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authorLinus Torvalds <torvalds@linux-foundation.org>2025-09-29 18:48:39 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2025-09-29 18:48:39 -0700
commitfeafee284579d29537a5a56ba8f23894f0463f3d (patch)
tree6677a27bc63d72af245430186b40da0c3be28482 /arch/arm64/tools
parentfe68bb2861808ed5c48d399bd7e670ab76829d55 (diff)
parentea0b39168d3a2313eabd145fb3440c946ccff4d1 (diff)
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon: "There's good stuff across the board, including some nice mm improvements for CPUs with the 'noabort' BBML2 feature and a clever patch to allow ptdump to play nicely with block mappings in the vmalloc area. Confidential computing: - Add support for accepting secrets from firmware (e.g. ACPI CCEL) and mapping them with appropriate attributes. CPU features: - Advertise atomic floating-point instructions to userspace - Extend Spectre workarounds to cover additional Arm CPU variants - Extend list of CPUs that support break-before-make level 2 and guarantee not to generate TLB conflict aborts for changes of mapping granularity (BBML2_NOABORT) - Add GCS support to our uprobes implementation. Documentation: - Remove bogus SME documentation concerning register state when entering/exiting streaming mode. Entry code: - Switch over to the generic IRQ entry code (GENERIC_IRQ_ENTRY) - Micro-optimise syscall entry path with a compiler branch hint. Memory management: - Enable huge mappings in vmalloc space even when kernel page-table dumping is enabled - Tidy up the types used in our early MMU setup code - Rework rodata= for closer parity with the behaviour on x86 - For CPUs implementing BBML2_NOABORT, utilise block mappings in the linear map even when rodata= applies to virtual aliases - Don't re-allocate the virtual region between '_text' and '_stext', as doing so confused tools parsing /proc/vmcore. Miscellaneous: - Clean-up Kconfig menuconfig text for architecture features - Avoid redundant bitmap_empty() during determination of supported SME vector lengths - Re-enable warnings when building the 32-bit vDSO object - Avoid breaking our eggs at the wrong end. Perf and PMUs: - Support for v3 of the Hisilicon L3C PMU - Support for Hisilicon's MN and NoC PMUs - Support for Fujitsu's Uncore PMU - Support for SPE's extended event filtering feature - Preparatory work to enable data source filtering in SPE - Support for multiple lanes in the DWC PCIe PMU - Support for i.MX94 in the IMX DDR PMU driver - MAINTAINERS update (Thank you, Yicong) - Minor driver fixes (PERF_IDX2OFF() overflow, CMN register offsets). Selftests: - Add basic LSFE check to the existing hwcaps test - Support nolibc in GCS tests - Extend SVE ptrace test to pass unsupported regsets and invalid vector lengths - Minor cleanups (typos, cosmetic changes). System registers: - Fix ID_PFR1_EL1 definition - Fix incorrect signedness of some fields in ID_AA64MMFR4_EL1 - Sync TCR_EL1 definition with the latest Arm ARM (L.b) - Be stricter about the input fed into our AWK sysreg generator script - Typo fixes and removal of redundant definitions. ACPI, EFI and PSCI: - Decouple Arm's "Software Delegated Exception Interface" (SDEI) support from the ACPI GHES code so that it can be used by platforms booted with device-tree - Remove unnecessary per-CPU tracking of the FPSIMD state across EFI runtime calls - Fix a node refcount imbalance in the PSCI device-tree code. CPU Features: - Ensure register sanitisation is applied to fields in ID_AA64MMFR4 - Expose AIDR_EL1 to userspace via sysfs, primarily so that KVM guests can reliably query the underlying CPU types from the VMM - Re-enabling of SME support (CONFIG_ARM64_SME) as a result of fixes to our context-switching, signal handling and ptrace code" * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (93 commits) arm64: cpufeature: Remove duplicate asm/mmu.h header arm64: Kconfig: Make CPU_BIG_ENDIAN depend on BROKEN perf/dwc_pcie: Fix use of uninitialized variable arm/syscalls: mark syscall invocation as likely in invoke_syscall Documentation: hisi-pmu: Add introduction to HiSilicon V3 PMU Documentation: hisi-pmu: Fix of minor format error drivers/perf: hisi: Add support for L3C PMU v3 drivers/perf: hisi: Refactor the event configuration of L3C PMU drivers/perf: hisi: Extend the field of tt_core drivers/perf: hisi: Extract the event filter check of L3C PMU drivers/perf: hisi: Simplify the probe process of each L3C PMU version drivers/perf: hisi: Export hisi_uncore_pmu_isr() drivers/perf: hisi: Relax the event ID check in the framework perf: Fujitsu: Add the Uncore PMU driver arm64: map [_text, _stext) virtual address range non-executable+read-only arm64/sysreg: Update TCR_EL1 register arm64: Enable vmalloc-huge with ptdump arm64: cpufeature: add Neoverse-V3AE to BBML2 allow list arm64: errata: Apply workarounds for Neoverse-V3AE arm64: cputype: Add Neoverse-V3AE definitions ...
Diffstat (limited to 'arch/arm64/tools')
-rwxr-xr-xarch/arm64/tools/gen-sysreg.awk20
-rw-r--r--arch/arm64/tools/sysreg83
2 files changed, 80 insertions, 23 deletions
diff --git a/arch/arm64/tools/gen-sysreg.awk b/arch/arm64/tools/gen-sysreg.awk
index f2a1732cb1f6..bbbb812603e8 100755
--- a/arch/arm64/tools/gen-sysreg.awk
+++ b/arch/arm64/tools/gen-sysreg.awk
@@ -122,6 +122,10 @@ $1 == "SysregFields" && block_current() == "Root" {
res1 = "UL(0)"
unkn = "UL(0)"
+ if (reg in defined_fields)
+ fatal("Duplicate SysregFields definition for " reg)
+ defined_fields[reg] = 1
+
next_bit = 63
next
@@ -162,6 +166,10 @@ $1 == "Sysreg" && block_current() == "Root" {
res1 = "UL(0)"
unkn = "UL(0)"
+ if (reg in defined_regs)
+ fatal("Duplicate Sysreg definition for " reg)
+ defined_regs[reg] = 1
+
define("REG_" reg, "S" op0 "_" op1 "_C" crn "_C" crm "_" op2)
define("SYS_" reg, "sys_reg(" op0 ", " op1 ", " crn ", " crm ", " op2 ")")
@@ -284,6 +292,8 @@ $1 == "SignedEnum" && (block_current() == "Sysreg" || block_current() == "Sysreg
define_field(reg, field, msb, lsb)
define_field_sign(reg, field, "true")
+ delete seen_enum_vals
+
next
}
@@ -297,6 +307,8 @@ $1 == "UnsignedEnum" && (block_current() == "Sysreg" || block_current() == "Sysr
define_field(reg, field, msb, lsb)
define_field_sign(reg, field, "false")
+ delete seen_enum_vals
+
next
}
@@ -309,6 +321,8 @@ $1 == "Enum" && (block_current() == "Sysreg" || block_current() == "SysregFields
define_field(reg, field, msb, lsb)
+ delete seen_enum_vals
+
next
}
@@ -320,6 +334,8 @@ $1 == "EndEnum" && block_current() == "Enum" {
lsb = null
print ""
+ delete seen_enum_vals
+
block_pop()
next
}
@@ -329,6 +345,10 @@ $1 == "EndEnum" && block_current() == "Enum" {
val = $1
name = $2
+ if (val in seen_enum_vals)
+ fatal("Duplicate Enum value " val " for " name)
+ seen_enum_vals[val] = 1
+
define(reg "_" field "_" name, "UL(" val ")")
next
}
diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg
index 696ab1f32a67..1c6cdf9d54bb 100644
--- a/arch/arm64/tools/sysreg
+++ b/arch/arm64/tools/sysreg
@@ -31,7 +31,7 @@
# Mapping <name_EL1>
# EndSysreg
-# Where multiple system regsiters are not VHE aliases but share a
+# Where multiple system registers are not VHE aliases but share a
# common layout, a SysregFields block can be used to describe the
# shared layout:
@@ -54,7 +54,7 @@
#
# In general it is recommended that new enumeration items be named for the
# feature that introduces them (eg, FEAT_LS64_ACCDATA introduces enumeration
-# item ACCDATA) though it may be more taseful to do something else.
+# item ACCDATA) though it may be more tasteful to do something else.
Sysreg OSDTRRX_EL1 2 0 0 0 2
Res0 63:32
@@ -474,7 +474,7 @@ EndEnum
Enum 7:4 Security
0b0000 NI
0b0001 EL3
- 0b0001 NSACR_RFR
+ 0b0010 NSACR_RFR
EndEnum
UnsignedEnum 3:0 ProgMod
0b0000 NI
@@ -1693,7 +1693,7 @@ UnsignedEnum 43:40 TraceFilt
0b0000 NI
0b0001 IMP
EndEnum
-UnsignedEnum 39:36 DoubleLock
+SignedEnum 39:36 DoubleLock
0b0000 IMP
0b1111 NI
EndEnum
@@ -2409,7 +2409,7 @@ UnsignedEnum 11:8 ASID2
0b0000 NI
0b0001 IMP
EndEnum
-SignedEnum 7:4 EIESB
+UnsignedEnum 7:4 EIESB
0b0000 NI
0b0001 ToEL3
0b0010 ToELx
@@ -2528,10 +2528,6 @@ Field 17:16 ZEN
Res0 15:0
EndSysreg
-Sysreg CPACR_EL12 3 5 1 0 2
-Mapping CPACR_EL1
-EndSysreg
-
Sysreg CPACRALIAS_EL1 3 0 1 4 4
Mapping CPACR_EL1
EndSysreg
@@ -2576,10 +2572,6 @@ Sysreg PFAR_EL12 3 5 6 0 5
Mapping PFAR_EL1
EndSysreg
-Sysreg RCWSMASK_EL1 3 0 13 0 3
-Field 63:0 RCWSMASK
-EndSysreg
-
Sysreg SCTLR2_EL1 3 0 1 0 3
Res0 63:13
Field 12 CPTM0
@@ -2994,11 +2986,20 @@ Field 0 RND
EndSysreg
Sysreg PMSFCR_EL1 3 0 9 9 4
-Res0 63:19
+Res0 63:53
+Field 52 SIMDm
+Field 51 FPm
+Field 50 STm
+Field 49 LDm
+Field 48 Bm
+Res0 47:21
+Field 20 SIMD
+Field 19 FP
Field 18 ST
Field 17 LD
Field 16 B
-Res0 15:4
+Res0 15:5
+Field 4 FDS
Field 3 FnE
Field 2 FL
Field 1 FT
@@ -4756,17 +4757,53 @@ Field 37 TBI0
Field 36 AS
Res0 35
Field 34:32 IPS
-Field 31:30 TG1
-Field 29:28 SH1
-Field 27:26 ORGN1
-Field 25:24 IRGN1
+Enum 31:30 TG1
+ 0b01 16K
+ 0b10 4K
+ 0b11 64K
+EndEnum
+Enum 29:28 SH1
+ 0b00 NONE
+ 0b10 OUTER
+ 0b11 INNER
+EndEnum
+Enum 27:26 ORGN1
+ 0b00 NC
+ 0b01 WBWA
+ 0b10 WT
+ 0b11 WBnWA
+EndEnum
+Enum 25:24 IRGN1
+ 0b00 NC
+ 0b01 WBWA
+ 0b10 WT
+ 0b11 WBnWA
+EndEnum
Field 23 EPD1
Field 22 A1
Field 21:16 T1SZ
-Field 15:14 TG0
-Field 13:12 SH0
-Field 11:10 ORGN0
-Field 9:8 IRGN0
+Enum 15:14 TG0
+ 0b00 4K
+ 0b01 64K
+ 0b10 16K
+EndEnum
+Enum 13:12 SH0
+ 0b00 NONE
+ 0b10 OUTER
+ 0b11 INNER
+EndEnum
+Enum 11:10 ORGN0
+ 0b00 NC
+ 0b01 WBWA
+ 0b10 WT
+ 0b11 WBnWA
+EndEnum
+Enum 9:8 IRGN0
+ 0b00 NC
+ 0b01 WBWA
+ 0b10 WT
+ 0b11 WBnWA
+EndEnum
Field 7 EPD0
Res0 6
Field 5:0 T0SZ