpu/cpu.h>
+#include <rtems/score/cpu.h>
#include <stdint.h>
#ifndef ASM /* ASM */
diff --git a/c/src/lib/libbsp/i386/shared/smp/smp-imps.c b/c/src/lib/libbsp/i386/shared/smp/smp-imps.c
index 158a45d..ca1a0f1 100644
--- a/c/src/lib/libbsp/i386/shared/smp/smp-imps.c
+++ b/c/src/lib/libbsp/i386/shared/smp/smp-imps.c
@@ -79,7 +79,7 @@
#include <unistd.h>
#include <rtems.h>
#include <rtems/bspIo.h>
-#include <libcpu/cpu.h>
+#include <rtems/score/cpu.h>
#include <assert.h>
extern void _pc386_delay(void);
diff --git a/c/src/lib/libcpu/i386/Makefile.am b/c/src/lib/libcpu/i386/Makefile.am
index 0869435..79797b5 100644
--- a/c/src/lib/libcpu/i386/Makefile.am
+++ b/c/src/lib/libcpu/i386/Makefile.am
@@ -6,7 +6,7 @@ include $(top_srcdir)/../../../automake/compile.am
include_libcpudir = $(includedir)/libcpu
-include_libcpu_HEADERS = cpu.h cpuModel.h
+include_libcpu_HEADERS = page.h cpuModel.h
include_libcpu_HEADERS += ../shared/include/cache.h
include_libcpu_HEADERS += byteorder.h
@@ -22,7 +22,7 @@ score_rel_CPPFLAGS = $(AM_CPPFLAGS)
score_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
noinst_PROGRAMS += page.rel
-page_rel_SOURCES = page.c cpu.h
+page_rel_SOURCES = page.c page.h
page_rel_CPPFLAGS = $(AM_CPPFLAGS)
page_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
diff --git a/c/src/lib/libcpu/i386/cache.c b/c/src/lib/libcpu/i386/cache.c
index 66657ab..da31a38 100644
--- a/c/src/lib/libcpu/i386/cache.c
+++ b/c/src/lib/libcpu/i386/cache.c
@@ -3,9 +3,9 @@
*/
#include <rtems.h>
-#include <rtems/score/registers.h>
#include "cache_.h"
-#include <libcpu/cpu.h>
+#include <rtems/score/cpu.h>
+#include <libcpu/page.h>
void _CPU_disable_cache(void)
{
diff --git a/c/src/lib/libcpu/i386/cpu.h b/c/src/lib/libcpu/i386/cpu.h
deleted file mode 100644
index c0c4756..0000000
--- a/c/src/lib/libcpu/i386/cpu.h
+++ /dev/null
@@ -1,475 +0,0 @@
-/*
- * @file cpu.h
- *
- * This file contains definitions for data structure related
- * to Intel system programming. More information can be found
- * on Intel site and more precisely in the following book :
- *
- * Pentium Processor familly
- * Developper's Manual
- *
- * Volume 3 : Architecture and Programming Manual
- *
- * Copyright (C) 1998 Eric Valette (valette at crf.canon.fr)
- * Canon Centre Recherche France.
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.org/license/LICENSE.
- */
-
-#ifndef _LIBCPU_i386_CPU_H
-#define _LIBCPU_i386_CPU_H
-
-#include <rtems/score/registers.h>
-
-#ifndef ASM
-
-/*
- * Interrupt Level Macros
- */
-#include <rtems/score/interrupts.h>
-
-#include <rtems/score/basedefs.h>
-
-/*
- * Segment Access Routines
- *
- * NOTE: Unfortunately, these are still static inlines even when the
- * "macro" implementation of the generic code is used.
- */
-
-static __inline__ unsigned short i386_get_cs(void)
-{
- register unsigned short segment = 0;
-
- __asm__ volatile ( "movw %%cs,%0" : "=r" (segment) : "0" (segment) );
-
- return segment;
-}
-
-static __inline__ unsigned short i386_get_ds(void)
-{
- register unsigned short segment = 0;
-
- __asm__ volatile ( "movw %%ds,%0" : "=r" (segment) : "0" (segment) );
-
- return segment;
-}
-
-static __inline__ unsigned short i386_get_es(void)
-{
- register unsigned short segment = 0;
-
- __asm__ volatile ( "movw %%es,%0" : "=r" (segment) : "0" (segment) );
-
- return segment;
-}
-
-static __inline__ unsigned short i386_get_ss(void)
-{
- register unsigned short segment = 0;
-
- __asm__ volatile ( "movw %%ss,%0" : "=r" (segment) : "0" (segment) );
-
- return segment;
-}
-
-static __inline__ unsigned short i386_get_fs(void)
-{
- register unsigned short segment = 0;
-
- __asm__ volatile ( "movw %%fs,%0" : "=r" (segment) : "0" (segment) );
-
- return segment;
-}
-
-static __inline__ unsigned short i386_get_gs(void)
-{
- register unsigned short segment = 0;
-
- __asm__ volatile ( "movw %%gs,%0" : "=r" (segment) : "0" (segment) );
-
- return segment;
-}
-
-/*
- * IO Port Access Routines
- */
-
-#define i386_outport_byte( _port, _value ) \
-do { register unsigned short __port = _port; \
- register unsigned char __value = _value; \
- \
- __asm__ volatile ( "outb %0,%1" : : "a" (__value), "d" (__port) ); \
- } while (0)
-
-#define i386_outport_word( _port, _value ) \
-do { register unsigned short __port = _port; \
- register unsigned short __value = _value; \
- \
- __asm__ volatile ( "outw %0,%1" : : "a" (__value), "d" (__port) ); \
- } while (0)
-
-#define i386_outport_long( _port, _value ) \
-do { register unsigned short __port = _port; \
- register unsigned int __value = _value; \
- \
- __asm__ volatile ( "outl %0,%1" : : "a" (__value), "d" (__port) ); \
- } while (0)
-
-#define i386_inport_byte( _port, _value ) \
-do { register unsigned short __port = _port; \
- register unsigned char __value = 0; \
- \
- __asm__ volatile ( "inb %1,%0" : "=a" (__value) \
- : "d" (__port) \
- ); \
- _value = __value; \
- } while (0)
-
-#define i386_inport_word( _port, _value ) \
-do { register unsigned short __port = _port; \
- register unsigned short __value = 0; \
- \
- __asm__ volatile ( "inw %1,%0" : "=a" (__value) \
- : "d" (__port) \
- ); \
- _value = __value; \
- } while (0)
-
-#define i386_inport_long( _port, _value ) \
-do { register unsigned short __port = _port; \
- register unsigned int __value = 0; \
- \
- __asm__ volatile ( "inl %1,%0" : "=a" (__value) \
- : "d" (__port) \
- ); \
- _value = __value; \
- } while (0)
-
-/*
- * Type definition for raw interrupts.
- */
-
-typedef unsigned char rtems_vector_offset;
-
-typedef struct __rtems_raw_irq_connect_data__{
- /*
- * IDT vector offset (IRQ line + PC386_IRQ_VECTOR_BASE)
- */
- rtems_vector_offset idtIndex;
- /*
- * IDT raw handler. See comment on handler properties below in function prototype.
- */
- rtems_raw_irq_hdl hdl;
- /*
- * function for enabling raw interrupts. In order to be consistent
- * with the fact that the raw connexion can defined in the
- * libcpu library, this library should have no knowledge of
- * board specific hardware to manage interrupts and thus the
- * "on" routine must enable the irq both at device and PIC level.
- *
- */
- rtems_raw_irq_enable on;
- /*
- * function for disabling raw interrupts. In order to be consistent
- * with the fact that the raw connexion can defined in the
- * libcpu library, this library should have no knowledge of
- * board specific hardware to manage interrupts and thus the
- * "on" routine must disable the irq both at device and PIC level.
- *
- */
- rtems_raw_irq_disable off;
- /*
- * function enabling to know what interrupt may currently occur
- */
- rtems_raw_irq_is_enabled isOn;
-}rtems_raw_irq_connect_data;
-
-typedef struct {
- /*
- * size of all the table fields (*Tbl) described below.
- */
- unsigned int idtSize;
- /*
- * Default handler used when disconnecting interrupts.
- */
- rtems_raw_irq_connect_data defaultRawEntry;
- /*
- * Table containing initials/current value.
- */
- rtems_raw_irq_connect_data* rawIrqHdlTbl;
-}rtems_raw_irq_global_settings;
-
-#include <rtems/score/idtr.h>
-
-/*
- * C callable function enabling to get handler currently connected to a vector
- *
- */
-rtems_raw_irq_hdl get_hdl_from_vector(rtems_vector_offset);
-
-/*
- * C callable function enabling to set up one raw idt entry
- */
-extern int i386_set_idt_entry (const rtems_raw_irq_connect_data*);
-
-/*
- * C callable function enabling to get one current raw idt entry
- */
-extern int i386_get_current_idt_entry (rtems_raw_irq_connect_data*);
-
-/*
- * C callable function enabling to remove one current raw idt entry
- */
-extern int i386_delete_idt_entry (const rtems_raw_irq_connect_data*);
-
-/*
- * C callable function enabling to init idt.
- *
- * CAUTION : this function assumes that the IDTR register
- * has been already set.
- */
-extern int i386_init_idt (rtems_raw_irq_global_settings* config);
-
-/*
- * C callable function enabling to get actual idt configuration
- */
-extern int i386_get_idt_config (rtems_raw_irq_global_settings** config);
-
-
-/*
- * See page 11.12 Figure 11-8.
- *
- */
-/**
- * @brief describes one entry of Global/Local Descriptor Table
- */
-typedef struct {
- unsigned int limit_15_0 : 16;
- unsigned int base_address_15_0 : 16;
- unsigned int base_address_23_16 : 8;
- unsigned int type : 4;
- unsigned int descriptor_type : 1;
- unsigned int privilege : 2;
- unsigned int present : 1;
- unsigned int limit_19_16 : 4;
- unsigned int available : 1;
- unsigned int fixed_value_bits : 1;
- unsigned int operation_size : 1;
- unsigned int granularity : 1;
- unsigned int base_address_31_24 : 8;
-} RTEMS_PACKED segment_descriptors;
-
-/*
- * C callable function enabling to get easilly usable info from
- * the actual value of GDT register.
- */
-extern void i386_get_info_from_GDTR (segment_descriptors** table,
- uint16_t* limit);
-/*
- * C callable function enabling to change the value of GDT register. Must be called
- * with interrupts masked at processor level!!!.
- */
-extern void i386_set_GDTR (segment_descriptors*,
- uint16_t limit);
-
-/**
- * @brief Allows to set a GDT entry.
- *
- * Puts global descriptor \p sd to the global descriptor table on index
- * \p segment_selector_index
- *
- * @param[in] segment_selector_index index to GDT entry
- * @param[in] sd structure to be coppied to given \p segment_selector in GDT
- * @retval 0 FAILED out of GDT range or index is 0, which is not valid
- * index in GDT
- * @retval 1 SUCCESS
- */
-extern uint32_t i386_raw_gdt_entry (uint16_t segment_selector_index,
- segment_descriptors* sd);
-
-/**
- * @brief fills \p sd with provided \p base in appropriate fields of \p sd
- *
- * @param[in] base 32-bit address to be set as descriptor's base
- * @param[out] sd descriptor being filled with \p base
- */
-extern void i386_fill_segment_desc_base (uint32_t base,
- segment_descriptors* sd);
-
-/**
- * @brief fills \p sd with provided \p limit in appropriate fields of \p sd
- *
- * sets granularity bit if necessary
- *
- * @param[in] limit 32-bit value representing number of limit bytes
- * @param[out] sd descriptor being filled with \p limit
- */
-extern void i386_fill_segment_desc_limit (uint32_t limit,
- segment_descriptors* sd);
-
-/*
- * C callable function enabling to set up one raw interrupt handler
- */
-extern uint32_t i386_set_gdt_entry (uint16_t segment_selector,
- uint32_t base,
- uint32_t limit);
-
-/**
- * @brief Returns next empty descriptor in GDT.
- *
- * Number of descriptors that can be returned depends on \a GDT_SIZE
- *
- * @retval 0 FAILED GDT is full
- * @retval <1;65535> segment_selector number as index to GDT
- */
-extern uint16_t i386_next_empty_gdt_entry (void);
-
-/**
- * @brief Copies GDT entry at index \p segment_selector to structure
- * pointed to by \p struct_to_fill
- *
- * @param[in] segment_selector index to GDT table specifying descriptor to copy
- * @param[out] struct_to_fill pointer to memory where will be descriptor coppied
- * @retval 0 FAILED segment_selector out of GDT range
- * @retval <1;65535> retrieved segment_selector
- */
-extern uint16_t i386_cpy_gdt_entry (uint16_t segment_selector,
- segment_descriptors* struct_to_fill);
-
-/**
- * @brief Returns pointer to GDT table at index given by \p segment_selector
- *
- * @param[in] sgmnt_selector index to GDT table for specifying descriptor to get
- * @retval NULL FAILED segment_selector out of GDT range
- * @retval pointer to GDT table at \p segment_selector
- */
-extern segment_descriptors* i386_get_gdt_entry (uint16_t sgmnt_selector);
-
-/**
- * @brief Extracts base address from GDT entry pointed to by \p gdt_entry
- *
- * @param[in] gdt_entry pointer to entry from which base should be retrieved
- * @retval base address from GDT entry
-*/
-RTEMS_INLINE_ROUTINE void* i386_base_gdt_entry (segment_descriptors* gdt_entry)
-{
- return (void*)(gdt_entry->base_address_15_0 |
- (gdt_entry->base_address_23_16<<16) |
- (gdt_entry->base_address_31_24<<24));
-}
-
-/**
- * @brief Extracts limit in bytes from GDT entry pointed to by \p gdt_entry
- *
- * @param[in] gdt_entry pointer to entry from which limit should be retrieved
- * @retval limit value in bytes from GDT entry
- */
-extern uint32_t i386_limit_gdt_entry (segment_descriptors* gdt_entry);
-
-/*
- * See page 11.18 Figure 11-12.
- *
- */
-
-typedef struct {
- unsigned int offset : 12;
- unsigned int page : 10;
- unsigned int directory : 10;
-}la_bits;
-
-typedef union {
- la_bits bits;
- unsigned int address;
-}linear_address;
-
-
-/*
- * See page 11.20 Figure 11-14.
- *
- */
-
-typedef struct {
- unsigned int present : 1;
- unsigned int writable : 1;
- unsigned int user : 1;
- unsigned int write_through : 1;
- unsigned int cache_disable : 1;
- unsigned int accessed : 1;
- unsigned int reserved1 : 1;
- unsigned int page_size : 1;
- unsigned int reserved2 : 1;
- unsigned int available : 3;
- unsigned int page_frame_address : 20;
-}page_dir_bits;
-
-typedef union {
- page_dir_bits bits;
- unsigned int dir_entry;
-}page_dir_entry;
-
-typedef struct {
- unsigned int present : 1;
- unsigned int writable : 1;
- unsigned int user : 1;
- unsigned int write_through : 1;
- unsigned int cache_disable : 1;
- unsigned int accessed : 1;
- unsigned int dirty : 1;
- unsigned int reserved2 : 2;
- unsigned int available : 3;
- unsigned int page_frame_address : 20;
-}page_table_bits;
-
-typedef union {
- page_table_bits bits;
- unsigned int table_entry;
-} page_table_entry;
-
-/*
- * definitions related to page table entry
- */
-#define PG_SIZE 0x1000
-#define MASK_OFFSET 0xFFF
-#define MAX_ENTRY (PG_SIZE/sizeof(page_dir_entry))
-#define FOUR_MB 0x400000
-#define MASK_FLAGS 0x1A
-
-#define PTE_PRESENT 0x01
-#define PTE_WRITABLE 0x02
-#define PTE_USER 0x04
-#define PTE_WRITE_THROUGH 0x08
-#define PTE_CACHE_DISABLE 0x10
-
-typedef struct {
- page_dir_entry pageDirEntry[MAX_ENTRY];
-} page_directory;
-
-typedef struct {
- page_table_entry pageTableEntry[MAX_ENTRY];
-} page_table;
-
-
-/* C declaration for paging management */
-
-extern int _CPU_is_cache_enabled(void);
-extern int _CPU_is_paging_enabled(void);
-extern int init_paging(void);
-extern void _CPU_enable_paging(void);
-extern void _CPU_disable_paging(void);
-extern void _CPU_disable_cache(void);
-extern void _CPU_enable_cache(void);
-extern int _CPU_map_phys_address
- (void **mappedAddress, void *physAddress,
- int size, int flag);
-extern int _CPU_unmap_virt_address (void *mappedAddress, int size);
-extern int _CPU_change_memory_mapping_attribute
- (void **newAddress, void *mappedAddress,
- unsigned int size, unsigned int flag);
-extern int _CPU_display_memory_attribute(void);
-
-# endif /* ASM */
-
-#endif
diff --git a/c/src/lib/libcpu/i386/displayCpu.c b/c/src/lib/libcpu/i386/displayCpu.c
index f8ab3b3..f451194 100644
--- a/c/src/lib/libcpu/i386/displayCpu.c
+++ b/c/src/lib/libcpu/i386/displayCpu.c
@@ -20,7 +20,7 @@
* Tell us the machine setup..
*/
#include <stdio.h>
-#include <libcpu/cpu.h>
+#include <rtems/score/cpu.h>
#include <string.h>
#include <libcpu/cpuModel.h>
#include <rtems/bspIo.h>
diff --git a/c/src/lib/libcpu/i386/page.c b/c/src/lib/libcpu/i386/page.c
index b35d72b..f05e145 100644
--- a/c/src/lib/libcpu/i386/page.c
+++ b/c/src/lib/libcpu/i386/page.c
@@ -21,7 +21,8 @@
#include <stdlib.h>
#include <string.h>
#include <rtems.h>
-#include <libcpu/cpu.h>
+#include <rtems/score/cpu.h>
+#include <libcpu/page.h>
#define MEMORY_SIZE 0x4000000 /* 64Mo */
diff --git a/c/src/lib/libcpu/i386/page.h b/c/src/lib/libcpu/i386/page.h
new file mode 100644
index 0000000..5e9cec2
--- /dev/null
+++ b/c/src/lib/libcpu/i386/page.h
@@ -0,0 +1,39 @@
+/*
+ * @file page.h
+ *
+ * Copyright (C) 1998 Eric Valette (valette at crf.canon.fr)
+ * Canon Centre Recherche France.
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#ifndef _LIBCPU_i386_PAGE_H
+#define _LIBCPU_i386_PAGE_H
+
+#ifndef ASM
+
+#include <rtems/score/cpu.h>
+
+/* C declaration for paging management */
+
+extern int _CPU_is_cache_enabled(void);
+extern int _CPU_is_paging_enabled(void);
+extern int init_paging(void);
+extern void _CPU_enable_paging(void);
+extern void _CPU_disable_paging(void);
+extern void _CPU_disable_cache(void);
+extern void _CPU_enable_cache(void);
+extern int _CPU_map_phys_address
+ (void **mappedAddress, void *physAddress,
+ int size, int flag);
+extern int _CPU_unmap_virt_address (void *mappedAddress, int size);
+extern int _CPU_change_memory_mapping_attribute
+ (void **newAddress, void *mappedAddress,
+ unsigned int size, unsigned int flag);
+extern int _CPU_display_memory_attribute(void);
+
+# endif /* ASM */
+
+#endif
diff --git a/c/src/lib/libcpu/i386/preinstall.am b/c/src/lib/libcpu/i386/preinstall.am
index 6f4af52..dab3862 100644
--- a/c/src/lib/libcpu/i386/preinstall.am
+++ b/c/src/lib/libcpu/i386/preinstall.am
@@ -18,9 +18,9 @@ $(PROJECT_INCLUDE)/libcpu/$(dirstamp):
@: > $(PROJECT_INCLUDE)/libcpu/$(dirstamp)
PREINSTALL_DIRS += $(PROJECT_INCLUDE)/libcpu/$(dirstamp)
-$(PROJECT_INCLUDE)/libcpu/cpu.h: cpu.h $(PROJECT_INCLUDE)/libcpu/$(dirstamp)
- $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/libcpu/cpu.h
-PREINSTALL_FILES += $(PROJECT_INCLUDE)/libcpu/cpu.h
+$(PROJECT_INCLUDE)/libcpu/page.h: page.h $(PROJECT_INCLUDE)/libcpu/$(dirstamp)
+ $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/libcpu/page.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/libcpu/page.h
$(PROJECT_INCLUDE)/libcpu/cpuModel.h: cpuModel.h $(PROJECT_INCLUDE)/libcpu/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/libcpu/cpuModel.h
diff --git a/cpukit/score/cpu/i386/rtems/score/cpu.h b/cpukit/score/cpu/i386/rtems/score/cpu.h
index 1426bbf..3d9e4eb 100644
--- a/cpukit/score/cpu/i386/rtems/score/cpu.h
+++ b/cpukit/score/cpu/i386/rtems/score/cpu.h
@@ -30,11 +30,6 @@ extern "C" {
#include <rtems/score/types.h>
#include <rtems/score/i386.h>
-#ifndef ASM
-#include <rtems/score/interrupts.h> /* formerly in libcpu/cpu.h> */
-#include <rtems/score/registers.h> /* formerly part of libcpu */
-#endif
-
/* conditional compilation parameters */
#define CPU_INLINE_ENABLE_DISPATCH TRUE
diff --git a/cpukit/score/cpu/i386/rtems/score/i386.h b/cpukit/score/cpu/i386/rtems/score/i386.h
index 875526a..2555d13 100644
--- a/cpukit/score/cpu/i386/rtems/score/i386.h
+++ b/cpukit/score/cpu/i386/rtems/score/i386.h
@@ -8,9 +8,12 @@
*/
/*
- * COPYRIGHT (c) 1989-2013.
+ * COPYRIGHT (c) 1989-2016.
* On-Line Applications Research Corporation (OAR).
*
+ * Copyright (C) 1998 Eric Valette (valette at crf.canon.fr)
+ * Canon Centre Recherche France.
+ *
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
@@ -23,6 +26,9 @@
extern "C" {
#endif
+#include <rtems/score/interrupts.h>
+#include <rtems/score/registers.h>
+
/*
* This section contains the information required to build
* RTEMS for a particular member of the Intel i386
@@ -112,6 +118,7 @@ static inline uint32_t i386_swap_u32(
#endif
return( lout );
}
+#define CPU_swap_u32( _value ) i386_swap_u32( _value )
static inline uint16_t i386_swap_u16(
uint16_t value
@@ -122,6 +129,7 @@ static inline uint16_t i386_swap_u16(
__asm__ volatile( "rorw $8,%0" : "=r" (sout) : "0" (value));
return (sout);
}
+#define CPU_swap_u16( _value ) i386_swap_u16( _value )
/*
* Added for pagination management
@@ -202,7 +210,7 @@ RTEMS_INLINE_ROUTINE void *i386_Real_to_physical(
}
/**
- * @brief Retreives real mode pointer elements {segmnet, offset} from
+ * @brief Retrieves real mode pointer elements {segmnet, offset} from
* physical address.
*
* i386_Physical_to_real
@@ -227,23 +235,425 @@ int i386_Physical_to_real(
);
/*
- * "Simpler" names for a lot of the things defined in this file
+ * Segment Access Routines
+ *
+ * NOTE: Unfortunately, these are still static inlines even when the
+ * "macro" implementation of the generic code is used.
*/
-/* segment access routines */
+static __inline__ unsigned short i386_get_cs(void)
+{
+ register unsigned short segment = 0;
-#define get_cs() i386_get_cs()
-#define get_ds() i386_get_ds()
-#define get_es() i386_get_es()
-#define get_ss() i386_get_ss()
-#define get_fs() i386_get_fs()
-#define get_gs() i386_get_gs()
+ __asm__ volatile ( "movw %%cs,%0" : "=r" (segment) : "0" (segment) );
-#define CPU_swap_u32( _value ) i386_swap_u32( _value )
-#define CPU_swap_u16( _value ) i386_swap_u16( _value )
+ return segment;
+}
+
+static __inline__ unsigned short i386_get_ds(void)
+{
+ register unsigned short segment = 0;
+
+ __asm__ volatile ( "movw %%ds,%0" : "=r" (segment) : "0" (segment) );
+
+ return segment;
+}
+
+static __inline__ unsigned short i386_get_es(void)
+{
+ register unsigned short segment = 0;
+
+ __asm__ volatile ( "movw %%es,%0" : "=r" (segment) : "0" (segment) );
+
+ return segment;
+}
+
+static __inline__ unsigned short i386_get_ss(void)
+{
+ register unsigned short segment = 0;
+
+ __asm__ volatile ( "movw %%ss,%0" : "=r" (segment) : "0" (segment) );
+
+ return segment;
+}
+
+static __inline__ unsigned short i386_get_fs(void)
+{
+ register unsigned short segment = 0;
+
+ __asm__ volatile ( "movw %%fs,%0" : "=r" (segment) : "0" (segment) );
+
+ return segment;
+}
-/* i80x86 I/O instructions */
+static __inline__ unsigned short i386_get_gs(void)
+{
+ register unsigned short segment = 0;
+
+ __asm__ volatile ( "movw %%gs,%0" : "=r" (segment) : "0" (segment) );
+
+ return segment;
+}
+
+/*
+ * IO Port Access Routines
+ */
+
+#define i386_outport_byte( _port, _value ) \
+do { register unsigned short __port = _port; \
+ register unsigned char __value = _value; \
+ \
+ __asm__ volatile ( "outb %0,%1" : : "a" (__value), "d" (__port) ); \
+ } while (0)
+
+#define i386_outport_word( _port, _value ) \
+do { register unsigned short __port = _port; \
+ register unsigned short __value = _value; \
+ \
+ __asm__ volatile ( "outw %0,%1" : : "a" (__value), "d" (__port) ); \
+ } while (0)
+
+#define i386_outport_long( _port, _value ) \
+do { register unsigned short __port = _port; \
+ register unsigned int __value = _value; \
+ \
+ __asm__ volatile ( "outl %0,%1" : : "a" (__value), "d" (__port) ); \
+ } while (0)
+
+#define i386_inport_byte( _port, _value ) \
+do { register unsigned short __port = _port; \
+ register unsigned char __value = 0; \
+ \
+ __asm__ volatile ( "inb %1,%0" : "=a" (__value) \
+ : "d" (__port) \
+ ); \
+ _value = __value; \
+ } while (0)
+
+#define i386_inport_word( _port, _value ) \
+do { register unsigned short __port = _port; \
+ register unsigned short __value = 0; \
+ \
+ __asm__ volatile ( "inw %1,%0" : "=a" (__value) \
+ : "d" (__port) \
+ ); \
+ _value = __value; \
+ } while (0)
+
+#define i386_inport_long( _port, _value ) \
+do { register unsigned short __port = _port; \
+ register unsigned int __value = 0; \
+ \
+ __asm__ volatile ( "inl %1,%0" : "=a" (__value) \
+ : "d" (__port) \
+ ); \
+ _value = __value; \
+ } while (0)
+
+/*
+ * Type definition for raw interrupts.
+ */
+
+typedef unsigned char rtems_vector_offset;
+
+typedef struct __rtems_raw_irq_connect_data__{
+ /*
+ * IDT vector offset (IRQ line + PC386_IRQ_VECTOR_BASE)
+ */
+ rtems_vector_offset idtIndex;
+ /*
+ * IDT raw handler. See comment on handler properties below in function prototype.
+ */
+ rtems_raw_irq_hdl hdl;
+ /*
+ * function for enabling raw interrupts. In order to be consistent
+ * with the fact that the raw connexion can defined in the
+ * libcpu library, this library should have no knowledge of
+ * board specific hardware to manage interrupts and thus the
+ * "on" routine must enable the irq both at device and PIC level.
+ *
+ */
+ rtems_raw_irq_enable on;
+ /*
+ * function for disabling raw interrupts. In order to be consistent
+ * with the fact that the raw connexion can defined in the
+ * libcpu library, this library should have no knowledge of
+ * board specific hardware to manage interrupts and thus the
+ * "on" routine must disable the irq both at device and PIC level.
+ *
+ */
+ rtems_raw_irq_disable off;
+ /*
+ * function enabling to know what interrupt may currently occur
+ */
+ rtems_raw_irq_is_enabled isOn;
+}rtems_raw_irq_connect_data;
+
+typedef struct {
+ /*
+ * size of all the table fields (*Tbl) described below.
+ */
+ unsigned int idtSize;
+ /*
+ * Default handler used when disconnecting interrupts.
+ */
+ rtems_raw_irq_connect_data defaultRawEntry;
+ /*
+ * Table containing initials/current value.
+ */
+ rtems_raw_irq_connect_data* rawIrqHdlTbl;
+}rtems_raw_irq_global_settings;
+
+#include <rtems/score/idtr.h>
+
+/*
+ * C callable function enabling to get handler currently connected to a vector
+ *
+ */
+rtems_raw_irq_hdl get_hdl_from_vector(rtems_vector_offset);
+
+/*
+ * C callable function enabling to set up one raw idt entry
+ */
+extern int i386_set_idt_entry (const rtems_raw_irq_connect_data*);
+
+/*
+ * C callable function enabling to get one current raw idt entry
+ */
+extern int i386_get_current_idt_entry (rtems_raw_irq_connect_data*);
+
+/*
+ * C callable function enabling to remove one current raw idt entry
+ */
+extern int i386_delete_idt_entry (const rtems_raw_irq_connect_data*);
+
+/*
+ * C callable function enabling to init idt.
+ *
+ * CAUTION : this function assumes that the IDTR register
+ * has been already set.
+ */
+extern int i386_init_idt (rtems_raw_irq_global_settings* config);
+
+/*
+ * C callable function enabling to get actual idt configuration
+ */
+extern int i386_get_idt_config (rtems_raw_irq_global_settings** config);
+
+/*
+ * See page 11.12 Figure 11-8.
+ *
+ */
+/**
+ * @brief describes one entry of Global/Local Descriptor Table
+ */
+typedef struct {
+ unsigned int limit_15_0 : 16;
+ unsigned int base_address_15_0 : 16;
+ unsigned int base_address_23_16 : 8;
+ unsigned int type : 4;
+ unsigned int descriptor_type : 1;
+ unsigned int privilege : 2;
+ unsigned int present : 1;
+ unsigned int limit_19_16 : 4;
+ unsigned int available : 1;
+ unsigned int fixed_value_bits : 1;
+ unsigned int operation_size : 1;
+ unsigned int granularity : 1;
+ unsigned int base_address_31_24 : 8;
+} RTEMS_PACKED segment_descriptors;
+
+/*
+ * C callable function enabling to get easilly usable info from
+ * the actual value of GDT register.
+ */
+extern void i386_get_info_from_GDTR (segment_descriptors** table,
+ uint16_t* limit);
+/*
+ * C callable function enabling to change the value of GDT register. Must be called
+ * with interrupts masked at processor level!!!.
+ */
+extern void i386_set_GDTR (segment_descriptors*,
+ uint16_t limit);
+
+/**
+ * @brief Allows to set a GDT entry.
+ *
+ * Puts global descriptor \p sd to the global descriptor table on index
+ * \p segment_selector_index
+ *
+ * @param[in] segment_selector_index index to GDT entry
+ * @param[in] sd structure to be coppied to given \p segment_selector in GDT
+ * @retval 0 FAILED out of GDT range or index is 0, which is not valid
+ * index in GDT
+ * @retval 1 SUCCESS
+ */
+extern uint32_t i386_raw_gdt_entry (uint16_t segment_selector_index,
+ segment_descriptors* sd);
+
+/**
+ * @brief fills \p sd with provided \p base in appropriate fields of \p sd
+ *
+ * @param[in] base 32-bit address to be set as descriptor's base
+ * @param[out] sd descriptor being filled with \p base
+ */
+extern void i386_fill_segment_desc_base (uint32_t base,
+ segment_descriptors* sd);
+
+/**
+ * @brief fills \p sd with provided \p limit in appropriate fields of \p sd
+ *
+ * sets granularity bit if necessary
+ *
+ * @param[in] limit 32-bit value representing number of limit bytes
+ * @param[out] sd descriptor being filled with \p limit
+ */
+extern void i386_fill_segment_desc_limit (uint32_t limit,
+ segment_descriptors* sd);
+
+/*
+ * C callable function enabling to set up one raw interrupt handler
+ */
+extern uint32_t i386_set_gdt_entry (uint16_t segment_selector,
+ uint32_t base,
+ uint32_t limit);
+
+/**
+ * @brief Returns next empty descriptor in GDT.
+ *
+ * Number of descriptors that can be returned depends on \a GDT_SIZE
+ *
+ * @retval 0 FAILED GDT is full
+ * @retval <1;65535> segment_selector number as index to GDT
+ */
+extern uint16_t i386_next_empty_gdt_entry (void);
+
+/**
+ * @brief Copies GDT entry at index \p segment_selector to structure
+ * pointed to by \p struct_to_fill
+ *
+ * @param[in] segment_selector index to GDT table specifying descriptor to copy
+ * @param[out] struct_to_fill pointer to memory where will be descriptor coppied
+ * @retval 0 FAILED segment_selector out of GDT range
+ * @retval <1;65535> retrieved segment_selector
+ */
+extern uint16_t i386_cpy_gdt_entry (uint16_t segment_selector,
+ segment_descriptors* struct_to_fill);
+
+/**
+ * @brief Returns pointer to GDT table at index given by \p segment_selector
+ *
+ * @param[in] sgmnt_selector index to GDT table for specifying descriptor to get
+ * @retval NULL FAILED segment_selector out of GDT range
+ * @retval pointer to GDT table at \p segment_selector
+ */
+extern segment_descriptors* i386_get_gdt_entry (uint16_t sgmnt_selector);
+
+/**
+ * @brief Extracts base address from GDT entry pointed to by \p gdt_entry
+ *
+ * @param[in] gdt_entry pointer to entry from which base should be retrieved
+ * @retval base address from GDT entry
+*/
+RTEMS_INLINE_ROUTINE void* i386_base_gdt_entry (segment_descriptors* gdt_entry)
+{
+ return (void*)(gdt_entry->base_address_15_0 |
+ (gdt_entry->base_address_23_16<<16) |
+ (gdt_entry->base_address_31_24<<24));
+}
+
+/**
+ * @brief Extracts limit in bytes from GDT entry pointed to by \p gdt_entry
+ *
+ * @param[in] gdt_entry pointer to entry from which limit should be retrieved
+ * @retval limit value in bytes from GDT entry
+ */
+extern uint32_t i386_limit_gdt_entry (segment_descriptors* gdt_entry);
+
+/*
+ * See page 11.18 Figure 11-12.
+ *
+ */
+
+typedef struct {
+ unsigned int offset : 12;
+ unsigned int page : 10;
+ unsigned int directory : 10;
+}la_bits;
+
+typedef union {
+ la_bits bits;
+ unsigned int address;
+}linear_address;
+
+
+/*
+ * See page 11.20 Figure 11-14.
+ *
+ */
+
+typedef struct {
+ unsigned int present : 1;
+ unsigned int writable : 1;
+ unsigned int user : 1;
+ unsigned int write_through : 1;
+ unsigned int cache_disable : 1;
+ unsigned int accessed : 1;
+ unsigned int reserved1 : 1;
+ unsigned int page_size : 1;
+ unsigned int reserved2 : 1;
+ unsigned int available : 3;
+ unsigned int page_frame_address : 20;
+}page_dir_bits;
+
+typedef union {
+ page_dir_bits bits;
+ unsigned int dir_entry;
+}page_dir_entry;
+
+typedef struct {
+ unsigned int present : 1;
+ unsigned int writable : 1;
+ unsigned int user : 1;
+ unsigned int write_through : 1;
+ unsigned int cache_disable : 1;
+ unsigned int accessed : 1;
+ unsigned int dirty : 1;
+ unsigned int reserved2 : 2;
+ unsigned int available : 3;
+ unsigned int page_frame_address : 20;
+}page_table_bits;
+
+typedef union {
+ page_table_bits bits;
+ unsigned int table_entry;
+} page_table_entry;
+
+/*
+ * definitions related to page table entry
+ */
+#define PG_SIZE 0x1000
+#define MASK_OFFSET 0xFFF
+#define MAX_ENTRY (PG_SIZE/sizeof(page_dir_entry))
+#define FOUR_MB 0x400000
+#define MASK_FLAGS 0x1A
+
+#define PTE_PRESENT 0x01
+#define PTE_WRITABLE 0x02
+#define PTE_USER 0x04
+#define PTE_WRITE_THROUGH 0x08
+#define PTE_CACHE_DISABLE 0x10
+
+typedef struct {
+ page_dir_entry pageDirEntry[MAX_ENTRY];
+} page_directory;
+
+typedef struct {
+ page_table_entry pageTableEntry[MAX_ENTRY];
+} page_table;
+
+/* Simpler names for the i80x86 I/O instructions */
#define outport_byte( _port, _value ) i386_outport_byte( _port, _value )
#define outport_word( _port, _value ) i386_outport_word( _port, _value )
#define outport_long( _port, _value ) i386_outport_long( _port, _value )
@@ -251,7 +661,6 @@ int i386_Physical_to_real(
#define inport_word( _port, _value ) i386_inport_word( _port, _value )
#define inport_long( _port, _value ) i386_inport_long( _port, _value )
-
#ifdef __cplusplus
}
#endif
More information about the vc
mailing list