2 * Copyright (c) 2005 Jakub Jermar
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
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
15 * derived from this software without specific prior written permission.
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
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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
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
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 /** @addtogroup sparc64
38 #include <arch/trap/trap.h>
39 #include <arch/console.h>
40 #include <proc/thread.h>
41 #include <console/console.h>
42 #include <arch/boot/boot.h>
43 #include <arch/arch.h>
45 #include <arch/mm/page.h>
46 #include <arch/stack.h>
47 #include <genarch/ofw/ofw_tree.h>
48 #include <userspace.h>
53 /** Perform sparc64 specific initialization before main_bsp() is called. */
54 void arch_pre_main(void)
56 /* Copy init task info. */
57 init
.cnt
= bootinfo
.taskmap
.count
;
61 for (i
= 0; i
< bootinfo
.taskmap
.count
; i
++) {
62 init
.tasks
[i
].addr
= (uintptr_t) bootinfo
.taskmap
.tasks
[i
].addr
;
63 init
.tasks
[i
].size
= bootinfo
.taskmap
.tasks
[i
].size
;
66 /* Copy boot allocations info. */
67 ballocs
.base
= bootinfo
.ballocs
.base
;
68 ballocs
.size
= bootinfo
.ballocs
.size
;
70 ofw_tree_init(bootinfo
.ofw_root
);
73 /** Perform sparc64 specific initialization before mm is initialized. */
74 void arch_pre_mm_init(void)
76 if (config
.cpu_active
== 1)
80 /** Perform sparc64 specific initialization afterr mm is initialized. */
81 void arch_post_mm_init(void)
83 if (config
.cpu_active
== 1) {
85 * We have 2^11 different interrupt vectors.
86 * But we only create 128 buckets.
88 irq_init(1 << 11, 128);
90 standalone_sparc64_console_init();
94 void arch_post_cpu_init(void)
98 void arch_pre_smp_init(void)
102 void arch_post_smp_init(void)
104 static thread_t
*t
= NULL
;
109 * Create thread that polls keyboard.
111 t
= thread_create(kkbdpoll
, NULL
, TASK
, 0, "kkbdpoll", true);
113 panic("cannot create kkbdpoll\n");
118 /** Calibrate delay loop.
120 * On sparc64, we implement delay() by waiting for the TICK register to
121 * reach a pre-computed value, as opposed to performing some pre-computed
122 * amount of instructions of known duration. We set the delay_loop_const
123 * to 1 in order to neutralize the multiplication done by delay().
125 void calibrate_delay_loop(void)
127 CPU
->delay_loop_const
= 1;
130 /** Wait several microseconds.
132 * We assume that interrupts are already disabled.
134 * @param t Microseconds to wait.
136 void asm_delay_loop(const uint32_t usec
)
138 uint64_t stop
= tick_read() + (uint64_t) usec
* (uint64_t)
139 CPU
->arch
.clock_frequency
/ 1000000;
141 while (tick_read() < stop
)
145 /** Switch to userspace. */
146 void userspace(uspace_arg_t
*kernel_uarg
)
148 switch_to_userspace((uintptr_t) kernel_uarg
->uspace_entry
,
149 ((uintptr_t) kernel_uarg
->uspace_stack
) + STACK_SIZE
150 - (ALIGN_UP(STACK_ITEM_SIZE
, STACK_ALIGNMENT
) + STACK_BIAS
),
151 (uintptr_t) kernel_uarg
->uspace_uarg
);