diff options
| author | Palmer Dabbelt <palmer@rivosinc.com> | 2022-12-02 10:04:41 -0800 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2022-12-02 10:04:41 -0800 |
| commit | 5f66e18755963537d6cd125bde4ec559f2991a75 (patch) | |
| tree | 47ccc840eb22131236c840295a313dd60a0bb53a /arch/riscv/Kconfig | |
| parent | 41555cc9e2e9778ddc7c0293a4a2e4995e332643 (diff) | |
| parent | f32b4b467ebd8a035f8342b7ea27efc84b10d96b (diff) | |
| download | linux-next-5f66e18755963537d6cd125bde4ec559f2991a75.tar.gz | |
Merge patch series "RISC-V: Dynamic ftrace support for RV32I"
Jamie Iles <jamie@jamieiles.com> says:
This series enables dynamic ftrace support for RV32I bringing it to
parity with RV64I. Most of the work is already there, this is largely
just assembly fixes to handle register sizes, correct handling of the
psABI calling convention and Kconfig change.
Validated with all ftrace boot time self test with qemu for RV32I and
RV64I in addition to real tracing on an RV32I FPGA design.
* b4-shazam-merge:
RISC-V: enable dynamic ftrace for RV32I
RISC-V: preserve a1 in mcount
RISC-V: reduce mcount save space on RV32
RISC-V: use REG_S/REG_L for mcount
Link: https://lore.kernel.org/r/20221115200832.706370-1-jamie@jamieiles.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/Kconfig')
| -rw-r--r-- | arch/riscv/Kconfig | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 3b41165a8b10..8d47562be90c 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -131,6 +131,11 @@ config RISCV select TRACE_IRQFLAGS_SUPPORT select UACCESS_MEMCPY if !MMU select ZONE_DMA32 if 64BIT + select HAVE_DYNAMIC_FTRACE if !XIP_KERNEL && MMU && $(cc-option,-fpatchable-function-entry=8) + select HAVE_DYNAMIC_FTRACE_WITH_REGS if HAVE_DYNAMIC_FTRACE + select HAVE_FTRACE_MCOUNT_RECORD if !XIP_KERNEL + select HAVE_FUNCTION_GRAPH_TRACER + select HAVE_FUNCTION_TRACER if !XIP_KERNEL config ARCH_MMAP_RND_BITS_MIN default 18 if 64BIT @@ -276,11 +281,6 @@ config ARCH_RV64I bool "RV64I" select 64BIT select ARCH_SUPPORTS_INT128 if CC_HAS_INT128 - select HAVE_DYNAMIC_FTRACE if !XIP_KERNEL && MMU && $(cc-option,-fpatchable-function-entry=8) - select HAVE_DYNAMIC_FTRACE_WITH_REGS if HAVE_DYNAMIC_FTRACE - select HAVE_FTRACE_MCOUNT_RECORD if !XIP_KERNEL - select HAVE_FUNCTION_GRAPH_TRACER - select HAVE_FUNCTION_TRACER if !XIP_KERNEL select SWIOTLB if MMU endchoice |