[PATCH i-g-t] tests: remove kms_fbc_crc

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This was the predecessor test to kms_frontbuffer_tracking, which not
just tests fbc, and also in a much more through-out fashion.

Both tests authored by Paulo, but looking at git history there's a
clear switch with the introduction of kms_frontbuffer_tracking. After
that only maintenance commits to kms_fbc_crc. Not point having
redundant tests, so lets remove the old one.

This will cut a bit more than 3 minutes of test-time from kbl-shard.

Cc: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
---
 tests/Makefile.sources |   1 -
 tests/kms_fbc_crc.c    | 580 -------------------------------------------------
 tests/meson.build      |   1 -
 3 files changed, 582 deletions(-)
 delete mode 100644 tests/kms_fbc_crc.c

diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index 9c9fb316fc71..2313c12b508c 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -182,7 +182,6 @@ TESTS_progs = \
 	kms_cursor_crc \
 	kms_cursor_legacy \
 	kms_draw_crc \
-	kms_fbc_crc \
 	kms_fbcon_fbt \
 	kms_fence_pin_leak \
 	kms_flip \
diff --git a/tests/kms_fbc_crc.c b/tests/kms_fbc_crc.c
deleted file mode 100644
index 06234566c232..000000000000
--- a/tests/kms_fbc_crc.c
+++ /dev/null
@@ -1,580 +0,0 @@
-/*
- * Copyright © 2013 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- *
- */
-
-#include "igt.h"
-#include <errno.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <string.h>
-
-
-IGT_TEST_DESCRIPTION(
-   "Performs various write operations to the scanout buffer while FBC is "
-   "enabled. CRC checks will be used to make sure the modifications to scanout "
-   "buffer are detected.");
-
-enum test_mode {
-	TEST_PAGE_FLIP,
-	TEST_MMAP_CPU,
-	TEST_MMAP_GTT,
-	TEST_BLT,
-	TEST_RENDER,
-	TEST_CONTEXT,
-	TEST_PAGE_FLIP_AND_MMAP_CPU,
-	TEST_PAGE_FLIP_AND_MMAP_GTT,
-	TEST_PAGE_FLIP_AND_BLT,
-	TEST_PAGE_FLIP_AND_RENDER,
-	TEST_PAGE_FLIP_AND_CONTEXT,
-};
-
-typedef struct {
-	int drm_fd;
-	igt_crc_t ref_crc[4];
-	igt_pipe_crc_t *pipe_crc;
-	drm_intel_bufmgr *bufmgr;
-	drm_intel_context *ctx[2];
-	uint32_t devid;
-	igt_display_t display;
-	igt_output_t *output;
-	enum pipe pipe;
-	igt_plane_t *primary;
-	struct igt_fb fb[2];
-} data_t;
-
-static const char *test_mode_str(enum test_mode mode)
-{
-	static const char * const test_modes[] = {
-		[TEST_PAGE_FLIP] = "page_flip",
-		[TEST_MMAP_CPU] = "mmap_cpu",
-		[TEST_MMAP_GTT] = "mmap_gtt",
-		[TEST_BLT] = "blt",
-		[TEST_RENDER] = "render",
-		[TEST_CONTEXT] = "context",
-		[TEST_PAGE_FLIP_AND_MMAP_CPU] = "page_flip_and_mmap_cpu",
-		[TEST_PAGE_FLIP_AND_MMAP_GTT] = "page_flip_and_mmap_gtt",
-		[TEST_PAGE_FLIP_AND_BLT] = "page_flip_and_blt",
-		[TEST_PAGE_FLIP_AND_RENDER] = "page_flip_and_render",
-		[TEST_PAGE_FLIP_AND_CONTEXT] = "page_flip_and_context",
-	};
-
-	return test_modes[mode];
-}
-
-static void fill_blt(data_t *data,
-		     uint32_t handle,
-		     struct igt_fb *fb,
-		     unsigned char color)
-{
-	drm_intel_bo *dst = gem_handle_to_libdrm_bo(data->bufmgr,
-						    data->drm_fd,
-						    "", handle);
-	struct intel_batchbuffer *batch;
-	unsigned flags;
-	int pitch;
-	uint32_t pixel = color | (color << 8) | (color << 16) | (color << 24);
-
-	batch = intel_batchbuffer_alloc(data->bufmgr, data->devid);
-	igt_assert(batch);
-
-	pitch = fb->stride;
-	flags = XY_COLOR_BLT_WRITE_ALPHA |
-		XY_COLOR_BLT_WRITE_RGB;
-	if (fb->tiling && batch->gen >= 4) {
-		flags |= XY_COLOR_BLT_TILED;
-		pitch /= 4;
-	}
-
-	COLOR_BLIT_COPY_BATCH_START(flags);
-	OUT_BATCH(3 << 24 | 0xf0 << 16 | pitch);
-	OUT_BATCH(0);
-	OUT_BATCH(1 << 16 | 1);
-	OUT_RELOC_FENCED(dst, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 0);
-	OUT_BATCH(pixel);
-	ADVANCE_BATCH();
-
-	intel_batchbuffer_flush(batch);
-	intel_batchbuffer_free(batch);
-
-	gem_bo_busy(data->drm_fd, handle);
-}
-
-static void scratch_buf_init(struct igt_buf *buf, drm_intel_bo *bo)
-{
-	buf->bo = bo;
-	buf->stride = 4096;
-	buf->tiling = I915_TILING_X;
-	buf->size = 4096;
-}
-
-static void exec_nop(data_t *data, uint32_t handle, drm_intel_context *context)
-{
-	drm_intel_bo *dst;
-	struct intel_batchbuffer *batch;
-
-	dst = gem_handle_to_libdrm_bo(data->bufmgr, data->drm_fd, "", handle);
-	igt_assert(dst);
-
-	batch = intel_batchbuffer_alloc(data->bufmgr, data->devid);
-	igt_assert(batch);
-
-	/* add the reloc to make sure the kernel will think we write to dst */
-	BEGIN_BATCH(4, 1);
-	OUT_BATCH(MI_BATCH_BUFFER_END);
-	OUT_BATCH(MI_NOOP);
-	OUT_RELOC(dst, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 0);
-	OUT_BATCH(MI_NOOP);
-	ADVANCE_BATCH();
-
-	intel_batchbuffer_flush_with_context(batch, context);
-	intel_batchbuffer_free(batch);
-}
-
-static void fill_render(data_t *data, uint32_t handle,
-			drm_intel_context *context, unsigned char color)
-{
-	drm_intel_bo *src, *dst;
-	struct intel_batchbuffer *batch;
-	struct igt_buf src_buf, dst_buf;
-	const uint8_t buf[4] = { color, color, color, color };
-	igt_render_copyfunc_t rendercopy = igt_get_render_copyfunc(data->devid);
-
-	igt_skip_on(!rendercopy);
-
-	dst = gem_handle_to_libdrm_bo(data->bufmgr, data->drm_fd, "", handle);
-	igt_assert(dst);
-
-	src = drm_intel_bo_alloc(data->bufmgr, "", 4096, 4096);
-	igt_assert(src);
-
-	gem_write(data->drm_fd, src->handle, 0, buf, 4);
-
-	scratch_buf_init(&src_buf, src);
-	scratch_buf_init(&dst_buf, dst);
-
-	batch = intel_batchbuffer_alloc(data->bufmgr, data->devid);
-	igt_assert(batch);
-
-	rendercopy(batch, context,
-		   &src_buf, 0, 0, 1, 1,
-		   &dst_buf, 0, 0);
-
-	intel_batchbuffer_free(batch);
-
-	gem_bo_busy(data->drm_fd, handle);
-}
-
-static void fill_mmap_cpu(data_t *data, uint32_t handle, unsigned char color)
-{
-	void *ptr;
-
-	ptr = gem_mmap__cpu(data->drm_fd, handle, 0, 4096, PROT_WRITE);
-	gem_set_domain(data->drm_fd, handle, I915_GEM_DOMAIN_CPU,
-		       I915_GEM_DOMAIN_CPU);
-	memset(ptr, color, 4);
-	munmap(ptr, 4096);
-	gem_sw_finish(data->drm_fd, handle);
-}
-
-static void fill_mmap_gtt(data_t *data, uint32_t handle, unsigned char color)
-{
-	void *ptr;
-
-	ptr = gem_mmap__gtt(data->drm_fd, handle, 4096, PROT_WRITE);
-	gem_set_domain(data->drm_fd, handle, I915_GEM_DOMAIN_GTT,
-		       I915_GEM_DOMAIN_GTT);
-	memset(ptr, color, 4);
-	munmap(ptr, 4096);
-}
-
-static bool fbc_enabled(data_t *data)
-{
-	char str[128] = {};
-
-	igt_debugfs_read(data->drm_fd, "i915_fbc_status", str);
-	return strstr(str, "FBC enabled") != NULL;
-}
-
-static bool wait_for_fbc_enabled(data_t *data)
-{
-	return igt_wait(fbc_enabled(data), 3000, 30);
-}
-
-static void check_crc(data_t *data, enum test_mode mode)
-{
-	igt_pipe_crc_t *pipe_crc = data->pipe_crc;
-	igt_crc_t crc, *ref_crc;
-
-	switch (mode) {
-	case TEST_PAGE_FLIP:
-		ref_crc = &data->ref_crc[1];
-		break;
-	case TEST_MMAP_CPU:
-	case TEST_MMAP_GTT:
-	case TEST_BLT:
-	case TEST_RENDER:
-	case TEST_CONTEXT:
-		ref_crc = &data->ref_crc[2];
-		break;
-	case TEST_PAGE_FLIP_AND_MMAP_CPU:
-	case TEST_PAGE_FLIP_AND_MMAP_GTT:
-	case TEST_PAGE_FLIP_AND_BLT:
-	case TEST_PAGE_FLIP_AND_RENDER:
-	case TEST_PAGE_FLIP_AND_CONTEXT:
-		ref_crc = &data->ref_crc[3];
-		break;
-	default:
-		igt_assert(false);
-	}
-
-	igt_pipe_crc_collect_crc(pipe_crc, &crc);
-	igt_assert_crc_equal(&crc, ref_crc);
-}
-
-static void test_crc(data_t *data, enum test_mode mode)
-{
-	uint32_t crtc_id = data->output->config.crtc->crtc_id;
-	uint32_t handle = data->fb[0].gem_handle;
-	drm_intel_context *context = NULL;
-
-	igt_assert(fbc_enabled(data));
-
-	if (mode == TEST_PAGE_FLIP || mode >= TEST_PAGE_FLIP_AND_MMAP_CPU) {
-		handle = data->fb[1].gem_handle;
-		igt_assert(drmModePageFlip(data->drm_fd, crtc_id,
-					   data->fb[1].fb_id, 0, NULL) == 0);
-
-		if (mode != TEST_PAGE_FLIP)
-			igt_assert(wait_for_fbc_enabled(data));
-	}
-
-	switch (mode) {
-	case TEST_PAGE_FLIP:
-		break;
-	case TEST_MMAP_CPU:
-	case TEST_PAGE_FLIP_AND_MMAP_CPU:
-		fill_mmap_cpu(data, handle, 0xff);
-		break;
-	case TEST_MMAP_GTT:
-	case TEST_PAGE_FLIP_AND_MMAP_GTT:
-		fill_mmap_gtt(data, handle, 0xff);
-		break;
-	case TEST_BLT:
-	case TEST_PAGE_FLIP_AND_BLT:
-		fill_blt(data, handle, data->fb, ~0);
-		break;
-	case TEST_CONTEXT:
-	case TEST_PAGE_FLIP_AND_CONTEXT:
-		context = data->ctx[1];
-	case TEST_RENDER:
-	case TEST_PAGE_FLIP_AND_RENDER:
-		fill_render(data, handle, context, 0xff);
-		break;
-	}
-
-	/*
-	 * Make sure we're looking at new data (two vblanks
-	 * to leave some leeway for the kernel if we ever do
-	 * some kind of delayed FBC disable for GTT mmaps.
-	 */
-	igt_wait_for_vblank(data->drm_fd, data->pipe);
-	igt_wait_for_vblank(data->drm_fd, data->pipe);
-
-	check_crc(data, mode);
-
-	/*
-	 * Allow time for FBC to kick in again if it
-	 * got disabled during dirtyfb or page flip.
-	 */
-	igt_assert(wait_for_fbc_enabled(data));
-
-	check_crc(data, mode);
-}
-
-static void prepare_crtc(data_t *data)
-{
-	igt_output_t *output = data->output;
-
-	igt_output_set_pipe(output, data->pipe);
-}
-
-static void create_fbs(data_t *data, uint64_t tiling, struct igt_fb *fbs)
-{
-	int rc;
-	drmModeModeInfo *mode = igt_output_get_mode(data->output);
-
-	rc = igt_create_color_fb(data->drm_fd, mode->hdisplay, mode->vdisplay,
-				 DRM_FORMAT_XRGB8888, tiling,
-				 0.0, 0.0, 0.0, &fbs[0]);
-	igt_assert(rc);
-	rc = igt_create_color_fb(data->drm_fd, mode->hdisplay, mode->vdisplay,
-				 DRM_FORMAT_XRGB8888, tiling,
-				 0.1, 0.1, 0.1, &fbs[1]);
-	igt_assert(rc);
-}
-
-/* Since we want to be really safe that the CRCs are actually what we really
- * want, use untiled FBs, so FBC won't happen to disrupt things. Also do the
- * drawing before setting the modes, just to be sure. */
-static void get_ref_crcs(data_t *data)
-{
-	igt_display_t *display = &data->display;
-	struct igt_fb fbs[4];
-	int i;
-
-	create_fbs(data, LOCAL_DRM_FORMAT_MOD_NONE, &fbs[0]);
-	create_fbs(data, LOCAL_DRM_FORMAT_MOD_NONE, &fbs[2]);
-
-	fill_mmap_gtt(data, fbs[2].gem_handle, 0xff);
-	fill_mmap_gtt(data, fbs[3].gem_handle, 0xff);
-
-	for (i = 0; i < 4; i++) {
-		igt_plane_set_fb(data->primary, &fbs[i]);
-		igt_display_commit(display);
-		igt_wait_for_vblank(data->drm_fd, data->pipe);
-		igt_assert(!fbc_enabled(data));
-		igt_pipe_crc_collect_crc(data->pipe_crc, &data->ref_crc[i]);
-		igt_assert(!fbc_enabled(data));
-	}
-
-	igt_plane_set_fb(data->primary, &data->fb[1]);
-	igt_display_commit(display);
-
-	for (i = 0; i < 4; i++)
-		igt_remove_fb(data->drm_fd, &fbs[i]);
-}
-
-static bool prepare_test(data_t *data, enum test_mode test_mode, uint64_t tiling)
-{
-	igt_display_t *display = &data->display;
-	igt_output_t *output = data->output;
-	igt_pipe_crc_t *pipe_crc;
-
-	data->primary = igt_output_get_plane_type(data->output, DRM_PLANE_TYPE_PRIMARY);
-
-	create_fbs(data, tiling, data->fb);
-
-	igt_pipe_crc_free(data->pipe_crc);
-	data->pipe_crc = NULL;
-	pipe_crc = igt_pipe_crc_new(data->drm_fd, data->pipe,
-				    INTEL_PIPE_CRC_SOURCE_AUTO);
-	data->pipe_crc = pipe_crc;
-
-	get_ref_crcs(data);
-
-	/* scanout = fb[1] */
-	igt_plane_set_fb(data->primary, &data->fb[1]);
-	igt_display_commit(display);
-
-	if (!wait_for_fbc_enabled(data)) {
-		igt_info("FBC not enabled\n");
-
-		igt_plane_set_fb(data->primary, NULL);
-		igt_output_set_pipe(output, PIPE_ANY);
-		igt_display_commit(display);
-
-		igt_remove_fb(data->drm_fd, &data->fb[0]);
-		igt_remove_fb(data->drm_fd, &data->fb[1]);
-		return false;
-	}
-
-	if (test_mode == TEST_CONTEXT || test_mode == TEST_PAGE_FLIP_AND_CONTEXT) {
-		data->ctx[0] = drm_intel_gem_context_create(data->bufmgr);
-		igt_assert(data->ctx[0]);
-		data->ctx[1] = drm_intel_gem_context_create(data->bufmgr);
-		igt_assert(data->ctx[1]);
-
-		/*
-		 * Disable FBC RT address for both contexts
-		 * (by "rendering" to a non-scanout buffer).
-		 */
-		exec_nop(data, data->fb[0].gem_handle, data->ctx[1]);
-		exec_nop(data, data->fb[0].gem_handle, data->ctx[0]);
-		exec_nop(data, data->fb[0].gem_handle, data->ctx[1]);
-		exec_nop(data, data->fb[0].gem_handle, data->ctx[0]);
-	}
-
-	/* scanout = fb[0] */
-	igt_plane_set_fb(data->primary, &data->fb[0]);
-	igt_display_commit(display);
-
-	igt_assert(wait_for_fbc_enabled(data));
-
-	if (test_mode == TEST_CONTEXT || test_mode == TEST_PAGE_FLIP_AND_CONTEXT) {
-		/*
-		 * make ctx[0] FBC RT address point to fb[0], ctx[1]
-		 * FBC RT address is left as disabled.
-		 */
-		exec_nop(data, data->fb[0].gem_handle, data->ctx[0]);
-		igt_assert(wait_for_fbc_enabled(data));
-	}
-
-	igt_wait_for_vblank(data->drm_fd, data->pipe);
-
-	return true;
-}
-
-static void finish_crtc(data_t *data, enum test_mode mode)
-{
-	igt_pipe_crc_free(data->pipe_crc);
-	data->pipe_crc = NULL;
-
-	if (mode == TEST_CONTEXT || mode == TEST_PAGE_FLIP_AND_CONTEXT) {
-		drm_intel_gem_context_destroy(data->ctx[0]);
-		drm_intel_gem_context_destroy(data->ctx[1]);
-	}
-
-	igt_plane_set_fb(data->primary, NULL);
-	igt_output_set_pipe(data->output, PIPE_ANY);
-	igt_display_commit(&data->display);
-
-	igt_remove_fb(data->drm_fd, &data->fb[0]);
-	igt_remove_fb(data->drm_fd, &data->fb[1]);
-}
-
-static void reset_display(data_t *data)
-{
-	igt_display_t *display = &data->display;
-	enum pipe pipe_id;
-
-	for_each_pipe(display, pipe_id) {
-        igt_pipe_t *pipe = &display->pipes[pipe_id];
-		igt_plane_t *plane = igt_pipe_get_plane_type(pipe, DRM_PLANE_TYPE_PRIMARY);
-
-		igt_plane_set_fb(plane, NULL);
-	}
-
-	for_each_connected_output(display, data->output)
-		igt_output_set_pipe(data->output, PIPE_ANY);
-}
-
-static void run_test(data_t *data, enum test_mode mode)
-{
-	igt_display_t *display = &data->display;
-	int valid_tests = 0, i;
-	uint64_t tiling_methods[] = {
-		LOCAL_I915_FORMAT_MOD_X_TILED, LOCAL_I915_FORMAT_MOD_Y_TILED,
-	};
-
-	if (mode == TEST_CONTEXT || mode == TEST_PAGE_FLIP_AND_CONTEXT) {
-		drm_intel_context *ctx = drm_intel_gem_context_create(data->bufmgr);
-		igt_require(ctx);
-		drm_intel_gem_context_destroy(ctx);
-	}
-
-	reset_display(data);
-
-	for (i = 0; i < ARRAY_SIZE(tiling_methods); i++) {
-		uint64_t tiling = tiling_methods[i];
-
-		if (intel_gen(data->devid) < 9 &&
-		    tiling == LOCAL_I915_FORMAT_MOD_Y_TILED) {
-			igt_info("%s y-tiled: SKIPPED\n", igt_subtest_name());
-			continue;
-		}
-
-		for_each_pipe_with_valid_output(display,
-						data->pipe, data->output) {
-			const char *tiling_name =
-				tiling == LOCAL_I915_FORMAT_MOD_Y_TILED ?
-					"y" : "x";
-
-			prepare_crtc(data);
-
-			igt_info("Beginning %s on pipe %s, connector "
-				 "%s, %s-tiled\n",
-				 igt_subtest_name(),
-				 kmstest_pipe_name(data->pipe),
-				 igt_output_name(data->output),
-				 tiling_name);
-
-			if (!prepare_test(data, mode, tiling)) {
-				igt_info("%s on pipe %s, connector "
-					 "%s, %s-tiled: SKIPPED\n",
-					 igt_subtest_name(),
-					 kmstest_pipe_name(data->pipe),
-					 igt_output_name(data->output),
-					 tiling_name);
-				continue;
-			}
-
-			valid_tests++;
-
-			test_crc(data, mode);
-
-			igt_info("%s on pipe %s, connector %s,"
-				 "%s-tiled: PASSED\n",
-				 igt_subtest_name(),
-				 kmstest_pipe_name(data->pipe),
-				 igt_output_name(data->output),
-				 tiling_name);
-
-			finish_crtc(data, mode);
-		}
-	}
-
-	igt_require_f(valid_tests, "no valid crtc/connector combinations found\n");
-}
-
-igt_main
-{
-	data_t data = {};
-	enum test_mode mode;
-
-	igt_skip_on_simulation();
-
-	igt_fixture {
-		char buf[128];
-
-		data.drm_fd = drm_open_driver_master(DRIVER_INTEL);
-		kmstest_set_vt_graphics_mode();
-
-		data.devid = intel_get_drm_devid(data.drm_fd);
-
-		igt_require_pipe_crc(data.drm_fd);
-
-		igt_debugfs_read(data.drm_fd, "i915_fbc_status", buf);
-		igt_require_f(!strstr(buf, "unsupported on this chipset"),
-			      "FBC not supported\n");
-
-		if (intel_gen(data.devid) >= 6)
-			igt_set_module_param_int("enable_fbc", 1);
-
-		data.bufmgr = drm_intel_bufmgr_gem_init(data.drm_fd, 4096);
-		igt_assert(data.bufmgr);
-		drm_intel_bufmgr_gem_enable_reuse(data.bufmgr);
-
-		igt_display_init(&data.display, data.drm_fd);
-	}
-
-	for (mode = TEST_PAGE_FLIP; mode <= TEST_PAGE_FLIP_AND_CONTEXT; mode++) {
-		igt_subtest_f("%s", test_mode_str(mode)) {
-			run_test(&data, mode);
-		}
-	}
-
-	igt_fixture {
-		drm_intel_bufmgr_destroy(data.bufmgr);
-		igt_display_fini(&data.display);
-	}
-}
diff --git a/tests/meson.build b/tests/meson.build
index 835adc007e95..c3d5372f78ac 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -162,7 +162,6 @@ test_progs = [
 	'kms_cursor_crc',
 	'kms_cursor_legacy',
 	'kms_draw_crc',
-	'kms_fbc_crc',
 	'kms_fbcon_fbt',
 	'kms_fence_pin_leak',
 	'kms_flip',
-- 
2.14.1

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