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-rw-r--r--arch/powerpc/Kconfig2
-rw-r--r--arch/powerpc/include/asm/livepatch.h10
-rw-r--r--arch/powerpc/include/asm/thread_info.h10
-rw-r--r--arch/powerpc/include/uapi/asm/stat.h4
-rw-r--r--arch/powerpc/include/uapi/asm/termbits.h182
-rw-r--r--arch/powerpc/kernel/Makefile2
-rw-r--r--arch/powerpc/kernel/irq.c1
-rw-r--r--arch/powerpc/kernel/process.c19
-rw-r--r--arch/powerpc/kernel/ptrace/ptrace-fpu.c20
-rw-r--r--arch/powerpc/kernel/ptrace/ptrace.c3
-rw-r--r--arch/powerpc/kernel/rtas.c4
-rw-r--r--arch/powerpc/kernel/setup_64.c2
-rw-r--r--arch/powerpc/kexec/crash.c2
-rw-r--r--arch/powerpc/mm/nohash/kaslr_booke.c8
-rw-r--r--arch/powerpc/platforms/powernv/Makefile1
-rw-r--r--arch/powerpc/platforms/pseries/papr_scm.c3
16 files changed, 114 insertions, 159 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index be68c1f02b79..c2ce2e60c8f0 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -223,7 +223,6 @@ config PPC
select HAVE_HARDLOCKUP_DETECTOR_PERF if PERF_EVENTS && HAVE_PERF_EVENTS_NMI && !HAVE_HARDLOCKUP_DETECTOR_ARCH
select HAVE_HW_BREAKPOINT if PERF_EVENTS && (PPC_BOOK3S || PPC_8xx)
select HAVE_IOREMAP_PROT
- select HAVE_IRQ_EXIT_ON_IRQ_STACK
select HAVE_IRQ_TIME_ACCOUNTING
select HAVE_KERNEL_GZIP
select HAVE_KERNEL_LZMA if DEFAULT_UIMAGE
@@ -786,7 +785,6 @@ config THREAD_SHIFT
range 13 15
default "15" if PPC_256K_PAGES
default "14" if PPC64
- default "14" if KASAN
default "13"
help
Used to define the stack size. The default is almost always what you
diff --git a/arch/powerpc/include/asm/livepatch.h b/arch/powerpc/include/asm/livepatch.h
index 1c60094ea0cd..d044a1fd4f44 100644
--- a/arch/powerpc/include/asm/livepatch.h
+++ b/arch/powerpc/include/asm/livepatch.h
@@ -7,17 +7,9 @@
#ifndef _ASM_POWERPC_LIVEPATCH_H
#define _ASM_POWERPC_LIVEPATCH_H
-#include <linux/module.h>
-#include <linux/ftrace.h>
+#include <linux/sched.h>
#include <linux/sched/task_stack.h>
-#ifdef CONFIG_LIVEPATCH
-static inline void klp_arch_set_pc(struct ftrace_regs *fregs, unsigned long ip)
-{
- ftrace_instruction_pointer_set(fregs, ip);
-}
-#endif /* CONFIG_LIVEPATCH */
-
#ifdef CONFIG_LIVEPATCH_64
static inline void klp_init_thread_info(struct task_struct *p)
{
diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
index 125328d1b980..af58f1ed3952 100644
--- a/arch/powerpc/include/asm/thread_info.h
+++ b/arch/powerpc/include/asm/thread_info.h
@@ -14,10 +14,16 @@
#ifdef __KERNEL__
-#if defined(CONFIG_VMAP_STACK) && CONFIG_THREAD_SHIFT < PAGE_SHIFT
+#ifdef CONFIG_KASAN
+#define MIN_THREAD_SHIFT (CONFIG_THREAD_SHIFT + 1)
+#else
+#define MIN_THREAD_SHIFT CONFIG_THREAD_SHIFT
+#endif
+
+#if defined(CONFIG_VMAP_STACK) && MIN_THREAD_SHIFT < PAGE_SHIFT
#define THREAD_SHIFT PAGE_SHIFT
#else
-#define THREAD_SHIFT CONFIG_THREAD_SHIFT
+#define THREAD_SHIFT MIN_THREAD_SHIFT
#endif
#define THREAD_SIZE (1 << THREAD_SHIFT)
diff --git a/arch/powerpc/include/uapi/asm/stat.h b/arch/powerpc/include/uapi/asm/stat.h
index a28c9a1201fa..d50901664239 100644
--- a/arch/powerpc/include/uapi/asm/stat.h
+++ b/arch/powerpc/include/uapi/asm/stat.h
@@ -37,8 +37,8 @@ struct stat {
__kernel_mode_t st_mode;
unsigned short st_nlink;
#endif
- __kernel_uid_t st_uid;
- __kernel_gid_t st_gid;
+ __kernel_uid32_t st_uid;
+ __kernel_gid32_t st_gid;
unsigned long st_rdev;
long st_size;
unsigned long st_blksize;
diff --git a/arch/powerpc/include/uapi/asm/termbits.h b/arch/powerpc/include/uapi/asm/termbits.h
index ed18bc61f63d..21dc86dcb2f1 100644
--- a/arch/powerpc/include/uapi/asm/termbits.h
+++ b/arch/powerpc/include/uapi/asm/termbits.h
@@ -9,8 +9,8 @@
* 2 of the License, or (at your option) any later version.
*/
-typedef unsigned char cc_t;
-typedef unsigned int speed_t;
+#include <asm-generic/termbits-common.h>
+
typedef unsigned int tcflag_t;
/*
@@ -64,115 +64,72 @@ struct ktermios {
#define VDISCARD 16
/* c_iflag bits */
-#define IGNBRK 0000001
-#define BRKINT 0000002
-#define IGNPAR 0000004
-#define PARMRK 0000010
-#define INPCK 0000020
-#define ISTRIP 0000040
-#define INLCR 0000100
-#define IGNCR 0000200
-#define ICRNL 0000400
-#define IXON 0001000
-#define IXOFF 0002000
-#define IXANY 0004000
-#define IUCLC 0010000
-#define IMAXBEL 0020000
-#define IUTF8 0040000
+#define IXON 0x0200
+#define IXOFF 0x0400
+#define IUCLC 0x1000
+#define IMAXBEL 0x2000
+#define IUTF8 0x4000
/* c_oflag bits */
-#define OPOST 0000001
-#define ONLCR 0000002
-#define OLCUC 0000004
-
-#define OCRNL 0000010
-#define ONOCR 0000020
-#define ONLRET 0000040
-
-#define OFILL 00000100
-#define OFDEL 00000200
-#define NLDLY 00001400
-#define NL0 00000000
-#define NL1 00000400
-#define NL2 00001000
-#define NL3 00001400
-#define TABDLY 00006000
-#define TAB0 00000000
-#define TAB1 00002000
-#define TAB2 00004000
-#define TAB3 00006000
-#define XTABS 00006000 /* required by POSIX to == TAB3 */
-#define CRDLY 00030000
-#define CR0 00000000
-#define CR1 00010000
-#define CR2 00020000
-#define CR3 00030000
-#define FFDLY 00040000
-#define FF0 00000000
-#define FF1 00040000
-#define BSDLY 00100000
-#define BS0 00000000
-#define BS1 00100000
-#define VTDLY 00200000
-#define VT0 00000000
-#define VT1 00200000
+#define ONLCR 0x00002
+#define OLCUC 0x00004
+#define NLDLY 0x00300
+#define NL0 0x00000
+#define NL1 0x00100
+#define NL2 0x00200
+#define NL3 0x00300
+#define TABDLY 0x00c00
+#define TAB0 0x00000
+#define TAB1 0x00400
+#define TAB2 0x00800
+#define TAB3 0x00c00
+#define XTABS 0x00c00 /* required by POSIX to == TAB3 */
+#define CRDLY 0x03000
+#define CR0 0x00000
+#define CR1 0x01000
+#define CR2 0x02000
+#define CR3 0x03000
+#define FFDLY 0x04000
+#define FF0 0x00000
+#define FF1 0x04000
+#define BSDLY 0x08000
+#define BS0 0x00000
+#define BS1 0x08000
+#define VTDLY 0x10000
+#define VT0 0x00000
+#define VT1 0x10000
/* c_cflag bit meaning */
-#define CBAUD 0000377
-#define B0 0000000 /* hang up */
-#define B50 0000001
-#define B75 0000002
-#define B110 0000003
-#define B134 0000004
-#define B150 0000005
-#define B200 0000006
-#define B300 0000007
-#define B600 0000010
-#define B1200 0000011
-#define B1800 0000012
-#define B2400 0000013
-#define B4800 0000014
-#define B9600 0000015
-#define B19200 0000016
-#define B38400 0000017
-#define EXTA B19200
-#define EXTB B38400
-#define CBAUDEX 0000000
-#define B57600 00020
-#define B115200 00021
-#define B230400 00022
-#define B460800 00023
-#define B500000 00024
-#define B576000 00025
-#define B921600 00026
-#define B1000000 00027
-#define B1152000 00030
-#define B1500000 00031
-#define B2000000 00032
-#define B2500000 00033
-#define B3000000 00034
-#define B3500000 00035
-#define B4000000 00036
-#define BOTHER 00037
-
-#define CIBAUD 077600000
-#define IBSHIFT 16 /* Shift from CBAUD to CIBAUD */
-
-#define CSIZE 00001400
-#define CS5 00000000
-#define CS6 00000400
-#define CS7 00001000
-#define CS8 00001400
-
-#define CSTOPB 00002000
-#define CREAD 00004000
-#define PARENB 00010000
-#define PARODD 00020000
-#define HUPCL 00040000
-
-#define CLOCAL 00100000
-#define CMSPAR 010000000000 /* mark or space (stick) parity */
-#define CRTSCTS 020000000000 /* flow control */
+#define CBAUD 0x000000ff
+#define CBAUDEX 0x00000000
+#define BOTHER 0x0000001f
+#define B57600 0x00000010
+#define B115200 0x00000011
+#define B230400 0x00000012
+#define B460800 0x00000013
+#define B500000 0x00000014
+#define B576000 0x00000015
+#define B921600 0x00000016
+#define B1000000 0x00000017
+#define B1152000 0x00000018
+#define B1500000 0x00000019
+#define B2000000 0x0000001a
+#define B2500000 0x0000001b
+#define B3000000 0x0000001c
+#define B3500000 0x0000001d
+#define B4000000 0x0000001e
+#define CSIZE 0x00000300
+#define CS5 0x00000000
+#define CS6 0x00000100
+#define CS7 0x00000200
+#define CS8 0x00000300
+#define CSTOPB 0x00000400
+#define CREAD 0x00000800
+#define PARENB 0x00001000
+#define PARODD 0x00002000
+#define HUPCL 0x00004000
+#define CLOCAL 0x00008000
+#define CIBAUD 0x00ff0000
/* c_lflag bits */
#define ISIG 0x00000080
@@ -192,17 +149,6 @@ struct ktermios {
#define IEXTEN 0x00000400
#define EXTPROC 0x10000000
-/* Values for the ACTION argument to `tcflow'. */
-#define TCOOFF 0
-#define TCOON 1
-#define TCIOFF 2
-#define TCION 3
-
-/* Values for the QUEUE_SELECTOR argument to `tcflush'. */
-#define TCIFLUSH 0
-#define TCOFLUSH 1
-#define TCIOFLUSH 2
-
/* Values for the OPTIONAL_ACTIONS argument to `tcsetattr'. */
#define TCSANOW 0
#define TCSADRAIN 1
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 2e2a2a9bcf43..f91f0f29a566 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -37,6 +37,8 @@ KASAN_SANITIZE_paca.o := n
KASAN_SANITIZE_setup_64.o := n
KASAN_SANITIZE_mce.o := n
KASAN_SANITIZE_mce_power.o := n
+KASAN_SANITIZE_udbg.o := n
+KASAN_SANITIZE_udbg_16550.o := n
# we have to be particularly careful in ppc64 to exclude code that
# runs with translations off, as we cannot access the shadow with
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index ea38c13936c7..dd09919c3c66 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -63,7 +63,6 @@
#include <asm/machdep.h>
#include <asm/udbg.h>
#include <asm/smp.h>
-#include <asm/livepatch.h>
#include <asm/hw_irq.h>
#include <asm/softirq_stack.h>
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index d00b20c65966..ee0433809621 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1713,10 +1713,11 @@ static void setup_ksp_vsid(struct task_struct *p, unsigned long sp)
/*
* Copy architecture-specific thread state
*/
-int copy_thread(unsigned long clone_flags, unsigned long usp,
- unsigned long kthread_arg, struct task_struct *p,
- unsigned long tls)
+int copy_thread(struct task_struct *p, const struct kernel_clone_args *args)
{
+ unsigned long clone_flags = args->flags;
+ unsigned long usp = args->stack;
+ unsigned long tls = args->tls;
struct pt_regs *childregs, *kregs;
extern void ret_from_fork(void);
extern void ret_from_fork_scv(void);
@@ -1733,18 +1734,18 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
/* Copy registers */
sp -= sizeof(struct pt_regs);
childregs = (struct pt_regs *) sp;
- if (unlikely(p->flags & (PF_KTHREAD | PF_IO_WORKER))) {
+ if (unlikely(args->fn)) {
/* kernel thread */
memset(childregs, 0, sizeof(struct pt_regs));
childregs->gpr[1] = sp + sizeof(struct pt_regs);
/* function */
- if (usp)
- childregs->gpr[14] = ppc_function_entry((void *)usp);
+ if (args->fn)
+ childregs->gpr[14] = ppc_function_entry((void *)args->fn);
#ifdef CONFIG_PPC64
clear_tsk_thread_flag(p, TIF_32BIT);
childregs->softe = IRQS_ENABLED;
#endif
- childregs->gpr[15] = kthread_arg;
+ childregs->gpr[15] = (unsigned long)args->fn_arg;
p->thread.regs = NULL; /* no user register state */
ti->flags |= _TIF_RESTOREALL;
f = ret_from_kernel_thread;
@@ -2157,12 +2158,12 @@ static unsigned long ___get_wchan(struct task_struct *p)
return 0;
do {
- sp = *(unsigned long *)sp;
+ sp = READ_ONCE_NOCHECK(*(unsigned long *)sp);
if (!validate_sp(sp, p, STACK_FRAME_OVERHEAD) ||
task_is_running(p))
return 0;
if (count > 0) {
- ip = ((unsigned long *)sp)[STACK_FRAME_LR_SAVE];
+ ip = READ_ONCE_NOCHECK(((unsigned long *)sp)[STACK_FRAME_LR_SAVE]);
if (!in_sched_functions(ip))
return ip;
}
diff --git a/arch/powerpc/kernel/ptrace/ptrace-fpu.c b/arch/powerpc/kernel/ptrace/ptrace-fpu.c
index 5dca19361316..09c49632bfe5 100644
--- a/arch/powerpc/kernel/ptrace/ptrace-fpu.c
+++ b/arch/powerpc/kernel/ptrace/ptrace-fpu.c
@@ -17,9 +17,13 @@ int ptrace_get_fpr(struct task_struct *child, int index, unsigned long *data)
#ifdef CONFIG_PPC_FPU_REGS
flush_fp_to_thread(child);
- if (fpidx < (PT_FPSCR - PT_FPR0))
- memcpy(data, &child->thread.TS_FPR(fpidx), sizeof(long));
- else
+ if (fpidx < (PT_FPSCR - PT_FPR0)) {
+ if (IS_ENABLED(CONFIG_PPC32))
+ // On 32-bit the index we are passed refers to 32-bit words
+ *data = ((u32 *)child->thread.fp_state.fpr)[fpidx];
+ else
+ memcpy(data, &child->thread.TS_FPR(fpidx), sizeof(long));
+ } else
*data = child->thread.fp_state.fpscr;
#else
*data = 0;
@@ -39,9 +43,13 @@ int ptrace_put_fpr(struct task_struct *child, int index, unsigned long data)
#ifdef CONFIG_PPC_FPU_REGS
flush_fp_to_thread(child);
- if (fpidx < (PT_FPSCR - PT_FPR0))
- memcpy(&child->thread.TS_FPR(fpidx), &data, sizeof(long));
- else
+ if (fpidx < (PT_FPSCR - PT_FPR0)) {
+ if (IS_ENABLED(CONFIG_PPC32))
+ // On 32-bit the index we are passed refers to 32-bit words
+ ((u32 *)child->thread.fp_state.fpr)[fpidx] = data;
+ else
+ memcpy(&child->thread.TS_FPR(fpidx), &data, sizeof(long));
+ } else
child->thread.fp_state.fpscr = data;
#endif
diff --git a/arch/powerpc/kernel/ptrace/ptrace.c b/arch/powerpc/kernel/ptrace/ptrace.c
index 4d2dc22d4a2d..5d7a72b41ae7 100644
--- a/arch/powerpc/kernel/ptrace/ptrace.c
+++ b/arch/powerpc/kernel/ptrace/ptrace.c
@@ -444,4 +444,7 @@ void __init pt_regs_check(void)
* real registers.
*/
BUILD_BUG_ON(PT_DSCR < sizeof(struct user_pt_regs) / sizeof(unsigned long));
+
+ // ptrace_get/put_fpr() rely on PPC32 and VSX being incompatible
+ BUILD_BUG_ON(IS_ENABLED(CONFIG_PPC32) && IS_ENABLED(CONFIG_VSX));
}
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 9bb43aa53d43..a6fce3106e02 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -993,8 +993,8 @@ int rtas_call_reentrant(int token, int nargs, int nret, int *outputs, ...)
*
* Return: A pointer to the specified errorlog or NULL if not found.
*/
-struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log,
- uint16_t section_id)
+noinstr struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log,
+ uint16_t section_id)
{
struct rtas_ext_event_log_v6 *ext_log =
(struct rtas_ext_event_log_v6 *)log->buffer;
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 0e8fc1cd1c55..5761f08dae95 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -60,7 +60,7 @@
#include <asm/udbg.h>
#include <asm/kexec.h>
#include <asm/code-patching.h>
-#include <asm/livepatch.h>
+#include <asm/ftrace.h>
#include <asm/opal.h>
#include <asm/cputhreads.h>
#include <asm/hw_irq.h>
diff --git a/arch/powerpc/kexec/crash.c b/arch/powerpc/kexec/crash.c
index d85fa9fc6f3c..80f54723cf6d 100644
--- a/arch/powerpc/kexec/crash.c
+++ b/arch/powerpc/kexec/crash.c
@@ -224,7 +224,7 @@ void crash_kexec_secondary(struct pt_regs *regs)
/* wait for all the CPUs to hit real mode but timeout if they don't come in */
#if defined(CONFIG_SMP) && defined(CONFIG_PPC64)
-static void __maybe_unused crash_kexec_wait_realmode(int cpu)
+noinstr static void __maybe_unused crash_kexec_wait_realmode(int cpu)
{
unsigned int msecs;
int i;
diff --git a/arch/powerpc/mm/nohash/kaslr_booke.c b/arch/powerpc/mm/nohash/kaslr_booke.c
index 1f3f9fedf1bc..0d04f9d5da8d 100644
--- a/arch/powerpc/mm/nohash/kaslr_booke.c
+++ b/arch/powerpc/mm/nohash/kaslr_booke.c
@@ -19,7 +19,6 @@
#include <asm/cacheflush.h>
#include <asm/kdump.h>
#include <mm/mmu_decl.h>
-#include <generated/compile.h>
#include <generated/utsrelease.h>
struct regions {
@@ -37,10 +36,6 @@ struct regions {
int reserved_mem_size_cells;
};
-/* Simplified build-specific string for starting entropy. */
-static const char build_str[] = UTS_RELEASE " (" LINUX_COMPILE_BY "@"
- LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") " UTS_VERSION;
-
struct regions __initdata regions;
static __init void kaslr_get_cmdline(void *fdt)
@@ -71,7 +66,8 @@ static unsigned long __init get_boot_seed(void *fdt)
{
unsigned long hash = 0;
- hash = rotate_xor(hash, build_str, sizeof(build_str));
+ /* build-specific string for starting entropy. */
+ hash = rotate_xor(hash, linux_banner, strlen(linux_banner));
hash = rotate_xor(hash, fdt, fdt_totalsize(fdt));
return hash;
diff --git a/arch/powerpc/platforms/powernv/Makefile b/arch/powerpc/platforms/powernv/Makefile
index 6488b3842199..19f0fc5c6f1b 100644
--- a/arch/powerpc/platforms/powernv/Makefile
+++ b/arch/powerpc/platforms/powernv/Makefile
@@ -4,6 +4,7 @@
# in particular, idle code runs a bunch of things in real mode
KASAN_SANITIZE_idle.o := n
KASAN_SANITIZE_pci-ioda.o := n
+KASAN_SANITIZE_pci-ioda-tce.o := n
# pnv_machine_check_early
KASAN_SANITIZE_setup.o := n
diff --git a/arch/powerpc/platforms/pseries/papr_scm.c b/arch/powerpc/platforms/pseries/papr_scm.c
index 181b855b3050..82cae08976bc 100644
--- a/arch/powerpc/platforms/pseries/papr_scm.c
+++ b/arch/powerpc/platforms/pseries/papr_scm.c
@@ -465,6 +465,9 @@ static int papr_scm_pmu_check_events(struct papr_scm_priv *p, struct nvdimm_pmu
u32 available_events;
int index, rc = 0;
+ if (!p->stat_buffer_len)
+ return -ENOENT;
+
available_events = (p->stat_buffer_len - sizeof(struct papr_scm_perf_stats))
/ sizeof(struct papr_scm_perf_stat);
if (available_events == 0)
generated by cgit (git 2.34.1) at 2024-06-07 19:32:49 +0000