[Intel-gfx] [PATCH 2/3] intel_reg_read: support reading multiple registers

[Eugeni Dodonov]

The registers must be passed on the command line and will be read
sequentially, one at a time.

Signed-off-by: Eugeni Dodonov <eugeni.dodo...@intel.com>
---
 tools/intel_reg_read.c |   12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/tools/intel_reg_read.c b/tools/intel_reg_read.c
index c3e559b..50b3d39 100644
--- a/tools/intel_reg_read.c
+++ b/tools/intel_reg_read.c
@@ -43,7 +43,7 @@ static void dump_range(uint32_t start, uint32_t end)
 
 static void usage(char *cmdname)
 {
-       printf("Usage: %s [-f | addr]\n", cmdname);
+       printf("Usage: %s [-f] [addr1] [addr2] .. [addrN]\n", cmdname);
        printf("\t -f : read back full range of registers.\n");
        printf("\t      WARNING! This could be danger to hang the machine!\n");
        printf("\t addr : in 0xXXXX format\n");
@@ -53,7 +53,7 @@ int main(int argc, char** argv)
 {
        int ret=0;
        uint32_t reg;
-       int ch;
+       int i, ch;
        char *cmdname = strdup(argv[0]);
        int full_dump=0;
 
@@ -71,7 +71,7 @@ int main(int argc, char** argv)
        argc -= optind;
        argv += optind;
 
-       if (argc != 1) {
+       if (argc < 1) {
                usage(cmdname);
                ret=1;
                goto out;
@@ -95,8 +95,10 @@ int main(int argc, char** argv)
                dump_range(0x70000, 0x72fff);   /* display and cursor registers 
*/
                dump_range(0x73000, 0x73fff);   /* performance counters */
        } else {
-               sscanf(argv[0], "0x%x", &reg);
-               dump_range(reg, reg + 4);
+               for (i=0; i < argc; i++) {
+                       sscanf(argv[i], "0x%x", &reg);
+                       dump_range(reg, reg + 4);
+               }
        }
 
        intel_register_access_fini();
-- 
1.7.9.2

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