[PATCH i-g-t] Revert tests/kms_histogram: Fix build breakage

Lucas De Marchi lucas.demarchi at intel.com
Wed Jan 8 20:52:51 UTC 2025


This reverts commits
8911eff2c6c0 ("tests/kms_histogram: Add check for libghe version")
6e93c2e807b3 ("tests/kms_histogram: Added IGT support to validate global histogram")

Ths addition of libghe version check didn't really work as the released
libghe exposes a 1.0.0 version:

	Run-time dependency libghe found: YES 1.0

Let's revert this and come back to that when there's a released libghe
that works and doesn't keep changing the API.

Cc: Kamil Konieczny <kamil.konieczny at intel.com>
Cc: Mohammed Thasleem <mohammed.thasleem at intel.com>
Cc: Arun R Murthy <arun.r.murthy at intel.com>
Cc: Nemesa Garg <nemesa.garg at intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
---
 lib/igt_kms.c         |  23 ---
 lib/igt_kms.h         |   5 -
 meson.build           |   5 -
 tests/kms_histogram.c | 349 ------------------------------------------
 tests/meson.build     |   2 -
 5 files changed, 384 deletions(-)
 delete mode 100644 tests/kms_histogram.c

diff --git a/lib/igt_kms.c b/lib/igt_kms.c
index 95e3059f7..9d21cce1e 100644
--- a/lib/igt_kms.c
+++ b/lib/igt_kms.c
@@ -714,9 +714,6 @@ const char * const igt_crtc_prop_names[IGT_NUM_CRTC_PROPS] = {
 	[IGT_CRTC_OUT_FENCE_PTR] = "OUT_FENCE_PTR",
 	[IGT_CRTC_VRR_ENABLED] = "VRR_ENABLED",
 	[IGT_CRTC_SCALING_FILTER] = "SCALING_FILTER",
-	[IGT_CRTC_HISTOGRAM] = "HISTOGRAM_ENABLE",
-	[IGT_CRTC_GLOBAL_HISTOGRAM] = "HISTOGRAM_DATA",
-	[IGT_CRTC_GLOBAL_HIST_PIXEL_FACTOR] = "HISTOGRAM_IET",
 };
 
 const char * const igt_connector_prop_names[IGT_NUM_CONNECTOR_PROPS] = {
@@ -2618,9 +2615,6 @@ static void igt_pipe_reset(igt_pipe_t *pipe)
 	if (igt_pipe_obj_has_prop(pipe, IGT_CRTC_VRR_ENABLED))
 		igt_pipe_obj_set_prop_value(pipe, IGT_CRTC_VRR_ENABLED, 0);
 
-	if (igt_pipe_obj_has_prop(pipe, IGT_CRTC_HISTOGRAM))
-		igt_pipe_obj_set_prop_value(pipe, IGT_CRTC_HISTOGRAM, 0);
-
 	pipe->out_fence_fd = -1;
 }
 
@@ -5649,23 +5643,6 @@ bool igt_lease_change_detected(struct udev_monitor *mon, int timeout_secs)
 			      ARRAY_SIZE(props));
 }
 
-/**
- * igt_global_histogram_event_detected:
- * @mon: A udev monitor initialized with #igt_watch_uevents
- * @timeout_secs: How long to wait for a lease change event to occur.
- *
- * Detect if a global Histogram event was received since we last checked the monitor.
- *
- * Returns: true if a sysfs global Histogram event was received, false if we timed out
- */
-bool igt_global_histogram_event_detected(struct udev_monitor *mon, int timeout_secs)
-{
-	const char *props[1] = {"HISTOGRAM"};
-	int expected_val = 1;
-
-	return event_detected(mon, timeout_secs, props, &expected_val, ARRAY_SIZE(props));
-}
-
 /**
  * igt_flush_uevents:
  * @mon: A udev monitor initialized with #igt_watch_uevents
diff --git a/lib/igt_kms.h b/lib/igt_kms.h
index 1e2a927ab..8810123fb 100644
--- a/lib/igt_kms.h
+++ b/lib/igt_kms.h
@@ -165,9 +165,6 @@ enum igt_atomic_crtc_properties {
        IGT_CRTC_OUT_FENCE_PTR,
        IGT_CRTC_VRR_ENABLED,
        IGT_CRTC_SCALING_FILTER,
-       IGT_CRTC_HISTOGRAM,
-       IGT_CRTC_GLOBAL_HISTOGRAM,
-       IGT_CRTC_GLOBAL_HIST_PIXEL_FACTOR,
        IGT_NUM_CRTC_PROPS
 };
 
@@ -1143,8 +1140,6 @@ void igt_cleanup_uevents(struct udev_monitor *mon);
 bool igt_display_has_format_mod(igt_display_t *display, uint32_t format, uint64_t modifier);
 bool igt_plane_has_format_mod(igt_plane_t *plane, uint32_t format, uint64_t modifier);
 
-bool igt_global_histogram_event_detected(struct udev_monitor *mon, int timeout_secs);
-
 /**
  * igt_vblank_after_eq:
  * @a: First vblank sequence number.
diff --git a/meson.build b/meson.build
index 5eda2d582..ed2a79d5a 100644
--- a/meson.build
+++ b/meson.build
@@ -197,11 +197,6 @@ else
 	chamelium = disabler()
 endif
 
-libghe = dependency('libghe', version : '>=0.2.0', required : false)
-if libghe.found()
-      config.set('HAVE_LIBGHE', 1)
-endif
-
 build_info += 'Build Chamelium test: @0@'.format(chamelium.found())
 
 pthreads = dependency('threads')
diff --git a/tests/kms_histogram.c b/tests/kms_histogram.c
deleted file mode 100644
index 3d59304ba..000000000
--- a/tests/kms_histogram.c
+++ /dev/null
@@ -1,349 +0,0 @@
-// SPDX-License-Identifier: MIT
-/*
- * Copyright © 2024 Intel Corporation
- */
-
-/**
- * TEST: kms histogram
- * Category: Display
- * Description: Test to verify histogram features.
- * Functionality: histogram
- * Mega feature: Display
- * Test category: functionality test
- */
-
-#include <errno.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <string.h>
-
-#include "igt.h"
-#include "igt_vec.h"
-#ifdef HAVE_LIBGHE
-#include "ghe.h"
-#endif
-
-#define GLOBAL_HIST_DISABLE		0
-#define GLOBAL_HIST_ENABLE		1
-#define GLOBAL_HIST_DELAY		2
-#define FLIP_COUNT			20
-
-/**
- * SUBTEST: global-basic
- * Description: Test to enable histogram, flip monochrome fbs, wait for
- *		histogram event and then read the histogram data
- *
- * SUBTEST: global-color
- * Description: Test to enable histogram, flip color fbs, wait for
- *		histogram event and then read the histogram data
- *
- * SUBTEST: algo-basic
- * Description: Test to enable histogram, flip monochrome fbs, wait for
- *		histogram event and then read the histogram data and enhance pixels by
- *		multiplying by a pixel factor using algo
- *
- * SUBTEST: algo-color
- * Description: Test to enable histogram, flip color fbs, wait for histogram event
- *		and then read the histogram data and enhance pixels by multiplying
- *		by a pixel factor using algo
- */
-
-IGT_TEST_DESCRIPTION("This test will verify the display histogram.");
-
-typedef struct data {
-	igt_display_t display;
-	int drm_fd;
-	igt_fb_t fb[5];
-} data_t;
-
-typedef void (*test_t)(data_t*, enum pipe, igt_output_t*, drmModePropertyBlobRes*);
-
-static void enable_and_verify_global_histogram(data_t *data, enum pipe pipe)
-{
-	uint32_t global_hist_value;
-
-	/* Enable global_hist */
-	igt_pipe_set_prop_value(&data->display, pipe, IGT_CRTC_HISTOGRAM, GLOBAL_HIST_ENABLE);
-	igt_display_commit2(&data->display, COMMIT_ATOMIC);
-
-	/* Verify if global_hist is enabled */
-	global_hist_value = igt_pipe_obj_get_prop(&data->display.pipes[pipe], IGT_CRTC_HISTOGRAM);
-	igt_assert_f(global_hist_value == GLOBAL_HIST_ENABLE, "Failed to enable global_hist\n");
-}
-
-static void disable_and_verify_global_histogram(data_t *data, enum pipe pipe)
-{
-	uint32_t global_hist_value;
-
-	/* Disable global_hist */
-	igt_pipe_set_prop_value(&data->display, pipe, IGT_CRTC_HISTOGRAM, GLOBAL_HIST_DISABLE);
-	igt_display_commit2(&data->display, COMMIT_ATOMIC);
-
-	/* Verify if global_hist is disabled */
-	global_hist_value = igt_pipe_obj_get_prop(&data->display.pipes[pipe], IGT_CRTC_HISTOGRAM);
-	igt_assert_f(global_hist_value == GLOBAL_HIST_DISABLE, "Failed to disable global_hist\n");
-}
-
-static void cleanup_pipe(data_t *data, enum pipe pipe, igt_output_t *output)
-{
-	igt_plane_t *plane;
-
-	disable_and_verify_global_histogram(data, pipe);
-
-	for_each_plane_on_pipe(&data->display, pipe, plane)
-		igt_plane_set_fb(plane, NULL);
-	igt_output_set_pipe(output, PIPE_NONE);
-	igt_display_commit2(&data->display, COMMIT_ATOMIC);
-	igt_remove_fb(data->display.drm_fd, &data->fb[0]);
-	igt_remove_fb(data->display.drm_fd, &data->fb[1]);
-	igt_remove_fb(data->display.drm_fd, &data->fb[2]);
-	igt_remove_fb(data->display.drm_fd, &data->fb[3]);
-	igt_remove_fb(data->display.drm_fd, &data->fb[4]);
-}
-
-static drmModePropertyBlobRes *get_global_histogram_data(data_t *data, enum pipe pipe)
-{
-	uint64_t blob_id;
-
-	blob_id = igt_pipe_obj_get_prop(&data->display.pipes[pipe],
-					IGT_CRTC_GLOBAL_HISTOGRAM);
-	if (blob_id == 0)
-		return NULL;
-
-	return drmModeGetPropertyBlob(data->drm_fd, blob_id);
-}
-
-static void read_global_histogram(data_t *data, enum pipe pipe,
-				  drmModePropertyBlobRes **hist_blob_ptr)
-{
-	uint32_t *histogram_ptr;
-	drmModePropertyBlobRes *global_hist_blob = NULL;
-
-	igt_set_timeout(GLOBAL_HIST_DELAY, "Waiting to read global histogram blob.\n");
-	do {
-		global_hist_blob = get_global_histogram_data(data, pipe);
-	} while (!global_hist_blob);
-
-	igt_reset_timeout();
-
-	*hist_blob_ptr = global_hist_blob;
-	histogram_ptr = (uint32_t *)global_hist_blob->data;
-	for (int i = 0; i < global_hist_blob->length / sizeof(*histogram_ptr); i++)
-		igt_debug("Histogram[%d] = %d\n", i, *(histogram_ptr++));
-}
-
-#ifdef HAVE_LIBGHE
-static void set_pixel_factor(igt_pipe_t *pipe, uint32_t *dietfactor, size_t size)
-{
-	uint32_t i;
-
-	for (i = 0; i < size; i++) {
-		/* Displaying IET LUT */
-		igt_debug("Pixel Factor[%d] = %d\n", i, *(dietfactor + i));
-	}
-
-	igt_pipe_obj_replace_prop_blob(pipe, IGT_CRTC_GLOBAL_HIST_PIXEL_FACTOR,
-				       dietfactor, size);
-}
-
-static struct globalhist_args *algo_get_pixel_factor(drmModePropertyBlobRes *global_hist_blob,
-						     igt_output_t *output)
-{
-	struct globalhist_args *argsPtr =
-		(struct globalhist_args *)malloc(sizeof(struct globalhist_args));
-
-	drmModeModeInfo *mode;
-
-	mode = igt_output_get_mode(output);
-
-	memcpy(argsPtr->histogram, global_hist_blob->data, global_hist_blob->length);
-	argsPtr->resolution_x = mode->hdisplay;
-	argsPtr->resolution_y = mode->vdisplay;
-
-	igt_debug("Making call to global histogram algorithm.\n");
-	histogram_compute_generate_data_bin(argsPtr);
-
-	return argsPtr;
-}
-
-static void algo_image_enhancement_factor(data_t *data, enum pipe pipe,
-					  igt_output_t *output,
-					  drmModePropertyBlobRes *global_hist_blob)
-{
-	struct globalhist_args *args = algo_get_pixel_factor(global_hist_blob, output);
-
-	igt_assert(args);
-	igt_debug("Writing pixel factor blob.\n");
-
-	set_pixel_factor(&data->display.pipes[pipe], args->dietfactor,
-			 ARRAY_SIZE(args->dietfactor));
-	free(args);
-
-	igt_display_commit2(&data->display, COMMIT_ATOMIC);
-}
-#endif
-
-static void create_monochrome_fbs(data_t *data, drmModeModeInfo *mode)
-{
-	/* TODO: Extend the tests for different formats/modifiers. */
-	/* These frame buffers used to flip monochrome fbs to get histogram event. */
-	igt_assert(igt_create_color_pattern_fb(data->drm_fd, mode->hdisplay, mode->vdisplay,
-					       DRM_FORMAT_XRGB8888, DRM_FORMAT_MOD_LINEAR,
-					       0, 0, 0, &data->fb[0]));
-
-	igt_assert(igt_create_color_pattern_fb(data->drm_fd, mode->hdisplay, mode->vdisplay,
-					       DRM_FORMAT_XRGB8888, DRM_FORMAT_MOD_LINEAR,
-					       1, 1, 1, &data->fb[1]));
-}
-
-static void create_color_fbs(data_t *data, drmModeModeInfo *mode)
-{
-	/* TODO: Extend the tests for different formats/modifiers. */
-	/* These frame buffers used to flip color fbs to get histogram event. */
-	igt_assert(igt_create_color_pattern_fb(data->drm_fd, mode->hdisplay, mode->vdisplay,
-					       DRM_FORMAT_XRGB8888, DRM_FORMAT_MOD_LINEAR,
-					       0.5, 0, 0.5, &data->fb[0]));
-
-	igt_assert(igt_create_color_pattern_fb(data->drm_fd, mode->hdisplay, mode->vdisplay,
-					       DRM_FORMAT_XRGB8888, DRM_FORMAT_MOD_LINEAR,
-					       1, 0, 0, &data->fb[1]));
-
-	igt_assert(igt_create_color_pattern_fb(data->drm_fd, mode->hdisplay, mode->vdisplay,
-					       DRM_FORMAT_XRGB8888, DRM_FORMAT_MOD_LINEAR,
-					       0, 1, 0, &data->fb[2]));
-
-	igt_assert(igt_create_color_pattern_fb(data->drm_fd, mode->hdisplay, mode->vdisplay,
-					       DRM_FORMAT_XRGB8888, DRM_FORMAT_MOD_LINEAR,
-					       0, 0, 1, &data->fb[3]));
-
-	igt_assert(igt_create_color_pattern_fb(data->drm_fd, mode->hdisplay, mode->vdisplay,
-					       DRM_FORMAT_XRGB8888, DRM_FORMAT_MOD_LINEAR,
-					       1, 0, 1, &data->fb[4]));
-}
-
-static void flip_fb(data_t *data, enum pipe pipe, igt_output_t *output, struct igt_fb *fb)
-{
-	igt_plane_set_fb(igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY), fb);
-	igt_display_commit2(&data->display, COMMIT_ATOMIC);
-}
-
-static void prepare_pipe(data_t *data, enum pipe pipe, igt_output_t *output, bool color_fb)
-{
-	int i;
-	struct udev_monitor *mon = igt_watch_uevents();
-	drmModeModeInfo *mode = igt_output_get_mode(output);
-	bool event_detected = false;
-	int fb_count = color_fb ? 5 : 2;
-
-	if (color_fb)
-		create_color_fbs(data, mode);
-	else
-		create_monochrome_fbs(data, mode);
-
-	flip_fb(data, pipe, output, &data->fb[0]);
-	enable_and_verify_global_histogram(data, pipe);
-
-	igt_flush_uevents(mon);
-	for (i = 1; i <= FLIP_COUNT; i++) {
-		flip_fb(data, pipe, output, &data->fb[i % fb_count]);
-
-		/* Check for histogram event on every flip and break the loop if detected. */
-		if (igt_global_histogram_event_detected(mon, 0)) {
-			event_detected = true;
-			break;
-		}
-	}
-
-	igt_cleanup_uevents(mon);
-	igt_assert_f(event_detected, "Histogram event not generated.\n");
-}
-
-static void run_global_histogram_pipeline(data_t *data, enum pipe pipe, igt_output_t *output,
-					  bool color_fb, test_t test_pixel_factor)
-{
-	drmModePropertyBlobRes *global_hist_blob = NULL;
-
-	prepare_pipe(data, pipe, output, color_fb);
-
-	read_global_histogram(data, pipe, &global_hist_blob);
-
-	if (test_pixel_factor)
-		test_pixel_factor(data, pipe, output, global_hist_blob);
-
-	drmModeFreePropertyBlob(global_hist_blob);
-	cleanup_pipe(data, pipe, output);
-}
-
-static void run_tests_for_global_histogram(data_t *data, bool color_fb,
-					   test_t test_pixel_factor)
-{
-	enum pipe pipe;
-	igt_output_t *output;
-
-	for_each_connected_output(&data->display, output) {
-		for_each_pipe(&data->display, pipe) {
-			if (!igt_pipe_obj_has_prop(&data->display.pipes[pipe], IGT_CRTC_HISTOGRAM))
-				continue;
-
-			igt_display_reset(&data->display);
-
-			igt_output_set_pipe(output, pipe);
-			if (!intel_pipe_output_combo_valid(&data->display))
-				continue;
-
-			igt_dynamic_f("pipe-%s-%s", kmstest_pipe_name(pipe), igt_output_name(output))
-				run_global_histogram_pipeline(data, pipe, output, color_fb, test_pixel_factor);
-		}
-	}
-}
-
-static void run_algo_test(data_t *data, bool color_fb)
-{
-#ifdef HAVE_LIBGHE
-	run_tests_for_global_histogram(data, color_fb, algo_image_enhancement_factor);
-#else
-	igt_skip("Histogram algorithm library not found.\n");
-#endif
-}
-
-igt_main
-{
-	data_t data = {};
-
-	igt_fixture {
-		data.drm_fd = drm_open_driver_master(DRIVER_ANY);
-		kmstest_set_vt_graphics_mode();
-		igt_display_require(&data.display, data.drm_fd);
-		igt_display_require_output(&data.display);
-		igt_require(data.display.is_atomic);
-	}
-
-	igt_describe("Test to enable histogram, flip monochrome fbs, wait for histogram "
-		     "event and then read the histogram data.");
-	igt_subtest_with_dynamic("global-basic")
-		run_tests_for_global_histogram(&data, false, NULL);
-
-	igt_describe("Test to enable histogram, flip color fbs, wait for histogram event "
-		     "and then read the histogram data.");
-	igt_subtest_with_dynamic("global-color")
-		run_tests_for_global_histogram(&data, true, NULL);
-
-	igt_describe("Test to enable histogram, flip monochrome fbs, wait for histogram "
-		     "event and then read the histogram data and enhance pixels by multiplying "
-		     "by a pixel factor using algo.");
-	igt_subtest_with_dynamic("algo-basic")
-		run_algo_test(&data, false);
-
-	igt_describe("Test to enable histogram, flip color fbs, wait for histogram event "
-		     "and then read the histogram data and enhance pixels by multiplying "
-		     "by a pixel factor using algo.");
-	igt_subtest_with_dynamic("algo-color")
-		run_algo_test(&data, true);
-
-	igt_fixture {
-		igt_display_fini(&data.display);
-		drm_close_driver(data.drm_fd);
-	}
-}
diff --git a/tests/meson.build b/tests/meson.build
index 89bba6454..2724c7a9a 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -37,7 +37,6 @@ test_progs = [
 	'kms_getfb',
 	'kms_hdmi_inject',
 	'kms_hdr',
-	'kms_histogram',
 	'kms_invalid_mode',
 	'kms_lease',
 	'kms_multipipe_modeset',
@@ -381,7 +380,6 @@ extra_dependencies = {
 	'gem_eio': [ realtime ],
 	'gem_exec_balancer': [ lib_igt_perf ],
 	'gem_mmap_offset': [ libatomic ],
-	'kms_histogram': [ libghe ],
 	'i915_pm_freq_mult': [ lib_igt_perf ],
 	'i915_pm_rc6_residency': [ lib_igt_perf ],
 	'perf': [ lib_igt_i915_perf ],
-- 
2.47.0



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