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tests/gem_seqno_wrap: skip if debugfs entry is not there

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Return error code 77 to skip test if debugfs entry is not
available.

Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=59116
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Mika Kuoppala 2013-01-08 13:16:06 +02:00 committed by Daniel Vetter
parent 2d0a8e8545
commit c612481a19
1 changed files with 29 additions and 14 deletions
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43
tests/gem_seqno_wrap.c
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@ -49,6 +49,7 @@
#include "rendercopy.h"
static int devid;
static int card_index = 0;
static uint32_t last_seqno = 0;
static struct intel_batchbuffer *batch_blt;
@ -355,7 +356,27 @@ static int run_cmd(char *s)
return r;
}
static const char *debug_fs_entry = "/sys/kernel/debug/dri/0/i915_next_seqno";
static const char *dfs_base = "/sys/kernel/debug/dri";
static const char *dfs_entry = "i915_next_seqno";
static int dfs_open(int mode)
{
char fname[FILENAME_MAX];
int fh;
snprintf(fname, FILENAME_MAX, "%s/%i/%s",
dfs_base, card_index, dfs_entry);
fh = open(fname, mode);
if (fh == -1) {
fprintf(stderr,
"error %d opening '%s/%d/%s'. too old kernel?\n",
errno, dfs_base, card_index, dfs_entry);
exit(77);
}
return fh;
}
static int __read_seqno(uint32_t *seqno)
{
@ -365,12 +386,7 @@ static int __read_seqno(uint32_t *seqno)
char *p;
unsigned long int tmp;
fh = open(debug_fs_entry, O_RDWR);
if (fh == -1) {
perror("open");
fprintf(stderr, "no %s found, too old kernel?\n", debug_fs_entry);
return -errno;
}
fh = dfs_open(O_RDONLY);
r = read(fh, buf, sizeof(buf) - 1);
close(fh);
@ -385,8 +401,9 @@ static int __read_seqno(uint32_t *seqno)
if (!p)
p = buf;
errno = 0;
tmp = strtoul(p, NULL, 0);
if (tmp == ULONG_MAX) {
if (tmp == ULONG_MAX && errno) {
perror("strtoul");
return -errno;
}
@ -425,12 +442,7 @@ static int write_seqno(uint32_t seqno)
if (options.dontwrap)
return 0;
fh = open(debug_fs_entry, O_RDWR);
if (fh == -1) {
perror("open");
return -errno;
}
fh = dfs_open(O_RDWR);
assert(snprintf(buf, sizeof(buf), "0x%x", seqno) > 0);
r = write(fh, buf, strnlen(buf, sizeof(buf)));
@ -627,6 +639,9 @@ int main(int argc, char **argv)
parse_options(argc, argv);
card_index = drm_get_card(0);
assert(card_index != -1);
srandom(time(NULL));
while(options.rounds == 0 || wcount < options.rounds) {