1 /*
2 * Copyright 2018 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 #include "dcn21_hubp.h"
26
27 #include "dm_services.h"
28 #include "reg_helper.h"
29
30 #define REG(reg)\
31 hubp21->hubp_regs->reg
32
33 #define CTX \
34 hubp21->base.ctx
35
36 #undef FN
37 #define FN(reg_name, field_name) \
38 hubp21->hubp_shift->field_name, hubp21->hubp_mask->field_name
39
40 /*
41 * In DCN2.1, the non-double buffered version of the following 4 DLG registers are used in RTL.
42 * As a result, if S/W updates any of these registers during a mode change,
43 * the current frame before the mode change will use the new value right away
44 * and can lead to generating incorrect request deadlines and incorrect TTU/QoS behavior.
45 *
46 * REFCYC_PER_VM_GROUP_FLIP[22:0]
47 * REFCYC_PER_VM_GROUP_VBLANK[22:0]
48 * REFCYC_PER_VM_REQ_FLIP[22:0]
49 * REFCYC_PER_VM_REQ_VBLANK[22:0]
50 *
51 * REFCYC_PER_VM_*_FLIP affects the deadline of the VM requests generated
52 * when flipping to a new surface
53 *
54 * REFCYC_PER_VM_*_VBLANK affects the deadline of the VM requests generated
55 * during prefetch period of a frame. The prefetch starts at a pre-determined
56 * number of lines before the display active per frame
57 *
58 * DCN may underflow due to incorrectly programming these registers
59 * during VM stage of prefetch/iflip. First lines of display active
60 * or a sub-region of active using a new surface will be corrupted
61 * until the VM data returns at flip/mode change transitions
62 *
63 * Work around:
64 * workaround is always opt to use the more aggressive settings.
65 * On any mode switch, if the new reg values are smaller than the current values,
66 * then update the regs with the new values.
67 *
68 * Link to the ticket: http://ontrack-internal.amd.com/browse/DEDCN21-142
69 *
70 */
apply_DEDCN21_142_wa_for_hostvm_deadline(struct hubp * hubp,struct _vcs_dpi_display_dlg_regs_st * dlg_attr)71 void apply_DEDCN21_142_wa_for_hostvm_deadline(
72 struct hubp *hubp,
73 struct _vcs_dpi_display_dlg_regs_st *dlg_attr)
74 {
75 struct dcn21_hubp *hubp21 = TO_DCN21_HUBP(hubp);
76 uint32_t cur_value;
77
78 REG_GET(VBLANK_PARAMETERS_5, REFCYC_PER_VM_GROUP_VBLANK, &cur_value);
79 if (cur_value > dlg_attr->refcyc_per_vm_group_vblank)
80 REG_SET(VBLANK_PARAMETERS_5, 0,
81 REFCYC_PER_VM_GROUP_VBLANK, dlg_attr->refcyc_per_vm_group_vblank);
82
83 REG_GET(VBLANK_PARAMETERS_6,
84 REFCYC_PER_VM_REQ_VBLANK,
85 &cur_value);
86 if (cur_value > dlg_attr->refcyc_per_vm_req_vblank)
87 REG_SET(VBLANK_PARAMETERS_6, 0,
88 REFCYC_PER_VM_REQ_VBLANK, dlg_attr->refcyc_per_vm_req_vblank);
89
90 REG_GET(FLIP_PARAMETERS_3, REFCYC_PER_VM_GROUP_FLIP, &cur_value);
91 if (cur_value > dlg_attr->refcyc_per_vm_group_flip)
92 REG_SET(FLIP_PARAMETERS_3, 0,
93 REFCYC_PER_VM_GROUP_FLIP, dlg_attr->refcyc_per_vm_group_flip);
94
95 REG_GET(FLIP_PARAMETERS_4, REFCYC_PER_VM_REQ_FLIP, &cur_value);
96 if (cur_value > dlg_attr->refcyc_per_vm_req_flip)
97 REG_SET(FLIP_PARAMETERS_4, 0,
98 REFCYC_PER_VM_REQ_FLIP, dlg_attr->refcyc_per_vm_req_flip);
99
100 REG_SET(FLIP_PARAMETERS_5, 0,
101 REFCYC_PER_PTE_GROUP_FLIP_C, dlg_attr->refcyc_per_pte_group_flip_c);
102 REG_SET(FLIP_PARAMETERS_6, 0,
103 REFCYC_PER_META_CHUNK_FLIP_C, dlg_attr->refcyc_per_meta_chunk_flip_c);
104 }
105
hubp21_program_deadline(struct hubp * hubp,struct _vcs_dpi_display_dlg_regs_st * dlg_attr,struct _vcs_dpi_display_ttu_regs_st * ttu_attr)106 void hubp21_program_deadline(
107 struct hubp *hubp,
108 struct _vcs_dpi_display_dlg_regs_st *dlg_attr,
109 struct _vcs_dpi_display_ttu_regs_st *ttu_attr)
110 {
111 hubp2_program_deadline(hubp, dlg_attr, ttu_attr);
112
113 apply_DEDCN21_142_wa_for_hostvm_deadline(hubp, dlg_attr);
114 }
115
hubp21_program_requestor(struct hubp * hubp,struct _vcs_dpi_display_rq_regs_st * rq_regs)116 void hubp21_program_requestor(
117 struct hubp *hubp,
118 struct _vcs_dpi_display_rq_regs_st *rq_regs)
119 {
120 struct dcn21_hubp *hubp21 = TO_DCN21_HUBP(hubp);
121
122 REG_UPDATE(HUBPRET_CONTROL,
123 DET_BUF_PLANE1_BASE_ADDRESS, rq_regs->plane1_base_address);
124 REG_SET_4(DCN_EXPANSION_MODE, 0,
125 DRQ_EXPANSION_MODE, rq_regs->drq_expansion_mode,
126 PRQ_EXPANSION_MODE, rq_regs->prq_expansion_mode,
127 MRQ_EXPANSION_MODE, rq_regs->mrq_expansion_mode,
128 CRQ_EXPANSION_MODE, rq_regs->crq_expansion_mode);
129 REG_SET_8(DCHUBP_REQ_SIZE_CONFIG, 0,
130 CHUNK_SIZE, rq_regs->rq_regs_l.chunk_size,
131 MIN_CHUNK_SIZE, rq_regs->rq_regs_l.min_chunk_size,
132 META_CHUNK_SIZE, rq_regs->rq_regs_l.meta_chunk_size,
133 MIN_META_CHUNK_SIZE, rq_regs->rq_regs_l.min_meta_chunk_size,
134 DPTE_GROUP_SIZE, rq_regs->rq_regs_l.dpte_group_size,
135 VM_GROUP_SIZE, rq_regs->rq_regs_l.mpte_group_size,
136 SWATH_HEIGHT, rq_regs->rq_regs_l.swath_height,
137 PTE_ROW_HEIGHT_LINEAR, rq_regs->rq_regs_l.pte_row_height_linear);
138 REG_SET_7(DCHUBP_REQ_SIZE_CONFIG_C, 0,
139 CHUNK_SIZE_C, rq_regs->rq_regs_c.chunk_size,
140 MIN_CHUNK_SIZE_C, rq_regs->rq_regs_c.min_chunk_size,
141 META_CHUNK_SIZE_C, rq_regs->rq_regs_c.meta_chunk_size,
142 MIN_META_CHUNK_SIZE_C, rq_regs->rq_regs_c.min_meta_chunk_size,
143 DPTE_GROUP_SIZE_C, rq_regs->rq_regs_c.dpte_group_size,
144 SWATH_HEIGHT_C, rq_regs->rq_regs_c.swath_height,
145 PTE_ROW_HEIGHT_LINEAR_C, rq_regs->rq_regs_c.pte_row_height_linear);
146 }
147
hubp21_setup(struct hubp * hubp,struct _vcs_dpi_display_dlg_regs_st * dlg_attr,struct _vcs_dpi_display_ttu_regs_st * ttu_attr,struct _vcs_dpi_display_rq_regs_st * rq_regs,struct _vcs_dpi_display_pipe_dest_params_st * pipe_dest)148 static void hubp21_setup(
149 struct hubp *hubp,
150 struct _vcs_dpi_display_dlg_regs_st *dlg_attr,
151 struct _vcs_dpi_display_ttu_regs_st *ttu_attr,
152 struct _vcs_dpi_display_rq_regs_st *rq_regs,
153 struct _vcs_dpi_display_pipe_dest_params_st *pipe_dest)
154 {
155 /* otg is locked when this func is called. Register are double buffered.
156 * disable the requestors is not needed
157 */
158
159 hubp2_vready_at_or_After_vsync(hubp, pipe_dest);
160 hubp21_program_requestor(hubp, rq_regs);
161 hubp21_program_deadline(hubp, dlg_attr, ttu_attr);
162
163 }
164
hubp21_set_vm_system_aperture_settings(struct hubp * hubp,struct vm_system_aperture_param * apt)165 void hubp21_set_vm_system_aperture_settings(struct hubp *hubp,
166 struct vm_system_aperture_param *apt)
167 {
168 struct dcn21_hubp *hubp21 = TO_DCN21_HUBP(hubp);
169
170 PHYSICAL_ADDRESS_LOC mc_vm_apt_default;
171 PHYSICAL_ADDRESS_LOC mc_vm_apt_low;
172 PHYSICAL_ADDRESS_LOC mc_vm_apt_high;
173
174 // The format of default addr is 48:12 of the 48 bit addr
175 mc_vm_apt_default.quad_part = apt->sys_default.quad_part >> 12;
176
177 // The format of high/low are 48:18 of the 48 bit addr
178 mc_vm_apt_low.quad_part = apt->sys_low.quad_part >> 18;
179 mc_vm_apt_high.quad_part = apt->sys_high.quad_part >> 18;
180
181 REG_SET(DCN_VM_SYSTEM_APERTURE_LOW_ADDR, 0,
182 MC_VM_SYSTEM_APERTURE_LOW_ADDR, mc_vm_apt_low.quad_part);
183
184 REG_SET(DCN_VM_SYSTEM_APERTURE_HIGH_ADDR, 0,
185 MC_VM_SYSTEM_APERTURE_HIGH_ADDR, mc_vm_apt_high.quad_part);
186
187 REG_SET_2(DCN_VM_MX_L1_TLB_CNTL, 0,
188 ENABLE_L1_TLB, 1,
189 SYSTEM_ACCESS_MODE, 0x3);
190 }
191
hubp21_init(struct hubp * hubp)192 void hubp21_init(struct hubp *hubp)
193 {
194 // DEDCN21-133: Inconsistent row starting line for flip between DPTE and Meta
195 // This is a chicken bit to enable the ECO fix.
196
197 struct dcn21_hubp *hubp21 = TO_DCN21_HUBP(hubp);
198 //hubp[i].HUBPREQ_DEBUG.HUBPREQ_DEBUG[26] = 1;
199 REG_WRITE(HUBPREQ_DEBUG, 1 << 26);
200 }
201 static struct hubp_funcs dcn21_hubp_funcs = {
202 .hubp_enable_tripleBuffer = hubp2_enable_triplebuffer,
203 .hubp_is_triplebuffer_enabled = hubp2_is_triplebuffer_enabled,
204 .hubp_program_surface_flip_and_addr = hubp2_program_surface_flip_and_addr,
205 .hubp_program_surface_config = hubp2_program_surface_config,
206 .hubp_is_flip_pending = hubp1_is_flip_pending,
207 .hubp_setup = hubp21_setup,
208 .hubp_setup_interdependent = hubp2_setup_interdependent,
209 .hubp_set_vm_system_aperture_settings = hubp21_set_vm_system_aperture_settings,
210 .set_blank = hubp1_set_blank,
211 .dcc_control = hubp1_dcc_control,
212 .mem_program_viewport = min_set_viewport,
213 .set_cursor_attributes = hubp2_cursor_set_attributes,
214 .set_cursor_position = hubp1_cursor_set_position,
215 .hubp_clk_cntl = hubp1_clk_cntl,
216 .hubp_vtg_sel = hubp1_vtg_sel,
217 .dmdata_set_attributes = hubp2_dmdata_set_attributes,
218 .dmdata_load = hubp2_dmdata_load,
219 .dmdata_status_done = hubp2_dmdata_status_done,
220 .hubp_read_state = hubp1_read_state,
221 .hubp_clear_underflow = hubp1_clear_underflow,
222 .hubp_set_flip_control_surface_gsl = hubp2_set_flip_control_surface_gsl,
223 .hubp_init = hubp21_init,
224 };
225
hubp21_construct(struct dcn21_hubp * hubp21,struct dc_context * ctx,uint32_t inst,const struct dcn_hubp2_registers * hubp_regs,const struct dcn_hubp2_shift * hubp_shift,const struct dcn_hubp2_mask * hubp_mask)226 bool hubp21_construct(
227 struct dcn21_hubp *hubp21,
228 struct dc_context *ctx,
229 uint32_t inst,
230 const struct dcn_hubp2_registers *hubp_regs,
231 const struct dcn_hubp2_shift *hubp_shift,
232 const struct dcn_hubp2_mask *hubp_mask)
233 {
234 hubp21->base.funcs = &dcn21_hubp_funcs;
235 hubp21->base.ctx = ctx;
236 hubp21->hubp_regs = hubp_regs;
237 hubp21->hubp_shift = hubp_shift;
238 hubp21->hubp_mask = hubp_mask;
239 hubp21->base.inst = inst;
240 hubp21->base.opp_id = OPP_ID_INVALID;
241 hubp21->base.mpcc_id = 0xf;
242
243 return true;
244 }
245
