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* [PATCH] drm/amd/display: move FPU associated DSC code to DML folder
@ 2021-09-07 14:32 Qingqing Zhuo
  2021-09-14 15:52 ` Anson Jacob
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Qingqing Zhuo @ 2021-09-07 14:32 UTC (permalink / raw)
  To: amd-gfx
  Cc: Anson Jacob, Christian König, Hersen Wu, Harry Wentland,
	Rodrigo Siqueira

As part of the FPU isolation work documented in
https://patchwork.freedesktop.org/series/93042/, isolate
code that uses FPU in DSC to DML, where all FPU code
should locate.

This change does not refactor any fuctions but move code
around.

Cc: Anson Jacob <Anson.Jacob@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Hersen Wu <hersenxs.wu@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
---
 drivers/gpu/drm/amd/display/dc/dml/Makefile   |   3 +
 .../amd/display/dc/{ => dml}/dsc/qp_tables.h  |   0
 .../drm/amd/display/dc/dml/dsc/rc_calc_fpu.c  | 287 ++++++++++++++++++
 .../drm/amd/display/dc/dml/dsc/rc_calc_fpu.h  |  89 ++++++
 drivers/gpu/drm/amd/display/dc/dsc/Makefile   |   8 -
 drivers/gpu/drm/amd/display/dc/dsc/rc_calc.c  | 257 ----------------
 drivers/gpu/drm/amd/display/dc/dsc/rc_calc.h  |  50 +--
 .../gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c  |   1 -
 8 files changed, 380 insertions(+), 315 deletions(-)
 rename drivers/gpu/drm/amd/display/dc/{ => dml}/dsc/qp_tables.h (100%)
 create mode 100644 drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.c
 create mode 100644 drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.h

diff --git a/drivers/gpu/drm/amd/display/dc/dml/Makefile b/drivers/gpu/drm/amd/display/dc/dml/Makefile
index 56055df2e8d2..9009b92490f3 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/dml/Makefile
@@ -70,6 +70,7 @@ CFLAGS_$(AMDDALPATH)/dc/dml/dcn30/display_mode_vba_30.o := $(dml_ccflags) $(fram
 CFLAGS_$(AMDDALPATH)/dc/dml/dcn30/display_rq_dlg_calc_30.o := $(dml_ccflags)
 CFLAGS_$(AMDDALPATH)/dc/dml/dcn31/display_mode_vba_31.o := $(dml_ccflags) $(frame_warn_flag)
 CFLAGS_$(AMDDALPATH)/dc/dml/dcn31/display_rq_dlg_calc_31.o := $(dml_ccflags)
+CFLAGS_$(AMDDALPATH)/dc/dml/dsc/rc_calc_fpu.o := $(dml_ccflags)
 CFLAGS_$(AMDDALPATH)/dc/dml/display_mode_lib.o := $(dml_ccflags)
 CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/display_mode_vba.o := $(dml_rcflags)
 CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn2x/dcn2x.o := $(dml_rcflags)
@@ -84,6 +85,7 @@ CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn30/display_rq_dlg_calc_30.o := $(dml_rcfla
 CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn31/display_mode_vba_31.o := $(dml_rcflags)
 CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn31/display_rq_dlg_calc_31.o := $(dml_rcflags)
 CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/display_mode_lib.o := $(dml_rcflags)
+CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dsc/rc_calc_fpu.o  := $(dml_rcflags)
 endif
 CFLAGS_$(AMDDALPATH)/dc/dml/dml1_display_rq_dlg_calc.o := $(dml_ccflags)
 CFLAGS_$(AMDDALPATH)/dc/dml/display_rq_dlg_helpers.o := $(dml_ccflags)
@@ -99,6 +101,7 @@ DML += dcn20/display_rq_dlg_calc_20v2.o dcn20/display_mode_vba_20v2.o
 DML += dcn21/display_rq_dlg_calc_21.o dcn21/display_mode_vba_21.o
 DML += dcn30/display_mode_vba_30.o dcn30/display_rq_dlg_calc_30.o
 DML += dcn31/display_mode_vba_31.o dcn31/display_rq_dlg_calc_31.o
+DML += dsc/rc_calc_fpu.o
 endif
 
 AMD_DAL_DML = $(addprefix $(AMDDALPATH)/dc/dml/,$(DML))
diff --git a/drivers/gpu/drm/amd/display/dc/dsc/qp_tables.h b/drivers/gpu/drm/amd/display/dc/dml/dsc/qp_tables.h
similarity index 100%
rename from drivers/gpu/drm/amd/display/dc/dsc/qp_tables.h
rename to drivers/gpu/drm/amd/display/dc/dml/dsc/qp_tables.h
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.c
new file mode 100644
index 000000000000..0436fc64948f
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.c
@@ -0,0 +1,287 @@
+/*
+ * Copyright 2021 Advanced Micro Devices, Inc.
+ *
+ * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: AMD
+ *
+ */
+
+#include "rc_calc_fpu.h"
+
+#include "qp_tables.h"
+#include "amdgpu_dm/dc_fpu.h"
+
+#define table_hash(mode, bpc, max_min) ((mode << 16) | (bpc << 8) | max_min)
+
+#define MODE_SELECT(val444, val422, val420) \
+	(cm == CM_444 || cm == CM_RGB) ? (val444) : (cm == CM_422 ? (val422) : (val420))
+
+
+#define TABLE_CASE(mode, bpc, max)   case (table_hash(mode, BPC_##bpc, max)): \
+	table = qp_table_##mode##_##bpc##bpc_##max; \
+	table_size = sizeof(qp_table_##mode##_##bpc##bpc_##max)/sizeof(*qp_table_##mode##_##bpc##bpc_##max); \
+	break
+
+static int median3(int a, int b, int c)
+{
+	if (a > b)
+		swap(a, b);
+	if (b > c)
+		swap(b, c);
+	if (a > b)
+		swap(b, c);
+
+	return b;
+}
+
+static double dsc_roundf(double num)
+{
+	if (num < 0.0)
+		num = num - 0.5;
+	else
+		num = num + 0.5;
+
+	return (int)(num);
+}
+
+static double dsc_ceil(double num)
+{
+	double retval = (int)num;
+
+	if (retval != num && num > 0)
+		retval = num + 1;
+
+	return (int)retval;
+}
+
+static void get_qp_set(qp_set qps, enum colour_mode cm, enum bits_per_comp bpc,
+		       enum max_min max_min, float bpp)
+{
+	int mode = MODE_SELECT(444, 422, 420);
+	int sel = table_hash(mode, bpc, max_min);
+	int table_size = 0;
+	int index;
+	const struct qp_entry *table = 0L;
+
+	// alias enum
+	enum { min = DAL_MM_MIN, max = DAL_MM_MAX };
+	switch (sel) {
+		TABLE_CASE(444,  8, max);
+		TABLE_CASE(444,  8, min);
+		TABLE_CASE(444, 10, max);
+		TABLE_CASE(444, 10, min);
+		TABLE_CASE(444, 12, max);
+		TABLE_CASE(444, 12, min);
+		TABLE_CASE(422,  8, max);
+		TABLE_CASE(422,  8, min);
+		TABLE_CASE(422, 10, max);
+		TABLE_CASE(422, 10, min);
+		TABLE_CASE(422, 12, max);
+		TABLE_CASE(422, 12, min);
+		TABLE_CASE(420,  8, max);
+		TABLE_CASE(420,  8, min);
+		TABLE_CASE(420, 10, max);
+		TABLE_CASE(420, 10, min);
+		TABLE_CASE(420, 12, max);
+		TABLE_CASE(420, 12, min);
+	}
+
+	if (table == 0)
+		return;
+
+	index = (bpp - table[0].bpp) * 2;
+
+	/* requested size is bigger than the table */
+	if (index >= table_size) {
+		dm_error("ERROR: Requested rc_calc to find a bpp entry that exceeds the table size\n");
+		return;
+	}
+
+	memcpy(qps, table[index].qps, sizeof(qp_set));
+}
+
+static void get_ofs_set(qp_set ofs, enum colour_mode mode, float bpp)
+{
+	int   *p = ofs;
+
+	if (mode == CM_444 || mode == CM_RGB) {
+		*p++ = (bpp <=  6) ? (0) : ((((bpp >=  8) && (bpp <= 12))) ? (2) : ((bpp >= 15) ? (10) : ((((bpp > 6) && (bpp < 8))) ? (0 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (2 + dsc_roundf((bpp - 12) * (8 / 3.0))))));
+		*p++ = (bpp <=  6) ? (-2) : ((((bpp >=  8) && (bpp <= 12))) ? (0) : ((bpp >= 15) ? (8) : ((((bpp > 6) && (bpp < 8))) ? (-2 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (0 + dsc_roundf((bpp - 12) * (8 / 3.0))))));
+		*p++ = (bpp <=  6) ? (-2) : ((((bpp >=  8) && (bpp <= 12))) ? (0) : ((bpp >= 15) ? (6) : ((((bpp > 6) && (bpp < 8))) ? (-2 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (0 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
+		*p++ = (bpp <=  6) ? (-4) : ((((bpp >=  8) && (bpp <= 12))) ? (-2) : ((bpp >= 15) ? (4) : ((((bpp > 6) && (bpp < 8))) ? (-4 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (-2 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
+		*p++ = (bpp <=  6) ? (-6) : ((((bpp >=  8) && (bpp <= 12))) ? (-4) : ((bpp >= 15) ? (2) : ((((bpp > 6) && (bpp < 8))) ? (-6 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (-4 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
+		*p++ = (bpp <= 12) ? (-6) : ((bpp >= 15) ? (0) : (-6 + dsc_roundf((bpp - 12) * (6 / 3.0))));
+		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-2) : (-8 + dsc_roundf((bpp - 12) * (6 / 3.0))));
+		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-4) : (-8 + dsc_roundf((bpp - 12) * (4 / 3.0))));
+		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-6) : (-8 + dsc_roundf((bpp - 12) * (2 / 3.0))));
+		*p++ = (bpp <= 12) ? (-10) : ((bpp >= 15) ? (-8) : (-10 + dsc_roundf((bpp - 12) * (2 / 3.0))));
+		*p++ = -10;
+		*p++ = (bpp <=  6) ? (-12) : ((bpp >=  8) ? (-10) : (-12 + dsc_roundf((bpp -  6) * (2 / 2.0))));
+		*p++ = -12;
+		*p++ = -12;
+		*p++ = -12;
+	} else if (mode == CM_422) {
+		*p++ = (bpp <=  8) ? (2) : ((bpp >= 10) ? (10) : (2 + dsc_roundf((bpp -  8) * (8 / 2.0))));
+		*p++ = (bpp <=  8) ? (0) : ((bpp >= 10) ? (8) : (0 + dsc_roundf((bpp -  8) * (8 / 2.0))));
+		*p++ = (bpp <=  8) ? (0) : ((bpp >= 10) ? (6) : (0 + dsc_roundf((bpp -  8) * (6 / 2.0))));
+		*p++ = (bpp <=  8) ? (-2) : ((bpp >= 10) ? (4) : (-2 + dsc_roundf((bpp -  8) * (6 / 2.0))));
+		*p++ = (bpp <=  8) ? (-4) : ((bpp >= 10) ? (2) : (-4 + dsc_roundf((bpp -  8) * (6 / 2.0))));
+		*p++ = (bpp <=  8) ? (-6) : ((bpp >= 10) ? (0) : (-6 + dsc_roundf((bpp -  8) * (6 / 2.0))));
+		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-2) : (-8 + dsc_roundf((bpp -  8) * (6 / 2.0))));
+		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-4) : (-8 + dsc_roundf((bpp -  8) * (4 / 2.0))));
+		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-6) : (-8 + dsc_roundf((bpp -  8) * (2 / 2.0))));
+		*p++ = (bpp <=  8) ? (-10) : ((bpp >= 10) ? (-8) : (-10 + dsc_roundf((bpp -  8) * (2 / 2.0))));
+		*p++ = -10;
+		*p++ = (bpp <=  6) ? (-12) : ((bpp >= 7) ? (-10) : (-12 + dsc_roundf((bpp -  6) * (2.0 / 1))));
+		*p++ = -12;
+		*p++ = -12;
+		*p++ = -12;
+	} else {
+		*p++ = (bpp <=  6) ? (2) : ((bpp >=  8) ? (10) : (2 + dsc_roundf((bpp -  6) * (8 / 2.0))));
+		*p++ = (bpp <=  6) ? (0) : ((bpp >=  8) ? (8) : (0 + dsc_roundf((bpp -  6) * (8 / 2.0))));
+		*p++ = (bpp <=  6) ? (0) : ((bpp >=  8) ? (6) : (0 + dsc_roundf((bpp -  6) * (6 / 2.0))));
+		*p++ = (bpp <=  6) ? (-2) : ((bpp >=  8) ? (4) : (-2 + dsc_roundf((bpp -  6) * (6 / 2.0))));
+		*p++ = (bpp <=  6) ? (-4) : ((bpp >=  8) ? (2) : (-4 + dsc_roundf((bpp -  6) * (6 / 2.0))));
+		*p++ = (bpp <=  6) ? (-6) : ((bpp >=  8) ? (0) : (-6 + dsc_roundf((bpp -  6) * (6 / 2.0))));
+		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-2) : (-8 + dsc_roundf((bpp -  6) * (6 / 2.0))));
+		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-4) : (-8 + dsc_roundf((bpp -  6) * (4 / 2.0))));
+		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-6) : (-8 + dsc_roundf((bpp -  6) * (2 / 2.0))));
+		*p++ = (bpp <=  6) ? (-10) : ((bpp >=  8) ? (-8) : (-10 + dsc_roundf((bpp -  6) * (2 / 2.0))));
+		*p++ = -10;
+		*p++ = (bpp <=  4) ? (-12) : ((bpp >=  5) ? (-10) : (-12 + dsc_roundf((bpp -  4) * (2 / 1.0))));
+		*p++ = -12;
+		*p++ = -12;
+		*p++ = -12;
+	}
+}
+
+void _do_calc_rc_params(struct rc_params *rc, enum colour_mode cm,
+			       enum bits_per_comp bpc, u16 drm_bpp,
+			       bool is_navite_422_or_420,
+			       int slice_width, int slice_height,
+			       int minor_version)
+{
+	float bpp;
+	float bpp_group;
+	float initial_xmit_delay_factor;
+	int padding_pixels;
+	int i;
+
+	dc_assert_fp_enabled();
+
+	bpp = ((float)drm_bpp / 16.0);
+	/* in native_422 or native_420 modes, the bits_per_pixel is double the
+	 * target bpp (the latter is what calc_rc_params expects)
+	 */
+	if (is_navite_422_or_420)
+		bpp /= 2.0;
+
+	rc->rc_quant_incr_limit0 = ((bpc == BPC_8) ? 11 : (bpc == BPC_10 ? 15 : 19)) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
+	rc->rc_quant_incr_limit1 = ((bpc == BPC_8) ? 11 : (bpc == BPC_10 ? 15 : 19)) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
+
+	bpp_group = MODE_SELECT(bpp, bpp * 2.0, bpp * 2.0);
+
+	switch (cm) {
+	case CM_420:
+		rc->initial_fullness_offset = (bpp >=  6) ? (2048) : ((bpp <=  4) ? (6144) : ((((bpp >  4) && (bpp <=  5))) ? (6144 - dsc_roundf((bpp - 4) * (512))) : (5632 - dsc_roundf((bpp -  5) * (3584)))));
+		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)((3 * bpc * 3) - (3 * bpp_group)));
+		rc->second_line_bpg_offset  = median3(0, 12, (int)((3 * bpc * 3) - (3 * bpp_group)));
+		break;
+	case CM_422:
+		rc->initial_fullness_offset = (bpp >=  8) ? (2048) : ((bpp <=  7) ? (5632) : (5632 - dsc_roundf((bpp - 7) * (3584))));
+		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)((3 * bpc * 4) - (3 * bpp_group)));
+		rc->second_line_bpg_offset  = 0;
+		break;
+	case CM_444:
+	case CM_RGB:
+		rc->initial_fullness_offset = (bpp >= 12) ? (2048) : ((bpp <=  8) ? (6144) : ((((bpp >  8) && (bpp <= 10))) ? (6144 - dsc_roundf((bpp - 8) * (512 / 2))) : (5632 - dsc_roundf((bpp - 10) * (3584 / 2)))));
+		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)(((3 * bpc + (cm == CM_444 ? 0 : 2)) * 3) - (3 * bpp_group)));
+		rc->second_line_bpg_offset  = 0;
+		break;
+	}
+
+	initial_xmit_delay_factor = (cm == CM_444 || cm == CM_RGB) ? 1.0 : 2.0;
+	rc->initial_xmit_delay = dsc_roundf(8192.0/2.0/bpp/initial_xmit_delay_factor);
+
+	if (cm == CM_422 || cm == CM_420)
+		slice_width /= 2;
+
+	padding_pixels = ((slice_width % 3) != 0) ? (3 - (slice_width % 3)) * (rc->initial_xmit_delay / slice_width) : 0;
+	if (3 * bpp_group >= (((rc->initial_xmit_delay + 2) / 3) * (3 + (cm == CM_422)))) {
+		if ((rc->initial_xmit_delay + padding_pixels) % 3 == 1)
+			rc->initial_xmit_delay++;
+	}
+
+	rc->flatness_min_qp     = ((bpc == BPC_8) ?  (3) : ((bpc == BPC_10) ? (7)  : (11))) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
+	rc->flatness_max_qp     = ((bpc == BPC_8) ? (12) : ((bpc == BPC_10) ? (16) : (20))) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
+	rc->flatness_det_thresh = 2 << (bpc - 8);
+
+	get_qp_set(rc->qp_min, cm, bpc, DAL_MM_MIN, bpp);
+	get_qp_set(rc->qp_max, cm, bpc, DAL_MM_MAX, bpp);
+	if (cm == CM_444 && minor_version == 1) {
+		for (i = 0; i < QP_SET_SIZE; ++i) {
+			rc->qp_min[i] = rc->qp_min[i] > 0 ? rc->qp_min[i] - 1 : 0;
+			rc->qp_max[i] = rc->qp_max[i] > 0 ? rc->qp_max[i] - 1 : 0;
+		}
+	}
+	get_ofs_set(rc->ofs, cm, bpp);
+
+	/* fixed parameters */
+	rc->rc_model_size    = 8192;
+	rc->rc_edge_factor   = 6;
+	rc->rc_tgt_offset_hi = 3;
+	rc->rc_tgt_offset_lo = 3;
+
+	rc->rc_buf_thresh[0] = 896;
+	rc->rc_buf_thresh[1] = 1792;
+	rc->rc_buf_thresh[2] = 2688;
+	rc->rc_buf_thresh[3] = 3584;
+	rc->rc_buf_thresh[4] = 4480;
+	rc->rc_buf_thresh[5] = 5376;
+	rc->rc_buf_thresh[6] = 6272;
+	rc->rc_buf_thresh[7] = 6720;
+	rc->rc_buf_thresh[8] = 7168;
+	rc->rc_buf_thresh[9] = 7616;
+	rc->rc_buf_thresh[10] = 7744;
+	rc->rc_buf_thresh[11] = 7872;
+	rc->rc_buf_thresh[12] = 8000;
+	rc->rc_buf_thresh[13] = 8064;
+}
+
+u32 _do_bytes_per_pixel_calc(int slice_width, u16 drm_bpp,
+				    bool is_navite_422_or_420)
+{
+	float bpp;
+	u32 bytes_per_pixel;
+	double d_bytes_per_pixel;
+
+	dc_assert_fp_enabled();
+
+	bpp = ((float)drm_bpp / 16.0);
+	d_bytes_per_pixel = dsc_ceil(bpp * slice_width / 8.0) / slice_width;
+	// TODO: Make sure the formula for calculating this is precise (ceiling
+	// vs. floor, and at what point they should be applied)
+	if (is_navite_422_or_420)
+		d_bytes_per_pixel /= 2;
+
+	bytes_per_pixel = (u32)dsc_ceil(d_bytes_per_pixel * 0x10000000);
+
+	return bytes_per_pixel;
+}
\ No newline at end of file
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.h b/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.h
new file mode 100644
index 000000000000..d3900ff7fa89
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.h
@@ -0,0 +1,89 @@
+/*
+ * Copyright 2021 Advanced Micro Devices, Inc.
+ *
+ * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: AMD
+ *
+ */
+
+#ifndef __RC_CALC_FPU_H__
+#define __RC_CALC_FPU_H__
+
+#include "os_types.h"
+
+#define QP_SET_SIZE 15
+
+typedef int qp_set[QP_SET_SIZE];
+
+struct rc_params {
+	int      rc_quant_incr_limit0;
+	int      rc_quant_incr_limit1;
+	int      initial_fullness_offset;
+	int      initial_xmit_delay;
+	int      first_line_bpg_offset;
+	int      second_line_bpg_offset;
+	int      flatness_min_qp;
+	int      flatness_max_qp;
+	int      flatness_det_thresh;
+	qp_set   qp_min;
+	qp_set   qp_max;
+	qp_set   ofs;
+	int      rc_model_size;
+	int      rc_edge_factor;
+	int      rc_tgt_offset_hi;
+	int      rc_tgt_offset_lo;
+	int      rc_buf_thresh[QP_SET_SIZE - 1];
+};
+
+enum colour_mode {
+	CM_RGB,   /* 444 RGB */
+	CM_444,   /* 444 YUV or simple 422 */
+	CM_422,   /* native 422 */
+	CM_420    /* native 420 */
+};
+
+enum bits_per_comp {
+	BPC_8  =  8,
+	BPC_10 = 10,
+	BPC_12 = 12
+};
+
+enum max_min {
+	DAL_MM_MIN = 0,
+	DAL_MM_MAX = 1
+};
+
+struct qp_entry {
+	float         bpp;
+	const qp_set  qps;
+};
+
+typedef struct qp_entry qp_table[];
+
+u32 _do_bytes_per_pixel_calc(int slice_width, u16 drm_bpp,
+				    bool is_navite_422_or_420);
+
+void _do_calc_rc_params(struct rc_params *rc, enum colour_mode cm,
+			       enum bits_per_comp bpc, u16 drm_bpp,
+			       bool is_navite_422_or_420,
+			       int slice_width, int slice_height,
+			       int minor_version);
+
+#endif
\ No newline at end of file
diff --git a/drivers/gpu/drm/amd/display/dc/dsc/Makefile b/drivers/gpu/drm/amd/display/dc/dsc/Makefile
index 8d31eb75c6a6..8d01b8a9fc6a 100644
--- a/drivers/gpu/drm/amd/display/dc/dsc/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/dsc/Makefile
@@ -2,14 +2,6 @@
 #
 # Makefile for the 'dsc' sub-component of DAL.
 
-ifdef CONFIG_X86
-dsc_ccflags := -mhard-float -msse
-endif
-
-ifdef CONFIG_PPC64
-dsc_ccflags := -mhard-float -maltivec
-endif
-
 ifdef CONFIG_CC_IS_GCC
 ifeq ($(call cc-ifversion, -lt, 0701, y), y)
 IS_OLD_GCC = 1
diff --git a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.c b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.c
index 7b294f637881..87acec33b8d8 100644
--- a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.c
+++ b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.c
@@ -25,264 +25,7 @@
  */
 #include <drm/drm_dsc.h>
 
-#include "os_types.h"
 #include "rc_calc.h"
-#include "qp_tables.h"
-
-#define table_hash(mode, bpc, max_min) ((mode << 16) | (bpc << 8) | max_min)
-
-#define MODE_SELECT(val444, val422, val420) \
-	(cm == CM_444 || cm == CM_RGB) ? (val444) : (cm == CM_422 ? (val422) : (val420))
-
-
-#define TABLE_CASE(mode, bpc, max)   case (table_hash(mode, BPC_##bpc, max)): \
-	table = qp_table_##mode##_##bpc##bpc_##max; \
-	table_size = sizeof(qp_table_##mode##_##bpc##bpc_##max)/sizeof(*qp_table_##mode##_##bpc##bpc_##max); \
-	break
-
-
-static void get_qp_set(qp_set qps, enum colour_mode cm, enum bits_per_comp bpc,
-		       enum max_min max_min, float bpp)
-{
-	int mode = MODE_SELECT(444, 422, 420);
-	int sel = table_hash(mode, bpc, max_min);
-	int table_size = 0;
-	int index;
-	const struct qp_entry *table = 0L;
-
-	// alias enum
-	enum { min = DAL_MM_MIN, max = DAL_MM_MAX };
-	switch (sel) {
-		TABLE_CASE(444,  8, max);
-		TABLE_CASE(444,  8, min);
-		TABLE_CASE(444, 10, max);
-		TABLE_CASE(444, 10, min);
-		TABLE_CASE(444, 12, max);
-		TABLE_CASE(444, 12, min);
-		TABLE_CASE(422,  8, max);
-		TABLE_CASE(422,  8, min);
-		TABLE_CASE(422, 10, max);
-		TABLE_CASE(422, 10, min);
-		TABLE_CASE(422, 12, max);
-		TABLE_CASE(422, 12, min);
-		TABLE_CASE(420,  8, max);
-		TABLE_CASE(420,  8, min);
-		TABLE_CASE(420, 10, max);
-		TABLE_CASE(420, 10, min);
-		TABLE_CASE(420, 12, max);
-		TABLE_CASE(420, 12, min);
-	}
-
-	if (table == 0)
-		return;
-
-	index = (bpp - table[0].bpp) * 2;
-
-	/* requested size is bigger than the table */
-	if (index >= table_size) {
-		dm_error("ERROR: Requested rc_calc to find a bpp entry that exceeds the table size\n");
-		return;
-	}
-
-	memcpy(qps, table[index].qps, sizeof(qp_set));
-}
-
-static double dsc_roundf(double num)
-{
-	if (num < 0.0)
-		num = num - 0.5;
-	else
-		num = num + 0.5;
-
-	return (int)(num);
-}
-
-static double dsc_ceil(double num)
-{
-	double retval = (int)num;
-
-	if (retval != num && num > 0)
-		retval = num + 1;
-
-	return (int)retval;
-}
-
-static void get_ofs_set(qp_set ofs, enum colour_mode mode, float bpp)
-{
-	int   *p = ofs;
-
-	if (mode == CM_444 || mode == CM_RGB) {
-		*p++ = (bpp <=  6) ? (0) : ((((bpp >=  8) && (bpp <= 12))) ? (2) : ((bpp >= 15) ? (10) : ((((bpp > 6) && (bpp < 8))) ? (0 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (2 + dsc_roundf((bpp - 12) * (8 / 3.0))))));
-		*p++ = (bpp <=  6) ? (-2) : ((((bpp >=  8) && (bpp <= 12))) ? (0) : ((bpp >= 15) ? (8) : ((((bpp > 6) && (bpp < 8))) ? (-2 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (0 + dsc_roundf((bpp - 12) * (8 / 3.0))))));
-		*p++ = (bpp <=  6) ? (-2) : ((((bpp >=  8) && (bpp <= 12))) ? (0) : ((bpp >= 15) ? (6) : ((((bpp > 6) && (bpp < 8))) ? (-2 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (0 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
-		*p++ = (bpp <=  6) ? (-4) : ((((bpp >=  8) && (bpp <= 12))) ? (-2) : ((bpp >= 15) ? (4) : ((((bpp > 6) && (bpp < 8))) ? (-4 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (-2 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
-		*p++ = (bpp <=  6) ? (-6) : ((((bpp >=  8) && (bpp <= 12))) ? (-4) : ((bpp >= 15) ? (2) : ((((bpp > 6) && (bpp < 8))) ? (-6 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (-4 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
-		*p++ = (bpp <= 12) ? (-6) : ((bpp >= 15) ? (0) : (-6 + dsc_roundf((bpp - 12) * (6 / 3.0))));
-		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-2) : (-8 + dsc_roundf((bpp - 12) * (6 / 3.0))));
-		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-4) : (-8 + dsc_roundf((bpp - 12) * (4 / 3.0))));
-		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-6) : (-8 + dsc_roundf((bpp - 12) * (2 / 3.0))));
-		*p++ = (bpp <= 12) ? (-10) : ((bpp >= 15) ? (-8) : (-10 + dsc_roundf((bpp - 12) * (2 / 3.0))));
-		*p++ = -10;
-		*p++ = (bpp <=  6) ? (-12) : ((bpp >=  8) ? (-10) : (-12 + dsc_roundf((bpp -  6) * (2 / 2.0))));
-		*p++ = -12;
-		*p++ = -12;
-		*p++ = -12;
-	} else if (mode == CM_422) {
-		*p++ = (bpp <=  8) ? (2) : ((bpp >= 10) ? (10) : (2 + dsc_roundf((bpp -  8) * (8 / 2.0))));
-		*p++ = (bpp <=  8) ? (0) : ((bpp >= 10) ? (8) : (0 + dsc_roundf((bpp -  8) * (8 / 2.0))));
-		*p++ = (bpp <=  8) ? (0) : ((bpp >= 10) ? (6) : (0 + dsc_roundf((bpp -  8) * (6 / 2.0))));
-		*p++ = (bpp <=  8) ? (-2) : ((bpp >= 10) ? (4) : (-2 + dsc_roundf((bpp -  8) * (6 / 2.0))));
-		*p++ = (bpp <=  8) ? (-4) : ((bpp >= 10) ? (2) : (-4 + dsc_roundf((bpp -  8) * (6 / 2.0))));
-		*p++ = (bpp <=  8) ? (-6) : ((bpp >= 10) ? (0) : (-6 + dsc_roundf((bpp -  8) * (6 / 2.0))));
-		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-2) : (-8 + dsc_roundf((bpp -  8) * (6 / 2.0))));
-		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-4) : (-8 + dsc_roundf((bpp -  8) * (4 / 2.0))));
-		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-6) : (-8 + dsc_roundf((bpp -  8) * (2 / 2.0))));
-		*p++ = (bpp <=  8) ? (-10) : ((bpp >= 10) ? (-8) : (-10 + dsc_roundf((bpp -  8) * (2 / 2.0))));
-		*p++ = -10;
-		*p++ = (bpp <=  6) ? (-12) : ((bpp >= 7) ? (-10) : (-12 + dsc_roundf((bpp -  6) * (2.0 / 1))));
-		*p++ = -12;
-		*p++ = -12;
-		*p++ = -12;
-	} else {
-		*p++ = (bpp <=  6) ? (2) : ((bpp >=  8) ? (10) : (2 + dsc_roundf((bpp -  6) * (8 / 2.0))));
-		*p++ = (bpp <=  6) ? (0) : ((bpp >=  8) ? (8) : (0 + dsc_roundf((bpp -  6) * (8 / 2.0))));
-		*p++ = (bpp <=  6) ? (0) : ((bpp >=  8) ? (6) : (0 + dsc_roundf((bpp -  6) * (6 / 2.0))));
-		*p++ = (bpp <=  6) ? (-2) : ((bpp >=  8) ? (4) : (-2 + dsc_roundf((bpp -  6) * (6 / 2.0))));
-		*p++ = (bpp <=  6) ? (-4) : ((bpp >=  8) ? (2) : (-4 + dsc_roundf((bpp -  6) * (6 / 2.0))));
-		*p++ = (bpp <=  6) ? (-6) : ((bpp >=  8) ? (0) : (-6 + dsc_roundf((bpp -  6) * (6 / 2.0))));
-		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-2) : (-8 + dsc_roundf((bpp -  6) * (6 / 2.0))));
-		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-4) : (-8 + dsc_roundf((bpp -  6) * (4 / 2.0))));
-		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-6) : (-8 + dsc_roundf((bpp -  6) * (2 / 2.0))));
-		*p++ = (bpp <=  6) ? (-10) : ((bpp >=  8) ? (-8) : (-10 + dsc_roundf((bpp -  6) * (2 / 2.0))));
-		*p++ = -10;
-		*p++ = (bpp <=  4) ? (-12) : ((bpp >=  5) ? (-10) : (-12 + dsc_roundf((bpp -  4) * (2 / 1.0))));
-		*p++ = -12;
-		*p++ = -12;
-		*p++ = -12;
-	}
-}
-
-static int median3(int a, int b, int c)
-{
-	if (a > b)
-		swap(a, b);
-	if (b > c)
-		swap(b, c);
-	if (a > b)
-		swap(b, c);
-
-	return b;
-}
-
-static void _do_calc_rc_params(struct rc_params *rc, enum colour_mode cm,
-			       enum bits_per_comp bpc, u16 drm_bpp,
-			       bool is_navite_422_or_420,
-			       int slice_width, int slice_height,
-			       int minor_version)
-{
-	float bpp;
-	float bpp_group;
-	float initial_xmit_delay_factor;
-	int padding_pixels;
-	int i;
-
-	bpp = ((float)drm_bpp / 16.0);
-	/* in native_422 or native_420 modes, the bits_per_pixel is double the
-	 * target bpp (the latter is what calc_rc_params expects)
-	 */
-	if (is_navite_422_or_420)
-		bpp /= 2.0;
-
-	rc->rc_quant_incr_limit0 = ((bpc == BPC_8) ? 11 : (bpc == BPC_10 ? 15 : 19)) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
-	rc->rc_quant_incr_limit1 = ((bpc == BPC_8) ? 11 : (bpc == BPC_10 ? 15 : 19)) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
-
-	bpp_group = MODE_SELECT(bpp, bpp * 2.0, bpp * 2.0);
-
-	switch (cm) {
-	case CM_420:
-		rc->initial_fullness_offset = (bpp >=  6) ? (2048) : ((bpp <=  4) ? (6144) : ((((bpp >  4) && (bpp <=  5))) ? (6144 - dsc_roundf((bpp - 4) * (512))) : (5632 - dsc_roundf((bpp -  5) * (3584)))));
-		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)((3 * bpc * 3) - (3 * bpp_group)));
-		rc->second_line_bpg_offset  = median3(0, 12, (int)((3 * bpc * 3) - (3 * bpp_group)));
-		break;
-	case CM_422:
-		rc->initial_fullness_offset = (bpp >=  8) ? (2048) : ((bpp <=  7) ? (5632) : (5632 - dsc_roundf((bpp - 7) * (3584))));
-		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)((3 * bpc * 4) - (3 * bpp_group)));
-		rc->second_line_bpg_offset  = 0;
-		break;
-	case CM_444:
-	case CM_RGB:
-		rc->initial_fullness_offset = (bpp >= 12) ? (2048) : ((bpp <=  8) ? (6144) : ((((bpp >  8) && (bpp <= 10))) ? (6144 - dsc_roundf((bpp - 8) * (512 / 2))) : (5632 - dsc_roundf((bpp - 10) * (3584 / 2)))));
-		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)(((3 * bpc + (cm == CM_444 ? 0 : 2)) * 3) - (3 * bpp_group)));
-		rc->second_line_bpg_offset  = 0;
-		break;
-	}
-
-	initial_xmit_delay_factor = (cm == CM_444 || cm == CM_RGB) ? 1.0 : 2.0;
-	rc->initial_xmit_delay = dsc_roundf(8192.0/2.0/bpp/initial_xmit_delay_factor);
-
-	if (cm == CM_422 || cm == CM_420)
-		slice_width /= 2;
-
-	padding_pixels = ((slice_width % 3) != 0) ? (3 - (slice_width % 3)) * (rc->initial_xmit_delay / slice_width) : 0;
-	if (3 * bpp_group >= (((rc->initial_xmit_delay + 2) / 3) * (3 + (cm == CM_422)))) {
-		if ((rc->initial_xmit_delay + padding_pixels) % 3 == 1)
-			rc->initial_xmit_delay++;
-	}
-
-	rc->flatness_min_qp     = ((bpc == BPC_8) ?  (3) : ((bpc == BPC_10) ? (7)  : (11))) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
-	rc->flatness_max_qp     = ((bpc == BPC_8) ? (12) : ((bpc == BPC_10) ? (16) : (20))) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
-	rc->flatness_det_thresh = 2 << (bpc - 8);
-
-	get_qp_set(rc->qp_min, cm, bpc, DAL_MM_MIN, bpp);
-	get_qp_set(rc->qp_max, cm, bpc, DAL_MM_MAX, bpp);
-	if (cm == CM_444 && minor_version == 1) {
-		for (i = 0; i < QP_SET_SIZE; ++i) {
-			rc->qp_min[i] = rc->qp_min[i] > 0 ? rc->qp_min[i] - 1 : 0;
-			rc->qp_max[i] = rc->qp_max[i] > 0 ? rc->qp_max[i] - 1 : 0;
-		}
-	}
-	get_ofs_set(rc->ofs, cm, bpp);
-
-	/* fixed parameters */
-	rc->rc_model_size    = 8192;
-	rc->rc_edge_factor   = 6;
-	rc->rc_tgt_offset_hi = 3;
-	rc->rc_tgt_offset_lo = 3;
-
-	rc->rc_buf_thresh[0] = 896;
-	rc->rc_buf_thresh[1] = 1792;
-	rc->rc_buf_thresh[2] = 2688;
-	rc->rc_buf_thresh[3] = 3584;
-	rc->rc_buf_thresh[4] = 4480;
-	rc->rc_buf_thresh[5] = 5376;
-	rc->rc_buf_thresh[6] = 6272;
-	rc->rc_buf_thresh[7] = 6720;
-	rc->rc_buf_thresh[8] = 7168;
-	rc->rc_buf_thresh[9] = 7616;
-	rc->rc_buf_thresh[10] = 7744;
-	rc->rc_buf_thresh[11] = 7872;
-	rc->rc_buf_thresh[12] = 8000;
-	rc->rc_buf_thresh[13] = 8064;
-}
-
-static u32 _do_bytes_per_pixel_calc(int slice_width, u16 drm_bpp,
-				    bool is_navite_422_or_420)
-{
-	float bpp;
-	u32 bytes_per_pixel;
-	double d_bytes_per_pixel;
-
-	bpp = ((float)drm_bpp / 16.0);
-	d_bytes_per_pixel = dsc_ceil(bpp * slice_width / 8.0) / slice_width;
-	// TODO: Make sure the formula for calculating this is precise (ceiling
-	// vs. floor, and at what point they should be applied)
-	if (is_navite_422_or_420)
-		d_bytes_per_pixel /= 2;
-
-	bytes_per_pixel = (u32)dsc_ceil(d_bytes_per_pixel * 0x10000000);
-
-	return bytes_per_pixel;
-}
 
 /**
  * calc_rc_params - reads the user's cmdline mode
diff --git a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.h b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.h
index 262f06afcbf9..c2340e001b57 100644
--- a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.h
+++ b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.h
@@ -27,55 +27,7 @@
 #ifndef __RC_CALC_H__
 #define __RC_CALC_H__
 
-
-#define QP_SET_SIZE 15
-
-typedef int qp_set[QP_SET_SIZE];
-
-struct rc_params {
-	int      rc_quant_incr_limit0;
-	int      rc_quant_incr_limit1;
-	int      initial_fullness_offset;
-	int      initial_xmit_delay;
-	int      first_line_bpg_offset;
-	int      second_line_bpg_offset;
-	int      flatness_min_qp;
-	int      flatness_max_qp;
-	int      flatness_det_thresh;
-	qp_set   qp_min;
-	qp_set   qp_max;
-	qp_set   ofs;
-	int      rc_model_size;
-	int      rc_edge_factor;
-	int      rc_tgt_offset_hi;
-	int      rc_tgt_offset_lo;
-	int      rc_buf_thresh[QP_SET_SIZE - 1];
-};
-
-enum colour_mode {
-	CM_RGB,   /* 444 RGB */
-	CM_444,   /* 444 YUV or simple 422 */
-	CM_422,   /* native 422 */
-	CM_420    /* native 420 */
-};
-
-enum bits_per_comp {
-	BPC_8  =  8,
-	BPC_10 = 10,
-	BPC_12 = 12
-};
-
-enum max_min {
-	DAL_MM_MIN = 0,
-	DAL_MM_MAX = 1
-};
-
-struct qp_entry {
-	float         bpp;
-	const qp_set  qps;
-};
-
-typedef struct qp_entry qp_table[];
+#include "dml/dsc/rc_calc_fpu.h"
 
 void calc_rc_params(struct rc_params *rc, const struct drm_dsc_config *pps);
 u32 calc_dsc_bytes_per_pixel(const struct drm_dsc_config *pps);
diff --git a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c
index ef830aded5b1..1e19dd674e5a 100644
--- a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c
+++ b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c
@@ -22,7 +22,6 @@
  * Authors: AMD
  *
  */
-#include "os_types.h"
 #include <drm/drm_dsc.h>
 #include "dscc_types.h"
 #include "rc_calc.h"
-- 
2.25.1


^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: drm/amd/display: move FPU associated DSC code to DML folder
  2021-09-07 14:32 [PATCH] drm/amd/display: move FPU associated DSC code to DML folder Qingqing Zhuo
@ 2021-09-14 15:52 ` Anson Jacob
  2021-09-17 15:07 ` [PATCH] " Rodrigo Siqueira
  2021-09-20  7:36 ` Christian König
  2 siblings, 0 replies; 4+ messages in thread
From: Anson Jacob @ 2021-09-14 15:52 UTC (permalink / raw)
  To: Qingqing Zhuo, amd-gfx
  Cc: Christian König, Hersen Wu, Harry Wentland, Rodrigo Siqueira

Tested on nixeus 4k144hz DSC capable display on

RX5700XT (NAVI10 0x1002:0x731F 0x1DA2:0xE410 0xC1)

on ubuntu 20.04. Display lightsup at 4k144hz with DSC engine on.

Tested-by: Anson Jacob <Anson.Jacob@amd.com>

On 2021-09-07 10:32 a.m., Qingqing Zhuo wrote:
> As part of the FPU isolation work documented in
> https://patchwork.freedesktop.org/series/93042/, isolate
> code that uses FPU in DSC to DML, where all FPU code
> should locate.
>
> This change does not refactor any fuctions but move code
> around.
>
> Cc: Anson Jacob <Anson.Jacob@amd.com>
> Cc: Christian König <christian.koenig@amd.com>
> Cc: Hersen Wu <hersenxs.wu@amd.com>
> Cc: Harry Wentland <harry.wentland@amd.com>
> Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
> Signed-off-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
> ---
>   drivers/gpu/drm/amd/display/dc/dml/Makefile   |   3 +
>   .../amd/display/dc/{ => dml}/dsc/qp_tables.h  |   0
>   .../drm/amd/display/dc/dml/dsc/rc_calc_fpu.c  | 287 ++++++++++++++++++
>   .../drm/amd/display/dc/dml/dsc/rc_calc_fpu.h  |  89 ++++++
>   drivers/gpu/drm/amd/display/dc/dsc/Makefile   |   8 -
>   drivers/gpu/drm/amd/display/dc/dsc/rc_calc.c  | 257 ----------------
>   drivers/gpu/drm/amd/display/dc/dsc/rc_calc.h  |  50 +--
>   .../gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c  |   1 -
>   8 files changed, 380 insertions(+), 315 deletions(-)
>   rename drivers/gpu/drm/amd/display/dc/{ => dml}/dsc/qp_tables.h (100%)
>   create mode 100644 drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.c
>   create mode 100644 drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.h
>
> diff --git a/drivers/gpu/drm/amd/display/dc/dml/Makefile b/drivers/gpu/drm/amd/display/dc/dml/Makefile
> index 56055df2e8d2..9009b92490f3 100644
> --- a/drivers/gpu/drm/amd/display/dc/dml/Makefile
> +++ b/drivers/gpu/drm/amd/display/dc/dml/Makefile
> @@ -70,6 +70,7 @@ CFLAGS_$(AMDDALPATH)/dc/dml/dcn30/display_mode_vba_30.o := $(dml_ccflags) $(fram
>   CFLAGS_$(AMDDALPATH)/dc/dml/dcn30/display_rq_dlg_calc_30.o := $(dml_ccflags)
>   CFLAGS_$(AMDDALPATH)/dc/dml/dcn31/display_mode_vba_31.o := $(dml_ccflags) $(frame_warn_flag)
>   CFLAGS_$(AMDDALPATH)/dc/dml/dcn31/display_rq_dlg_calc_31.o := $(dml_ccflags)
> +CFLAGS_$(AMDDALPATH)/dc/dml/dsc/rc_calc_fpu.o := $(dml_ccflags)
>   CFLAGS_$(AMDDALPATH)/dc/dml/display_mode_lib.o := $(dml_ccflags)
>   CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/display_mode_vba.o := $(dml_rcflags)
>   CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn2x/dcn2x.o := $(dml_rcflags)
> @@ -84,6 +85,7 @@ CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn30/display_rq_dlg_calc_30.o := $(dml_rcfla
>   CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn31/display_mode_vba_31.o := $(dml_rcflags)
>   CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn31/display_rq_dlg_calc_31.o := $(dml_rcflags)
>   CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/display_mode_lib.o := $(dml_rcflags)
> +CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dsc/rc_calc_fpu.o  := $(dml_rcflags)
>   endif
>   CFLAGS_$(AMDDALPATH)/dc/dml/dml1_display_rq_dlg_calc.o := $(dml_ccflags)
>   CFLAGS_$(AMDDALPATH)/dc/dml/display_rq_dlg_helpers.o := $(dml_ccflags)
> @@ -99,6 +101,7 @@ DML += dcn20/display_rq_dlg_calc_20v2.o dcn20/display_mode_vba_20v2.o
>   DML += dcn21/display_rq_dlg_calc_21.o dcn21/display_mode_vba_21.o
>   DML += dcn30/display_mode_vba_30.o dcn30/display_rq_dlg_calc_30.o
>   DML += dcn31/display_mode_vba_31.o dcn31/display_rq_dlg_calc_31.o
> +DML += dsc/rc_calc_fpu.o
>   endif
>   
>   AMD_DAL_DML = $(addprefix $(AMDDALPATH)/dc/dml/,$(DML))
> diff --git a/drivers/gpu/drm/amd/display/dc/dsc/qp_tables.h b/drivers/gpu/drm/amd/display/dc/dml/dsc/qp_tables.h
> similarity index 100%
> rename from drivers/gpu/drm/amd/display/dc/dsc/qp_tables.h
> rename to drivers/gpu/drm/amd/display/dc/dml/dsc/qp_tables.h
> diff --git a/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.c
> new file mode 100644
> index 000000000000..0436fc64948f
> --- /dev/null
> +++ b/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.c
> @@ -0,0 +1,287 @@
> +/*
> + * Copyright 2021 Advanced Micro Devices, Inc.
> + *
> + * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: AMD
> + *
> + */
> +
> +#include "rc_calc_fpu.h"
> +
> +#include "qp_tables.h"
> +#include "amdgpu_dm/dc_fpu.h"
> +
> +#define table_hash(mode, bpc, max_min) ((mode << 16) | (bpc << 8) | max_min)
> +
> +#define MODE_SELECT(val444, val422, val420) \
> +	(cm == CM_444 || cm == CM_RGB) ? (val444) : (cm == CM_422 ? (val422) : (val420))
> +
> +
> +#define TABLE_CASE(mode, bpc, max)   case (table_hash(mode, BPC_##bpc, max)): \
> +	table = qp_table_##mode##_##bpc##bpc_##max; \
> +	table_size = sizeof(qp_table_##mode##_##bpc##bpc_##max)/sizeof(*qp_table_##mode##_##bpc##bpc_##max); \
> +	break
> +
> +static int median3(int a, int b, int c)
> +{
> +	if (a > b)
> +		swap(a, b);
> +	if (b > c)
> +		swap(b, c);
> +	if (a > b)
> +		swap(b, c);
> +
> +	return b;
> +}
> +
> +static double dsc_roundf(double num)
> +{
> +	if (num < 0.0)
> +		num = num - 0.5;
> +	else
> +		num = num + 0.5;
> +
> +	return (int)(num);
> +}
> +
> +static double dsc_ceil(double num)
> +{
> +	double retval = (int)num;
> +
> +	if (retval != num && num > 0)
> +		retval = num + 1;
> +
> +	return (int)retval;
> +}
> +
> +static void get_qp_set(qp_set qps, enum colour_mode cm, enum bits_per_comp bpc,
> +		       enum max_min max_min, float bpp)
> +{
> +	int mode = MODE_SELECT(444, 422, 420);
> +	int sel = table_hash(mode, bpc, max_min);
> +	int table_size = 0;
> +	int index;
> +	const struct qp_entry *table = 0L;
> +
> +	// alias enum
> +	enum { min = DAL_MM_MIN, max = DAL_MM_MAX };
> +	switch (sel) {
> +		TABLE_CASE(444,  8, max);
> +		TABLE_CASE(444,  8, min);
> +		TABLE_CASE(444, 10, max);
> +		TABLE_CASE(444, 10, min);
> +		TABLE_CASE(444, 12, max);
> +		TABLE_CASE(444, 12, min);
> +		TABLE_CASE(422,  8, max);
> +		TABLE_CASE(422,  8, min);
> +		TABLE_CASE(422, 10, max);
> +		TABLE_CASE(422, 10, min);
> +		TABLE_CASE(422, 12, max);
> +		TABLE_CASE(422, 12, min);
> +		TABLE_CASE(420,  8, max);
> +		TABLE_CASE(420,  8, min);
> +		TABLE_CASE(420, 10, max);
> +		TABLE_CASE(420, 10, min);
> +		TABLE_CASE(420, 12, max);
> +		TABLE_CASE(420, 12, min);
> +	}
> +
> +	if (table == 0)
> +		return;
> +
> +	index = (bpp - table[0].bpp) * 2;
> +
> +	/* requested size is bigger than the table */
> +	if (index >= table_size) {
> +		dm_error("ERROR: Requested rc_calc to find a bpp entry that exceeds the table size\n");
> +		return;
> +	}
> +
> +	memcpy(qps, table[index].qps, sizeof(qp_set));
> +}
> +
> +static void get_ofs_set(qp_set ofs, enum colour_mode mode, float bpp)
> +{
> +	int   *p = ofs;
> +
> +	if (mode == CM_444 || mode == CM_RGB) {
> +		*p++ = (bpp <=  6) ? (0) : ((((bpp >=  8) && (bpp <= 12))) ? (2) : ((bpp >= 15) ? (10) : ((((bpp > 6) && (bpp < 8))) ? (0 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (2 + dsc_roundf((bpp - 12) * (8 / 3.0))))));
> +		*p++ = (bpp <=  6) ? (-2) : ((((bpp >=  8) && (bpp <= 12))) ? (0) : ((bpp >= 15) ? (8) : ((((bpp > 6) && (bpp < 8))) ? (-2 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (0 + dsc_roundf((bpp - 12) * (8 / 3.0))))));
> +		*p++ = (bpp <=  6) ? (-2) : ((((bpp >=  8) && (bpp <= 12))) ? (0) : ((bpp >= 15) ? (6) : ((((bpp > 6) && (bpp < 8))) ? (-2 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (0 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
> +		*p++ = (bpp <=  6) ? (-4) : ((((bpp >=  8) && (bpp <= 12))) ? (-2) : ((bpp >= 15) ? (4) : ((((bpp > 6) && (bpp < 8))) ? (-4 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (-2 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
> +		*p++ = (bpp <=  6) ? (-6) : ((((bpp >=  8) && (bpp <= 12))) ? (-4) : ((bpp >= 15) ? (2) : ((((bpp > 6) && (bpp < 8))) ? (-6 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (-4 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
> +		*p++ = (bpp <= 12) ? (-6) : ((bpp >= 15) ? (0) : (-6 + dsc_roundf((bpp - 12) * (6 / 3.0))));
> +		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-2) : (-8 + dsc_roundf((bpp - 12) * (6 / 3.0))));
> +		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-4) : (-8 + dsc_roundf((bpp - 12) * (4 / 3.0))));
> +		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-6) : (-8 + dsc_roundf((bpp - 12) * (2 / 3.0))));
> +		*p++ = (bpp <= 12) ? (-10) : ((bpp >= 15) ? (-8) : (-10 + dsc_roundf((bpp - 12) * (2 / 3.0))));
> +		*p++ = -10;
> +		*p++ = (bpp <=  6) ? (-12) : ((bpp >=  8) ? (-10) : (-12 + dsc_roundf((bpp -  6) * (2 / 2.0))));
> +		*p++ = -12;
> +		*p++ = -12;
> +		*p++ = -12;
> +	} else if (mode == CM_422) {
> +		*p++ = (bpp <=  8) ? (2) : ((bpp >= 10) ? (10) : (2 + dsc_roundf((bpp -  8) * (8 / 2.0))));
> +		*p++ = (bpp <=  8) ? (0) : ((bpp >= 10) ? (8) : (0 + dsc_roundf((bpp -  8) * (8 / 2.0))));
> +		*p++ = (bpp <=  8) ? (0) : ((bpp >= 10) ? (6) : (0 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> +		*p++ = (bpp <=  8) ? (-2) : ((bpp >= 10) ? (4) : (-2 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> +		*p++ = (bpp <=  8) ? (-4) : ((bpp >= 10) ? (2) : (-4 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> +		*p++ = (bpp <=  8) ? (-6) : ((bpp >= 10) ? (0) : (-6 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> +		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-2) : (-8 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> +		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-4) : (-8 + dsc_roundf((bpp -  8) * (4 / 2.0))));
> +		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-6) : (-8 + dsc_roundf((bpp -  8) * (2 / 2.0))));
> +		*p++ = (bpp <=  8) ? (-10) : ((bpp >= 10) ? (-8) : (-10 + dsc_roundf((bpp -  8) * (2 / 2.0))));
> +		*p++ = -10;
> +		*p++ = (bpp <=  6) ? (-12) : ((bpp >= 7) ? (-10) : (-12 + dsc_roundf((bpp -  6) * (2.0 / 1))));
> +		*p++ = -12;
> +		*p++ = -12;
> +		*p++ = -12;
> +	} else {
> +		*p++ = (bpp <=  6) ? (2) : ((bpp >=  8) ? (10) : (2 + dsc_roundf((bpp -  6) * (8 / 2.0))));
> +		*p++ = (bpp <=  6) ? (0) : ((bpp >=  8) ? (8) : (0 + dsc_roundf((bpp -  6) * (8 / 2.0))));
> +		*p++ = (bpp <=  6) ? (0) : ((bpp >=  8) ? (6) : (0 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> +		*p++ = (bpp <=  6) ? (-2) : ((bpp >=  8) ? (4) : (-2 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> +		*p++ = (bpp <=  6) ? (-4) : ((bpp >=  8) ? (2) : (-4 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> +		*p++ = (bpp <=  6) ? (-6) : ((bpp >=  8) ? (0) : (-6 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> +		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-2) : (-8 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> +		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-4) : (-8 + dsc_roundf((bpp -  6) * (4 / 2.0))));
> +		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-6) : (-8 + dsc_roundf((bpp -  6) * (2 / 2.0))));
> +		*p++ = (bpp <=  6) ? (-10) : ((bpp >=  8) ? (-8) : (-10 + dsc_roundf((bpp -  6) * (2 / 2.0))));
> +		*p++ = -10;
> +		*p++ = (bpp <=  4) ? (-12) : ((bpp >=  5) ? (-10) : (-12 + dsc_roundf((bpp -  4) * (2 / 1.0))));
> +		*p++ = -12;
> +		*p++ = -12;
> +		*p++ = -12;
> +	}
> +}
> +
> +void _do_calc_rc_params(struct rc_params *rc, enum colour_mode cm,
> +			       enum bits_per_comp bpc, u16 drm_bpp,
> +			       bool is_navite_422_or_420,
> +			       int slice_width, int slice_height,
> +			       int minor_version)
> +{
> +	float bpp;
> +	float bpp_group;
> +	float initial_xmit_delay_factor;
> +	int padding_pixels;
> +	int i;
> +
> +	dc_assert_fp_enabled();
> +
> +	bpp = ((float)drm_bpp / 16.0);
> +	/* in native_422 or native_420 modes, the bits_per_pixel is double the
> +	 * target bpp (the latter is what calc_rc_params expects)
> +	 */
> +	if (is_navite_422_or_420)
> +		bpp /= 2.0;
> +
> +	rc->rc_quant_incr_limit0 = ((bpc == BPC_8) ? 11 : (bpc == BPC_10 ? 15 : 19)) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> +	rc->rc_quant_incr_limit1 = ((bpc == BPC_8) ? 11 : (bpc == BPC_10 ? 15 : 19)) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> +
> +	bpp_group = MODE_SELECT(bpp, bpp * 2.0, bpp * 2.0);
> +
> +	switch (cm) {
> +	case CM_420:
> +		rc->initial_fullness_offset = (bpp >=  6) ? (2048) : ((bpp <=  4) ? (6144) : ((((bpp >  4) && (bpp <=  5))) ? (6144 - dsc_roundf((bpp - 4) * (512))) : (5632 - dsc_roundf((bpp -  5) * (3584)))));
> +		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)((3 * bpc * 3) - (3 * bpp_group)));
> +		rc->second_line_bpg_offset  = median3(0, 12, (int)((3 * bpc * 3) - (3 * bpp_group)));
> +		break;
> +	case CM_422:
> +		rc->initial_fullness_offset = (bpp >=  8) ? (2048) : ((bpp <=  7) ? (5632) : (5632 - dsc_roundf((bpp - 7) * (3584))));
> +		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)((3 * bpc * 4) - (3 * bpp_group)));
> +		rc->second_line_bpg_offset  = 0;
> +		break;
> +	case CM_444:
> +	case CM_RGB:
> +		rc->initial_fullness_offset = (bpp >= 12) ? (2048) : ((bpp <=  8) ? (6144) : ((((bpp >  8) && (bpp <= 10))) ? (6144 - dsc_roundf((bpp - 8) * (512 / 2))) : (5632 - dsc_roundf((bpp - 10) * (3584 / 2)))));
> +		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)(((3 * bpc + (cm == CM_444 ? 0 : 2)) * 3) - (3 * bpp_group)));
> +		rc->second_line_bpg_offset  = 0;
> +		break;
> +	}
> +
> +	initial_xmit_delay_factor = (cm == CM_444 || cm == CM_RGB) ? 1.0 : 2.0;
> +	rc->initial_xmit_delay = dsc_roundf(8192.0/2.0/bpp/initial_xmit_delay_factor);
> +
> +	if (cm == CM_422 || cm == CM_420)
> +		slice_width /= 2;
> +
> +	padding_pixels = ((slice_width % 3) != 0) ? (3 - (slice_width % 3)) * (rc->initial_xmit_delay / slice_width) : 0;
> +	if (3 * bpp_group >= (((rc->initial_xmit_delay + 2) / 3) * (3 + (cm == CM_422)))) {
> +		if ((rc->initial_xmit_delay + padding_pixels) % 3 == 1)
> +			rc->initial_xmit_delay++;
> +	}
> +
> +	rc->flatness_min_qp     = ((bpc == BPC_8) ?  (3) : ((bpc == BPC_10) ? (7)  : (11))) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> +	rc->flatness_max_qp     = ((bpc == BPC_8) ? (12) : ((bpc == BPC_10) ? (16) : (20))) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> +	rc->flatness_det_thresh = 2 << (bpc - 8);
> +
> +	get_qp_set(rc->qp_min, cm, bpc, DAL_MM_MIN, bpp);
> +	get_qp_set(rc->qp_max, cm, bpc, DAL_MM_MAX, bpp);
> +	if (cm == CM_444 && minor_version == 1) {
> +		for (i = 0; i < QP_SET_SIZE; ++i) {
> +			rc->qp_min[i] = rc->qp_min[i] > 0 ? rc->qp_min[i] - 1 : 0;
> +			rc->qp_max[i] = rc->qp_max[i] > 0 ? rc->qp_max[i] - 1 : 0;
> +		}
> +	}
> +	get_ofs_set(rc->ofs, cm, bpp);
> +
> +	/* fixed parameters */
> +	rc->rc_model_size    = 8192;
> +	rc->rc_edge_factor   = 6;
> +	rc->rc_tgt_offset_hi = 3;
> +	rc->rc_tgt_offset_lo = 3;
> +
> +	rc->rc_buf_thresh[0] = 896;
> +	rc->rc_buf_thresh[1] = 1792;
> +	rc->rc_buf_thresh[2] = 2688;
> +	rc->rc_buf_thresh[3] = 3584;
> +	rc->rc_buf_thresh[4] = 4480;
> +	rc->rc_buf_thresh[5] = 5376;
> +	rc->rc_buf_thresh[6] = 6272;
> +	rc->rc_buf_thresh[7] = 6720;
> +	rc->rc_buf_thresh[8] = 7168;
> +	rc->rc_buf_thresh[9] = 7616;
> +	rc->rc_buf_thresh[10] = 7744;
> +	rc->rc_buf_thresh[11] = 7872;
> +	rc->rc_buf_thresh[12] = 8000;
> +	rc->rc_buf_thresh[13] = 8064;
> +}
> +
> +u32 _do_bytes_per_pixel_calc(int slice_width, u16 drm_bpp,
> +				    bool is_navite_422_or_420)
> +{
> +	float bpp;
> +	u32 bytes_per_pixel;
> +	double d_bytes_per_pixel;
> +
> +	dc_assert_fp_enabled();
> +
> +	bpp = ((float)drm_bpp / 16.0);
> +	d_bytes_per_pixel = dsc_ceil(bpp * slice_width / 8.0) / slice_width;
> +	// TODO: Make sure the formula for calculating this is precise (ceiling
> +	// vs. floor, and at what point they should be applied)
> +	if (is_navite_422_or_420)
> +		d_bytes_per_pixel /= 2;
> +
> +	bytes_per_pixel = (u32)dsc_ceil(d_bytes_per_pixel * 0x10000000);
> +
> +	return bytes_per_pixel;
> +}
> \ No newline at end of file
> diff --git a/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.h b/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.h
> new file mode 100644
> index 000000000000..d3900ff7fa89
> --- /dev/null
> +++ b/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.h
> @@ -0,0 +1,89 @@
> +/*
> + * Copyright 2021 Advanced Micro Devices, Inc.
> + *
> + * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: AMD
> + *
> + */
> +
> +#ifndef __RC_CALC_FPU_H__
> +#define __RC_CALC_FPU_H__
> +
> +#include "os_types.h"
> +
> +#define QP_SET_SIZE 15
> +
> +typedef int qp_set[QP_SET_SIZE];
> +
> +struct rc_params {
> +	int      rc_quant_incr_limit0;
> +	int      rc_quant_incr_limit1;
> +	int      initial_fullness_offset;
> +	int      initial_xmit_delay;
> +	int      first_line_bpg_offset;
> +	int      second_line_bpg_offset;
> +	int      flatness_min_qp;
> +	int      flatness_max_qp;
> +	int      flatness_det_thresh;
> +	qp_set   qp_min;
> +	qp_set   qp_max;
> +	qp_set   ofs;
> +	int      rc_model_size;
> +	int      rc_edge_factor;
> +	int      rc_tgt_offset_hi;
> +	int      rc_tgt_offset_lo;
> +	int      rc_buf_thresh[QP_SET_SIZE - 1];
> +};
> +
> +enum colour_mode {
> +	CM_RGB,   /* 444 RGB */
> +	CM_444,   /* 444 YUV or simple 422 */
> +	CM_422,   /* native 422 */
> +	CM_420    /* native 420 */
> +};
> +
> +enum bits_per_comp {
> +	BPC_8  =  8,
> +	BPC_10 = 10,
> +	BPC_12 = 12
> +};
> +
> +enum max_min {
> +	DAL_MM_MIN = 0,
> +	DAL_MM_MAX = 1
> +};
> +
> +struct qp_entry {
> +	float         bpp;
> +	const qp_set  qps;
> +};
> +
> +typedef struct qp_entry qp_table[];
> +
> +u32 _do_bytes_per_pixel_calc(int slice_width, u16 drm_bpp,
> +				    bool is_navite_422_or_420);
> +
> +void _do_calc_rc_params(struct rc_params *rc, enum colour_mode cm,
> +			       enum bits_per_comp bpc, u16 drm_bpp,
> +			       bool is_navite_422_or_420,
> +			       int slice_width, int slice_height,
> +			       int minor_version);
> +
> +#endif
> \ No newline at end of file
> diff --git a/drivers/gpu/drm/amd/display/dc/dsc/Makefile b/drivers/gpu/drm/amd/display/dc/dsc/Makefile
> index 8d31eb75c6a6..8d01b8a9fc6a 100644
> --- a/drivers/gpu/drm/amd/display/dc/dsc/Makefile
> +++ b/drivers/gpu/drm/amd/display/dc/dsc/Makefile
> @@ -2,14 +2,6 @@
>   #
>   # Makefile for the 'dsc' sub-component of DAL.
>   
> -ifdef CONFIG_X86
> -dsc_ccflags := -mhard-float -msse
> -endif
> -
> -ifdef CONFIG_PPC64
> -dsc_ccflags := -mhard-float -maltivec
> -endif
> -
>   ifdef CONFIG_CC_IS_GCC
>   ifeq ($(call cc-ifversion, -lt, 0701, y), y)
>   IS_OLD_GCC = 1
> diff --git a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.c b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.c
> index 7b294f637881..87acec33b8d8 100644
> --- a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.c
> +++ b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.c
> @@ -25,264 +25,7 @@
>    */
>   #include <drm/drm_dsc.h>
>   
> -#include "os_types.h"
>   #include "rc_calc.h"
> -#include "qp_tables.h"
> -
> -#define table_hash(mode, bpc, max_min) ((mode << 16) | (bpc << 8) | max_min)
> -
> -#define MODE_SELECT(val444, val422, val420) \
> -	(cm == CM_444 || cm == CM_RGB) ? (val444) : (cm == CM_422 ? (val422) : (val420))
> -
> -
> -#define TABLE_CASE(mode, bpc, max)   case (table_hash(mode, BPC_##bpc, max)): \
> -	table = qp_table_##mode##_##bpc##bpc_##max; \
> -	table_size = sizeof(qp_table_##mode##_##bpc##bpc_##max)/sizeof(*qp_table_##mode##_##bpc##bpc_##max); \
> -	break
> -
> -
> -static void get_qp_set(qp_set qps, enum colour_mode cm, enum bits_per_comp bpc,
> -		       enum max_min max_min, float bpp)
> -{
> -	int mode = MODE_SELECT(444, 422, 420);
> -	int sel = table_hash(mode, bpc, max_min);
> -	int table_size = 0;
> -	int index;
> -	const struct qp_entry *table = 0L;
> -
> -	// alias enum
> -	enum { min = DAL_MM_MIN, max = DAL_MM_MAX };
> -	switch (sel) {
> -		TABLE_CASE(444,  8, max);
> -		TABLE_CASE(444,  8, min);
> -		TABLE_CASE(444, 10, max);
> -		TABLE_CASE(444, 10, min);
> -		TABLE_CASE(444, 12, max);
> -		TABLE_CASE(444, 12, min);
> -		TABLE_CASE(422,  8, max);
> -		TABLE_CASE(422,  8, min);
> -		TABLE_CASE(422, 10, max);
> -		TABLE_CASE(422, 10, min);
> -		TABLE_CASE(422, 12, max);
> -		TABLE_CASE(422, 12, min);
> -		TABLE_CASE(420,  8, max);
> -		TABLE_CASE(420,  8, min);
> -		TABLE_CASE(420, 10, max);
> -		TABLE_CASE(420, 10, min);
> -		TABLE_CASE(420, 12, max);
> -		TABLE_CASE(420, 12, min);
> -	}
> -
> -	if (table == 0)
> -		return;
> -
> -	index = (bpp - table[0].bpp) * 2;
> -
> -	/* requested size is bigger than the table */
> -	if (index >= table_size) {
> -		dm_error("ERROR: Requested rc_calc to find a bpp entry that exceeds the table size\n");
> -		return;
> -	}
> -
> -	memcpy(qps, table[index].qps, sizeof(qp_set));
> -}
> -
> -static double dsc_roundf(double num)
> -{
> -	if (num < 0.0)
> -		num = num - 0.5;
> -	else
> -		num = num + 0.5;
> -
> -	return (int)(num);
> -}
> -
> -static double dsc_ceil(double num)
> -{
> -	double retval = (int)num;
> -
> -	if (retval != num && num > 0)
> -		retval = num + 1;
> -
> -	return (int)retval;
> -}
> -
> -static void get_ofs_set(qp_set ofs, enum colour_mode mode, float bpp)
> -{
> -	int   *p = ofs;
> -
> -	if (mode == CM_444 || mode == CM_RGB) {
> -		*p++ = (bpp <=  6) ? (0) : ((((bpp >=  8) && (bpp <= 12))) ? (2) : ((bpp >= 15) ? (10) : ((((bpp > 6) && (bpp < 8))) ? (0 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (2 + dsc_roundf((bpp - 12) * (8 / 3.0))))));
> -		*p++ = (bpp <=  6) ? (-2) : ((((bpp >=  8) && (bpp <= 12))) ? (0) : ((bpp >= 15) ? (8) : ((((bpp > 6) && (bpp < 8))) ? (-2 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (0 + dsc_roundf((bpp - 12) * (8 / 3.0))))));
> -		*p++ = (bpp <=  6) ? (-2) : ((((bpp >=  8) && (bpp <= 12))) ? (0) : ((bpp >= 15) ? (6) : ((((bpp > 6) && (bpp < 8))) ? (-2 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (0 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
> -		*p++ = (bpp <=  6) ? (-4) : ((((bpp >=  8) && (bpp <= 12))) ? (-2) : ((bpp >= 15) ? (4) : ((((bpp > 6) && (bpp < 8))) ? (-4 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (-2 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
> -		*p++ = (bpp <=  6) ? (-6) : ((((bpp >=  8) && (bpp <= 12))) ? (-4) : ((bpp >= 15) ? (2) : ((((bpp > 6) && (bpp < 8))) ? (-6 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (-4 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
> -		*p++ = (bpp <= 12) ? (-6) : ((bpp >= 15) ? (0) : (-6 + dsc_roundf((bpp - 12) * (6 / 3.0))));
> -		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-2) : (-8 + dsc_roundf((bpp - 12) * (6 / 3.0))));
> -		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-4) : (-8 + dsc_roundf((bpp - 12) * (4 / 3.0))));
> -		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-6) : (-8 + dsc_roundf((bpp - 12) * (2 / 3.0))));
> -		*p++ = (bpp <= 12) ? (-10) : ((bpp >= 15) ? (-8) : (-10 + dsc_roundf((bpp - 12) * (2 / 3.0))));
> -		*p++ = -10;
> -		*p++ = (bpp <=  6) ? (-12) : ((bpp >=  8) ? (-10) : (-12 + dsc_roundf((bpp -  6) * (2 / 2.0))));
> -		*p++ = -12;
> -		*p++ = -12;
> -		*p++ = -12;
> -	} else if (mode == CM_422) {
> -		*p++ = (bpp <=  8) ? (2) : ((bpp >= 10) ? (10) : (2 + dsc_roundf((bpp -  8) * (8 / 2.0))));
> -		*p++ = (bpp <=  8) ? (0) : ((bpp >= 10) ? (8) : (0 + dsc_roundf((bpp -  8) * (8 / 2.0))));
> -		*p++ = (bpp <=  8) ? (0) : ((bpp >= 10) ? (6) : (0 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> -		*p++ = (bpp <=  8) ? (-2) : ((bpp >= 10) ? (4) : (-2 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> -		*p++ = (bpp <=  8) ? (-4) : ((bpp >= 10) ? (2) : (-4 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> -		*p++ = (bpp <=  8) ? (-6) : ((bpp >= 10) ? (0) : (-6 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> -		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-2) : (-8 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> -		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-4) : (-8 + dsc_roundf((bpp -  8) * (4 / 2.0))));
> -		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-6) : (-8 + dsc_roundf((bpp -  8) * (2 / 2.0))));
> -		*p++ = (bpp <=  8) ? (-10) : ((bpp >= 10) ? (-8) : (-10 + dsc_roundf((bpp -  8) * (2 / 2.0))));
> -		*p++ = -10;
> -		*p++ = (bpp <=  6) ? (-12) : ((bpp >= 7) ? (-10) : (-12 + dsc_roundf((bpp -  6) * (2.0 / 1))));
> -		*p++ = -12;
> -		*p++ = -12;
> -		*p++ = -12;
> -	} else {
> -		*p++ = (bpp <=  6) ? (2) : ((bpp >=  8) ? (10) : (2 + dsc_roundf((bpp -  6) * (8 / 2.0))));
> -		*p++ = (bpp <=  6) ? (0) : ((bpp >=  8) ? (8) : (0 + dsc_roundf((bpp -  6) * (8 / 2.0))));
> -		*p++ = (bpp <=  6) ? (0) : ((bpp >=  8) ? (6) : (0 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> -		*p++ = (bpp <=  6) ? (-2) : ((bpp >=  8) ? (4) : (-2 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> -		*p++ = (bpp <=  6) ? (-4) : ((bpp >=  8) ? (2) : (-4 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> -		*p++ = (bpp <=  6) ? (-6) : ((bpp >=  8) ? (0) : (-6 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> -		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-2) : (-8 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> -		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-4) : (-8 + dsc_roundf((bpp -  6) * (4 / 2.0))));
> -		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-6) : (-8 + dsc_roundf((bpp -  6) * (2 / 2.0))));
> -		*p++ = (bpp <=  6) ? (-10) : ((bpp >=  8) ? (-8) : (-10 + dsc_roundf((bpp -  6) * (2 / 2.0))));
> -		*p++ = -10;
> -		*p++ = (bpp <=  4) ? (-12) : ((bpp >=  5) ? (-10) : (-12 + dsc_roundf((bpp -  4) * (2 / 1.0))));
> -		*p++ = -12;
> -		*p++ = -12;
> -		*p++ = -12;
> -	}
> -}
> -
> -static int median3(int a, int b, int c)
> -{
> -	if (a > b)
> -		swap(a, b);
> -	if (b > c)
> -		swap(b, c);
> -	if (a > b)
> -		swap(b, c);
> -
> -	return b;
> -}
> -
> -static void _do_calc_rc_params(struct rc_params *rc, enum colour_mode cm,
> -			       enum bits_per_comp bpc, u16 drm_bpp,
> -			       bool is_navite_422_or_420,
> -			       int slice_width, int slice_height,
> -			       int minor_version)
> -{
> -	float bpp;
> -	float bpp_group;
> -	float initial_xmit_delay_factor;
> -	int padding_pixels;
> -	int i;
> -
> -	bpp = ((float)drm_bpp / 16.0);
> -	/* in native_422 or native_420 modes, the bits_per_pixel is double the
> -	 * target bpp (the latter is what calc_rc_params expects)
> -	 */
> -	if (is_navite_422_or_420)
> -		bpp /= 2.0;
> -
> -	rc->rc_quant_incr_limit0 = ((bpc == BPC_8) ? 11 : (bpc == BPC_10 ? 15 : 19)) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> -	rc->rc_quant_incr_limit1 = ((bpc == BPC_8) ? 11 : (bpc == BPC_10 ? 15 : 19)) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> -
> -	bpp_group = MODE_SELECT(bpp, bpp * 2.0, bpp * 2.0);
> -
> -	switch (cm) {
> -	case CM_420:
> -		rc->initial_fullness_offset = (bpp >=  6) ? (2048) : ((bpp <=  4) ? (6144) : ((((bpp >  4) && (bpp <=  5))) ? (6144 - dsc_roundf((bpp - 4) * (512))) : (5632 - dsc_roundf((bpp -  5) * (3584)))));
> -		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)((3 * bpc * 3) - (3 * bpp_group)));
> -		rc->second_line_bpg_offset  = median3(0, 12, (int)((3 * bpc * 3) - (3 * bpp_group)));
> -		break;
> -	case CM_422:
> -		rc->initial_fullness_offset = (bpp >=  8) ? (2048) : ((bpp <=  7) ? (5632) : (5632 - dsc_roundf((bpp - 7) * (3584))));
> -		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)((3 * bpc * 4) - (3 * bpp_group)));
> -		rc->second_line_bpg_offset  = 0;
> -		break;
> -	case CM_444:
> -	case CM_RGB:
> -		rc->initial_fullness_offset = (bpp >= 12) ? (2048) : ((bpp <=  8) ? (6144) : ((((bpp >  8) && (bpp <= 10))) ? (6144 - dsc_roundf((bpp - 8) * (512 / 2))) : (5632 - dsc_roundf((bpp - 10) * (3584 / 2)))));
> -		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)(((3 * bpc + (cm == CM_444 ? 0 : 2)) * 3) - (3 * bpp_group)));
> -		rc->second_line_bpg_offset  = 0;
> -		break;
> -	}
> -
> -	initial_xmit_delay_factor = (cm == CM_444 || cm == CM_RGB) ? 1.0 : 2.0;
> -	rc->initial_xmit_delay = dsc_roundf(8192.0/2.0/bpp/initial_xmit_delay_factor);
> -
> -	if (cm == CM_422 || cm == CM_420)
> -		slice_width /= 2;
> -
> -	padding_pixels = ((slice_width % 3) != 0) ? (3 - (slice_width % 3)) * (rc->initial_xmit_delay / slice_width) : 0;
> -	if (3 * bpp_group >= (((rc->initial_xmit_delay + 2) / 3) * (3 + (cm == CM_422)))) {
> -		if ((rc->initial_xmit_delay + padding_pixels) % 3 == 1)
> -			rc->initial_xmit_delay++;
> -	}
> -
> -	rc->flatness_min_qp     = ((bpc == BPC_8) ?  (3) : ((bpc == BPC_10) ? (7)  : (11))) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> -	rc->flatness_max_qp     = ((bpc == BPC_8) ? (12) : ((bpc == BPC_10) ? (16) : (20))) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> -	rc->flatness_det_thresh = 2 << (bpc - 8);
> -
> -	get_qp_set(rc->qp_min, cm, bpc, DAL_MM_MIN, bpp);
> -	get_qp_set(rc->qp_max, cm, bpc, DAL_MM_MAX, bpp);
> -	if (cm == CM_444 && minor_version == 1) {
> -		for (i = 0; i < QP_SET_SIZE; ++i) {
> -			rc->qp_min[i] = rc->qp_min[i] > 0 ? rc->qp_min[i] - 1 : 0;
> -			rc->qp_max[i] = rc->qp_max[i] > 0 ? rc->qp_max[i] - 1 : 0;
> -		}
> -	}
> -	get_ofs_set(rc->ofs, cm, bpp);
> -
> -	/* fixed parameters */
> -	rc->rc_model_size    = 8192;
> -	rc->rc_edge_factor   = 6;
> -	rc->rc_tgt_offset_hi = 3;
> -	rc->rc_tgt_offset_lo = 3;
> -
> -	rc->rc_buf_thresh[0] = 896;
> -	rc->rc_buf_thresh[1] = 1792;
> -	rc->rc_buf_thresh[2] = 2688;
> -	rc->rc_buf_thresh[3] = 3584;
> -	rc->rc_buf_thresh[4] = 4480;
> -	rc->rc_buf_thresh[5] = 5376;
> -	rc->rc_buf_thresh[6] = 6272;
> -	rc->rc_buf_thresh[7] = 6720;
> -	rc->rc_buf_thresh[8] = 7168;
> -	rc->rc_buf_thresh[9] = 7616;
> -	rc->rc_buf_thresh[10] = 7744;
> -	rc->rc_buf_thresh[11] = 7872;
> -	rc->rc_buf_thresh[12] = 8000;
> -	rc->rc_buf_thresh[13] = 8064;
> -}
> -
> -static u32 _do_bytes_per_pixel_calc(int slice_width, u16 drm_bpp,
> -				    bool is_navite_422_or_420)
> -{
> -	float bpp;
> -	u32 bytes_per_pixel;
> -	double d_bytes_per_pixel;
> -
> -	bpp = ((float)drm_bpp / 16.0);
> -	d_bytes_per_pixel = dsc_ceil(bpp * slice_width / 8.0) / slice_width;
> -	// TODO: Make sure the formula for calculating this is precise (ceiling
> -	// vs. floor, and at what point they should be applied)
> -	if (is_navite_422_or_420)
> -		d_bytes_per_pixel /= 2;
> -
> -	bytes_per_pixel = (u32)dsc_ceil(d_bytes_per_pixel * 0x10000000);
> -
> -	return bytes_per_pixel;
> -}
>   
>   /**
>    * calc_rc_params - reads the user's cmdline mode
> diff --git a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.h b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.h
> index 262f06afcbf9..c2340e001b57 100644
> --- a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.h
> +++ b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.h
> @@ -27,55 +27,7 @@
>   #ifndef __RC_CALC_H__
>   #define __RC_CALC_H__
>   
> -
> -#define QP_SET_SIZE 15
> -
> -typedef int qp_set[QP_SET_SIZE];
> -
> -struct rc_params {
> -	int      rc_quant_incr_limit0;
> -	int      rc_quant_incr_limit1;
> -	int      initial_fullness_offset;
> -	int      initial_xmit_delay;
> -	int      first_line_bpg_offset;
> -	int      second_line_bpg_offset;
> -	int      flatness_min_qp;
> -	int      flatness_max_qp;
> -	int      flatness_det_thresh;
> -	qp_set   qp_min;
> -	qp_set   qp_max;
> -	qp_set   ofs;
> -	int      rc_model_size;
> -	int      rc_edge_factor;
> -	int      rc_tgt_offset_hi;
> -	int      rc_tgt_offset_lo;
> -	int      rc_buf_thresh[QP_SET_SIZE - 1];
> -};
> -
> -enum colour_mode {
> -	CM_RGB,   /* 444 RGB */
> -	CM_444,   /* 444 YUV or simple 422 */
> -	CM_422,   /* native 422 */
> -	CM_420    /* native 420 */
> -};
> -
> -enum bits_per_comp {
> -	BPC_8  =  8,
> -	BPC_10 = 10,
> -	BPC_12 = 12
> -};
> -
> -enum max_min {
> -	DAL_MM_MIN = 0,
> -	DAL_MM_MAX = 1
> -};
> -
> -struct qp_entry {
> -	float         bpp;
> -	const qp_set  qps;
> -};
> -
> -typedef struct qp_entry qp_table[];
> +#include "dml/dsc/rc_calc_fpu.h"
>   
>   void calc_rc_params(struct rc_params *rc, const struct drm_dsc_config *pps);
>   u32 calc_dsc_bytes_per_pixel(const struct drm_dsc_config *pps);
> diff --git a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c
> index ef830aded5b1..1e19dd674e5a 100644
> --- a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c
> +++ b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c
> @@ -22,7 +22,6 @@
>    * Authors: AMD
>    *
>    */
> -#include "os_types.h"
>   #include <drm/drm_dsc.h>
>   #include "dscc_types.h"
>   #include "rc_calc.h"

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH] drm/amd/display: move FPU associated DSC code to DML folder
  2021-09-07 14:32 [PATCH] drm/amd/display: move FPU associated DSC code to DML folder Qingqing Zhuo
  2021-09-14 15:52 ` Anson Jacob
@ 2021-09-17 15:07 ` Rodrigo Siqueira
  2021-09-20  7:36 ` Christian König
  2 siblings, 0 replies; 4+ messages in thread
From: Rodrigo Siqueira @ 2021-09-17 15:07 UTC (permalink / raw)
  To: Qingqing Zhuo
  Cc: amd-gfx, Anson Jacob, Christian König, Hersen Wu, Harry Wentland

Hi Lilian,

This change lgtm.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>

On 09/07, Qingqing Zhuo wrote:
> As part of the FPU isolation work documented in
> https://patchwork.freedesktop.org/series/93042/, isolate
> code that uses FPU in DSC to DML, where all FPU code
> should locate.
> 
> This change does not refactor any fuctions but move code
> around.
> 
> Cc: Anson Jacob <Anson.Jacob@amd.com>
> Cc: Christian König <christian.koenig@amd.com>
> Cc: Hersen Wu <hersenxs.wu@amd.com>
> Cc: Harry Wentland <harry.wentland@amd.com>
> Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
> Signed-off-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
> ---
>  drivers/gpu/drm/amd/display/dc/dml/Makefile   |   3 +
>  .../amd/display/dc/{ => dml}/dsc/qp_tables.h  |   0
>  .../drm/amd/display/dc/dml/dsc/rc_calc_fpu.c  | 287 ++++++++++++++++++
>  .../drm/amd/display/dc/dml/dsc/rc_calc_fpu.h  |  89 ++++++
>  drivers/gpu/drm/amd/display/dc/dsc/Makefile   |   8 -
>  drivers/gpu/drm/amd/display/dc/dsc/rc_calc.c  | 257 ----------------
>  drivers/gpu/drm/amd/display/dc/dsc/rc_calc.h  |  50 +--
>  .../gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c  |   1 -
>  8 files changed, 380 insertions(+), 315 deletions(-)
>  rename drivers/gpu/drm/amd/display/dc/{ => dml}/dsc/qp_tables.h (100%)
>  create mode 100644 drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.c
>  create mode 100644 drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.h
> 
> diff --git a/drivers/gpu/drm/amd/display/dc/dml/Makefile b/drivers/gpu/drm/amd/display/dc/dml/Makefile
> index 56055df2e8d2..9009b92490f3 100644
> --- a/drivers/gpu/drm/amd/display/dc/dml/Makefile
> +++ b/drivers/gpu/drm/amd/display/dc/dml/Makefile
> @@ -70,6 +70,7 @@ CFLAGS_$(AMDDALPATH)/dc/dml/dcn30/display_mode_vba_30.o := $(dml_ccflags) $(fram
>  CFLAGS_$(AMDDALPATH)/dc/dml/dcn30/display_rq_dlg_calc_30.o := $(dml_ccflags)
>  CFLAGS_$(AMDDALPATH)/dc/dml/dcn31/display_mode_vba_31.o := $(dml_ccflags) $(frame_warn_flag)
>  CFLAGS_$(AMDDALPATH)/dc/dml/dcn31/display_rq_dlg_calc_31.o := $(dml_ccflags)
> +CFLAGS_$(AMDDALPATH)/dc/dml/dsc/rc_calc_fpu.o := $(dml_ccflags)
>  CFLAGS_$(AMDDALPATH)/dc/dml/display_mode_lib.o := $(dml_ccflags)
>  CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/display_mode_vba.o := $(dml_rcflags)
>  CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn2x/dcn2x.o := $(dml_rcflags)
> @@ -84,6 +85,7 @@ CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn30/display_rq_dlg_calc_30.o := $(dml_rcfla
>  CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn31/display_mode_vba_31.o := $(dml_rcflags)
>  CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn31/display_rq_dlg_calc_31.o := $(dml_rcflags)
>  CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/display_mode_lib.o := $(dml_rcflags)
> +CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dsc/rc_calc_fpu.o  := $(dml_rcflags)
>  endif
>  CFLAGS_$(AMDDALPATH)/dc/dml/dml1_display_rq_dlg_calc.o := $(dml_ccflags)
>  CFLAGS_$(AMDDALPATH)/dc/dml/display_rq_dlg_helpers.o := $(dml_ccflags)
> @@ -99,6 +101,7 @@ DML += dcn20/display_rq_dlg_calc_20v2.o dcn20/display_mode_vba_20v2.o
>  DML += dcn21/display_rq_dlg_calc_21.o dcn21/display_mode_vba_21.o
>  DML += dcn30/display_mode_vba_30.o dcn30/display_rq_dlg_calc_30.o
>  DML += dcn31/display_mode_vba_31.o dcn31/display_rq_dlg_calc_31.o
> +DML += dsc/rc_calc_fpu.o
>  endif
>  
>  AMD_DAL_DML = $(addprefix $(AMDDALPATH)/dc/dml/,$(DML))
> diff --git a/drivers/gpu/drm/amd/display/dc/dsc/qp_tables.h b/drivers/gpu/drm/amd/display/dc/dml/dsc/qp_tables.h
> similarity index 100%
> rename from drivers/gpu/drm/amd/display/dc/dsc/qp_tables.h
> rename to drivers/gpu/drm/amd/display/dc/dml/dsc/qp_tables.h
> diff --git a/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.c
> new file mode 100644
> index 000000000000..0436fc64948f
> --- /dev/null
> +++ b/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.c
> @@ -0,0 +1,287 @@
> +/*
> + * Copyright 2021 Advanced Micro Devices, Inc.
> + *
> + * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: AMD
> + *
> + */
> +
> +#include "rc_calc_fpu.h"
> +
> +#include "qp_tables.h"
> +#include "amdgpu_dm/dc_fpu.h"
> +
> +#define table_hash(mode, bpc, max_min) ((mode << 16) | (bpc << 8) | max_min)
> +
> +#define MODE_SELECT(val444, val422, val420) \
> +	(cm == CM_444 || cm == CM_RGB) ? (val444) : (cm == CM_422 ? (val422) : (val420))
> +
> +
> +#define TABLE_CASE(mode, bpc, max)   case (table_hash(mode, BPC_##bpc, max)): \
> +	table = qp_table_##mode##_##bpc##bpc_##max; \
> +	table_size = sizeof(qp_table_##mode##_##bpc##bpc_##max)/sizeof(*qp_table_##mode##_##bpc##bpc_##max); \
> +	break
> +
> +static int median3(int a, int b, int c)
> +{
> +	if (a > b)
> +		swap(a, b);
> +	if (b > c)
> +		swap(b, c);
> +	if (a > b)
> +		swap(b, c);
> +
> +	return b;
> +}
> +
> +static double dsc_roundf(double num)
> +{
> +	if (num < 0.0)
> +		num = num - 0.5;
> +	else
> +		num = num + 0.5;
> +
> +	return (int)(num);
> +}
> +
> +static double dsc_ceil(double num)
> +{
> +	double retval = (int)num;
> +
> +	if (retval != num && num > 0)
> +		retval = num + 1;
> +
> +	return (int)retval;
> +}
> +
> +static void get_qp_set(qp_set qps, enum colour_mode cm, enum bits_per_comp bpc,
> +		       enum max_min max_min, float bpp)
> +{
> +	int mode = MODE_SELECT(444, 422, 420);
> +	int sel = table_hash(mode, bpc, max_min);
> +	int table_size = 0;
> +	int index;
> +	const struct qp_entry *table = 0L;
> +
> +	// alias enum
> +	enum { min = DAL_MM_MIN, max = DAL_MM_MAX };
> +	switch (sel) {
> +		TABLE_CASE(444,  8, max);
> +		TABLE_CASE(444,  8, min);
> +		TABLE_CASE(444, 10, max);
> +		TABLE_CASE(444, 10, min);
> +		TABLE_CASE(444, 12, max);
> +		TABLE_CASE(444, 12, min);
> +		TABLE_CASE(422,  8, max);
> +		TABLE_CASE(422,  8, min);
> +		TABLE_CASE(422, 10, max);
> +		TABLE_CASE(422, 10, min);
> +		TABLE_CASE(422, 12, max);
> +		TABLE_CASE(422, 12, min);
> +		TABLE_CASE(420,  8, max);
> +		TABLE_CASE(420,  8, min);
> +		TABLE_CASE(420, 10, max);
> +		TABLE_CASE(420, 10, min);
> +		TABLE_CASE(420, 12, max);
> +		TABLE_CASE(420, 12, min);
> +	}
> +
> +	if (table == 0)
> +		return;
> +
> +	index = (bpp - table[0].bpp) * 2;
> +
> +	/* requested size is bigger than the table */
> +	if (index >= table_size) {
> +		dm_error("ERROR: Requested rc_calc to find a bpp entry that exceeds the table size\n");
> +		return;
> +	}
> +
> +	memcpy(qps, table[index].qps, sizeof(qp_set));
> +}
> +
> +static void get_ofs_set(qp_set ofs, enum colour_mode mode, float bpp)
> +{
> +	int   *p = ofs;
> +
> +	if (mode == CM_444 || mode == CM_RGB) {
> +		*p++ = (bpp <=  6) ? (0) : ((((bpp >=  8) && (bpp <= 12))) ? (2) : ((bpp >= 15) ? (10) : ((((bpp > 6) && (bpp < 8))) ? (0 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (2 + dsc_roundf((bpp - 12) * (8 / 3.0))))));
> +		*p++ = (bpp <=  6) ? (-2) : ((((bpp >=  8) && (bpp <= 12))) ? (0) : ((bpp >= 15) ? (8) : ((((bpp > 6) && (bpp < 8))) ? (-2 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (0 + dsc_roundf((bpp - 12) * (8 / 3.0))))));
> +		*p++ = (bpp <=  6) ? (-2) : ((((bpp >=  8) && (bpp <= 12))) ? (0) : ((bpp >= 15) ? (6) : ((((bpp > 6) && (bpp < 8))) ? (-2 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (0 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
> +		*p++ = (bpp <=  6) ? (-4) : ((((bpp >=  8) && (bpp <= 12))) ? (-2) : ((bpp >= 15) ? (4) : ((((bpp > 6) && (bpp < 8))) ? (-4 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (-2 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
> +		*p++ = (bpp <=  6) ? (-6) : ((((bpp >=  8) && (bpp <= 12))) ? (-4) : ((bpp >= 15) ? (2) : ((((bpp > 6) && (bpp < 8))) ? (-6 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (-4 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
> +		*p++ = (bpp <= 12) ? (-6) : ((bpp >= 15) ? (0) : (-6 + dsc_roundf((bpp - 12) * (6 / 3.0))));
> +		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-2) : (-8 + dsc_roundf((bpp - 12) * (6 / 3.0))));
> +		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-4) : (-8 + dsc_roundf((bpp - 12) * (4 / 3.0))));
> +		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-6) : (-8 + dsc_roundf((bpp - 12) * (2 / 3.0))));
> +		*p++ = (bpp <= 12) ? (-10) : ((bpp >= 15) ? (-8) : (-10 + dsc_roundf((bpp - 12) * (2 / 3.0))));
> +		*p++ = -10;
> +		*p++ = (bpp <=  6) ? (-12) : ((bpp >=  8) ? (-10) : (-12 + dsc_roundf((bpp -  6) * (2 / 2.0))));
> +		*p++ = -12;
> +		*p++ = -12;
> +		*p++ = -12;
> +	} else if (mode == CM_422) {
> +		*p++ = (bpp <=  8) ? (2) : ((bpp >= 10) ? (10) : (2 + dsc_roundf((bpp -  8) * (8 / 2.0))));
> +		*p++ = (bpp <=  8) ? (0) : ((bpp >= 10) ? (8) : (0 + dsc_roundf((bpp -  8) * (8 / 2.0))));
> +		*p++ = (bpp <=  8) ? (0) : ((bpp >= 10) ? (6) : (0 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> +		*p++ = (bpp <=  8) ? (-2) : ((bpp >= 10) ? (4) : (-2 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> +		*p++ = (bpp <=  8) ? (-4) : ((bpp >= 10) ? (2) : (-4 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> +		*p++ = (bpp <=  8) ? (-6) : ((bpp >= 10) ? (0) : (-6 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> +		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-2) : (-8 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> +		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-4) : (-8 + dsc_roundf((bpp -  8) * (4 / 2.0))));
> +		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-6) : (-8 + dsc_roundf((bpp -  8) * (2 / 2.0))));
> +		*p++ = (bpp <=  8) ? (-10) : ((bpp >= 10) ? (-8) : (-10 + dsc_roundf((bpp -  8) * (2 / 2.0))));
> +		*p++ = -10;
> +		*p++ = (bpp <=  6) ? (-12) : ((bpp >= 7) ? (-10) : (-12 + dsc_roundf((bpp -  6) * (2.0 / 1))));
> +		*p++ = -12;
> +		*p++ = -12;
> +		*p++ = -12;
> +	} else {
> +		*p++ = (bpp <=  6) ? (2) : ((bpp >=  8) ? (10) : (2 + dsc_roundf((bpp -  6) * (8 / 2.0))));
> +		*p++ = (bpp <=  6) ? (0) : ((bpp >=  8) ? (8) : (0 + dsc_roundf((bpp -  6) * (8 / 2.0))));
> +		*p++ = (bpp <=  6) ? (0) : ((bpp >=  8) ? (6) : (0 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> +		*p++ = (bpp <=  6) ? (-2) : ((bpp >=  8) ? (4) : (-2 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> +		*p++ = (bpp <=  6) ? (-4) : ((bpp >=  8) ? (2) : (-4 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> +		*p++ = (bpp <=  6) ? (-6) : ((bpp >=  8) ? (0) : (-6 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> +		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-2) : (-8 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> +		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-4) : (-8 + dsc_roundf((bpp -  6) * (4 / 2.0))));
> +		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-6) : (-8 + dsc_roundf((bpp -  6) * (2 / 2.0))));
> +		*p++ = (bpp <=  6) ? (-10) : ((bpp >=  8) ? (-8) : (-10 + dsc_roundf((bpp -  6) * (2 / 2.0))));
> +		*p++ = -10;
> +		*p++ = (bpp <=  4) ? (-12) : ((bpp >=  5) ? (-10) : (-12 + dsc_roundf((bpp -  4) * (2 / 1.0))));
> +		*p++ = -12;
> +		*p++ = -12;
> +		*p++ = -12;
> +	}
> +}
> +
> +void _do_calc_rc_params(struct rc_params *rc, enum colour_mode cm,
> +			       enum bits_per_comp bpc, u16 drm_bpp,
> +			       bool is_navite_422_or_420,
> +			       int slice_width, int slice_height,
> +			       int minor_version)
> +{
> +	float bpp;
> +	float bpp_group;
> +	float initial_xmit_delay_factor;
> +	int padding_pixels;
> +	int i;
> +
> +	dc_assert_fp_enabled();
> +
> +	bpp = ((float)drm_bpp / 16.0);
> +	/* in native_422 or native_420 modes, the bits_per_pixel is double the
> +	 * target bpp (the latter is what calc_rc_params expects)
> +	 */
> +	if (is_navite_422_or_420)
> +		bpp /= 2.0;
> +
> +	rc->rc_quant_incr_limit0 = ((bpc == BPC_8) ? 11 : (bpc == BPC_10 ? 15 : 19)) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> +	rc->rc_quant_incr_limit1 = ((bpc == BPC_8) ? 11 : (bpc == BPC_10 ? 15 : 19)) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> +
> +	bpp_group = MODE_SELECT(bpp, bpp * 2.0, bpp * 2.0);
> +
> +	switch (cm) {
> +	case CM_420:
> +		rc->initial_fullness_offset = (bpp >=  6) ? (2048) : ((bpp <=  4) ? (6144) : ((((bpp >  4) && (bpp <=  5))) ? (6144 - dsc_roundf((bpp - 4) * (512))) : (5632 - dsc_roundf((bpp -  5) * (3584)))));
> +		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)((3 * bpc * 3) - (3 * bpp_group)));
> +		rc->second_line_bpg_offset  = median3(0, 12, (int)((3 * bpc * 3) - (3 * bpp_group)));
> +		break;
> +	case CM_422:
> +		rc->initial_fullness_offset = (bpp >=  8) ? (2048) : ((bpp <=  7) ? (5632) : (5632 - dsc_roundf((bpp - 7) * (3584))));
> +		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)((3 * bpc * 4) - (3 * bpp_group)));
> +		rc->second_line_bpg_offset  = 0;
> +		break;
> +	case CM_444:
> +	case CM_RGB:
> +		rc->initial_fullness_offset = (bpp >= 12) ? (2048) : ((bpp <=  8) ? (6144) : ((((bpp >  8) && (bpp <= 10))) ? (6144 - dsc_roundf((bpp - 8) * (512 / 2))) : (5632 - dsc_roundf((bpp - 10) * (3584 / 2)))));
> +		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)(((3 * bpc + (cm == CM_444 ? 0 : 2)) * 3) - (3 * bpp_group)));
> +		rc->second_line_bpg_offset  = 0;
> +		break;
> +	}
> +
> +	initial_xmit_delay_factor = (cm == CM_444 || cm == CM_RGB) ? 1.0 : 2.0;
> +	rc->initial_xmit_delay = dsc_roundf(8192.0/2.0/bpp/initial_xmit_delay_factor);
> +
> +	if (cm == CM_422 || cm == CM_420)
> +		slice_width /= 2;
> +
> +	padding_pixels = ((slice_width % 3) != 0) ? (3 - (slice_width % 3)) * (rc->initial_xmit_delay / slice_width) : 0;
> +	if (3 * bpp_group >= (((rc->initial_xmit_delay + 2) / 3) * (3 + (cm == CM_422)))) {
> +		if ((rc->initial_xmit_delay + padding_pixels) % 3 == 1)
> +			rc->initial_xmit_delay++;
> +	}
> +
> +	rc->flatness_min_qp     = ((bpc == BPC_8) ?  (3) : ((bpc == BPC_10) ? (7)  : (11))) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> +	rc->flatness_max_qp     = ((bpc == BPC_8) ? (12) : ((bpc == BPC_10) ? (16) : (20))) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> +	rc->flatness_det_thresh = 2 << (bpc - 8);
> +
> +	get_qp_set(rc->qp_min, cm, bpc, DAL_MM_MIN, bpp);
> +	get_qp_set(rc->qp_max, cm, bpc, DAL_MM_MAX, bpp);
> +	if (cm == CM_444 && minor_version == 1) {
> +		for (i = 0; i < QP_SET_SIZE; ++i) {
> +			rc->qp_min[i] = rc->qp_min[i] > 0 ? rc->qp_min[i] - 1 : 0;
> +			rc->qp_max[i] = rc->qp_max[i] > 0 ? rc->qp_max[i] - 1 : 0;
> +		}
> +	}
> +	get_ofs_set(rc->ofs, cm, bpp);
> +
> +	/* fixed parameters */
> +	rc->rc_model_size    = 8192;
> +	rc->rc_edge_factor   = 6;
> +	rc->rc_tgt_offset_hi = 3;
> +	rc->rc_tgt_offset_lo = 3;
> +
> +	rc->rc_buf_thresh[0] = 896;
> +	rc->rc_buf_thresh[1] = 1792;
> +	rc->rc_buf_thresh[2] = 2688;
> +	rc->rc_buf_thresh[3] = 3584;
> +	rc->rc_buf_thresh[4] = 4480;
> +	rc->rc_buf_thresh[5] = 5376;
> +	rc->rc_buf_thresh[6] = 6272;
> +	rc->rc_buf_thresh[7] = 6720;
> +	rc->rc_buf_thresh[8] = 7168;
> +	rc->rc_buf_thresh[9] = 7616;
> +	rc->rc_buf_thresh[10] = 7744;
> +	rc->rc_buf_thresh[11] = 7872;
> +	rc->rc_buf_thresh[12] = 8000;
> +	rc->rc_buf_thresh[13] = 8064;
> +}
> +
> +u32 _do_bytes_per_pixel_calc(int slice_width, u16 drm_bpp,
> +				    bool is_navite_422_or_420)
> +{
> +	float bpp;
> +	u32 bytes_per_pixel;
> +	double d_bytes_per_pixel;
> +
> +	dc_assert_fp_enabled();
> +
> +	bpp = ((float)drm_bpp / 16.0);
> +	d_bytes_per_pixel = dsc_ceil(bpp * slice_width / 8.0) / slice_width;
> +	// TODO: Make sure the formula for calculating this is precise (ceiling
> +	// vs. floor, and at what point they should be applied)
> +	if (is_navite_422_or_420)
> +		d_bytes_per_pixel /= 2;
> +
> +	bytes_per_pixel = (u32)dsc_ceil(d_bytes_per_pixel * 0x10000000);
> +
> +	return bytes_per_pixel;
> +}
> \ No newline at end of file
> diff --git a/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.h b/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.h
> new file mode 100644
> index 000000000000..d3900ff7fa89
> --- /dev/null
> +++ b/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.h
> @@ -0,0 +1,89 @@
> +/*
> + * Copyright 2021 Advanced Micro Devices, Inc.
> + *
> + * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: AMD
> + *
> + */
> +
> +#ifndef __RC_CALC_FPU_H__
> +#define __RC_CALC_FPU_H__
> +
> +#include "os_types.h"
> +
> +#define QP_SET_SIZE 15
> +
> +typedef int qp_set[QP_SET_SIZE];
> +
> +struct rc_params {
> +	int      rc_quant_incr_limit0;
> +	int      rc_quant_incr_limit1;
> +	int      initial_fullness_offset;
> +	int      initial_xmit_delay;
> +	int      first_line_bpg_offset;
> +	int      second_line_bpg_offset;
> +	int      flatness_min_qp;
> +	int      flatness_max_qp;
> +	int      flatness_det_thresh;
> +	qp_set   qp_min;
> +	qp_set   qp_max;
> +	qp_set   ofs;
> +	int      rc_model_size;
> +	int      rc_edge_factor;
> +	int      rc_tgt_offset_hi;
> +	int      rc_tgt_offset_lo;
> +	int      rc_buf_thresh[QP_SET_SIZE - 1];
> +};
> +
> +enum colour_mode {
> +	CM_RGB,   /* 444 RGB */
> +	CM_444,   /* 444 YUV or simple 422 */
> +	CM_422,   /* native 422 */
> +	CM_420    /* native 420 */
> +};
> +
> +enum bits_per_comp {
> +	BPC_8  =  8,
> +	BPC_10 = 10,
> +	BPC_12 = 12
> +};
> +
> +enum max_min {
> +	DAL_MM_MIN = 0,
> +	DAL_MM_MAX = 1
> +};
> +
> +struct qp_entry {
> +	float         bpp;
> +	const qp_set  qps;
> +};
> +
> +typedef struct qp_entry qp_table[];
> +
> +u32 _do_bytes_per_pixel_calc(int slice_width, u16 drm_bpp,
> +				    bool is_navite_422_or_420);
> +
> +void _do_calc_rc_params(struct rc_params *rc, enum colour_mode cm,
> +			       enum bits_per_comp bpc, u16 drm_bpp,
> +			       bool is_navite_422_or_420,
> +			       int slice_width, int slice_height,
> +			       int minor_version);
> +
> +#endif
> \ No newline at end of file
> diff --git a/drivers/gpu/drm/amd/display/dc/dsc/Makefile b/drivers/gpu/drm/amd/display/dc/dsc/Makefile
> index 8d31eb75c6a6..8d01b8a9fc6a 100644
> --- a/drivers/gpu/drm/amd/display/dc/dsc/Makefile
> +++ b/drivers/gpu/drm/amd/display/dc/dsc/Makefile
> @@ -2,14 +2,6 @@
>  #
>  # Makefile for the 'dsc' sub-component of DAL.
>  
> -ifdef CONFIG_X86
> -dsc_ccflags := -mhard-float -msse
> -endif
> -
> -ifdef CONFIG_PPC64
> -dsc_ccflags := -mhard-float -maltivec
> -endif
> -
>  ifdef CONFIG_CC_IS_GCC
>  ifeq ($(call cc-ifversion, -lt, 0701, y), y)
>  IS_OLD_GCC = 1
> diff --git a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.c b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.c
> index 7b294f637881..87acec33b8d8 100644
> --- a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.c
> +++ b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.c
> @@ -25,264 +25,7 @@
>   */
>  #include <drm/drm_dsc.h>
>  
> -#include "os_types.h"
>  #include "rc_calc.h"
> -#include "qp_tables.h"
> -
> -#define table_hash(mode, bpc, max_min) ((mode << 16) | (bpc << 8) | max_min)
> -
> -#define MODE_SELECT(val444, val422, val420) \
> -	(cm == CM_444 || cm == CM_RGB) ? (val444) : (cm == CM_422 ? (val422) : (val420))
> -
> -
> -#define TABLE_CASE(mode, bpc, max)   case (table_hash(mode, BPC_##bpc, max)): \
> -	table = qp_table_##mode##_##bpc##bpc_##max; \
> -	table_size = sizeof(qp_table_##mode##_##bpc##bpc_##max)/sizeof(*qp_table_##mode##_##bpc##bpc_##max); \
> -	break
> -
> -
> -static void get_qp_set(qp_set qps, enum colour_mode cm, enum bits_per_comp bpc,
> -		       enum max_min max_min, float bpp)
> -{
> -	int mode = MODE_SELECT(444, 422, 420);
> -	int sel = table_hash(mode, bpc, max_min);
> -	int table_size = 0;
> -	int index;
> -	const struct qp_entry *table = 0L;
> -
> -	// alias enum
> -	enum { min = DAL_MM_MIN, max = DAL_MM_MAX };
> -	switch (sel) {
> -		TABLE_CASE(444,  8, max);
> -		TABLE_CASE(444,  8, min);
> -		TABLE_CASE(444, 10, max);
> -		TABLE_CASE(444, 10, min);
> -		TABLE_CASE(444, 12, max);
> -		TABLE_CASE(444, 12, min);
> -		TABLE_CASE(422,  8, max);
> -		TABLE_CASE(422,  8, min);
> -		TABLE_CASE(422, 10, max);
> -		TABLE_CASE(422, 10, min);
> -		TABLE_CASE(422, 12, max);
> -		TABLE_CASE(422, 12, min);
> -		TABLE_CASE(420,  8, max);
> -		TABLE_CASE(420,  8, min);
> -		TABLE_CASE(420, 10, max);
> -		TABLE_CASE(420, 10, min);
> -		TABLE_CASE(420, 12, max);
> -		TABLE_CASE(420, 12, min);
> -	}
> -
> -	if (table == 0)
> -		return;
> -
> -	index = (bpp - table[0].bpp) * 2;
> -
> -	/* requested size is bigger than the table */
> -	if (index >= table_size) {
> -		dm_error("ERROR: Requested rc_calc to find a bpp entry that exceeds the table size\n");
> -		return;
> -	}
> -
> -	memcpy(qps, table[index].qps, sizeof(qp_set));
> -}
> -
> -static double dsc_roundf(double num)
> -{
> -	if (num < 0.0)
> -		num = num - 0.5;
> -	else
> -		num = num + 0.5;
> -
> -	return (int)(num);
> -}
> -
> -static double dsc_ceil(double num)
> -{
> -	double retval = (int)num;
> -
> -	if (retval != num && num > 0)
> -		retval = num + 1;
> -
> -	return (int)retval;
> -}
> -
> -static void get_ofs_set(qp_set ofs, enum colour_mode mode, float bpp)
> -{
> -	int   *p = ofs;
> -
> -	if (mode == CM_444 || mode == CM_RGB) {
> -		*p++ = (bpp <=  6) ? (0) : ((((bpp >=  8) && (bpp <= 12))) ? (2) : ((bpp >= 15) ? (10) : ((((bpp > 6) && (bpp < 8))) ? (0 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (2 + dsc_roundf((bpp - 12) * (8 / 3.0))))));
> -		*p++ = (bpp <=  6) ? (-2) : ((((bpp >=  8) && (bpp <= 12))) ? (0) : ((bpp >= 15) ? (8) : ((((bpp > 6) && (bpp < 8))) ? (-2 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (0 + dsc_roundf((bpp - 12) * (8 / 3.0))))));
> -		*p++ = (bpp <=  6) ? (-2) : ((((bpp >=  8) && (bpp <= 12))) ? (0) : ((bpp >= 15) ? (6) : ((((bpp > 6) && (bpp < 8))) ? (-2 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (0 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
> -		*p++ = (bpp <=  6) ? (-4) : ((((bpp >=  8) && (bpp <= 12))) ? (-2) : ((bpp >= 15) ? (4) : ((((bpp > 6) && (bpp < 8))) ? (-4 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (-2 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
> -		*p++ = (bpp <=  6) ? (-6) : ((((bpp >=  8) && (bpp <= 12))) ? (-4) : ((bpp >= 15) ? (2) : ((((bpp > 6) && (bpp < 8))) ? (-6 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (-4 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
> -		*p++ = (bpp <= 12) ? (-6) : ((bpp >= 15) ? (0) : (-6 + dsc_roundf((bpp - 12) * (6 / 3.0))));
> -		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-2) : (-8 + dsc_roundf((bpp - 12) * (6 / 3.0))));
> -		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-4) : (-8 + dsc_roundf((bpp - 12) * (4 / 3.0))));
> -		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-6) : (-8 + dsc_roundf((bpp - 12) * (2 / 3.0))));
> -		*p++ = (bpp <= 12) ? (-10) : ((bpp >= 15) ? (-8) : (-10 + dsc_roundf((bpp - 12) * (2 / 3.0))));
> -		*p++ = -10;
> -		*p++ = (bpp <=  6) ? (-12) : ((bpp >=  8) ? (-10) : (-12 + dsc_roundf((bpp -  6) * (2 / 2.0))));
> -		*p++ = -12;
> -		*p++ = -12;
> -		*p++ = -12;
> -	} else if (mode == CM_422) {
> -		*p++ = (bpp <=  8) ? (2) : ((bpp >= 10) ? (10) : (2 + dsc_roundf((bpp -  8) * (8 / 2.0))));
> -		*p++ = (bpp <=  8) ? (0) : ((bpp >= 10) ? (8) : (0 + dsc_roundf((bpp -  8) * (8 / 2.0))));
> -		*p++ = (bpp <=  8) ? (0) : ((bpp >= 10) ? (6) : (0 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> -		*p++ = (bpp <=  8) ? (-2) : ((bpp >= 10) ? (4) : (-2 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> -		*p++ = (bpp <=  8) ? (-4) : ((bpp >= 10) ? (2) : (-4 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> -		*p++ = (bpp <=  8) ? (-6) : ((bpp >= 10) ? (0) : (-6 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> -		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-2) : (-8 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> -		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-4) : (-8 + dsc_roundf((bpp -  8) * (4 / 2.0))));
> -		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-6) : (-8 + dsc_roundf((bpp -  8) * (2 / 2.0))));
> -		*p++ = (bpp <=  8) ? (-10) : ((bpp >= 10) ? (-8) : (-10 + dsc_roundf((bpp -  8) * (2 / 2.0))));
> -		*p++ = -10;
> -		*p++ = (bpp <=  6) ? (-12) : ((bpp >= 7) ? (-10) : (-12 + dsc_roundf((bpp -  6) * (2.0 / 1))));
> -		*p++ = -12;
> -		*p++ = -12;
> -		*p++ = -12;
> -	} else {
> -		*p++ = (bpp <=  6) ? (2) : ((bpp >=  8) ? (10) : (2 + dsc_roundf((bpp -  6) * (8 / 2.0))));
> -		*p++ = (bpp <=  6) ? (0) : ((bpp >=  8) ? (8) : (0 + dsc_roundf((bpp -  6) * (8 / 2.0))));
> -		*p++ = (bpp <=  6) ? (0) : ((bpp >=  8) ? (6) : (0 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> -		*p++ = (bpp <=  6) ? (-2) : ((bpp >=  8) ? (4) : (-2 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> -		*p++ = (bpp <=  6) ? (-4) : ((bpp >=  8) ? (2) : (-4 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> -		*p++ = (bpp <=  6) ? (-6) : ((bpp >=  8) ? (0) : (-6 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> -		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-2) : (-8 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> -		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-4) : (-8 + dsc_roundf((bpp -  6) * (4 / 2.0))));
> -		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-6) : (-8 + dsc_roundf((bpp -  6) * (2 / 2.0))));
> -		*p++ = (bpp <=  6) ? (-10) : ((bpp >=  8) ? (-8) : (-10 + dsc_roundf((bpp -  6) * (2 / 2.0))));
> -		*p++ = -10;
> -		*p++ = (bpp <=  4) ? (-12) : ((bpp >=  5) ? (-10) : (-12 + dsc_roundf((bpp -  4) * (2 / 1.0))));
> -		*p++ = -12;
> -		*p++ = -12;
> -		*p++ = -12;
> -	}
> -}
> -
> -static int median3(int a, int b, int c)
> -{
> -	if (a > b)
> -		swap(a, b);
> -	if (b > c)
> -		swap(b, c);
> -	if (a > b)
> -		swap(b, c);
> -
> -	return b;
> -}
> -
> -static void _do_calc_rc_params(struct rc_params *rc, enum colour_mode cm,
> -			       enum bits_per_comp bpc, u16 drm_bpp,
> -			       bool is_navite_422_or_420,
> -			       int slice_width, int slice_height,
> -			       int minor_version)
> -{
> -	float bpp;
> -	float bpp_group;
> -	float initial_xmit_delay_factor;
> -	int padding_pixels;
> -	int i;
> -
> -	bpp = ((float)drm_bpp / 16.0);
> -	/* in native_422 or native_420 modes, the bits_per_pixel is double the
> -	 * target bpp (the latter is what calc_rc_params expects)
> -	 */
> -	if (is_navite_422_or_420)
> -		bpp /= 2.0;
> -
> -	rc->rc_quant_incr_limit0 = ((bpc == BPC_8) ? 11 : (bpc == BPC_10 ? 15 : 19)) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> -	rc->rc_quant_incr_limit1 = ((bpc == BPC_8) ? 11 : (bpc == BPC_10 ? 15 : 19)) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> -
> -	bpp_group = MODE_SELECT(bpp, bpp * 2.0, bpp * 2.0);
> -
> -	switch (cm) {
> -	case CM_420:
> -		rc->initial_fullness_offset = (bpp >=  6) ? (2048) : ((bpp <=  4) ? (6144) : ((((bpp >  4) && (bpp <=  5))) ? (6144 - dsc_roundf((bpp - 4) * (512))) : (5632 - dsc_roundf((bpp -  5) * (3584)))));
> -		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)((3 * bpc * 3) - (3 * bpp_group)));
> -		rc->second_line_bpg_offset  = median3(0, 12, (int)((3 * bpc * 3) - (3 * bpp_group)));
> -		break;
> -	case CM_422:
> -		rc->initial_fullness_offset = (bpp >=  8) ? (2048) : ((bpp <=  7) ? (5632) : (5632 - dsc_roundf((bpp - 7) * (3584))));
> -		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)((3 * bpc * 4) - (3 * bpp_group)));
> -		rc->second_line_bpg_offset  = 0;
> -		break;
> -	case CM_444:
> -	case CM_RGB:
> -		rc->initial_fullness_offset = (bpp >= 12) ? (2048) : ((bpp <=  8) ? (6144) : ((((bpp >  8) && (bpp <= 10))) ? (6144 - dsc_roundf((bpp - 8) * (512 / 2))) : (5632 - dsc_roundf((bpp - 10) * (3584 / 2)))));
> -		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)(((3 * bpc + (cm == CM_444 ? 0 : 2)) * 3) - (3 * bpp_group)));
> -		rc->second_line_bpg_offset  = 0;
> -		break;
> -	}
> -
> -	initial_xmit_delay_factor = (cm == CM_444 || cm == CM_RGB) ? 1.0 : 2.0;
> -	rc->initial_xmit_delay = dsc_roundf(8192.0/2.0/bpp/initial_xmit_delay_factor);
> -
> -	if (cm == CM_422 || cm == CM_420)
> -		slice_width /= 2;
> -
> -	padding_pixels = ((slice_width % 3) != 0) ? (3 - (slice_width % 3)) * (rc->initial_xmit_delay / slice_width) : 0;
> -	if (3 * bpp_group >= (((rc->initial_xmit_delay + 2) / 3) * (3 + (cm == CM_422)))) {
> -		if ((rc->initial_xmit_delay + padding_pixels) % 3 == 1)
> -			rc->initial_xmit_delay++;
> -	}
> -
> -	rc->flatness_min_qp     = ((bpc == BPC_8) ?  (3) : ((bpc == BPC_10) ? (7)  : (11))) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> -	rc->flatness_max_qp     = ((bpc == BPC_8) ? (12) : ((bpc == BPC_10) ? (16) : (20))) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> -	rc->flatness_det_thresh = 2 << (bpc - 8);
> -
> -	get_qp_set(rc->qp_min, cm, bpc, DAL_MM_MIN, bpp);
> -	get_qp_set(rc->qp_max, cm, bpc, DAL_MM_MAX, bpp);
> -	if (cm == CM_444 && minor_version == 1) {
> -		for (i = 0; i < QP_SET_SIZE; ++i) {
> -			rc->qp_min[i] = rc->qp_min[i] > 0 ? rc->qp_min[i] - 1 : 0;
> -			rc->qp_max[i] = rc->qp_max[i] > 0 ? rc->qp_max[i] - 1 : 0;
> -		}
> -	}
> -	get_ofs_set(rc->ofs, cm, bpp);
> -
> -	/* fixed parameters */
> -	rc->rc_model_size    = 8192;
> -	rc->rc_edge_factor   = 6;
> -	rc->rc_tgt_offset_hi = 3;
> -	rc->rc_tgt_offset_lo = 3;
> -
> -	rc->rc_buf_thresh[0] = 896;
> -	rc->rc_buf_thresh[1] = 1792;
> -	rc->rc_buf_thresh[2] = 2688;
> -	rc->rc_buf_thresh[3] = 3584;
> -	rc->rc_buf_thresh[4] = 4480;
> -	rc->rc_buf_thresh[5] = 5376;
> -	rc->rc_buf_thresh[6] = 6272;
> -	rc->rc_buf_thresh[7] = 6720;
> -	rc->rc_buf_thresh[8] = 7168;
> -	rc->rc_buf_thresh[9] = 7616;
> -	rc->rc_buf_thresh[10] = 7744;
> -	rc->rc_buf_thresh[11] = 7872;
> -	rc->rc_buf_thresh[12] = 8000;
> -	rc->rc_buf_thresh[13] = 8064;
> -}
> -
> -static u32 _do_bytes_per_pixel_calc(int slice_width, u16 drm_bpp,
> -				    bool is_navite_422_or_420)
> -{
> -	float bpp;
> -	u32 bytes_per_pixel;
> -	double d_bytes_per_pixel;
> -
> -	bpp = ((float)drm_bpp / 16.0);
> -	d_bytes_per_pixel = dsc_ceil(bpp * slice_width / 8.0) / slice_width;
> -	// TODO: Make sure the formula for calculating this is precise (ceiling
> -	// vs. floor, and at what point they should be applied)
> -	if (is_navite_422_or_420)
> -		d_bytes_per_pixel /= 2;
> -
> -	bytes_per_pixel = (u32)dsc_ceil(d_bytes_per_pixel * 0x10000000);
> -
> -	return bytes_per_pixel;
> -}
>  
>  /**
>   * calc_rc_params - reads the user's cmdline mode
> diff --git a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.h b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.h
> index 262f06afcbf9..c2340e001b57 100644
> --- a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.h
> +++ b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.h
> @@ -27,55 +27,7 @@
>  #ifndef __RC_CALC_H__
>  #define __RC_CALC_H__
>  
> -
> -#define QP_SET_SIZE 15
> -
> -typedef int qp_set[QP_SET_SIZE];
> -
> -struct rc_params {
> -	int      rc_quant_incr_limit0;
> -	int      rc_quant_incr_limit1;
> -	int      initial_fullness_offset;
> -	int      initial_xmit_delay;
> -	int      first_line_bpg_offset;
> -	int      second_line_bpg_offset;
> -	int      flatness_min_qp;
> -	int      flatness_max_qp;
> -	int      flatness_det_thresh;
> -	qp_set   qp_min;
> -	qp_set   qp_max;
> -	qp_set   ofs;
> -	int      rc_model_size;
> -	int      rc_edge_factor;
> -	int      rc_tgt_offset_hi;
> -	int      rc_tgt_offset_lo;
> -	int      rc_buf_thresh[QP_SET_SIZE - 1];
> -};
> -
> -enum colour_mode {
> -	CM_RGB,   /* 444 RGB */
> -	CM_444,   /* 444 YUV or simple 422 */
> -	CM_422,   /* native 422 */
> -	CM_420    /* native 420 */
> -};
> -
> -enum bits_per_comp {
> -	BPC_8  =  8,
> -	BPC_10 = 10,
> -	BPC_12 = 12
> -};
> -
> -enum max_min {
> -	DAL_MM_MIN = 0,
> -	DAL_MM_MAX = 1
> -};
> -
> -struct qp_entry {
> -	float         bpp;
> -	const qp_set  qps;
> -};
> -
> -typedef struct qp_entry qp_table[];
> +#include "dml/dsc/rc_calc_fpu.h"
>  
>  void calc_rc_params(struct rc_params *rc, const struct drm_dsc_config *pps);
>  u32 calc_dsc_bytes_per_pixel(const struct drm_dsc_config *pps);
> diff --git a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c
> index ef830aded5b1..1e19dd674e5a 100644
> --- a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c
> +++ b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c
> @@ -22,7 +22,6 @@
>   * Authors: AMD
>   *
>   */
> -#include "os_types.h"
>  #include <drm/drm_dsc.h>
>  #include "dscc_types.h"
>  #include "rc_calc.h"
> -- 
> 2.25.1
> 

-- 
Rodrigo Siqueira
https://siqueira.tech

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH] drm/amd/display: move FPU associated DSC code to DML folder
  2021-09-07 14:32 [PATCH] drm/amd/display: move FPU associated DSC code to DML folder Qingqing Zhuo
  2021-09-14 15:52 ` Anson Jacob
  2021-09-17 15:07 ` [PATCH] " Rodrigo Siqueira
@ 2021-09-20  7:36 ` Christian König
  2 siblings, 0 replies; 4+ messages in thread
From: Christian König @ 2021-09-20  7:36 UTC (permalink / raw)
  To: Qingqing Zhuo, amd-gfx
  Cc: Anson Jacob, Hersen Wu, Harry Wentland, Rodrigo Siqueira

Feel free to add an Acked-by: Christian König <christian.koenig@amd.com>

Am 07.09.21 um 16:32 schrieb Qingqing Zhuo:
> As part of the FPU isolation work documented in
> https://patchwork.freedesktop.org/series/93042/, isolate
> code that uses FPU in DSC to DML, where all FPU code
> should locate.
>
> This change does not refactor any fuctions but move code
> around.
>
> Cc: Anson Jacob <Anson.Jacob@amd.com>
> Cc: Christian König <christian.koenig@amd.com>
> Cc: Hersen Wu <hersenxs.wu@amd.com>
> Cc: Harry Wentland <harry.wentland@amd.com>
> Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
> Signed-off-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
> ---
>   drivers/gpu/drm/amd/display/dc/dml/Makefile   |   3 +
>   .../amd/display/dc/{ => dml}/dsc/qp_tables.h  |   0
>   .../drm/amd/display/dc/dml/dsc/rc_calc_fpu.c  | 287 ++++++++++++++++++
>   .../drm/amd/display/dc/dml/dsc/rc_calc_fpu.h  |  89 ++++++
>   drivers/gpu/drm/amd/display/dc/dsc/Makefile   |   8 -
>   drivers/gpu/drm/amd/display/dc/dsc/rc_calc.c  | 257 ----------------
>   drivers/gpu/drm/amd/display/dc/dsc/rc_calc.h  |  50 +--
>   .../gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c  |   1 -
>   8 files changed, 380 insertions(+), 315 deletions(-)
>   rename drivers/gpu/drm/amd/display/dc/{ => dml}/dsc/qp_tables.h (100%)
>   create mode 100644 drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.c
>   create mode 100644 drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.h
>
> diff --git a/drivers/gpu/drm/amd/display/dc/dml/Makefile b/drivers/gpu/drm/amd/display/dc/dml/Makefile
> index 56055df2e8d2..9009b92490f3 100644
> --- a/drivers/gpu/drm/amd/display/dc/dml/Makefile
> +++ b/drivers/gpu/drm/amd/display/dc/dml/Makefile
> @@ -70,6 +70,7 @@ CFLAGS_$(AMDDALPATH)/dc/dml/dcn30/display_mode_vba_30.o := $(dml_ccflags) $(fram
>   CFLAGS_$(AMDDALPATH)/dc/dml/dcn30/display_rq_dlg_calc_30.o := $(dml_ccflags)
>   CFLAGS_$(AMDDALPATH)/dc/dml/dcn31/display_mode_vba_31.o := $(dml_ccflags) $(frame_warn_flag)
>   CFLAGS_$(AMDDALPATH)/dc/dml/dcn31/display_rq_dlg_calc_31.o := $(dml_ccflags)
> +CFLAGS_$(AMDDALPATH)/dc/dml/dsc/rc_calc_fpu.o := $(dml_ccflags)
>   CFLAGS_$(AMDDALPATH)/dc/dml/display_mode_lib.o := $(dml_ccflags)
>   CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/display_mode_vba.o := $(dml_rcflags)
>   CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn2x/dcn2x.o := $(dml_rcflags)
> @@ -84,6 +85,7 @@ CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn30/display_rq_dlg_calc_30.o := $(dml_rcfla
>   CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn31/display_mode_vba_31.o := $(dml_rcflags)
>   CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn31/display_rq_dlg_calc_31.o := $(dml_rcflags)
>   CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/display_mode_lib.o := $(dml_rcflags)
> +CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dsc/rc_calc_fpu.o  := $(dml_rcflags)
>   endif
>   CFLAGS_$(AMDDALPATH)/dc/dml/dml1_display_rq_dlg_calc.o := $(dml_ccflags)
>   CFLAGS_$(AMDDALPATH)/dc/dml/display_rq_dlg_helpers.o := $(dml_ccflags)
> @@ -99,6 +101,7 @@ DML += dcn20/display_rq_dlg_calc_20v2.o dcn20/display_mode_vba_20v2.o
>   DML += dcn21/display_rq_dlg_calc_21.o dcn21/display_mode_vba_21.o
>   DML += dcn30/display_mode_vba_30.o dcn30/display_rq_dlg_calc_30.o
>   DML += dcn31/display_mode_vba_31.o dcn31/display_rq_dlg_calc_31.o
> +DML += dsc/rc_calc_fpu.o
>   endif
>   
>   AMD_DAL_DML = $(addprefix $(AMDDALPATH)/dc/dml/,$(DML))
> diff --git a/drivers/gpu/drm/amd/display/dc/dsc/qp_tables.h b/drivers/gpu/drm/amd/display/dc/dml/dsc/qp_tables.h
> similarity index 100%
> rename from drivers/gpu/drm/amd/display/dc/dsc/qp_tables.h
> rename to drivers/gpu/drm/amd/display/dc/dml/dsc/qp_tables.h
> diff --git a/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.c
> new file mode 100644
> index 000000000000..0436fc64948f
> --- /dev/null
> +++ b/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.c
> @@ -0,0 +1,287 @@
> +/*
> + * Copyright 2021 Advanced Micro Devices, Inc.
> + *
> + * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: AMD
> + *
> + */
> +
> +#include "rc_calc_fpu.h"
> +
> +#include "qp_tables.h"
> +#include "amdgpu_dm/dc_fpu.h"
> +
> +#define table_hash(mode, bpc, max_min) ((mode << 16) | (bpc << 8) | max_min)
> +
> +#define MODE_SELECT(val444, val422, val420) \
> +	(cm == CM_444 || cm == CM_RGB) ? (val444) : (cm == CM_422 ? (val422) : (val420))
> +
> +
> +#define TABLE_CASE(mode, bpc, max)   case (table_hash(mode, BPC_##bpc, max)): \
> +	table = qp_table_##mode##_##bpc##bpc_##max; \
> +	table_size = sizeof(qp_table_##mode##_##bpc##bpc_##max)/sizeof(*qp_table_##mode##_##bpc##bpc_##max); \
> +	break
> +
> +static int median3(int a, int b, int c)
> +{
> +	if (a > b)
> +		swap(a, b);
> +	if (b > c)
> +		swap(b, c);
> +	if (a > b)
> +		swap(b, c);
> +
> +	return b;
> +}
> +
> +static double dsc_roundf(double num)
> +{
> +	if (num < 0.0)
> +		num = num - 0.5;
> +	else
> +		num = num + 0.5;
> +
> +	return (int)(num);
> +}
> +
> +static double dsc_ceil(double num)
> +{
> +	double retval = (int)num;
> +
> +	if (retval != num && num > 0)
> +		retval = num + 1;
> +
> +	return (int)retval;
> +}
> +
> +static void get_qp_set(qp_set qps, enum colour_mode cm, enum bits_per_comp bpc,
> +		       enum max_min max_min, float bpp)
> +{
> +	int mode = MODE_SELECT(444, 422, 420);
> +	int sel = table_hash(mode, bpc, max_min);
> +	int table_size = 0;
> +	int index;
> +	const struct qp_entry *table = 0L;
> +
> +	// alias enum
> +	enum { min = DAL_MM_MIN, max = DAL_MM_MAX };
> +	switch (sel) {
> +		TABLE_CASE(444,  8, max);
> +		TABLE_CASE(444,  8, min);
> +		TABLE_CASE(444, 10, max);
> +		TABLE_CASE(444, 10, min);
> +		TABLE_CASE(444, 12, max);
> +		TABLE_CASE(444, 12, min);
> +		TABLE_CASE(422,  8, max);
> +		TABLE_CASE(422,  8, min);
> +		TABLE_CASE(422, 10, max);
> +		TABLE_CASE(422, 10, min);
> +		TABLE_CASE(422, 12, max);
> +		TABLE_CASE(422, 12, min);
> +		TABLE_CASE(420,  8, max);
> +		TABLE_CASE(420,  8, min);
> +		TABLE_CASE(420, 10, max);
> +		TABLE_CASE(420, 10, min);
> +		TABLE_CASE(420, 12, max);
> +		TABLE_CASE(420, 12, min);
> +	}
> +
> +	if (table == 0)
> +		return;
> +
> +	index = (bpp - table[0].bpp) * 2;
> +
> +	/* requested size is bigger than the table */
> +	if (index >= table_size) {
> +		dm_error("ERROR: Requested rc_calc to find a bpp entry that exceeds the table size\n");
> +		return;
> +	}
> +
> +	memcpy(qps, table[index].qps, sizeof(qp_set));
> +}
> +
> +static void get_ofs_set(qp_set ofs, enum colour_mode mode, float bpp)
> +{
> +	int   *p = ofs;
> +
> +	if (mode == CM_444 || mode == CM_RGB) {
> +		*p++ = (bpp <=  6) ? (0) : ((((bpp >=  8) && (bpp <= 12))) ? (2) : ((bpp >= 15) ? (10) : ((((bpp > 6) && (bpp < 8))) ? (0 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (2 + dsc_roundf((bpp - 12) * (8 / 3.0))))));
> +		*p++ = (bpp <=  6) ? (-2) : ((((bpp >=  8) && (bpp <= 12))) ? (0) : ((bpp >= 15) ? (8) : ((((bpp > 6) && (bpp < 8))) ? (-2 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (0 + dsc_roundf((bpp - 12) * (8 / 3.0))))));
> +		*p++ = (bpp <=  6) ? (-2) : ((((bpp >=  8) && (bpp <= 12))) ? (0) : ((bpp >= 15) ? (6) : ((((bpp > 6) && (bpp < 8))) ? (-2 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (0 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
> +		*p++ = (bpp <=  6) ? (-4) : ((((bpp >=  8) && (bpp <= 12))) ? (-2) : ((bpp >= 15) ? (4) : ((((bpp > 6) && (bpp < 8))) ? (-4 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (-2 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
> +		*p++ = (bpp <=  6) ? (-6) : ((((bpp >=  8) && (bpp <= 12))) ? (-4) : ((bpp >= 15) ? (2) : ((((bpp > 6) && (bpp < 8))) ? (-6 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (-4 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
> +		*p++ = (bpp <= 12) ? (-6) : ((bpp >= 15) ? (0) : (-6 + dsc_roundf((bpp - 12) * (6 / 3.0))));
> +		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-2) : (-8 + dsc_roundf((bpp - 12) * (6 / 3.0))));
> +		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-4) : (-8 + dsc_roundf((bpp - 12) * (4 / 3.0))));
> +		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-6) : (-8 + dsc_roundf((bpp - 12) * (2 / 3.0))));
> +		*p++ = (bpp <= 12) ? (-10) : ((bpp >= 15) ? (-8) : (-10 + dsc_roundf((bpp - 12) * (2 / 3.0))));
> +		*p++ = -10;
> +		*p++ = (bpp <=  6) ? (-12) : ((bpp >=  8) ? (-10) : (-12 + dsc_roundf((bpp -  6) * (2 / 2.0))));
> +		*p++ = -12;
> +		*p++ = -12;
> +		*p++ = -12;
> +	} else if (mode == CM_422) {
> +		*p++ = (bpp <=  8) ? (2) : ((bpp >= 10) ? (10) : (2 + dsc_roundf((bpp -  8) * (8 / 2.0))));
> +		*p++ = (bpp <=  8) ? (0) : ((bpp >= 10) ? (8) : (0 + dsc_roundf((bpp -  8) * (8 / 2.0))));
> +		*p++ = (bpp <=  8) ? (0) : ((bpp >= 10) ? (6) : (0 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> +		*p++ = (bpp <=  8) ? (-2) : ((bpp >= 10) ? (4) : (-2 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> +		*p++ = (bpp <=  8) ? (-4) : ((bpp >= 10) ? (2) : (-4 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> +		*p++ = (bpp <=  8) ? (-6) : ((bpp >= 10) ? (0) : (-6 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> +		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-2) : (-8 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> +		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-4) : (-8 + dsc_roundf((bpp -  8) * (4 / 2.0))));
> +		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-6) : (-8 + dsc_roundf((bpp -  8) * (2 / 2.0))));
> +		*p++ = (bpp <=  8) ? (-10) : ((bpp >= 10) ? (-8) : (-10 + dsc_roundf((bpp -  8) * (2 / 2.0))));
> +		*p++ = -10;
> +		*p++ = (bpp <=  6) ? (-12) : ((bpp >= 7) ? (-10) : (-12 + dsc_roundf((bpp -  6) * (2.0 / 1))));
> +		*p++ = -12;
> +		*p++ = -12;
> +		*p++ = -12;
> +	} else {
> +		*p++ = (bpp <=  6) ? (2) : ((bpp >=  8) ? (10) : (2 + dsc_roundf((bpp -  6) * (8 / 2.0))));
> +		*p++ = (bpp <=  6) ? (0) : ((bpp >=  8) ? (8) : (0 + dsc_roundf((bpp -  6) * (8 / 2.0))));
> +		*p++ = (bpp <=  6) ? (0) : ((bpp >=  8) ? (6) : (0 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> +		*p++ = (bpp <=  6) ? (-2) : ((bpp >=  8) ? (4) : (-2 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> +		*p++ = (bpp <=  6) ? (-4) : ((bpp >=  8) ? (2) : (-4 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> +		*p++ = (bpp <=  6) ? (-6) : ((bpp >=  8) ? (0) : (-6 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> +		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-2) : (-8 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> +		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-4) : (-8 + dsc_roundf((bpp -  6) * (4 / 2.0))));
> +		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-6) : (-8 + dsc_roundf((bpp -  6) * (2 / 2.0))));
> +		*p++ = (bpp <=  6) ? (-10) : ((bpp >=  8) ? (-8) : (-10 + dsc_roundf((bpp -  6) * (2 / 2.0))));
> +		*p++ = -10;
> +		*p++ = (bpp <=  4) ? (-12) : ((bpp >=  5) ? (-10) : (-12 + dsc_roundf((bpp -  4) * (2 / 1.0))));
> +		*p++ = -12;
> +		*p++ = -12;
> +		*p++ = -12;
> +	}
> +}
> +
> +void _do_calc_rc_params(struct rc_params *rc, enum colour_mode cm,
> +			       enum bits_per_comp bpc, u16 drm_bpp,
> +			       bool is_navite_422_or_420,
> +			       int slice_width, int slice_height,
> +			       int minor_version)
> +{
> +	float bpp;
> +	float bpp_group;
> +	float initial_xmit_delay_factor;
> +	int padding_pixels;
> +	int i;
> +
> +	dc_assert_fp_enabled();
> +
> +	bpp = ((float)drm_bpp / 16.0);
> +	/* in native_422 or native_420 modes, the bits_per_pixel is double the
> +	 * target bpp (the latter is what calc_rc_params expects)
> +	 */
> +	if (is_navite_422_or_420)
> +		bpp /= 2.0;
> +
> +	rc->rc_quant_incr_limit0 = ((bpc == BPC_8) ? 11 : (bpc == BPC_10 ? 15 : 19)) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> +	rc->rc_quant_incr_limit1 = ((bpc == BPC_8) ? 11 : (bpc == BPC_10 ? 15 : 19)) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> +
> +	bpp_group = MODE_SELECT(bpp, bpp * 2.0, bpp * 2.0);
> +
> +	switch (cm) {
> +	case CM_420:
> +		rc->initial_fullness_offset = (bpp >=  6) ? (2048) : ((bpp <=  4) ? (6144) : ((((bpp >  4) && (bpp <=  5))) ? (6144 - dsc_roundf((bpp - 4) * (512))) : (5632 - dsc_roundf((bpp -  5) * (3584)))));
> +		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)((3 * bpc * 3) - (3 * bpp_group)));
> +		rc->second_line_bpg_offset  = median3(0, 12, (int)((3 * bpc * 3) - (3 * bpp_group)));
> +		break;
> +	case CM_422:
> +		rc->initial_fullness_offset = (bpp >=  8) ? (2048) : ((bpp <=  7) ? (5632) : (5632 - dsc_roundf((bpp - 7) * (3584))));
> +		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)((3 * bpc * 4) - (3 * bpp_group)));
> +		rc->second_line_bpg_offset  = 0;
> +		break;
> +	case CM_444:
> +	case CM_RGB:
> +		rc->initial_fullness_offset = (bpp >= 12) ? (2048) : ((bpp <=  8) ? (6144) : ((((bpp >  8) && (bpp <= 10))) ? (6144 - dsc_roundf((bpp - 8) * (512 / 2))) : (5632 - dsc_roundf((bpp - 10) * (3584 / 2)))));
> +		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)(((3 * bpc + (cm == CM_444 ? 0 : 2)) * 3) - (3 * bpp_group)));
> +		rc->second_line_bpg_offset  = 0;
> +		break;
> +	}
> +
> +	initial_xmit_delay_factor = (cm == CM_444 || cm == CM_RGB) ? 1.0 : 2.0;
> +	rc->initial_xmit_delay = dsc_roundf(8192.0/2.0/bpp/initial_xmit_delay_factor);
> +
> +	if (cm == CM_422 || cm == CM_420)
> +		slice_width /= 2;
> +
> +	padding_pixels = ((slice_width % 3) != 0) ? (3 - (slice_width % 3)) * (rc->initial_xmit_delay / slice_width) : 0;
> +	if (3 * bpp_group >= (((rc->initial_xmit_delay + 2) / 3) * (3 + (cm == CM_422)))) {
> +		if ((rc->initial_xmit_delay + padding_pixels) % 3 == 1)
> +			rc->initial_xmit_delay++;
> +	}
> +
> +	rc->flatness_min_qp     = ((bpc == BPC_8) ?  (3) : ((bpc == BPC_10) ? (7)  : (11))) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> +	rc->flatness_max_qp     = ((bpc == BPC_8) ? (12) : ((bpc == BPC_10) ? (16) : (20))) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> +	rc->flatness_det_thresh = 2 << (bpc - 8);
> +
> +	get_qp_set(rc->qp_min, cm, bpc, DAL_MM_MIN, bpp);
> +	get_qp_set(rc->qp_max, cm, bpc, DAL_MM_MAX, bpp);
> +	if (cm == CM_444 && minor_version == 1) {
> +		for (i = 0; i < QP_SET_SIZE; ++i) {
> +			rc->qp_min[i] = rc->qp_min[i] > 0 ? rc->qp_min[i] - 1 : 0;
> +			rc->qp_max[i] = rc->qp_max[i] > 0 ? rc->qp_max[i] - 1 : 0;
> +		}
> +	}
> +	get_ofs_set(rc->ofs, cm, bpp);
> +
> +	/* fixed parameters */
> +	rc->rc_model_size    = 8192;
> +	rc->rc_edge_factor   = 6;
> +	rc->rc_tgt_offset_hi = 3;
> +	rc->rc_tgt_offset_lo = 3;
> +
> +	rc->rc_buf_thresh[0] = 896;
> +	rc->rc_buf_thresh[1] = 1792;
> +	rc->rc_buf_thresh[2] = 2688;
> +	rc->rc_buf_thresh[3] = 3584;
> +	rc->rc_buf_thresh[4] = 4480;
> +	rc->rc_buf_thresh[5] = 5376;
> +	rc->rc_buf_thresh[6] = 6272;
> +	rc->rc_buf_thresh[7] = 6720;
> +	rc->rc_buf_thresh[8] = 7168;
> +	rc->rc_buf_thresh[9] = 7616;
> +	rc->rc_buf_thresh[10] = 7744;
> +	rc->rc_buf_thresh[11] = 7872;
> +	rc->rc_buf_thresh[12] = 8000;
> +	rc->rc_buf_thresh[13] = 8064;
> +}
> +
> +u32 _do_bytes_per_pixel_calc(int slice_width, u16 drm_bpp,
> +				    bool is_navite_422_or_420)
> +{
> +	float bpp;
> +	u32 bytes_per_pixel;
> +	double d_bytes_per_pixel;
> +
> +	dc_assert_fp_enabled();
> +
> +	bpp = ((float)drm_bpp / 16.0);
> +	d_bytes_per_pixel = dsc_ceil(bpp * slice_width / 8.0) / slice_width;
> +	// TODO: Make sure the formula for calculating this is precise (ceiling
> +	// vs. floor, and at what point they should be applied)
> +	if (is_navite_422_or_420)
> +		d_bytes_per_pixel /= 2;
> +
> +	bytes_per_pixel = (u32)dsc_ceil(d_bytes_per_pixel * 0x10000000);
> +
> +	return bytes_per_pixel;
> +}
> \ No newline at end of file
> diff --git a/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.h b/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.h
> new file mode 100644
> index 000000000000..d3900ff7fa89
> --- /dev/null
> +++ b/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.h
> @@ -0,0 +1,89 @@
> +/*
> + * Copyright 2021 Advanced Micro Devices, Inc.
> + *
> + * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: AMD
> + *
> + */
> +
> +#ifndef __RC_CALC_FPU_H__
> +#define __RC_CALC_FPU_H__
> +
> +#include "os_types.h"
> +
> +#define QP_SET_SIZE 15
> +
> +typedef int qp_set[QP_SET_SIZE];
> +
> +struct rc_params {
> +	int      rc_quant_incr_limit0;
> +	int      rc_quant_incr_limit1;
> +	int      initial_fullness_offset;
> +	int      initial_xmit_delay;
> +	int      first_line_bpg_offset;
> +	int      second_line_bpg_offset;
> +	int      flatness_min_qp;
> +	int      flatness_max_qp;
> +	int      flatness_det_thresh;
> +	qp_set   qp_min;
> +	qp_set   qp_max;
> +	qp_set   ofs;
> +	int      rc_model_size;
> +	int      rc_edge_factor;
> +	int      rc_tgt_offset_hi;
> +	int      rc_tgt_offset_lo;
> +	int      rc_buf_thresh[QP_SET_SIZE - 1];
> +};
> +
> +enum colour_mode {
> +	CM_RGB,   /* 444 RGB */
> +	CM_444,   /* 444 YUV or simple 422 */
> +	CM_422,   /* native 422 */
> +	CM_420    /* native 420 */
> +};
> +
> +enum bits_per_comp {
> +	BPC_8  =  8,
> +	BPC_10 = 10,
> +	BPC_12 = 12
> +};
> +
> +enum max_min {
> +	DAL_MM_MIN = 0,
> +	DAL_MM_MAX = 1
> +};
> +
> +struct qp_entry {
> +	float         bpp;
> +	const qp_set  qps;
> +};
> +
> +typedef struct qp_entry qp_table[];
> +
> +u32 _do_bytes_per_pixel_calc(int slice_width, u16 drm_bpp,
> +				    bool is_navite_422_or_420);
> +
> +void _do_calc_rc_params(struct rc_params *rc, enum colour_mode cm,
> +			       enum bits_per_comp bpc, u16 drm_bpp,
> +			       bool is_navite_422_or_420,
> +			       int slice_width, int slice_height,
> +			       int minor_version);
> +
> +#endif
> \ No newline at end of file
> diff --git a/drivers/gpu/drm/amd/display/dc/dsc/Makefile b/drivers/gpu/drm/amd/display/dc/dsc/Makefile
> index 8d31eb75c6a6..8d01b8a9fc6a 100644
> --- a/drivers/gpu/drm/amd/display/dc/dsc/Makefile
> +++ b/drivers/gpu/drm/amd/display/dc/dsc/Makefile
> @@ -2,14 +2,6 @@
>   #
>   # Makefile for the 'dsc' sub-component of DAL.
>   
> -ifdef CONFIG_X86
> -dsc_ccflags := -mhard-float -msse
> -endif
> -
> -ifdef CONFIG_PPC64
> -dsc_ccflags := -mhard-float -maltivec
> -endif
> -
>   ifdef CONFIG_CC_IS_GCC
>   ifeq ($(call cc-ifversion, -lt, 0701, y), y)
>   IS_OLD_GCC = 1
> diff --git a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.c b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.c
> index 7b294f637881..87acec33b8d8 100644
> --- a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.c
> +++ b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.c
> @@ -25,264 +25,7 @@
>    */
>   #include <drm/drm_dsc.h>
>   
> -#include "os_types.h"
>   #include "rc_calc.h"
> -#include "qp_tables.h"
> -
> -#define table_hash(mode, bpc, max_min) ((mode << 16) | (bpc << 8) | max_min)
> -
> -#define MODE_SELECT(val444, val422, val420) \
> -	(cm == CM_444 || cm == CM_RGB) ? (val444) : (cm == CM_422 ? (val422) : (val420))
> -
> -
> -#define TABLE_CASE(mode, bpc, max)   case (table_hash(mode, BPC_##bpc, max)): \
> -	table = qp_table_##mode##_##bpc##bpc_##max; \
> -	table_size = sizeof(qp_table_##mode##_##bpc##bpc_##max)/sizeof(*qp_table_##mode##_##bpc##bpc_##max); \
> -	break
> -
> -
> -static void get_qp_set(qp_set qps, enum colour_mode cm, enum bits_per_comp bpc,
> -		       enum max_min max_min, float bpp)
> -{
> -	int mode = MODE_SELECT(444, 422, 420);
> -	int sel = table_hash(mode, bpc, max_min);
> -	int table_size = 0;
> -	int index;
> -	const struct qp_entry *table = 0L;
> -
> -	// alias enum
> -	enum { min = DAL_MM_MIN, max = DAL_MM_MAX };
> -	switch (sel) {
> -		TABLE_CASE(444,  8, max);
> -		TABLE_CASE(444,  8, min);
> -		TABLE_CASE(444, 10, max);
> -		TABLE_CASE(444, 10, min);
> -		TABLE_CASE(444, 12, max);
> -		TABLE_CASE(444, 12, min);
> -		TABLE_CASE(422,  8, max);
> -		TABLE_CASE(422,  8, min);
> -		TABLE_CASE(422, 10, max);
> -		TABLE_CASE(422, 10, min);
> -		TABLE_CASE(422, 12, max);
> -		TABLE_CASE(422, 12, min);
> -		TABLE_CASE(420,  8, max);
> -		TABLE_CASE(420,  8, min);
> -		TABLE_CASE(420, 10, max);
> -		TABLE_CASE(420, 10, min);
> -		TABLE_CASE(420, 12, max);
> -		TABLE_CASE(420, 12, min);
> -	}
> -
> -	if (table == 0)
> -		return;
> -
> -	index = (bpp - table[0].bpp) * 2;
> -
> -	/* requested size is bigger than the table */
> -	if (index >= table_size) {
> -		dm_error("ERROR: Requested rc_calc to find a bpp entry that exceeds the table size\n");
> -		return;
> -	}
> -
> -	memcpy(qps, table[index].qps, sizeof(qp_set));
> -}
> -
> -static double dsc_roundf(double num)
> -{
> -	if (num < 0.0)
> -		num = num - 0.5;
> -	else
> -		num = num + 0.5;
> -
> -	return (int)(num);
> -}
> -
> -static double dsc_ceil(double num)
> -{
> -	double retval = (int)num;
> -
> -	if (retval != num && num > 0)
> -		retval = num + 1;
> -
> -	return (int)retval;
> -}
> -
> -static void get_ofs_set(qp_set ofs, enum colour_mode mode, float bpp)
> -{
> -	int   *p = ofs;
> -
> -	if (mode == CM_444 || mode == CM_RGB) {
> -		*p++ = (bpp <=  6) ? (0) : ((((bpp >=  8) && (bpp <= 12))) ? (2) : ((bpp >= 15) ? (10) : ((((bpp > 6) && (bpp < 8))) ? (0 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (2 + dsc_roundf((bpp - 12) * (8 / 3.0))))));
> -		*p++ = (bpp <=  6) ? (-2) : ((((bpp >=  8) && (bpp <= 12))) ? (0) : ((bpp >= 15) ? (8) : ((((bpp > 6) && (bpp < 8))) ? (-2 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (0 + dsc_roundf((bpp - 12) * (8 / 3.0))))));
> -		*p++ = (bpp <=  6) ? (-2) : ((((bpp >=  8) && (bpp <= 12))) ? (0) : ((bpp >= 15) ? (6) : ((((bpp > 6) && (bpp < 8))) ? (-2 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (0 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
> -		*p++ = (bpp <=  6) ? (-4) : ((((bpp >=  8) && (bpp <= 12))) ? (-2) : ((bpp >= 15) ? (4) : ((((bpp > 6) && (bpp < 8))) ? (-4 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (-2 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
> -		*p++ = (bpp <=  6) ? (-6) : ((((bpp >=  8) && (bpp <= 12))) ? (-4) : ((bpp >= 15) ? (2) : ((((bpp > 6) && (bpp < 8))) ? (-6 + dsc_roundf((bpp -  6) * (2 / 2.0))) : (-4 + dsc_roundf((bpp - 12) * (6 / 3.0))))));
> -		*p++ = (bpp <= 12) ? (-6) : ((bpp >= 15) ? (0) : (-6 + dsc_roundf((bpp - 12) * (6 / 3.0))));
> -		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-2) : (-8 + dsc_roundf((bpp - 12) * (6 / 3.0))));
> -		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-4) : (-8 + dsc_roundf((bpp - 12) * (4 / 3.0))));
> -		*p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-6) : (-8 + dsc_roundf((bpp - 12) * (2 / 3.0))));
> -		*p++ = (bpp <= 12) ? (-10) : ((bpp >= 15) ? (-8) : (-10 + dsc_roundf((bpp - 12) * (2 / 3.0))));
> -		*p++ = -10;
> -		*p++ = (bpp <=  6) ? (-12) : ((bpp >=  8) ? (-10) : (-12 + dsc_roundf((bpp -  6) * (2 / 2.0))));
> -		*p++ = -12;
> -		*p++ = -12;
> -		*p++ = -12;
> -	} else if (mode == CM_422) {
> -		*p++ = (bpp <=  8) ? (2) : ((bpp >= 10) ? (10) : (2 + dsc_roundf((bpp -  8) * (8 / 2.0))));
> -		*p++ = (bpp <=  8) ? (0) : ((bpp >= 10) ? (8) : (0 + dsc_roundf((bpp -  8) * (8 / 2.0))));
> -		*p++ = (bpp <=  8) ? (0) : ((bpp >= 10) ? (6) : (0 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> -		*p++ = (bpp <=  8) ? (-2) : ((bpp >= 10) ? (4) : (-2 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> -		*p++ = (bpp <=  8) ? (-4) : ((bpp >= 10) ? (2) : (-4 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> -		*p++ = (bpp <=  8) ? (-6) : ((bpp >= 10) ? (0) : (-6 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> -		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-2) : (-8 + dsc_roundf((bpp -  8) * (6 / 2.0))));
> -		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-4) : (-8 + dsc_roundf((bpp -  8) * (4 / 2.0))));
> -		*p++ = (bpp <=  8) ? (-8) : ((bpp >= 10) ? (-6) : (-8 + dsc_roundf((bpp -  8) * (2 / 2.0))));
> -		*p++ = (bpp <=  8) ? (-10) : ((bpp >= 10) ? (-8) : (-10 + dsc_roundf((bpp -  8) * (2 / 2.0))));
> -		*p++ = -10;
> -		*p++ = (bpp <=  6) ? (-12) : ((bpp >= 7) ? (-10) : (-12 + dsc_roundf((bpp -  6) * (2.0 / 1))));
> -		*p++ = -12;
> -		*p++ = -12;
> -		*p++ = -12;
> -	} else {
> -		*p++ = (bpp <=  6) ? (2) : ((bpp >=  8) ? (10) : (2 + dsc_roundf((bpp -  6) * (8 / 2.0))));
> -		*p++ = (bpp <=  6) ? (0) : ((bpp >=  8) ? (8) : (0 + dsc_roundf((bpp -  6) * (8 / 2.0))));
> -		*p++ = (bpp <=  6) ? (0) : ((bpp >=  8) ? (6) : (0 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> -		*p++ = (bpp <=  6) ? (-2) : ((bpp >=  8) ? (4) : (-2 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> -		*p++ = (bpp <=  6) ? (-4) : ((bpp >=  8) ? (2) : (-4 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> -		*p++ = (bpp <=  6) ? (-6) : ((bpp >=  8) ? (0) : (-6 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> -		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-2) : (-8 + dsc_roundf((bpp -  6) * (6 / 2.0))));
> -		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-4) : (-8 + dsc_roundf((bpp -  6) * (4 / 2.0))));
> -		*p++ = (bpp <=  6) ? (-8) : ((bpp >=  8) ? (-6) : (-8 + dsc_roundf((bpp -  6) * (2 / 2.0))));
> -		*p++ = (bpp <=  6) ? (-10) : ((bpp >=  8) ? (-8) : (-10 + dsc_roundf((bpp -  6) * (2 / 2.0))));
> -		*p++ = -10;
> -		*p++ = (bpp <=  4) ? (-12) : ((bpp >=  5) ? (-10) : (-12 + dsc_roundf((bpp -  4) * (2 / 1.0))));
> -		*p++ = -12;
> -		*p++ = -12;
> -		*p++ = -12;
> -	}
> -}
> -
> -static int median3(int a, int b, int c)
> -{
> -	if (a > b)
> -		swap(a, b);
> -	if (b > c)
> -		swap(b, c);
> -	if (a > b)
> -		swap(b, c);
> -
> -	return b;
> -}
> -
> -static void _do_calc_rc_params(struct rc_params *rc, enum colour_mode cm,
> -			       enum bits_per_comp bpc, u16 drm_bpp,
> -			       bool is_navite_422_or_420,
> -			       int slice_width, int slice_height,
> -			       int minor_version)
> -{
> -	float bpp;
> -	float bpp_group;
> -	float initial_xmit_delay_factor;
> -	int padding_pixels;
> -	int i;
> -
> -	bpp = ((float)drm_bpp / 16.0);
> -	/* in native_422 or native_420 modes, the bits_per_pixel is double the
> -	 * target bpp (the latter is what calc_rc_params expects)
> -	 */
> -	if (is_navite_422_or_420)
> -		bpp /= 2.0;
> -
> -	rc->rc_quant_incr_limit0 = ((bpc == BPC_8) ? 11 : (bpc == BPC_10 ? 15 : 19)) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> -	rc->rc_quant_incr_limit1 = ((bpc == BPC_8) ? 11 : (bpc == BPC_10 ? 15 : 19)) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> -
> -	bpp_group = MODE_SELECT(bpp, bpp * 2.0, bpp * 2.0);
> -
> -	switch (cm) {
> -	case CM_420:
> -		rc->initial_fullness_offset = (bpp >=  6) ? (2048) : ((bpp <=  4) ? (6144) : ((((bpp >  4) && (bpp <=  5))) ? (6144 - dsc_roundf((bpp - 4) * (512))) : (5632 - dsc_roundf((bpp -  5) * (3584)))));
> -		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)((3 * bpc * 3) - (3 * bpp_group)));
> -		rc->second_line_bpg_offset  = median3(0, 12, (int)((3 * bpc * 3) - (3 * bpp_group)));
> -		break;
> -	case CM_422:
> -		rc->initial_fullness_offset = (bpp >=  8) ? (2048) : ((bpp <=  7) ? (5632) : (5632 - dsc_roundf((bpp - 7) * (3584))));
> -		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)((3 * bpc * 4) - (3 * bpp_group)));
> -		rc->second_line_bpg_offset  = 0;
> -		break;
> -	case CM_444:
> -	case CM_RGB:
> -		rc->initial_fullness_offset = (bpp >= 12) ? (2048) : ((bpp <=  8) ? (6144) : ((((bpp >  8) && (bpp <= 10))) ? (6144 - dsc_roundf((bpp - 8) * (512 / 2))) : (5632 - dsc_roundf((bpp - 10) * (3584 / 2)))));
> -		rc->first_line_bpg_offset   = median3(0, (12 + (int) (0.09 *  min(34, slice_height - 8))), (int)(((3 * bpc + (cm == CM_444 ? 0 : 2)) * 3) - (3 * bpp_group)));
> -		rc->second_line_bpg_offset  = 0;
> -		break;
> -	}
> -
> -	initial_xmit_delay_factor = (cm == CM_444 || cm == CM_RGB) ? 1.0 : 2.0;
> -	rc->initial_xmit_delay = dsc_roundf(8192.0/2.0/bpp/initial_xmit_delay_factor);
> -
> -	if (cm == CM_422 || cm == CM_420)
> -		slice_width /= 2;
> -
> -	padding_pixels = ((slice_width % 3) != 0) ? (3 - (slice_width % 3)) * (rc->initial_xmit_delay / slice_width) : 0;
> -	if (3 * bpp_group >= (((rc->initial_xmit_delay + 2) / 3) * (3 + (cm == CM_422)))) {
> -		if ((rc->initial_xmit_delay + padding_pixels) % 3 == 1)
> -			rc->initial_xmit_delay++;
> -	}
> -
> -	rc->flatness_min_qp     = ((bpc == BPC_8) ?  (3) : ((bpc == BPC_10) ? (7)  : (11))) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> -	rc->flatness_max_qp     = ((bpc == BPC_8) ? (12) : ((bpc == BPC_10) ? (16) : (20))) - ((minor_version == 1 && cm == CM_444) ? 1 : 0);
> -	rc->flatness_det_thresh = 2 << (bpc - 8);
> -
> -	get_qp_set(rc->qp_min, cm, bpc, DAL_MM_MIN, bpp);
> -	get_qp_set(rc->qp_max, cm, bpc, DAL_MM_MAX, bpp);
> -	if (cm == CM_444 && minor_version == 1) {
> -		for (i = 0; i < QP_SET_SIZE; ++i) {
> -			rc->qp_min[i] = rc->qp_min[i] > 0 ? rc->qp_min[i] - 1 : 0;
> -			rc->qp_max[i] = rc->qp_max[i] > 0 ? rc->qp_max[i] - 1 : 0;
> -		}
> -	}
> -	get_ofs_set(rc->ofs, cm, bpp);
> -
> -	/* fixed parameters */
> -	rc->rc_model_size    = 8192;
> -	rc->rc_edge_factor   = 6;
> -	rc->rc_tgt_offset_hi = 3;
> -	rc->rc_tgt_offset_lo = 3;
> -
> -	rc->rc_buf_thresh[0] = 896;
> -	rc->rc_buf_thresh[1] = 1792;
> -	rc->rc_buf_thresh[2] = 2688;
> -	rc->rc_buf_thresh[3] = 3584;
> -	rc->rc_buf_thresh[4] = 4480;
> -	rc->rc_buf_thresh[5] = 5376;
> -	rc->rc_buf_thresh[6] = 6272;
> -	rc->rc_buf_thresh[7] = 6720;
> -	rc->rc_buf_thresh[8] = 7168;
> -	rc->rc_buf_thresh[9] = 7616;
> -	rc->rc_buf_thresh[10] = 7744;
> -	rc->rc_buf_thresh[11] = 7872;
> -	rc->rc_buf_thresh[12] = 8000;
> -	rc->rc_buf_thresh[13] = 8064;
> -}
> -
> -static u32 _do_bytes_per_pixel_calc(int slice_width, u16 drm_bpp,
> -				    bool is_navite_422_or_420)
> -{
> -	float bpp;
> -	u32 bytes_per_pixel;
> -	double d_bytes_per_pixel;
> -
> -	bpp = ((float)drm_bpp / 16.0);
> -	d_bytes_per_pixel = dsc_ceil(bpp * slice_width / 8.0) / slice_width;
> -	// TODO: Make sure the formula for calculating this is precise (ceiling
> -	// vs. floor, and at what point they should be applied)
> -	if (is_navite_422_or_420)
> -		d_bytes_per_pixel /= 2;
> -
> -	bytes_per_pixel = (u32)dsc_ceil(d_bytes_per_pixel * 0x10000000);
> -
> -	return bytes_per_pixel;
> -}
>   
>   /**
>    * calc_rc_params - reads the user's cmdline mode
> diff --git a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.h b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.h
> index 262f06afcbf9..c2340e001b57 100644
> --- a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.h
> +++ b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc.h
> @@ -27,55 +27,7 @@
>   #ifndef __RC_CALC_H__
>   #define __RC_CALC_H__
>   
> -
> -#define QP_SET_SIZE 15
> -
> -typedef int qp_set[QP_SET_SIZE];
> -
> -struct rc_params {
> -	int      rc_quant_incr_limit0;
> -	int      rc_quant_incr_limit1;
> -	int      initial_fullness_offset;
> -	int      initial_xmit_delay;
> -	int      first_line_bpg_offset;
> -	int      second_line_bpg_offset;
> -	int      flatness_min_qp;
> -	int      flatness_max_qp;
> -	int      flatness_det_thresh;
> -	qp_set   qp_min;
> -	qp_set   qp_max;
> -	qp_set   ofs;
> -	int      rc_model_size;
> -	int      rc_edge_factor;
> -	int      rc_tgt_offset_hi;
> -	int      rc_tgt_offset_lo;
> -	int      rc_buf_thresh[QP_SET_SIZE - 1];
> -};
> -
> -enum colour_mode {
> -	CM_RGB,   /* 444 RGB */
> -	CM_444,   /* 444 YUV or simple 422 */
> -	CM_422,   /* native 422 */
> -	CM_420    /* native 420 */
> -};
> -
> -enum bits_per_comp {
> -	BPC_8  =  8,
> -	BPC_10 = 10,
> -	BPC_12 = 12
> -};
> -
> -enum max_min {
> -	DAL_MM_MIN = 0,
> -	DAL_MM_MAX = 1
> -};
> -
> -struct qp_entry {
> -	float         bpp;
> -	const qp_set  qps;
> -};
> -
> -typedef struct qp_entry qp_table[];
> +#include "dml/dsc/rc_calc_fpu.h"
>   
>   void calc_rc_params(struct rc_params *rc, const struct drm_dsc_config *pps);
>   u32 calc_dsc_bytes_per_pixel(const struct drm_dsc_config *pps);
> diff --git a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c
> index ef830aded5b1..1e19dd674e5a 100644
> --- a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c
> +++ b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c
> @@ -22,7 +22,6 @@
>    * Authors: AMD
>    *
>    */
> -#include "os_types.h"
>   #include <drm/drm_dsc.h>
>   #include "dscc_types.h"
>   #include "rc_calc.h"


^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2021-09-20  7:36 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-09-07 14:32 [PATCH] drm/amd/display: move FPU associated DSC code to DML folder Qingqing Zhuo
2021-09-14 15:52 ` Anson Jacob
2021-09-17 15:07 ` [PATCH] " Rodrigo Siqueira
2021-09-20  7:36 ` Christian König

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