diff options
| -rw-r--r-- | tools/intel_reg_read.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/tools/intel_reg_read.c b/tools/intel_reg_read.c index 5f94fed1..6187a4be 100644 --- a/tools/intel_reg_read.c +++ b/tools/intel_reg_read.c @@ -32,6 +32,19 @@ #include <string.h> #include "intel_gpu_tools.h" +static void bit_decode(uint32_t reg) +{ + int i; + + for (i=31; i >= 0; i--) + printf(" %2d", i); + printf("\n"); + + for (i=31; i >= 0; i--) + printf(" %2d", (reg & (1 << i)) && 1); + printf("\n"); +} + static void dump_range(uint32_t start, uint32_t end) { int i; @@ -43,9 +56,10 @@ static void dump_range(uint32_t start, uint32_t end) static void usage(char *cmdname) { - printf("Usage: %s [-f] [addr1] [addr2] .. [addrN]\n", cmdname); + printf("Usage: %s [-f|-d] [addr1] [addr2] .. [addrN]\n", cmdname); printf("\t -f : read back full range of registers.\n"); printf("\t WARNING! This option may result in a machine hang!\n"); + printf("\t -d : decode register bits.\n"); printf("\t addr : in 0xXXXX format\n"); } @@ -56,9 +70,13 @@ int main(int argc, char** argv) int i, ch; char *cmdname = strdup(argv[0]); int full_dump = 0; + int decode_bits = 0; - while ((ch = getopt(argc, argv, "fh")) != -1) { + while ((ch = getopt(argc, argv, "dfh")) != -1) { switch(ch) { + case 'd': + decode_bits = 1; + break; case 'f': full_dump = 1; break; @@ -98,6 +116,9 @@ int main(int argc, char** argv) for (i=0; i < argc; i++) { sscanf(argv[i], "0x%x", ®); dump_range(reg, reg + 4); + + if (decode_bits) + bit_decode(*(volatile uint32_t *)((volatile char*)mmio + reg)); } } |