Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 403 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dccg.c b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dccg.c
new file mode 100644
index 000000000..ad3f019a7
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dccg.c
@@ -0,0 +1,403 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright 2022 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 "reg_helper.h"
+#include "core_types.h"
+
+#include "dcn31/dcn31_dccg.h"
+#include "dcn314_dccg.h"
+
+#define TO_DCN_DCCG(dccg)\
+	container_of(dccg, struct dcn_dccg, base)
+
+#define REG(reg) \
+	(dccg_dcn->regs->reg)
+
+#undef FN
+#define FN(reg_name, field_name) \
+	dccg_dcn->dccg_shift->field_name, dccg_dcn->dccg_mask->field_name
+
+#define CTX \
+	dccg_dcn->base.ctx
+#define DC_LOGGER \
+	dccg->ctx->logger
+
+static void dccg314_trigger_dio_fifo_resync(
+	struct dccg *dccg)
+{
+	struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg);
+	uint32_t dispclk_rdivider_value = 0;
+
+	REG_GET(DENTIST_DISPCLK_CNTL, DENTIST_DISPCLK_RDIVIDER, &dispclk_rdivider_value);
+	REG_UPDATE(DENTIST_DISPCLK_CNTL, DENTIST_DISPCLK_WDIVIDER, dispclk_rdivider_value);
+}
+
+static void dccg314_get_pixel_rate_div(
+		struct dccg *dccg,
+		uint32_t otg_inst,
+		enum pixel_rate_div *k1,
+		enum pixel_rate_div *k2)
+{
+	struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg);
+	uint32_t val_k1 = PIXEL_RATE_DIV_NA, val_k2 = PIXEL_RATE_DIV_NA;
+
+	*k1 = PIXEL_RATE_DIV_NA;
+	*k2 = PIXEL_RATE_DIV_NA;
+
+	switch (otg_inst) {
+	case 0:
+		REG_GET_2(OTG_PIXEL_RATE_DIV,
+			OTG0_PIXEL_RATE_DIVK1, &val_k1,
+			OTG0_PIXEL_RATE_DIVK2, &val_k2);
+		break;
+	case 1:
+		REG_GET_2(OTG_PIXEL_RATE_DIV,
+			OTG1_PIXEL_RATE_DIVK1, &val_k1,
+			OTG1_PIXEL_RATE_DIVK2, &val_k2);
+		break;
+	case 2:
+		REG_GET_2(OTG_PIXEL_RATE_DIV,
+			OTG2_PIXEL_RATE_DIVK1, &val_k1,
+			OTG2_PIXEL_RATE_DIVK2, &val_k2);
+		break;
+	case 3:
+		REG_GET_2(OTG_PIXEL_RATE_DIV,
+			OTG3_PIXEL_RATE_DIVK1, &val_k1,
+			OTG3_PIXEL_RATE_DIVK2, &val_k2);
+		break;
+	default:
+		BREAK_TO_DEBUGGER();
+		return;
+	}
+
+	*k1 = (enum pixel_rate_div)val_k1;
+	*k2 = (enum pixel_rate_div)val_k2;
+}
+
+static void dccg314_set_pixel_rate_div(
+		struct dccg *dccg,
+		uint32_t otg_inst,
+		enum pixel_rate_div k1,
+		enum pixel_rate_div k2)
+{
+	struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg);
+	enum pixel_rate_div cur_k1 = PIXEL_RATE_DIV_NA, cur_k2 = PIXEL_RATE_DIV_NA;
+
+	// Don't program 0xF into the register field. Not valid since
+	// K1 / K2 field is only 1 / 2 bits wide
+	if (k1 == PIXEL_RATE_DIV_NA || k2 == PIXEL_RATE_DIV_NA) {
+		BREAK_TO_DEBUGGER();
+		return;
+	}
+
+	dccg314_get_pixel_rate_div(dccg, otg_inst, &cur_k1, &cur_k2);
+	if (k1 == cur_k1 && k2 == cur_k2)
+		return;
+
+	switch (otg_inst) {
+	case 0:
+		REG_UPDATE_2(OTG_PIXEL_RATE_DIV,
+				OTG0_PIXEL_RATE_DIVK1, k1,
+				OTG0_PIXEL_RATE_DIVK2, k2);
+		break;
+	case 1:
+		REG_UPDATE_2(OTG_PIXEL_RATE_DIV,
+				OTG1_PIXEL_RATE_DIVK1, k1,
+				OTG1_PIXEL_RATE_DIVK2, k2);
+		break;
+	case 2:
+		REG_UPDATE_2(OTG_PIXEL_RATE_DIV,
+				OTG2_PIXEL_RATE_DIVK1, k1,
+				OTG2_PIXEL_RATE_DIVK2, k2);
+		break;
+	case 3:
+		REG_UPDATE_2(OTG_PIXEL_RATE_DIV,
+				OTG3_PIXEL_RATE_DIVK1, k1,
+				OTG3_PIXEL_RATE_DIVK2, k2);
+		break;
+	default:
+		BREAK_TO_DEBUGGER();
+		return;
+	}
+}
+
+static void dccg314_set_dtbclk_p_src(
+		struct dccg *dccg,
+		enum streamclk_source src,
+		uint32_t otg_inst)
+{
+	struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg);
+
+	uint32_t p_src_sel = 0; /* selects dprefclk */
+
+	if (src == DTBCLK0)
+		p_src_sel = 2;  /* selects dtbclk0 */
+
+	switch (otg_inst) {
+	case 0:
+		if (src == REFCLK)
+			REG_UPDATE(DTBCLK_P_CNTL,
+					DTBCLK_P0_EN, 0);
+		else
+			REG_UPDATE_2(DTBCLK_P_CNTL,
+					DTBCLK_P0_SRC_SEL, p_src_sel,
+					DTBCLK_P0_EN, 1);
+		break;
+	case 1:
+		if (src == REFCLK)
+			REG_UPDATE(DTBCLK_P_CNTL,
+					DTBCLK_P1_EN, 0);
+		else
+			REG_UPDATE_2(DTBCLK_P_CNTL,
+					DTBCLK_P1_SRC_SEL, p_src_sel,
+					DTBCLK_P1_EN, 1);
+		break;
+	case 2:
+		if (src == REFCLK)
+			REG_UPDATE(DTBCLK_P_CNTL,
+					DTBCLK_P2_EN, 0);
+		else
+			REG_UPDATE_2(DTBCLK_P_CNTL,
+					DTBCLK_P2_SRC_SEL, p_src_sel,
+					DTBCLK_P2_EN, 1);
+		break;
+	case 3:
+		if (src == REFCLK)
+			REG_UPDATE(DTBCLK_P_CNTL,
+					DTBCLK_P3_EN, 0);
+		else
+			REG_UPDATE_2(DTBCLK_P_CNTL,
+					DTBCLK_P3_SRC_SEL, p_src_sel,
+					DTBCLK_P3_EN, 1);
+		break;
+	default:
+		BREAK_TO_DEBUGGER();
+		return;
+	}
+
+}
+
+/* Controls the generation of pixel valid for OTG in (OTG -> HPO case) */
+static void dccg314_set_dtbclk_dto(
+		struct dccg *dccg,
+		const struct dtbclk_dto_params *params)
+{
+	struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg);
+	/* DTO Output Rate / Pixel Rate = 1/4 */
+	int req_dtbclk_khz = params->pixclk_khz / 4;
+
+	if (params->ref_dtbclk_khz && req_dtbclk_khz) {
+		uint32_t modulo, phase;
+
+		// phase / modulo = dtbclk / dtbclk ref
+		modulo = params->ref_dtbclk_khz * 1000;
+		phase = req_dtbclk_khz * 1000;
+
+		REG_WRITE(DTBCLK_DTO_MODULO[params->otg_inst], modulo);
+		REG_WRITE(DTBCLK_DTO_PHASE[params->otg_inst], phase);
+
+		REG_UPDATE(OTG_PIXEL_RATE_CNTL[params->otg_inst],
+				DTBCLK_DTO_ENABLE[params->otg_inst], 1);
+
+		REG_WAIT(OTG_PIXEL_RATE_CNTL[params->otg_inst],
+				DTBCLKDTO_ENABLE_STATUS[params->otg_inst], 1,
+				1, 100);
+
+		/* program OTG_PIXEL_RATE_DIV for DIVK1 and DIVK2 fields */
+		dccg314_set_pixel_rate_div(dccg, params->otg_inst, PIXEL_RATE_DIV_BY_1, PIXEL_RATE_DIV_BY_1);
+
+		/* The recommended programming sequence to enable DTBCLK DTO to generate
+		 * valid pixel HPO DPSTREAM ENCODER, specifies that DTO source select should
+		 * be set only after DTO is enabled
+		 */
+		REG_UPDATE(OTG_PIXEL_RATE_CNTL[params->otg_inst],
+				PIPE_DTO_SRC_SEL[params->otg_inst], 2);
+	} else {
+		REG_UPDATE_2(OTG_PIXEL_RATE_CNTL[params->otg_inst],
+				DTBCLK_DTO_ENABLE[params->otg_inst], 0,
+				PIPE_DTO_SRC_SEL[params->otg_inst], 1);
+
+		REG_WRITE(DTBCLK_DTO_MODULO[params->otg_inst], 0);
+		REG_WRITE(DTBCLK_DTO_PHASE[params->otg_inst], 0);
+	}
+}
+
+static void dccg314_set_dpstreamclk(
+		struct dccg *dccg,
+		enum streamclk_source src,
+		int otg_inst,
+		int dp_hpo_inst)
+{
+	struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg);
+
+	/* set the dtbclk_p source */
+	dccg314_set_dtbclk_p_src(dccg, src, otg_inst);
+
+	/* enabled to select one of the DTBCLKs for pipe */
+	switch (dp_hpo_inst) {
+	case 0:
+		REG_UPDATE_2(DPSTREAMCLK_CNTL,
+					DPSTREAMCLK0_EN, (src == REFCLK) ? 0 : 1,
+					DPSTREAMCLK0_SRC_SEL, otg_inst);
+		break;
+	case 1:
+		REG_UPDATE_2(DPSTREAMCLK_CNTL,
+					DPSTREAMCLK1_EN, (src == REFCLK) ? 0 : 1,
+					DPSTREAMCLK1_SRC_SEL, otg_inst);
+		break;
+	case 2:
+		REG_UPDATE_2(DPSTREAMCLK_CNTL,
+					DPSTREAMCLK2_EN, (src == REFCLK) ? 0 : 1,
+					DPSTREAMCLK2_SRC_SEL, otg_inst);
+		break;
+	case 3:
+		REG_UPDATE_2(DPSTREAMCLK_CNTL,
+					DPSTREAMCLK3_EN, (src == REFCLK) ? 0 : 1,
+					DPSTREAMCLK3_SRC_SEL, otg_inst);
+		break;
+	default:
+		BREAK_TO_DEBUGGER();
+		return;
+	}
+}
+
+static void dccg314_init(struct dccg *dccg)
+{
+	int otg_inst;
+
+	/* Set HPO stream encoder to use refclk to avoid case where PHY is
+	 * disabled and SYMCLK32 for HPO SE is sourced from PHYD32CLK which
+	 * will cause DCN to hang.
+	 */
+	for (otg_inst = 0; otg_inst < 4; otg_inst++)
+		dccg31_disable_symclk32_se(dccg, otg_inst);
+
+	if (dccg->ctx->dc->debug.root_clock_optimization.bits.symclk32_le)
+		for (otg_inst = 0; otg_inst < 2; otg_inst++)
+			dccg31_disable_symclk32_le(dccg, otg_inst);
+
+	if (dccg->ctx->dc->debug.root_clock_optimization.bits.dpstream)
+		for (otg_inst = 0; otg_inst < 4; otg_inst++)
+			dccg314_set_dpstreamclk(dccg, REFCLK, otg_inst,
+						otg_inst);
+
+	if (dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk)
+		for (otg_inst = 0; otg_inst < 5; otg_inst++)
+			dccg31_set_physymclk(dccg, otg_inst,
+					     PHYSYMCLK_FORCE_SRC_SYMCLK, false);
+}
+
+static void dccg314_set_valid_pixel_rate(
+		struct dccg *dccg,
+		int ref_dtbclk_khz,
+		int otg_inst,
+		int pixclk_khz)
+{
+	struct dtbclk_dto_params dto_params = {0};
+
+	dto_params.ref_dtbclk_khz = ref_dtbclk_khz;
+	dto_params.otg_inst = otg_inst;
+	dto_params.pixclk_khz = pixclk_khz;
+
+	dccg314_set_dtbclk_dto(dccg, &dto_params);
+}
+
+static void dccg314_dpp_root_clock_control(
+		struct dccg *dccg,
+		unsigned int dpp_inst,
+		bool clock_on)
+{
+	struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg);
+
+	if (dccg->dpp_clock_gated[dpp_inst] != clock_on)
+		return;
+
+	if (clock_on) {
+		/* turn off the DTO and leave phase/modulo at max */
+		REG_UPDATE(DPPCLK_DTO_CTRL, DPPCLK_DTO_ENABLE[dpp_inst], 0);
+		REG_SET_2(DPPCLK_DTO_PARAM[dpp_inst], 0,
+			  DPPCLK0_DTO_PHASE, 0xFF,
+			  DPPCLK0_DTO_MODULO, 0xFF);
+	} else {
+		/* turn on the DTO to generate a 0hz clock */
+		REG_UPDATE(DPPCLK_DTO_CTRL, DPPCLK_DTO_ENABLE[dpp_inst], 1);
+		REG_SET_2(DPPCLK_DTO_PARAM[dpp_inst], 0,
+			  DPPCLK0_DTO_PHASE, 0,
+			  DPPCLK0_DTO_MODULO, 1);
+	}
+
+	dccg->dpp_clock_gated[dpp_inst] = !clock_on;
+}
+
+static const struct dccg_funcs dccg314_funcs = {
+	.update_dpp_dto = dccg31_update_dpp_dto,
+	.dpp_root_clock_control = dccg314_dpp_root_clock_control,
+	.get_dccg_ref_freq = dccg31_get_dccg_ref_freq,
+	.dccg_init = dccg314_init,
+	.set_dpstreamclk = dccg314_set_dpstreamclk,
+	.enable_symclk32_se = dccg31_enable_symclk32_se,
+	.disable_symclk32_se = dccg31_disable_symclk32_se,
+	.enable_symclk32_le = dccg31_enable_symclk32_le,
+	.disable_symclk32_le = dccg31_disable_symclk32_le,
+	.set_symclk32_le_root_clock_gating = dccg31_set_symclk32_le_root_clock_gating,
+	.set_physymclk = dccg31_set_physymclk,
+	.set_dtbclk_dto = dccg314_set_dtbclk_dto,
+	.set_audio_dtbclk_dto = dccg31_set_audio_dtbclk_dto,
+	.set_fifo_errdet_ovr_en = dccg2_set_fifo_errdet_ovr_en,
+	.otg_add_pixel = dccg31_otg_add_pixel,
+	.otg_drop_pixel = dccg31_otg_drop_pixel,
+	.set_dispclk_change_mode = dccg31_set_dispclk_change_mode,
+	.disable_dsc = dccg31_disable_dscclk,
+	.enable_dsc = dccg31_enable_dscclk,
+	.set_pixel_rate_div = dccg314_set_pixel_rate_div,
+	.trigger_dio_fifo_resync = dccg314_trigger_dio_fifo_resync,
+	.set_valid_pixel_rate = dccg314_set_valid_pixel_rate,
+};
+
+struct dccg *dccg314_create(
+	struct dc_context *ctx,
+	const struct dccg_registers *regs,
+	const struct dccg_shift *dccg_shift,
+	const struct dccg_mask *dccg_mask)
+{
+	struct dcn_dccg *dccg_dcn = kzalloc(sizeof(*dccg_dcn), GFP_KERNEL);
+	struct dccg *base;
+
+	if (dccg_dcn == NULL) {
+		BREAK_TO_DEBUGGER();
+		return NULL;
+	}
+
+	base = &dccg_dcn->base;
+	base->ctx = ctx;
+	base->funcs = &dccg314_funcs;
+
+	dccg_dcn->regs = regs;
+	dccg_dcn->dccg_shift = dccg_shift;
+	dccg_dcn->dccg_mask = dccg_mask;
+
+	return &dccg_dcn->base;
+}