diff mbox

[i-g-t,1/2] kms_psr_sink_crc: Introduce PSR BAT test.

Message ID 1449482810-22540-1-git-send-email-rodrigo.vivi@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Rodrigo Vivi Dec. 7, 2015, 10:06 a.m. UTC
This simple test checks if PSR is enabled when it should.
Minimal and fastest check possible.

To make it faster for BAT we first check if it is enabled and return
Success. We just do the dpms_on in case psr is not enabled. So it was
probably because display went off maybe in idle. Even for this case
the test case is fast enough: ~ 1s.

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
 tests/kms_psr_sink_crc.c | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

Comments

Daniel Vetter Dec. 8, 2015, 10:44 a.m. UTC | #1
On Mon, Dec 07, 2015 at 02:06:49AM -0800, Rodrigo Vivi wrote:
> This simple test checks if PSR is enabled when it should.
> Minimal and fastest check possible.
> 
> To make it faster for BAT we first check if it is enabled and return
> Success. We just do the dpms_on in case psr is not enabled. So it was
> probably because display went off maybe in idle. Even for this case
> the test case is fast enough: ~ 1s.

Please don't do that. If you need a mode enabled, enable it. We have some
other not-so-awesome testcase which try to inherit modeset state from
fbcon and then sometimes fall over.

If that causes too much delay due to unecessary modesets, then we need to
extract a bit of logic into libraries to make sure everyone uses the same
setup for basic tests, and that we don't force a modeset by accident
in-between (either the test or fbcon).
-Daniel

> 
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
> ---
>  tests/kms_psr_sink_crc.c | 36 ++++++++++++++++++++++++++++++++++++
>  1 file changed, 36 insertions(+)
> 
> diff --git a/tests/kms_psr_sink_crc.c b/tests/kms_psr_sink_crc.c
> index 8cd11a7..28ba5c2 100644
> --- a/tests/kms_psr_sink_crc.c
> +++ b/tests/kms_psr_sink_crc.c
> @@ -227,6 +227,26 @@ static bool psr_possible(data_t *data)
>  	return true;
>  }
>  
> +static bool psr_enabled(data_t *data)
> +{
> +	int ret;
> +	FILE *file;
> +	char str[4];
> +
> +	file = igt_debugfs_fopen("i915_edp_psr_status", "r");
> +	igt_require(file);
> +
> +	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);
> +
> +	fclose(file);
> +	return strcmp(str, "yes") == 0;
> +}
> +
>  static bool psr_active(data_t *data)
>  {
>  	int ret;
> @@ -569,6 +589,22 @@ int main(int argc, char *argv[])
>  		display_init(&data);
>  	}
>  
> +	igt_subtest("psr_enabled_basic") {
> +		if (psr_enabled(&data))
> +			igt_success();
> +		else {
> +			/*
> +			 * The only excuse to have PSR disabled at this point
> +			 * is if dpms is off for some reason. So let's try to
> +			 * force dpms on and check if that was the case.
> +			 */
> +			kmstest_set_connector_dpms(data.drm_fd,
> +						   data.output->config.connector,
> +						   DRM_MODE_DPMS_ON);
> +			igt_assert(psr_enabled(&data));
> +		}
> +	}
> +
>  	for (op = PAGE_FLIP; op <= RENDER; op++) {
>  		igt_subtest_f("primary_%s", op_str(op)) {
>  			data.test_plane = PRIMARY;
> -- 
> 2.4.3
>
diff mbox

Patch

diff --git a/tests/kms_psr_sink_crc.c b/tests/kms_psr_sink_crc.c
index 8cd11a7..28ba5c2 100644
--- a/tests/kms_psr_sink_crc.c
+++ b/tests/kms_psr_sink_crc.c
@@ -227,6 +227,26 @@  static bool psr_possible(data_t *data)
 	return true;
 }
 
+static bool psr_enabled(data_t *data)
+{
+	int ret;
+	FILE *file;
+	char str[4];
+
+	file = igt_debugfs_fopen("i915_edp_psr_status", "r");
+	igt_require(file);
+
+	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);
+
+	fclose(file);
+	return strcmp(str, "yes") == 0;
+}
+
 static bool psr_active(data_t *data)
 {
 	int ret;
@@ -569,6 +589,22 @@  int main(int argc, char *argv[])
 		display_init(&data);
 	}
 
+	igt_subtest("psr_enabled_basic") {
+		if (psr_enabled(&data))
+			igt_success();
+		else {
+			/*
+			 * The only excuse to have PSR disabled at this point
+			 * is if dpms is off for some reason. So let's try to
+			 * force dpms on and check if that was the case.
+			 */
+			kmstest_set_connector_dpms(data.drm_fd,
+						   data.output->config.connector,
+						   DRM_MODE_DPMS_ON);
+			igt_assert(psr_enabled(&data));
+		}
+	}
+
 	for (op = PAGE_FLIP; op <= RENDER; op++) {
 		igt_subtest_f("primary_%s", op_str(op)) {
 			data.test_plane = PRIMARY;