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-rw-r--r--arch/riscv/Kconfig68
1 files changed, 59 insertions, 9 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 9f38a5ecbee3..0f3cd7c3a436 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -13,9 +13,13 @@ config 32BIT
config RISCV
def_bool y
select ACPI_GENERIC_GSI if ACPI
+ select ACPI_PPTT if ACPI
select ACPI_REDUCED_HARDWARE_ONLY if ACPI
+ select ACPI_SPCR_TABLE if ACPI
select ARCH_DMA_DEFAULT_COHERENT
select ARCH_ENABLE_HUGEPAGE_MIGRATION if HUGETLB_PAGE && MIGRATION
+ select ARCH_ENABLE_MEMORY_HOTPLUG if SPARSEMEM_VMEMMAP
+ select ARCH_ENABLE_MEMORY_HOTREMOVE if MEMORY_HOTPLUG
select ARCH_ENABLE_SPLIT_PMD_PTLOCK if PGTABLE_LEVELS > 2
select ARCH_ENABLE_THP_MIGRATION if TRANSPARENT_HUGEPAGE
select ARCH_HAS_BINFMT_FLAT
@@ -35,6 +39,7 @@ config RISCV
select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE
select ARCH_HAS_PMEM_API
select ARCH_HAS_PREPARE_SYNC_CORE_CMD
+ select ARCH_HAS_PTE_DEVMAP if 64BIT && MMU
select ARCH_HAS_PTE_SPECIAL
select ARCH_HAS_SET_DIRECT_MAP if MMU
select ARCH_HAS_SET_MEMORY if MMU
@@ -46,6 +51,7 @@ config RISCV
select ARCH_HAS_UBSAN
select ARCH_HAS_VDSO_DATA
select ARCH_KEEP_MEMBLOCK if ACPI
+ select ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE if 64BIT && MMU
select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX
select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT
select ARCH_STACKWALK
@@ -69,6 +75,7 @@ config RISCV
select ARCH_WANT_GENERAL_HUGETLB if !RISCV_ISA_SVNAPOT
select ARCH_WANT_HUGE_PMD_SHARE if 64BIT
select ARCH_WANT_LD_ORPHAN_WARN if !XIP_KERNEL
+ select ARCH_WANT_OPTIMIZE_DAX_VMEMMAP
select ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP
select ARCH_WANTS_NO_INSTR
select ARCH_WANTS_THP_SWAP if HAVE_ARCH_TRANSPARENT_HUGEPAGE
@@ -118,6 +125,7 @@ config RISCV
select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT
select HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET
select HAVE_ARCH_SECCOMP_FILTER
+ select HAVE_ARCH_STACKLEAK
select HAVE_ARCH_THREAD_STRUCT_WHITELIST
select HAVE_ARCH_TRACEHOOK
select HAVE_ARCH_TRANSPARENT_HUGEPAGE if 64BIT && MMU
@@ -149,7 +157,6 @@ config RISCV
select HAVE_KERNEL_UNCOMPRESSED if !XIP_KERNEL && !EFI_ZBOOT
select HAVE_KERNEL_ZSTD if !XIP_KERNEL && !EFI_ZBOOT
select HAVE_KPROBES if !XIP_KERNEL
- select HAVE_KPROBES_ON_FTRACE if !XIP_KERNEL
select HAVE_KRETPROBES if !XIP_KERNEL
# https://github.com/ClangBuiltLinux/linux/issues/1881
select HAVE_LD_DEAD_CODE_DATA_ELIMINATION if !LD_IS_LLD
@@ -595,6 +602,19 @@ config RISCV_ISA_V_PREEMPTIVE
preemption. Enabling this config will result in higher memory
consumption due to the allocation of per-task's kernel Vector context.
+config RISCV_ISA_ZAWRS
+ bool "Zawrs extension support for more efficient busy waiting"
+ depends on RISCV_ALTERNATIVE
+ default y
+ help
+ The Zawrs extension defines instructions to be used in polling loops
+ which allow a hart to enter a low-power state or to trap to the
+ hypervisor while waiting on a store to a memory location. Enable the
+ use of these instructions in the kernel when the Zawrs extension is
+ detected at boot.
+
+ If you don't know what to do here, say Y.
+
config TOOLCHAIN_HAS_ZBB
bool
default y
@@ -637,6 +657,29 @@ config RISCV_ISA_ZBB
If you don't know what to do here, say Y.
+config TOOLCHAIN_HAS_ZBC
+ bool
+ default y
+ depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zbc)
+ depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zbc)
+ depends on LLD_VERSION >= 150000 || LD_VERSION >= 23900
+ depends on AS_HAS_OPTION_ARCH
+
+config RISCV_ISA_ZBC
+ bool "Zbc extension support for carry-less multiplication instructions"
+ depends on TOOLCHAIN_HAS_ZBC
+ depends on MMU
+ depends on RISCV_ALTERNATIVE
+ default y
+ help
+ Adds support to dynamically detect the presence of the Zbc
+ extension (carry-less multiplication) and enable its usage.
+
+ The Zbc extension could accelerate CRC (cyclic redundancy check)
+ calculations.
+
+ If you don't know what to do here, say Y.
+
config RISCV_ISA_ZICBOM
bool "Zicbom extension support for non-coherent DMA operation"
depends on MMU
@@ -666,13 +709,6 @@ config RISCV_ISA_ZICBOZ
If you don't know what to do here, say Y.
-config TOOLCHAIN_HAS_ZIHINTPAUSE
- bool
- default y
- depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zihintpause)
- depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zihintpause)
- depends on LLD_VERSION >= 150000 || LD_VERSION >= 23600
-
config TOOLCHAIN_NEEDS_EXPLICIT_ZICSR_ZIFENCEI
def_bool y
# https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=aed44286efa8ae8717a77d94b51ac3614e2ca6dc
@@ -786,6 +822,8 @@ config RISCV_EFFICIENT_UNALIGNED_ACCESS
endchoice
+source "arch/riscv/Kconfig.vendor"
+
endmenu # "Platform type"
menu "Kernel features"
@@ -926,7 +964,8 @@ config CMDLINE
line here and choose how the kernel should use it later on.
choice
- prompt "Built-in command line usage" if CMDLINE != ""
+ prompt "Built-in command line usage"
+ depends on CMDLINE != ""
default CMDLINE_FALLBACK
help
Choose how the kernel will handle the provided built-in command
@@ -979,6 +1018,17 @@ config EFI
allow the kernel to be booted as an EFI application. This
is only useful on systems that have UEFI firmware.
+config DMI
+ bool "Enable support for SMBIOS (DMI) tables"
+ depends on EFI
+ default y
+ help
+ This enables SMBIOS/DMI feature for systems.
+
+ This option is only useful on systems that have UEFI firmware.
+ However, even with this option, the resultant kernel should
+ continue to boot on existing non-UEFI platforms.
+
config CC_HAVE_STACKPROTECTOR_TLS
def_bool $(cc-option,-mstack-protector-guard=tls -mstack-protector-guard-reg=tp -mstack-protector-guard-offset=0)