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| author | Andrew Waterman <andrew@sifive.com> | 2018-01-02 20:34:01 +0000 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 2018-01-02 12:34:01 -0800 |
| commit | f1bdc63a898f2fa164e79528c03e96a21a779e82 (patch) | |
| tree | 57d866c19352e762105309dc99d34dd530f91286 /gcc/config/riscv | |
| parent | a7e92aff74d014fba5765654333b2dbb2b294913 (diff) | |
| download | gcc-f1bdc63a898f2fa164e79528c03e96a21a779e82.zip gcc-f1bdc63a898f2fa164e79528c03e96a21a779e82.tar.gz gcc-f1bdc63a898f2fa164e79528c03e96a21a779e82.tar.bz2 | |
RISC-V: Fix for icache flush issue on multicore processors.
gcc/
* config/riscv/linux.h (ICACHE_FLUSH_FUNC): New.
* config/riscv/riscv.md (clear_cache): Use it.
From-SVN: r256109
Diffstat (limited to 'gcc/config/riscv')
| -rw-r--r-- | gcc/config/riscv/linux.h | 2 | ||||
| -rw-r--r-- | gcc/config/riscv/riscv.md | 6 |
2 files changed, 8 insertions, 0 deletions
diff --git a/gcc/config/riscv/linux.h b/gcc/config/riscv/linux.h index 6c7e3c4..4b2f7b6 100644 --- a/gcc/config/riscv/linux.h +++ b/gcc/config/riscv/linux.h @@ -45,6 +45,8 @@ along with GCC; see the file COPYING3. If not see #define LIB_SPEC GNU_USER_TARGET_LIB_SPEC " -latomic " #endif +#define ICACHE_FLUSH_FUNC "__riscv_flush_icache" + #define LINK_SPEC "\ -melf" XLEN_SPEC "lriscv \ %{shared} \ diff --git a/gcc/config/riscv/riscv.md b/gcc/config/riscv/riscv.md index db4fed4..dab54ad 100644 --- a/gcc/config/riscv/riscv.md +++ b/gcc/config/riscv/riscv.md @@ -1456,7 +1456,13 @@ (match_operand 1 "pmode_register_operand")] "" { +#ifdef ICACHE_FLUSH_FUNC + emit_library_call (gen_rtx_SYMBOL_REF (Pmode, ICACHE_FLUSH_FUNC), + LCT_NORMAL, VOIDmode, operands[0], Pmode, + operands[1], Pmode, const0_rtx, Pmode); +#else emit_insn (gen_fence_i ()); +#endif DONE; }) |