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-rw-r--r--arch/parisc/kernel/.gitignore1
-rw-r--r--arch/parisc/kernel/asm-offsets.c3
-rw-r--r--arch/parisc/kernel/firmware.c69
-rw-r--r--arch/parisc/kernel/head.S2
-rw-r--r--arch/parisc/kernel/ptrace.c429
-rw-r--r--arch/parisc/kernel/real2.S12
-rw-r--r--arch/parisc/kernel/setup.c29
-rw-r--r--arch/parisc/kernel/syscall_table.S8
-rw-r--r--arch/parisc/kernel/time.c20
-rw-r--r--arch/parisc/kernel/unwind.c4
10 files changed, 290 insertions, 287 deletions
diff --git a/arch/parisc/kernel/.gitignore b/arch/parisc/kernel/.gitignore
new file mode 100644
index 000000000000..c5f676c3c224
--- /dev/null
+++ b/arch/parisc/kernel/.gitignore
@@ -0,0 +1 @@
+vmlinux.lds
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index 3efc0b73e4ff..699cf8ef2118 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -290,5 +290,8 @@ int main(void)
DEFINE(EXCDATA_IP, offsetof(struct exception_data, fault_ip));
DEFINE(EXCDATA_SPACE, offsetof(struct exception_data, fault_space));
DEFINE(EXCDATA_ADDR, offsetof(struct exception_data, fault_addr));
+ BLANK();
+ DEFINE(ASM_PDC_RESULT_SIZE, NUM_PDC_RESULT * sizeof(unsigned long));
+ BLANK();
return 0;
}
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 7177a6cd1b7f..03f26bd75bd8 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -71,8 +71,8 @@
#include <asm/processor.h> /* for boot_cpu_data */
static DEFINE_SPINLOCK(pdc_lock);
-static unsigned long pdc_result[32] __attribute__ ((aligned (8)));
-static unsigned long pdc_result2[32] __attribute__ ((aligned (8)));
+extern unsigned long pdc_result[NUM_PDC_RESULT];
+extern unsigned long pdc_result2[NUM_PDC_RESULT];
#ifdef CONFIG_64BIT
#define WIDE_FIRMWARE 0x1
@@ -150,26 +150,40 @@ static void convert_to_wide(unsigned long *addr)
#endif
}
+#ifdef CONFIG_64BIT
+void __init set_firmware_width_unlocked(void)
+{
+ int ret;
+
+ ret = mem_pdc_call(PDC_MODEL, PDC_MODEL_CAPABILITIES,
+ __pa(pdc_result), 0);
+ convert_to_wide(pdc_result);
+ if (pdc_result[0] != NARROW_FIRMWARE)
+ parisc_narrow_firmware = 0;
+}
+
/**
* set_firmware_width - Determine if the firmware is wide or narrow.
*
- * This function must be called before any pdc_* function that uses the convert_to_wide
- * function.
+ * This function must be called before any pdc_* function that uses the
+ * convert_to_wide function.
*/
void __init set_firmware_width(void)
{
-#ifdef CONFIG_64BIT
- int retval;
unsigned long flags;
+ spin_lock_irqsave(&pdc_lock, flags);
+ set_firmware_width_unlocked();
+ spin_unlock_irqrestore(&pdc_lock, flags);
+}
+#else
+void __init set_firmware_width_unlocked(void) {
+ return;
+}
- spin_lock_irqsave(&pdc_lock, flags);
- retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_CAPABILITIES, __pa(pdc_result), 0);
- convert_to_wide(pdc_result);
- if(pdc_result[0] != NARROW_FIRMWARE)
- parisc_narrow_firmware = 0;
- spin_unlock_irqrestore(&pdc_lock, flags);
-#endif
+void __init set_firmware_width(void) {
+ return;
}
+#endif /*CONFIG_64BIT*/
/**
* pdc_emergency_unlock - Unlock the linux pdc lock
@@ -288,6 +302,20 @@ int pdc_chassis_warn(unsigned long *warn)
return retval;
}
+int __init pdc_coproc_cfg_unlocked(struct pdc_coproc_cfg *pdc_coproc_info)
+{
+ int ret;
+
+ ret = mem_pdc_call(PDC_COPROC, PDC_COPROC_CFG, __pa(pdc_result));
+ convert_to_wide(pdc_result);
+ pdc_coproc_info->ccr_functional = pdc_result[0];
+ pdc_coproc_info->ccr_present = pdc_result[1];
+ pdc_coproc_info->revision = pdc_result[17];
+ pdc_coproc_info->model = pdc_result[18];
+
+ return ret;
+}
+
/**
* pdc_coproc_cfg - To identify coprocessors attached to the processor.
* @pdc_coproc_info: Return buffer address.
@@ -297,19 +325,14 @@ int pdc_chassis_warn(unsigned long *warn)
*/
int __init pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info)
{
- int retval;
+ int ret;
unsigned long flags;
- spin_lock_irqsave(&pdc_lock, flags);
- retval = mem_pdc_call(PDC_COPROC, PDC_COPROC_CFG, __pa(pdc_result));
- convert_to_wide(pdc_result);
- pdc_coproc_info->ccr_functional = pdc_result[0];
- pdc_coproc_info->ccr_present = pdc_result[1];
- pdc_coproc_info->revision = pdc_result[17];
- pdc_coproc_info->model = pdc_result[18];
- spin_unlock_irqrestore(&pdc_lock, flags);
+ spin_lock_irqsave(&pdc_lock, flags);
+ ret = pdc_coproc_cfg_unlocked(pdc_coproc_info);
+ spin_unlock_irqrestore(&pdc_lock, flags);
- return retval;
+ return ret;
}
/**
diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
index a84e31e82876..0e3d9f9b9e33 100644
--- a/arch/parisc/kernel/head.S
+++ b/arch/parisc/kernel/head.S
@@ -121,7 +121,7 @@ $pgt_fill_loop:
copy %r0,%r2
/* And the RFI Target address too */
- load32 start_kernel,%r11
+ load32 start_parisc,%r11
/* And the initial task pointer */
load32 init_thread_union,%r6
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 49c637970789..90904f9dfc50 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -4,6 +4,7 @@
* Copyright (C) 2000 Hewlett-Packard Co, Linuxcare Inc.
* Copyright (C) 2000 Matthew Wilcox <matthew@wil.cx>
* Copyright (C) 2000 David Huggins-Daines <dhd@debian.org>
+ * Copyright (C) 2008 Helge Deller <deller@gmx.de>
*/
#include <linux/kernel.h>
@@ -27,15 +28,149 @@
/* PSW bits we allow the debugger to modify */
#define USER_PSW_BITS (PSW_N | PSW_V | PSW_CB)
-#undef DEBUG_PTRACE
+/*
+ * Called by kernel/ptrace.c when detaching..
+ *
+ * Make sure single step bits etc are not set.
+ */
+void ptrace_disable(struct task_struct *task)
+{
+ task->ptrace &= ~(PT_SINGLESTEP|PT_BLOCKSTEP);
-#ifdef DEBUG_PTRACE
-#define DBG(x...) printk(x)
-#else
-#define DBG(x...)
-#endif
+ /* make sure the trap bits are not set */
+ pa_psw(task)->r = 0;
+ pa_psw(task)->t = 0;
+ pa_psw(task)->h = 0;
+ pa_psw(task)->l = 0;
+}
+
+/*
+ * The following functions are called by ptrace_resume() when
+ * enabling or disabling single/block tracing.
+ */
+void user_disable_single_step(struct task_struct *task)
+{
+ ptrace_disable(task);
+}
+
+void user_enable_single_step(struct task_struct *task)
+{
+ task->ptrace &= ~PT_BLOCKSTEP;
+ task->ptrace |= PT_SINGLESTEP;
+
+ if (pa_psw(task)->n) {
+ struct siginfo si;
+
+ /* Nullified, just crank over the queue. */
+ task_regs(task)->iaoq[0] = task_regs(task)->iaoq[1];
+ task_regs(task)->iasq[0] = task_regs(task)->iasq[1];
+ task_regs(task)->iaoq[1] = task_regs(task)->iaoq[0] + 4;
+ pa_psw(task)->n = 0;
+ pa_psw(task)->x = 0;
+ pa_psw(task)->y = 0;
+ pa_psw(task)->z = 0;
+ pa_psw(task)->b = 0;
+ ptrace_disable(task);
+ /* Don't wake up the task, but let the
+ parent know something happened. */
+ si.si_code = TRAP_TRACE;
+ si.si_addr = (void __user *) (task_regs(task)->iaoq[0] & ~3);
+ si.si_signo = SIGTRAP;
+ si.si_errno = 0;
+ force_sig_info(SIGTRAP, &si, task);
+ /* notify_parent(task, SIGCHLD); */
+ return;
+ }
+
+ /* Enable recovery counter traps. The recovery counter
+ * itself will be set to zero on a task switch. If the
+ * task is suspended on a syscall then the syscall return
+ * path will overwrite the recovery counter with a suitable
+ * value such that it traps once back in user space. We
+ * disable interrupts in the tasks PSW here also, to avoid
+ * interrupts while the recovery counter is decrementing.
+ */
+ pa_psw(task)->r = 1;
+ pa_psw(task)->t = 0;
+ pa_psw(task)->h = 0;
+ pa_psw(task)->l = 0;
+}
+
+void user_enable_block_step(struct task_struct *task)
+{
+ task->ptrace &= ~PT_SINGLESTEP;
+ task->ptrace |= PT_BLOCKSTEP;
+
+ /* Enable taken branch trap. */
+ pa_psw(task)->r = 0;
+ pa_psw(task)->t = 1;
+ pa_psw(task)->h = 0;
+ pa_psw(task)->l = 0;
+}
+
+long arch_ptrace(struct task_struct *child, long request, long addr, long data)
+{
+ unsigned long tmp;
+ long ret = -EIO;
-#ifdef CONFIG_64BIT
+ switch (request) {
+
+ /* Read the word at location addr in the USER area. For ptraced
+ processes, the kernel saves all regs on a syscall. */
+ case PTRACE_PEEKUSR:
+ if ((addr & (sizeof(long)-1)) ||
+ (unsigned long) addr >= sizeof(struct pt_regs))
+ break;
+ tmp = *(unsigned long *) ((char *) task_regs(child) + addr);
+ ret = put_user(tmp, (unsigned long *) data);
+ break;
+
+ /* Write the word at location addr in the USER area. This will need
+ to change when the kernel no longer saves all regs on a syscall.
+ FIXME. There is a problem at the moment in that r3-r18 are only
+ saved if the process is ptraced on syscall entry, and even then
+ those values are overwritten by actual register values on syscall
+ exit. */
+ case PTRACE_POKEUSR:
+ /* Some register values written here may be ignored in
+ * entry.S:syscall_restore_rfi; e.g. iaoq is written with
+ * r31/r31+4, and not with the values in pt_regs.
+ */
+ if (addr == PT_PSW) {
+ /* Allow writing to Nullify, Divide-step-correction,
+ * and carry/borrow bits.
+ * BEWARE, if you set N, and then single step, it won't
+ * stop on the nullified instruction.
+ */
+ data &= USER_PSW_BITS;
+ task_regs(child)->gr[0] &= ~USER_PSW_BITS;
+ task_regs(child)->gr[0] |= data;
+ ret = 0;
+ break;
+ }
+
+ if ((addr & (sizeof(long)-1)) ||
+ (unsigned long) addr >= sizeof(struct pt_regs))
+ break;
+ if ((addr >= PT_GR1 && addr <= PT_GR31) ||
+ addr == PT_IAOQ0 || addr == PT_IAOQ1 ||
+ (addr >= PT_FR0 && addr <= PT_FR31 + 4) ||
+ addr == PT_SAR) {
+ *(unsigned long *) ((char *) task_regs(child) + addr) = data;
+ ret = 0;
+ }
+ break;
+
+ default:
+ ret = ptrace_request(child, request, addr, data);
+ break;
+ }
+
+ return ret;
+}
+
+
+#ifdef CONFIG_COMPAT
/* This function is needed to translate 32 bit pt_regs offsets in to
* 64 bit pt_regs offsets. For example, a 32 bit gdb under a 64 bit kernel
@@ -61,106 +196,25 @@ static long translate_usr_offset(long offset)
else
return -1;
}
-#endif
-/*
- * Called by kernel/ptrace.c when detaching..
- *
- * Make sure single step bits etc are not set.
- */
-void ptrace_disable(struct task_struct *child)
+long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
+ compat_ulong_t addr, compat_ulong_t data)
{
- /* make sure the trap bits are not set */
- pa_psw(child)->r = 0;
- pa_psw(child)->t = 0;
- pa_psw(child)->h = 0;
- pa_psw(child)->l = 0;
-}
-
-long arch_ptrace(struct task_struct *child, long request, long addr, long data)
-{
- long ret;
-#ifdef DEBUG_PTRACE
- long oaddr=addr, odata=data;
-#endif
+ compat_uint_t tmp;
+ long ret = -EIO;
switch (request) {
- case PTRACE_PEEKTEXT: /* read word at location addr. */
- case PTRACE_PEEKDATA: {
-#ifdef CONFIG_64BIT
- if (__is_compat_task(child)) {
- int copied;
- unsigned int tmp;
-
- addr &= 0xffffffffL;
- copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
- ret = -EIO;
- if (copied != sizeof(tmp))
- goto out_tsk;
- ret = put_user(tmp,(unsigned int *) data);
- DBG("sys_ptrace(PEEK%s, %d, %lx, %lx) returning %ld, data %x\n",
- request == PTRACE_PEEKTEXT ? "TEXT" : "DATA",
- pid, oaddr, odata, ret, tmp);
- }
- else
-#endif
- ret = generic_ptrace_peekdata(child, addr, data);
- goto out_tsk;
- }
- /* when I and D space are separate, this will have to be fixed. */
- case PTRACE_POKETEXT: /* write the word at location addr. */
- case PTRACE_POKEDATA:
- ret = 0;
-#ifdef CONFIG_64BIT
- if (__is_compat_task(child)) {
- unsigned int tmp = (unsigned int)data;
- DBG("sys_ptrace(POKE%s, %d, %lx, %lx)\n",
- request == PTRACE_POKETEXT ? "TEXT" : "DATA",
- pid, oaddr, odata);
- addr &= 0xffffffffL;
- if (access_process_vm(child, addr, &tmp, sizeof(tmp), 1) == sizeof(tmp))
- goto out_tsk;
- }
- else
-#endif
- {
- if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data))
- goto out_tsk;
- }
- ret = -EIO;
- goto out_tsk;
-
- /* Read the word at location addr in the USER area. For ptraced
- processes, the kernel saves all regs on a syscall. */
- case PTRACE_PEEKUSR: {
- ret = -EIO;
-#ifdef CONFIG_64BIT
- if (__is_compat_task(child)) {
- unsigned int tmp;
-
- if (addr & (sizeof(int)-1))
- goto out_tsk;
- if ((addr = translate_usr_offset(addr)) < 0)
- goto out_tsk;
-
- tmp = *(unsigned int *) ((char *) task_regs(child) + addr);
- ret = put_user(tmp, (unsigned int *) data);
- DBG("sys_ptrace(PEEKUSR, %d, %lx, %lx) returning %ld, addr %lx, data %x\n",
- pid, oaddr, odata, ret, addr, tmp);
- }
- else
-#endif
- {
- unsigned long tmp;
+ case PTRACE_PEEKUSR:
+ if (addr & (sizeof(compat_uint_t)-1))
+ break;
+ addr = translate_usr_offset(addr);
+ if (addr < 0)
+ break;
- if ((addr & (sizeof(long)-1)) || (unsigned long) addr >= sizeof(struct pt_regs))
- goto out_tsk;
- tmp = *(unsigned long *) ((char *) task_regs(child) + addr);
- ret = put_user(tmp, (unsigned long *) data);
- }
- goto out_tsk;
- }
+ tmp = *(compat_uint_t *) ((char *) task_regs(child) + addr);
+ ret = put_user(tmp, (compat_uint_t *) (unsigned long) data);
+ break;
/* Write the word at location addr in the USER area. This will need
to change when the kernel no longer saves all regs on a syscall.
@@ -169,185 +223,46 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
those values are overwritten by actual register values on syscall
exit. */
case PTRACE_POKEUSR:
- ret = -EIO;
/* Some register values written here may be ignored in
* entry.S:syscall_restore_rfi; e.g. iaoq is written with
* r31/r31+4, and not with the values in pt_regs.
*/
- /* PT_PSW=0, so this is valid for 32 bit processes under 64
- * bit kernels.
- */
if (addr == PT_PSW) {
- /* PT_PSW=0, so this is valid for 32 bit processes
- * under 64 bit kernels.
- *
- * Allow writing to Nullify, Divide-step-correction,
- * and carry/borrow bits.
- * BEWARE, if you set N, and then single step, it won't
- * stop on the nullified instruction.
+ /* Since PT_PSW==0, it is valid for 32 bit processes
+ * under 64 bit kernels as well.
*/
- DBG("sys_ptrace(POKEUSR, %d, %lx, %lx)\n",
- pid, oaddr, odata);
- data &= USER_PSW_BITS;
- task_regs(child)->gr[0] &= ~USER_PSW_BITS;
- task_regs(child)->gr[0] |= data;
- ret = 0;
- goto out_tsk;
- }
-#ifdef CONFIG_64BIT
- if (__is_compat_task(child)) {
- if (addr & (sizeof(int)-1))
- goto out_tsk;
- if ((addr = translate_usr_offset(addr)) < 0)
- goto out_tsk;
- DBG("sys_ptrace(POKEUSR, %d, %lx, %lx) addr %lx\n",
- pid, oaddr, odata, addr);
+ ret = arch_ptrace(child, request, addr, data);
+ } else {
+ if (addr & (sizeof(compat_uint_t)-1))
+ break;
+ addr = translate_usr_offset(addr);
+ if (addr < 0)
+ break;
if (addr >= PT_FR0 && addr <= PT_FR31 + 4) {
/* Special case, fp regs are 64 bits anyway */
- *(unsigned int *) ((char *) task_regs(child) + addr) = data;
+ *(__u64 *) ((char *) task_regs(child) + addr) = data;
ret = 0;
}
else if ((addr >= PT_GR1+4 && addr <= PT_GR31+4) ||
addr == PT_IAOQ0+4 || addr == PT_IAOQ1+4 ||
addr == PT_SAR+4) {
/* Zero the top 32 bits */
- *(unsigned int *) ((char *) task_regs(child) + addr - 4) = 0;
- *(unsigned int *) ((char *) task_regs(child) + addr) = data;
+ *(__u32 *) ((char *) task_regs(child) + addr - 4) = 0;
+ *(__u32 *) ((char *) task_regs(child) + addr) = data;
ret = 0;
}
- goto out_tsk;
}
- else
-#endif
- {
- if ((addr & (sizeof(long)-1)) || (unsigned long) addr >= sizeof(struct pt_regs))
- goto out_tsk;
- if ((addr >= PT_GR1 && addr <= PT_GR31) ||
- addr == PT_IAOQ0 || addr == PT_IAOQ1 ||
- (addr >= PT_FR0 && addr <= PT_FR31 + 4) ||
- addr == PT_SAR) {
- *(unsigned long *) ((char *) task_regs(child) + addr) = data;
- ret = 0;
- }
- goto out_tsk;
- }
-
- case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
- case PTRACE_CONT:
- ret = -EIO;
- DBG("sys_ptrace(%s)\n",
- request == PTRACE_SYSCALL ? "SYSCALL" : "CONT");
- if (!valid_signal(data))
- goto out_tsk;
- child->ptrace &= ~(PT_SINGLESTEP|PT_BLOCKSTEP);
- if (request == PTRACE_SYSCALL) {
- set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- } else {
- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- }
- child->exit_code = data;
- goto out_wake_notrap;
-
- case PTRACE_KILL:
- /*
- * make the child exit. Best I can do is send it a
- * sigkill. perhaps it should be put in the status
- * that it wants to exit.
- */
- ret = 0;
- DBG("sys_ptrace(KILL)\n");
- if (child->exit_state == EXIT_ZOMBIE) /* already dead */
- goto out_tsk;
- child->exit_code = SIGKILL;
- goto out_wake_notrap;
-
- case PTRACE_SINGLEBLOCK:
- DBG("sys_ptrace(SINGLEBLOCK)\n");
- ret = -EIO;
- if (!valid_signal(data))
- goto out_tsk;
- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- child->ptrace &= ~PT_SINGLESTEP;
- child->ptrace |= PT_BLOCKSTEP;
- child->exit_code = data;
-
- /* Enable taken branch trap. */
- pa_psw(child)->r = 0;
- pa_psw(child)->t = 1;
- pa_psw(child)->h = 0;
- pa_psw(child)->l = 0;
- goto out_wake;
-
- case PTRACE_SINGLESTEP:
- DBG("sys_ptrace(SINGLESTEP)\n");
- ret = -EIO;
- if (!valid_signal(data))
- goto out_tsk;
-
- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- child->ptrace &= ~PT_BLOCKSTEP;
- child->ptrace |= PT_SINGLESTEP;
- child->exit_code = data;
-
- if (pa_psw(child)->n) {
- struct siginfo si;
-
- /* Nullified, just crank over the queue. */
- task_regs(child)->iaoq[0] = task_regs(child)->iaoq[1];
- task_regs(child)->iasq[0] = task_regs(child)->iasq[1];
- task_regs(child)->iaoq[1] = task_regs(child)->iaoq[0] + 4;
- pa_psw(child)->n = 0;
- pa_psw(child)->x = 0;
- pa_psw(child)->y = 0;
- pa_psw(child)->z = 0;
- pa_psw(child)->b = 0;
- ptrace_disable(child);
- /* Don't wake up the child, but let the
- parent know something happened. */
- si.si_code = TRAP_TRACE;
- si.si_addr = (void __user *) (task_regs(child)->iaoq[0] & ~3);
- si.si_signo = SIGTRAP;
- si.si_errno = 0;
- force_sig_info(SIGTRAP, &si, child);
- //notify_parent(child, SIGCHLD);
- //ret = 0;
- goto out_wake;
- }
-
- /* Enable recovery counter traps. The recovery counter
- * itself will be set to zero on a task switch. If the
- * task is suspended on a syscall then the syscall return
- * path will overwrite the recovery counter with a suitable
- * value such that it traps once back in user space. We
- * disable interrupts in the childs PSW here also, to avoid
- * interrupts while the recovery counter is decrementing.
- */
- pa_psw(child)->r = 1;
- pa_psw(child)->t = 0;
- pa_psw(child)->h = 0;
- pa_psw(child)->l = 0;
- /* give it a chance to run. */
- goto out_wake;
-
- case PTRACE_GETEVENTMSG:
- ret = put_user(child->ptrace_message, (unsigned int __user *) data);
- goto out_tsk;
+ break;
default:
- ret = ptrace_request(child, request, addr, data);
- goto out_tsk;
+ ret = compat_ptrace_request(child, request, addr, data);
+ break;
}
-out_wake_notrap:
- ptrace_disable(child);
-out_wake:
- wake_up_process(child);
- ret = 0;
-out_tsk:
- DBG("arch_ptrace(%ld, %d, %lx, %lx) returning %ld\n",
- request, pid, oaddr, odata, ret);
return ret;
}
+#endif
+
void syscall_trace(void)
{
diff --git a/arch/parisc/kernel/real2.S b/arch/parisc/kernel/real2.S
index 7a92695d95a6..5f3d3a1f9037 100644
--- a/arch/parisc/kernel/real2.S
+++ b/arch/parisc/kernel/real2.S
@@ -8,12 +8,24 @@
*
*/
+#include <asm/pdc.h>
#include <asm/psw.h>
#include <asm/assembly.h>
+#include <asm/asm-offsets.h>
#include <linux/linkage.h>
+
.section .bss
+
+ .export pdc_result
+ .export pdc_result2
+ .align 8
+pdc_result:
+ .block ASM_PDC_RESULT_SIZE
+pdc_result2:
+ .block ASM_PDC_RESULT_SIZE
+
.export real_stack
.export real32_stack
.export real64_stack
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 39e7c5a5946a..7d27853ff8c8 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -44,6 +44,7 @@
#include <asm/pdc_chassis.h>
#include <asm/io.h>
#include <asm/setup.h>
+#include <asm/unwind.h>
static char __initdata command_line[COMMAND_LINE_SIZE];
@@ -123,6 +124,7 @@ void __init setup_arch(char **cmdline_p)
#ifdef CONFIG_64BIT
extern int parisc_narrow_firmware;
#endif
+ unwind_init();
init_per_cpu(smp_processor_id()); /* Set Modes & Enable FP */
@@ -368,6 +370,31 @@ static int __init parisc_init(void)
return 0;
}
-
arch_initcall(parisc_init);
+void start_parisc(void)
+{
+ extern void start_kernel(void);
+
+ int ret, cpunum;
+ struct pdc_coproc_cfg coproc_cfg;
+
+ cpunum = smp_processor_id();
+
+ set_firmware_width_unlocked();
+
+ ret = pdc_coproc_cfg_unlocked(&coproc_cfg);
+ if (ret >= 0 && coproc_cfg.ccr_functional) {
+ mtctl(coproc_cfg.ccr_functional, 10);
+
+ cpu_data[cpunum].fp_rev = coproc_cfg.revision;
+ cpu_data[cpunum].fp_model = coproc_cfg.model;
+
+ asm volatile ("fstd %fr0,8(%sp)");
+ } else {
+ panic("must have an fpu to boot linux");
+ }
+
+ start_kernel();
+ // not reached
+}
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index c7e59f548817..303d2b647e41 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -87,7 +87,7 @@
ENTRY_SAME(setuid)
ENTRY_SAME(getuid)
ENTRY_COMP(stime) /* 25 */
- ENTRY_SAME(ptrace)
+ ENTRY_COMP(ptrace)
ENTRY_SAME(alarm)
/* see stat comment */
ENTRY_COMP(newfstat)
@@ -407,6 +407,12 @@
ENTRY_SAME(timerfd_create)
ENTRY_COMP(timerfd_settime)
ENTRY_COMP(timerfd_gettime)
+ ENTRY_COMP(signalfd4)
+ ENTRY_SAME(eventfd2) /* 310 */
+ ENTRY_SAME(epoll_create1)
+ ENTRY_SAME(dup3)
+ ENTRY_SAME(pipe2)
+ ENTRY_SAME(inotify_init1)
/* Nothing yet */
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 24be86bba94d..4d09203bc693 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -23,6 +23,7 @@
#include <linux/smp.h>
#include <linux/profile.h>
#include <linux/clocksource.h>
+#include <linux/platform_device.h>
#include <asm/uaccess.h>
#include <asm/io.h>
@@ -215,6 +216,24 @@ void __init start_cpu_itimer(void)
cpu_data[cpu].it_value = next_tick;
}
+struct platform_device rtc_parisc_dev = {
+ .name = "rtc-parisc",
+ .id = -1,
+};
+
+static int __init rtc_init(void)
+{
+ int ret;
+
+ ret = platform_device_register(&rtc_parisc_dev);
+ if (ret < 0)
+ printk(KERN_ERR "unable to register rtc device...\n");
+
+ /* not necessarily an error */
+ return 0;
+}
+module_init(rtc_init);
+
void __init time_init(void)
{
static struct pdc_tod tod_data;
@@ -245,4 +264,3 @@ void __init time_init(void)
xtime.tv_nsec = 0;
}
}
-
diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 701b2d2d8882..6773c582e457 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -170,7 +170,7 @@ void unwind_table_remove(struct unwind_table *table)
}
/* Called from setup_arch to import the kernel unwind info */
-static int unwind_init(void)
+int unwind_init(void)
{
long start, stop;
register unsigned long gp __asm__ ("r27");
@@ -417,5 +417,3 @@ int unwind_to_user(struct unwind_frame_info *info)
return ret;
}
-
-module_init(unwind_init);
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-10 13:44:44 +0000