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Subjectarch/powerpc/platforms/powernv/opal-core.c:476:58: sparse: sparse: incorrect type in argument 2 (different base types)
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 4f12b742eb2b3a850ac8be7dc4ed52976fc6cb0b
commit: d936f8182e1bd18f5e9e6c5e8d8b69261200ca96 powerpc/powernv: Fix type of opal_mpipl_query_tag() addr argument
date: 10 months ago
config: powerpc64-randconfig-s032-20220220 (https://download.01.org/0day-ci/archive/20220220/202202202338.FLQ4w2vm-lkp@intel.com/config)
compiler: powerpc64-linux-gcc (GCC) 11.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d936f8182e1bd18f5e9e6c5e8d8b69261200ca96
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout d936f8182e1bd18f5e9e6c5e8d8b69261200ca96
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/platforms/powernv/ drivers/gpu/drm/amd/display/amdgpu_dm/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)
arch/powerpc/platforms/powernv/opal-core.c:99:24: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] n_namesz @@ got restricted __be32 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:99:24: sparse: expected unsigned int [usertype] n_namesz
arch/powerpc/platforms/powernv/opal-core.c:99:24: sparse: got restricted __be32 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:100:24: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] n_descsz @@ got restricted __be32 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:100:24: sparse: expected unsigned int [usertype] n_descsz
arch/powerpc/platforms/powernv/opal-core.c:100:24: sparse: got restricted __be32 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:101:24: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] n_type @@ got restricted __be32 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:101:24: sparse: expected unsigned int [usertype] n_type
arch/powerpc/platforms/powernv/opal-core.c:101:24: sparse: got restricted __be32 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:122:34: sparse: sparse: incorrect type in assignment (different base types) @@ expected int [usertype] pr_pid @@ got restricted __be32 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:122:34: sparse: expected int [usertype] pr_pid
arch/powerpc/platforms/powernv/opal-core.c:122:34: sparse: got restricted __be32 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:123:34: sparse: sparse: incorrect type in assignment (different base types) @@ expected int [usertype] pr_ppid @@ got restricted __be32 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:123:34: sparse: expected int [usertype] pr_ppid
arch/powerpc/platforms/powernv/opal-core.c:123:34: sparse: got restricted __be32 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:133:44: sparse: sparse: incorrect type in assignment (different base types) @@ expected short pr_cursig @@ got restricted __be16 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:133:44: sparse: expected short pr_cursig
arch/powerpc/platforms/powernv/opal-core.c:133:44: sparse: got restricted __be16 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:146:21: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long long [usertype] @@ got restricted __be64 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:146:21: sparse: expected unsigned long long [usertype]
arch/powerpc/platforms/powernv/opal-core.c:146:21: sparse: got restricted __be64 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:147:21: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long long [usertype] @@ got restricted __be64 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:147:21: sparse: expected unsigned long long [usertype]
arch/powerpc/platforms/powernv/opal-core.c:147:21: sparse: got restricted __be64 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:150:21: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long long [usertype] @@ got restricted __be64 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:150:21: sparse: expected unsigned long long [usertype]
arch/powerpc/platforms/powernv/opal-core.c:150:21: sparse: got restricted __be64 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:277:17: sparse: sparse: cast to restricted __be64
arch/powerpc/platforms/powernv/opal-core.c:277:17: sparse: sparse: cast to restricted __be64
arch/powerpc/platforms/powernv/opal-core.c:363:21: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [usertype] e_type @@ got restricted __be16 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:363:21: sparse: expected unsigned short [usertype] e_type
arch/powerpc/platforms/powernv/opal-core.c:363:21: sparse: got restricted __be16 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:364:24: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [usertype] e_machine @@ got restricted __be16 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:364:24: sparse: expected unsigned short [usertype] e_machine
arch/powerpc/platforms/powernv/opal-core.c:364:24: sparse: got restricted __be16 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:365:24: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] e_version @@ got restricted __be32 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:365:24: sparse: expected unsigned int [usertype] e_version
arch/powerpc/platforms/powernv/opal-core.c:365:24: sparse: got restricted __be32 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:367:22: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long long [usertype] e_phoff @@ got restricted __be64 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:367:22: sparse: expected unsigned long long [usertype] e_phoff
arch/powerpc/platforms/powernv/opal-core.c:367:22: sparse: got restricted __be64 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:371:23: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [usertype] e_ehsize @@ got restricted __be16 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:371:23: sparse: expected unsigned short [usertype] e_ehsize
arch/powerpc/platforms/powernv/opal-core.c:371:23: sparse: got restricted __be16 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:372:26: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [usertype] e_phentsize @@ got restricted __be16 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:372:26: sparse: expected unsigned short [usertype] e_phentsize
arch/powerpc/platforms/powernv/opal-core.c:372:26: sparse: got restricted __be16 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:380:25: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] p_type @@ got restricted __be32 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:380:25: sparse: expected unsigned int [usertype] p_type
arch/powerpc/platforms/powernv/opal-core.c:380:25: sparse: got restricted __be32 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:384:25: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long long [usertype] p_offset @@ got restricted __be64 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:384:25: sparse: expected unsigned long long [usertype] p_offset
arch/powerpc/platforms/powernv/opal-core.c:384:25: sparse: got restricted __be64 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:385:41: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long long [usertype] p_memsz @@ got restricted __be64 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:385:41: sparse: expected unsigned long long [usertype] p_memsz
arch/powerpc/platforms/powernv/opal-core.c:385:41: sparse: got restricted __be64 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:394:33: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] p_type @@ got restricted __be32 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:394:33: sparse: expected unsigned int [usertype] p_type
arch/powerpc/platforms/powernv/opal-core.c:394:33: sparse: got restricted __be32 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:395:33: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] p_flags @@ got restricted __be32 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:395:33: sparse: expected unsigned int [usertype] p_flags
arch/powerpc/platforms/powernv/opal-core.c:395:33: sparse: got restricted __be32 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:406:33: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long long [usertype] p_paddr @@ got restricted __be64 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:406:33: sparse: expected unsigned long long [usertype] p_paddr
arch/powerpc/platforms/powernv/opal-core.c:406:33: sparse: got restricted __be64 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:407:33: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long long [usertype] p_vaddr @@ got restricted __be64 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:407:33: sparse: expected unsigned long long [usertype] p_vaddr
arch/powerpc/platforms/powernv/opal-core.c:407:33: sparse: got restricted __be64 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:408:50: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long long [usertype] p_memsz @@ got restricted __be64 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:408:50: sparse: expected unsigned long long [usertype] p_memsz
arch/powerpc/platforms/powernv/opal-core.c:408:50: sparse: got restricted __be64 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:410:33: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long long [usertype] p_offset @@ got restricted __be64 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:410:33: sparse: expected unsigned long long [usertype] p_offset
arch/powerpc/platforms/powernv/opal-core.c:410:33: sparse: got restricted __be64 [usertype]
arch/powerpc/platforms/powernv/opal-core.c:417:22: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [usertype] e_phnum @@ got restricted __be16 [usertype] @@
arch/powerpc/platforms/powernv/opal-core.c:417:22: sparse: expected unsigned short [usertype] e_phnum
arch/powerpc/platforms/powernv/opal-core.c:417:22: sparse: got restricted __be16 [usertype]
>> arch/powerpc/platforms/powernv/opal-core.c:476:58: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected restricted __be64 [usertype] *addr @@ got unsigned long long * @@
arch/powerpc/platforms/powernv/opal-core.c:476:58: sparse: expected restricted __be64 [usertype] *addr
arch/powerpc/platforms/powernv/opal-core.c:476:58: sparse: got unsigned long long *
arch/powerpc/platforms/powernv/opal-core.c:482:16: sparse: sparse: cast to restricted __be64
arch/powerpc/platforms/powernv/opal-core.c:487:57: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected restricted __be64 [usertype] *addr @@ got unsigned long long * @@
arch/powerpc/platforms/powernv/opal-core.c:487:57: sparse: expected restricted __be64 [usertype] *addr
arch/powerpc/platforms/powernv/opal-core.c:487:57: sparse: got unsigned long long *
arch/powerpc/platforms/powernv/opal-core.c:493:16: sparse: sparse: cast to restricted __be64
arch/powerpc/platforms/powernv/opal-core.c: note: in included file:
arch/powerpc/platforms/powernv/opal-fadump.h:138:33: sparse: sparse: restricted __be64 degrades to integer
--
arch/powerpc/platforms/powernv/opal-fadump.c:104:41: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long long [usertype] boot_mem_dest_addr @@ got restricted __be64 const [usertype] dest @@
arch/powerpc/platforms/powernv/opal-fadump.c:104:41: sparse: expected unsigned long long [usertype] boot_mem_dest_addr
arch/powerpc/platforms/powernv/opal-fadump.c:104:41: sparse: got restricted __be64 const [usertype] dest
arch/powerpc/platforms/powernv/opal-fadump.c:130:22: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long base @@ got restricted __be64 const [usertype] src @@
arch/powerpc/platforms/powernv/opal-fadump.c:130:22: sparse: expected unsigned long base
arch/powerpc/platforms/powernv/opal-fadump.c:130:22: sparse: got restricted __be64 const [usertype] src
arch/powerpc/platforms/powernv/opal-fadump.c:131:22: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long size @@ got restricted __be64 const [usertype] size @@
arch/powerpc/platforms/powernv/opal-fadump.c:131:22: sparse: expected unsigned long size
arch/powerpc/platforms/powernv/opal-fadump.c:131:22: sparse: got restricted __be64 const [usertype] size
arch/powerpc/platforms/powernv/opal-fadump.c:146:46: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long reserve_dump_area_start @@ got restricted __be64 const [usertype] dest @@
arch/powerpc/platforms/powernv/opal-fadump.c:146:46: sparse: expected unsigned long reserve_dump_area_start
arch/powerpc/platforms/powernv/opal-fadump.c:146:46: sparse: got restricted __be64 const [usertype] dest
arch/powerpc/platforms/powernv/opal-fadump.c:196:41: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be64 [usertype] src @@ got unsigned long long @@
arch/powerpc/platforms/powernv/opal-fadump.c:196:41: sparse: expected restricted __be64 [usertype] src
arch/powerpc/platforms/powernv/opal-fadump.c:196:41: sparse: got unsigned long long
arch/powerpc/platforms/powernv/opal-fadump.c:197:41: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be64 [usertype] dest @@ got unsigned long long [usertype] addr @@
arch/powerpc/platforms/powernv/opal-fadump.c:197:41: sparse: expected restricted __be64 [usertype] dest
arch/powerpc/platforms/powernv/opal-fadump.c:197:41: sparse: got unsigned long long [usertype] addr
arch/powerpc/platforms/powernv/opal-fadump.c:198:41: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be64 [usertype] size @@ got unsigned long long @@
arch/powerpc/platforms/powernv/opal-fadump.c:198:41: sparse: expected restricted __be64 [usertype] size
arch/powerpc/platforms/powernv/opal-fadump.c:198:41: sparse: got unsigned long long
arch/powerpc/platforms/powernv/opal-fadump.c:208:53: sparse: sparse: restricted __be64 degrades to integer
arch/powerpc/platforms/powernv/opal-fadump.c:276:56: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected unsigned long long [usertype] src @@ got restricted __be64 [usertype] src @@
arch/powerpc/platforms/powernv/opal-fadump.c:276:56: sparse: expected unsigned long long [usertype] src
arch/powerpc/platforms/powernv/opal-fadump.c:276:56: sparse: got restricted __be64 [usertype] src
arch/powerpc/platforms/powernv/opal-fadump.c:277:56: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected unsigned long long [usertype] dest @@ got restricted __be64 [usertype] dest @@
arch/powerpc/platforms/powernv/opal-fadump.c:277:56: sparse: expected unsigned long long [usertype] dest
arch/powerpc/platforms/powernv/opal-fadump.c:277:56: sparse: got restricted __be64 [usertype] dest
arch/powerpc/platforms/powernv/opal-fadump.c:278:56: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected unsigned long long [usertype] size @@ got restricted __be64 [usertype] size @@
arch/powerpc/platforms/powernv/opal-fadump.c:278:56: sparse: expected unsigned long long [usertype] size
arch/powerpc/platforms/powernv/opal-fadump.c:278:56: sparse: got restricted __be64 [usertype] size
arch/powerpc/platforms/powernv/opal-fadump.c:573:38: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long long [usertype] dumped_bytes @@ got restricted __be64 const [usertype] size @@
arch/powerpc/platforms/powernv/opal-fadump.c:573:38: sparse: expected unsigned long long [usertype] dumped_bytes
arch/powerpc/platforms/powernv/opal-fadump.c:573:38: sparse: got restricted __be64 const [usertype] size
>> arch/powerpc/platforms/powernv/opal-fadump.c:683:60: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected restricted __be64 [usertype] *addr @@ got unsigned long long * @@
arch/powerpc/platforms/powernv/opal-fadump.c:683:60: sparse: expected restricted __be64 [usertype] *addr
arch/powerpc/platforms/powernv/opal-fadump.c:683:60: sparse: got unsigned long long *
arch/powerpc/platforms/powernv/opal-fadump.c:689:16: sparse: sparse: cast to restricted __be64
arch/powerpc/platforms/powernv/opal-fadump.c:705:57: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected restricted __be64 [usertype] *addr @@ got unsigned long long * @@
arch/powerpc/platforms/powernv/opal-fadump.c:705:57: sparse: expected restricted __be64 [usertype] *addr
arch/powerpc/platforms/powernv/opal-fadump.c:705:57: sparse: got unsigned long long *
arch/powerpc/platforms/powernv/opal-fadump.c:707:24: sparse: sparse: cast to restricted __be64
arch/powerpc/platforms/powernv/opal-fadump.c: note: in included file:
arch/powerpc/platforms/powernv/opal-fadump.h:138:33: sparse: sparse: restricted __be64 degrades to integer

vim +476 arch/powerpc/platforms/powernv/opal-core.c

6f713d18144ce8 Hari Bathini 2019-09-11 298
6f713d18144ce8 Hari Bathini 2019-09-11 299 static int __init create_opalcore(void)
6f713d18144ce8 Hari Bathini 2019-09-11 300 {
6f713d18144ce8 Hari Bathini 2019-09-11 301 u64 opal_boot_entry, opal_base_addr, paddr;
6f713d18144ce8 Hari Bathini 2019-09-11 302 u32 hdr_size, cpu_notes_size, count;
6f713d18144ce8 Hari Bathini 2019-09-11 303 struct device_node *dn;
6f713d18144ce8 Hari Bathini 2019-09-11 304 struct opalcore *new;
6f713d18144ce8 Hari Bathini 2019-09-11 305 loff_t opalcore_off;
6f713d18144ce8 Hari Bathini 2019-09-11 306 struct page *page;
6f713d18144ce8 Hari Bathini 2019-09-11 307 Elf64_Phdr *phdr;
6f713d18144ce8 Hari Bathini 2019-09-11 308 Elf64_Ehdr *elf;
6f713d18144ce8 Hari Bathini 2019-09-11 309 int i, ret;
6f713d18144ce8 Hari Bathini 2019-09-11 310 char *bufp;
6f713d18144ce8 Hari Bathini 2019-09-11 311
6f713d18144ce8 Hari Bathini 2019-09-11 312 /* Get size of header & CPU notes for OPAL core */
6f713d18144ce8 Hari Bathini 2019-09-11 313 hdr_size = (sizeof(Elf64_Ehdr) +
6f713d18144ce8 Hari Bathini 2019-09-11 314 ((oc_conf->ptload_cnt + 1) * sizeof(Elf64_Phdr)));
6f713d18144ce8 Hari Bathini 2019-09-11 315 cpu_notes_size = ((oc_conf->num_cpus * (CRASH_CORE_NOTE_HEAD_BYTES +
6f713d18144ce8 Hari Bathini 2019-09-11 316 CRASH_CORE_NOTE_NAME_BYTES +
6f713d18144ce8 Hari Bathini 2019-09-11 317 CRASH_CORE_NOTE_DESC_BYTES)) +
6f713d18144ce8 Hari Bathini 2019-09-11 318 (CRASH_CORE_NOTE_HEAD_BYTES +
6f713d18144ce8 Hari Bathini 2019-09-11 319 CRASH_CORE_NOTE_NAME_BYTES + AUXV_DESC_SZ));
6f713d18144ce8 Hari Bathini 2019-09-11 320
6f713d18144ce8 Hari Bathini 2019-09-11 321 /* Allocate buffer to setup OPAL core */
6f713d18144ce8 Hari Bathini 2019-09-11 322 oc_conf->opalcorebuf_sz = PAGE_ALIGN(hdr_size + cpu_notes_size);
6f713d18144ce8 Hari Bathini 2019-09-11 323 oc_conf->opalcorebuf = alloc_pages_exact(oc_conf->opalcorebuf_sz,
6f713d18144ce8 Hari Bathini 2019-09-11 324 GFP_KERNEL | __GFP_ZERO);
6f713d18144ce8 Hari Bathini 2019-09-11 325 if (!oc_conf->opalcorebuf) {
6f713d18144ce8 Hari Bathini 2019-09-11 326 pr_err("Not enough memory to setup OPAL core (size: %lu)\n",
6f713d18144ce8 Hari Bathini 2019-09-11 327 oc_conf->opalcorebuf_sz);
6f713d18144ce8 Hari Bathini 2019-09-11 328 oc_conf->opalcorebuf_sz = 0;
6f713d18144ce8 Hari Bathini 2019-09-11 329 return -ENOMEM;
6f713d18144ce8 Hari Bathini 2019-09-11 330 }
6f713d18144ce8 Hari Bathini 2019-09-11 331 count = oc_conf->opalcorebuf_sz / PAGE_SIZE;
6f713d18144ce8 Hari Bathini 2019-09-11 332 page = virt_to_page(oc_conf->opalcorebuf);
6f713d18144ce8 Hari Bathini 2019-09-11 333 for (i = 0; i < count; i++)
6f713d18144ce8 Hari Bathini 2019-09-11 334 mark_page_reserved(page + i);
6f713d18144ce8 Hari Bathini 2019-09-11 335
6f713d18144ce8 Hari Bathini 2019-09-11 336 pr_debug("opalcorebuf = 0x%llx\n", (u64)oc_conf->opalcorebuf);
6f713d18144ce8 Hari Bathini 2019-09-11 337
6f713d18144ce8 Hari Bathini 2019-09-11 338 /* Read OPAL related device-tree entries */
6f713d18144ce8 Hari Bathini 2019-09-11 339 dn = of_find_node_by_name(NULL, "ibm,opal");
6f713d18144ce8 Hari Bathini 2019-09-11 340 if (dn) {
6f713d18144ce8 Hari Bathini 2019-09-11 341 ret = of_property_read_u64(dn, "opal-base-address",
6f713d18144ce8 Hari Bathini 2019-09-11 342 &opal_base_addr);
6f713d18144ce8 Hari Bathini 2019-09-11 343 pr_debug("opal-base-address: %llx\n", opal_base_addr);
6f713d18144ce8 Hari Bathini 2019-09-11 344 ret |= of_property_read_u64(dn, "opal-boot-address",
6f713d18144ce8 Hari Bathini 2019-09-11 345 &opal_boot_entry);
6f713d18144ce8 Hari Bathini 2019-09-11 346 pr_debug("opal-boot-address: %llx\n", opal_boot_entry);
6f713d18144ce8 Hari Bathini 2019-09-11 347 }
6f713d18144ce8 Hari Bathini 2019-09-11 348 if (!dn || ret)
6f713d18144ce8 Hari Bathini 2019-09-11 349 pr_warn("WARNING: Failed to read OPAL base & entry values\n");
6f713d18144ce8 Hari Bathini 2019-09-11 350
6f713d18144ce8 Hari Bathini 2019-09-11 351 /* Use count to keep track of the program headers */
6f713d18144ce8 Hari Bathini 2019-09-11 352 count = 0;
6f713d18144ce8 Hari Bathini 2019-09-11 353
6f713d18144ce8 Hari Bathini 2019-09-11 354 bufp = oc_conf->opalcorebuf;
6f713d18144ce8 Hari Bathini 2019-09-11 355 elf = (Elf64_Ehdr *)bufp;
6f713d18144ce8 Hari Bathini 2019-09-11 356 bufp += sizeof(Elf64_Ehdr);
6f713d18144ce8 Hari Bathini 2019-09-11 357 memcpy(elf->e_ident, ELFMAG, SELFMAG);
6f713d18144ce8 Hari Bathini 2019-09-11 358 elf->e_ident[EI_CLASS] = ELF_CLASS;
6f713d18144ce8 Hari Bathini 2019-09-11 359 elf->e_ident[EI_DATA] = ELFDATA2MSB;
6f713d18144ce8 Hari Bathini 2019-09-11 360 elf->e_ident[EI_VERSION] = EV_CURRENT;
6f713d18144ce8 Hari Bathini 2019-09-11 361 elf->e_ident[EI_OSABI] = ELF_OSABI;
6f713d18144ce8 Hari Bathini 2019-09-11 362 memset(elf->e_ident+EI_PAD, 0, EI_NIDENT-EI_PAD);
6f713d18144ce8 Hari Bathini 2019-09-11 363 elf->e_type = cpu_to_be16(ET_CORE);
6f713d18144ce8 Hari Bathini 2019-09-11 364 elf->e_machine = cpu_to_be16(ELF_ARCH);
6f713d18144ce8 Hari Bathini 2019-09-11 365 elf->e_version = cpu_to_be32(EV_CURRENT);
6f713d18144ce8 Hari Bathini 2019-09-11 366 elf->e_entry = 0;
6f713d18144ce8 Hari Bathini 2019-09-11 367 elf->e_phoff = cpu_to_be64(sizeof(Elf64_Ehdr));
6f713d18144ce8 Hari Bathini 2019-09-11 368 elf->e_shoff = 0;
6f713d18144ce8 Hari Bathini 2019-09-11 369 elf->e_flags = 0;
6f713d18144ce8 Hari Bathini 2019-09-11 370
6f713d18144ce8 Hari Bathini 2019-09-11 371 elf->e_ehsize = cpu_to_be16(sizeof(Elf64_Ehdr));
6f713d18144ce8 Hari Bathini 2019-09-11 372 elf->e_phentsize = cpu_to_be16(sizeof(Elf64_Phdr));
6f713d18144ce8 Hari Bathini 2019-09-11 373 elf->e_phnum = 0;
6f713d18144ce8 Hari Bathini 2019-09-11 374 elf->e_shentsize = 0;
6f713d18144ce8 Hari Bathini 2019-09-11 375 elf->e_shnum = 0;
6f713d18144ce8 Hari Bathini 2019-09-11 376 elf->e_shstrndx = 0;
6f713d18144ce8 Hari Bathini 2019-09-11 377
6f713d18144ce8 Hari Bathini 2019-09-11 378 phdr = (Elf64_Phdr *)bufp;
6f713d18144ce8 Hari Bathini 2019-09-11 379 bufp += sizeof(Elf64_Phdr);
6f713d18144ce8 Hari Bathini 2019-09-11 380 phdr->p_type = cpu_to_be32(PT_NOTE);
6f713d18144ce8 Hari Bathini 2019-09-11 381 phdr->p_flags = 0;
6f713d18144ce8 Hari Bathini 2019-09-11 382 phdr->p_align = 0;
6f713d18144ce8 Hari Bathini 2019-09-11 383 phdr->p_paddr = phdr->p_vaddr = 0;
6f713d18144ce8 Hari Bathini 2019-09-11 384 phdr->p_offset = cpu_to_be64(hdr_size);
6f713d18144ce8 Hari Bathini 2019-09-11 385 phdr->p_filesz = phdr->p_memsz = cpu_to_be64(cpu_notes_size);
6f713d18144ce8 Hari Bathini 2019-09-11 386 count++;
6f713d18144ce8 Hari Bathini 2019-09-11 387
6f713d18144ce8 Hari Bathini 2019-09-11 388 opalcore_off = oc_conf->opalcorebuf_sz;
6f713d18144ce8 Hari Bathini 2019-09-11 389 oc_conf->ptload_phdr = (Elf64_Phdr *)bufp;
6f713d18144ce8 Hari Bathini 2019-09-11 390 paddr = 0;
6f713d18144ce8 Hari Bathini 2019-09-11 391 for (i = 0; i < oc_conf->ptload_cnt; i++) {
6f713d18144ce8 Hari Bathini 2019-09-11 392 phdr = (Elf64_Phdr *)bufp;
6f713d18144ce8 Hari Bathini 2019-09-11 393 bufp += sizeof(Elf64_Phdr);
6f713d18144ce8 Hari Bathini 2019-09-11 394 phdr->p_type = cpu_to_be32(PT_LOAD);
6f713d18144ce8 Hari Bathini 2019-09-11 395 phdr->p_flags = cpu_to_be32(PF_R|PF_W|PF_X);
6f713d18144ce8 Hari Bathini 2019-09-11 396 phdr->p_align = 0;
6f713d18144ce8 Hari Bathini 2019-09-11 397
6f713d18144ce8 Hari Bathini 2019-09-11 398 new = get_new_element();
6f713d18144ce8 Hari Bathini 2019-09-11 399 if (!new)
6f713d18144ce8 Hari Bathini 2019-09-11 400 return -ENOMEM;
6f713d18144ce8 Hari Bathini 2019-09-11 401 new->paddr = oc_conf->ptload_addr[i];
6f713d18144ce8 Hari Bathini 2019-09-11 402 new->size = oc_conf->ptload_size[i];
6f713d18144ce8 Hari Bathini 2019-09-11 403 new->offset = opalcore_off;
6f713d18144ce8 Hari Bathini 2019-09-11 404 list_add_tail(&new->list, &opalcore_list);
6f713d18144ce8 Hari Bathini 2019-09-11 405
6f713d18144ce8 Hari Bathini 2019-09-11 406 phdr->p_paddr = cpu_to_be64(paddr);
6f713d18144ce8 Hari Bathini 2019-09-11 407 phdr->p_vaddr = cpu_to_be64(opal_base_addr + paddr);
6f713d18144ce8 Hari Bathini 2019-09-11 @408 phdr->p_filesz = phdr->p_memsz =
6f713d18144ce8 Hari Bathini 2019-09-11 409 cpu_to_be64(oc_conf->ptload_size[i]);
6f713d18144ce8 Hari Bathini 2019-09-11 410 phdr->p_offset = cpu_to_be64(opalcore_off);
6f713d18144ce8 Hari Bathini 2019-09-11 411
6f713d18144ce8 Hari Bathini 2019-09-11 412 count++;
6f713d18144ce8 Hari Bathini 2019-09-11 413 opalcore_off += oc_conf->ptload_size[i];
6f713d18144ce8 Hari Bathini 2019-09-11 414 paddr += oc_conf->ptload_size[i];
6f713d18144ce8 Hari Bathini 2019-09-11 415 }
6f713d18144ce8 Hari Bathini 2019-09-11 416
6f713d18144ce8 Hari Bathini 2019-09-11 417 elf->e_phnum = cpu_to_be16(count);
6f713d18144ce8 Hari Bathini 2019-09-11 418
6f713d18144ce8 Hari Bathini 2019-09-11 419 bufp = (char *)opalcore_append_cpu_notes((Elf64_Word *)bufp);
6f713d18144ce8 Hari Bathini 2019-09-11 420 bufp = (char *)auxv_to_elf64_notes((Elf64_Word *)bufp, opal_boot_entry);
6f713d18144ce8 Hari Bathini 2019-09-11 421
6f713d18144ce8 Hari Bathini 2019-09-11 422 oc_conf->opalcore_size = opalcore_off;
6f713d18144ce8 Hari Bathini 2019-09-11 423 return 0;
6f713d18144ce8 Hari Bathini 2019-09-11 424 }
6f713d18144ce8 Hari Bathini 2019-09-11 425
6f713d18144ce8 Hari Bathini 2019-09-11 426 static void opalcore_cleanup(void)
6f713d18144ce8 Hari Bathini 2019-09-11 427 {
6f713d18144ce8 Hari Bathini 2019-09-11 428 if (oc_conf == NULL)
6f713d18144ce8 Hari Bathini 2019-09-11 429 return;
6f713d18144ce8 Hari Bathini 2019-09-11 430
6f713d18144ce8 Hari Bathini 2019-09-11 431 /* Remove OPAL core sysfs file */
8852c07a881b0a Sourabh Jain 2019-12-11 432 sysfs_remove_bin_file(mpipl_kobj, &opal_core_attr);
6f713d18144ce8 Hari Bathini 2019-09-11 433 oc_conf->ptload_phdr = NULL;
6f713d18144ce8 Hari Bathini 2019-09-11 434 oc_conf->ptload_cnt = 0;
6f713d18144ce8 Hari Bathini 2019-09-11 435
6f713d18144ce8 Hari Bathini 2019-09-11 436 /* free the buffer used for setting up OPAL core */
6f713d18144ce8 Hari Bathini 2019-09-11 437 if (oc_conf->opalcorebuf) {
6f713d18144ce8 Hari Bathini 2019-09-11 438 void *end = (void *)((u64)oc_conf->opalcorebuf +
6f713d18144ce8 Hari Bathini 2019-09-11 439 oc_conf->opalcorebuf_sz);
6f713d18144ce8 Hari Bathini 2019-09-11 440
6f713d18144ce8 Hari Bathini 2019-09-11 441 free_reserved_area(oc_conf->opalcorebuf, end, -1, NULL);
6f713d18144ce8 Hari Bathini 2019-09-11 442 oc_conf->opalcorebuf = NULL;
6f713d18144ce8 Hari Bathini 2019-09-11 443 oc_conf->opalcorebuf_sz = 0;
6f713d18144ce8 Hari Bathini 2019-09-11 444 }
6f713d18144ce8 Hari Bathini 2019-09-11 445
6f713d18144ce8 Hari Bathini 2019-09-11 446 kfree(oc_conf);
6f713d18144ce8 Hari Bathini 2019-09-11 447 oc_conf = NULL;
6f713d18144ce8 Hari Bathini 2019-09-11 448 }
6f713d18144ce8 Hari Bathini 2019-09-11 449 __exitcall(opalcore_cleanup);
6f713d18144ce8 Hari Bathini 2019-09-11 450
6f713d18144ce8 Hari Bathini 2019-09-11 451 static void __init opalcore_config_init(void)
6f713d18144ce8 Hari Bathini 2019-09-11 452 {
6f713d18144ce8 Hari Bathini 2019-09-11 453 u32 idx, cpu_data_version;
6f713d18144ce8 Hari Bathini 2019-09-11 454 struct device_node *np;
6f713d18144ce8 Hari Bathini 2019-09-11 455 const __be32 *prop;
6f713d18144ce8 Hari Bathini 2019-09-11 456 u64 addr = 0;
6f713d18144ce8 Hari Bathini 2019-09-11 457 int i, ret;
6f713d18144ce8 Hari Bathini 2019-09-11 458
6f713d18144ce8 Hari Bathini 2019-09-11 459 np = of_find_node_by_path("/ibm,opal/dump");
6f713d18144ce8 Hari Bathini 2019-09-11 460 if (np == NULL)
6f713d18144ce8 Hari Bathini 2019-09-11 461 return;
6f713d18144ce8 Hari Bathini 2019-09-11 462
6f713d18144ce8 Hari Bathini 2019-09-11 463 if (!of_device_is_compatible(np, "ibm,opal-dump")) {
6f713d18144ce8 Hari Bathini 2019-09-11 464 pr_warn("Support missing for this f/w version!\n");
6f713d18144ce8 Hari Bathini 2019-09-11 465 return;
6f713d18144ce8 Hari Bathini 2019-09-11 466 }
6f713d18144ce8 Hari Bathini 2019-09-11 467
6f713d18144ce8 Hari Bathini 2019-09-11 468 /* Check if dump has been initiated on last reboot */
6f713d18144ce8 Hari Bathini 2019-09-11 469 prop = of_get_property(np, "mpipl-boot", NULL);
6f713d18144ce8 Hari Bathini 2019-09-11 470 if (!prop) {
6f713d18144ce8 Hari Bathini 2019-09-11 471 of_node_put(np);
6f713d18144ce8 Hari Bathini 2019-09-11 472 return;
6f713d18144ce8 Hari Bathini 2019-09-11 473 }
6f713d18144ce8 Hari Bathini 2019-09-11 474
6f713d18144ce8 Hari Bathini 2019-09-11 475 /* Get OPAL metadata */
6f713d18144ce8 Hari Bathini 2019-09-11 @476 ret = opal_mpipl_query_tag(OPAL_MPIPL_TAG_OPAL, &addr);
6f713d18144ce8 Hari Bathini 2019-09-11 477 if ((ret != OPAL_SUCCESS) || !addr) {
6f713d18144ce8 Hari Bathini 2019-09-11 478 pr_err("Failed to get OPAL metadata (%d)\n", ret);
6f713d18144ce8 Hari Bathini 2019-09-11 479 goto error_out;
6f713d18144ce8 Hari Bathini 2019-09-11 480 }
6f713d18144ce8 Hari Bathini 2019-09-11 481
6f713d18144ce8 Hari Bathini 2019-09-11 482 addr = be64_to_cpu(addr);
6f713d18144ce8 Hari Bathini 2019-09-11 483 pr_debug("OPAL metadata addr: %llx\n", addr);
6f713d18144ce8 Hari Bathini 2019-09-11 484 opalc_metadata = __va(addr);
6f713d18144ce8 Hari Bathini 2019-09-11 485
6f713d18144ce8 Hari Bathini 2019-09-11 486 /* Get OPAL CPU metadata */
6f713d18144ce8 Hari Bathini 2019-09-11 487 ret = opal_mpipl_query_tag(OPAL_MPIPL_TAG_CPU, &addr);
6f713d18144ce8 Hari Bathini 2019-09-11 488 if ((ret != OPAL_SUCCESS) || !addr) {
6f713d18144ce8 Hari Bathini 2019-09-11 489 pr_err("Failed to get OPAL CPU metadata (%d)\n", ret);
6f713d18144ce8 Hari Bathini 2019-09-11 490 goto error_out;
6f713d18144ce8 Hari Bathini 2019-09-11 491 }
6f713d18144ce8 Hari Bathini 2019-09-11 492
6f713d18144ce8 Hari Bathini 2019-09-11 493 addr = be64_to_cpu(addr);
6f713d18144ce8 Hari Bathini 2019-09-11 494 pr_debug("CPU metadata addr: %llx\n", addr);
6f713d18144ce8 Hari Bathini 2019-09-11 495 opalc_cpu_metadata = __va(addr);
6f713d18144ce8 Hari Bathini 2019-09-11 496
6f713d18144ce8 Hari Bathini 2019-09-11 497 /* Allocate memory for config buffer */
6f713d18144ce8 Hari Bathini 2019-09-11 498 oc_conf = kzalloc(sizeof(struct opalcore_config), GFP_KERNEL);
6f713d18144ce8 Hari Bathini 2019-09-11 499 if (oc_conf == NULL)
6f713d18144ce8 Hari Bathini 2019-09-11 500 goto error_out;
6f713d18144ce8 Hari Bathini 2019-09-11 501
6f713d18144ce8 Hari Bathini 2019-09-11 502 /* Parse OPAL metadata */
6f713d18144ce8 Hari Bathini 2019-09-11 503 if (opalc_metadata->version != OPAL_MPIPL_VERSION) {
6f713d18144ce8 Hari Bathini 2019-09-11 504 pr_warn("Supported OPAL metadata version: %u, found: %u!\n",
6f713d18144ce8 Hari Bathini 2019-09-11 505 OPAL_MPIPL_VERSION, opalc_metadata->version);
6f713d18144ce8 Hari Bathini 2019-09-11 506 pr_warn("WARNING: F/W using newer OPAL metadata format!!\n");
6f713d18144ce8 Hari Bathini 2019-09-11 507 }
6f713d18144ce8 Hari Bathini 2019-09-11 508
6f713d18144ce8 Hari Bathini 2019-09-11 509 oc_conf->ptload_cnt = 0;
6f713d18144ce8 Hari Bathini 2019-09-11 510 idx = be32_to_cpu(opalc_metadata->region_cnt);
6f713d18144ce8 Hari Bathini 2019-09-11 511 if (idx > MAX_PT_LOAD_CNT) {
6f713d18144ce8 Hari Bathini 2019-09-11 512 pr_warn("WARNING: OPAL regions count (%d) adjusted to limit (%d)",
8ec5cb12cd957e Qinglang Miao 2020-09-16 513 idx, MAX_PT_LOAD_CNT);
6f713d18144ce8 Hari Bathini 2019-09-11 514 idx = MAX_PT_LOAD_CNT;
6f713d18144ce8 Hari Bathini 2019-09-11 515 }
6f713d18144ce8 Hari Bathini 2019-09-11 516 for (i = 0; i < idx; i++) {
6f713d18144ce8 Hari Bathini 2019-09-11 517 oc_conf->ptload_addr[oc_conf->ptload_cnt] =
6f713d18144ce8 Hari Bathini 2019-09-11 518 be64_to_cpu(opalc_metadata->region[i].dest);
6f713d18144ce8 Hari Bathini 2019-09-11 519 oc_conf->ptload_size[oc_conf->ptload_cnt++] =
6f713d18144ce8 Hari Bathini 2019-09-11 520 be64_to_cpu(opalc_metadata->region[i].size);
6f713d18144ce8 Hari Bathini 2019-09-11 521 }
6f713d18144ce8 Hari Bathini 2019-09-11 522 oc_conf->ptload_cnt = i;
6f713d18144ce8 Hari Bathini 2019-09-11 523 oc_conf->crashing_cpu = be32_to_cpu(opalc_metadata->crashing_pir);
6f713d18144ce8 Hari Bathini 2019-09-11 524
6f713d18144ce8 Hari Bathini 2019-09-11 525 if (!oc_conf->ptload_cnt) {
6f713d18144ce8 Hari Bathini 2019-09-11 526 pr_err("OPAL memory regions not found\n");
6f713d18144ce8 Hari Bathini 2019-09-11 527 goto error_out;
6f713d18144ce8 Hari Bathini 2019-09-11 528 }
6f713d18144ce8 Hari Bathini 2019-09-11 529
6f713d18144ce8 Hari Bathini 2019-09-11 530 /* Parse OPAL CPU metadata */
6f713d18144ce8 Hari Bathini 2019-09-11 531 cpu_data_version = be32_to_cpu(opalc_cpu_metadata->cpu_data_version);
6f713d18144ce8 Hari Bathini 2019-09-11 532 if (cpu_data_version != HDAT_FADUMP_CPU_DATA_VER) {
6f713d18144ce8 Hari Bathini 2019-09-11 533 pr_warn("Supported CPU data version: %u, found: %u!\n",
6f713d18144ce8 Hari Bathini 2019-09-11 534 HDAT_FADUMP_CPU_DATA_VER, cpu_data_version);
6f713d18144ce8 Hari Bathini 2019-09-11 535 pr_warn("WARNING: F/W using newer CPU state data format!!\n");
6f713d18144ce8 Hari Bathini 2019-09-11 536 }
6f713d18144ce8 Hari Bathini 2019-09-11 537
6f713d18144ce8 Hari Bathini 2019-09-11 538 addr = be64_to_cpu(opalc_cpu_metadata->region[0].dest);
6f713d18144ce8 Hari Bathini 2019-09-11 539 if (!addr) {
6f713d18144ce8 Hari Bathini 2019-09-11 540 pr_err("CPU state data not found!\n");
6f713d18144ce8 Hari Bathini 2019-09-11 541 goto error_out;
6f713d18144ce8 Hari Bathini 2019-09-11 542 }
6f713d18144ce8 Hari Bathini 2019-09-11 543 oc_conf->cpu_state_destination_vaddr = (u64)__va(addr);
6f713d18144ce8 Hari Bathini 2019-09-11 544
6f713d18144ce8 Hari Bathini 2019-09-11 545 oc_conf->cpu_state_data_size =
6f713d18144ce8 Hari Bathini 2019-09-11 546 be64_to_cpu(opalc_cpu_metadata->region[0].size);
6f713d18144ce8 Hari Bathini 2019-09-11 547 oc_conf->cpu_state_entry_size =
6f713d18144ce8 Hari Bathini 2019-09-11 548 be32_to_cpu(opalc_cpu_metadata->cpu_data_size);
6f713d18144ce8 Hari Bathini 2019-09-11 549
6f713d18144ce8 Hari Bathini 2019-09-11 550 if ((oc_conf->cpu_state_entry_size == 0) ||
6f713d18144ce8 Hari Bathini 2019-09-11 551 (oc_conf->cpu_state_entry_size > oc_conf->cpu_state_data_size)) {
6f713d18144ce8 Hari Bathini 2019-09-11 552 pr_err("CPU state data is invalid.\n");
6f713d18144ce8 Hari Bathini 2019-09-11 553 goto error_out;
6f713d18144ce8 Hari Bathini 2019-09-11 554 }
6f713d18144ce8 Hari Bathini 2019-09-11 555 oc_conf->num_cpus = (oc_conf->cpu_state_data_size /
6f713d18144ce8 Hari Bathini 2019-09-11 556 oc_conf->cpu_state_entry_size);
6f713d18144ce8 Hari Bathini 2019-09-11 557
6f713d18144ce8 Hari Bathini 2019-09-11 558 of_node_put(np);
6f713d18144ce8 Hari Bathini 2019-09-11 559 return;
6f713d18144ce8 Hari Bathini 2019-09-11 560
6f713d18144ce8 Hari Bathini 2019-09-11 561 error_out:
6f713d18144ce8 Hari Bathini 2019-09-11 562 pr_err("Could not export /sys/firmware/opal/core\n");
6f713d18144ce8 Hari Bathini 2019-09-11 563 opalcore_cleanup();
6f713d18144ce8 Hari Bathini 2019-09-11 564 of_node_put(np);
6f713d18144ce8 Hari Bathini 2019-09-11 565 }
6f713d18144ce8 Hari Bathini 2019-09-11 566

:::::: The code at line 476 was first introduced by commit
:::::: 6f713d18144ce86c9f01cdf64222d6339e26129e powerpc/opalcore: export /sys/firmware/opal/core for analysing opal crashes

:::::: TO: Hari Bathini <hbathini@linux.vnet.ibm.com>
:::::: CC: Michael Ellerman <mpe@ellerman.id.au>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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