Bug Summary

File:dev/pci/drm/amd/display/dc/dcn10/dcn10_hw_sequencer_debug.c
Warning:line 616, column 3
Value stored to 'remaining_buf_size' is never read

Annotated Source Code

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clang -cc1 -cc1 -triple amd64-unknown-openbsd7.0 -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name dcn10_hw_sequencer_debug.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model static -mframe-pointer=all -relaxed-aliasing -fno-rounding-math -mconstructor-aliases -ffreestanding -mcmodel=kernel -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -target-feature -sse2 -target-feature -sse -target-feature -3dnow -target-feature -mmx -target-feature +save-args -disable-red-zone -no-implicit-float -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/sys/arch/amd64/compile/GENERIC.MP/obj -nostdsysteminc -nobuiltininc -resource-dir /usr/local/lib/clang/13.0.0 -I /usr/src/sys -I /usr/src/sys/arch/amd64/compile/GENERIC.MP/obj -I /usr/src/sys/arch -I /usr/src/sys/dev/pci/drm/include -I /usr/src/sys/dev/pci/drm/include/uapi -I /usr/src/sys/dev/pci/drm/amd/include/asic_reg -I /usr/src/sys/dev/pci/drm/amd/include -I /usr/src/sys/dev/pci/drm/amd/amdgpu -I /usr/src/sys/dev/pci/drm/amd/display -I /usr/src/sys/dev/pci/drm/amd/display/include -I /usr/src/sys/dev/pci/drm/amd/display/dc -I /usr/src/sys/dev/pci/drm/amd/display/amdgpu_dm -I /usr/src/sys/dev/pci/drm/amd/pm/inc -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/smu11 -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/smu12 -I /usr/src/sys/dev/pci/drm/amd/pm/powerplay -I /usr/src/sys/dev/pci/drm/amd/pm/powerplay/hwmgr -I /usr/src/sys/dev/pci/drm/amd/pm/powerplay/smumgr -I /usr/src/sys/dev/pci/drm/amd/display/dc/inc -I /usr/src/sys/dev/pci/drm/amd/display/dc/inc/hw -I /usr/src/sys/dev/pci/drm/amd/display/dc/clk_mgr -I /usr/src/sys/dev/pci/drm/amd/display/modules/inc -I /usr/src/sys/dev/pci/drm/amd/display/modules/hdcp -I /usr/src/sys/dev/pci/drm/amd/display/dmub/inc -I /usr/src/sys/dev/pci/drm/i915 -D DDB -D DIAGNOSTIC -D KTRACE -D ACCOUNTING -D KMEMSTATS -D PTRACE -D POOL_DEBUG -D CRYPTO -D SYSVMSG -D SYSVSEM -D SYSVSHM -D UVM_SWAP_ENCRYPT -D FFS -D FFS2 -D FFS_SOFTUPDATES -D UFS_DIRHASH -D QUOTA -D EXT2FS -D MFS -D NFSCLIENT -D NFSSERVER -D CD9660 -D UDF -D MSDOSFS -D FIFO -D FUSE -D SOCKET_SPLICE -D TCP_ECN -D TCP_SIGNATURE -D INET6 -D IPSEC -D PPP_BSDCOMP -D PPP_DEFLATE -D PIPEX -D MROUTING -D MPLS -D BOOT_CONFIG -D USER_PCICONF -D APERTURE -D MTRR -D NTFS -D HIBERNATE -D PCIVERBOSE -D USBVERBOSE -D WSDISPLAY_COMPAT_USL -D WSDISPLAY_COMPAT_RAWKBD -D WSDISPLAY_DEFAULTSCREENS=6 -D X86EMU -D ONEWIREVERBOSE -D MULTIPROCESSOR -D MAXUSERS=80 -D _KERNEL -D CONFIG_DRM_AMD_DC_DCN3_0 -O2 -Wno-pointer-sign -Wno-address-of-packed-member -Wno-constant-conversion -Wno-unused-but-set-variable -Wno-gnu-folding-constant -fdebug-compilation-dir=/usr/src/sys/arch/amd64/compile/GENERIC.MP/obj -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -o /usr/obj/sys/arch/amd64/compile/GENERIC.MP/scan-build/2022-01-12-131800-47421-1 -x c /usr/src/sys/dev/pci/drm/amd/display/dc/dcn10/dcn10_hw_sequencer_debug.c
1/*
2 * Copyright 2016 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 "core_types.h"
28#include "resource.h"
29#include "custom_float.h"
30#include "dcn10_hw_sequencer.h"
31#include "dce110/dce110_hw_sequencer.h"
32#include "dce/dce_hwseq.h"
33#include "abm.h"
34#include "dmcu.h"
35#include "dcn10_optc.h"
36#include "dcn10/dcn10_dpp.h"
37#include "dcn10/dcn10_mpc.h"
38#include "timing_generator.h"
39#include "opp.h"
40#include "ipp.h"
41#include "mpc.h"
42#include "reg_helper.h"
43#include "dcn10_hubp.h"
44#include "dcn10_hubbub.h"
45#include "dcn10_cm_common.h"
46#include "clk_mgr.h"
47
48unsigned int snprintf_count(char *pBuf, unsigned int bufSize, char *fmt, ...)
49{
50 unsigned int ret_vsnprintf;
51 unsigned int chars_printed;
52
53 va_list args;
54 va_start(args, fmt)__builtin_va_start((args), fmt);
55
56 ret_vsnprintf = vsnprintf(pBuf, bufSize, fmt, args);
57
58 va_end(args)__builtin_va_end((args));
59
60 if (ret_vsnprintf > 0) {
61 if (ret_vsnprintf < bufSize)
62 chars_printed = ret_vsnprintf;
63 else
64 chars_printed = bufSize - 1;
65 } else
66 chars_printed = 0;
67
68 return chars_printed;
69}
70
71static unsigned int dcn10_get_hubbub_state(struct dc *dc, char *pBuf, unsigned int bufSize)
72{
73 struct dc_context *dc_ctx = dc->ctx;
74 struct dcn_hubbub_wm wm;
75 int i;
76
77 unsigned int chars_printed = 0;
78 unsigned int remaining_buffer = bufSize;
79
80 const uint32_t ref_clk_mhz = dc_ctx->dc->res_pool->ref_clocks.dchub_ref_clock_inKhz / 1000;
81 static const unsigned int frac = 1000;
82
83 memset(&wm, 0, sizeof(struct dcn_hubbub_wm))__builtin_memset((&wm), (0), (sizeof(struct dcn_hubbub_wm
)));
84 dc->res_pool->hubbub->funcs->wm_read_state(dc->res_pool->hubbub, &wm);
85
86 chars_printed = snprintf_count(pBuf, remaining_buffer, "wm_set_index,data_urgent,pte_meta_urgent,sr_enter,sr_exit,dram_clk_chanage\n");
87 remaining_buffer -= chars_printed;
88 pBuf += chars_printed;
89
90 for (i = 0; i < 4; i++) {
91 struct dcn_hubbub_wm_set *s;
92
93 s = &wm.sets[i];
94
95 chars_printed = snprintf_count(pBuf, remaining_buffer, "%x,%d.%03d,%d.%03d,%d.%03d,%d.%03d,%d.%03d\n",
96 s->wm_set,
97 (s->data_urgent * frac) / ref_clk_mhz / frac, (s->data_urgent * frac) / ref_clk_mhz % frac,
98 (s->pte_meta_urgent * frac) / ref_clk_mhz / frac, (s->pte_meta_urgent * frac) / ref_clk_mhz % frac,
99 (s->sr_enter * frac) / ref_clk_mhz / frac, (s->sr_enter * frac) / ref_clk_mhz % frac,
100 (s->sr_exit * frac) / ref_clk_mhz / frac, (s->sr_exit * frac) / ref_clk_mhz % frac,
101 (s->dram_clk_chanage * frac) / ref_clk_mhz / frac, (s->dram_clk_chanage * frac) / ref_clk_mhz % frac);
102 remaining_buffer -= chars_printed;
103 pBuf += chars_printed;
104 }
105
106 return bufSize - remaining_buffer;
107}
108
109static unsigned int dcn10_get_hubp_states(struct dc *dc, char *pBuf, unsigned int bufSize, bool_Bool invarOnly)
110{
111 struct dc_context *dc_ctx = dc->ctx;
112 struct resource_pool *pool = dc->res_pool;
113 int i;
114
115 unsigned int chars_printed = 0;
116 unsigned int remaining_buffer = bufSize;
117
118 const uint32_t ref_clk_mhz = dc_ctx->dc->res_pool->ref_clocks.dchub_ref_clock_inKhz / 1000;
119 static const unsigned int frac = 1000;
120
121 if (invarOnly)
122 chars_printed = snprintf_count(pBuf, remaining_buffer, "instance,format,addr_hi,width,height,rotation,mirror,sw_mode,dcc_en,blank_en,ttu_dis,underflow,"
123 "min_ttu_vblank,qos_low_wm,qos_high_wm"
124 "\n");
125 else
126 chars_printed = snprintf_count(pBuf, remaining_buffer, "instance,format,addr_hi,addr_lo,width,height,rotation,mirror,sw_mode,dcc_en,blank_en,ttu_dis,underflow,"
127 "min_ttu_vblank,qos_low_wm,qos_high_wm"
128 "\n");
129
130 remaining_buffer -= chars_printed;
131 pBuf += chars_printed;
132
133 for (i = 0; i < pool->pipe_count; i++) {
134 struct hubp *hubp = pool->hubps[i];
135 struct dcn_hubp_state *s = &(TO_DCN10_HUBP(hubp)({ const __typeof( ((struct dcn10_hubp *)0)->base ) *__mptr
= (hubp); (struct dcn10_hubp *)( (char *)__mptr - __builtin_offsetof
(struct dcn10_hubp, base) );})->state);
136
137 hubp->funcs->hubp_read_state(hubp);
138
139 if (!s->blank_en) {
140 if (invarOnly)
141 chars_printed = snprintf_count(pBuf, remaining_buffer, "%x,%x,%x,%d,%d,%x,%x,%x,%x,%x,%x,%x,"
142 "%d.%03d,%d.%03d,%d.%03d"
143 "\n",
144 hubp->inst,
145 s->pixel_format,
146 s->inuse_addr_hi,
147 s->viewport_width,
148 s->viewport_height,
149 s->rotation_angle,
150 s->h_mirror_en,
151 s->sw_mode,
152 s->dcc_en,
153 s->blank_en,
154 s->ttu_disable,
155 s->underflow_status,
156 (s->min_ttu_vblank * frac) / ref_clk_mhz / frac, (s->min_ttu_vblank * frac) / ref_clk_mhz % frac,
157 (s->qos_level_low_wm * frac) / ref_clk_mhz / frac, (s->qos_level_low_wm * frac) / ref_clk_mhz % frac,
158 (s->qos_level_high_wm * frac) / ref_clk_mhz / frac, (s->qos_level_high_wm * frac) / ref_clk_mhz % frac);
159 else
160 chars_printed = snprintf_count(pBuf, remaining_buffer, "%x,%x,%x,%x,%d,%d,%x,%x,%x,%x,%x,%x,%x,"
161 "%d.%03d,%d.%03d,%d.%03d"
162 "\n",
163 hubp->inst,
164 s->pixel_format,
165 s->inuse_addr_hi,
166 s->inuse_addr_lo,
167 s->viewport_width,
168 s->viewport_height,
169 s->rotation_angle,
170 s->h_mirror_en,
171 s->sw_mode,
172 s->dcc_en,
173 s->blank_en,
174 s->ttu_disable,
175 s->underflow_status,
176 (s->min_ttu_vblank * frac) / ref_clk_mhz / frac, (s->min_ttu_vblank * frac) / ref_clk_mhz % frac,
177 (s->qos_level_low_wm * frac) / ref_clk_mhz / frac, (s->qos_level_low_wm * frac) / ref_clk_mhz % frac,
178 (s->qos_level_high_wm * frac) / ref_clk_mhz / frac, (s->qos_level_high_wm * frac) / ref_clk_mhz % frac);
179
180 remaining_buffer -= chars_printed;
181 pBuf += chars_printed;
182 }
183 }
184
185 return bufSize - remaining_buffer;
186}
187
188static unsigned int dcn10_get_rq_states(struct dc *dc, char *pBuf, unsigned int bufSize)
189{
190 struct resource_pool *pool = dc->res_pool;
191 int i;
192
193 unsigned int chars_printed = 0;
194 unsigned int remaining_buffer = bufSize;
195
196 chars_printed = snprintf_count(pBuf, remaining_buffer, "instance,drq_exp_m,prq_exp_m,mrq_exp_m,crq_exp_m,plane1_ba,"
197 "luma_chunk_s,luma_min_chu_s,luma_meta_ch_s,luma_min_m_c_s,luma_dpte_gr_s,luma_mpte_gr_s,luma_swath_hei,luma_pte_row_h,"
198 "chroma_chunk_s,chroma_min_chu_s,chroma_meta_ch_s,chroma_min_m_c_s,chroma_dpte_gr_s,chroma_mpte_gr_s,chroma_swath_hei,chroma_pte_row_h"
199 "\n");
200 remaining_buffer -= chars_printed;
201 pBuf += chars_printed;
202
203 for (i = 0; i < pool->pipe_count; i++) {
204 struct dcn_hubp_state *s = &(TO_DCN10_HUBP(pool->hubps[i])({ const __typeof( ((struct dcn10_hubp *)0)->base ) *__mptr
= (pool->hubps[i]); (struct dcn10_hubp *)( (char *)__mptr
- __builtin_offsetof(struct dcn10_hubp, base) );})->state);
205 struct _vcs_dpi_display_rq_regs_st *rq_regs = &s->rq_regs;
206
207 if (!s->blank_en) {
208 chars_printed = snprintf_count(pBuf, remaining_buffer, "%x,%x,%x,%x,%x,%x,"
209 "%x,%x,%x,%x,%x,%x,%x,%x,"
210 "%x,%x,%x,%x,%x,%x,%x,%x"
211 "\n",
212 pool->hubps[i]->inst, rq_regs->drq_expansion_mode, rq_regs->prq_expansion_mode, rq_regs->mrq_expansion_mode,
213 rq_regs->crq_expansion_mode, rq_regs->plane1_base_address, rq_regs->rq_regs_l.chunk_size,
214 rq_regs->rq_regs_l.min_chunk_size, rq_regs->rq_regs_l.meta_chunk_size,
215 rq_regs->rq_regs_l.min_meta_chunk_size, rq_regs->rq_regs_l.dpte_group_size,
216 rq_regs->rq_regs_l.mpte_group_size, rq_regs->rq_regs_l.swath_height,
217 rq_regs->rq_regs_l.pte_row_height_linear, rq_regs->rq_regs_c.chunk_size, rq_regs->rq_regs_c.min_chunk_size,
218 rq_regs->rq_regs_c.meta_chunk_size, rq_regs->rq_regs_c.min_meta_chunk_size,
219 rq_regs->rq_regs_c.dpte_group_size, rq_regs->rq_regs_c.mpte_group_size,
220 rq_regs->rq_regs_c.swath_height, rq_regs->rq_regs_c.pte_row_height_linear);
221
222 remaining_buffer -= chars_printed;
223 pBuf += chars_printed;
224 }
225 }
226
227 return bufSize - remaining_buffer;
228}
229
230static unsigned int dcn10_get_dlg_states(struct dc *dc, char *pBuf, unsigned int bufSize)
231{
232 struct resource_pool *pool = dc->res_pool;
233 int i;
234
235 unsigned int chars_printed = 0;
236 unsigned int remaining_buffer = bufSize;
237
238 chars_printed = snprintf_count(pBuf, remaining_buffer, "instance,rc_hbe,dlg_vbe,min_d_y_n,rc_per_ht,rc_x_a_s,"
239 "dst_y_a_s,dst_y_pf,dst_y_vvb,dst_y_rvb,dst_y_vfl,dst_y_rfl,rf_pix_fq,"
240 "vratio_pf,vrat_pf_c,rc_pg_vbl,rc_pg_vbc,rc_mc_vbl,rc_mc_vbc,rc_pg_fll,"
241 "rc_pg_flc,rc_mc_fll,rc_mc_flc,pr_nom_l,pr_nom_c,rc_pg_nl,rc_pg_nc,"
242 "mr_nom_l,mr_nom_c,rc_mc_nl,rc_mc_nc,rc_ld_pl,rc_ld_pc,rc_ld_l,"
243 "rc_ld_c,cha_cur0,ofst_cur1,cha_cur1,vr_af_vc0,ddrq_limt,x_rt_dlay,x_rp_dlay,x_rr_sfl"
244 "\n");
245 remaining_buffer -= chars_printed;
246 pBuf += chars_printed;
247
248 for (i = 0; i < pool->pipe_count; i++) {
249 struct dcn_hubp_state *s = &(TO_DCN10_HUBP(pool->hubps[i])({ const __typeof( ((struct dcn10_hubp *)0)->base ) *__mptr
= (pool->hubps[i]); (struct dcn10_hubp *)( (char *)__mptr
- __builtin_offsetof(struct dcn10_hubp, base) );})->state);
250 struct _vcs_dpi_display_dlg_regs_st *dlg_regs = &s->dlg_attr;
251
252 if (!s->blank_en) {
253 chars_printed = snprintf_count(pBuf, remaining_buffer, "%x,%x,%x,%x,%x,"
254 "%x,%x,%x,%x,%x,%x,%x,"
255 "%x,%x,%x,%x,%x,%x,%x,"
256 "%x,%x,%x,%x,%x,%x,%x,"
257 "%x,%x,%x,%x,%x,%x,%x,"
258 "%x,%x,%x,%x,%x,%x,%x,%x,%x,%x"
259 "\n",
260 pool->hubps[i]->inst, dlg_regs->refcyc_h_blank_end, dlg_regs->dlg_vblank_end, dlg_regs->min_dst_y_next_start,
261 dlg_regs->refcyc_per_htotal, dlg_regs->refcyc_x_after_scaler, dlg_regs->dst_y_after_scaler,
262 dlg_regs->dst_y_prefetch, dlg_regs->dst_y_per_vm_vblank, dlg_regs->dst_y_per_row_vblank,
263 dlg_regs->dst_y_per_vm_flip, dlg_regs->dst_y_per_row_flip, dlg_regs->ref_freq_to_pix_freq,
264 dlg_regs->vratio_prefetch, dlg_regs->vratio_prefetch_c, dlg_regs->refcyc_per_pte_group_vblank_l,
265 dlg_regs->refcyc_per_pte_group_vblank_c, dlg_regs->refcyc_per_meta_chunk_vblank_l,
266 dlg_regs->refcyc_per_meta_chunk_vblank_c, dlg_regs->refcyc_per_pte_group_flip_l,
267 dlg_regs->refcyc_per_pte_group_flip_c, dlg_regs->refcyc_per_meta_chunk_flip_l,
268 dlg_regs->refcyc_per_meta_chunk_flip_c, dlg_regs->dst_y_per_pte_row_nom_l,
269 dlg_regs->dst_y_per_pte_row_nom_c, dlg_regs->refcyc_per_pte_group_nom_l,
270 dlg_regs->refcyc_per_pte_group_nom_c, dlg_regs->dst_y_per_meta_row_nom_l,
271 dlg_regs->dst_y_per_meta_row_nom_c, dlg_regs->refcyc_per_meta_chunk_nom_l,
272 dlg_regs->refcyc_per_meta_chunk_nom_c, dlg_regs->refcyc_per_line_delivery_pre_l,
273 dlg_regs->refcyc_per_line_delivery_pre_c, dlg_regs->refcyc_per_line_delivery_l,
274 dlg_regs->refcyc_per_line_delivery_c, dlg_regs->chunk_hdl_adjust_cur0, dlg_regs->dst_y_offset_cur1,
275 dlg_regs->chunk_hdl_adjust_cur1, dlg_regs->vready_after_vcount0, dlg_regs->dst_y_delta_drq_limit,
276 dlg_regs->xfc_reg_transfer_delay, dlg_regs->xfc_reg_precharge_delay,
277 dlg_regs->xfc_reg_remote_surface_flip_latency);
278
279 remaining_buffer -= chars_printed;
280 pBuf += chars_printed;
281 }
282 }
283
284 return bufSize - remaining_buffer;
285}
286
287static unsigned int dcn10_get_ttu_states(struct dc *dc, char *pBuf, unsigned int bufSize)
288{
289 struct resource_pool *pool = dc->res_pool;
290 int i;
291
292 unsigned int chars_printed = 0;
293 unsigned int remaining_buffer = bufSize;
294
295 chars_printed = snprintf_count(pBuf, remaining_buffer, "instance,qos_ll_wm,qos_lh_wm,mn_ttu_vb,qos_l_flp,rc_rd_p_l,rc_rd_l,rc_rd_p_c,"
296 "rc_rd_c,rc_rd_c0,rc_rd_pc0,rc_rd_c1,rc_rd_pc1,qos_lf_l,qos_rds_l,"
297 "qos_lf_c,qos_rds_c,qos_lf_c0,qos_rds_c0,qos_lf_c1,qos_rds_c1"
298 "\n");
299 remaining_buffer -= chars_printed;
300 pBuf += chars_printed;
301
302 for (i = 0; i < pool->pipe_count; i++) {
303 struct dcn_hubp_state *s = &(TO_DCN10_HUBP(pool->hubps[i])({ const __typeof( ((struct dcn10_hubp *)0)->base ) *__mptr
= (pool->hubps[i]); (struct dcn10_hubp *)( (char *)__mptr
- __builtin_offsetof(struct dcn10_hubp, base) );})->state);
304 struct _vcs_dpi_display_ttu_regs_st *ttu_regs = &s->ttu_attr;
305
306 if (!s->blank_en) {
307 chars_printed = snprintf_count(pBuf, remaining_buffer, "%x,%x,%x,%x,%x,%x,%x,%x,"
308 "%x,%x,%x,%x,%x,%x,%x,"
309 "%x,%x,%x,%x,%x,%x"
310 "\n",
311 pool->hubps[i]->inst, ttu_regs->qos_level_low_wm, ttu_regs->qos_level_high_wm, ttu_regs->min_ttu_vblank,
312 ttu_regs->qos_level_flip, ttu_regs->refcyc_per_req_delivery_pre_l, ttu_regs->refcyc_per_req_delivery_l,
313 ttu_regs->refcyc_per_req_delivery_pre_c, ttu_regs->refcyc_per_req_delivery_c, ttu_regs->refcyc_per_req_delivery_cur0,
314 ttu_regs->refcyc_per_req_delivery_pre_cur0, ttu_regs->refcyc_per_req_delivery_cur1,
315 ttu_regs->refcyc_per_req_delivery_pre_cur1, ttu_regs->qos_level_fixed_l, ttu_regs->qos_ramp_disable_l,
316 ttu_regs->qos_level_fixed_c, ttu_regs->qos_ramp_disable_c, ttu_regs->qos_level_fixed_cur0,
317 ttu_regs->qos_ramp_disable_cur0, ttu_regs->qos_level_fixed_cur1, ttu_regs->qos_ramp_disable_cur1);
318
319 remaining_buffer -= chars_printed;
320 pBuf += chars_printed;
321 }
322 }
323
324 return bufSize - remaining_buffer;
325}
326
327static unsigned int dcn10_get_cm_states(struct dc *dc, char *pBuf, unsigned int bufSize)
328{
329 struct resource_pool *pool = dc->res_pool;
330 int i;
331
332 unsigned int chars_printed = 0;
333 unsigned int remaining_buffer = bufSize;
334
335 chars_printed = snprintf_count(pBuf, remaining_buffer, "instance,igam_format,igam_mode,dgam_mode,rgam_mode,gamut_mode,"
336 "c11_c12,c13_c14,c21_c22,c23_c24,c31_c32,c33_c34"
337 "\n");
338 remaining_buffer -= chars_printed;
339 pBuf += chars_printed;
340
341 for (i = 0; i < pool->pipe_count; i++) {
342 struct dpp *dpp = pool->dpps[i];
343 struct dcn_dpp_state s = {0};
344
345 dpp->funcs->dpp_read_state(dpp, &s);
346
347 if (s.is_enabled) {
348 chars_printed = snprintf_count(pBuf, remaining_buffer, "%x,%x,"
349 "%s,%s,%s,"
350 "%x,%08x,%08x,%08x,%08x,%08x,%08x"
351 "\n",
352 dpp->inst, s.igam_input_format,
353 (s.igam_lut_mode == 0) ? "BypassFixed" :
354 ((s.igam_lut_mode == 1) ? "BypassFloat" :
355 ((s.igam_lut_mode == 2) ? "RAM" :
356 ((s.igam_lut_mode == 3) ? "RAM" :
357 "Unknown"))),
358 (s.dgam_lut_mode == 0) ? "Bypass" :
359 ((s.dgam_lut_mode == 1) ? "sRGB" :
360 ((s.dgam_lut_mode == 2) ? "Ycc" :
361 ((s.dgam_lut_mode == 3) ? "RAM" :
362 ((s.dgam_lut_mode == 4) ? "RAM" :
363 "Unknown")))),
364 (s.rgam_lut_mode == 0) ? "Bypass" :
365 ((s.rgam_lut_mode == 1) ? "sRGB" :
366 ((s.rgam_lut_mode == 2) ? "Ycc" :
367 ((s.rgam_lut_mode == 3) ? "RAM" :
368 ((s.rgam_lut_mode == 4) ? "RAM" :
369 "Unknown")))),
370 s.gamut_remap_mode, s.gamut_remap_c11_c12,
371 s.gamut_remap_c13_c14, s.gamut_remap_c21_c22, s.gamut_remap_c23_c24,
372 s.gamut_remap_c31_c32, s.gamut_remap_c33_c34);
373
374 remaining_buffer -= chars_printed;
375 pBuf += chars_printed;
376 }
377 }
378
379 return bufSize - remaining_buffer;
380}
381
382static unsigned int dcn10_get_mpcc_states(struct dc *dc, char *pBuf, unsigned int bufSize)
383{
384 struct resource_pool *pool = dc->res_pool;
385 int i;
386
387 unsigned int chars_printed = 0;
388 unsigned int remaining_buffer = bufSize;
389
390 chars_printed = snprintf_count(pBuf, remaining_buffer, "instance,opp,dpp,mpccbot,mode,alpha_mode,premult,overlap_only,idle\n");
391 remaining_buffer -= chars_printed;
392 pBuf += chars_printed;
393
394 for (i = 0; i < pool->pipe_count; i++) {
395 struct mpcc_state s = {0};
396
397 pool->mpc->funcs->read_mpcc_state(pool->mpc, i, &s);
398
399 if (s.opp_id != 0xf) {
400 chars_printed = snprintf_count(pBuf, remaining_buffer, "%x,%x,%x,%x,%x,%x,%x,%x,%x\n",
401 i, s.opp_id, s.dpp_id, s.bot_mpcc_id,
402 s.mode, s.alpha_mode, s.pre_multiplied_alpha, s.overlap_only,
403 s.idle);
404
405 remaining_buffer -= chars_printed;
406 pBuf += chars_printed;
407 }
408 }
409
410 return bufSize - remaining_buffer;
411}
412
413static unsigned int dcn10_get_otg_states(struct dc *dc, char *pBuf, unsigned int bufSize)
414{
415 struct resource_pool *pool = dc->res_pool;
416 int i;
417
418 unsigned int chars_printed = 0;
419 unsigned int remaining_buffer = bufSize;
420
421 chars_printed = snprintf_count(pBuf, remaining_buffer, "instance,v_bs,v_be,v_ss,v_se,vpol,vmax,vmin,vmax_sel,vmin_sel,"
422 "h_bs,h_be,h_ss,h_se,hpol,htot,vtot,underflow,pixelclk[khz]\n");
423 remaining_buffer -= chars_printed;
424 pBuf += chars_printed;
425
426 for (i = 0; i < pool->timing_generator_count; i++) {
427 struct timing_generator *tg = pool->timing_generators[i];
428 struct dcn_otg_state s = {0};
429 int pix_clk = 0;
430
431 optc1_read_otg_state(DCN10TG_FROM_TG(tg)({ const __typeof( ((struct optc *)0)->base ) *__mptr = (tg
); (struct optc *)( (char *)__mptr - __builtin_offsetof(struct
optc, base) );}), &s);
432 pix_clk = dc->current_state->res_ctx.pipe_ctx[i].stream_res.pix_clk_params.requested_pix_clk_100hz / 10;
433
434 //only print if OTG master is enabled
435 if (s.otg_enabled & 1) {
436 chars_printed = snprintf_count(pBuf, remaining_buffer, "%x,%d,%d,%d,%d,%d,%d,%d,%d,%d,"
437 "%d,%d,%d,%d,%d,%d,%d,%d,%d"
438 "\n",
439 tg->inst,
440 s.v_blank_start,
441 s.v_blank_end,
442 s.v_sync_a_start,
443 s.v_sync_a_end,
444 s.v_sync_a_pol,
445 s.v_total_max,
446 s.v_total_min,
447 s.v_total_max_sel,
448 s.v_total_min_sel,
449 s.h_blank_start,
450 s.h_blank_end,
451 s.h_sync_a_start,
452 s.h_sync_a_end,
453 s.h_sync_a_pol,
454 s.h_total,
455 s.v_total,
456 s.underflow_occurred_status,
457 pix_clk);
458
459 remaining_buffer -= chars_printed;
460 pBuf += chars_printed;
461 }
462 }
463
464 return bufSize - remaining_buffer;
465}
466
467static unsigned int dcn10_get_clock_states(struct dc *dc, char *pBuf, unsigned int bufSize)
468{
469 unsigned int chars_printed = 0;
470 unsigned int remaining_buffer = bufSize;
471
472 chars_printed = snprintf_count(pBuf, bufSize, "dcfclk,dcfclk_deep_sleep,dispclk,"
473 "dppclk,fclk,socclk\n"
474 "%d,%d,%d,%d,%d,%d\n",
475 dc->current_state->bw_ctx.bw.dcn.clk.dcfclk_khz,
476 dc->current_state->bw_ctx.bw.dcn.clk.dcfclk_deep_sleep_khz,
477 dc->current_state->bw_ctx.bw.dcn.clk.dispclk_khz,
478 dc->current_state->bw_ctx.bw.dcn.clk.dppclk_khz,
479 dc->current_state->bw_ctx.bw.dcn.clk.fclk_khz,
480 dc->current_state->bw_ctx.bw.dcn.clk.socclk_khz);
481
482 remaining_buffer -= chars_printed;
483 pBuf += chars_printed;
484
485 return bufSize - remaining_buffer;
486}
487
488static void dcn10_clear_otpc_underflow(struct dc *dc)
489{
490 struct resource_pool *pool = dc->res_pool;
491 int i;
492
493 for (i = 0; i < pool->timing_generator_count; i++) {
494 struct timing_generator *tg = pool->timing_generators[i];
495 struct dcn_otg_state s = {0};
496
497 optc1_read_otg_state(DCN10TG_FROM_TG(tg)({ const __typeof( ((struct optc *)0)->base ) *__mptr = (tg
); (struct optc *)( (char *)__mptr - __builtin_offsetof(struct
optc, base) );}), &s);
498
499 if (s.otg_enabled & 1)
500 tg->funcs->clear_optc_underflow(tg);
501 }
502}
503
504static void dcn10_clear_hubp_underflow(struct dc *dc)
505{
506 struct resource_pool *pool = dc->res_pool;
507 int i;
508
509 for (i = 0; i < pool->pipe_count; i++) {
510 struct hubp *hubp = pool->hubps[i];
511 struct dcn_hubp_state *s = &(TO_DCN10_HUBP(hubp)({ const __typeof( ((struct dcn10_hubp *)0)->base ) *__mptr
= (hubp); (struct dcn10_hubp *)( (char *)__mptr - __builtin_offsetof
(struct dcn10_hubp, base) );})->state);
512
513 hubp->funcs->hubp_read_state(hubp);
514
515 if (!s->blank_en)
516 hubp->funcs->hubp_clear_underflow(hubp);
517 }
518}
519
520void dcn10_clear_status_bits(struct dc *dc, unsigned int mask)
521{
522 /*
523 * Mask Format
524 * Bit 0 - 31: Status bit to clear
525 *
526 * Mask = 0x0 means clear all status bits
527 */
528 const unsigned int DC_HW_STATE_MASK_HUBP_UNDERFLOW = 0x1;
529 const unsigned int DC_HW_STATE_MASK_OTPC_UNDERFLOW = 0x2;
530
531 if (mask == 0x0)
532 mask = 0xFFFFFFFF;
533
534 if (mask & DC_HW_STATE_MASK_HUBP_UNDERFLOW)
535 dcn10_clear_hubp_underflow(dc);
536
537 if (mask & DC_HW_STATE_MASK_OTPC_UNDERFLOW)
538 dcn10_clear_otpc_underflow(dc);
539}
540
541void dcn10_get_hw_state(struct dc *dc, char *pBuf, unsigned int bufSize, unsigned int mask)
542{
543 /*
544 * Mask Format
545 * Bit 0 - 15: Hardware block mask
546 * Bit 15: 1 = Invariant Only, 0 = All
547 */
548 const unsigned int DC_HW_STATE_MASK_HUBBUB = 0x1;
549 const unsigned int DC_HW_STATE_MASK_HUBP = 0x2;
550 const unsigned int DC_HW_STATE_MASK_RQ = 0x4;
551 const unsigned int DC_HW_STATE_MASK_DLG = 0x8;
552 const unsigned int DC_HW_STATE_MASK_TTU = 0x10;
553 const unsigned int DC_HW_STATE_MASK_CM = 0x20;
554 const unsigned int DC_HW_STATE_MASK_MPCC = 0x40;
555 const unsigned int DC_HW_STATE_MASK_OTG = 0x80;
556 const unsigned int DC_HW_STATE_MASK_CLOCKS = 0x100;
557 const unsigned int DC_HW_STATE_INVAR_ONLY = 0x8000;
558
559 unsigned int chars_printed = 0;
560 unsigned int remaining_buf_size = bufSize;
561
562 if (mask == 0x0)
563 mask = 0xFFFF; // Default, capture all, invariant only
564
565 if ((mask & DC_HW_STATE_MASK_HUBBUB) && remaining_buf_size > 0) {
566 chars_printed = dcn10_get_hubbub_state(dc, pBuf, remaining_buf_size);
567 pBuf += chars_printed;
568 remaining_buf_size -= chars_printed;
569 }
570
571 if ((mask & DC_HW_STATE_MASK_HUBP) && remaining_buf_size > 0) {
572 chars_printed = dcn10_get_hubp_states(dc, pBuf, remaining_buf_size, mask & DC_HW_STATE_INVAR_ONLY);
573 pBuf += chars_printed;
574 remaining_buf_size -= chars_printed;
575 }
576
577 if ((mask & DC_HW_STATE_MASK_RQ) && remaining_buf_size > 0) {
578 chars_printed = dcn10_get_rq_states(dc, pBuf, remaining_buf_size);
579 pBuf += chars_printed;
580 remaining_buf_size -= chars_printed;
581 }
582
583 if ((mask & DC_HW_STATE_MASK_DLG) && remaining_buf_size > 0) {
584 chars_printed = dcn10_get_dlg_states(dc, pBuf, remaining_buf_size);
585 pBuf += chars_printed;
586 remaining_buf_size -= chars_printed;
587 }
588
589 if ((mask & DC_HW_STATE_MASK_TTU) && remaining_buf_size > 0) {
590 chars_printed = dcn10_get_ttu_states(dc, pBuf, remaining_buf_size);
591 pBuf += chars_printed;
592 remaining_buf_size -= chars_printed;
593 }
594
595 if ((mask & DC_HW_STATE_MASK_CM) && remaining_buf_size > 0) {
596 chars_printed = dcn10_get_cm_states(dc, pBuf, remaining_buf_size);
597 pBuf += chars_printed;
598 remaining_buf_size -= chars_printed;
599 }
600
601 if ((mask & DC_HW_STATE_MASK_MPCC) && remaining_buf_size > 0) {
602 chars_printed = dcn10_get_mpcc_states(dc, pBuf, remaining_buf_size);
603 pBuf += chars_printed;
604 remaining_buf_size -= chars_printed;
605 }
606
607 if ((mask & DC_HW_STATE_MASK_OTG) && remaining_buf_size > 0) {
608 chars_printed = dcn10_get_otg_states(dc, pBuf, remaining_buf_size);
609 pBuf += chars_printed;
610 remaining_buf_size -= chars_printed;
611 }
612
613 if ((mask & DC_HW_STATE_MASK_CLOCKS) && remaining_buf_size > 0) {
614 chars_printed = dcn10_get_clock_states(dc, pBuf, remaining_buf_size);
615 pBuf += chars_printed;
616 remaining_buf_size -= chars_printed;
Value stored to 'remaining_buf_size' is never read
617 }
618}