Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Catalin Marinas:
 "No major architecture features this time around, just some new HWCAP
  definitions, support for the Ampere SoC PMUs and a few fixes/cleanups.

  The bulk of the changes is reworking of the CPU capability checking
  code (cpus_have_cap() etc).

   - Major refactoring of the CPU capability detection logic resulting
     in the removal of the cpus_have_const_cap() function and migrating
     the code to "alternative" branches where possible

   - Backtrace/kgdb: use IPIs and pseudo-NMI

   - Perf and PMU:

      - Add support for Ampere SoC PMUs

      - Multi-DTC improvements for larger CMN configurations with
        multiple Debug & Trace Controllers

      - Rework the Arm CoreSight PMU driver to allow separate
        registration of vendor backend modules

      - Fixes: add missing MODULE_DEVICE_TABLE to the amlogic perf
        driver; use device_get_match_data() in the xgene driver; fix
        NULL pointer dereference in the hisi driver caused by calling
        cpuhp_state_remove_instance(); use-after-free in the hisi driver

   - HWCAP updates:

      - FEAT_SVE_B16B16 (BFloat16)

      - FEAT_LRCPC3 (release consistency model)

      - FEAT_LSE128 (128-bit atomic instructions)

   - SVE: remove a couple of pseudo registers from the cpufeature code.
     There is logic in place already to detect mismatched SVE features

   - Miscellaneous:

      - Reduce the default swiotlb size (currently 64MB) if no ZONE_DMA
        bouncing is needed. The buffer is still required for small
        kmalloc() buffers

      - Fix module PLT counting with !RANDOMIZE_BASE

      - Restrict CPU_BIG_ENDIAN to LLVM IAS 15.x or newer move
        synchronisation code out of the set_ptes() loop

      - More compact cpufeature displaying enabled cores

      - Kselftest updates for the new CPU features"

 * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (83 commits)
  arm64: Restrict CPU_BIG_ENDIAN to GNU as or LLVM IAS 15.x or newer
  arm64: module: Fix PLT counting when CONFIG_RANDOMIZE_BASE=n
  arm64, irqchip/gic-v3, ACPI: Move MADT GICC enabled check into a helper
  perf: hisi: Fix use-after-free when register pmu fails
  drivers/perf: hisi_pcie: Initialize event->cpu only on success
  drivers/perf: hisi_pcie: Check the type first in pmu::event_init()
  arm64: cpufeature: Change DBM to display enabled cores
  arm64: cpufeature: Display the set of cores with a feature
  perf/arm-cmn: Enable per-DTC counter allocation
  perf/arm-cmn: Rework DTC counters (again)
  perf/arm-cmn: Fix DTC domain detection
  drivers: perf: arm_pmuv3: Drop some unused arguments from armv8_pmu_init()
  drivers: perf: arm_pmuv3: Read PMMIR_EL1 unconditionally
  drivers/perf: hisi: use cpuhp_state_remove_instance_nocalls() for hisi_hns3_pmu uninit process
  clocksource/drivers/arm_arch_timer: limit XGene-1 workaround
  arm64: Remove system_uses_lse_atomics()
  arm64: Mark the 'addr' argument to set_ptes() and __set_pte_at() as unused
  drivers/perf: xgene: Use device_get_match_data()
  perf/amlogic: add missing MODULE_DEVICE_TABLE
  arm64/mm: Hoist synchronization out of set_ptes() loop
  ...

4 files changed, 13 insertions, 7 deletions

diff --git a/arch/arm64/tools/Makefile b/arch/arm64/tools/Makefile
index 07a93ab21a62..fa2251d9762d 100644
--- a/arch/arm64/tools/Makefile
+++ b/arch/arm64/tools/Makefile
@@ -3,7 +3,7 @@
 gen := arch/$(ARCH)/include/generated
 kapi := $(gen)/asm
 
-kapi-hdrs-y := $(kapi)/cpucaps.h $(kapi)/sysreg-defs.h
+kapi-hdrs-y := $(kapi)/cpucap-defs.h $(kapi)/sysreg-defs.h
 
 targets += $(addprefix ../../../, $(kapi-hdrs-y))
 
@@ -17,7 +17,7 @@ quiet_cmd_gen_cpucaps = GEN     $@
 quiet_cmd_gen_sysreg = GEN     $@
       cmd_gen_sysreg = mkdir -p $(dir $@); $(AWK) -f $(real-prereqs) > $@
 
-$(kapi)/cpucaps.h: $(src)/gen-cpucaps.awk $(src)/cpucaps FORCE
+$(kapi)/cpucap-defs.h: $(src)/gen-cpucaps.awk $(src)/cpucaps FORCE
 	$(call if_changed,gen_cpucaps)
 
 $(kapi)/sysreg-defs.h: $(src)/gen-sysreg.awk $(src)/sysreg FORCE
diff --git a/arch/arm64/tools/cpucaps b/arch/arm64/tools/cpucaps
index dea3dc89234b..b98c38288a9d 100644
--- a/arch/arm64/tools/cpucaps
+++ b/arch/arm64/tools/cpucaps
@@ -27,6 +27,7 @@ HAS_ECV_CNTPOFF
 HAS_EPAN
 HAS_EVT
 HAS_FGT
+HAS_FPSIMD
 HAS_GENERIC_AUTH
 HAS_GENERIC_AUTH_ARCH_QARMA3
 HAS_GENERIC_AUTH_ARCH_QARMA5
@@ -39,7 +40,6 @@ HAS_LDAPR
 HAS_LSE_ATOMICS
 HAS_MOPS
 HAS_NESTED_VIRT
-HAS_NO_FPSIMD
 HAS_NO_HW_PREFETCH
 HAS_PAN
 HAS_S1PIE
diff --git a/arch/arm64/tools/gen-cpucaps.awk b/arch/arm64/tools/gen-cpucaps.awk
index 8525980379d7..2f4f61a0af17 100755
--- a/arch/arm64/tools/gen-cpucaps.awk
+++ b/arch/arm64/tools/gen-cpucaps.awk
@@ -15,8 +15,8 @@ function fatal(msg) {
 /^#/ { next }
 
 BEGIN {
-	print "#ifndef __ASM_CPUCAPS_H"
-	print "#define __ASM_CPUCAPS_H"
+	print "#ifndef __ASM_CPUCAP_DEFS_H"
+	print "#define __ASM_CPUCAP_DEFS_H"
 	print ""
 	print "/* Generated file - do not edit */"
 	cap_num = 0
@@ -31,7 +31,7 @@ BEGIN {
 END {
 	printf("#define ARM64_NCAPS\t\t\t\t\t%d\n", cap_num)
 	print ""
-	print "#endif /* __ASM_CPUCAPS_H */"
+	print "#endif /* __ASM_CPUCAP_DEFS_H */"
 }
 
 # Any lines not handled by previous rules are unexpected
diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg
index 76ce150e7347..96cbeeab4eec 100644
--- a/arch/arm64/tools/sysreg
+++ b/arch/arm64/tools/sysreg
@@ -1026,7 +1026,11 @@ UnsignedEnum	35:32	SHA3
 	0b0000	NI
 	0b0001	IMP
 EndEnum
-Res0	31:24
+Res0	31:28
+UnsignedEnum	27:24	B16B16
+	0b0000	NI
+	0b0001	IMP
+EndEnum
 UnsignedEnum	23:20	BF16
 	0b0000	NI
 	0b0001	IMP
@@ -1235,6 +1239,7 @@ EndEnum
 UnsignedEnum	23:20	ATOMIC
 	0b0000	NI
 	0b0010	IMP
+	0b0011	FEAT_LSE128
 EndEnum
 UnsignedEnum	19:16	CRC32
 	0b0000	NI
@@ -1305,6 +1310,7 @@ UnsignedEnum	23:20	LRCPC
 	0b0000	NI
 	0b0001	IMP
 	0b0010	LRCPC2
+	0b0011	LRCPC3
 EndEnum
 UnsignedEnum	19:16	FCMA
 	0b0000	NI