Merge tag 'riscv-for-linus-5.14-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Palmer Dabbelt:
"We have a handful of new features for 5.14:
- Support for transparent huge pages.
- Support for generic PCI resources mapping.
- Support for the mem= kernel parameter.
- Support for KFENCE.
- A handful of fixes to avoid W+X mappings in the kernel.
- Support for VMAP_STACK based overflow detection.
- An optimized copy_{to,from}_user"
* tag 'riscv-for-linus-5.14-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (37 commits)
riscv: xip: Fix duplicate included asm/pgtable.h
riscv: Fix PTDUMP output now BPF region moved back to module region
riscv: __asm_copy_to-from_user: Optimize unaligned memory access and pipeline stall
riscv: add VMAP_STACK overflow detection
riscv: ptrace: add argn syntax
riscv: mm: fix build errors caused by mk_pmd()
riscv: Introduce structure that group all variables regarding kernel mapping
riscv: Map the kernel with correct permissions the first time
riscv: Introduce set_kernel_memory helper
riscv: Enable KFENCE for riscv64
RISC-V: Use asm-generic for {in,out}{bwlq}
riscv: add ASID-based tlbflushing methods
riscv: pass the mm_struct to __sbi_tlb_flush_range
riscv: Add mem kernel parameter support
riscv: Simplify xip and !xip kernel address conversion macros
riscv: Remove CONFIG_PHYS_RAM_BASE_FIXED
riscv: Only initialize swiotlb when necessary
riscv: fix typo in init.c
riscv: Cleanup unused functions
riscv: mm: Use better bitmap_zalloc()
...
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index c711ccd..8fcceb8 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -65,11 +65,14 @@
select HAVE_ARCH_JUMP_LABEL_RELATIVE if !XIP_KERNEL
select HAVE_ARCH_KASAN if MMU && 64BIT
select HAVE_ARCH_KASAN_VMALLOC if MMU && 64BIT
+ select HAVE_ARCH_KFENCE if MMU && 64BIT
select HAVE_ARCH_KGDB if !XIP_KERNEL
select HAVE_ARCH_KGDB_QXFER_PKT
select HAVE_ARCH_MMAP_RND_BITS if MMU
select HAVE_ARCH_SECCOMP_FILTER
select HAVE_ARCH_TRACEHOOK
+ select HAVE_ARCH_TRANSPARENT_HUGEPAGE if 64BIT && MMU
+ select HAVE_ARCH_VMAP_STACK if MMU && 64BIT
select HAVE_ASM_MODVERSIONS
select HAVE_CONTEXT_TRACKING
select HAVE_DEBUG_KMEMLEAK
@@ -83,11 +86,14 @@
select HAVE_KPROBES if !XIP_KERNEL
select HAVE_KPROBES_ON_FTRACE if !XIP_KERNEL
select HAVE_KRETPROBES if !XIP_KERNEL
+ select HAVE_MOVE_PMD
+ select HAVE_MOVE_PUD
select HAVE_PCI
select HAVE_PERF_EVENTS
select HAVE_PERF_REGS
select HAVE_PERF_USER_STACK_DUMP
select HAVE_REGS_AND_STACK_ACCESS_API
+ select HAVE_FUNCTION_ARG_ACCESS_API
select HAVE_STACKPROTECTOR
select HAVE_SYSCALL_TRACEPOINTS
select IRQ_DOMAIN
@@ -488,13 +494,8 @@
def_bool y
depends on STACKPROTECTOR && CC_HAVE_STACKPROTECTOR_TLS
-config PHYS_RAM_BASE_FIXED
- bool "Explicitly specified physical RAM address"
- default n
-
config PHYS_RAM_BASE
hex "Platform Physical RAM address"
- depends on PHYS_RAM_BASE_FIXED
default "0x80000000"
help
This is the physical address of RAM in the system. It has to be
@@ -507,7 +508,6 @@
# This prevents XIP from being enabled by all{yes,mod}config, which
# fail to build since XIP doesn't support large kernels.
depends on !COMPILE_TEST
- select PHYS_RAM_BASE_FIXED
help
Execute-In-Place allows the kernel to run from non-volatile storage
directly addressable by the CPU, such as NOR flash. This saves RAM
