[RFC v4][PATCH part-3 13/14] asidrv/asicmd: Add options to manage ASI page faults

[Alexandre Chartre]

Add options to the asicmd CLI to list and clear ASI page faults. Also
add an option to enable/disable displaying stack trace on ASI page
fault.

Signed-off-by: Alexandre Chartre <alexandre.char...@oracle.com>
---
 drivers/staging/asi/asicmd.c | 68 ++++++++++++++++++++++++++++++++++--
 1 file changed, 65 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/asi/asicmd.c b/drivers/staging/asi/asicmd.c
index 849fa09423e6..4d7bb9df0fcc 100644
--- a/drivers/staging/asi/asicmd.c
+++ b/drivers/staging/asi/asicmd.c
@@ -52,6 +52,10 @@ static void usage(void)
        printf("\n");
        printf("Commands:\n");
        printf("  all      - run all tests\n");
+       printf("  fault    - list ASI faults\n");
+       printf("  fltclr   - clear ASI faults\n");
+       printf("  stkon    - show stack on ASI fault\n");
+       printf("  stkoff   - do not show stack on ASI fault\n");
        printf("\n");
        printf("Tests:\n");
        for (i = 0; i < TEST_LIST_SIZE; i++)
@@ -91,10 +95,45 @@ static void asidrv_run_test(int fd, struct asidrv_test 
*test)
                printf("TEST OK\n");
 }
 
+static int asidrv_fault_list(int fd)
+{
+       struct asidrv_fault_list *flist;
+       int i, rv;
+
+       flist = malloc(sizeof(*flist) +
+                      sizeof(struct asidrv_fault) * 10);
+       if (!flist) {
+               perror("malloc flist");
+               return -1;
+       }
+
+       flist->length = 10;
+       rv = ioctl(fd, ASIDRV_IOCTL_LIST_FAULT, flist);
+       if (rv < 0) {
+               perror("ioctl list fault");
+               return -1;
+       }
+
+       if (!flist->length) {
+               printf("ASI has no fault\n");
+               return 0;
+       }
+
+       printf("%-18s  %5s  %s\n", "ADDRESS", "COUNT", "SYMBOL");
+       for (i = 0; i < flist->length && i < 10; i++) {
+               printf("%#18llx  %5u  %s\n",
+                      flist->fault[i].addr,
+                      flist->fault[i].count,
+                      flist->fault[i].symbol);
+       }
+
+       return 0;
+}
+
 int main(int argc, char *argv[])
 {
        bool run_all, run;
-       int i, j, fd;
+       int i, j, fd, err;
        char *test;
 
        if (argc <= 1) {
@@ -111,10 +150,33 @@ int main(int argc, char *argv[])
        for (i = 1; i < argc; i++) {
                test = argv[i];
 
-               if (!strcmp(test, "all"))
+               if (!strcmp(test, "fault")) {
+                       asidrv_fault_list(fd);
+                       continue;
+
+               } else if (!strcmp(test, "fltclr")) {
+                       err = ioctl(fd, ASIDRV_IOCTL_CLEAR_FAULT);
+                       if (err)
+                               perror("ioctl clear fault");
+                       continue;
+
+               } else if (!strcmp(test, "stkon")) {
+                       err = ioctl(fd, ASIDRV_IOCTL_LOG_FAULT_STACK, true);
+                       if (err)
+                               perror("ioctl log fault stack");
+                       continue;
+
+               } else if (!strcmp(test, "stkoff")) {
+                       err = ioctl(fd, ASIDRV_IOCTL_LOG_FAULT_STACK, false);
+                       if (err)
+                               perror("ioctl log fault sstack");
+                       continue;
+
+               } else if (!strcmp(test, "all")) {
                        run_all = true;
-               else
+               } else {
                        run_all = false;
+               }
 
                run = false;
                for (j = 0; j < TEST_LIST_SIZE; j++) {
-- 
2.18.2