diff options
Diffstat (limited to 'meta-oe/recipes-dbs/rocksdb/files/0001-range_tree-Implement-toku_time_now-for-rv32-rv64-in-.patch')
-rw-r--r-- | meta-oe/recipes-dbs/rocksdb/files/0001-range_tree-Implement-toku_time_now-for-rv32-rv64-in-.patch | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/meta-oe/recipes-dbs/rocksdb/files/0001-range_tree-Implement-toku_time_now-for-rv32-rv64-in-.patch b/meta-oe/recipes-dbs/rocksdb/files/0001-range_tree-Implement-toku_time_now-for-rv32-rv64-in-.patch new file mode 100644 index 0000000000..86c1bffea6 --- /dev/null +++ b/meta-oe/recipes-dbs/rocksdb/files/0001-range_tree-Implement-toku_time_now-for-rv32-rv64-in-.patch @@ -0,0 +1,44 @@ +From 89c032a9b4011385c0b504ea61e5df0db71f0ff5 Mon Sep 17 00:00:00 2001 +From: Khem Raj <raj.khem@gmail.com> +Date: Wed, 16 Jun 2021 19:06:02 -0700 +Subject: [PATCH] range_tree: Implement toku_time_now for rv32/rv64 in asm + +Upstream-Status: Pending +Signed-off-by: Khem Raj <raj.khem@gmail.com> +--- + .../range_tree/lib/portability/toku_time.h | 19 +++++++++++++++++++ + 1 file changed, 19 insertions(+) + +diff --git a/utilities/transactions/lock/range/range_tree/lib/portability/toku_time.h b/utilities/transactions/lock/range/range_tree/lib/portability/toku_time.h +index 4425a4a2e..4ac964f85 100644 +--- a/utilities/transactions/lock/range/range_tree/lib/portability/toku_time.h ++++ b/utilities/transactions/lock/range/range_tree/lib/portability/toku_time.h +@@ -133,6 +133,25 @@ static inline tokutime_t toku_time_now(void) { + return result; + #elif defined(__powerpc__) + return __ppc_get_timebase(); ++#elif defined(__riscv) // RISC-V ++#if __riscv_xlen == 32 ++ uint32_t lo, hi0, hi1; ++ __asm __volatile__( ++ "rdcycleh %0\n" ++ "rdcycle %1\n" ++ "rdcycleh %2\n" ++ "sub %0, %0, %2\n" ++ "seqz %0, %0\n" ++ "sub %0, zero, %0\n" ++ "and %1, %1, %0\n" ++ : "=r"(hi0), "=r"(lo), "=r"(hi1)); ++ return ((uint64_t)hi1 << 32) | lo; ++#else ++ uint64_t result; ++ __asm __volatile__("rdcycle %0" : "=r"(result)); ++ return result; ++#endif ++ + #else + #error No timer implementation for this platform + #endif +-- +2.32.0 + |