drm/amd/display: add cyan_skillfish display support

[Why]
add display related cyan_skillfish files in.

makefile controlled by CONFIG_DRM_AMD_DC_DCN201 flag.

v2: squash in clang fixes from Harry, Nathan
v3: squash in missing CONFIG_DRM_AMD_DC check (Alex)

Signed-off-by: Charlene Liu <charlene.liu@amd.com>
Signed-off-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Acked-by: Jun Lei <jun.lei@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_device.c

@@ -3241,6 +3241,7 @@ bool amdgpu_device_asic_has_dc_support(enum amd_asic_type asic_type)
 	case CHIP_NAVI14:
 	case CHIP_NAVI12:
 	case CHIP_RENOIR:
+	case CHIP_CYAN_SKILLFISH:
 	case CHIP_SIENNA_CICHLID:
 	case CHIP_NAVY_FLOUNDER:
 	case CHIP_DIMGREY_CAVEFISH:

drivers/gpu/drm/amd/amdgpu/nv.c

@@ -906,6 +906,10 @@ int nv_set_ip_blocks(struct amdgpu_device *adev)
 		}
 		if (adev->enable_virtual_display || amdgpu_sriov_vf(adev))
 			amdgpu_device_ip_block_add(adev, &amdgpu_vkms_ip_block);
+#if defined(CONFIG_DRM_AMD_DC)
+		else if (amdgpu_device_has_dc_support(adev))
+			amdgpu_device_ip_block_add(adev, &dm_ip_block);
+#endif
 		amdgpu_device_ip_block_add(adev, &gfx_v10_0_ip_block);
 		amdgpu_device_ip_block_add(adev, &sdma_v5_0_ip_block);
 		break;

drivers/gpu/drm/amd/display/Kconfig

@@ -17,6 +17,15 @@ config DRM_AMD_DC_DCN
 	help
 	  Raven, Navi, and newer family support for display engine
 
+config DRM_AMD_DC_DCN201
+	bool "Enable DCN201 support in DC"
+	default y
+	depends on DRM_AMD_DC && X86
+	depends on DRM_AMD_DC_DCN
+	help
+	  Choose this option if you want to have
+	  201 support for display engine
+
 config DRM_AMD_DC_HDCP
 	bool "Enable HDCP support in DC"
 	depends on DRM_AMD_DC

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

@@ -1352,6 +1352,9 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
 	case CHIP_YELLOW_CARP:
 		init_data.flags.gpu_vm_support = true;
 		break;
+	case CHIP_CYAN_SKILLFISH:
+		init_data.flags.disable_dmcu = true;
+		break;
 	default:
 		break;
 	}
@@ -1647,6 +1650,7 @@ static int load_dmcu_fw(struct amdgpu_device *adev)
 	case CHIP_BEIGE_GOBY:
 	case CHIP_VANGOGH:
 	case CHIP_YELLOW_CARP:
+	case CHIP_CYAN_SKILLFISH:
 		return 0;
 	case CHIP_NAVI12:
 		fw_name_dmcu = FIRMWARE_NAVI12_DMCU;
@@ -4182,6 +4186,7 @@ static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev)
 	case CHIP_DIMGREY_CAVEFISH:
 	case CHIP_BEIGE_GOBY:
 	case CHIP_VANGOGH:
+	case CHIP_CYAN_SKILLFISH:
 	case CHIP_YELLOW_CARP:
 		if (dcn10_register_irq_handlers(dm->adev)) {
 			DRM_ERROR("DM: Failed to initialize IRQ\n");
@@ -4359,6 +4364,11 @@ static int dm_early_init(void *handle)
 		adev->mode_info.num_hpd = 4;
 		adev->mode_info.num_dig = 4;
 		break;
+	case CHIP_CYAN_SKILLFISH:
+		adev->mode_info.num_crtc = 2;
+		adev->mode_info.num_hpd = 2;
+		adev->mode_info.num_dig = 2;
+		break;
 	case CHIP_NAVI14:
 	case CHIP_DIMGREY_CAVEFISH:
 		adev->mode_info.num_crtc = 5;

drivers/gpu/drm/amd/display/dc/Makefile

@@ -30,6 +30,9 @@ DC_LIBS += dcn20
 DC_LIBS += dsc
 DC_LIBS += dcn10 dml
 DC_LIBS += dcn21
+ifdef CONFIG_DRM_AMD_DC_DCN201
+DC_LIBS += dcn201
+endif
 DC_LIBS += dcn30
 DC_LIBS += dcn301
 DC_LIBS += dcn302

drivers/gpu/drm/amd/display/dc/bios/command_table_helper2.c

@@ -70,6 +70,7 @@ bool dal_bios_parser_init_cmd_tbl_helper2(
 	case DCN_VERSION_1_01:
 	case DCN_VERSION_2_0:
 	case DCN_VERSION_2_1:
+	case DCN_VERSION_2_01:
 	case DCN_VERSION_3_0:
 	case DCN_VERSION_3_01:
 	case DCN_VERSION_3_02:

drivers/gpu/drm/amd/display/dc/clk_mgr/Makefile

@@ -93,6 +93,17 @@ AMD_DAL_CLK_MGR_DCN20 = $(addprefix $(AMDDALPATH)/dc/clk_mgr/dcn20/,$(CLK_MGR_DC
 
 AMD_DISPLAY_FILES += $(AMD_DAL_CLK_MGR_DCN20)
 
+ifdef CONFIG_DRM_AMD_DC_DCN201
+###############################################################################
+# DCN201
+###############################################################################
+CLK_MGR_DCN201 = dcn201_clk_mgr.o
+
+AMD_DAL_CLK_MGR_DCN201 = $(addprefix $(AMDDALPATH)/dc/clk_mgr/dcn201/,$(CLK_MGR_DCN201))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_CLK_MGR_DCN201)
+endif
+
 ###############################################################################
 # DCN21
 ###############################################################################

drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c

@@ -39,6 +39,7 @@
 #include "dcn10/rv2_clk_mgr.h"
 #include "dcn20/dcn20_clk_mgr.h"
 #include "dcn21/rn_clk_mgr.h"
+#include "dcn201/dcn201_clk_mgr.h"
 #include "dcn30/dcn30_clk_mgr.h"
 #include "dcn301/vg_clk_mgr.h"
 #include "dcn31/dcn31_clk_mgr.h"
@@ -256,6 +257,12 @@ struct clk_mgr *dc_clk_mgr_create(struct dc_context *ctx, struct pp_smu_funcs *p
 			dcn3_clk_mgr_construct(ctx, clk_mgr, pp_smu, dccg);
 			return &clk_mgr->base;
 		}
+#if defined(CONFIG_DRM_AMD_DC_DCN201)
+		if (asic_id.chip_id == DEVICE_ID_NV_13FE) {
+			dcn201_clk_mgr_construct(ctx, clk_mgr, pp_smu, dccg);
+			return &clk_mgr->base;
+		}
+#endif
 		dcn20_clk_mgr_construct(ctx, clk_mgr, pp_smu, dccg);
 		return &clk_mgr->base;
 	}

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn201/dcn201_clk_mgr.c

@@ -0,0 +1,260 @@
+/*
+ * Copyright 2018 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 "dccg.h"
+#include "clk_mgr_internal.h"
+#include "dcn201_clk_mgr.h"
+#include "dcn20/dcn20_clk_mgr.h"
+#include "dce100/dce_clk_mgr.h"
+#include "reg_helper.h"
+#include "core_types.h"
+#include "dm_helpers.h"
+#include "dm_services.h"
+
+#include "cyan_skillfish_ip_offset.h"
+#include "dcn/dcn_2_0_3_offset.h"
+#include "dcn/dcn_2_0_3_sh_mask.h"
+#include "clk/clk_11_0_1_offset.h"
+#include "clk/clk_11_0_1_sh_mask.h"
+
+#define REG(reg) \
+	(clk_mgr->regs->reg)
+
+#define BASE_INNER(seg) DMU_BASE__INST0_SEG ## seg
+
+#define BASE(seg) BASE_INNER(seg)
+
+#define SR(reg_name)\
+		.reg_name = BASE(mm ## reg_name ## _BASE_IDX) +  \
+					mm ## reg_name
+
+#define CLK_BASE_INNER(seg) \
+	CLK_BASE__INST0_SEG ## seg
+
+#undef FN
+#define FN(reg_name, field_name) \
+	clk_mgr->clk_mgr_shift->field_name, clk_mgr->clk_mgr_mask->field_name
+
+#define CTX \
+	clk_mgr->base.ctx
+#define DC_LOGGER \
+	clk_mgr->base.ctx->logger
+
+static const struct clk_mgr_registers clk_mgr_regs = {
+		CLK_COMMON_REG_LIST_DCN_201()
+};
+
+static const struct clk_mgr_shift clk_mgr_shift = {
+	CLK_COMMON_MASK_SH_LIST_DCN201_BASE(__SHIFT)
+};
+
+static const struct clk_mgr_mask clk_mgr_mask = {
+	CLK_COMMON_MASK_SH_LIST_DCN201_BASE(_MASK)
+};
+
+void dcn201_update_clocks_vbios(struct clk_mgr *clk_mgr,
+			struct dc_state *context,
+			bool safe_to_lower)
+{
+	struct dc_clocks *new_clocks = &context->bw_ctx.bw.dcn.clk;
+
+	bool update_dppclk = false;
+	bool update_dispclk = false;
+
+	if (should_set_clock(safe_to_lower, new_clocks->dppclk_khz, clk_mgr->clks.dppclk_khz)) {
+		clk_mgr->clks.dppclk_khz = new_clocks->dppclk_khz;
+		update_dppclk = true;
+	}
+
+	if (should_set_clock(safe_to_lower, new_clocks->dispclk_khz, clk_mgr->clks.dispclk_khz)) {
+		clk_mgr->clks.dispclk_khz = new_clocks->dispclk_khz;
+		update_dispclk = true;
+	}
+
+	if (update_dppclk || update_dispclk) {
+		struct bp_set_dce_clock_parameters dce_clk_params;
+		struct dc_bios *bp = clk_mgr->ctx->dc_bios;
+
+		if (update_dispclk) {
+			memset(&dce_clk_params, 0, sizeof(dce_clk_params));
+			dce_clk_params.target_clock_frequency = new_clocks->dispclk_khz;
+			dce_clk_params.pll_id = CLOCK_SOURCE_ID_DFS;
+			dce_clk_params.clock_type = DCECLOCK_TYPE_DISPLAY_CLOCK;
+			bp->funcs->set_dce_clock(bp, &dce_clk_params);
+		}
+		/* currently there is no DCECLOCK_TYPE_DPPCLK type defined in VBIOS interface.
+		 * vbios program DPPCLK to the same DispCLK limitation
+		 */
+	}
+}
+
+static void dcn201_init_clocks(struct clk_mgr *clk_mgr)
+{
+	memset(&(clk_mgr->clks), 0, sizeof(struct dc_clocks));
+	clk_mgr->clks.p_state_change_support = true;
+	clk_mgr->clks.prev_p_state_change_support = true;
+	clk_mgr->clks.max_supported_dppclk_khz = 1200000;
+	clk_mgr->clks.max_supported_dispclk_khz = 1200000;
+}
+
+static void dcn201_update_clocks(struct clk_mgr *clk_mgr_base,
+	struct dc_state *context,
+	bool safe_to_lower)
+{
+	struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base);
+	struct dc_clocks *new_clocks = &context->bw_ctx.bw.dcn.clk;
+	struct dc *dc = clk_mgr_base->ctx->dc;
+	int display_count;
+	bool update_dppclk = false;
+	bool update_dispclk = false;
+	bool enter_display_off = false;
+	bool dpp_clock_lowered = false;
+	bool force_reset = false;
+	bool p_state_change_support;
+	int total_plane_count;
+
+	if (dc->work_arounds.skip_clock_update)
+		return;
+
+	if (clk_mgr_base->clks.dispclk_khz == 0 ||
+		dc->debug.force_clock_mode & 0x1) {
+			force_reset = true;
+
+		dcn2_read_clocks_from_hw_dentist(clk_mgr_base);
+	}
+
+	display_count = clk_mgr_helper_get_active_display_cnt(dc, context);
+
+	if (display_count == 0)
+		enter_display_off = true;
+
+	if (should_set_clock(safe_to_lower, new_clocks->phyclk_khz, clk_mgr_base->clks.phyclk_khz))
+		clk_mgr_base->clks.phyclk_khz = new_clocks->phyclk_khz;
+
+	if (dc->debug.force_min_dcfclk_mhz > 0)
+		new_clocks->dcfclk_khz = (new_clocks->dcfclk_khz > (dc->debug.force_min_dcfclk_mhz * 1000)) ?
+		new_clocks->dcfclk_khz : (dc->debug.force_min_dcfclk_mhz * 1000);
+
+	if (should_set_clock(safe_to_lower, new_clocks->dcfclk_khz, clk_mgr_base->clks.dcfclk_khz))
+		clk_mgr_base->clks.dcfclk_khz = new_clocks->dcfclk_khz;
+
+	if (should_set_clock(safe_to_lower,
+		new_clocks->dcfclk_deep_sleep_khz, clk_mgr_base->clks.dcfclk_deep_sleep_khz))
+		clk_mgr_base->clks.dcfclk_deep_sleep_khz = new_clocks->dcfclk_deep_sleep_khz;
+
+	if (should_set_clock(safe_to_lower, new_clocks->socclk_khz, clk_mgr_base->clks.socclk_khz))
+		clk_mgr_base->clks.socclk_khz = new_clocks->socclk_khz;
+
+	total_plane_count = clk_mgr_helper_get_active_plane_cnt(dc, context);
+	p_state_change_support = new_clocks->p_state_change_support || (total_plane_count == 0);
+	if (should_update_pstate_support(safe_to_lower, p_state_change_support, clk_mgr_base->clks.p_state_change_support)) {
+		clk_mgr_base->clks.prev_p_state_change_support = clk_mgr_base->clks.p_state_change_support;
+		clk_mgr_base->clks.p_state_change_support = p_state_change_support;
+	}
+
+	if (should_set_clock(safe_to_lower, new_clocks->dramclk_khz, clk_mgr_base->clks.dramclk_khz))
+		clk_mgr_base->clks.dramclk_khz = new_clocks->dramclk_khz;
+
+	if (should_set_clock(safe_to_lower, new_clocks->dppclk_khz, clk_mgr->base.clks.dppclk_khz)) {
+		if (clk_mgr->base.clks.dppclk_khz > new_clocks->dppclk_khz)
+			dpp_clock_lowered = true;
+		clk_mgr->base.clks.dppclk_khz = new_clocks->dppclk_khz;
+
+		update_dppclk = true;
+	}
+
+	if (should_set_clock(safe_to_lower, new_clocks->dispclk_khz, clk_mgr_base->clks.dispclk_khz)) {
+		clk_mgr_base->clks.dispclk_khz = new_clocks->dispclk_khz;
+
+		update_dispclk = true;
+	}
+
+	if (dc->config.forced_clocks == false || (force_reset && safe_to_lower)) {
+		if (dpp_clock_lowered) {
+			dcn20_update_clocks_update_dpp_dto(clk_mgr, context, safe_to_lower);
+			dcn20_update_clocks_update_dentist(clk_mgr, context);
+		} else {
+			if (update_dppclk || update_dispclk)
+				dcn20_update_clocks_update_dentist(clk_mgr, context);
+			if (new_clocks->dppclk_khz >= dc->current_state->bw_ctx.bw.dcn.clk.dppclk_khz)
+				dcn20_update_clocks_update_dpp_dto(clk_mgr, context, safe_to_lower);
+		}
+	}
+}
+
+struct clk_mgr_funcs dcn201_funcs = {
+	.get_dp_ref_clk_frequency = dce12_get_dp_ref_freq_khz,
+	.update_clocks = dcn201_update_clocks,
+	.init_clocks = dcn201_init_clocks,
+	.get_clock = dcn2_get_clock,
+};
+
+void dcn201_clk_mgr_construct(struct dc_context *ctx,
+		struct clk_mgr_internal *clk_mgr,
+		struct pp_smu_funcs *pp_smu,
+		struct dccg *dccg)
+{
+	struct dc_debug_options *debug = &ctx->dc->debug;
+	struct dc_bios *bp = ctx->dc_bios;
+	clk_mgr->base.ctx = ctx;
+	clk_mgr->base.funcs = &dcn201_funcs;
+	clk_mgr->regs = &clk_mgr_regs;
+	clk_mgr->clk_mgr_shift = &clk_mgr_shift;
+	clk_mgr->clk_mgr_mask = &clk_mgr_mask;
+
+	clk_mgr->dccg = dccg;
+
+	clk_mgr->dfs_bypass_disp_clk = 0;
+
+	clk_mgr->dprefclk_ss_percentage = 0;
+	clk_mgr->dprefclk_ss_divider = 1000;
+	clk_mgr->ss_on_dprefclk = false;
+
+	if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment)) {
+		dcn201_funcs.update_clocks = dcn2_update_clocks_fpga;
+		clk_mgr->base.dprefclk_khz = 600000;
+		clk_mgr->base.dentist_vco_freq_khz = 3000000;
+	} else {
+		clk_mgr->base.dprefclk_khz = REG_READ(CLK4_CLK2_CURRENT_CNT);
+		clk_mgr->base.dprefclk_khz *= 100;
+
+		if (clk_mgr->base.dprefclk_khz == 0)
+			clk_mgr->base.dprefclk_khz = 600000;
+
+		REG_GET(CLK4_CLK_PLL_REQ, FbMult_int, &clk_mgr->base.dentist_vco_freq_khz);
+		clk_mgr->base.dentist_vco_freq_khz *= 100000;
+
+		if (clk_mgr->base.dentist_vco_freq_khz == 0)
+			clk_mgr->base.dentist_vco_freq_khz = 3000000;
+	}
+
+	if (!debug->disable_dfs_bypass && bp->integrated_info)
+		if (bp->integrated_info->gpu_cap_info & DFS_BYPASS_ENABLE)
+			clk_mgr->dfs_bypass_enabled = true;
+
+	dce_clock_read_ss_info(clk_mgr);
+}