summaryrefslogtreecommitdiff
path: root/arch/arc
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arc')
-rw-r--r--arch/arc/Kconfig27
-rw-r--r--arch/arc/include/asm/bitops.h4
-rw-r--r--arch/arc/include/asm/futex.h2
-rw-r--r--arch/arc/include/asm/pgalloc.h5
-rw-r--r--arch/arc/include/uapi/asm/Kbuild25
-rw-r--r--arch/arc/kernel/kgdb.c12
-rw-r--r--arch/arc/kernel/process.c2
-rw-r--r--arch/arc/kernel/setup.c1
-rw-r--r--arch/arc/kernel/signal.c4
-rw-r--r--arch/arc/mm/cache.c2
-rw-r--r--arch/arc/mm/dma.c2
-rw-r--r--arch/arc/mm/fault.c2
-rw-r--r--arch/arc/mm/init.c25
-rw-r--r--arch/arc/plat-axs10x/Kconfig2
-rw-r--r--arch/arc/plat-hsdk/Kconfig2
15 files changed, 24 insertions, 93 deletions
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 6dd783557330..376366a7db81 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -13,12 +13,10 @@ config ARC
select ARCH_HAS_PTE_SPECIAL
select ARCH_HAS_SYNC_DMA_FOR_CPU
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
- select ARCH_HAS_SG_CHAIN
select ARCH_SUPPORTS_ATOMIC_RMW if ARC_HAS_LLSC
select BUILDTIME_EXTABLE_SORT
select CLONE_BACKWARDS
select COMMON_CLK
- select DMA_DIRECT_OPS
select GENERIC_ATOMIC64 if !ISA_ARCV2 || !(ARC_HAS_LL64 && ARC_HAS_LLSC)
select GENERIC_CLOCKEVENTS
select GENERIC_FIND_FIRST_BIT
@@ -26,6 +24,7 @@ config ARC
select GENERIC_IRQ_SHOW
select GENERIC_PCI_IOMAP
select GENERIC_PENDING_IRQ if SMP
+ select GENERIC_SCHED_CLOCK
select GENERIC_SMP_IDLE_THREAD
select HAVE_ARCH_KGDB
select HAVE_ARCH_TRACEHOOK
@@ -46,14 +45,12 @@ config ARC
select OF
select OF_EARLY_FLATTREE
select OF_RESERVED_MEM
+ select PCI_SYSCALL if PCI
select PERF_USE_VMALLOC if ARC_CACHE_VIPT_ALIASING
config ARCH_HAS_CACHE_LINE_SIZE
def_bool y
-config MIGHT_HAVE_PCI
- bool
-
config TRACE_IRQFLAGS_SUPPORT
def_bool y
@@ -542,24 +539,4 @@ config FORCE_MAX_ZONEORDER
default "12" if ARC_HUGEPAGE_16M
default "11"
-menu "Bus Support"
-
-config PCI
- bool "PCI support" if MIGHT_HAVE_PCI
- help
- PCI is the name of a bus system, i.e., the way the CPU talks to
- the other stuff inside your box. Find out if your board/platform
- has PCI.
-
- Note: PCIe support for Synopsys Device will be available only
- when HAPS DX is configured with PCIe RC bitmap. If you have PCI,
- say Y, otherwise N.
-
-config PCI_SYSCALL
- def_bool PCI
-
-source "drivers/pci/Kconfig"
-
-endmenu
-
source "kernel/power/Kconfig"
diff --git a/arch/arc/include/asm/bitops.h b/arch/arc/include/asm/bitops.h
index 8da87feec59a..ee9246184033 100644
--- a/arch/arc/include/asm/bitops.h
+++ b/arch/arc/include/asm/bitops.h
@@ -278,7 +278,7 @@ static inline __attribute__ ((const)) int clz(unsigned int x)
return res;
}
-static inline int constant_fls(int x)
+static inline int constant_fls(unsigned int x)
{
int r = 32;
@@ -312,7 +312,7 @@ static inline int constant_fls(int x)
* @result: [1-32]
* fls(1) = 1, fls(0x80000000) = 32, fls(0) = 0
*/
-static inline __attribute__ ((const)) int fls(unsigned long x)
+static inline __attribute__ ((const)) int fls(unsigned int x)
{
if (__builtin_constant_p(x))
return constant_fls(x);
diff --git a/arch/arc/include/asm/futex.h b/arch/arc/include/asm/futex.h
index eb887dd13e74..c29c3fae6854 100644
--- a/arch/arc/include/asm/futex.h
+++ b/arch/arc/include/asm/futex.h
@@ -126,7 +126,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, u32 expval,
int ret = 0;
u32 existval;
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
+ if (!access_ok(uaddr, sizeof(u32)))
return -EFAULT;
#ifndef CONFIG_ARC_HAS_LLSC
diff --git a/arch/arc/include/asm/pgalloc.h b/arch/arc/include/asm/pgalloc.h
index 3749234b7419..9c9b5a5ebf2e 100644
--- a/arch/arc/include/asm/pgalloc.h
+++ b/arch/arc/include/asm/pgalloc.h
@@ -90,8 +90,7 @@ static inline int __get_order_pte(void)
return get_order(PTRS_PER_PTE * sizeof(pte_t));
}
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
- unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
{
pte_t *pte;
@@ -102,7 +101,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
}
static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pte_alloc_one(struct mm_struct *mm)
{
pgtable_t pte_pg;
struct page *page;
diff --git a/arch/arc/include/uapi/asm/Kbuild b/arch/arc/include/uapi/asm/Kbuild
index 170b5db64afe..0febf1a07c30 100644
--- a/arch/arc/include/uapi/asm/Kbuild
+++ b/arch/arc/include/uapi/asm/Kbuild
@@ -1,29 +1,4 @@
-# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
-generic-y += auxvec.h
-generic-y += bitsperlong.h
-generic-y += bpf_perf_event.h
-generic-y += errno.h
-generic-y += fcntl.h
-generic-y += ioctl.h
-generic-y += ioctls.h
-generic-y += ipcbuf.h
generic-y += kvm_para.h
-generic-y += mman.h
-generic-y += msgbuf.h
-generic-y += param.h
-generic-y += poll.h
-generic-y += posix_types.h
-generic-y += resource.h
-generic-y += sembuf.h
-generic-y += shmbuf.h
-generic-y += siginfo.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += stat.h
-generic-y += statfs.h
-generic-y += termbits.h
-generic-y += termios.h
-generic-y += types.h
generic-y += ucontext.h
diff --git a/arch/arc/kernel/kgdb.c b/arch/arc/kernel/kgdb.c
index 9a3c34af2ae8..96bca9963c63 100644
--- a/arch/arc/kernel/kgdb.c
+++ b/arch/arc/kernel/kgdb.c
@@ -192,19 +192,13 @@ void kgdb_arch_set_pc(struct pt_regs *regs, unsigned long ip)
instruction_pointer(regs) = ip;
}
-static void kgdb_call_nmi_hook(void *ignored)
+void kgdb_call_nmi_hook(void *ignored)
{
+ /* Default implementation passes get_irq_regs() but we don't */
kgdb_nmicallback(raw_smp_processor_id(), NULL);
}
-void kgdb_roundup_cpus(unsigned long flags)
-{
- local_irq_enable();
- smp_call_function(kgdb_call_nmi_hook, NULL, 0);
- local_irq_disable();
-}
-
-struct kgdb_arch arch_kgdb_ops = {
+const struct kgdb_arch arch_kgdb_ops = {
/* breakpoint instruction: TRAP_S 0x3 */
#ifdef CONFIG_CPU_BIG_ENDIAN
.gdb_bpt_instr = {0x78, 0x7e},
diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c
index 8ce6e7235915..641c364fc232 100644
--- a/arch/arc/kernel/process.c
+++ b/arch/arc/kernel/process.c
@@ -61,7 +61,7 @@ SYSCALL_DEFINE3(arc_usr_cmpxchg, int *, uaddr, int, expected, int, new)
/* Z indicates to userspace if operation succeded */
regs->status32 &= ~STATUS_Z_MASK;
- ret = access_ok(VERIFY_WRITE, uaddr, sizeof(*uaddr));
+ ret = access_ok(uaddr, sizeof(*uaddr));
if (!ret)
goto fail;
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index eea8c5ce6335..2e018b8c2e19 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -19,6 +19,7 @@
#include <linux/of_fdt.h>
#include <linux/of.h>
#include <linux/cache.h>
+#include <uapi/linux/mount.h>
#include <asm/sections.h>
#include <asm/arcregs.h>
#include <asm/tlb.h>
diff --git a/arch/arc/kernel/signal.c b/arch/arc/kernel/signal.c
index 48685445002e..1bfb7de696bd 100644
--- a/arch/arc/kernel/signal.c
+++ b/arch/arc/kernel/signal.c
@@ -169,7 +169,7 @@ SYSCALL_DEFINE0(rt_sigreturn)
sf = (struct rt_sigframe __force __user *)(regs->sp);
- if (!access_ok(VERIFY_READ, sf, sizeof(*sf)))
+ if (!access_ok(sf, sizeof(*sf)))
goto badframe;
if (__get_user(magic, &sf->sigret_magic))
@@ -219,7 +219,7 @@ static inline void __user *get_sigframe(struct ksignal *ksig,
frame = (void __user *)((sp - framesize) & ~7);
/* Check that we can actually write to the signal frame */
- if (!access_ok(VERIFY_WRITE, frame, framesize))
+ if (!access_ok(frame, framesize))
frame = NULL;
return frame;
diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c
index cf9619d4efb4..4135abec3fb0 100644
--- a/arch/arc/mm/cache.c
+++ b/arch/arc/mm/cache.c
@@ -1294,7 +1294,7 @@ void __init arc_cache_init_master(void)
/*
* In case of IOC (say IOC+SLC case), pointers above could still be set
* but end up not being relevant as the first function in chain is not
- * called at all for @dma_direct_ops
+ * called at all for devices using coherent DMA.
* arch_sync_dma_for_cpu() -> dma_cache_*() -> __dma_cache_*()
*/
}
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index db203ff69ccf..1525ac00fd02 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -33,7 +33,7 @@ void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
*/
BUG_ON(gfp & __GFP_HIGHMEM);
- page = alloc_pages(gfp, order);
+ page = alloc_pages(gfp | __GFP_ZERO, order);
if (!page)
return NULL;
diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c
index e2d9fc3fea01..a1d723197084 100644
--- a/arch/arc/mm/fault.c
+++ b/arch/arc/mm/fault.c
@@ -142,7 +142,7 @@ good_area:
fault = handle_mm_fault(vma, address, flags);
/* If Pagefault was interrupted by SIGKILL, exit page fault "early" */
- if (unlikely(fatal_signal_pending(current))) {
+ if (fatal_signal_pending(current)) {
if ((fault & VM_FAULT_ERROR) && !(fault & VM_FAULT_RETRY))
up_read(&mm->mmap_sem);
if (user_mode(regs))
diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c
index f8fe5668b30f..43bf4c3a1290 100644
--- a/arch/arc/mm/init.c
+++ b/arch/arc/mm/init.c
@@ -78,24 +78,6 @@ void __init early_init_dt_add_memory_arch(u64 base, u64 size)
base, TO_MB(size), !in_use ? "Not used":"");
}
-#ifdef CONFIG_BLK_DEV_INITRD
-static int __init early_initrd(char *p)
-{
- unsigned long start, size;
- char *endp;
-
- start = memparse(p, &endp);
- if (*endp == ',') {
- size = memparse(endp + 1, NULL);
-
- initrd_start = (unsigned long)__va(start);
- initrd_end = (unsigned long)__va(start + size);
- }
- return 0;
-}
-early_param("initrd", early_initrd);
-#endif
-
/*
* First memory setup routine called from setup_arch()
* 1. setup swapper's mm @init_mm
@@ -140,8 +122,11 @@ void __init setup_arch_memory(void)
memblock_reserve(low_mem_start, __pa(_end) - low_mem_start);
#ifdef CONFIG_BLK_DEV_INITRD
- if (initrd_start)
- memblock_reserve(__pa(initrd_start), initrd_end - initrd_start);
+ if (phys_initrd_size) {
+ memblock_reserve(phys_initrd_start, phys_initrd_size);
+ initrd_start = (unsigned long)__va(phys_initrd_start);
+ initrd_end = initrd_start + phys_initrd_size;
+ }
#endif
early_init_fdt_reserve_self();
diff --git a/arch/arc/plat-axs10x/Kconfig b/arch/arc/plat-axs10x/Kconfig
index 4e0df7b7a248..27b9eb97a6bf 100644
--- a/arch/arc/plat-axs10x/Kconfig
+++ b/arch/arc/plat-axs10x/Kconfig
@@ -11,7 +11,7 @@ menuconfig ARC_PLAT_AXS10X
select DW_APB_ICTL
select GPIO_DWAPB
select OF_GPIO
- select MIGHT_HAVE_PCI
+ select HAVE_PCI
select GENERIC_IRQ_CHIP
select GPIOLIB
select AXS101 if ISA_ARCOMPACT
diff --git a/arch/arc/plat-hsdk/Kconfig b/arch/arc/plat-hsdk/Kconfig
index 9356753c2ed8..f25c085b9874 100644
--- a/arch/arc/plat-hsdk/Kconfig
+++ b/arch/arc/plat-hsdk/Kconfig
@@ -11,4 +11,4 @@ menuconfig ARC_SOC_HSDK
select ARC_HAS_ACCL_REGS
select CLK_HSDK
select RESET_HSDK
- select MIGHT_HAVE_PCI
+ select HAVE_PCI
generated by cgit v1.2.3 (git 2.39.0) at 2025-03-02 03:24:50 +0300