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

Pull arm64 updates from Will Deacon:
 "Highlights include a major rework of our kPTI page-table rewriting
  code (which makes it both more maintainable and considerably faster in
  the cases where it is required) as well as significant changes to our
  early boot code to reduce the need for data cache maintenance and
  greatly simplify the KASLR relocation dance.

  Summary:

   - Remove unused generic cpuidle support (replaced by PSCI version)

   - Fix documentation describing the kernel virtual address space

   - Handling of some new CPU errata in Arm implementations

   - Rework of our exception table code in preparation for handling
     machine checks (i.e. RAS errors) more gracefully

   - Switch over to the generic implementation of ioremap()

   - Fix lockdep tracking in NMI context

   - Instrument our memory barrier macros for KCSAN

   - Rework of the kPTI G->nG page-table repainting so that the MMU
     remains enabled and the boot time is no longer slowed to a crawl
     for systems which require the late remapping

   - Enable support for direct swapping of 2MiB transparent huge-pages
     on systems without MTE

   - Fix handling of MTE tags with allocating new pages with HW KASAN

   - Expose the SMIDR register to userspace via sysfs

   - Continued rework of the stack unwinder, particularly improving the
     behaviour under KASAN

   - More repainting of our system register definitions to match the
     architectural terminology

   - Improvements to the layout of the vDSO objects

   - Support for allocating additional bits of HWCAP2 and exposing
     FEAT_EBF16 to userspace on CPUs that support it

   - Considerable rework and optimisation of our early boot code to
     reduce the need for cache maintenance and avoid jumping in and out
     of the kernel when handling relocation under KASLR

   - Support for disabling SVE and SME support on the kernel
     command-line

   - Support for the Hisilicon HNS3 PMU

   - Miscellanous cleanups, trivial updates and minor fixes"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (136 commits)
  arm64: Delay initialisation of cpuinfo_arm64::reg_{zcr,smcr}
  arm64: fix KASAN_INLINE
  arm64/hwcap: Support FEAT_EBF16
  arm64/cpufeature: Store elf_hwcaps as a bitmap rather than unsigned long
  arm64/hwcap: Document allocation of upper bits of AT_HWCAP
  arm64: enable THP_SWAP for arm64
  arm64/mm: use GENMASK_ULL for TTBR_BADDR_MASK_52
  arm64: errata: Remove AES hwcap for COMPAT tasks
  arm64: numa: Don't check node against MAX_NUMNODES
  drivers/perf: arm_spe: Fix consistency of SYS_PMSCR_EL1.CX
  perf: RISC-V: Add of_node_put() when breaking out of for_each_of_cpu_node()
  docs: perf: Include hns3-pmu.rst in toctree to fix 'htmldocs' WARNING
  arm64: kasan: Revert "arm64: mte: reset the page tag in page->flags"
  mm: kasan: Skip page unpoisoning only if __GFP_SKIP_KASAN_UNPOISON
  mm: kasan: Skip unpoisoning of user pages
  mm: kasan: Ensure the tags are visible before the tag in page->flags
  drivers/perf: hisi: add driver for HNS3 PMU
  drivers/perf: hisi: Add description for HNS3 PMU driver
  drivers/perf: riscv_pmu_sbi: perf format
  perf/arm-cci: Use the bitmap API to allocate bitmaps
  ...

1 files changed, 264 insertions, 0 deletions

diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg
index ff5e552f7420..9ae483ec1e56 100644
--- a/arch/arm64/tools/sysreg
+++ b/arch/arm64/tools/sysreg
@@ -46,6 +46,89 @@
 # feature that introduces them (eg, FEAT_LS64_ACCDATA introduces enumeration
 # item ACCDATA) though it may be more taseful to do something else.
 
+Sysreg	ID_AA64ZFR0_EL1	3	0	0	4	4
+Res0	63:60
+Enum	59:56	F64MM
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+Enum	55:52	F32MM
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+Res0	51:48
+Enum	47:44	I8MM
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+Enum	43:40	SM4
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+Res0	39:36
+Enum	35:32	SHA3
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+Res0	31:24
+Enum	23:20	BF16
+	0b0000	NI
+	0b0001	IMP
+	0b0010	EBF16
+EndEnum
+Enum	19:16	BitPerm
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+Res0	15:8
+Enum	7:4	AES
+	0b0000	NI
+	0b0001	IMP
+	0b0010	PMULL128
+EndEnum
+Enum	3:0	SVEver
+	0b0000	IMP
+	0b0001	SVE2
+EndEnum
+EndSysreg
+
+Sysreg	ID_AA64SMFR0_EL1	3	0	0	4	5
+Enum	63	FA64
+	0b0	NI
+	0b1	IMP
+EndEnum
+Res0	62:60
+Field	59:56	SMEver
+Enum	55:52	I16I64
+	0b0000	NI
+	0b1111	IMP
+EndEnum
+Res0	51:49
+Enum	48	F64F64
+	0b0	NI
+	0b1	IMP
+EndEnum
+Res0	47:40
+Enum	39:36	I8I32
+	0b0000	NI
+	0b1111	IMP
+EndEnum
+Enum	35	F16F32
+	0b0	NI
+	0b1	IMP
+EndEnum
+Enum	34	B16F32
+	0b0	NI
+	0b1	IMP
+EndEnum
+Res0	33
+Enum	32	F32F32
+	0b0	NI
+	0b1	IMP
+EndEnum
+Res0	31:0
+EndSysreg
+
 Sysreg	ID_AA64ISAR0_EL1	3	0	0	6	0
 Enum	63:60	RNDR
 	0b0000	NI
@@ -114,6 +197,122 @@ EndEnum
 Res0	3:0
 EndSysreg
 
+Sysreg	ID_AA64ISAR1_EL1	3	0	0	6	1
+Enum	63:60	LS64
+	0b0000	NI
+	0b0001	LS64
+	0b0010	LS64_V
+	0b0011	LS64_ACCDATA
+EndEnum
+Enum	59:56	XS
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+Enum	55:52	I8MM
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+Enum	51:48	DGH
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+Enum	47:44	BF16
+	0b0000	NI
+	0b0001	IMP
+	0b0010	EBF16
+EndEnum
+Enum	43:40	SPECRES
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+Enum	39:36	SB
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+Enum	35:32	FRINTTS
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+Enum	31:28	GPI
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+Enum	27:24	GPA
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+Enum	23:20	LRCPC
+	0b0000	NI
+	0b0001	IMP
+	0b0010	LRCPC2
+EndEnum
+Enum	19:16	FCMA
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+Enum	15:12	JSCVT
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+Enum	11:8	API
+	0b0000	NI
+	0b0001	PAuth
+	0b0010	EPAC
+	0b0011	PAuth2
+	0b0100	FPAC
+	0b0101	FPACCOMBINE
+EndEnum
+Enum	7:4	APA
+	0b0000	NI
+	0b0001	PAuth
+	0b0010	EPAC
+	0b0011	PAuth2
+	0b0100	FPAC
+	0b0101	FPACCOMBINE
+EndEnum
+Enum	3:0	DPB
+	0b0000	NI
+	0b0001	IMP
+	0b0010	DPB2
+EndEnum
+EndSysreg
+
+Sysreg	ID_AA64ISAR2_EL1	3	0	0	6	2
+Res0	63:28
+Enum	27:24	PAC_frac
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+Enum	23:20	BC
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+Enum	19:16	MOPS
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+Enum	15:12	APA3
+	0b0000	NI
+	0b0001	PAuth
+	0b0010	EPAC
+	0b0011	PAuth2
+	0b0100	FPAC
+	0b0101	FPACCOMBINE
+EndEnum
+Enum	11:8	GPA3
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+Enum	7:4	RPRES
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+Enum	3:0	WFxT
+	0b0000	NI
+	0b0010	IMP
+EndEnum
+EndSysreg
+
 Sysreg	SCTLR_EL1	3	0	1	0	0
 Field	63	TIDCP
 Field	62	SPINMASK
@@ -257,6 +456,11 @@ Field	5:3	Ctype2
 Field	2:0	Ctype1
 EndSysreg
 
+Sysreg	GMID_EL1	3	1	0	0	4
+Res0	63:4
+Field	3:0	BS
+EndSysreg
+
 Sysreg	SMIDR_EL1	3	1	0	0	6
 Res0	63:32
 Field	31:24	IMPLEMENTER
@@ -273,6 +477,33 @@ Field	3:1	Level
 Field	0	InD
 EndSysreg
 
+Sysreg	CTR_EL0	3	3	0	0	1
+Res0	63:38
+Field	37:32	TminLine
+Res1	31
+Res0	30
+Field	29	DIC
+Field	28	IDC
+Field	27:24	CWG
+Field	23:20	ERG
+Field	19:16	DminLine
+Enum	15:14	L1Ip
+	0b00	VPIPT
+	# This is named as AIVIVT in the ARM but documented as reserved
+	0b01	RESERVED
+	0b10	VIPT
+	0b11	PIPT
+EndEnum
+Res0	13:4
+Field	3:0	IminLine
+EndSysreg
+
+Sysreg	DCZID_EL0	3	3	0	0	7
+Res0	63:5
+Field	4	DZP
+Field	3:0	BS
+EndSysreg
+
 Sysreg	SVCR	3	3	4	2	2
 Res0	63:2
 Field	1	ZA
@@ -367,3 +598,36 @@ EndSysreg
 Sysreg	TTBR1_EL1	3	0	2	0	1
 Fields	TTBRx_EL1
 EndSysreg
+
+Sysreg	LORSA_EL1	3	0	10	4	0
+Res0	63:52
+Field	51:16	SA
+Res0	15:1
+Field	0	Valid
+EndSysreg
+
+Sysreg	LOREA_EL1	3	0	10	4	1
+Res0	63:52
+Field	51:48	EA_51_48
+Field	47:16	EA_47_16
+Res0	15:0
+EndSysreg
+
+Sysreg	LORN_EL1	3	0	10	4	2
+Res0	63:8
+Field	7:0	Num
+EndSysreg
+
+Sysreg	LORC_EL1	3	0	10	4	3
+Res0	63:10
+Field	9:2	DS
+Res0	1
+Field	0	EN
+EndSysreg
+
+Sysreg	LORID_EL1	3	0	10	4	7
+Res0	63:24
+Field	23:16	LD
+Res0	15:8
+Field	7:0	LR
+EndSysreg