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authorIngo Molnar <mingo@elte.hu>2009-03-31 07:53:43 -0400
committerIngo Molnar <mingo@elte.hu>2009-03-31 07:53:43 -0400
commit7bee946358c3cb957d4aa648fc5ab3cad0b232d0 (patch)
tree693061ebde2abc35ecc846e5084630d7225aaaff /drivers/acpi/osl.c
parentd820ac4c2fa881079e6b689d2098adce337558ae (diff)
parent15f7176eb1cccec0a332541285ee752b935c1c85 (diff)
Merge branch 'linus' into locking-for-linus
Conflicts: lib/Kconfig.debug
Diffstat (limited to 'drivers/acpi/osl.c')
-rw-r--r--drivers/acpi/osl.c63
1 files changed, 10 insertions, 53 deletions
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index b3193ec0a2ef..eb8980d67368 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -272,14 +272,21 @@ acpi_os_map_memory(acpi_physical_address phys, acpi_size size)
272} 272}
273EXPORT_SYMBOL_GPL(acpi_os_map_memory); 273EXPORT_SYMBOL_GPL(acpi_os_map_memory);
274 274
275void acpi_os_unmap_memory(void __iomem * virt, acpi_size size) 275void __ref acpi_os_unmap_memory(void __iomem *virt, acpi_size size)
276{ 276{
277 if (acpi_gbl_permanent_mmap) { 277 if (acpi_gbl_permanent_mmap)
278 iounmap(virt); 278 iounmap(virt);
279 } 279 else
280 __acpi_unmap_table(virt, size);
280} 281}
281EXPORT_SYMBOL_GPL(acpi_os_unmap_memory); 282EXPORT_SYMBOL_GPL(acpi_os_unmap_memory);
282 283
284void __init early_acpi_os_unmap_memory(void __iomem *virt, acpi_size size)
285{
286 if (!acpi_gbl_permanent_mmap)
287 __acpi_unmap_table(virt, size);
288}
289
283#ifdef ACPI_FUTURE_USAGE 290#ifdef ACPI_FUTURE_USAGE
284acpi_status 291acpi_status
285acpi_os_get_physical_address(void *virt, acpi_physical_address * phys) 292acpi_os_get_physical_address(void *virt, acpi_physical_address * phys)
@@ -1317,54 +1324,6 @@ acpi_os_validate_interface (char *interface)
1317 return AE_SUPPORT; 1324 return AE_SUPPORT;
1318} 1325}
1319 1326
1320#ifdef CONFIG_X86
1321
1322struct aml_port_desc {
1323 uint start;
1324 uint end;
1325 char* name;
1326 char warned;
1327};
1328
1329static struct aml_port_desc aml_invalid_port_list[] = {
1330 {0x20, 0x21, "PIC0", 0},
1331 {0xA0, 0xA1, "PIC1", 0},
1332 {0x4D0, 0x4D1, "ELCR", 0}
1333};
1334
1335/*
1336 * valid_aml_io_address()
1337 *
1338 * if valid, return true
1339 * else invalid, warn once, return false
1340 */
1341static bool valid_aml_io_address(uint address, uint length)
1342{
1343 int i;
1344 int entries = sizeof(aml_invalid_port_list) / sizeof(struct aml_port_desc);
1345
1346 for (i = 0; i < entries; ++i) {
1347 if ((address >= aml_invalid_port_list[i].start &&
1348 address <= aml_invalid_port_list[i].end) ||
1349 (address + length >= aml_invalid_port_list[i].start &&
1350 address + length <= aml_invalid_port_list[i].end))
1351 {
1352 if (!aml_invalid_port_list[i].warned)
1353 {
1354 printk(KERN_ERR "ACPI: Denied BIOS AML access"
1355 " to invalid port 0x%x+0x%x (%s)\n",
1356 address, length,
1357 aml_invalid_port_list[i].name);
1358 aml_invalid_port_list[i].warned = 1;
1359 }
1360 return false; /* invalid */
1361 }
1362 }
1363 return true; /* valid */
1364}
1365#else
1366static inline bool valid_aml_io_address(uint address, uint length) { return true; }
1367#endif
1368/****************************************************************************** 1327/******************************************************************************
1369 * 1328 *
1370 * FUNCTION: acpi_os_validate_address 1329 * FUNCTION: acpi_os_validate_address
@@ -1394,8 +1353,6 @@ acpi_os_validate_address (
1394 1353
1395 switch (space_id) { 1354 switch (space_id) {
1396 case ACPI_ADR_SPACE_SYSTEM_IO: 1355 case ACPI_ADR_SPACE_SYSTEM_IO:
1397 if (!valid_aml_io_address(address, length))
1398 return AE_AML_ILLEGAL_ADDRESS;
1399 case ACPI_ADR_SPACE_SYSTEM_MEMORY: 1356 case ACPI_ADR_SPACE_SYSTEM_MEMORY:
1400 /* Only interference checks against SystemIO and SytemMemory 1357 /* Only interference checks against SystemIO and SytemMemory
1401 are needed */ 1358 are needed */