1 /*
2  * Copyright 2015 Advanced Micro Devices, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: AMD
23  *
24  */
25 
26 #include "dm_services.h"
27 #include "dc.h"
28 #include "core_types.h"
29 #include "dce120_hw_sequencer.h"
30 #include "dce/dce_hwseq.h"
31 
32 #include "dce110/dce110_hw_sequencer.h"
33 
34 #include "dce/dce_12_0_offset.h"
35 #include "dce/dce_12_0_sh_mask.h"
36 #include "soc15_hw_ip.h"
37 #include "vega10_ip_offset.h"
38 #include "reg_helper.h"
39 
40 #define CTX \
41 	hws->ctx
42 #define REG(reg)\
43 	hws->regs->reg
44 
45 #undef FN
46 #define FN(reg_name, field_name) \
47 	hws->shifts->field_name, hws->masks->field_name
48 
49 struct dce120_hw_seq_reg_offsets {
50 	uint32_t crtc;
51 };
52 
53 #if 0
54 static const struct dce120_hw_seq_reg_offsets reg_offsets[] = {
55 {
56 	.crtc = (mmCRTC0_CRTC_GSL_CONTROL - mmCRTC0_CRTC_GSL_CONTROL),
57 },
58 {
59 	.crtc = (mmCRTC1_CRTC_GSL_CONTROL - mmCRTC0_CRTC_GSL_CONTROL),
60 },
61 {
62 	.crtc = (mmCRTC2_CRTC_GSL_CONTROL - mmCRTC0_CRTC_GSL_CONTROL),
63 },
64 {
65 	.crtc = (mmCRTC3_CRTC_GSL_CONTROL - mmCRTC0_CRTC_GSL_CONTROL),
66 },
67 {
68 	.crtc = (mmCRTC4_CRTC_GSL_CONTROL - mmCRTC0_CRTC_GSL_CONTROL),
69 },
70 {
71 	.crtc = (mmCRTC5_CRTC_GSL_CONTROL - mmCRTC0_CRTC_GSL_CONTROL),
72 }
73 };
74 #endif
75 
76 #define HW_REG_CRTC(reg, id)\
77 	(reg + reg_offsets[id].crtc)
78 
79 #define CNTL_ID(controller_id)\
80 	controller_id
81 /*******************************************************************************
82  * Private definitions
83  ******************************************************************************/
84 #if 0
85 static void dce120_init_pte(struct dc_context *ctx, uint8_t controller_id)
86 {
87 	uint32_t addr;
88 	uint32_t value = 0;
89 	uint32_t chunk_int = 0;
90 	uint32_t chunk_mul = 0;
91 /*
92 	addr = mmDCP0_DVMM_PTE_CONTROL + controller_id *
93 			(mmDCP1_DVMM_PTE_CONTROL- mmDCP0_DVMM_PTE_CONTROL);
94 
95 	value = dm_read_reg(ctx, addr);
96 
97 	set_reg_field_value(
98 			value, 0, DCP, controller_id,
99 			DVMM_PTE_CONTROL,
100 			DVMM_USE_SINGLE_PTE);
101 
102 	set_reg_field_value_soc15(
103 			value, 1, DCP, controller_id,
104 			DVMM_PTE_CONTROL,
105 			DVMM_PTE_BUFFER_MODE0);
106 
107 	set_reg_field_value_soc15(
108 			value, 1, DCP, controller_id,
109 			DVMM_PTE_CONTROL,
110 			DVMM_PTE_BUFFER_MODE1);
111 
112 	dm_write_reg(ctx, addr, value);*/
113 
114 	addr = mmDVMM_PTE_REQ;
115 	value = dm_read_reg(ctx, addr);
116 
117 	chunk_int = get_reg_field_value(
118 		value,
119 		DVMM_PTE_REQ,
120 		HFLIP_PTEREQ_PER_CHUNK_INT);
121 
122 	chunk_mul = get_reg_field_value(
123 		value,
124 		DVMM_PTE_REQ,
125 		HFLIP_PTEREQ_PER_CHUNK_MULTIPLIER);
126 
127 	if (chunk_int != 0x4 || chunk_mul != 0x4) {
128 
129 		set_reg_field_value(
130 			value,
131 			255,
132 			DVMM_PTE_REQ,
133 			MAX_PTEREQ_TO_ISSUE);
134 
135 		set_reg_field_value(
136 			value,
137 			4,
138 			DVMM_PTE_REQ,
139 			HFLIP_PTEREQ_PER_CHUNK_INT);
140 
141 		set_reg_field_value(
142 			value,
143 			4,
144 			DVMM_PTE_REQ,
145 			HFLIP_PTEREQ_PER_CHUNK_MULTIPLIER);
146 
147 		dm_write_reg(ctx, addr, value);
148 	}
149 }
150 #endif
151 
152 static bool dce120_enable_display_power_gating(
153 	struct dc *dc,
154 	uint8_t controller_id,
155 	struct dc_bios *dcb,
156 	enum pipe_gating_control power_gating)
157 {
158 	/* disable for bringup */
159 #if 0
160 	enum bp_result bp_result = BP_RESULT_OK;
161 	enum bp_pipe_control_action cntl;
162 	struct dc_context *ctx = dc->ctx;
163 
164 	if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment))
165 		return true;
166 
167 	if (power_gating == PIPE_GATING_CONTROL_INIT)
168 		cntl = ASIC_PIPE_INIT;
169 	else if (power_gating == PIPE_GATING_CONTROL_ENABLE)
170 		cntl = ASIC_PIPE_ENABLE;
171 	else
172 		cntl = ASIC_PIPE_DISABLE;
173 
174 	if (power_gating != PIPE_GATING_CONTROL_INIT || controller_id == 0) {
175 
176 		bp_result = dcb->funcs->enable_disp_power_gating(
177 						dcb, controller_id + 1, cntl);
178 
179 		/* Revert MASTER_UPDATE_MODE to 0 because bios sets it 2
180 		 * by default when command table is called
181 		 */
182 		dm_write_reg(ctx,
183 			HW_REG_CRTC(mmCRTC0_CRTC_MASTER_UPDATE_MODE, controller_id),
184 			0);
185 	}
186 
187 	if (power_gating != PIPE_GATING_CONTROL_ENABLE)
188 		dce120_init_pte(ctx, controller_id);
189 
190 	if (bp_result == BP_RESULT_OK)
191 		return true;
192 	else
193 		return false;
194 #endif
195 	return false;
196 }
197 
198 static void dce120_update_dchub(
199 	struct dce_hwseq *hws,
200 	struct dchub_init_data *dh_data)
201 {
202 	/* TODO: port code from dal2 */
203 	switch (dh_data->fb_mode) {
204 	case FRAME_BUFFER_MODE_ZFB_ONLY:
205 		/*For ZFB case need to put DCHUB FB BASE and TOP upside down to indicate ZFB mode*/
206 		REG_UPDATE_2(DCHUB_FB_LOCATION,
207 				FB_TOP, 0,
208 				FB_BASE, 0x0FFFF);
209 
210 		REG_UPDATE(DCHUB_AGP_BASE,
211 				AGP_BASE, dh_data->zfb_phys_addr_base >> 22);
212 
213 		REG_UPDATE(DCHUB_AGP_BOT,
214 				AGP_BOT, dh_data->zfb_mc_base_addr >> 22);
215 
216 		REG_UPDATE(DCHUB_AGP_TOP,
217 				AGP_TOP, (dh_data->zfb_mc_base_addr + dh_data->zfb_size_in_byte - 1) >> 22);
218 		break;
219 	case FRAME_BUFFER_MODE_MIXED_ZFB_AND_LOCAL:
220 		/*Should not touch FB LOCATION (done by VBIOS on AsicInit table)*/
221 		REG_UPDATE(DCHUB_AGP_BASE,
222 				AGP_BASE, dh_data->zfb_phys_addr_base >> 22);
223 
224 		REG_UPDATE(DCHUB_AGP_BOT,
225 				AGP_BOT, dh_data->zfb_mc_base_addr >> 22);
226 
227 		REG_UPDATE(DCHUB_AGP_TOP,
228 				AGP_TOP, (dh_data->zfb_mc_base_addr + dh_data->zfb_size_in_byte - 1) >> 22);
229 		break;
230 	case FRAME_BUFFER_MODE_LOCAL_ONLY:
231 		/*Should not touch FB LOCATION (done by VBIOS on AsicInit table)*/
232 		REG_UPDATE(DCHUB_AGP_BASE,
233 				AGP_BASE, 0);
234 
235 		REG_UPDATE(DCHUB_AGP_BOT,
236 				AGP_BOT, 0x03FFFF);
237 
238 		REG_UPDATE(DCHUB_AGP_TOP,
239 				AGP_TOP, 0);
240 		break;
241 	default:
242 		break;
243 	}
244 
245 	dh_data->dchub_initialzied = true;
246 	dh_data->dchub_info_valid = false;
247 }
248 
249 void dce120_hw_sequencer_construct(struct dc *dc)
250 {
251 	/* All registers used by dce11.2 match those in dce11 in offset and
252 	 * structure
253 	 */
254 	dce110_hw_sequencer_construct(dc);
255 	dc->hwss.enable_display_power_gating = dce120_enable_display_power_gating;
256 	dc->hwss.update_dchub = dce120_update_dchub;
257 }
258 
259