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kms_psr_sink_crc: Simplify debugfs reading.

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Let's start using igt_debugfs_read helper so we
can change the debugfs interface at anytime.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
This commit is contained in:
Rodrigo Vivi 2016-01-08 07:40:45 -08:00
parent f1bb20eb7c
commit 05ac611358
1 changed files with 8 additions and 49 deletions
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57
tests/kms_psr_sink_crc.c
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@ -199,63 +199,22 @@ static void fill_render(data_t *data, uint32_t handle, unsigned char color)
static bool psr_possible(data_t *data) static bool psr_possible(data_t *data)
{ {
FILE *file; char buf[512];
char buf[4096];
int ret;
if (running_with_psr_disabled) igt_debugfs_read("i915_edp_psr_status", buf);
return true;
file = igt_debugfs_fopen("i915_edp_psr_status", "r"); return running_with_psr_disabled ||
igt_require(file); strstr(buf, "Sink_Support: yes\n");
/* First dump the entire file into the debug log for later analysis
* if required.
*/
ret = fread(buf, 1, 4095, file);
igt_require(ret > 0);
buf[ret] = '\0';
igt_debug("i915_edp_psr_status:\n%s", buf);
fseek(file, 0, SEEK_SET);
/* Now check that we have all the preconditions required for PSR */
ret = fscanf(file, "Sink_Support: %s\n", buf);
igt_require_f(ret == 1 && strcmp(buf, "yes") == 0,
"Sink_Support: %s\n", buf);
fclose(file);
return true;
} }
static bool psr_active(data_t *data) static bool psr_active(data_t *data)
{ {
int ret; char buf[512];
FILE *file;
char str[4];
if (running_with_psr_disabled) igt_debugfs_read("i915_edp_psr_status", buf);
return true;
file = igt_debugfs_fopen("i915_edp_psr_status", "r"); return running_with_psr_disabled ||
igt_require(file); strstr(buf, "HW Enabled & Active bit: yes\n");
ret = fscanf(file, "Sink_Support: %s\n", str);
igt_assert_neq(ret, 0);
ret = fscanf(file, "Source_OK: %s\n", str);
igt_assert_neq(ret, 0);
ret = fscanf(file, "Enabled: %s\n", str);
igt_assert_neq(ret, 0);
ret = fscanf(file, "Active: %s\n", str);
igt_assert_neq(ret, 0);
ret = fscanf(file, "Busy frontbuffer bits: %s\n", str);
igt_assert_neq(ret, 0);
ret = fscanf(file, "Re-enable work scheduled: %s\n", str);
igt_assert_neq(ret, 0);
ret = fscanf(file, "HW Enabled & Active bit: %s\n", str);
igt_assert_neq(ret, 0);
fclose(file);
return strcmp(str, "yes") == 0;
} }
static bool wait_psr_entry(data_t *data) static bool wait_psr_entry(data_t *data)