WebSVN – HelenOS – Diff – /trunk/kernel/arch/amd64/src/amd64.c


/*
 * Copyright (c) 2005 Ondrej Palkovsky
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - 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.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
 */
 
/** @addtogroup amd64
 * @{
 */
/** @file
 */
 
#include <arch.h>
 
#include <arch/types.h>
 
#include <config.h>
 
#include <proc/thread.h>
#include <genarch/multiboot/multiboot.h>
#include <genarch/drivers/legacy/ia32/io.h>
#include <genarch/drivers/ega/ega.h>
#include <arch/drivers/vesa.h>
#include <genarch/kbd/i8042.h>
#include <arch/drivers/i8254.h>
#include <arch/drivers/i8259.h>
#include <arch/boot/boot.h>
 
#ifdef CONFIG_SMP
#include <arch/smp/apic.h>
#endif
 
#include <arch/bios/bios.h>
#include <arch/cpu.h>
#include <print.h>
#include <arch/cpuid.h>
#include <genarch/acpi/acpi.h>
#include <panic.h>
#include <interrupt.h>
#include <arch/syscall.h>
#include <arch/debugger.h>
#include <syscall/syscall.h>
#include <console/console.h>
#include <ddi/irq.h>
#include <ddi/device.h>
#include <sysinfo/sysinfo.h>
 
 
/** Disable I/O on non-privileged levels
 *
 * Clean IOPL(12,13) and NT(14) flags in EFLAGS register
 */
static void clean_IOPL_NT_flags(void)
{
    asm volatile (
        "pushfq\n"
        "pop %%rax\n"
        "and $~(0x7000), %%rax\n"
        "pushq %%rax\n"
        "popfq\n"
        ::: "%rax"
    );
}
 
/** Disable alignment check
 *
 * Clean AM(18) flag in CR0 register
 */
static void clean_AM_flag(void)
{
    asm volatile (
        "mov %%cr0, %%rax\n"
        "and $~(0x40000), %%rax\n"
        "mov %%rax, %%cr0\n"
        ::: "%rax"
    );
}
 
/** Perform amd64-specific initialization before main_bsp() is called.
 *
 * @param signature Should contain the multiboot signature.
 * @param mi        Pointer to the multiboot information structure.
 */
void arch_pre_main(uint32_t signature, const multiboot_info_t *mi)
{
    /* Parse multiboot information obtained from the bootloader. */
    multiboot_info_parse(signature, mi);
   
#ifdef CONFIG_SMP
    /* Copy AP bootstrap routines below 1 MB. */
    memcpy((void *) AP_BOOT_OFFSET, (void *) BOOT_OFFSET,
        (size_t) &_hardcoded_unmapped_size);
#endif
}
 
void arch_pre_mm_init(void)
{
    /* Enable no-execute pages */
    set_efer_flag(AMD_NXE_FLAG);
    /* Enable FPU */
    cpu_setup_fpu();
 
    /* Initialize segmentation */
    pm_init();
   
    /* Disable I/O on nonprivileged levels
     * clear the NT (nested-thread) flag
     */
    clean_IOPL_NT_flags();
    /* Disable alignment check */
    clean_AM_flag();
 
    if (config.cpu_active == 1) {
        interrupt_init();
        bios_init();
       
        /* PIC */
        i8259_init();
    }
}
 
 
void arch_post_mm_init(void)
{
    if (config.cpu_active == 1) {
        /* Initialize IRQ routing */
        irq_init(IRQ_COUNT, IRQ_COUNT);
       
        /* hard clock */
        i8254_init();
               
#ifdef CONFIG_FB
        if (vesa_present())
            vesa_init();
        else
#endif
            ega_init(EGA_BASE, EGA_VIDEORAM);   /* video */
       
        /* Enable debugger */
        debugger_init();
        /* Merge all memory zones to 1 big zone */
        zone_merge_all();
    }
   
    /* Setup fast SYSCALL/SYSRET */
    syscall_setup_cpu();
}
 
void arch_post_cpu_init()
{
#ifdef CONFIG_SMP
    if (config.cpu_active > 1) {
        l_apic_init();
        l_apic_debug();
    }
#endif
}
 
void arch_pre_smp_init(void)
{
    if (config.cpu_active == 1) {
#ifdef CONFIG_SMP
        acpi_init();
#endif /* CONFIG_SMP */
    }
}
 
void arch_post_smp_init(void)
{
    devno_t devno = device_assign_devno();
    /* keyboard controller */
    (void) i8042_init((i8042_t *) I8042_BASE, devno, IRQ_KBD);
 
    /*
     * This is the necessary evil until the userspace driver is entirely
     * self-sufficient.
     */
    sysinfo_set_item_val("kbd", NULL, true);
    sysinfo_set_item_val("kbd.devno", NULL, devno);
    sysinfo_set_item_val("kbd.inr", NULL, IRQ_KBD);
}
 
void calibrate_delay_loop(void)
{
    i8254_calibrate_delay_loop();
    if (config.cpu_active == 1) {
        /*
         * This has to be done only on UP.
         * On SMP, i8254 is not used for time keeping and its interrupt pin remains masked.
         */
        i8254_normal_operation();
    }
}
 
/** Set thread-local-storage pointer
 *
 * TLS pointer is set in FS register. Unfortunately the 64-bit
 * part can be set only in CPL0 mode.
 *
 * The specs say, that on %fs:0 there is stored contents of %fs register,
 * we need not to go to CPL0 to read it.
 */
unative_t sys_tls_set(unative_t addr)
{
    THREAD->arch.tls = addr;
    write_msr(AMD_MSR_FS, addr);
    return 0;
}
 
/** Acquire console back for kernel
 *
 */
void arch_grab_console(void)
{
#ifdef CONFIG_FB
    vesa_redraw();
#else
    ega_redraw();
#endif
}
 
/** Return console to userspace
 *
 */
void arch_release_console(void)
{
}
 
/** Construct function pointer
 *
 * @param fptr   function pointer structure
 * @param addr   function address
 * @param caller calling function address
 *
 * @return address of the function pointer
 *
 */
void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller)
{
    return addr;
}
 
/** @}
 */
 

Rev 4017	Rev 4022
1	/*	1	/*
2	* Copyright (c) 2005 Ondrej Palkovsky	2	* Copyright (c) 2005 Ondrej Palkovsky
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/** @addtogroup amd64	29	/** @addtogroup amd64
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#include <arch.h>	35	#include <arch.h>
36		36
37	#include <arch/types.h>	37	#include <arch/types.h>
38		38
39	#include <config.h>	39	#include <config.h>
40		40
41	#include <proc/thread.h>	41	#include <proc/thread.h>
-		42	#include <genarch/multiboot/multiboot.h>
42	#include <genarch/drivers/legacy/ia32/io.h>	43	#include <genarch/drivers/legacy/ia32/io.h>
43	#include <genarch/drivers/ega/ega.h>	44	#include <genarch/drivers/ega/ega.h>
44	#include <arch/drivers/vesa.h>	45	#include <arch/drivers/vesa.h>
45	#include <genarch/kbd/i8042.h>	46	#include <genarch/kbd/i8042.h>
46	#include <arch/drivers/i8254.h>	47	#include <arch/drivers/i8254.h>
47	#include <arch/drivers/i8259.h>	48	#include <arch/drivers/i8259.h>
-		49	#include <arch/boot/boot.h>
48		50
49	#ifdef CONFIG_SMP	51	#ifdef CONFIG_SMP
50	#include <arch/smp/apic.h>	52	#include <arch/smp/apic.h>
51	#endif	53	#endif
52		54
53	#include <arch/bios/bios.h>	55	#include <arch/bios/bios.h>
54	#include <arch/cpu.h>	56	#include <arch/cpu.h>
55	#include <print.h>	57	#include <print.h>
56	#include <arch/cpuid.h>	58	#include <arch/cpuid.h>
57	#include <genarch/acpi/acpi.h>	59	#include <genarch/acpi/acpi.h>
58	#include <panic.h>	60	#include <panic.h>
59	#include <interrupt.h>	61	#include <interrupt.h>
60	#include <arch/syscall.h>	62	#include <arch/syscall.h>
61	#include <arch/debugger.h>	63	#include <arch/debugger.h>
62	#include <syscall/syscall.h>	64	#include <syscall/syscall.h>
63	#include <console/console.h>	65	#include <console/console.h>
64	#include <ddi/irq.h>	66	#include <ddi/irq.h>
65	#include <ddi/device.h>	67	#include <ddi/device.h>
66	#include <sysinfo/sysinfo.h>	68	#include <sysinfo/sysinfo.h>
67		69
68		-
69	/** Disable I/O on non-privileged levels	70	/** Disable I/O on non-privileged levels
70	*	71	*
71	* Clean IOPL(12,13) and NT(14) flags in EFLAGS register	72	* Clean IOPL(12,13) and NT(14) flags in EFLAGS register
72	*/	73	*/
73	static void clean_IOPL_NT_flags(void)	74	static void clean_IOPL_NT_flags(void)
74	{	75	{
75	asm volatile (	76	asm volatile (
76	"pushfq\n"	77	"pushfq\n"
77	"pop %%rax\n"	78	"pop %%rax\n"
78	"and $~(0x7000), %%rax\n"	79	"and $~(0x7000), %%rax\n"
79	"pushq %%rax\n"	80	"pushq %%rax\n"
80	"popfq\n"	81	"popfq\n"
81	::: "%rax"	82	::: "%rax"
82	);	83	);
83	}	84	}
84		85
85	/** Disable alignment check	86	/** Disable alignment check
86	*	87	*
87	* Clean AM(18) flag in CR0 register	88	* Clean AM(18) flag in CR0 register
88	*/	89	*/
89	static void clean_AM_flag(void)	90	static void clean_AM_flag(void)
90	{	91	{
91	asm volatile (	92	asm volatile (
92	"mov %%cr0, %%rax\n"	93	"mov %%cr0, %%rax\n"
93	"and $~(0x40000), %%rax\n"	94	"and $~(0x40000), %%rax\n"
94	"mov %%rax, %%cr0\n"	95	"mov %%rax, %%cr0\n"
95	::: "%rax"	96	::: "%rax"
96	);	97	);
97	}	98	}
-		99
-		100	/** Perform amd64-specific initialization before main_bsp() is called.
-		101	*
-		102	* @param signature Should contain the multiboot signature.
-		103	* @param mi Pointer to the multiboot information structure.
-		104	*/
-		105	void arch_pre_main(uint32_t signature, const multiboot_info_t *mi)
-		106	{
-		107	/* Parse multiboot information obtained from the bootloader. */
-		108	multiboot_info_parse(signature, mi);
-		109
-		110	#ifdef CONFIG_SMP
-		111	/* Copy AP bootstrap routines below 1 MB. */
-		112	memcpy((void ) AP_BOOT_OFFSET, (void ) BOOT_OFFSET,
-		113	(size_t) &_hardcoded_unmapped_size);
-		114	#endif
-		115	}
98		116
99	void arch_pre_mm_init(void)	117	void arch_pre_mm_init(void)
100	{	118	{
101	/* Enable no-execute pages */	119	/* Enable no-execute pages */
102	set_efer_flag(AMD_NXE_FLAG);	120	set_efer_flag(AMD_NXE_FLAG);
103	/* Enable FPU */	121	/* Enable FPU */
104	cpu_setup_fpu();	122	cpu_setup_fpu();
105		123
106	/* Initialize segmentation */	124	/* Initialize segmentation */
107	pm_init();	125	pm_init();
108		126
109	/* Disable I/O on nonprivileged levels	127	/* Disable I/O on nonprivileged levels
110	* clear the NT (nested-thread) flag	128	* clear the NT (nested-thread) flag
111	*/	129	*/
112	clean_IOPL_NT_flags();	130	clean_IOPL_NT_flags();
113	/* Disable alignment check */	131	/* Disable alignment check */
114	clean_AM_flag();	132	clean_AM_flag();
115		133
116	if (config.cpu_active == 1) {	134	if (config.cpu_active == 1) {
117	interrupt_init();	135	interrupt_init();
118	bios_init();	136	bios_init();
119		137
120	/* PIC */	138	/* PIC */
121	i8259_init();	139	i8259_init();
122	}	140	}
123	}	141	}
124		142
125		143
126	void arch_post_mm_init(void)	144	void arch_post_mm_init(void)
127	{	145	{
128	if (config.cpu_active == 1) {	146	if (config.cpu_active == 1) {
129	/* Initialize IRQ routing */	147	/* Initialize IRQ routing */
130	irq_init(IRQ_COUNT, IRQ_COUNT);	148	irq_init(IRQ_COUNT, IRQ_COUNT);
131		149
132	/* hard clock */	150	/* hard clock */
133	i8254_init();	151	i8254_init();
134		152
135	#ifdef CONFIG_FB	153	#ifdef CONFIG_FB
136	if (vesa_present())	154	if (vesa_present())
137	vesa_init();	155	vesa_init();
138	else	156	else
139	#endif	157	#endif
140	ega_init(EGA_BASE, EGA_VIDEORAM); /* video */	158	ega_init(EGA_BASE, EGA_VIDEORAM); /* video */
141		159
142	/* Enable debugger */	160	/* Enable debugger */
143	debugger_init();	161	debugger_init();
144	/* Merge all memory zones to 1 big zone */	162	/* Merge all memory zones to 1 big zone */
145	zone_merge_all();	163	zone_merge_all();
146	}	164	}
147		165
148	/* Setup fast SYSCALL/SYSRET */	166	/* Setup fast SYSCALL/SYSRET */
149	syscall_setup_cpu();	167	syscall_setup_cpu();
150	}	168	}
151		169
152	void arch_post_cpu_init()	170	void arch_post_cpu_init()
153	{	171	{
154	#ifdef CONFIG_SMP	172	#ifdef CONFIG_SMP
155	if (config.cpu_active > 1) {	173	if (config.cpu_active > 1) {
156	l_apic_init();	174	l_apic_init();
157	l_apic_debug();	175	l_apic_debug();
158	}	176	}
159	#endif	177	#endif
160	}	178	}
161		179
162	void arch_pre_smp_init(void)	180	void arch_pre_smp_init(void)
163	{	181	{
164	if (config.cpu_active == 1) {	182	if (config.cpu_active == 1) {
165	#ifdef CONFIG_SMP	183	#ifdef CONFIG_SMP
166	acpi_init();	184	acpi_init();
167	#endif /* CONFIG_SMP */	185	#endif /* CONFIG_SMP */
168	}	186	}
169	}	187	}
170		188
171	void arch_post_smp_init(void)	189	void arch_post_smp_init(void)
172	{	190	{
173	devno_t devno = device_assign_devno();	191	devno_t devno = device_assign_devno();
174	/* keyboard controller */	192	/* keyboard controller */
175	(void) i8042_init((i8042_t *) I8042_BASE, devno, IRQ_KBD);	193	(void) i8042_init((i8042_t *) I8042_BASE, devno, IRQ_KBD);
176		194
177	/*	195	/*
178	* This is the necessary evil until the userspace driver is entirely	196	* This is the necessary evil until the userspace driver is entirely
179	* self-sufficient.	197	* self-sufficient.
180	*/	198	*/
181	sysinfo_set_item_val("kbd", NULL, true);	199	sysinfo_set_item_val("kbd", NULL, true);
182	sysinfo_set_item_val("kbd.devno", NULL, devno);	200	sysinfo_set_item_val("kbd.devno", NULL, devno);
183	sysinfo_set_item_val("kbd.inr", NULL, IRQ_KBD);	201	sysinfo_set_item_val("kbd.inr", NULL, IRQ_KBD);
184	}	202	}
185		203
186	void calibrate_delay_loop(void)	204	void calibrate_delay_loop(void)
187	{	205	{
188	i8254_calibrate_delay_loop();	206	i8254_calibrate_delay_loop();
189	if (config.cpu_active == 1) {	207	if (config.cpu_active == 1) {
190	/*	208	/*
191	* This has to be done only on UP.	209	* This has to be done only on UP.
192	* On SMP, i8254 is not used for time keeping and its interrupt pin remains masked.	210	* On SMP, i8254 is not used for time keeping and its interrupt pin remains masked.
193	*/	211	*/
194	i8254_normal_operation();	212	i8254_normal_operation();
195	}	213	}
196	}	214	}
197		215
198	/** Set thread-local-storage pointer	216	/** Set thread-local-storage pointer
199	*	217	*
200	* TLS pointer is set in FS register. Unfortunately the 64-bit	218	* TLS pointer is set in FS register. Unfortunately the 64-bit
201	* part can be set only in CPL0 mode.	219	* part can be set only in CPL0 mode.
202	*	220	*
203	* The specs say, that on %fs:0 there is stored contents of %fs register,	221	* The specs say, that on %fs:0 there is stored contents of %fs register,
204	* we need not to go to CPL0 to read it.	222	* we need not to go to CPL0 to read it.
205	*/	223	*/
206	unative_t sys_tls_set(unative_t addr)	224	unative_t sys_tls_set(unative_t addr)
207	{	225	{
208	THREAD->arch.tls = addr;	226	THREAD->arch.tls = addr;
209	write_msr(AMD_MSR_FS, addr);	227	write_msr(AMD_MSR_FS, addr);
210	return 0;	228	return 0;
211	}	229	}
212		230
213	/** Acquire console back for kernel	231	/** Acquire console back for kernel
214	*	232	*
215	*/	233	*/
216	void arch_grab_console(void)	234	void arch_grab_console(void)
217	{	235	{
218	#ifdef CONFIG_FB	236	#ifdef CONFIG_FB
219	vesa_redraw();	237	vesa_redraw();
220	#else	238	#else
221	ega_redraw();	239	ega_redraw();
222	#endif	240	#endif
223	}	241	}
224		242
225	/** Return console to userspace	243	/** Return console to userspace
226	*	244	*
227	*/	245	*/
228	void arch_release_console(void)	246	void arch_release_console(void)
229	{	247	{
230	}	248	}
231		249
232	/** Construct function pointer	250	/** Construct function pointer
233	*	251	*
234	* @param fptr function pointer structure	252	* @param fptr function pointer structure
235	* @param addr function address	253	* @param addr function address
236	* @param caller calling function address	254	* @param caller calling function address
237	*	255	*
238	* @return address of the function pointer	256	* @return address of the function pointer
239	*	257	*
240	*/	258	*/
241	void arch_construct_function(fncptr_t fptr, void addr, void caller)	259	void arch_construct_function(fncptr_t fptr, void addr, void caller)
242	{	260	{
243	return addr;	261	return addr;
244	}	262	}
245		263
246	/** @}	264	/** @}
247	*/	265	*/
248		266

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/amd64/src/amd64.c @ 4127 – Rev 4017 → 4022