tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 03c9c649e6f28e26260d276ce755f785b2435da3 commit: 1faf759d302206a8387d685808928c228c9aa306 [13/13] ub:ubus: Add MSI capability for UBUS driver config: arm64-randconfig-004-20251226 (https://download.01.org/0day-ci/archive/20251226/202512261650.agrBBnFd-lkp@i...) compiler: aarch64-linux-gcc (GCC) 13.4.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251226/202512261650.agrBBnFd-lkp@i...) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202512261650.agrBBnFd-lkp@intel.com/ All error/warnings (new ones prefixed by >>):

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drivers/ub/ubus/interrupt.c:43:6: warning: no previous prototype for 'ub_intr_init' [-Wmissing-prototypes] 43 | void ub_intr_init(struct ub_entity *uent) | ^~~~~~~~~~~~ drivers/ub/ubus/interrupt.c: In function 'int_type1_capability_init': drivers/ub/ubus/interrupt.c:121:15: error: implicit declaration of function 'usi_setup_interrupts' [-Werror=implicit-function-declaration] 121 | ret = usi_setup_interrupts(uent, entries, nvec, affd); | ^~~~~~~~~~~~~~~~~~~~ drivers/ub/ubus/interrupt.c: In function 'int_type2_capability_init': drivers/ub/ubus/interrupt.c:151:25: error: implicit declaration of function 'ub_intr_addr_count'; did you mean 'ub_intr_vec_count'? [-Werror=implicit-function-declaration] 151 | addr_num = (int)ub_intr_addr_count(uent); | ^~~~~~~~~~~~~~~~~~ | ub_intr_vec_count drivers/ub/ubus/interrupt.c: In function '__ub_enable_usi_range': drivers/ub/ubus/interrupt.c:235:15: error: implicit declaration of function 'ub_setup_msi_context' [-Werror=implicit-function-declaration] 235 | ret = ub_setup_msi_context(uent); | ^~~~~~~~~~~~~~~~~~~~ drivers/ub/ubus/interrupt.c:239:14: error: implicit declaration of function 'ub_setup_usi_device_domain' [-Werror=implicit-function-declaration] 239 | if (!ub_setup_usi_device_domain(uent, hwsize)) { | ^~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors

Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for RESCTRL_FS Depends on [n]: MISC_FILESYSTEMS [=n] && ARCH_HAS_CPU_RESCTRL [=y] Selected by [y]: - ARM64_MPAM [=y] vim +/usi_setup_interrupts +121 drivers/ub/ubus/interrupt.c 42

43 void ub_intr_init(struct ub_entity *uent) 44 { 45 if (uent->cfg1_bitmap[0] & UB_INT_TYPE2_CAP_BIT) 46 uent->intr_type1 = 0; 47 else if (uent->cfg1_bitmap[0] & UB_INT_TYPE1_CAP_BIT) 48 uent->intr_type1 = 1; 49 else 50 uent->no_intr = 1; 51 } 52 53 u32 ub_int_type1_vec_count(struct ub_entity *uent) 54 { 55 u16 vector_num = 0; 56 int ret; 57 58 ret = ub_cfg_read_word(uent, UB_INT_TYPE1_SUP_INT_NUM, &vector_num); 59 if (ret) 60 return 0; 61 62 /* Mapping between the number of bitmaps and vectors defined in the protocol */ 63 vector_num = 1 << vector_num; 64 65 return vector_num; 66 } 67 EXPORT_SYMBOL_GPL(ub_int_type1_vec_count); 68 69 static void __iomem *ub_intr_map_region(struct ub_entity *uent, 70 enum ub_intr_tbl_type type, int nr_entries) 71 { 72 u32 addr_reg_l, addr_reg_h, offset_l, offset_h; 73 resource_size_t tb_phys_addr; 74 unsigned long flags, sz; 75 u64 offset; 76 int ret; 77 78 if (nr_entries <= 0) 79 return NULL; 80 if (type == UB_INTR_VECTOR_TBL) { 81 addr_reg_l = UB_INT_VECTOR_TBL_SA_L; 82 addr_reg_h = UB_INT_VECTOR_TBL_SA_H; 83 sz = (unsigned long)(nr_entries * UB_INTR_VECTOR_ENTRY_SIZE); 84 } else { 85 addr_reg_l = UB_INT_ADDR_TBL_SA_L; 86 addr_reg_h = UB_INT_ADDR_TBL_SA_H; 87 sz = (unsigned long)(nr_entries * UB_INTR_ADDR_ENTRY_SIZE); 88 } 89 90 ret = ub_cfg_read_dword(uent, addr_reg_l, &offset_l); 91 ret |= ub_cfg_read_dword(uent, addr_reg_h, &offset_h); 92 if (ret) { 93 ub_err(uent, "read addr register failed, ret=%d\n", ret); 94 return NULL; 95 } 96 97 offset = ((u64)offset_h << 32) | offset_l; 98 99 flags = ub_resource_flags(uent, 0); 100 if (!flags || (flags & IORESOURCE_UNSET)) 101 return NULL; 102 103 if (offset + sz > ub_resource_len(uent, 0)) { 104 ub_err(uent, "UB interrupt table(type:%u) off:%#llx + sz:%#lx is out of range!\n", 105 type, offset, sz); 106 return NULL; 107 } 108 tb_phys_addr = ub_resource_start(uent, 0) + offset; 109 110 return ioremap(tb_phys_addr, sz); 111 } 112 113 static int int_type1_capability_init(struct ub_entity *uent, 114 struct ub_usi_entry *entries, int nvec, 115 struct irq_affinity *affd) 116 { 117 int ret; 118 119 uent->intr_enabled = 1; 120 121 ret = usi_setup_interrupts(uent, entries, nvec, affd); 122 if (ret) 123 goto out_disable; 124 125 ub_cfg_write_byte(uent, UB_INT_TYPE1_ENABLE, 1); 126 return 0; 127 128 out_disable: 129 uent->intr_enabled = 0; 130 131 return ret; 132 } 133 134 static int int_type2_capability_init(struct ub_entity *uent, 135 struct ub_usi_entry *entries, int nvec, 136 struct irq_affinity *affd) 137 { 138 void __iomem *vector_base, *addr_base; 139 int vector_num, addr_num; 140 int ret; 141 142 uent->intr_enabled = 1; 143 144 vector_num = (int)ub_intr_vec_count(uent); 145 /* Request & Map UB interrupt table region */ 146 vector_base = ub_intr_map_region(uent, UB_INTR_VECTOR_TBL, vector_num); 147 if (!vector_base) { 148 ret = -ENOMEM; 149 goto out_disable; 150 } 151 addr_num = (int)ub_intr_addr_count(uent); 152 addr_base = ub_intr_map_region(uent, UB_INTR_ADDR_TBL, addr_num); 153 if (!addr_base) { 154 iounmap(vector_base); 155 ret = -ENOMEM; 156 goto out_disable; 157 } 158 uent->intr_vector_base = vector_base; 159 uent->intr_addr_base = addr_base; 160 161 ret = usi_setup_interrupts(uent, entries, nvec, affd); 162 if (ret) 163 goto out_disable; 164 165 ub_cfg_write_byte(uent, UB_INT_MASK, 0); 166 ub_cfg_write_byte(uent, UB_INT_EN, 1); 167 168 return 0; 169 170 out_disable: 171 uent->intr_enabled = 0; 172 173 return ret; 174 } 175 176 static int ub_msi_supported(struct ub_entity *uent, int nvec) 177 { 178 if (!uent || uent->no_intr || nvec < 1) 179 return 0; 180 181 return 1; 182 } 183 184 static int ub_usi_entry_invalid_check(struct ub_usi_entry *ents, 185 int nvec, int nr_ents) 186 { 187 int i, j; 188 189 if (!ents) 190 return 0; 191 192 for (i = 0; i < nvec; i++) { 193 if (ents[i].entry >= nr_ents) 194 return -EINVAL; 195 196 for (j = i + 1; j < nvec; j++) 197 if (ents[i].entry == ents[j].entry) 198 return -EINVAL; 199 } 200 201 return 0; 202 } 203 204 static int __ub_enable_usi_range(struct ub_entity *uent, 205 struct ub_usi_entry *entries, int minvec, 206 int maxvec, struct irq_affinity *affd) 207 { 208 int hwsize, nvec = maxvec; 209 int ret; 210 211 if (maxvec < minvec) 212 return -ERANGE; 213 214 if (!ub_msi_supported(uent, nvec)) 215 return -EINVAL; 216 217 if (uent->intr_type1) 218 hwsize = (int)ub_int_type1_vec_count(uent); 219 else 220 hwsize = (int)ub_intr_vec_count(uent); 221 if (hwsize == 0) { 222 ub_err(uent, "int vector cnt is zero.\n"); 223 return -ENOSPC; 224 } 225 226 ret = ub_usi_entry_invalid_check(entries, nvec, hwsize); 227 if (ret) 228 return ret; 229 230 if (hwsize < nvec) 231 nvec = hwsize; 232 if (nvec < minvec) 233 return -ENOSPC; 234 235 ret = ub_setup_msi_context(uent); 236 if (ret) 237 return ret; 238 239 if (!ub_setup_usi_device_domain(uent, hwsize)) { 240 ub_err(uent, "ub setup device domain failed.\n"); 241 return -ENODEV; 242 } 243 244 if (affd) { 245 nvec = ub_irq_calc_affinity_vectors(minvec, nvec, affd); 246 if (nvec < minvec) { 247 ub_err(uent, "irq calc affd failed.\n"); 248 return -ENOSPC; 249 } 250 } 251 252 if (uent->intr_type1) 253 ret = int_type1_capability_init(uent, entries, nvec, affd); 254 else 255 ret = int_type2_capability_init(uent, entries, nvec, affd); 256 if (ret) 257 return ret; 258 259 return nvec; 260 } 261

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