[PATCH v6 14/44] drm/vkms: Add enumerated 1D curve colorop

Harry Wentland harry.wentland at amd.com
Thu Oct 3 20:00:56 UTC 2024


This patch introduces a VKMS color pipeline that includes two
drm_colorops for named transfer functions. For now the only ones
supported are sRGB EOTF, sRGB Inverse EOTF, and a Linear TF.
We will expand this in the future but I don't want to do so
without accompanying IGT tests.

We introduce a new vkms_luts.c file that hard-codes sRGB EOTF,
sRGB Inverse EOTF, and a linear EOTF LUT. These have been
generated with 256 entries each as IGT is currently testing
only 8 bpc surfaces. We will likely need higher precision
but I'm reluctant to make that change without clear indication
that we need it. We'll revisit and, if necessary, regenerate
the LUTs when we have IGT tests for higher precision buffers.

Signed-off-by: Harry Wentland <harry.wentland at amd.com>
Signed-off-by: Alex Hung <alex.hung at amd.com>
---

v6:
 - drop 'len' var (Louis Chauvet)
 - cleanup if colorop alloc or init fails (Louis Chauvet)
 - switch loop in pre_blend_transform (Louis Chauvet)
 - drop extraneous if (colorop) inside while (colorop) (Louis Chauvet)

v5:
 - Squash with "Pull apply_colorop out of pre_blend_color_transform"
   (Sebastian)
 - Fix warnings
 - Fix include
 - Drop TODOs

v4:
 - Drop _tf_ from color_pipeline init function
 - Pass supported TFs into colorop init
 - Create bypass pipeline in DRM helper (Pekka)

v2:
 - Add commit description
 - Fix sRGB EOTF LUT definition
 - Add linear and sRGB inverse EOTF LUTs

 drivers/gpu/drm/vkms/Makefile        |   4 +-
 drivers/gpu/drm/vkms/vkms_colorop.c  |  81 +++
 drivers/gpu/drm/vkms/vkms_composer.c |  49 ++
 drivers/gpu/drm/vkms/vkms_drv.h      |   4 +
 drivers/gpu/drm/vkms/vkms_luts.c     | 802 +++++++++++++++++++++++++++
 drivers/gpu/drm/vkms/vkms_luts.h     |  12 +
 drivers/gpu/drm/vkms/vkms_plane.c    |   2 +
 7 files changed, 953 insertions(+), 1 deletion(-)
 create mode 100644 drivers/gpu/drm/vkms/vkms_colorop.c
 create mode 100644 drivers/gpu/drm/vkms/vkms_luts.c
 create mode 100644 drivers/gpu/drm/vkms/vkms_luts.h

diff --git a/drivers/gpu/drm/vkms/Makefile b/drivers/gpu/drm/vkms/Makefile
index 8d3e46dde635..0bf3c116f1ae 100644
--- a/drivers/gpu/drm/vkms/Makefile
+++ b/drivers/gpu/drm/vkms/Makefile
@@ -6,7 +6,9 @@ vkms-y := \
 	vkms_formats.o \
 	vkms_crtc.o \
 	vkms_composer.o \
-	vkms_writeback.o
+	vkms_writeback.o \
+	vkms_colorop.o \
+	vkms_luts.o

 obj-$(CONFIG_DRM_VKMS) += vkms.o
 obj-$(CONFIG_DRM_VKMS_KUNIT_TESTS) += tests/
diff --git a/drivers/gpu/drm/vkms/vkms_colorop.c b/drivers/gpu/drm/vkms/vkms_colorop.c
new file mode 100644
index 000000000000..aebd467c4e61
--- /dev/null
+++ b/drivers/gpu/drm/vkms/vkms_colorop.c
@@ -0,0 +1,81 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+#include <linux/slab.h>
+#include <drm/drm_colorop.h>
+#include <drm/drm_print.h>
+#include <drm/drm_property.h>
+#include <drm/drm_plane.h>
+
+#include "vkms_drv.h"
+
+static const u64 supported_tfs =
+	BIT(DRM_COLOROP_1D_CURVE_SRGB_EOTF) |
+	BIT(DRM_COLOROP_1D_CURVE_SRGB_INV_EOTF);
+
+#define MAX_COLOR_PIPELINE_OPS 2
+
+static int vkms_initialize_color_pipeline(struct drm_plane *plane, struct drm_prop_enum_list *list)
+{
+	struct drm_colorop *ops[MAX_COLOR_PIPELINE_OPS];
+	struct drm_device *dev = plane->dev;
+	int ret;
+	int i = 0;
+
+	memset(ops, 0, sizeof(ops));
+
+	/* 1st op: 1d curve */
+	ops[i] = kzalloc(sizeof(struct drm_colorop), GFP_KERNEL);
+	if (!ops[i]) {
+		DRM_ERROR("KMS: Failed to allocate colorop\n");
+		ret = -ENOMEM;
+		goto cleanup;
+	}
+
+	ret = drm_colorop_curve_1d_init(dev, ops[i], plane, supported_tfs);
+	if (ret)
+		goto cleanup;
+
+	list->type = ops[i]->base.id;
+	list->name = kasprintf(GFP_KERNEL, "Color Pipeline %d", ops[i]->base.id);
+
+	i++;
+
+	/* 2nd op: 1d curve */
+	ops[i] = kzalloc(sizeof(struct drm_colorop), GFP_KERNEL);
+	if (!ops[i]) {
+		DRM_ERROR("KMS: Failed to allocate colorop\n");
+		ret = -ENOMEM;
+		goto cleanup;
+	}
+
+	ret = drm_colorop_curve_1d_init(dev, ops[i], plane, supported_tfs);
+	if (ret)
+		goto cleanup;
+
+	drm_colorop_set_next_property(ops[i-1], ops[i]);
+
+	return 0;
+
+cleanup:
+	for (; i >= 0; i--)
+		if (ops[i])
+			kfree(ops[i]);
+
+	return ret;
+}
+
+int vkms_initialize_colorops(struct drm_plane *plane)
+{
+	struct drm_prop_enum_list pipeline;
+	int ret;
+
+	/* Add color pipeline */
+	ret = vkms_initialize_color_pipeline(plane, &pipeline);
+	if (ret)
+		return ret;
+
+	/* Create COLOR_PIPELINE property and attach */
+	drm_plane_create_color_pipeline_property(plane, &pipeline, 1);
+
+	return 0;
+}
diff --git a/drivers/gpu/drm/vkms/vkms_composer.c b/drivers/gpu/drm/vkms/vkms_composer.c
index 93f4ed5ea52f..a35466e68237 100644
--- a/drivers/gpu/drm/vkms/vkms_composer.c
+++ b/drivers/gpu/drm/vkms/vkms_composer.c
@@ -14,6 +14,7 @@
 #include "vkms_drv.h"
 #include <kunit/visibility.h>
 #include "vkms_composer.h"
+#include "vkms_luts.h"

 static u16 pre_mul_blend_channel(u16 src, u16 dst, u16 alpha)
 {
@@ -167,6 +168,51 @@ static void apply_lut(const struct vkms_crtc_state *crtc_state, struct line_buff
 	}
 }

+static void apply_colorop(struct pixel_argb_u16 *pixel, struct drm_colorop *colorop)
+{
+	struct drm_colorop_state *colorop_state = colorop->state;
+
+	if (colorop->type == DRM_COLOROP_1D_CURVE) {
+		switch (colorop_state->curve_1d_type) {
+			case DRM_COLOROP_1D_CURVE_SRGB_INV_EOTF:
+				pixel->r = apply_lut_to_channel_value(&srgb_inv_eotf, pixel->r, LUT_RED);
+				pixel->g = apply_lut_to_channel_value(&srgb_inv_eotf, pixel->g, LUT_GREEN);
+				pixel->b = apply_lut_to_channel_value(&srgb_inv_eotf, pixel->b, LUT_BLUE);
+				break;
+			case DRM_COLOROP_1D_CURVE_SRGB_EOTF:
+				pixel->r = apply_lut_to_channel_value(&srgb_eotf, pixel->r, LUT_RED);
+				pixel->g = apply_lut_to_channel_value(&srgb_eotf, pixel->g, LUT_GREEN);
+				pixel->b = apply_lut_to_channel_value(&srgb_eotf, pixel->b, LUT_BLUE);
+				break;
+			default:
+				DRM_DEBUG_DRIVER("unkown colorop 1D curve type %d\n", colorop_state->curve_1d_type);
+				break;
+		}
+	}
+
+}
+
+static void pre_blend_color_transform(const struct vkms_plane_state *plane_state, struct line_buffer *output_buffer)
+{
+	for (size_t x = 0; x < output_buffer->n_pixels; x++) {
+		struct drm_colorop *colorop = plane_state->base.base.color_pipeline;
+
+		while (colorop) {
+			struct drm_colorop_state *colorop_state;
+
+			colorop_state = colorop->state;
+
+			if (!colorop_state)
+				return;
+
+			if (!colorop_state->bypass)
+				apply_colorop(&output_buffer->pixels[x], colorop);
+
+			colorop = colorop->next;
+		}
+	}
+}
+
 /**
  * blend - blend the pixels from all planes and compute crc
  * @wb: The writeback frame buffer metadata
@@ -204,6 +250,9 @@ static void blend(struct vkms_writeback_job *wb,
 				continue;

 			vkms_compose_row(stage_buffer, plane[i], y_pos);
+
+			pre_blend_color_transform(plane[i], stage_buffer);
+
 			pre_mul_alpha_blend(plane[i]->frame_info, stage_buffer,
 					    output_buffer);
 		}
diff --git a/drivers/gpu/drm/vkms/vkms_drv.h b/drivers/gpu/drm/vkms/vkms_drv.h
index 5e46ea5b96dc..278cf3533f58 100644
--- a/drivers/gpu/drm/vkms/vkms_drv.h
+++ b/drivers/gpu/drm/vkms/vkms_drv.h
@@ -169,4 +169,8 @@ void vkms_writeback_row(struct vkms_writeback_job *wb, const struct line_buffer
 /* Writeback */
 int vkms_enable_writeback_connector(struct vkms_device *vkmsdev);

+/* Colorops */
+int vkms_initialize_colorops(struct drm_plane *plane);
+
+
 #endif /* _VKMS_DRV_H_ */
diff --git a/drivers/gpu/drm/vkms/vkms_luts.c b/drivers/gpu/drm/vkms/vkms_luts.c
new file mode 100644
index 000000000000..6553d6d442b4
--- /dev/null
+++ b/drivers/gpu/drm/vkms/vkms_luts.c
@@ -0,0 +1,802 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+#include <drm/drm_mode.h>
+
+#include "vkms_drv.h"
+#include "vkms_luts.h"
+
+static struct drm_color_lut linear_array[LUT_SIZE] = {
+	{ 0x0, 0x0, 0x0, 0 },
+	{ 0x101, 0x101, 0x101, 0 },
+	{ 0x202, 0x202, 0x202, 0 },
+	{ 0x303, 0x303, 0x303, 0 },
+	{ 0x404, 0x404, 0x404, 0 },
+	{ 0x505, 0x505, 0x505, 0 },
+	{ 0x606, 0x606, 0x606, 0 },
+	{ 0x707, 0x707, 0x707, 0 },
+	{ 0x808, 0x808, 0x808, 0 },
+	{ 0x909, 0x909, 0x909, 0 },
+	{ 0xa0a, 0xa0a, 0xa0a, 0 },
+	{ 0xb0b, 0xb0b, 0xb0b, 0 },
+	{ 0xc0c, 0xc0c, 0xc0c, 0 },
+	{ 0xd0d, 0xd0d, 0xd0d, 0 },
+	{ 0xe0e, 0xe0e, 0xe0e, 0 },
+	{ 0xf0f, 0xf0f, 0xf0f, 0 },
+	{ 0x1010, 0x1010, 0x1010, 0 },
+	{ 0x1111, 0x1111, 0x1111, 0 },
+	{ 0x1212, 0x1212, 0x1212, 0 },
+	{ 0x1313, 0x1313, 0x1313, 0 },
+	{ 0x1414, 0x1414, 0x1414, 0 },
+	{ 0x1515, 0x1515, 0x1515, 0 },
+	{ 0x1616, 0x1616, 0x1616, 0 },
+	{ 0x1717, 0x1717, 0x1717, 0 },
+	{ 0x1818, 0x1818, 0x1818, 0 },
+	{ 0x1919, 0x1919, 0x1919, 0 },
+	{ 0x1a1a, 0x1a1a, 0x1a1a, 0 },
+	{ 0x1b1b, 0x1b1b, 0x1b1b, 0 },
+	{ 0x1c1c, 0x1c1c, 0x1c1c, 0 },
+	{ 0x1d1d, 0x1d1d, 0x1d1d, 0 },
+	{ 0x1e1e, 0x1e1e, 0x1e1e, 0 },
+	{ 0x1f1f, 0x1f1f, 0x1f1f, 0 },
+	{ 0x2020, 0x2020, 0x2020, 0 },
+	{ 0x2121, 0x2121, 0x2121, 0 },
+	{ 0x2222, 0x2222, 0x2222, 0 },
+	{ 0x2323, 0x2323, 0x2323, 0 },
+	{ 0x2424, 0x2424, 0x2424, 0 },
+	{ 0x2525, 0x2525, 0x2525, 0 },
+	{ 0x2626, 0x2626, 0x2626, 0 },
+	{ 0x2727, 0x2727, 0x2727, 0 },
+	{ 0x2828, 0x2828, 0x2828, 0 },
+	{ 0x2929, 0x2929, 0x2929, 0 },
+	{ 0x2a2a, 0x2a2a, 0x2a2a, 0 },
+	{ 0x2b2b, 0x2b2b, 0x2b2b, 0 },
+	{ 0x2c2c, 0x2c2c, 0x2c2c, 0 },
+	{ 0x2d2d, 0x2d2d, 0x2d2d, 0 },
+	{ 0x2e2e, 0x2e2e, 0x2e2e, 0 },
+	{ 0x2f2f, 0x2f2f, 0x2f2f, 0 },
+	{ 0x3030, 0x3030, 0x3030, 0 },
+	{ 0x3131, 0x3131, 0x3131, 0 },
+	{ 0x3232, 0x3232, 0x3232, 0 },
+	{ 0x3333, 0x3333, 0x3333, 0 },
+	{ 0x3434, 0x3434, 0x3434, 0 },
+	{ 0x3535, 0x3535, 0x3535, 0 },
+	{ 0x3636, 0x3636, 0x3636, 0 },
+	{ 0x3737, 0x3737, 0x3737, 0 },
+	{ 0x3838, 0x3838, 0x3838, 0 },
+	{ 0x3939, 0x3939, 0x3939, 0 },
+	{ 0x3a3a, 0x3a3a, 0x3a3a, 0 },
+	{ 0x3b3b, 0x3b3b, 0x3b3b, 0 },
+	{ 0x3c3c, 0x3c3c, 0x3c3c, 0 },
+	{ 0x3d3d, 0x3d3d, 0x3d3d, 0 },
+	{ 0x3e3e, 0x3e3e, 0x3e3e, 0 },
+	{ 0x3f3f, 0x3f3f, 0x3f3f, 0 },
+	{ 0x4040, 0x4040, 0x4040, 0 },
+	{ 0x4141, 0x4141, 0x4141, 0 },
+	{ 0x4242, 0x4242, 0x4242, 0 },
+	{ 0x4343, 0x4343, 0x4343, 0 },
+	{ 0x4444, 0x4444, 0x4444, 0 },
+	{ 0x4545, 0x4545, 0x4545, 0 },
+	{ 0x4646, 0x4646, 0x4646, 0 },
+	{ 0x4747, 0x4747, 0x4747, 0 },
+	{ 0x4848, 0x4848, 0x4848, 0 },
+	{ 0x4949, 0x4949, 0x4949, 0 },
+	{ 0x4a4a, 0x4a4a, 0x4a4a, 0 },
+	{ 0x4b4b, 0x4b4b, 0x4b4b, 0 },
+	{ 0x4c4c, 0x4c4c, 0x4c4c, 0 },
+	{ 0x4d4d, 0x4d4d, 0x4d4d, 0 },
+	{ 0x4e4e, 0x4e4e, 0x4e4e, 0 },
+	{ 0x4f4f, 0x4f4f, 0x4f4f, 0 },
+	{ 0x5050, 0x5050, 0x5050, 0 },
+	{ 0x5151, 0x5151, 0x5151, 0 },
+	{ 0x5252, 0x5252, 0x5252, 0 },
+	{ 0x5353, 0x5353, 0x5353, 0 },
+	{ 0x5454, 0x5454, 0x5454, 0 },
+	{ 0x5555, 0x5555, 0x5555, 0 },
+	{ 0x5656, 0x5656, 0x5656, 0 },
+	{ 0x5757, 0x5757, 0x5757, 0 },
+	{ 0x5858, 0x5858, 0x5858, 0 },
+	{ 0x5959, 0x5959, 0x5959, 0 },
+	{ 0x5a5a, 0x5a5a, 0x5a5a, 0 },
+	{ 0x5b5b, 0x5b5b, 0x5b5b, 0 },
+	{ 0x5c5c, 0x5c5c, 0x5c5c, 0 },
+	{ 0x5d5d, 0x5d5d, 0x5d5d, 0 },
+	{ 0x5e5e, 0x5e5e, 0x5e5e, 0 },
+	{ 0x5f5f, 0x5f5f, 0x5f5f, 0 },
+	{ 0x6060, 0x6060, 0x6060, 0 },
+	{ 0x6161, 0x6161, 0x6161, 0 },
+	{ 0x6262, 0x6262, 0x6262, 0 },
+	{ 0x6363, 0x6363, 0x6363, 0 },
+	{ 0x6464, 0x6464, 0x6464, 0 },
+	{ 0x6565, 0x6565, 0x6565, 0 },
+	{ 0x6666, 0x6666, 0x6666, 0 },
+	{ 0x6767, 0x6767, 0x6767, 0 },
+	{ 0x6868, 0x6868, 0x6868, 0 },
+	{ 0x6969, 0x6969, 0x6969, 0 },
+	{ 0x6a6a, 0x6a6a, 0x6a6a, 0 },
+	{ 0x6b6b, 0x6b6b, 0x6b6b, 0 },
+	{ 0x6c6c, 0x6c6c, 0x6c6c, 0 },
+	{ 0x6d6d, 0x6d6d, 0x6d6d, 0 },
+	{ 0x6e6e, 0x6e6e, 0x6e6e, 0 },
+	{ 0x6f6f, 0x6f6f, 0x6f6f, 0 },
+	{ 0x7070, 0x7070, 0x7070, 0 },
+	{ 0x7171, 0x7171, 0x7171, 0 },
+	{ 0x7272, 0x7272, 0x7272, 0 },
+	{ 0x7373, 0x7373, 0x7373, 0 },
+	{ 0x7474, 0x7474, 0x7474, 0 },
+	{ 0x7575, 0x7575, 0x7575, 0 },
+	{ 0x7676, 0x7676, 0x7676, 0 },
+	{ 0x7777, 0x7777, 0x7777, 0 },
+	{ 0x7878, 0x7878, 0x7878, 0 },
+	{ 0x7979, 0x7979, 0x7979, 0 },
+	{ 0x7a7a, 0x7a7a, 0x7a7a, 0 },
+	{ 0x7b7b, 0x7b7b, 0x7b7b, 0 },
+	{ 0x7c7c, 0x7c7c, 0x7c7c, 0 },
+	{ 0x7d7d, 0x7d7d, 0x7d7d, 0 },
+	{ 0x7e7e, 0x7e7e, 0x7e7e, 0 },
+	{ 0x7f7f, 0x7f7f, 0x7f7f, 0 },
+	{ 0x8080, 0x8080, 0x8080, 0 },
+	{ 0x8181, 0x8181, 0x8181, 0 },
+	{ 0x8282, 0x8282, 0x8282, 0 },
+	{ 0x8383, 0x8383, 0x8383, 0 },
+	{ 0x8484, 0x8484, 0x8484, 0 },
+	{ 0x8585, 0x8585, 0x8585, 0 },
+	{ 0x8686, 0x8686, 0x8686, 0 },
+	{ 0x8787, 0x8787, 0x8787, 0 },
+	{ 0x8888, 0x8888, 0x8888, 0 },
+	{ 0x8989, 0x8989, 0x8989, 0 },
+	{ 0x8a8a, 0x8a8a, 0x8a8a, 0 },
+	{ 0x8b8b, 0x8b8b, 0x8b8b, 0 },
+	{ 0x8c8c, 0x8c8c, 0x8c8c, 0 },
+	{ 0x8d8d, 0x8d8d, 0x8d8d, 0 },
+	{ 0x8e8e, 0x8e8e, 0x8e8e, 0 },
+	{ 0x8f8f, 0x8f8f, 0x8f8f, 0 },
+	{ 0x9090, 0x9090, 0x9090, 0 },
+	{ 0x9191, 0x9191, 0x9191, 0 },
+	{ 0x9292, 0x9292, 0x9292, 0 },
+	{ 0x9393, 0x9393, 0x9393, 0 },
+	{ 0x9494, 0x9494, 0x9494, 0 },
+	{ 0x9595, 0x9595, 0x9595, 0 },
+	{ 0x9696, 0x9696, 0x9696, 0 },
+	{ 0x9797, 0x9797, 0x9797, 0 },
+	{ 0x9898, 0x9898, 0x9898, 0 },
+	{ 0x9999, 0x9999, 0x9999, 0 },
+	{ 0x9a9a, 0x9a9a, 0x9a9a, 0 },
+	{ 0x9b9b, 0x9b9b, 0x9b9b, 0 },
+	{ 0x9c9c, 0x9c9c, 0x9c9c, 0 },
+	{ 0x9d9d, 0x9d9d, 0x9d9d, 0 },
+	{ 0x9e9e, 0x9e9e, 0x9e9e, 0 },
+	{ 0x9f9f, 0x9f9f, 0x9f9f, 0 },
+	{ 0xa0a0, 0xa0a0, 0xa0a0, 0 },
+	{ 0xa1a1, 0xa1a1, 0xa1a1, 0 },
+	{ 0xa2a2, 0xa2a2, 0xa2a2, 0 },
+	{ 0xa3a3, 0xa3a3, 0xa3a3, 0 },
+	{ 0xa4a4, 0xa4a4, 0xa4a4, 0 },
+	{ 0xa5a5, 0xa5a5, 0xa5a5, 0 },
+	{ 0xa6a6, 0xa6a6, 0xa6a6, 0 },
+	{ 0xa7a7, 0xa7a7, 0xa7a7, 0 },
+	{ 0xa8a8, 0xa8a8, 0xa8a8, 0 },
+	{ 0xa9a9, 0xa9a9, 0xa9a9, 0 },
+	{ 0xaaaa, 0xaaaa, 0xaaaa, 0 },
+	{ 0xabab, 0xabab, 0xabab, 0 },
+	{ 0xacac, 0xacac, 0xacac, 0 },
+	{ 0xadad, 0xadad, 0xadad, 0 },
+	{ 0xaeae, 0xaeae, 0xaeae, 0 },
+	{ 0xafaf, 0xafaf, 0xafaf, 0 },
+	{ 0xb0b0, 0xb0b0, 0xb0b0, 0 },
+	{ 0xb1b1, 0xb1b1, 0xb1b1, 0 },
+	{ 0xb2b2, 0xb2b2, 0xb2b2, 0 },
+	{ 0xb3b3, 0xb3b3, 0xb3b3, 0 },
+	{ 0xb4b4, 0xb4b4, 0xb4b4, 0 },
+	{ 0xb5b5, 0xb5b5, 0xb5b5, 0 },
+	{ 0xb6b6, 0xb6b6, 0xb6b6, 0 },
+	{ 0xb7b7, 0xb7b7, 0xb7b7, 0 },
+	{ 0xb8b8, 0xb8b8, 0xb8b8, 0 },
+	{ 0xb9b9, 0xb9b9, 0xb9b9, 0 },
+	{ 0xbaba, 0xbaba, 0xbaba, 0 },
+	{ 0xbbbb, 0xbbbb, 0xbbbb, 0 },
+	{ 0xbcbc, 0xbcbc, 0xbcbc, 0 },
+	{ 0xbdbd, 0xbdbd, 0xbdbd, 0 },
+	{ 0xbebe, 0xbebe, 0xbebe, 0 },
+	{ 0xbfbf, 0xbfbf, 0xbfbf, 0 },
+	{ 0xc0c0, 0xc0c0, 0xc0c0, 0 },
+	{ 0xc1c1, 0xc1c1, 0xc1c1, 0 },
+	{ 0xc2c2, 0xc2c2, 0xc2c2, 0 },
+	{ 0xc3c3, 0xc3c3, 0xc3c3, 0 },
+	{ 0xc4c4, 0xc4c4, 0xc4c4, 0 },
+	{ 0xc5c5, 0xc5c5, 0xc5c5, 0 },
+	{ 0xc6c6, 0xc6c6, 0xc6c6, 0 },
+	{ 0xc7c7, 0xc7c7, 0xc7c7, 0 },
+	{ 0xc8c8, 0xc8c8, 0xc8c8, 0 },
+	{ 0xc9c9, 0xc9c9, 0xc9c9, 0 },
+	{ 0xcaca, 0xcaca, 0xcaca, 0 },
+	{ 0xcbcb, 0xcbcb, 0xcbcb, 0 },
+	{ 0xcccc, 0xcccc, 0xcccc, 0 },
+	{ 0xcdcd, 0xcdcd, 0xcdcd, 0 },
+	{ 0xcece, 0xcece, 0xcece, 0 },
+	{ 0xcfcf, 0xcfcf, 0xcfcf, 0 },
+	{ 0xd0d0, 0xd0d0, 0xd0d0, 0 },
+	{ 0xd1d1, 0xd1d1, 0xd1d1, 0 },
+	{ 0xd2d2, 0xd2d2, 0xd2d2, 0 },
+	{ 0xd3d3, 0xd3d3, 0xd3d3, 0 },
+	{ 0xd4d4, 0xd4d4, 0xd4d4, 0 },
+	{ 0xd5d5, 0xd5d5, 0xd5d5, 0 },
+	{ 0xd6d6, 0xd6d6, 0xd6d6, 0 },
+	{ 0xd7d7, 0xd7d7, 0xd7d7, 0 },
+	{ 0xd8d8, 0xd8d8, 0xd8d8, 0 },
+	{ 0xd9d9, 0xd9d9, 0xd9d9, 0 },
+	{ 0xdada, 0xdada, 0xdada, 0 },
+	{ 0xdbdb, 0xdbdb, 0xdbdb, 0 },
+	{ 0xdcdc, 0xdcdc, 0xdcdc, 0 },
+	{ 0xdddd, 0xdddd, 0xdddd, 0 },
+	{ 0xdede, 0xdede, 0xdede, 0 },
+	{ 0xdfdf, 0xdfdf, 0xdfdf, 0 },
+	{ 0xe0e0, 0xe0e0, 0xe0e0, 0 },
+	{ 0xe1e1, 0xe1e1, 0xe1e1, 0 },
+	{ 0xe2e2, 0xe2e2, 0xe2e2, 0 },
+	{ 0xe3e3, 0xe3e3, 0xe3e3, 0 },
+	{ 0xe4e4, 0xe4e4, 0xe4e4, 0 },
+	{ 0xe5e5, 0xe5e5, 0xe5e5, 0 },
+	{ 0xe6e6, 0xe6e6, 0xe6e6, 0 },
+	{ 0xe7e7, 0xe7e7, 0xe7e7, 0 },
+	{ 0xe8e8, 0xe8e8, 0xe8e8, 0 },
+	{ 0xe9e9, 0xe9e9, 0xe9e9, 0 },
+	{ 0xeaea, 0xeaea, 0xeaea, 0 },
+	{ 0xebeb, 0xebeb, 0xebeb, 0 },
+	{ 0xecec, 0xecec, 0xecec, 0 },
+	{ 0xeded, 0xeded, 0xeded, 0 },
+	{ 0xeeee, 0xeeee, 0xeeee, 0 },
+	{ 0xefef, 0xefef, 0xefef, 0 },
+	{ 0xf0f0, 0xf0f0, 0xf0f0, 0 },
+	{ 0xf1f1, 0xf1f1, 0xf1f1, 0 },
+	{ 0xf2f2, 0xf2f2, 0xf2f2, 0 },
+	{ 0xf3f3, 0xf3f3, 0xf3f3, 0 },
+	{ 0xf4f4, 0xf4f4, 0xf4f4, 0 },
+	{ 0xf5f5, 0xf5f5, 0xf5f5, 0 },
+	{ 0xf6f6, 0xf6f6, 0xf6f6, 0 },
+	{ 0xf7f7, 0xf7f7, 0xf7f7, 0 },
+	{ 0xf8f8, 0xf8f8, 0xf8f8, 0 },
+	{ 0xf9f9, 0xf9f9, 0xf9f9, 0 },
+	{ 0xfafa, 0xfafa, 0xfafa, 0 },
+	{ 0xfbfb, 0xfbfb, 0xfbfb, 0 },
+	{ 0xfcfc, 0xfcfc, 0xfcfc, 0 },
+	{ 0xfdfd, 0xfdfd, 0xfdfd, 0 },
+	{ 0xfefe, 0xfefe, 0xfefe, 0 },
+	{ 0xffff, 0xffff, 0xffff, 0 },
+};
+
+const struct vkms_color_lut linear_eotf = {
+	.base = linear_array,
+	.lut_length = LUT_SIZE,
+	.channel_value2index_ratio = 0xff00ffll
+};
+
+
+static struct drm_color_lut srgb_array[LUT_SIZE] = {
+	{ 0x0, 0x0, 0x0, 0 },
+	{ 0x13, 0x13, 0x13, 0 },
+	{ 0x27, 0x27, 0x27, 0 },
+	{ 0x3b, 0x3b, 0x3b, 0 },
+	{ 0x4f, 0x4f, 0x4f, 0 },
+	{ 0x63, 0x63, 0x63, 0 },
+	{ 0x77, 0x77, 0x77, 0 },
+	{ 0x8b, 0x8b, 0x8b, 0 },
+	{ 0x9f, 0x9f, 0x9f, 0 },
+	{ 0xb3, 0xb3, 0xb3, 0 },
+	{ 0xc6, 0xc6, 0xc6, 0 },
+	{ 0xdb, 0xdb, 0xdb, 0 },
+	{ 0xf0, 0xf0, 0xf0, 0 },
+	{ 0x107, 0x107, 0x107, 0 },
+	{ 0x11f, 0x11f, 0x11f, 0 },
+	{ 0x139, 0x139, 0x139, 0 },
+	{ 0x153, 0x153, 0x153, 0 },
+	{ 0x16f, 0x16f, 0x16f, 0 },
+	{ 0x18c, 0x18c, 0x18c, 0 },
+	{ 0x1aa, 0x1aa, 0x1aa, 0 },
+	{ 0x1ca, 0x1ca, 0x1ca, 0 },
+	{ 0x1eb, 0x1eb, 0x1eb, 0 },
+	{ 0x20d, 0x20d, 0x20d, 0 },
+	{ 0x231, 0x231, 0x231, 0 },
+	{ 0x256, 0x256, 0x256, 0 },
+	{ 0x27d, 0x27d, 0x27d, 0 },
+	{ 0x2a4, 0x2a4, 0x2a4, 0 },
+	{ 0x2ce, 0x2ce, 0x2ce, 0 },
+	{ 0x2f9, 0x2f9, 0x2f9, 0 },
+	{ 0x325, 0x325, 0x325, 0 },
+	{ 0x352, 0x352, 0x352, 0 },
+	{ 0x381, 0x381, 0x381, 0 },
+	{ 0x3b2, 0x3b2, 0x3b2, 0 },
+	{ 0x3e4, 0x3e4, 0x3e4, 0 },
+	{ 0x418, 0x418, 0x418, 0 },
+	{ 0x44d, 0x44d, 0x44d, 0 },
+	{ 0x484, 0x484, 0x484, 0 },
+	{ 0x4bc, 0x4bc, 0x4bc, 0 },
+	{ 0x4f6, 0x4f6, 0x4f6, 0 },
+	{ 0x531, 0x531, 0x531, 0 },
+	{ 0x56e, 0x56e, 0x56e, 0 },
+	{ 0x5ad, 0x5ad, 0x5ad, 0 },
+	{ 0x5ed, 0x5ed, 0x5ed, 0 },
+	{ 0x62f, 0x62f, 0x62f, 0 },
+	{ 0x672, 0x672, 0x672, 0 },
+	{ 0x6b7, 0x6b7, 0x6b7, 0 },
+	{ 0x6fe, 0x6fe, 0x6fe, 0 },
+	{ 0x746, 0x746, 0x746, 0 },
+	{ 0x791, 0x791, 0x791, 0 },
+	{ 0x7dc, 0x7dc, 0x7dc, 0 },
+	{ 0x82a, 0x82a, 0x82a, 0 },
+	{ 0x879, 0x879, 0x879, 0 },
+	{ 0x8ca, 0x8ca, 0x8ca, 0 },
+	{ 0x91d, 0x91d, 0x91d, 0 },
+	{ 0x971, 0x971, 0x971, 0 },
+	{ 0x9c7, 0x9c7, 0x9c7, 0 },
+	{ 0xa1f, 0xa1f, 0xa1f, 0 },
+	{ 0xa79, 0xa79, 0xa79, 0 },
+	{ 0xad4, 0xad4, 0xad4, 0 },
+	{ 0xb32, 0xb32, 0xb32, 0 },
+	{ 0xb91, 0xb91, 0xb91, 0 },
+	{ 0xbf2, 0xbf2, 0xbf2, 0 },
+	{ 0xc54, 0xc54, 0xc54, 0 },
+	{ 0xcb9, 0xcb9, 0xcb9, 0 },
+	{ 0xd1f, 0xd1f, 0xd1f, 0 },
+	{ 0xd88, 0xd88, 0xd88, 0 },
+	{ 0xdf2, 0xdf2, 0xdf2, 0 },
+	{ 0xe5e, 0xe5e, 0xe5e, 0 },
+	{ 0xecc, 0xecc, 0xecc, 0 },
+	{ 0xf3c, 0xf3c, 0xf3c, 0 },
+	{ 0xfad, 0xfad, 0xfad, 0 },
+	{ 0x1021, 0x1021, 0x1021, 0 },
+	{ 0x1096, 0x1096, 0x1096, 0 },
+	{ 0x110e, 0x110e, 0x110e, 0 },
+	{ 0x1187, 0x1187, 0x1187, 0 },
+	{ 0x1203, 0x1203, 0x1203, 0 },
+	{ 0x1280, 0x1280, 0x1280, 0 },
+	{ 0x12ff, 0x12ff, 0x12ff, 0 },
+	{ 0x1380, 0x1380, 0x1380, 0 },
+	{ 0x1404, 0x1404, 0x1404, 0 },
+	{ 0x1489, 0x1489, 0x1489, 0 },
+	{ 0x1510, 0x1510, 0x1510, 0 },
+	{ 0x1599, 0x1599, 0x1599, 0 },
+	{ 0x1624, 0x1624, 0x1624, 0 },
+	{ 0x16b2, 0x16b2, 0x16b2, 0 },
+	{ 0x1741, 0x1741, 0x1741, 0 },
+	{ 0x17d2, 0x17d2, 0x17d2, 0 },
+	{ 0x1865, 0x1865, 0x1865, 0 },
+	{ 0x18fb, 0x18fb, 0x18fb, 0 },
+	{ 0x1992, 0x1992, 0x1992, 0 },
+	{ 0x1a2c, 0x1a2c, 0x1a2c, 0 },
+	{ 0x1ac8, 0x1ac8, 0x1ac8, 0 },
+	{ 0x1b65, 0x1b65, 0x1b65, 0 },
+	{ 0x1c05, 0x1c05, 0x1c05, 0 },
+	{ 0x1ca7, 0x1ca7, 0x1ca7, 0 },
+	{ 0x1d4b, 0x1d4b, 0x1d4b, 0 },
+	{ 0x1df1, 0x1df1, 0x1df1, 0 },
+	{ 0x1e99, 0x1e99, 0x1e99, 0 },
+	{ 0x1f44, 0x1f44, 0x1f44, 0 },
+	{ 0x1ff0, 0x1ff0, 0x1ff0, 0 },
+	{ 0x209f, 0x209f, 0x209f, 0 },
+	{ 0x2150, 0x2150, 0x2150, 0 },
+	{ 0x2203, 0x2203, 0x2203, 0 },
+	{ 0x22b8, 0x22b8, 0x22b8, 0 },
+	{ 0x2370, 0x2370, 0x2370, 0 },
+	{ 0x2429, 0x2429, 0x2429, 0 },
+	{ 0x24e5, 0x24e5, 0x24e5, 0 },
+	{ 0x25a3, 0x25a3, 0x25a3, 0 },
+	{ 0x2663, 0x2663, 0x2663, 0 },
+	{ 0x2726, 0x2726, 0x2726, 0 },
+	{ 0x27ea, 0x27ea, 0x27ea, 0 },
+	{ 0x28b1, 0x28b1, 0x28b1, 0 },
+	{ 0x297a, 0x297a, 0x297a, 0 },
+	{ 0x2a45, 0x2a45, 0x2a45, 0 },
+	{ 0x2b13, 0x2b13, 0x2b13, 0 },
+	{ 0x2be3, 0x2be3, 0x2be3, 0 },
+	{ 0x2cb5, 0x2cb5, 0x2cb5, 0 },
+	{ 0x2d89, 0x2d89, 0x2d89, 0 },
+	{ 0x2e60, 0x2e60, 0x2e60, 0 },
+	{ 0x2f39, 0x2f39, 0x2f39, 0 },
+	{ 0x3014, 0x3014, 0x3014, 0 },
+	{ 0x30f2, 0x30f2, 0x30f2, 0 },
+	{ 0x31d2, 0x31d2, 0x31d2, 0 },
+	{ 0x32b4, 0x32b4, 0x32b4, 0 },
+	{ 0x3398, 0x3398, 0x3398, 0 },
+	{ 0x347f, 0x347f, 0x347f, 0 },
+	{ 0x3569, 0x3569, 0x3569, 0 },
+	{ 0x3654, 0x3654, 0x3654, 0 },
+	{ 0x3742, 0x3742, 0x3742, 0 },
+	{ 0x3832, 0x3832, 0x3832, 0 },
+	{ 0x3925, 0x3925, 0x3925, 0 },
+	{ 0x3a1a, 0x3a1a, 0x3a1a, 0 },
+	{ 0x3b11, 0x3b11, 0x3b11, 0 },
+	{ 0x3c0b, 0x3c0b, 0x3c0b, 0 },
+	{ 0x3d07, 0x3d07, 0x3d07, 0 },
+	{ 0x3e05, 0x3e05, 0x3e05, 0 },
+	{ 0x3f06, 0x3f06, 0x3f06, 0 },
+	{ 0x400a, 0x400a, 0x400a, 0 },
+	{ 0x410f, 0x410f, 0x410f, 0 },
+	{ 0x4218, 0x4218, 0x4218, 0 },
+	{ 0x4322, 0x4322, 0x4322, 0 },
+	{ 0x442f, 0x442f, 0x442f, 0 },
+	{ 0x453f, 0x453f, 0x453f, 0 },
+	{ 0x4650, 0x4650, 0x4650, 0 },
+	{ 0x4765, 0x4765, 0x4765, 0 },
+	{ 0x487c, 0x487c, 0x487c, 0 },
+	{ 0x4995, 0x4995, 0x4995, 0 },
+	{ 0x4ab1, 0x4ab1, 0x4ab1, 0 },
+	{ 0x4bcf, 0x4bcf, 0x4bcf, 0 },
+	{ 0x4cf0, 0x4cf0, 0x4cf0, 0 },
+	{ 0x4e13, 0x4e13, 0x4e13, 0 },
+	{ 0x4f39, 0x4f39, 0x4f39, 0 },
+	{ 0x5061, 0x5061, 0x5061, 0 },
+	{ 0x518b, 0x518b, 0x518b, 0 },
+	{ 0x52b9, 0x52b9, 0x52b9, 0 },
+	{ 0x53e8, 0x53e8, 0x53e8, 0 },
+	{ 0x551b, 0x551b, 0x551b, 0 },
+	{ 0x5650, 0x5650, 0x5650, 0 },
+	{ 0x5787, 0x5787, 0x5787, 0 },
+	{ 0x58c1, 0x58c1, 0x58c1, 0 },
+	{ 0x59fd, 0x59fd, 0x59fd, 0 },
+	{ 0x5b3c, 0x5b3c, 0x5b3c, 0 },
+	{ 0x5c7e, 0x5c7e, 0x5c7e, 0 },
+	{ 0x5dc2, 0x5dc2, 0x5dc2, 0 },
+	{ 0x5f09, 0x5f09, 0x5f09, 0 },
+	{ 0x6052, 0x6052, 0x6052, 0 },
+	{ 0x619e, 0x619e, 0x619e, 0 },
+	{ 0x62ec, 0x62ec, 0x62ec, 0 },
+	{ 0x643d, 0x643d, 0x643d, 0 },
+	{ 0x6591, 0x6591, 0x6591, 0 },
+	{ 0x66e7, 0x66e7, 0x66e7, 0 },
+	{ 0x6840, 0x6840, 0x6840, 0 },
+	{ 0x699b, 0x699b, 0x699b, 0 },
+	{ 0x6afa, 0x6afa, 0x6afa, 0 },
+	{ 0x6c5a, 0x6c5a, 0x6c5a, 0 },
+	{ 0x6dbe, 0x6dbe, 0x6dbe, 0 },
+	{ 0x6f24, 0x6f24, 0x6f24, 0 },
+	{ 0x708c, 0x708c, 0x708c, 0 },
+	{ 0x71f8, 0x71f8, 0x71f8, 0 },
+	{ 0x7366, 0x7366, 0x7366, 0 },
+	{ 0x74d6, 0x74d6, 0x74d6, 0 },
+	{ 0x764a, 0x764a, 0x764a, 0 },
+	{ 0x77c0, 0x77c0, 0x77c0, 0 },
+	{ 0x7938, 0x7938, 0x7938, 0 },
+	{ 0x7ab4, 0x7ab4, 0x7ab4, 0 },
+	{ 0x7c32, 0x7c32, 0x7c32, 0 },
+	{ 0x7db3, 0x7db3, 0x7db3, 0 },
+	{ 0x7f36, 0x7f36, 0x7f36, 0 },
+	{ 0x80bc, 0x80bc, 0x80bc, 0 },
+	{ 0x8245, 0x8245, 0x8245, 0 },
+	{ 0x83d1, 0x83d1, 0x83d1, 0 },
+	{ 0x855f, 0x855f, 0x855f, 0 },
+	{ 0x86f0, 0x86f0, 0x86f0, 0 },
+	{ 0x8884, 0x8884, 0x8884, 0 },
+	{ 0x8a1a, 0x8a1a, 0x8a1a, 0 },
+	{ 0x8bb4, 0x8bb4, 0x8bb4, 0 },
+	{ 0x8d50, 0x8d50, 0x8d50, 0 },
+	{ 0x8eee, 0x8eee, 0x8eee, 0 },
+	{ 0x9090, 0x9090, 0x9090, 0 },
+	{ 0x9234, 0x9234, 0x9234, 0 },
+	{ 0x93db, 0x93db, 0x93db, 0 },
+	{ 0x9585, 0x9585, 0x9585, 0 },
+	{ 0x9732, 0x9732, 0x9732, 0 },
+	{ 0x98e1, 0x98e1, 0x98e1, 0 },
+	{ 0x9a93, 0x9a93, 0x9a93, 0 },
+	{ 0x9c48, 0x9c48, 0x9c48, 0 },
+	{ 0x9e00, 0x9e00, 0x9e00, 0 },
+	{ 0x9fbb, 0x9fbb, 0x9fbb, 0 },
+	{ 0xa178, 0xa178, 0xa178, 0 },
+	{ 0xa338, 0xa338, 0xa338, 0 },
+	{ 0xa4fb, 0xa4fb, 0xa4fb, 0 },
+	{ 0xa6c1, 0xa6c1, 0xa6c1, 0 },
+	{ 0xa88a, 0xa88a, 0xa88a, 0 },
+	{ 0xaa56, 0xaa56, 0xaa56, 0 },
+	{ 0xac24, 0xac24, 0xac24, 0 },
+	{ 0xadf5, 0xadf5, 0xadf5, 0 },
+	{ 0xafc9, 0xafc9, 0xafc9, 0 },
+	{ 0xb1a0, 0xb1a0, 0xb1a0, 0 },
+	{ 0xb37a, 0xb37a, 0xb37a, 0 },
+	{ 0xb557, 0xb557, 0xb557, 0 },
+	{ 0xb736, 0xb736, 0xb736, 0 },
+	{ 0xb919, 0xb919, 0xb919, 0 },
+	{ 0xbafe, 0xbafe, 0xbafe, 0 },
+	{ 0xbce6, 0xbce6, 0xbce6, 0 },
+	{ 0xbed2, 0xbed2, 0xbed2, 0 },
+	{ 0xc0c0, 0xc0c0, 0xc0c0, 0 },
+	{ 0xc2b0, 0xc2b0, 0xc2b0, 0 },
+	{ 0xc4a4, 0xc4a4, 0xc4a4, 0 },
+	{ 0xc69b, 0xc69b, 0xc69b, 0 },
+	{ 0xc895, 0xc895, 0xc895, 0 },
+	{ 0xca91, 0xca91, 0xca91, 0 },
+	{ 0xcc91, 0xcc91, 0xcc91, 0 },
+	{ 0xce93, 0xce93, 0xce93, 0 },
+	{ 0xd098, 0xd098, 0xd098, 0 },
+	{ 0xd2a1, 0xd2a1, 0xd2a1, 0 },
+	{ 0xd4ac, 0xd4ac, 0xd4ac, 0 },
+	{ 0xd6ba, 0xd6ba, 0xd6ba, 0 },
+	{ 0xd8cb, 0xd8cb, 0xd8cb, 0 },
+	{ 0xdadf, 0xdadf, 0xdadf, 0 },
+	{ 0xdcf7, 0xdcf7, 0xdcf7, 0 },
+	{ 0xdf11, 0xdf11, 0xdf11, 0 },
+	{ 0xe12e, 0xe12e, 0xe12e, 0 },
+	{ 0xe34e, 0xe34e, 0xe34e, 0 },
+	{ 0xe571, 0xe571, 0xe571, 0 },
+	{ 0xe796, 0xe796, 0xe796, 0 },
+	{ 0xe9bf, 0xe9bf, 0xe9bf, 0 },
+	{ 0xebeb, 0xebeb, 0xebeb, 0 },
+	{ 0xee1a, 0xee1a, 0xee1a, 0 },
+	{ 0xf04c, 0xf04c, 0xf04c, 0 },
+	{ 0xf281, 0xf281, 0xf281, 0 },
+	{ 0xf4b9, 0xf4b9, 0xf4b9, 0 },
+	{ 0xf6f4, 0xf6f4, 0xf6f4, 0 },
+	{ 0xf932, 0xf932, 0xf932, 0 },
+	{ 0xfb73, 0xfb73, 0xfb73, 0 },
+	{ 0xfdb7, 0xfdb7, 0xfdb7, 0 },
+	{ 0xffff, 0xffff, 0xffff, 0 },
+};
+
+const struct vkms_color_lut srgb_eotf = {
+	.base = srgb_array,
+	.lut_length = LUT_SIZE,
+	.channel_value2index_ratio = 0xff00ffll
+};
+
+static struct drm_color_lut srgb_inv_array[LUT_SIZE] = {
+	{ 0x0, 0x0, 0x0, 0 },
+	{ 0xcc2, 0xcc2, 0xcc2, 0 },
+	{ 0x15be, 0x15be, 0x15be, 0 },
+	{ 0x1c56, 0x1c56, 0x1c56, 0 },
+	{ 0x21bd, 0x21bd, 0x21bd, 0 },
+	{ 0x2666, 0x2666, 0x2666, 0 },
+	{ 0x2a8a, 0x2a8a, 0x2a8a, 0 },
+	{ 0x2e4c, 0x2e4c, 0x2e4c, 0 },
+	{ 0x31c0, 0x31c0, 0x31c0, 0 },
+	{ 0x34f6, 0x34f6, 0x34f6, 0 },
+	{ 0x37f9, 0x37f9, 0x37f9, 0 },
+	{ 0x3acf, 0x3acf, 0x3acf, 0 },
+	{ 0x3d80, 0x3d80, 0x3d80, 0 },
+	{ 0x4010, 0x4010, 0x4010, 0 },
+	{ 0x4284, 0x4284, 0x4284, 0 },
+	{ 0x44dd, 0x44dd, 0x44dd, 0 },
+	{ 0x4720, 0x4720, 0x4720, 0 },
+	{ 0x494e, 0x494e, 0x494e, 0 },
+	{ 0x4b69, 0x4b69, 0x4b69, 0 },
+	{ 0x4d73, 0x4d73, 0x4d73, 0 },
+	{ 0x4f6e, 0x4f6e, 0x4f6e, 0 },
+	{ 0x5159, 0x5159, 0x5159, 0 },
+	{ 0x5337, 0x5337, 0x5337, 0 },
+	{ 0x5509, 0x5509, 0x5509, 0 },
+	{ 0x56cf, 0x56cf, 0x56cf, 0 },
+	{ 0x588a, 0x588a, 0x588a, 0 },
+	{ 0x5a3b, 0x5a3b, 0x5a3b, 0 },
+	{ 0x5be2, 0x5be2, 0x5be2, 0 },
+	{ 0x5d80, 0x5d80, 0x5d80, 0 },
+	{ 0x5f16, 0x5f16, 0x5f16, 0 },
+	{ 0x60a4, 0x60a4, 0x60a4, 0 },
+	{ 0x6229, 0x6229, 0x6229, 0 },
+	{ 0x63a8, 0x63a8, 0x63a8, 0 },
+	{ 0x6520, 0x6520, 0x6520, 0 },
+	{ 0x6691, 0x6691, 0x6691, 0 },
+	{ 0x67fc, 0x67fc, 0x67fc, 0 },
+	{ 0x6961, 0x6961, 0x6961, 0 },
+	{ 0x6ac0, 0x6ac0, 0x6ac0, 0 },
+	{ 0x6c19, 0x6c19, 0x6c19, 0 },
+	{ 0x6d6e, 0x6d6e, 0x6d6e, 0 },
+	{ 0x6ebd, 0x6ebd, 0x6ebd, 0 },
+	{ 0x7008, 0x7008, 0x7008, 0 },
+	{ 0x714d, 0x714d, 0x714d, 0 },
+	{ 0x728f, 0x728f, 0x728f, 0 },
+	{ 0x73cc, 0x73cc, 0x73cc, 0 },
+	{ 0x7504, 0x7504, 0x7504, 0 },
+	{ 0x7639, 0x7639, 0x7639, 0 },
+	{ 0x776a, 0x776a, 0x776a, 0 },
+	{ 0x7897, 0x7897, 0x7897, 0 },
+	{ 0x79c1, 0x79c1, 0x79c1, 0 },
+	{ 0x7ae7, 0x7ae7, 0x7ae7, 0 },
+	{ 0x7c09, 0x7c09, 0x7c09, 0 },
+	{ 0x7d28, 0x7d28, 0x7d28, 0 },
+	{ 0x7e44, 0x7e44, 0x7e44, 0 },
+	{ 0x7f5d, 0x7f5d, 0x7f5d, 0 },
+	{ 0x8073, 0x8073, 0x8073, 0 },
+	{ 0x8186, 0x8186, 0x8186, 0 },
+	{ 0x8296, 0x8296, 0x8296, 0 },
+	{ 0x83a4, 0x83a4, 0x83a4, 0 },
+	{ 0x84ae, 0x84ae, 0x84ae, 0 },
+	{ 0x85b6, 0x85b6, 0x85b6, 0 },
+	{ 0x86bc, 0x86bc, 0x86bc, 0 },
+	{ 0x87bf, 0x87bf, 0x87bf, 0 },
+	{ 0x88bf, 0x88bf, 0x88bf, 0 },
+	{ 0x89be, 0x89be, 0x89be, 0 },
+	{ 0x8ab9, 0x8ab9, 0x8ab9, 0 },
+	{ 0x8bb3, 0x8bb3, 0x8bb3, 0 },
+	{ 0x8cab, 0x8cab, 0x8cab, 0 },
+	{ 0x8da0, 0x8da0, 0x8da0, 0 },
+	{ 0x8e93, 0x8e93, 0x8e93, 0 },
+	{ 0x8f84, 0x8f84, 0x8f84, 0 },
+	{ 0x9073, 0x9073, 0x9073, 0 },
+	{ 0x9161, 0x9161, 0x9161, 0 },
+	{ 0x924c, 0x924c, 0x924c, 0 },
+	{ 0x9335, 0x9335, 0x9335, 0 },
+	{ 0x941d, 0x941d, 0x941d, 0 },
+	{ 0x9503, 0x9503, 0x9503, 0 },
+	{ 0x95e7, 0x95e7, 0x95e7, 0 },
+	{ 0x96c9, 0x96c9, 0x96c9, 0 },
+	{ 0x97aa, 0x97aa, 0x97aa, 0 },
+	{ 0x9889, 0x9889, 0x9889, 0 },
+	{ 0x9966, 0x9966, 0x9966, 0 },
+	{ 0x9a42, 0x9a42, 0x9a42, 0 },
+	{ 0x9b1c, 0x9b1c, 0x9b1c, 0 },
+	{ 0x9bf5, 0x9bf5, 0x9bf5, 0 },
+	{ 0x9ccc, 0x9ccc, 0x9ccc, 0 },
+	{ 0x9da1, 0x9da1, 0x9da1, 0 },
+	{ 0x9e76, 0x9e76, 0x9e76, 0 },
+	{ 0x9f49, 0x9f49, 0x9f49, 0 },
+	{ 0xa01a, 0xa01a, 0xa01a, 0 },
+	{ 0xa0ea, 0xa0ea, 0xa0ea, 0 },
+	{ 0xa1b9, 0xa1b9, 0xa1b9, 0 },
+	{ 0xa286, 0xa286, 0xa286, 0 },
+	{ 0xa352, 0xa352, 0xa352, 0 },
+	{ 0xa41d, 0xa41d, 0xa41d, 0 },
+	{ 0xa4e7, 0xa4e7, 0xa4e7, 0 },
+	{ 0xa5af, 0xa5af, 0xa5af, 0 },
+	{ 0xa676, 0xa676, 0xa676, 0 },
+	{ 0xa73c, 0xa73c, 0xa73c, 0 },
+	{ 0xa801, 0xa801, 0xa801, 0 },
+	{ 0xa8c5, 0xa8c5, 0xa8c5, 0 },
+	{ 0xa987, 0xa987, 0xa987, 0 },
+	{ 0xaa48, 0xaa48, 0xaa48, 0 },
+	{ 0xab09, 0xab09, 0xab09, 0 },
+	{ 0xabc8, 0xabc8, 0xabc8, 0 },
+	{ 0xac86, 0xac86, 0xac86, 0 },
+	{ 0xad43, 0xad43, 0xad43, 0 },
+	{ 0xadff, 0xadff, 0xadff, 0 },
+	{ 0xaeba, 0xaeba, 0xaeba, 0 },
+	{ 0xaf74, 0xaf74, 0xaf74, 0 },
+	{ 0xb02d, 0xb02d, 0xb02d, 0 },
+	{ 0xb0e5, 0xb0e5, 0xb0e5, 0 },
+	{ 0xb19c, 0xb19c, 0xb19c, 0 },
+	{ 0xb252, 0xb252, 0xb252, 0 },
+	{ 0xb307, 0xb307, 0xb307, 0 },
+	{ 0xb3bb, 0xb3bb, 0xb3bb, 0 },
+	{ 0xb46f, 0xb46f, 0xb46f, 0 },
+	{ 0xb521, 0xb521, 0xb521, 0 },
+	{ 0xb5d3, 0xb5d3, 0xb5d3, 0 },
+	{ 0xb683, 0xb683, 0xb683, 0 },
+	{ 0xb733, 0xb733, 0xb733, 0 },
+	{ 0xb7e2, 0xb7e2, 0xb7e2, 0 },
+	{ 0xb890, 0xb890, 0xb890, 0 },
+	{ 0xb93d, 0xb93d, 0xb93d, 0 },
+	{ 0xb9ea, 0xb9ea, 0xb9ea, 0 },
+	{ 0xba96, 0xba96, 0xba96, 0 },
+	{ 0xbb40, 0xbb40, 0xbb40, 0 },
+	{ 0xbbea, 0xbbea, 0xbbea, 0 },
+	{ 0xbc94, 0xbc94, 0xbc94, 0 },
+	{ 0xbd3c, 0xbd3c, 0xbd3c, 0 },
+	{ 0xbde4, 0xbde4, 0xbde4, 0 },
+	{ 0xbe8b, 0xbe8b, 0xbe8b, 0 },
+	{ 0xbf31, 0xbf31, 0xbf31, 0 },
+	{ 0xbfd7, 0xbfd7, 0xbfd7, 0 },
+	{ 0xc07b, 0xc07b, 0xc07b, 0 },
+	{ 0xc120, 0xc120, 0xc120, 0 },
+	{ 0xc1c3, 0xc1c3, 0xc1c3, 0 },
+	{ 0xc266, 0xc266, 0xc266, 0 },
+	{ 0xc308, 0xc308, 0xc308, 0 },
+	{ 0xc3a9, 0xc3a9, 0xc3a9, 0 },
+	{ 0xc449, 0xc449, 0xc449, 0 },
+	{ 0xc4e9, 0xc4e9, 0xc4e9, 0 },
+	{ 0xc589, 0xc589, 0xc589, 0 },
+	{ 0xc627, 0xc627, 0xc627, 0 },
+	{ 0xc6c5, 0xc6c5, 0xc6c5, 0 },
+	{ 0xc763, 0xc763, 0xc763, 0 },
+	{ 0xc7ff, 0xc7ff, 0xc7ff, 0 },
+	{ 0xc89b, 0xc89b, 0xc89b, 0 },
+	{ 0xc937, 0xc937, 0xc937, 0 },
+	{ 0xc9d2, 0xc9d2, 0xc9d2, 0 },
+	{ 0xca6c, 0xca6c, 0xca6c, 0 },
+	{ 0xcb06, 0xcb06, 0xcb06, 0 },
+	{ 0xcb9f, 0xcb9f, 0xcb9f, 0 },
+	{ 0xcc37, 0xcc37, 0xcc37, 0 },
+	{ 0xcccf, 0xcccf, 0xcccf, 0 },
+	{ 0xcd66, 0xcd66, 0xcd66, 0 },
+	{ 0xcdfd, 0xcdfd, 0xcdfd, 0 },
+	{ 0xce93, 0xce93, 0xce93, 0 },
+	{ 0xcf29, 0xcf29, 0xcf29, 0 },
+	{ 0xcfbe, 0xcfbe, 0xcfbe, 0 },
+	{ 0xd053, 0xd053, 0xd053, 0 },
+	{ 0xd0e7, 0xd0e7, 0xd0e7, 0 },
+	{ 0xd17a, 0xd17a, 0xd17a, 0 },
+	{ 0xd20d, 0xd20d, 0xd20d, 0 },
+	{ 0xd2a0, 0xd2a0, 0xd2a0, 0 },
+	{ 0xd331, 0xd331, 0xd331, 0 },
+	{ 0xd3c3, 0xd3c3, 0xd3c3, 0 },
+	{ 0xd454, 0xd454, 0xd454, 0 },
+	{ 0xd4e4, 0xd4e4, 0xd4e4, 0 },
+	{ 0xd574, 0xd574, 0xd574, 0 },
+	{ 0xd603, 0xd603, 0xd603, 0 },
+	{ 0xd692, 0xd692, 0xd692, 0 },
+	{ 0xd720, 0xd720, 0xd720, 0 },
+	{ 0xd7ae, 0xd7ae, 0xd7ae, 0 },
+	{ 0xd83c, 0xd83c, 0xd83c, 0 },
+	{ 0xd8c9, 0xd8c9, 0xd8c9, 0 },
+	{ 0xd955, 0xd955, 0xd955, 0 },
+	{ 0xd9e1, 0xd9e1, 0xd9e1, 0 },
+	{ 0xda6d, 0xda6d, 0xda6d, 0 },
+	{ 0xdaf8, 0xdaf8, 0xdaf8, 0 },
+	{ 0xdb83, 0xdb83, 0xdb83, 0 },
+	{ 0xdc0d, 0xdc0d, 0xdc0d, 0 },
+	{ 0xdc97, 0xdc97, 0xdc97, 0 },
+	{ 0xdd20, 0xdd20, 0xdd20, 0 },
+	{ 0xdda9, 0xdda9, 0xdda9, 0 },
+	{ 0xde31, 0xde31, 0xde31, 0 },
+	{ 0xdeb9, 0xdeb9, 0xdeb9, 0 },
+	{ 0xdf41, 0xdf41, 0xdf41, 0 },
+	{ 0xdfc8, 0xdfc8, 0xdfc8, 0 },
+	{ 0xe04f, 0xe04f, 0xe04f, 0 },
+	{ 0xe0d5, 0xe0d5, 0xe0d5, 0 },
+	{ 0xe15b, 0xe15b, 0xe15b, 0 },
+	{ 0xe1e0, 0xe1e0, 0xe1e0, 0 },
+	{ 0xe266, 0xe266, 0xe266, 0 },
+	{ 0xe2ea, 0xe2ea, 0xe2ea, 0 },
+	{ 0xe36f, 0xe36f, 0xe36f, 0 },
+	{ 0xe3f3, 0xe3f3, 0xe3f3, 0 },
+	{ 0xe476, 0xe476, 0xe476, 0 },
+	{ 0xe4f9, 0xe4f9, 0xe4f9, 0 },
+	{ 0xe57c, 0xe57c, 0xe57c, 0 },
+	{ 0xe5fe, 0xe5fe, 0xe5fe, 0 },
+	{ 0xe680, 0xe680, 0xe680, 0 },
+	{ 0xe702, 0xe702, 0xe702, 0 },
+	{ 0xe783, 0xe783, 0xe783, 0 },
+	{ 0xe804, 0xe804, 0xe804, 0 },
+	{ 0xe884, 0xe884, 0xe884, 0 },
+	{ 0xe905, 0xe905, 0xe905, 0 },
+	{ 0xe984, 0xe984, 0xe984, 0 },
+	{ 0xea04, 0xea04, 0xea04, 0 },
+	{ 0xea83, 0xea83, 0xea83, 0 },
+	{ 0xeb02, 0xeb02, 0xeb02, 0 },
+	{ 0xeb80, 0xeb80, 0xeb80, 0 },
+	{ 0xebfe, 0xebfe, 0xebfe, 0 },
+	{ 0xec7b, 0xec7b, 0xec7b, 0 },
+	{ 0xecf9, 0xecf9, 0xecf9, 0 },
+	{ 0xed76, 0xed76, 0xed76, 0 },
+	{ 0xedf2, 0xedf2, 0xedf2, 0 },
+	{ 0xee6f, 0xee6f, 0xee6f, 0 },
+	{ 0xeeeb, 0xeeeb, 0xeeeb, 0 },
+	{ 0xef66, 0xef66, 0xef66, 0 },
+	{ 0xefe2, 0xefe2, 0xefe2, 0 },
+	{ 0xf05d, 0xf05d, 0xf05d, 0 },
+	{ 0xf0d7, 0xf0d7, 0xf0d7, 0 },
+	{ 0xf152, 0xf152, 0xf152, 0 },
+	{ 0xf1cc, 0xf1cc, 0xf1cc, 0 },
+	{ 0xf245, 0xf245, 0xf245, 0 },
+	{ 0xf2bf, 0xf2bf, 0xf2bf, 0 },
+	{ 0xf338, 0xf338, 0xf338, 0 },
+	{ 0xf3b0, 0xf3b0, 0xf3b0, 0 },
+	{ 0xf429, 0xf429, 0xf429, 0 },
+	{ 0xf4a1, 0xf4a1, 0xf4a1, 0 },
+	{ 0xf519, 0xf519, 0xf519, 0 },
+	{ 0xf590, 0xf590, 0xf590, 0 },
+	{ 0xf608, 0xf608, 0xf608, 0 },
+	{ 0xf67e, 0xf67e, 0xf67e, 0 },
+	{ 0xf6f5, 0xf6f5, 0xf6f5, 0 },
+	{ 0xf76b, 0xf76b, 0xf76b, 0 },
+	{ 0xf7e1, 0xf7e1, 0xf7e1, 0 },
+	{ 0xf857, 0xf857, 0xf857, 0 },
+	{ 0xf8cd, 0xf8cd, 0xf8cd, 0 },
+	{ 0xf942, 0xf942, 0xf942, 0 },
+	{ 0xf9b7, 0xf9b7, 0xf9b7, 0 },
+	{ 0xfa2b, 0xfa2b, 0xfa2b, 0 },
+	{ 0xfaa0, 0xfaa0, 0xfaa0, 0 },
+	{ 0xfb14, 0xfb14, 0xfb14, 0 },
+	{ 0xfb88, 0xfb88, 0xfb88, 0 },
+	{ 0xfbfb, 0xfbfb, 0xfbfb, 0 },
+	{ 0xfc6e, 0xfc6e, 0xfc6e, 0 },
+	{ 0xfce1, 0xfce1, 0xfce1, 0 },
+	{ 0xfd54, 0xfd54, 0xfd54, 0 },
+	{ 0xfdc6, 0xfdc6, 0xfdc6, 0 },
+	{ 0xfe39, 0xfe39, 0xfe39, 0 },
+	{ 0xfeaa, 0xfeaa, 0xfeaa, 0 },
+	{ 0xff1c, 0xff1c, 0xff1c, 0 },
+	{ 0xff8d, 0xff8d, 0xff8d, 0 },
+	{ 0xffff, 0xffff, 0xffff, 0 },
+};
+
+const struct vkms_color_lut srgb_inv_eotf = {
+	.base = srgb_inv_array,
+	.lut_length = LUT_SIZE,
+	.channel_value2index_ratio = 0xff00ffll
+};
diff --git a/drivers/gpu/drm/vkms/vkms_luts.h b/drivers/gpu/drm/vkms/vkms_luts.h
new file mode 100644
index 000000000000..053512a643f7
--- /dev/null
+++ b/drivers/gpu/drm/vkms/vkms_luts.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+#ifndef _VKMS_LUTS_H_
+#define _VKMS_LUTS_H_
+
+#define LUT_SIZE 256
+
+extern const struct vkms_color_lut linear_eotf;
+extern const struct vkms_color_lut srgb_eotf;
+extern const struct vkms_color_lut srgb_inv_eotf;
+
+#endif /* _VKMS_LUTS_H_ */
\ No newline at end of file
diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c
index e5c625ab8e3e..8520ee0534d1 100644
--- a/drivers/gpu/drm/vkms/vkms_plane.c
+++ b/drivers/gpu/drm/vkms/vkms_plane.c
@@ -215,5 +215,7 @@ struct vkms_plane *vkms_plane_init(struct vkms_device *vkmsdev,
 	drm_plane_create_rotation_property(&plane->base, DRM_MODE_ROTATE_0,
 					   DRM_MODE_ROTATE_MASK | DRM_MODE_REFLECT_MASK);

+	vkms_initialize_colorops(&plane->base);
+
 	return plane;
 }
--
2.46.2



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