Luke Nelson bfabff3cb0 bpf, riscv: Modify JIT ctx to support compressed instructions ... This patch makes the necessary changes to struct rv_jit_context and to bpf_int_jit_compile to support compressed riscv (RVC) instructions in the BPF JIT. It changes the JIT image to be u16 instead of u32, since RVC instructions are 2 bytes as opposed to 4. It also changes ctx->offset and ctx->ninsns to refer to 2-byte instructions rather than 4-byte ones. The riscv PC is required to be 16-bit aligned with or without RVC, so this is sufficient to refer to any valid riscv offset. The code for computing jump offsets in bytes is updated accordingly, and factored into a new "ninsns_rvoff" function to simplify the code. Signed-off-by: Luke Nelson <luke.r.nels@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200721025241.8077-2-luke.r.nels@gmail.com		2020-07-21 13:26:25 -07:00
..
boot	riscv: K210: Add a built-in device tree	2020-05-18 11:38:06 -07:00
configs	riscv: K210: Update defconfig	2020-05-18 11:38:07 -07:00
include	riscv/atomic: Fix sign extension for RV64I	2020-06-12 12:07:58 -07:00
kernel	riscv: Fixup __vdso_gettimeofday broke dynamic ftrace	2020-06-25 15:38:39 -07:00
lib	RISC-V Patches for the 5.7 Merge Window, Part 1	2020-04-09 10:51:30 -07:00
mm	RISC-V: Acquire mmap lock before invoking walk_page_range	2020-06-18 18:46:09 -07:00
net	bpf, riscv: Modify JIT ctx to support compressed instructions	2020-07-21 13:26:25 -07:00
Kbuild	riscv: Allow device trees to be built into the kernel	2020-05-18 11:38:05 -07:00
Kconfig	riscv: use vDSO common flow to reduce the latency of the time-related functions	2020-06-10 19:47:16 -07:00
Kconfig.debug	RISC-V: Remove EARLY_PRINTK support	2018-12-17 10:23:46 -08:00
Kconfig.socs	riscv: K210: Add a built-in device tree	2020-05-18 11:38:06 -07:00
Makefile	RISC-V Patches for the 5.7 Merge Window, Part 1	2020-04-09 10:51:30 -07:00