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-rw-r--r--arch/hexagon/include/asm/Kbuild33
-rw-r--r--arch/hexagon/include/asm/futex.h5
-rw-r--r--arch/hexagon/include/asm/page.h3
-rw-r--r--arch/hexagon/include/asm/pgtable.h2
-rw-r--r--arch/hexagon/include/asm/uaccess.h1
-rw-r--r--arch/hexagon/include/asm/vermagic.h (renamed from arch/hexagon/include/asm/module.h)8
-rw-r--r--arch/hexagon/kernel/smp.c22
-rw-r--r--arch/hexagon/kernel/time.c11
-rw-r--r--arch/hexagon/mm/vm_fault.c5
9 files changed, 23 insertions, 67 deletions
diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild
index 84bb1ed1b931..373964bb177e 100644
--- a/arch/hexagon/include/asm/Kbuild
+++ b/arch/hexagon/include/asm/Kbuild
@@ -1,39 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
-generic-y += barrier.h
-generic-y += bug.h
-generic-y += bugs.h
-generic-y += compat.h
-generic-y += current.h
-generic-y += device.h
-generic-y += div64.h
-generic-y += dma-mapping.h
-generic-y += emergency-restart.h
generic-y += extable.h
-generic-y += fb.h
-generic-y += ftrace.h
-generic-y += hardirq.h
-generic-y += hw_irq.h
generic-y += iomap.h
-generic-y += irq_regs.h
-generic-y += irq_work.h
-generic-y += kdebug.h
-generic-y += kmap_types.h
-generic-y += kprobes.h
generic-y += kvm_para.h
-generic-y += local.h
generic-y += local64.h
generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
-generic-y += mmiowb.h
-generic-y += pci.h
-generic-y += percpu.h
-generic-y += preempt.h
-generic-y += sections.h
-generic-y += serial.h
-generic-y += shmparam.h
-generic-y += topology.h
-generic-y += trace_clock.h
-generic-y += unaligned.h
-generic-y += vga.h
-generic-y += word-at-a-time.h
-generic-y += xor.h
diff --git a/arch/hexagon/include/asm/futex.h b/arch/hexagon/include/asm/futex.h
index 0191f7c7193e..6b9c554aee78 100644
--- a/arch/hexagon/include/asm/futex.h
+++ b/arch/hexagon/include/asm/futex.h
@@ -36,7 +36,8 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
{
int oldval = 0, ret;
- pagefault_disable();
+ if (!access_ok(uaddr, sizeof(u32)))
+ return -EFAULT;
switch (op) {
case FUTEX_OP_SET:
@@ -62,8 +63,6 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
ret = -ENOSYS;
}
- pagefault_enable();
-
if (!ret)
*oval = oldval;
diff --git a/arch/hexagon/include/asm/page.h b/arch/hexagon/include/asm/page.h
index ee31f36f48f3..7cbf719c578e 100644
--- a/arch/hexagon/include/asm/page.h
+++ b/arch/hexagon/include/asm/page.h
@@ -93,8 +93,7 @@ struct page;
#define virt_to_page(kaddr) pfn_to_page(PFN_DOWN(__pa(kaddr)))
/* Default vm area behavior is non-executable. */
-#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | \
- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+#define VM_DATA_DEFAULT_FLAGS VM_DATA_FLAGS_NON_EXEC
#define pfn_valid(pfn) ((pfn) < max_mapnr)
#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
diff --git a/arch/hexagon/include/asm/pgtable.h b/arch/hexagon/include/asm/pgtable.h
index 2fec20ad939e..d383e8bea5b2 100644
--- a/arch/hexagon/include/asm/pgtable.h
+++ b/arch/hexagon/include/asm/pgtable.h
@@ -158,8 +158,6 @@ extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; /* located in head.S */
/* Seems to be zero even in architectures where the zero page is firewalled? */
#define FIRST_USER_ADDRESS 0UL
-#define pte_special(pte) 0
-#define pte_mkspecial(pte) (pte)
/* HUGETLB not working currently */
#ifdef CONFIG_HUGETLB_PAGE
diff --git a/arch/hexagon/include/asm/uaccess.h b/arch/hexagon/include/asm/uaccess.h
index 00cb38faad0c..c1019a736ff1 100644
--- a/arch/hexagon/include/asm/uaccess.h
+++ b/arch/hexagon/include/asm/uaccess.h
@@ -10,7 +10,6 @@
/*
* User space memory access functions
*/
-#include <linux/mm.h>
#include <asm/sections.h>
/*
diff --git a/arch/hexagon/include/asm/module.h b/arch/hexagon/include/asm/vermagic.h
index e8de4fe03543..0e8dedc8c486 100644
--- a/arch/hexagon/include/asm/module.h
+++ b/arch/hexagon/include/asm/vermagic.h
@@ -3,11 +3,11 @@
* Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
*/
-#ifndef _ASM_MODULE_H
-#define _ASM_MODULE_H
+#ifndef _ASM_VERMAGIC_H
+#define _ASM_VERMAGIC_H
-#include <asm-generic/module.h>
+#include <linux/stringify.h>
#define MODULE_ARCH_VERMAGIC __stringify(PROCESSOR_MODEL_NAME) " "
-#endif
+#endif /* _ASM_VERMAGIC_H */
diff --git a/arch/hexagon/kernel/smp.c b/arch/hexagon/kernel/smp.c
index 0bbbe652a513..619c56420aa0 100644
--- a/arch/hexagon/kernel/smp.c
+++ b/arch/hexagon/kernel/smp.c
@@ -114,12 +114,6 @@ void send_ipi(const struct cpumask *cpumask, enum ipi_message_type msg)
local_irq_restore(flags);
}
-static struct irqaction ipi_intdesc = {
- .handler = handle_ipi,
- .flags = IRQF_TRIGGER_RISING,
- .name = "ipi_handler"
-};
-
void __init smp_prepare_boot_cpu(void)
{
}
@@ -132,8 +126,8 @@ void __init smp_prepare_boot_cpu(void)
void start_secondary(void)
{
- unsigned int cpu;
unsigned long thread_ptr;
+ unsigned int cpu, irq;
/* Calculate thread_info pointer from stack pointer */
__asm__ __volatile__(
@@ -155,7 +149,10 @@ void start_secondary(void)
cpu = smp_processor_id();
- setup_irq(BASE_IPI_IRQ + cpu, &ipi_intdesc);
+ irq = BASE_IPI_IRQ + cpu;
+ if (request_irq(irq, handle_ipi, IRQF_TRIGGER_RISING, "ipi_handler",
+ NULL))
+ pr_err("Failed to request irq %u (ipi_handler)\n", irq);
/* Register the clock_event dummy */
setup_percpu_clockdev();
@@ -201,7 +198,7 @@ void __init smp_cpus_done(unsigned int max_cpus)
void __init smp_prepare_cpus(unsigned int max_cpus)
{
- int i;
+ int i, irq = BASE_IPI_IRQ;
/*
* should eventually have some sort of machine
@@ -213,8 +210,11 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
set_cpu_present(i, true);
/* Also need to register the interrupts for IPI */
- if (max_cpus > 1)
- setup_irq(BASE_IPI_IRQ, &ipi_intdesc);
+ if (max_cpus > 1) {
+ if (request_irq(irq, handle_ipi, IRQF_TRIGGER_RISING,
+ "ipi_handler", NULL))
+ pr_err("Failed to request irq %d (ipi_handler)\n", irq);
+ }
}
void smp_send_reschedule(int cpu)
diff --git a/arch/hexagon/kernel/time.c b/arch/hexagon/kernel/time.c
index f99e9257bed4..feffe527ac92 100644
--- a/arch/hexagon/kernel/time.c
+++ b/arch/hexagon/kernel/time.c
@@ -143,13 +143,6 @@ static irqreturn_t timer_interrupt(int irq, void *devid)
return IRQ_HANDLED;
}
-/* This should also be pulled from devtree */
-static struct irqaction rtos_timer_intdesc = {
- .handler = timer_interrupt,
- .flags = IRQF_TIMER | IRQF_TRIGGER_RISING,
- .name = "rtos_timer"
-};
-
/*
* time_init_deferred - called by start_kernel to set up timer/clock source
*
@@ -163,6 +156,7 @@ void __init time_init_deferred(void)
{
struct resource *resource = NULL;
struct clock_event_device *ce_dev = &hexagon_clockevent_dev;
+ unsigned long flag = IRQF_TIMER | IRQF_TRIGGER_RISING;
ce_dev->cpumask = cpu_all_mask;
@@ -195,7 +189,8 @@ void __init time_init_deferred(void)
#endif
clockevents_register_device(ce_dev);
- setup_irq(ce_dev->irq, &rtos_timer_intdesc);
+ if (request_irq(ce_dev->irq, timer_interrupt, flag, "rtos_timer", NULL))
+ pr_err("Failed to register rtos_timer interrupt\n");
}
void __init time_init(void)
diff --git a/arch/hexagon/mm/vm_fault.c b/arch/hexagon/mm/vm_fault.c
index b3bc71680ae4..72334b26317a 100644
--- a/arch/hexagon/mm/vm_fault.c
+++ b/arch/hexagon/mm/vm_fault.c
@@ -41,7 +41,7 @@ void do_page_fault(unsigned long address, long cause, struct pt_regs *regs)
int si_code = SEGV_MAPERR;
vm_fault_t fault;
const struct exception_table_entry *fixup;
- unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
+ unsigned int flags = FAULT_FLAG_DEFAULT;
/*
* If we're in an interrupt or have no user context,
@@ -91,7 +91,7 @@ good_area:
fault = handle_mm_fault(vma, address, flags);
- if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+ if (fault_signal_pending(fault, regs))
return;
/* The most common case -- we are done. */
@@ -102,7 +102,6 @@ good_area:
else
current->min_flt++;
if (fault & VM_FAULT_RETRY) {
- flags &= ~FAULT_FLAG_ALLOW_RETRY;
flags |= FAULT_FLAG_TRIED;
goto retry;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.