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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-13 11:47:01 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-13 11:47:01 -0800
commitd60a540ac5f2fbab3e6fe592717b445bd7343a91 (patch)
treecdfe23e7c2cb753aba10e5edc7c38972eac25ed0 /arch/s390/kernel/setup.c
parent2101dd64b304b034862f5ca40877c41b7ccb9c5e (diff)
parent364a5607d6988b05b54cc0138cf8229203b9a33e (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Heiko Carstens: "Since Martin is on vacation you get the s390 pull request for the v4.15 merge window this time from me. Besides a lot of cleanups and bug fixes these are the most important changes: - a new regset for runtime instrumentation registers - hardware accelerated AES-GCM support for the aes_s390 module - support for the new CEX6S crypto cards - support for FORTIFY_SOURCE - addition of missing z13 and new z14 instructions to the in-kernel disassembler - generate opcode tables for the in-kernel disassembler out of a simple text file instead of having to manually maintain those tables - fast memset16, memset32 and memset64 implementations - removal of named saved segment support - hardware counter support for z14 - queued spinlocks and queued rwlocks implementations for s390 - use the stack_depth tracking feature for s390 BPF JIT - a new s390_sthyi system call which emulates the sthyi (store hypervisor information) instruction - removal of the old KVM virtio transport - an s390 specific CPU alternatives implementation which is used in the new spinlock code" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (88 commits) MAINTAINERS: add virtio-ccw.h to virtio/s390 section s390/noexec: execute kexec datamover without DAT s390: fix transactional execution control register handling s390/bpf: take advantage of stack_depth tracking s390: simplify transactional execution elf hwcap handling s390/zcrypt: Rework struct ap_qact_ap_info. s390/virtio: remove unused header file kvm_virtio.h s390: avoid undefined behaviour s390/disassembler: generate opcode tables from text file s390/disassembler: remove insn_to_mnemonic() s390/dasd: avoid calling do_gettimeofday() s390: vfio-ccw: Do not attempt to free no-op, test and tic cda. s390: remove named saved segment support s390/archrandom: Reconsider s390 arch random implementation s390/pci: do not require AIS facility s390/qdio: sanitize put_indicator s390/qdio: use atomic_cmpxchg s390/nmi: avoid using long-displacement facility s390: pass endianness info to sparse s390/decompressor: remove informational messages ...
Diffstat (limited to 'arch/s390/kernel/setup.c')
-rw-r--r--arch/s390/kernel/setup.c21
1 files changed, 9 insertions, 12 deletions
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 164a1e16b53e..090053cf279b 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -55,17 +55,18 @@
#include <asm/mmu_context.h>
#include <asm/cpcmd.h>
#include <asm/lowcore.h>
+#include <asm/nmi.h>
#include <asm/irq.h>
#include <asm/page.h>
#include <asm/ptrace.h>
#include <asm/sections.h>
#include <asm/ebcdic.h>
-#include <asm/kvm_virtio.h>
#include <asm/diag.h>
#include <asm/os_info.h>
#include <asm/sclp.h>
#include <asm/sysinfo.h>
#include <asm/numa.h>
+#include <asm/alternative.h>
#include "entry.h"
/*
@@ -339,16 +340,8 @@ static void __init setup_lowcore(void)
lc->stfl_fac_list = S390_lowcore.stfl_fac_list;
memcpy(lc->stfle_fac_list, S390_lowcore.stfle_fac_list,
MAX_FACILITY_BIT/8);
- if (MACHINE_HAS_VX || MACHINE_HAS_GS) {
- unsigned long bits, size;
-
- bits = MACHINE_HAS_GS ? 11 : 10;
- size = 1UL << bits;
- lc->mcesad = (__u64) memblock_virt_alloc(size, size);
- if (MACHINE_HAS_GS)
- lc->mcesad |= bits;
- }
- lc->vdso_per_cpu_data = (unsigned long) &lc->paste[0];
+ nmi_alloc_boot_cpu(lc);
+ vdso_alloc_boot_cpu(lc);
lc->sync_enter_timer = S390_lowcore.sync_enter_timer;
lc->async_enter_timer = S390_lowcore.async_enter_timer;
lc->exit_timer = S390_lowcore.exit_timer;
@@ -380,6 +373,8 @@ static void __init setup_lowcore(void)
#ifdef CONFIG_SMP
lc->spinlock_lockval = arch_spin_lockval(0);
+ lc->spinlock_index = 0;
+ arch_spin_lock_setup(0);
#endif
set_prefix((u32)(unsigned long) lc);
@@ -764,7 +759,7 @@ static int __init setup_hwcaps(void)
/*
* Transactional execution support HWCAP_S390_TE is bit 10.
*/
- if (test_facility(50) && test_facility(73))
+ if (MACHINE_HAS_TE)
elf_hwcap |= HWCAP_S390_TE;
/*
@@ -955,6 +950,8 @@ void __init setup_arch(char **cmdline_p)
conmode_default();
set_preferred_console();
+ apply_alternative_instructions();
+
/* Setup zfcpdump support */
setup_zfcpdump();