avivotool: allow reading regs from given range

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/avivotool.c b/avivotool.c
index 7626f70..b935bd3 100644
--- a/avivotool.c
+++ b/avivotool.c
@@ -184,6 +184,8 @@ static void usage(void)
     printf("         --skip=1           - use the second radeon card\n");
     printf("         regs <set>         - show a listing of some random registers\n");
     printf("                              <set> restricts: all, core, mc, crtc1, cur1\n");
+    printf("         regsrange <start> <end> - show registers for a given range (wrong\n");
+    printf("                                   range can result in lockup!)\n");
     printf("         regmatch <pattern> - show registers matching wildcard pattern\n");
     printf("         regset <pattern> <value> - set registers matching wildcard pattern\n");
     printf("         romtables <path>   - dumps the BIOS tables from either a given path\n");
@@ -1600,6 +1602,15 @@ void radeon_cmd_regs(const char *type)
 
 }
 
+void radeon_regsrange(unsigned int start, unsigned int end)
+{
+    int i;
+    uint32_t tmp;
+    start -= start % 4; /* align access */
+    for (i = start; i <= end; i += 4)
+        SHOW_UNKNOWN_REG(i);
+}
+
 void radeon_reg_match(const char *pattern)
 {
     int i;
@@ -2293,6 +2304,11 @@ int main(int argc, char *argv[])
         }
     }
     else if (argc == 4) {
+        if (strcmp(argv[1], "regsrange") == 0) {
+            radeon_regsrange(strtoul(argv[2], NULL, 0),
+                             strtoul(argv[3], NULL, 0));
+            return 0;
+        }
         if (strcmp(argv[1], "regset") == 0) {
             radeon_reg_set(argv[2], strtoul(argv[3], NULL, 0));
             return 0;