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Diffstat (limited to 'meta-r1000/recipes-kernel/linux/linux-yocto-4.14.71/4543-drm-amd-display-HLG-support.patch')
-rw-r--r--meta-r1000/recipes-kernel/linux/linux-yocto-4.14.71/4543-drm-amd-display-HLG-support.patch200
1 files changed, 0 insertions, 200 deletions
diff --git a/meta-r1000/recipes-kernel/linux/linux-yocto-4.14.71/4543-drm-amd-display-HLG-support.patch b/meta-r1000/recipes-kernel/linux/linux-yocto-4.14.71/4543-drm-amd-display-HLG-support.patch
deleted file mode 100644
index 8b681f68..00000000
--- a/meta-r1000/recipes-kernel/linux/linux-yocto-4.14.71/4543-drm-amd-display-HLG-support.patch
+++ /dev/null
@@ -1,200 +0,0 @@
-From b85078591bed8f2359bf04c7f77818d8877387c5 Mon Sep 17 00:00:00 2001
-From: Vitaly Prosyak <vitaly.prosyak@amd.com>
-Date: Thu, 10 May 2018 12:37:35 -0500
-Subject: [PATCH 4543/5725] drm/amd/display: HLG support
-
-Low level calculation methods.
-
-Signed-off-by: Vitaly Prosyak <vitaly.prosyak@amd.com>
-Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
-Acked-by: Harry Wentland <harry.wentland@amd.com>
----
- drivers/gpu/drm/amd/display/dc/dc.h | 2 +
- .../drm/amd/display/modules/color/color_gamma.c | 137 +++++++++++++++++++++
- 2 files changed, 139 insertions(+)
-
-diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
-index 693d828..cf076a6 100644
---- a/drivers/gpu/drm/amd/display/dc/dc.h
-+++ b/drivers/gpu/drm/amd/display/dc/dc.h
-@@ -378,6 +378,8 @@ enum dc_transfer_func_predefined {
- TRANSFER_FUNCTION_PQ,
- TRANSFER_FUNCTION_LINEAR,
- TRANSFER_FUNCTION_UNITY,
-+ TRANSFER_FUNCTION_HLG,
-+ TRANSFER_FUNCTION_HLG12
- };
-
- struct dc_transfer_func {
-diff --git a/drivers/gpu/drm/amd/display/modules/color/color_gamma.c b/drivers/gpu/drm/amd/display/modules/color/color_gamma.c
-index e803b37..fa9a199 100644
---- a/drivers/gpu/drm/amd/display/modules/color/color_gamma.c
-+++ b/drivers/gpu/drm/amd/display/modules/color/color_gamma.c
-@@ -131,6 +131,63 @@ static void compute_de_pq(struct fixed31_32 in_x, struct fixed31_32 *out_y)
- dc_fixpt_div(dc_fixpt_one, m1));
-
- }
-+
-+/*de gamma, none linear to linear*/
-+static void compute_hlg_oetf(struct fixed31_32 in_x, bool is_light0_12, struct fixed31_32 *out_y)
-+{
-+ struct fixed31_32 a;
-+ struct fixed31_32 b;
-+ struct fixed31_32 c;
-+ struct fixed31_32 threshold;
-+ struct fixed31_32 reference_white_level;
-+
-+ a = dc_fixpt_from_fraction(17883277, 100000000);
-+ if (is_light0_12) {
-+ /*light 0-12*/
-+ b = dc_fixpt_from_fraction(28466892, 100000000);
-+ c = dc_fixpt_from_fraction(55991073, 100000000);
-+ threshold = dc_fixpt_one;
-+ reference_white_level = dc_fixpt_half;
-+ } else {
-+ /*light 0-1*/
-+ b = dc_fixpt_from_fraction(2372241, 100000000);
-+ c = dc_fixpt_add(dc_fixpt_one, dc_fixpt_from_fraction(429347, 100000000));
-+ threshold = dc_fixpt_from_fraction(1, 12);
-+ reference_white_level = dc_fixpt_pow(dc_fixpt_from_fraction(3, 1), dc_fixpt_half);
-+ }
-+ if (dc_fixpt_lt(threshold, in_x))
-+ *out_y = dc_fixpt_add(c, dc_fixpt_mul(a, dc_fixpt_log(dc_fixpt_sub(in_x, b))));
-+ else
-+ *out_y = dc_fixpt_mul(dc_fixpt_pow(in_x, dc_fixpt_half), reference_white_level);
-+}
-+
-+/*re gamma, linear to none linear*/
-+static void compute_hlg_eotf(struct fixed31_32 in_x, bool is_light0_12, struct fixed31_32 *out_y)
-+{
-+ struct fixed31_32 a;
-+ struct fixed31_32 b;
-+ struct fixed31_32 c;
-+ struct fixed31_32 reference_white_level;
-+
-+ a = dc_fixpt_from_fraction(17883277, 100000000);
-+ if (is_light0_12) {
-+ /*light 0-12*/
-+ b = dc_fixpt_from_fraction(28466892, 100000000);
-+ c = dc_fixpt_from_fraction(55991073, 100000000);
-+ reference_white_level = dc_fixpt_from_fraction(4, 1);
-+ } else {
-+ /*light 0-1*/
-+ b = dc_fixpt_from_fraction(2372241, 100000000);
-+ c = dc_fixpt_add(dc_fixpt_one, dc_fixpt_from_fraction(429347, 100000000));
-+ reference_white_level = dc_fixpt_from_fraction(1, 3);
-+ }
-+ if (dc_fixpt_lt(dc_fixpt_half, in_x))
-+ *out_y = dc_fixpt_add(dc_fixpt_exp(dc_fixpt_div(dc_fixpt_sub(in_x, c), a)), b);
-+ else
-+ *out_y = dc_fixpt_mul(dc_fixpt_pow(in_x, dc_fixpt_from_fraction(2, 1)), reference_white_level);
-+}
-+
-+
- /* one-time pre-compute PQ values - only for sdr_white_level 80 */
- void precompute_pq(void)
- {
-@@ -691,6 +748,48 @@ static void build_degamma(struct pwl_float_data_ex *curve,
- }
- }
-
-+static void build_hlg_degamma(struct pwl_float_data_ex *degamma,
-+ uint32_t hw_points_num,
-+ const struct hw_x_point *coordinate_x, bool is_light0_12)
-+{
-+ uint32_t i;
-+
-+ struct pwl_float_data_ex *rgb = degamma;
-+ const struct hw_x_point *coord_x = coordinate_x;
-+
-+ i = 0;
-+
-+ while (i != hw_points_num + 1) {
-+ compute_hlg_oetf(coord_x->x, is_light0_12, &rgb->r);
-+ rgb->g = rgb->r;
-+ rgb->b = rgb->r;
-+ ++coord_x;
-+ ++rgb;
-+ ++i;
-+ }
-+}
-+
-+static void build_hlg_regamma(struct pwl_float_data_ex *regamma,
-+ uint32_t hw_points_num,
-+ const struct hw_x_point *coordinate_x, bool is_light0_12)
-+{
-+ uint32_t i;
-+
-+ struct pwl_float_data_ex *rgb = regamma;
-+ const struct hw_x_point *coord_x = coordinate_x;
-+
-+ i = 0;
-+
-+ while (i != hw_points_num + 1) {
-+ compute_hlg_eotf(coord_x->x, is_light0_12, &rgb->r);
-+ rgb->g = rgb->r;
-+ rgb->b = rgb->r;
-+ ++coord_x;
-+ ++rgb;
-+ ++i;
-+ }
-+}
-+
- static void scale_gamma(struct pwl_float_data *pwl_rgb,
- const struct dc_gamma *ramp,
- struct dividers dividers)
-@@ -1615,6 +1714,25 @@ bool mod_color_calculate_curve(enum dc_transfer_func_predefined trans,
- ret = true;
-
- kvfree(rgb_regamma);
-+ } else if (trans == TRANSFER_FUNCTION_HLG ||
-+ trans == TRANSFER_FUNCTION_HLG12) {
-+ rgb_regamma = kvzalloc(sizeof(*rgb_regamma) *
-+ (MAX_HW_POINTS + _EXTRA_POINTS),
-+ GFP_KERNEL);
-+ if (!rgb_regamma)
-+ goto rgb_regamma_alloc_fail;
-+
-+ build_hlg_regamma(rgb_regamma,
-+ MAX_HW_POINTS,
-+ coordinates_x,
-+ trans == TRANSFER_FUNCTION_HLG12 ? true:false);
-+ for (i = 0; i <= MAX_HW_POINTS ; i++) {
-+ points->red[i] = rgb_regamma[i].r;
-+ points->green[i] = rgb_regamma[i].g;
-+ points->blue[i] = rgb_regamma[i].b;
-+ }
-+ ret = true;
-+ kvfree(rgb_regamma);
- }
- rgb_regamma_alloc_fail:
- return ret;
-@@ -1675,6 +1793,25 @@ bool mod_color_calculate_degamma_curve(enum dc_transfer_func_predefined trans,
- ret = true;
-
- kvfree(rgb_degamma);
-+ } else if (trans == TRANSFER_FUNCTION_HLG ||
-+ trans == TRANSFER_FUNCTION_HLG12) {
-+ rgb_degamma = kvzalloc(sizeof(*rgb_degamma) *
-+ (MAX_HW_POINTS + _EXTRA_POINTS),
-+ GFP_KERNEL);
-+ if (!rgb_degamma)
-+ goto rgb_degamma_alloc_fail;
-+
-+ build_hlg_degamma(rgb_degamma,
-+ MAX_HW_POINTS,
-+ coordinates_x,
-+ trans == TRANSFER_FUNCTION_HLG12 ? true:false);
-+ for (i = 0; i <= MAX_HW_POINTS ; i++) {
-+ points->red[i] = rgb_degamma[i].r;
-+ points->green[i] = rgb_degamma[i].g;
-+ points->blue[i] = rgb_degamma[i].b;
-+ }
-+ ret = true;
-+ kvfree(rgb_degamma);
- }
- points->end_exponent = 0;
- points->x_point_at_y1_red = 1;
---
-2.7.4
-
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-06-07 04:48:45 +0000