diff options
| -rw-r--r-- | .gitmodules | 3 | ||||
| -rw-r--r-- | benchmarks/Makefile | 1 | ||||
| -rw-r--r-- | benchmarks/ioexample/bmark.mk | 30 | ||||
| -rw-r--r-- | benchmarks/ioexample/ioexample_main.c | 51 | ||||
| m--------- | benchmarks/ioexample/libamf | 0 |
5 files changed, 85 insertions, 0 deletions
diff --git a/.gitmodules b/.gitmodules index a557616..2765f62 100644 --- a/.gitmodules +++ b/.gitmodules @@ -1,3 +1,6 @@ [submodule "env"] path = env url = https://github.com/riscv/riscv-test-env.git +[submodule "benchmarks/ioexample/libamf"] + path = benchmarks/ioexample/libamf + url = git://github.com/palmer-dabbelt/libamf.git diff --git a/benchmarks/Makefile b/benchmarks/Makefile index e294f72..b301a10 100644 --- a/benchmarks/Makefile +++ b/benchmarks/Makefile @@ -27,6 +27,7 @@ bmarks = \ spmv \ mt-vvadd \ mt-matmul \ + ioexample \ bmarks_host = \ median \ diff --git a/benchmarks/ioexample/bmark.mk b/benchmarks/ioexample/bmark.mk new file mode 100644 index 0000000..b0897c7 --- /dev/null +++ b/benchmarks/ioexample/bmark.mk @@ -0,0 +1,30 @@ +#======================================================================= +# UCB CS250 Makefile fragment for benchmarks +#----------------------------------------------------------------------- +# +# Each benchmark directory should have its own fragment which +# essentially lists what the source files are and how to link them +# into an riscv and/or host executable. All variables should include +# the benchmark name as a prefix so that they are unique. +# + +ioexample_c_src = \ + ioexample_main.c \ + syscalls.c \ + +ioexample_riscv_src = \ + crt.S \ + +ioexample_c_objs = $(patsubst %.c, %.o, $(ioexample_c_src)) +ioexample_riscv_objs = $(patsubst %.S, %.o, $(ioexample_riscv_src)) + +ioexample_host_bin = ioexample.host +$(ioexample_host_bin) : $(ioexample_c_src) + $(HOST_COMP) $^ -o $(ioexample_host_bin) + +ioexample_riscv_bin = ioexample.riscv +$(ioexample_riscv_bin) : $(ioexample_c_objs) $(ioexample_riscv_objs) + $(RISCV_LINK) $(ioexample_c_objs) $(ioexample_riscv_objs) -o $(ioexample_riscv_bin) $(RISCV_LINK_OPTS) + +junk += $(ioexample_c_objs) $(ioexample_riscv_objs) \ + $(ioexample_host_bin) $(ioexample_riscv_bin) diff --git a/benchmarks/ioexample/ioexample_main.c b/benchmarks/ioexample/ioexample_main.c new file mode 100644 index 0000000..bd411d8 --- /dev/null +++ b/benchmarks/ioexample/ioexample_main.c @@ -0,0 +1,51 @@ +// See LICENSE for license details. + +#include "util.h" +#include "libamf/src/amf.h" + +const char *find_config_string(void) +{ + const int* boot_rom = (int*)(0x1000); + const int config_string_addr_offset = 3; + const char *config_string = (char *)((long)boot_rom[config_string_addr_offset]); + return config_string; +} + +long fromhex(char c) +{ + if (c >= 'A' && c <= 'F') return c - 'A' + 10; + if (c >= 'a' && c <= 'f') return c - 'a' + 10; + if (c >= '0' && c <= '9') return c - '0' + 0; + return -1; +} + +long tolong(const char *config_snippet) +{ + if (config_snippet[0] == '0' && config_snippet[1] == 'x') + config_snippet += 2; + + long out = 0; + while (*config_snippet != '\0' && *config_snippet != ';') + out = (out << 4) + fromhex(*config_snippet++); + + return out; +} + +int main( int argc, char* argv[] ) +{ + volatile long *base = (long *)(tolong(amf_lookup(find_config_string(), "smiexample/addr"))); + printf("smiexample/addr: %lx\n", base); + + base[1] = 10; // Period + base[2] = 2; // Duty Cycle + base[0] = 1; // Enable + + printf("Peroid: %d\n", base[1]); + + base[1] = 15; // Peroid + base[2] = 7; // Duty Cycle + + printf("Peroid: %d\n", base[1]); + + return 0; +} diff --git a/benchmarks/ioexample/libamf b/benchmarks/ioexample/libamf new file mode 160000 +Subproject 9d28f8d3adbed4654a95ebbf383134db26be5d9 |