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* [igt-dev] [PATCH] [i-g-t] tests/amdgpu/amd_bypass: Skip test when DP Rx output bpc < 8 bpc
@ 2023-06-20 21:20 Hersen Wu
  2023-06-20 22:28 ` Alex Hung
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Hersen Wu @ 2023-06-20 21:20 UTC (permalink / raw)
  To: igt-dev, rodrigo.siqueira, aurabindo.pillai, alex.hung,
	stylon.wang, hamza.mahfooz
  Cc: Hersen Wu

Check DP or eDP Rx output bpc, skip test when output bpc is
less than 8bpc.

This test compares CRC of CRTC and Rx. It needs both CRTC_CRC
and Rx-CRC with 8bpc. If CRTC-CRC with 8bpc, but Rx-CRC with
6bpc, then their values  will not match.

Signed-off-by: Hersen Wu <hersenxs.wu@amd.com>
---
 tests/amdgpu/amd_bypass.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/tests/amdgpu/amd_bypass.c b/tests/amdgpu/amd_bypass.c
index d191779b0..d192a30ea 100644
--- a/tests/amdgpu/amd_bypass.c
+++ b/tests/amdgpu/amd_bypass.c
@@ -331,6 +331,13 @@ static void bypass_8bpc_test(data_t *data)
 	igt_skip_on_f(igt_amd_read_dsc_clock_status(data->drm_fd, data->output->name) == 1,
 		      "DSC enabled on %s and no sense to validate bypass mode\n", data->output->name);
 
+	/* 8bpc bypass only valid when DP or eDP Rx supports 8bpc or up. When
+	 * Rx supports only up to 6bpc, Rx-crc will different from crtc-crc
+	 * with 8bpc.
+	 */
+	igt_skip_on_f(igt_get_output_max_bpc(data->drm_fd, data->output->name) <= 6,
+		      "check /sys/kernel/debug/dri/0/eDP-1 (connector)/output_bpc\n");
+
 	igt_create_fb(data->drm_fd, data->width, data->height,
 		      DRM_FORMAT_XRGB8888, DRM_FORMAT_MOD_LINEAR, &fb);
 
-- 
2.25.1

^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2023-06-21  8:16 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2023-06-20 21:20 [igt-dev] [PATCH] [i-g-t] tests/amdgpu/amd_bypass: Skip test when DP Rx output bpc < 8 bpc Hersen Wu
2023-06-20 22:28 ` Alex Hung
2023-06-20 23:22 ` [igt-dev] ✓ Fi.CI.BAT: success for " Patchwork
2023-06-21  8:16 ` [igt-dev] ✓ Fi.CI.IGT: " Patchwork

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