[PATCH i-g-t] tests/kms_color:Color i-g-t

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From: Dhanya <dhanya.p.r@xxxxxxxxx>

	This patch will verify color correction capability of a display driver.
	Gamma/CSC/De-gamma for SKL/BXT supported.

Signed-off-by: Dhanya <dhanya.p.r@xxxxxxxxx>
---
 tests/.gitignore       |    1 +
 tests/Makefile.sources |    1 +
 tests/kms_color.c      | 1039 ++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 1041 insertions(+)
 create mode 100644 tests/kms_color.c

diff --git a/tests/.gitignore b/tests/.gitignore
index 7f20f2b..6fc4782 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -130,6 +130,7 @@ gen7_forcewake_mt
 kms_3d
 kms_addfb_basic
 kms_atomic
+kms_color
 kms_crtc_background_color
 kms_cursor_crc
 kms_draw_crc
diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index d594038..f2af648 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -68,6 +68,7 @@ TESTS_progs_M = \
 	gem_write_read_ring_switch \
 	kms_addfb_basic \
 	kms_atomic \
+	kms_color \
 	kms_cursor_crc \
 	kms_draw_crc \
 	kms_fbc_crc \
diff --git a/tests/kms_color.c b/tests/kms_color.c
new file mode 100644
index 0000000..b1b64e7
--- /dev/null
+++ b/tests/kms_color.c
@@ -0,0 +1,1039 @@
+/*
+ * Copyright © 2015 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.
+ *
+ * Authors:
+ *   Dhanya Pillai <dhanya.p.r@xxxxxxxxx>
+ */
+
+#include <sys/ioctl.h>
+#include <linux/types.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <math.h>
+#include "drmtest.h"
+#include "drm.h"
+#include "igt_debugfs.h"
+#include "igt_kms.h"
+#include "igt_core.h"
+#include "intel_io.h"
+#include "intel_chipset.h"
+#include "igt_aux.h"
+
+
+IGT_TEST_DESCRIPTION("Test Color Features at Pipe level");
+/*
+
+This tool tests the following color features:
+	CTM, GAMMA(8/10/12/split/legacy) and De-gamma.
+Few negative test cases are also included
+
+Tests willl enable one primary and one sprite plane and apply
+the specific color feature and do the verification by CRC checks.
+*/
+
+#define CSC_MAX_VALS    9
+#define BDW_SPLITGAMMA_MAX_VALS                512
+#define BDW_8BIT_GAMMA_MAX_VALS                256
+#define BDW_10BIT_GAMMA_MAX_VALS               1024
+#define BDW_12BIT_GAMMA_MAX_VALS               513
+#define BDW_MAX_GAMMA                         ((1 << 24) - 1)
+#define BDW_MIN_GAMMA				0
+
+#define RED_FB 0
+#define GREEN_FB 1
+#define BLUE_FB 2
+
+#ifndef drm_r32g32b32
+struct drm_r32g32b32 {
+	__u32 r32;
+	__u32 g32;
+	__u32 b32;
+	__u32 reserved;
+};
+#endif
+#ifndef drm_palette
+struct drm_palette {
+	struct drm_r32g32b32 lut[0];
+};
+#endif
+#ifndef drm_ctm
+	struct drm_ctm {
+	__s64 ctm_coeff[9];
+};
+#endif
+#ifndef drm_palette_caps
+struct drm_palette_caps {
+	__u32 version;
+	__u32 reserved;
+	__u32 num_samples_before_ctm;
+	__u32 num_samples_after_ctm;
+};
+#endif
+
+enum ctm_color {
+	RED,
+	GREEN,
+	BLUE,
+	REVERSE,
+	NEGATIVE,
+	FRACTION
+};
+
+enum blob {
+	INVALID_BLOB_ID,
+	INVALID_BLOB_DATA,
+	INVALID_BLOB_LENGTH,
+	INVALID_BLOB_ID_SMALL,
+	INVALID_BLOB_NULL
+};
+
+enum color_property {
+	ctm_property,
+	legacy_gamma,
+	gamma_property_8bit,
+	gamma_property_10bit,
+	gamma_property_12bit,
+	gamma_property_split
+};
+static const float ctm_red[9] = {1, 1, 1, 0, 0, 0, 0, 0, 0};
+static const float ctm_green[9] = {0, 0, 0, 1, 1, 1, 0, 0, 0};
+static const float ctm_blue[9] = {0, 0, 0, 0, 0, 0, 1, 1, 1};
+static const float ctm_identity[9] = {1, 0, 0, 0, 1, 0, 0, 0, 1};
+static const float ctm_reverse[9] = {0, 0, 1, 0, 1, 0, 1, 0, 0};
+static const float ctm_negative[9] = {-1, -1, -1, -1, -1, -1, -1, -1, -1};
+static const float ctm_fraction[9] = {1234567.7652, 0.12334, 0.9898989, 0.45454545, 0.12121212, 0.232323, 3.98768, 0.00000, 1.22345};
+
+
+struct framebuffer_color {
+	int red;
+	int green;
+	int blue;
+};
+struct framebuffer_color fb_color = { 0, 0, 0};
+
+
+struct data_t {
+	int fb_initial;
+	int drm_fd;
+	int gen;
+	int w, h;
+	igt_display_t display;
+	struct igt_fb fb_prep;
+	struct igt_fb fb, fb1;
+	igt_pipe_crc_t *pipe_crc;
+	enum pipe pipe;
+
+};
+
+
+static int create_blob(int fd, uint64_t *data, int length)
+{
+	struct drm_mode_create_blob blob;
+	int ret = -1;
+
+	blob.data = (uint64_t)data;
+	blob.length = length;
+	blob.blob_id = -1;
+	ret = ioctl(fd, DRM_IOCTL_MODE_CREATEPROPBLOB, &blob);
+	if (!ret)
+		return blob.blob_id;
+	igt_fail(IGT_EXIT_FAILURE);
+	return ret;
+}
+
+static void prepare_crtc(struct data_t *data, igt_output_t *output,
+			 enum pipe pipe1, igt_plane_t *plane, drmModeModeInfo *mode,
+			 enum igt_commit_style s)
+{
+	igt_display_t *display = &data->display;
+
+	igt_output_set_pipe(output, pipe1);
+	igt_pipe_crc_free(data->pipe_crc);
+	data->pipe_crc = igt_pipe_crc_new(pipe1, INTEL_PIPE_CRC_SOURCE_AUTO);
+	/* before allocating, free if any older fb */
+	if (data->fb_initial) {
+		igt_remove_fb(data->drm_fd, &data->fb_prep);
+		data->fb_initial = 0;
+	}
+
+	/* allocate fb for plane 1 */
+	data->fb_initial = igt_create_color_fb(data->drm_fd,
+					       mode->hdisplay, mode->vdisplay,
+					       DRM_FORMAT_XRGB8888,
+					       LOCAL_I915_FORMAT_MOD_X_TILED, /* tiled */
+					       fb_color.red, fb_color.green, fb_color.blue,
+					       &data->fb_prep);
+	igt_assert(data->fb_initial);
+
+	igt_plane_set_fb(plane, &data->fb_prep);
+
+	igt_display_commit2(display, s);
+}
+
+static void cleanup_fb(struct data_t *data)
+{
+
+	if (data->fb_initial) {
+		igt_remove_fb(data->drm_fd, &data->fb_prep);
+		data->fb_initial = 0;
+	}
+	if (data->fb.fb_id)
+		igt_remove_fb(data->drm_fd, &data->fb);
+
+}
+
+static void cleanup_crtc(struct data_t *data, igt_output_t *output,
+			 igt_plane_t *plane)
+{
+	igt_display_t *display = &data->display;
+
+	if (!plane->is_primary) {
+		igt_plane_t *primary;
+
+		primary = igt_output_get_plane(output, IGT_PLANE_PRIMARY);
+		igt_plane_set_fb(primary, NULL);
+	}
+	igt_plane_set_fb(plane, NULL);
+	igt_output_set_pipe(output, PIPE_ANY);
+	igt_display_commit2(display, COMMIT_UNIVERSAL);
+
+}
+
+static int get_color_property(int drm_fd, int id, int object, const char *prop_name)
+
+{
+	int i = 0, ret = 0;
+	int blob_id = -1;
+	drmModeObjectPropertiesPtr props = NULL;
+	igt_fail_on_f(id < 0 || ((object != DRM_MODE_OBJECT_CRTC) &&
+		      (object != DRM_MODE_OBJECT_PLANE)), "Invalid input to get color property %d", id);
+
+	props = drmModeObjectGetProperties(drm_fd, id, object);
+	igt_fail_on_f(!props, "\nNo property for object id=%d\n", id);
+	for (i = 0; i < props->count_props; i++) {
+		drmModePropertyPtr prop = drmModeGetProperty(drm_fd,
+							     props->props[i]);
+		if (strcmp(prop->name, prop_name) == 0) {
+			blob_id = props->prop_values[i];
+
+			break;
+		}
+		drmModeFreeProperty(prop);
+	}
+	ret = blob_id;
+	drmModeFreeObjectProperties(props);
+	igt_fail_on_f(i == props->count_props, "%s No such property\n", prop_name);
+	return ret;
+}
+
+
+static int set_color_property(int drm_fd, int id, int object, const char *prop_name, int blob_id)
+{
+	int i = 0, res = -1;
+
+	drmModeObjectPropertiesPtr props = NULL;
+	igt_fail_on_f(id < 0 || ((object != DRM_MODE_OBJECT_CRTC) &&
+			(object != DRM_MODE_OBJECT_PLANE)), "Invalid input to get color property %d", id);
+
+
+	props = drmModeObjectGetProperties(drm_fd, id, object);
+	igt_fail_on_f(!props, "\nNo property for object id=%d\n", id);
+	for (i = 0; i < props->count_props; i++) {
+		drmModePropertyPtr prop = drmModeGetProperty(drm_fd,
+							     props->props[i]);
+		if (strcmp(prop->name, prop_name) == 0) {
+			res = drmModeObjectSetProperty(drm_fd, id, object,
+						       (uint32_t)prop->prop_id, blob_id);
+
+			if (res) {
+				drmModeFreeProperty(prop);
+			} else {
+				drmModeFreeProperty(prop);
+				break;
+			}
+		}
+
+	}
+	drmModeFreeObjectProperties(props);
+	igt_fail_on_f(i == props->count_props, "%s No such property\n", prop_name);
+	return res;
+}
+
+static int64_t  convertFloatToBinary(double input)
+{
+
+	int integer_part, count = 0;
+	uint32_t temp_ip, frac_val = 0x00000000;
+	uint64_t integer_val = 0x00000000;
+	int64_t  value = 0x0000000000000000;
+	float fractional_part, ip;
+	integer_part = (int)input;
+	fractional_part = input - integer_part;
+	while (fractional_part != 0.000000) {
+		ip = fractional_part * 16;
+		temp_ip = (int)(fractional_part * 16);
+		frac_val = frac_val | (temp_ip << (28 - count * 4));
+		count++;
+		fractional_part = ip - temp_ip;
+	}
+	integer_val = integer_part;
+	value = value | ((integer_val) * ((int64_t)1L << 32));
+	value = value | frac_val;
+	return value;
+
+
+}
+
+static void write_gamma_lut(uint32_t num_samples, struct drm_r32g32b32 *gamma_ptr, int unit_gamma)
+{
+	unsigned short Red, Green, Blue;
+	uint32_t r32, b32, g32;
+	uint64_t i;
+
+	for (i = 0; i < num_samples; i++) {
+		if (unit_gamma == 0) {
+			Blue = BDW_MAX_GAMMA;
+			Green = BDW_MAX_GAMMA;
+			Red = BDW_MAX_GAMMA;
+		} else {
+			Blue = BDW_MIN_GAMMA;
+			Green = BDW_MIN_GAMMA;
+			Red = BDW_MIN_GAMMA;
+		}
+		r32 = Red;
+		g32 = Green;
+		b32 = Blue;
+		r32 <<= 8;
+		g32 <<= 8;
+		b32 <<= 8;
+		gamma_ptr[i].r32 = r32;
+		gamma_ptr[i].g32 = g32;
+		gamma_ptr[i].b32 = b32;
+	}
+}
+
+static uint64_t get_blob(int fd, int blob_id, int length)
+{
+	struct drm_mode_get_blob blob;
+	int ret = 0;
+
+	blob.blob_id = blob_id;
+	blob.length = length;
+	blob.data =  (uint64_t)malloc(blob.length);
+	ret = ioctl(fd, DRM_IOCTL_MODE_GETPROPBLOB, &blob);
+
+	if (ret)
+		igt_info("GET BLOB Failed\n");
+
+	return blob.data;
+}
+
+static void enable_plane(struct data_t *data, igt_display_t *display, igt_output_t *output, int pipe1)
+{
+	enum igt_commit_style commit;
+	enum pipe pipe2;
+	int width, height;
+	uint32_t pixelformat = DRM_FORMAT_XRGB8888;
+
+	commit = COMMIT_UNIVERSAL;
+	for_each_connected_output(display, output) {
+		drmModeModeInfo *mode;
+		igt_plane_t *plane;
+		pipe2 = output->config.pipe;
+
+		if (pipe2 != pipe1)
+			break;
+		igt_output_set_pipe(output, pipe2);
+		mode = igt_output_get_mode(output);
+		/*Draw the initial primary plane*/
+		plane = igt_output_get_plane(output, IGT_PLANE_PRIMARY);
+
+		prepare_crtc(data, output, pipe2, plane, mode, commit);
+		/*Random Size  Buffer Creation */
+		width = 600;
+		height = 600;
+
+		plane = igt_output_get_plane(output, IGT_PLANE_2);
+		igt_create_color_fb(data->drm_fd,
+					    width, height,
+					    pixelformat,
+					    LOCAL_DRM_FORMAT_MOD_NONE,
+					    fb_color.red, fb_color.green, fb_color.blue,
+					    &data->fb);
+		igt_plane_set_position(plane, 100, 100);
+
+		igt_plane_set_fb(plane, &data->fb);
+		igt_display_commit2(display, commit);
+	}
+
+}
+
+static void apply_ctm(igt_display_t *display, igt_output_t *output, const float *ctm)
+{
+	int res, i, blob_id;
+	uint64_t blob_address;
+	struct drm_ctm *ctm_data = NULL;
+	ctm_data = (struct drm_ctm *)
+		malloc(sizeof(struct drm_ctm));
+
+	for (i = 0; i < CSC_MAX_VALS; i++) {
+		ctm_data->ctm_coeff[i] = convertFloatToBinary(*(ctm + i));
+	}
+
+	blob_id = create_blob(display->drm_fd,
+				(int *)(ctm_data), sizeof(struct drm_ctm));
+	igt_fail_on_f (blob_id < 0, "CTM:BLOB IOCTL Fail\n");
+	res = set_color_property(display->drm_fd, output->config.crtc->crtc_id,
+				DRM_MODE_OBJECT_CRTC, "CTM", blob_id);
+	igt_fail_on_f (res < 0, "CTM:Set Property Failed\n");
+	res = get_color_property(display->drm_fd, output->config.crtc->crtc_id, DRM_MODE_OBJECT_CRTC, "CTM");
+	igt_fail_on_f (res < 0, "CTM:Get Property Failed\n");
+	blob_address = get_blob(display->drm_fd, res, sizeof(struct drm_ctm));
+	ctm_data = (struct drm_ctm *) (intptr_t) blob_address;
+
+}
+
+static void test_pipe_ctm_invalid_tests(struct data_t *data, enum blob op)
+{
+
+	int res, i, length;
+	struct drm_ctm *ctm_data = NULL;
+	struct drm_mode_create_blob blob;
+	struct drm_mode_create_blob empty_blob;
+	enum pipe pipe1;
+	int ret = -1;
+	struct drm_ctm *invalid_ctm_data = NULL;
+	igt_display_t *display = &data->display;
+	igt_output_t *output;
+
+	ctm_data = (struct drm_ctm *)malloc(sizeof(struct drm_ctm));
+	for (i = 0; i < CSC_MAX_VALS; i++) {
+		ctm_data->ctm_coeff[i] = 1L;
+	}
+
+	length = sizeof(struct drm_ctm);
+	blob.data = (uint64_t)ctm_data;
+	blob.length = length;
+	blob.blob_id = -1;
+
+	if (op == INVALID_BLOB_LENGTH)
+		blob.length = 10;
+	ret = ioctl(display->drm_fd, DRM_IOCTL_MODE_CREATEPROPBLOB, &blob);
+	igt_fail_on_f (ret < 0, "GAMMA:BLOB IOCTL Fail\n");
+
+	if (op == INVALID_BLOB_ID)
+		blob.blob_id = 4096*4096;
+	if (op == INVALID_BLOB_NULL)
+		blob = empty_blob;
+	for_each_connected_output(display, output) {
+		pipe1 = output->config.pipe;
+		igt_output_set_pipe(output, pipe1);
+
+	res = set_color_property(display->drm_fd, output->config.crtc->crtc_id,
+				DRM_MODE_OBJECT_CRTC, "CTM", blob.blob_id);
+	free(ctm_data);
+	free(invalid_ctm_data);
+	igt_fail_on_f (res >= 0, "CTM:Invalid Tests Failed %d\n", res);
+	}
+
+}
+static void test_pipe_ctm_fraction(struct data_t *data, igt_display_t *display, igt_output_t *output,
+				enum ctm_color value, int pipe1)
+{
+
+	/*Enable red planes */
+	fb_color.red  = 1;
+	fb_color.green = 0;
+	fb_color.blue = 0;
+	enable_plane(data, display, output, pipe1);
+
+	/*Apply fractional ctm*/
+	apply_ctm(display, output, ctm_fraction);
+	enable_plane(data, display, output, pipe1);
+	/*Restore Identity Matrix*/
+	apply_ctm(display, output, ctm_identity);
+	enable_plane(data, display, output, pipe1);
+
+
+}
+
+static void test_pipe_ctm_negative(struct data_t *data, igt_display_t *display, igt_output_t *output,
+					enum ctm_color value, int pipe1)
+{
+	igt_crc_t crc_black, crc_reference_black;
+
+	/*Enable black planes and capture  reference crc*/
+	fb_color.red  = 0;
+	fb_color.green = 0;
+	fb_color.blue = 0;
+	enable_plane(data, display, output, pipe1);
+	igt_pipe_crc_collect_crc(data->pipe_crc, &crc_reference_black);
+
+	/*Enable red planes */
+	fb_color.red  = 1;
+	fb_color.green = 0;
+	fb_color.blue = 0;
+	enable_plane(data, display, output, pipe1);
+
+	/*Apply negative ctm*/
+	apply_ctm(display, output, ctm_negative);
+	enable_plane(data, display, output, pipe1);
+	igt_pipe_crc_collect_crc(data->pipe_crc, &crc_black);
+
+	/*Compare CRCS*/
+	igt_assert_crc_equal(&crc_reference_black, &crc_black);
+
+	/*Restoring Identity matrix*/
+	apply_ctm(display, output, ctm_identity);
+	enable_plane(data, display, output, pipe1);
+
+}
+
+static void test_pipe_ctm_reverse(struct data_t *data, igt_display_t *display, igt_output_t *output,
+					enum ctm_color value, int pipe1)
+{
+	igt_crc_t crc_reference_red, crc_reference_blue;
+	igt_crc_t crc_reverse_red, crc_reverse_blue, crc_identity_red, crc_identity_blue;
+
+	/*Enable red planes and capture  reference crc*/
+	fb_color.red  = 1;
+	fb_color.green = 0;
+	fb_color.blue = 0;
+	enable_plane(data, display, output, pipe1);
+	igt_pipe_crc_collect_crc(data->pipe_crc, &crc_reference_red);
+	/*Apply reverse ctm matrix on red plane*/
+	apply_ctm(display, output, ctm_reverse);
+	enable_plane(data, display, output, pipe1);
+	igt_pipe_crc_collect_crc(data->pipe_crc, &crc_reverse_red);
+
+	/*Apply identity ctm matrix on red plane*/
+	apply_ctm(display, output, ctm_identity);
+	enable_plane(data, display, output, pipe1);
+	igt_pipe_crc_collect_crc(data->pipe_crc, &crc_identity_red);
+
+	/*Enable  blue planes and capture reference crc*/
+	fb_color.red  = 0;
+	fb_color.green = 0;
+	fb_color.blue = 1;
+
+	enable_plane(data, display, output, pipe1);
+	igt_pipe_crc_collect_crc(data->pipe_crc, &crc_reference_blue);
+
+	/*Apply reverse ctm matrix on blue plane*/
+	apply_ctm(display, output, ctm_reverse);
+	enable_plane(data, display, output, pipe1);
+	igt_pipe_crc_collect_crc(data->pipe_crc, &crc_reverse_blue);
+
+	/*Apply identity ctm matrix on blue plane*/
+	apply_ctm(display, output, ctm_identity);
+	enable_plane(data, display, output, pipe1);
+	igt_pipe_crc_collect_crc(data->pipe_crc, &crc_identity_blue);
+
+	/*Compare crc*/
+
+	igt_assert_crc_equal(&crc_reference_red, &crc_identity_red);
+	igt_assert_crc_equal(&crc_reference_blue, &crc_identity_blue);
+	igt_assert_crc_equal(&crc_reverse_blue, &crc_identity_red);
+	igt_assert_crc_equal(&crc_reverse_red, &crc_identity_blue);
+	/*Restoring Identity Matrix*/
+	apply_ctm(display, output, ctm_identity);
+	enable_plane(data, display, output, pipe1);
+}
+
+/*
+This function verify ctm feature using both CRC check.
+Steps followed are:
+1.Enable plane for capturing reference CRC
+2.Capture Reference CRC
+3.Apply CSC on Pipe
+4.Enable Plane .CSC will be applied on this planes.
+5.Capture CRC and compare with reference CRC
+6. Register Validation for CRC
+*/
+
+static void test_pipe_ctm(struct data_t *data, igt_display_t *display, igt_output_t *output,
+			  enum ctm_color value, int pipe1)
+{
+
+	const float *ctm;
+	igt_crc_t  crc_current, crc_reference, crc_reference_white;
+	fb_color.red  = 1;
+	fb_color.green = 1;
+	fb_color.blue = 1;
+
+	switch (value) {
+	case RED:
+		ctm = ctm_red;
+		fb_color.red  = 1;
+		fb_color.green = 0;
+		fb_color.blue = 0;
+		break;
+	case GREEN:
+		ctm = ctm_green;
+		fb_color.red  = 0;
+		fb_color.green = 1;
+		fb_color.blue = 0;
+		break;
+	case BLUE:
+		ctm = ctm_blue;
+		fb_color.red  = 0;
+		fb_color.green = 0;
+		fb_color.blue = 1;
+
+		break;
+	default:
+		ctm = ctm_identity;
+		break;
+	}
+
+	/*Enable planes and capture reference crc*/
+	enable_plane(data, display, output, pipe1);
+	igt_pipe_crc_collect_crc(data->pipe_crc, &crc_reference);
+
+	/*White Plane Enabling*/
+	fb_color.red  = 1;
+	fb_color.green = 1;
+	fb_color.blue = 1;
+
+	enable_plane(data, display, output, pipe1);
+	igt_pipe_crc_collect_crc(data->pipe_crc, &crc_reference_white);
+
+	/*Apply CSC*/
+	apply_ctm(display, output, ctm);
+	enable_plane(data, display, output, pipe1);
+	igt_pipe_crc_collect_crc(data->pipe_crc, &crc_current);
+	igt_assert_crc_equal(&crc_reference, &crc_current);
+
+	/*Restoring the Unit CSC*/
+	apply_ctm(display, output, ctm_identity);
+	enable_plane(data, display, output, pipe1);
+	igt_pipe_crc_collect_crc(data->pipe_crc, &crc_current);
+	igt_assert_crc_equal(&crc_reference_white, &crc_current);
+}
+
+static void apply_gamma(struct data_t *data, igt_display_t *display, igt_output_t *output, uint32_t num_samples, int unit_gamma)
+{
+	struct drm_palette *gamma_data =  NULL;
+	struct drm_palette *degamma_data =  NULL;
+	int  ret, res, blob_id_gamma,  blob_length_gamma;
+	int  blob_id_degamma,  blob_length_degamma;
+	uint64_t num_samples_gamma, num_samples_degamma;
+	num_samples_gamma = num_samples;
+
+	if (num_samples == BDW_SPLITGAMMA_MAX_VALS) {
+
+		kmstest_get_property(display->drm_fd,  output->config.crtc->crtc_id, DRM_MODE_OBJECT_CRTC, "COEFFICIENTS_BEFORE_CTM", NULL, &num_samples_degamma, NULL);
+		kmstest_get_property(display->drm_fd,  output->config.crtc->crtc_id, DRM_MODE_OBJECT_CRTC, "COEFFICIENTS_AFTER_CTM", NULL, &num_samples_gamma, NULL);
+
+		blob_length_degamma = (sizeof(struct drm_palette) + (num_samples_degamma * sizeof(struct drm_r32g32b32)));
+		degamma_data = malloc(blob_length_degamma);
+		write_gamma_lut(num_samples_degamma, degamma_data->lut, unit_gamma);
+		blob_id_degamma = create_blob(display->drm_fd, (uint64_t *)(degamma_data), blob_length_degamma);
+		if (blob_id_degamma < 0)
+			free(degamma_data);
+		igt_fail_on_f (blob_id_degamma < 0, "DeGAMMA:BLOB IOCTL Fail\n");
+
+	}
+
+	if (num_samples == 0)
+		blob_length_gamma = 1;
+	else
+		blob_length_gamma = (sizeof(struct drm_palette) + (num_samples_gamma * sizeof(struct drm_r32g32b32)));
+
+	gamma_data = malloc(blob_length_gamma);
+	if (num_samples == 0)
+		write_gamma_lut(0, gamma_data->lut, unit_gamma);
+	else
+		write_gamma_lut(num_samples_gamma, gamma_data->lut, unit_gamma);
+
+	blob_id_gamma = create_blob(display->drm_fd, (uint64_t *)(gamma_data), blob_length_gamma);
+	if (blob_id_gamma < 0)
+		free(gamma_data);
+	igt_fail_on_f (blob_id_gamma < 0, "GAMMA:BLOB IOCTL Fail\n");
+
+	/*Disabling degamma*/
+	if (unit_gamma == 2) {
+		blob_length_degamma = 1;
+		degamma_data = malloc(blob_length_degamma);
+		write_gamma_lut(0, degamma_data->lut, unit_gamma);
+		blob_id_degamma = create_blob(display->drm_fd, (uint64_t *)(degamma_data), blob_length_degamma);
+		if (blob_id_degamma < 0)
+			free(degamma_data);
+		igt_fail_on_f (blob_id_degamma < 0, "DeGAMMA:BLOB IOCTL Fail\n");
+
+		res = set_color_property(display->drm_fd, output->config.crtc->crtc_id,
+				DRM_MODE_OBJECT_CRTC, "PALETTE_BEFORE_CTM", blob_id_degamma);
+		ret = get_color_property(display->drm_fd, output->config.crtc->crtc_id,
+				DRM_MODE_OBJECT_CRTC, "PALETTE_BEFORE_CTM");
+		if (res < 0)
+			free(degamma_data);
+		igt_fail_on_f (res < 0, "PALETTE_BEFORE_CTM:Set Property Failed\n");
+		igt_fail_on_f (ret < 0, "PALETTE_BEFORE_CTM:Set Property Failed\n");
+
+	}
+
+	if (num_samples == BDW_SPLITGAMMA_MAX_VALS) {
+
+		res = set_color_property(display->drm_fd, output->config.crtc->crtc_id,
+				DRM_MODE_OBJECT_CRTC, "PALETTE_BEFORE_CTM", blob_id_degamma);
+		ret = get_color_property(display->drm_fd, output->config.crtc->crtc_id,
+				DRM_MODE_OBJECT_CRTC, "PALETTE_BEFORE_CTM");
+		if (res < 0)
+			free(degamma_data);
+		igt_fail_on_f (res < 0, "PALETTE_BEFORE_CTM:Set Property Failed\n");
+		igt_fail_on_f (ret < 0, "PALETTE_BEFORE_CTM:Set Property Failed\n");
+		free(degamma_data);
+	}
+	res = set_color_property(display->drm_fd, output->config.crtc->crtc_id,
+			DRM_MODE_OBJECT_CRTC, "PALETTE_AFTER_CTM", blob_id_gamma);
+
+	if (res < 0)
+		free(gamma_data);
+	igt_fail_on_f (res < 0, "PALETTE_AFTER_CTM:Set Property Failed\n");
+
+	ret = get_color_property(display->drm_fd, output->config.crtc->crtc_id,
+			DRM_MODE_OBJECT_CRTC, "PALETTE_AFTER_CTM");
+
+	free(gamma_data);
+	igt_fail_on_f (ret < 0, "PALETTE_BEFORE_CTM:Set Property Failed\n");
+}
+
+static void test_pipe_gamma_invalid_tests(struct data_t *data, uint32_t num_samples, enum blob op)
+{
+	int res, blob_length;
+	struct drm_palette *gamma_data =  NULL;
+	struct drm_mode_create_blob blob;
+	struct drm_mode_create_blob empty_blob;
+	enum pipe pipe1;
+	int ret = -1;
+
+	igt_display_t *display = &data->display;
+	igt_output_t *output;
+	if (num_samples == 0)
+		blob_length = 1;
+	else
+		blob_length = (sizeof(struct drm_palette) + (num_samples * sizeof(struct drm_r32g32b32)));
+
+	gamma_data = malloc(blob_length);
+	if (op == INVALID_BLOB_DATA)
+		write_gamma_lut(0, gamma_data->lut, 1);
+	else
+		write_gamma_lut(num_samples, gamma_data->lut, 1);
+	blob.data = (uint64_t)gamma_data;
+	blob.length = blob_length;
+	blob.blob_id = -1;
+
+	if (op == INVALID_BLOB_LENGTH)
+		blob.length = 10;
+
+	ret = ioctl(display->drm_fd, DRM_IOCTL_MODE_CREATEPROPBLOB, &blob);
+	igt_fail_on_f (ret < 0, "GAMMA:BLOB IOCTL Fail\n");
+
+	if (op == INVALID_BLOB_ID)
+		blob.blob_id = 4096*4096;
+	if (op == INVALID_BLOB_NULL)
+		blob = empty_blob;
+	for_each_connected_output(display, output) {
+		pipe1 = output->config.pipe;
+		igt_output_set_pipe(output, pipe1);
+
+	res = set_color_property(display->drm_fd, output->config.crtc->crtc_id,
+				DRM_MODE_OBJECT_CRTC, "PALETTE_AFTER_CTM", blob.blob_id);
+	free(gamma_data);
+	if (op == INVALID_BLOB_DATA)
+		igt_fail_on_f (res < 0, "GAMMA:Invalid Data Tests Failed %d\n", res);
+	else
+		igt_fail_on_f (res >= 0, "GAMMA:Invalid Tests Failed %d\n", res);
+	apply_gamma(data, display, output, 0, 1);
+	}
+}
+
+static void test_pipe_degamma_invalid_tests(struct data_t *data, uint32_t num_samples, enum blob op)
+{
+
+	int res, blob_length;
+	struct drm_palette *degamma_data =  NULL;
+	struct drm_mode_create_blob blob;
+	struct drm_mode_create_blob empty_blob;
+	enum pipe pipe1;
+	int ret = -1;
+
+	igt_display_t *display = &data->display;
+	igt_output_t *output;
+
+	if (num_samples == 0)
+		blob_length = 1;
+	else
+		blob_length = (sizeof(struct drm_palette) + (num_samples * sizeof(struct drm_r32g32b32)));
+	degamma_data = malloc(blob_length);
+	if (op == INVALID_BLOB_DATA)
+		write_gamma_lut(0, degamma_data->lut, 1);
+	else
+		write_gamma_lut(num_samples, degamma_data->lut, 1);
+
+	blob.data = (uint64_t)degamma_data;
+	blob.length = blob_length;
+	blob.blob_id = -1;
+
+	if (op == INVALID_BLOB_LENGTH)
+		blob.length = 10;
+
+	ret = ioctl(display->drm_fd, DRM_IOCTL_MODE_CREATEPROPBLOB, &blob);
+	igt_fail_on_f (ret < 0, "GAMMA:BLOB IOCTL Fail\n");
+
+	if (op == INVALID_BLOB_ID)
+		blob.blob_id = 4096*4096;
+	if (op == INVALID_BLOB_NULL)
+		blob = empty_blob;
+	for_each_connected_output(display, output) {
+		pipe1 = output->config.pipe;
+		igt_output_set_pipe(output, pipe1);
+
+	res = set_color_property(display->drm_fd, output->config.crtc->crtc_id,
+				DRM_MODE_OBJECT_CRTC, "PALETTE_BEFORE_CTM", blob.blob_id);
+	free(degamma_data);
+	if (op == INVALID_BLOB_DATA)
+		igt_fail_on_f (res < 0, "DEGAMMA:Invalid Data Tests Failed %d\n", res);
+	else
+		igt_fail_on_f (res >= 0, "DEGAMMA:Invalid Tests Failed %d\n", res);
+	apply_gamma(data, display, output, 0, 1);
+	}
+
+
+}
+/*
+This function verify ctm feature using both CRC check.
+Steps followed are:
+	1.Enable Black plane and capture CRC_REFERENCE_BLACK.
+	2.Enable White plane and capture CRS_REFERENCE_WHITE
+	3.Enable Red plane.
+	4.Apply LOW Gamma.
+	5.Capture CRC_Black.
+	6.Apply High Gamma and capture CRC_White.
+	7.CRC_Black should be equivalent to CRC_REFERENCE_BLACK
+	8.CRC_White should be equivalent to CRC_REFERENCE_WHite.
+
+
+*/
+static void test_pipe_gamma(struct data_t *data, igt_display_t *display, igt_output_t *output,
+				uint32_t num_samples, int values, int pipe1)
+{
+	int unit_gamma, disable_gamma;
+	igt_crc_t crc_black, crc_white, crc_reference_white, crc_reference_black;
+
+
+	/*Enable black planes and capture reference crc*/
+
+	fb_color.red = 0;
+	fb_color.green = 0;
+	fb_color.blue = 0;
+	enable_plane(data, display, output, pipe1);
+	igt_pipe_crc_collect_crc(data->pipe_crc, &crc_reference_black);
+	/*Enable white plane and capture refernce crc*/
+	fb_color.red = 1;
+	fb_color.green = 1;
+	fb_color.blue = 1;
+	enable_plane(data, display, output, pipe1);
+	igt_pipe_crc_collect_crc(data->pipe_crc, &crc_reference_white);
+
+	/*Enable red planes and apply unit gamma*/
+	fb_color.red = 1;
+	fb_color.green = 0;
+	fb_color.blue = 0;
+	unit_gamma = 0; /*0 -> white 1->black*/
+	apply_gamma(data, display, output, num_samples, unit_gamma);
+	enable_plane(data, display, output, pipe1);
+	igt_pipe_crc_collect_crc(data->pipe_crc, &crc_white);
+
+	/* Apply 0x0 gamma */
+	unit_gamma =  1;
+
+	apply_gamma(data, display, output, num_samples, unit_gamma);
+	enable_plane(data, display, output, pipe1);
+	igt_pipe_crc_collect_crc(data->pipe_crc, &crc_black);
+	igt_assert_crc_equal(&crc_reference_black, &crc_black);
+	igt_assert_crc_equal(&crc_reference_white, &crc_white);
+
+	/*Disabling gamma*/
+	if (num_samples == BDW_SPLITGAMMA_MAX_VALS) {
+		disable_gamma = 2;
+		apply_gamma(data, display, output, 0, disable_gamma);
+	} else {
+		apply_gamma(data, display, output, 0, unit_gamma);
+	}
+
+}
+
+static void test_legacy_gamma (struct data_t *data, igt_display_t *display, igt_output_t *output, int pipe1)
+{
+	int ret, i;
+	uint16_t *val = malloc(sizeof(uint16_t) * 256);
+	float gamma1 = 1.0;
+	fb_color.red = 1;
+	fb_color.green = 1;
+	fb_color.blue = 1;
+	enable_plane(data, display, output, pipe1);
+	for (i = 0; i < 256 ; i++) {
+		val[i] = 0xffff * pow((i/255), gamma1);
+
+	}
+	for_each_connected_output (display, output) {
+		ret = drmModeCrtcSetGamma (display->drm_fd, output->config.crtc->crtc_id, 256, val, val, val);
+		igt_assert_lte(0, ret);
+
+	}
+}
+
+static void test_pipe_color(struct data_t *data, enum color_property prop_name, int value)
+{
+	igt_display_t *display = &data->display;
+	igt_output_t *output;
+	igt_plane_t *plane;
+	enum pipe pipe1;
+	int res;
+
+	for_each_connected_output(display, output) {
+		pipe1 = output->config.pipe;
+		igt_output_set_pipe(output, pipe1);
+		res = get_color_property(display->drm_fd, output->config.crtc->crtc_id, DRM_MODE_OBJECT_CRTC, "CTM");
+		igt_require (res >= 0);
+		res = get_color_property(display->drm_fd, output->config.crtc->crtc_id, DRM_MODE_OBJECT_CRTC, "PALETTE_BEFORE_CTM");
+		igt_require (res >= 0);
+		res = get_color_property(display->drm_fd, output->config.crtc->crtc_id, DRM_MODE_OBJECT_CRTC, "PALETTE_AFTER_CTM");
+		igt_require (res >= 0);
+
+		switch (prop_name) {
+		case gamma_property_8bit:
+			test_pipe_gamma(data, display, output,
+					BDW_8BIT_GAMMA_MAX_VALS, value, pipe1);
+			break;
+		case legacy_gamma:
+			test_legacy_gamma(data, display, output, pipe1);
+			break;
+		case gamma_property_10bit:
+			test_pipe_gamma(data, display, output, BDW_10BIT_GAMMA_MAX_VALS, value, pipe1);
+			break;
+		case ctm_property:
+			switch (value) {
+			case REVERSE:
+				test_pipe_ctm_reverse(data, display, output, value, pipe1);
+				break;
+			case NEGATIVE:
+				test_pipe_ctm_negative(data, display, output, value, pipe1);
+				break;
+			case FRACTION:
+				test_pipe_ctm_fraction(data, display, output, value, pipe1);
+				break;
+			default:
+				test_pipe_ctm(data, display, output, value, pipe1);
+				break;
+			}
+			break;
+		case gamma_property_split:
+			test_pipe_gamma(data, display, output,
+					BDW_SPLITGAMMA_MAX_VALS, value, pipe1);
+			break;
+		case gamma_property_12bit:
+			test_pipe_gamma(data, display, output,
+					BDW_12BIT_GAMMA_MAX_VALS, value, pipe1);
+			break;
+		default:
+			igt_info("Invalid Test\n");
+			break;
+		}
+		cleanup_fb(data);
+		plane = igt_output_get_plane(output, IGT_PLANE_2);
+		cleanup_crtc(data, output, plane);
+	}
+}
+
+
+igt_main
+{
+	struct data_t data = {};
+	int values = 1;
+	igt_skip_on_simulation();
+	igt_fixture{
+		data.drm_fd = drm_open_driver_master(DRIVER_INTEL);
+		kmstest_set_vt_graphics_mode();
+		igt_display_init(&data.display, data.drm_fd);
+		igt_require_pipe_crc();
+	}
+
+	igt_subtest("ctm-red")
+		test_pipe_color(&data, ctm_property, RED);
+	igt_subtest("ctm-green")
+		test_pipe_color(&data, ctm_property, GREEN);
+	igt_subtest("ctm-blue")
+		test_pipe_color(&data, ctm_property, BLUE);
+	igt_subtest("ctm-reverse")
+		test_pipe_color(&data, ctm_property, REVERSE);
+	igt_subtest("ctm-negative")
+		test_pipe_color(&data, ctm_property, NEGATIVE);
+	igt_subtest("ctm-fraction")
+		test_pipe_color(&data, ctm_property, FRACTION);
+	igt_subtest("ctm-invalid-blob-id")
+		test_pipe_ctm_invalid_tests(&data, INVALID_BLOB_ID);
+	igt_subtest("ctm-invalid-blob-null")
+		test_pipe_ctm_invalid_tests(&data, INVALID_BLOB_NULL);
+	igt_subtest("ctm-invalid-blob-length")
+		test_pipe_ctm_invalid_tests(&data, INVALID_BLOB_LENGTH);
+	igt_subtest("gamma-legacy")
+		test_pipe_color(&data, legacy_gamma, values);
+	igt_subtest("gamma-8bit")
+		test_pipe_color(&data, gamma_property_8bit, values);
+	igt_subtest("gamma-10bit")
+		test_pipe_color(&data, gamma_property_10bit, values);
+	igt_subtest("gamma-12bit")
+		test_pipe_color(&data, gamma_property_12bit, values);
+	igt_subtest("gamma-split")
+		test_pipe_color(&data, gamma_property_split, values);
+	igt_subtest("gamma-invalid-blob-id")
+		test_pipe_gamma_invalid_tests(&data, BDW_12BIT_GAMMA_MAX_VALS, INVALID_BLOB_ID);
+	igt_subtest("gamma-invalid-blob-null")
+		test_pipe_gamma_invalid_tests(&data, BDW_12BIT_GAMMA_MAX_VALS, INVALID_BLOB_NULL);
+	igt_subtest("gamma-invalid-blob-length")
+		test_pipe_gamma_invalid_tests(&data, BDW_12BIT_GAMMA_MAX_VALS, INVALID_BLOB_LENGTH);
+	igt_subtest("gamma-8bit-invalid-blob-data")
+		test_pipe_gamma_invalid_tests(&data, BDW_8BIT_GAMMA_MAX_VALS, INVALID_BLOB_DATA);
+	igt_subtest("gamma-10bit-invalid-blob-data")
+		test_pipe_gamma_invalid_tests(&data, BDW_10BIT_GAMMA_MAX_VALS, INVALID_BLOB_DATA);
+	igt_subtest("gamma-12bit-invalid-blob-data")
+		test_pipe_gamma_invalid_tests(&data, BDW_12BIT_GAMMA_MAX_VALS, INVALID_BLOB_DATA);
+	igt_subtest("degamma-invalid-blob-id")
+		test_pipe_degamma_invalid_tests(&data, BDW_12BIT_GAMMA_MAX_VALS, INVALID_BLOB_ID);
+	igt_subtest("degamma-invalid-blob-null")
+		test_pipe_degamma_invalid_tests(&data, BDW_12BIT_GAMMA_MAX_VALS, INVALID_BLOB_NULL);
+	igt_subtest("degamma-invalid-blob-length")
+		test_pipe_degamma_invalid_tests(&data, BDW_12BIT_GAMMA_MAX_VALS, INVALID_BLOB_LENGTH);
+	igt_subtest("degamma-8bit-invalid-blob-data")
+		test_pipe_degamma_invalid_tests(&data, BDW_8BIT_GAMMA_MAX_VALS, INVALID_BLOB_DATA);
+	igt_subtest("degamma-10bit-invalid-blob-data")
+		test_pipe_degamma_invalid_tests(&data, BDW_10BIT_GAMMA_MAX_VALS, INVALID_BLOB_DATA);
+	igt_subtest("degamma-12bit-invalid-blob-data")
+		test_pipe_degamma_invalid_tests(&data, BDW_12BIT_GAMMA_MAX_VALS, INVALID_BLOB_DATA);
+
+	igt_fixture{
+		igt_display_fini(&data.display);
+	}
+}
+
-- 
1.9.1

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