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authorLinus Torvalds <torvalds@linux-foundation.org>2021-11-02 19:24:14 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2021-11-02 19:24:14 +0100
commitd7e0a795bf37a13554c80cfc5ba97abedf53f391 (patch)
tree26f107fbe530b1bd0912a748b808cbe476bfbf49 /drivers/clocksource
parentMerge tag 'hyperv-next-signed-20211102' of git://git.kernel.org/pub/scm/linux... (diff)
parentMerge tag 'kvm-riscv-5.16-2' of https://github.com/kvm-riscv/linux into HEAD (diff)
downloadlinux-d7e0a795bf37a13554c80cfc5ba97abedf53f391.tar.xz
linux-d7e0a795bf37a13554c80cfc5ba97abedf53f391.zip
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Paolo Bonzini: "ARM: - More progress on the protected VM front, now with the full fixed feature set as well as the limitation of some hypercalls after initialisation. - Cleanup of the RAZ/WI sysreg handling, which was pointlessly complicated - Fixes for the vgic placement in the IPA space, together with a bunch of selftests - More memcg accounting of the memory allocated on behalf of a guest - Timer and vgic selftests - Workarounds for the Apple M1 broken vgic implementation - KConfig cleanups - New kvmarm.mode=none option, for those who really dislike us RISC-V: - New KVM port. x86: - New API to control TSC offset from userspace - TSC scaling for nested hypervisors on SVM - Switch masterclock protection from raw_spin_lock to seqcount - Clean up function prototypes in the page fault code and avoid repeated memslot lookups - Convey the exit reason to userspace on emulation failure - Configure time between NX page recovery iterations - Expose Predictive Store Forwarding Disable CPUID leaf - Allocate page tracking data structures lazily (if the i915 KVM-GT functionality is not compiled in) - Cleanups, fixes and optimizations for the shadow MMU code s390: - SIGP Fixes - initial preparations for lazy destroy of secure VMs - storage key improvements/fixes - Log the guest CPNC Starting from this release, KVM-PPC patches will come from Michael Ellerman's PPC tree" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (227 commits) RISC-V: KVM: fix boolreturn.cocci warnings RISC-V: KVM: remove unneeded semicolon RISC-V: KVM: Fix GPA passed to __kvm_riscv_hfence_gvma_xyz() functions RISC-V: KVM: Factor-out FP virtualization into separate sources KVM: s390: add debug statement for diag 318 CPNC data KVM: s390: pv: properly handle page flags for protected guests KVM: s390: Fix handle_sske page fault handling KVM: x86: SGX must obey the KVM_INTERNAL_ERROR_EMULATION protocol KVM: x86: On emulation failure, convey the exit reason, etc. to userspace KVM: x86: Get exit_reason as part of kvm_x86_ops.get_exit_info KVM: x86: Clarify the kvm_run.emulation_failure structure layout KVM: s390: Add a routine for setting userspace CPU state KVM: s390: Simplify SIGP Set Arch handling KVM: s390: pv: avoid stalls when making pages secure KVM: s390: pv: avoid stalls for kvm_s390_pv_init_vm KVM: s390: pv: avoid double free of sida page KVM: s390: pv: add macros for UVC CC values s390/mm: optimize reset_guest_reference_bit() s390/mm: optimize set_guest_storage_key() s390/mm: no need for pte_alloc_map_lock() if we know the pmd is present ...
Diffstat (limited to 'drivers/clocksource')
-rw-r--r--drivers/clocksource/timer-riscv.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/clocksource/timer-riscv.c b/drivers/clocksource/timer-riscv.c
index c51c5ed15aa7..1767f8bf2013 100644
--- a/drivers/clocksource/timer-riscv.c
+++ b/drivers/clocksource/timer-riscv.c
@@ -13,10 +13,12 @@
#include <linux/delay.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
+#include <linux/module.h>
#include <linux/sched_clock.h>
#include <linux/io-64-nonatomic-lo-hi.h>
#include <linux/interrupt.h>
#include <linux/of_irq.h>
+#include <clocksource/timer-riscv.h>
#include <asm/smp.h>
#include <asm/sbi.h>
#include <asm/timex.h>
@@ -79,6 +81,13 @@ static int riscv_timer_dying_cpu(unsigned int cpu)
return 0;
}
+void riscv_cs_get_mult_shift(u32 *mult, u32 *shift)
+{
+ *mult = riscv_clocksource.mult;
+ *shift = riscv_clocksource.shift;
+}
+EXPORT_SYMBOL_GPL(riscv_cs_get_mult_shift);
+
/* called directly from the low-level interrupt handler */
static irqreturn_t riscv_timer_interrupt(int irq, void *dev_id)
{