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Date: Wed, 23 Sep 2009 23:30:52 +0200
From: Ingo Molnar <mingo@...e.hu>
To: Len Brown <lenb@...nel.org>, Bob Moore <robert.moore@...el.com>,
Lin Ming <ming.m.lin@...el.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
Andrew Morton <akpm@...ux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
linux-acpi@...r.kernel.org
Subject: [origin tree boot crash] NULL pointer dereference, IP:
[<ffffffff82b07130>] ibm_find_acpi_device+0x5c/0xf5
> commit 15b8dd53f5ffaf8e2d9095c423f713423f576c0f
> Date: Mon Jun 29 13:39:29 2009 +0800
>
> ACPICA: Major update for acpi_get_object_info external interface
this one is causing boot crashes in -tip testing:
acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
initcall acpiphp_init+0x0/0x83 returned -19 after 16410 usecs
calling ibm_acpiphp_init+0x0/0x190 @ 1
BUG: unable to handle kernel NULL pointer dereference at 0000000000000003
IP: [<ffffffff82b07130>] ibm_find_acpi_device+0x5c/0xf5
PGD 0
Oops: 0002 [#1] SMP DEBUG_PAGEALLOC
last sysfs file:
CPU 0
Pid: 1, comm: swapper Not tainted 2.6.31-tip #16786 System Product Name
RIP: 0010:[<ffffffff82b07130>] [<ffffffff82b07130>] ibm_find_acpi_device+0x5c/0xf5
RSP: 0018:ffff88003f2d1d60 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88003f2d1d68 RSI: 00000000000001e4 RDI: 0000000000000000
RBP: ffff88003f2d1d90 R08: 0000000000000001 R09: ffffffff824b645b
R10: 000000002d0ef63b R11: ffff88003f2d1a80 R12: ffff88003fa780d0
R13: ffffffff83940dc8 R14: 0000000000000001 R15: ffffffff83942e10
FS: 0000000000000000(0000) GS:ffff880005800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000000000000003 CR3: 0000000001001000 CR4: 00000000000006b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process swapper (pid: 1, threadinfo ffff88003f2d0000, task ffff88003f2c8000)
Stack:
ffff88003f2c8000 ffff88003cfbb690 000000002d0ef63b 0000000000000000
<0> 0000000000000000 ffff88003fa780d0 ffff88003f2d1e10 ffffffff8156b6b6
<0> 0000000000000001 0000000100000000 0000000000000000 ffffffff83940dc8
Call Trace:
[<ffffffff8156b6b6>] acpi_ns_walk_namespace+0x11d/0x234
[<ffffffff82b070d4>] ? ibm_find_acpi_device+0x0/0xf5
[<ffffffff8157b159>] ? acpi_ut_acquire_mutex+0xd9/0x12e
[<ffffffff82b070d4>] ? ibm_find_acpi_device+0x0/0xf5
[<ffffffff81566dfa>] acpi_walk_namespace+0x105/0x162
[<ffffffff81d067bf>] ? acpi_pm_read+0xd/0x3e
[<ffffffff82b06f44>] ? ibm_acpiphp_init+0x0/0x190
[<ffffffff82b06fa8>] ibm_acpiphp_init+0x64/0x190
[<ffffffff810090b4>] do_one_initcall+0x82/0x1a6
[<ffffffff810edecc>] ? init_irq_proc+0x77/0x9a
[<ffffffff82ad8975>] do_basic_setup+0x5e/0x87
[<ffffffff82ad8a26>] kernel_init+0x88/0xe2
[<ffffffff8103ddfa>] child_rip+0xa/0x20
[<ffffffff8103d7bc>] ? restore_args+0x0/0x30
[<ffffffff82ad899e>] ? kernel_init+0x0/0xe2
[<ffffffff8103ddf0>] ? child_rip+0x0/0x20
Code: 48 c7 c2 c0 7b 0b 82 48 c7 c6 95 39 4a 82 48 c7 c7 1a 3c 4a 82 31 c0 e8 02 84 4b ff 31 c0 e9 82 00 00 00 48 8b 45 d8 48 8b 40 30 <c6> 40 03 00 48 8b 45 d8 83 78 18 00 74 5f f6 40 0d 04 74 59 48
RIP [<ffffffff82b07130>] ibm_find_acpi_device+0x5c/0xf5
RSP <ffff88003f2d1d60>
CR2: 0000000000000003
---[ end trace 5a5d197966b56a2e ]---
Kernel panic - not syncing: Fatal exception
Pid: 1, comm: swapper Tainted: G D 2.6.31-tip #16786
This is a huge commit which doesnt revert cleanly. I took a stab at it,
see that revert below - it didnt help.
Obviously we'd want a fix instead of that - i'm willing to test any
patch.
oh. I should have looked at the crash site before bisecting and
reverting. That sure looks like an unconverted acpi_get_object_info()
call, right?
Ingo
-------------->
>From 2773b5bd6e64ec04dfbc123841bf6f4c5e58dea5 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@...e.hu>
Date: Wed, 23 Sep 2009 23:22:49 +0200
Subject: [PATCH] Revert "ACPICA: Major update for acpi_get_object_info external interface"
This reverts commit 15b8dd53f5ffaf8e2d9095c423f713423f576c0f.
Conflicts:
drivers/acpi/scan.c
Causes this crash:
acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
initcall acpiphp_init+0x0/0x83 returned -19 after 16410 usecs
calling ibm_acpiphp_init+0x0/0x190 @ 1
BUG: unable to handle kernel NULL pointer dereference at 0000000000000003
IP: [<ffffffff82b07130>] ibm_find_acpi_device+0x5c/0xf5
PGD 0
Oops: 0002 [#1] SMP DEBUG_PAGEALLOC
last sysfs file:
CPU 0
Pid: 1, comm: swapper Not tainted 2.6.31-tip #16786 System Product Name
RIP: 0010:[<ffffffff82b07130>] [<ffffffff82b07130>] ibm_find_acpi_device+0x5c/0xf5
RSP: 0018:ffff88003f2d1d60 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88003f2d1d68 RSI: 00000000000001e4 RDI: 0000000000000000
RBP: ffff88003f2d1d90 R08: 0000000000000001 R09: ffffffff824b645b
R10: 000000002d0ef63b R11: ffff88003f2d1a80 R12: ffff88003fa780d0
R13: ffffffff83940dc8 R14: 0000000000000001 R15: ffffffff83942e10
FS: 0000000000000000(0000) GS:ffff880005800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000000000000003 CR3: 0000000001001000 CR4: 00000000000006b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process swapper (pid: 1, threadinfo ffff88003f2d0000, task ffff88003f2c8000)
Stack:
ffff88003f2c8000 ffff88003cfbb690 000000002d0ef63b 0000000000000000
<0> 0000000000000000 ffff88003fa780d0 ffff88003f2d1e10 ffffffff8156b6b6
<0> 0000000000000001 0000000100000000 0000000000000000 ffffffff83940dc8
Call Trace:
[<ffffffff8156b6b6>] acpi_ns_walk_namespace+0x11d/0x234
[<ffffffff82b070d4>] ? ibm_find_acpi_device+0x0/0xf5
[<ffffffff8157b159>] ? acpi_ut_acquire_mutex+0xd9/0x12e
[<ffffffff82b070d4>] ? ibm_find_acpi_device+0x0/0xf5
[<ffffffff81566dfa>] acpi_walk_namespace+0x105/0x162
[<ffffffff81d067bf>] ? acpi_pm_read+0xd/0x3e
[<ffffffff82b06f44>] ? ibm_acpiphp_init+0x0/0x190
[<ffffffff82b06fa8>] ibm_acpiphp_init+0x64/0x190
[<ffffffff810090b4>] do_one_initcall+0x82/0x1a6
[<ffffffff810edecc>] ? init_irq_proc+0x77/0x9a
[<ffffffff82ad8975>] do_basic_setup+0x5e/0x87
[<ffffffff82ad8a26>] kernel_init+0x88/0xe2
[<ffffffff8103ddfa>] child_rip+0xa/0x20
[<ffffffff8103d7bc>] ? restore_args+0x0/0x30
[<ffffffff82ad899e>] ? kernel_init+0x0/0xe2
[<ffffffff8103ddf0>] ? child_rip+0x0/0x20
Code: 48 c7 c2 c0 7b 0b 82 48 c7 c6 95 39 4a 82 48 c7 c7 1a 3c 4a 82 31 c0 e8 02 84 4b ff 31 c0 e9 82 00 00 00 48 8b 45 d8 48 8b 40 30 <c6> 40 03 00 48 8b 45 d8 83 78 18 00 74 5f f6 40 0d 04 74 59 48
RIP [<ffffffff82b07130>] ibm_find_acpi_device+0x5c/0xf5
RSP <ffff88003f2d1d60>
CR2: 0000000000000003
---[ end trace 5a5d197966b56a2e ]---
Kernel panic - not syncing: Fatal exception
Pid: 1, comm: swapper Tainted: G D 2.6.31-tip #16786
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
arch/ia64/hp/common/sba_iommu.c | 7 +-
drivers/acpi/acpi_memhotplug.c | 11 +-
drivers/acpi/acpica/Makefile | 2 +-
drivers/acpi/acpica/acconfig.h | 5 -
drivers/acpi/acpica/acglobal.h | 3 +-
drivers/acpi/acpica/acinterp.h | 4 +-
drivers/acpi/acpica/acutils.h | 24 +--
drivers/acpi/acpica/evrgnini.c | 45 ++++-
drivers/acpi/acpica/exutils.c | 53 ++----
drivers/acpi/acpica/nsdumpdv.c | 7 +-
drivers/acpi/acpica/nsxfeval.c | 23 +--
drivers/acpi/acpica/nsxfname.c | 237 +++++-----------------
drivers/acpi/acpica/uteval.c | 375 +++++++++++++++++++++++++++++++----
drivers/acpi/acpica/utglobal.c | 10 +-
drivers/acpi/acpica/utids.c | 382 ------------------------------------
drivers/acpi/acpica/utmisc.c | 28 ---
drivers/acpi/container.c | 11 +-
drivers/acpi/dock.c | 8 +-
drivers/acpi/glue.c | 6 +-
drivers/acpi/scan.c | 151 +++++----------
drivers/char/agp/hp-agp.c | 9 +-
drivers/ide/ide-acpi.c | 5 +-
drivers/pci/hotplug/acpiphp_ibm.c | 12 +-
drivers/platform/x86/sony-laptop.c | 7 +-
drivers/pnp/pnpacpi/core.c | 6 +-
include/acpi/acpi_bus.h | 8 +-
include/acpi/acpixf.h | 3 +-
include/acpi/actypes.h | 87 ++++----
28 files changed, 628 insertions(+), 901 deletions(-)
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index 674a837..8cfb001 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -2026,21 +2026,24 @@ acpi_sba_ioc_add(struct acpi_device *device)
struct ioc *ioc;
acpi_status status;
u64 hpa, length;
+ struct acpi_buffer buffer;
struct acpi_device_info *dev_info;
status = hp_acpi_csr_space(device->handle, &hpa, &length);
if (ACPI_FAILURE(status))
return 1;
- status = acpi_get_object_info(device->handle, &dev_info);
+ buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+ status = acpi_get_object_info(device->handle, &buffer);
if (ACPI_FAILURE(status))
return 1;
+ dev_info = buffer.pointer;
/*
* For HWP0001, only SBA appears in ACPI namespace. It encloses the PCI
* root bridges, and its CSR space includes the IOC function.
*/
- if (strncmp("HWP0001", dev_info->hardware_id.string, 7) == 0) {
+ if (strncmp("HWP0001", dev_info->hardware_id.value, 7) == 0) {
hpa += ZX1_IOC_OFFSET;
/* zx1 based systems default to kernel page size iommu pages */
if (!iovp_shift)
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index 28ccdbc..ad9e60a 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -469,23 +469,26 @@ static acpi_status is_memory_device(acpi_handle handle)
{
char *hardware_id;
acpi_status status;
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
struct acpi_device_info *info;
- status = acpi_get_object_info(handle, &info);
+
+ status = acpi_get_object_info(handle, &buffer);
if (ACPI_FAILURE(status))
return status;
+ info = buffer.pointer;
if (!(info->valid & ACPI_VALID_HID)) {
- kfree(info);
+ kfree(buffer.pointer);
return AE_ERROR;
}
- hardware_id = info->hardware_id.string;
+ hardware_id = info->hardware_id.value;
if ((hardware_id == NULL) ||
(strcmp(hardware_id, ACPI_MEMORY_DEVICE_HID)))
status = AE_ERROR;
- kfree(info);
+ kfree(buffer.pointer);
return status;
}
diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile
index e7973bc..0ff924e 100644
--- a/drivers/acpi/acpica/Makefile
+++ b/drivers/acpi/acpica/Makefile
@@ -44,4 +44,4 @@ acpi-y += tbxface.o tbinstal.o tbutils.o tbfind.o tbfadt.o tbxfroot.o
acpi-y += utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \
utcopy.o utdelete.o utglobal.o utmath.o utobject.o \
- utstate.o utmutex.o utobject.o utresrc.o utlock.o utids.o
+ utstate.o utmutex.o utobject.o utresrc.o utlock.o
diff --git a/drivers/acpi/acpica/acconfig.h b/drivers/acpi/acpica/acconfig.h
index 8e679ef..581be4b 100644
--- a/drivers/acpi/acpica/acconfig.h
+++ b/drivers/acpi/acpica/acconfig.h
@@ -204,11 +204,6 @@
#define ACPI_SMBUS_BUFFER_SIZE 34
#define ACPI_IPMI_BUFFER_SIZE 66
-/* _sx_d and _sx_w control methods */
-
-#define ACPI_NUM_sx_d_METHODS 4
-#define ACPI_NUM_sx_w_METHODS 5
-
/******************************************************************************
*
* ACPI AML Debugger
diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index 29ba66d..91c6cb1 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -265,8 +265,7 @@ ACPI_EXTERN u8 acpi_gbl_osi_data;
extern u8 acpi_gbl_shutdown;
extern u32 acpi_gbl_startup_flags;
extern const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT];
-extern const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS];
-extern const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS];
+extern const char *acpi_gbl_highest_dstate_names[4];
extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES];
extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS];
diff --git a/drivers/acpi/acpica/acinterp.h b/drivers/acpi/acpica/acinterp.h
index 5db9f29..e8db7a3 100644
--- a/drivers/acpi/acpica/acinterp.h
+++ b/drivers/acpi/acpica/acinterp.h
@@ -461,9 +461,9 @@ void acpi_ex_acquire_global_lock(u32 rule);
void acpi_ex_release_global_lock(u32 rule);
-void acpi_ex_eisa_id_to_string(char *dest, acpi_integer compressed_id);
+void acpi_ex_eisa_id_to_string(u32 numeric_id, char *out_string);
-void acpi_ex_integer_to_string(char *dest, acpi_integer value);
+void acpi_ex_unsigned_integer_to_string(acpi_integer value, char *out_string);
/*
* exregion - default op_region handlers
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index 863a264..14cc666 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -324,30 +324,26 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
acpi_status
acpi_ut_evaluate_numeric_object(char *object_name,
struct acpi_namespace_node *device_node,
- acpi_integer *value);
+ acpi_integer * address);
acpi_status
-acpi_ut_execute_STA(struct acpi_namespace_node *device_node, u32 *status_flags);
+acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
+ struct acpica_device_id *hid);
acpi_status
-acpi_ut_execute_power_methods(struct acpi_namespace_node *device_node,
- const char **method_names,
- u8 method_count, u8 *out_values);
+acpi_ut_execute_CID(struct acpi_namespace_node *device_node,
+ struct acpi_compatible_id_list **return_cid_list);
-/*
- * utids - device ID support
- */
acpi_status
-acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
- struct acpica_device_id **return_id);
+acpi_ut_execute_STA(struct acpi_namespace_node *device_node,
+ u32 * status_flags);
acpi_status
acpi_ut_execute_UID(struct acpi_namespace_node *device_node,
- struct acpica_device_id **return_id);
+ struct acpica_device_id *uid);
acpi_status
-acpi_ut_execute_CID(struct acpi_namespace_node *device_node,
- struct acpica_device_id_list **return_cid_list);
+acpi_ut_execute_sxds(struct acpi_namespace_node *device_node, u8 * highest);
/*
* utlock - reader/writer locks
@@ -449,8 +445,6 @@ acpi_ut_short_divide(acpi_integer in_dividend,
*/
const char *acpi_ut_validate_exception(acpi_status status);
-u8 acpi_ut_is_pci_root_bridge(char *id);
-
u8 acpi_ut_is_aml_table(struct acpi_table_header *table);
acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id);
diff --git a/drivers/acpi/acpica/evrgnini.c b/drivers/acpi/acpica/evrgnini.c
index cf29c49..284a7be 100644
--- a/drivers/acpi/acpica/evrgnini.c
+++ b/drivers/acpi/acpica/evrgnini.c
@@ -50,6 +50,8 @@
ACPI_MODULE_NAME("evrgnini")
/* Local prototypes */
+static u8 acpi_ev_match_pci_root_bridge(char *id);
+
static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node);
/*******************************************************************************
@@ -330,6 +332,37 @@ acpi_ev_pci_config_region_setup(acpi_handle handle,
/*******************************************************************************
*
+ * FUNCTION: acpi_ev_match_pci_root_bridge
+ *
+ * PARAMETERS: Id - The HID/CID in string format
+ *
+ * RETURN: TRUE if the Id is a match for a PCI/PCI-Express Root Bridge
+ *
+ * DESCRIPTION: Determine if the input ID is a PCI Root Bridge ID.
+ *
+ ******************************************************************************/
+
+static u8 acpi_ev_match_pci_root_bridge(char *id)
+{
+
+ /*
+ * Check if this is a PCI root.
+ * ACPI 3.0+: check for a PCI Express root also.
+ */
+ if (!(ACPI_STRNCMP(id,
+ PCI_ROOT_HID_STRING,
+ sizeof(PCI_ROOT_HID_STRING))) ||
+ !(ACPI_STRNCMP(id,
+ PCI_EXPRESS_ROOT_HID_STRING,
+ sizeof(PCI_EXPRESS_ROOT_HID_STRING)))) {
+ return (TRUE);
+ }
+
+ return (FALSE);
+}
+
+/*******************************************************************************
+ *
* FUNCTION: acpi_ev_is_pci_root_bridge
*
* PARAMETERS: Node - Device node being examined
@@ -344,10 +377,9 @@ acpi_ev_pci_config_region_setup(acpi_handle handle,
static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node)
{
acpi_status status;
- struct acpica_device_id *hid;
- struct acpica_device_id_list *cid;
+ struct acpica_device_id hid;
+ struct acpi_compatible_id_list *cid;
u32 i;
- u8 match;
/* Get the _HID and check for a PCI Root Bridge */
@@ -356,10 +388,7 @@ static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node)
return (FALSE);
}
- match = acpi_ut_is_pci_root_bridge(hid->string);
- ACPI_FREE(hid);
-
- if (match) {
+ if (acpi_ev_match_pci_root_bridge(hid.value)) {
return (TRUE);
}
@@ -373,7 +402,7 @@ static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node)
/* Check all _CIDs in the returned list */
for (i = 0; i < cid->count; i++) {
- if (acpi_ut_is_pci_root_bridge(cid->ids[i].string)) {
+ if (acpi_ev_match_pci_root_bridge(cid->id[i].value)) {
ACPI_FREE(cid);
return (TRUE);
}
diff --git a/drivers/acpi/acpica/exutils.c b/drivers/acpi/acpica/exutils.c
index 7d41f99..87730e9 100644
--- a/drivers/acpi/acpica/exutils.c
+++ b/drivers/acpi/acpica/exutils.c
@@ -358,67 +358,50 @@ static u32 acpi_ex_digits_needed(acpi_integer value, u32 base)
*
* FUNCTION: acpi_ex_eisa_id_to_string
*
- * PARAMETERS: compressed_id - EISAID to be converted
+ * PARAMETERS: numeric_id - EISA ID to be converted
* out_string - Where to put the converted string (8 bytes)
*
* RETURN: None
*
- * DESCRIPTION: Convert a numeric EISAID to string representation. Return
- * buffer must be large enough to hold the string. The string
- * returned is always exactly of length ACPI_EISAID_STRING_SIZE
- * (includes null terminator). The EISAID is always 32 bits.
+ * DESCRIPTION: Convert a numeric EISA ID to string representation
*
******************************************************************************/
-void acpi_ex_eisa_id_to_string(char *out_string, acpi_integer compressed_id)
+void acpi_ex_eisa_id_to_string(u32 numeric_id, char *out_string)
{
- u32 swapped_id;
+ u32 eisa_id;
ACPI_FUNCTION_ENTRY();
- /* The EISAID should be a 32-bit integer */
-
- if (compressed_id > ACPI_UINT32_MAX) {
- ACPI_WARNING((AE_INFO,
- "Expected EISAID is larger than 32 bits: 0x%8.8X%8.8X, truncating",
- ACPI_FORMAT_UINT64(compressed_id)));
- }
-
/* Swap ID to big-endian to get contiguous bits */
- swapped_id = acpi_ut_dword_byte_swap((u32)compressed_id);
+ eisa_id = acpi_ut_dword_byte_swap(numeric_id);
- /* First 3 bytes are uppercase letters. Next 4 bytes are hexadecimal */
-
- out_string[0] =
- (char)(0x40 + (((unsigned long)swapped_id >> 26) & 0x1F));
- out_string[1] = (char)(0x40 + ((swapped_id >> 21) & 0x1F));
- out_string[2] = (char)(0x40 + ((swapped_id >> 16) & 0x1F));
- out_string[3] = acpi_ut_hex_to_ascii_char((acpi_integer)swapped_id, 12);
- out_string[4] = acpi_ut_hex_to_ascii_char((acpi_integer)swapped_id, 8);
- out_string[5] = acpi_ut_hex_to_ascii_char((acpi_integer)swapped_id, 4);
- out_string[6] = acpi_ut_hex_to_ascii_char((acpi_integer)swapped_id, 0);
+ out_string[0] = (char)('@' + (((unsigned long)eisa_id >> 26) & 0x1f));
+ out_string[1] = (char)('@' + ((eisa_id >> 21) & 0x1f));
+ out_string[2] = (char)('@' + ((eisa_id >> 16) & 0x1f));
+ out_string[3] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 12);
+ out_string[4] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 8);
+ out_string[5] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 4);
+ out_string[6] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 0);
out_string[7] = 0;
}
/*******************************************************************************
*
- * FUNCTION: acpi_ex_integer_to_string
+ * FUNCTION: acpi_ex_unsigned_integer_to_string
*
- * PARAMETERS: out_string - Where to put the converted string. At least
- * 21 bytes are needed to hold the largest
- * possible 64-bit integer.
- * Value - Value to be converted
+ * PARAMETERS: Value - Value to be converted
+ * out_string - Where to put the converted string (8 bytes)
*
* RETURN: None, string
*
- * DESCRIPTION: Convert a 64-bit integer to decimal string representation.
- * Assumes string buffer is large enough to hold the string. The
- * largest string is (ACPI_MAX64_DECIMAL_DIGITS + 1).
+ * DESCRIPTION: Convert a number to string representation. Assumes string
+ * buffer is large enough to hold the string.
*
******************************************************************************/
-void acpi_ex_integer_to_string(char *out_string, acpi_integer value)
+void acpi_ex_unsigned_integer_to_string(acpi_integer value, char *out_string)
{
u32 count;
u32 digits_needed;
diff --git a/drivers/acpi/acpica/nsdumpdv.c b/drivers/acpi/acpica/nsdumpdv.c
index 0fe87f1..41994fe 100644
--- a/drivers/acpi/acpica/nsdumpdv.c
+++ b/drivers/acpi/acpica/nsdumpdv.c
@@ -70,6 +70,7 @@ static acpi_status
acpi_ns_dump_one_device(acpi_handle obj_handle,
u32 level, void *context, void **return_value)
{
+ struct acpi_buffer buffer;
struct acpi_device_info *info;
acpi_status status;
u32 i;
@@ -79,15 +80,17 @@ acpi_ns_dump_one_device(acpi_handle obj_handle,
status =
acpi_ns_dump_one_object(obj_handle, level, context, return_value);
- status = acpi_get_object_info(obj_handle, &info);
+ buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+ status = acpi_get_object_info(obj_handle, &buffer);
if (ACPI_SUCCESS(status)) {
+ info = buffer.pointer;
for (i = 0; i < level; i++) {
ACPI_DEBUG_PRINT_RAW((ACPI_DB_TABLES, " "));
}
ACPI_DEBUG_PRINT_RAW((ACPI_DB_TABLES,
" HID: %s, ADR: %8.8X%8.8X, Status: %X\n",
- info->hardware_id.string,
+ info->hardware_id.value,
ACPI_FORMAT_UINT64(info->address),
info->current_status));
ACPI_FREE(info);
diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c
index eaacbf4..18d0ca1 100644
--- a/drivers/acpi/acpica/nsxfeval.c
+++ b/drivers/acpi/acpica/nsxfeval.c
@@ -538,11 +538,10 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
acpi_status status;
struct acpi_namespace_node *node;
u32 flags;
- struct acpica_device_id *hid;
- struct acpica_device_id_list *cid;
+ struct acpica_device_id hid;
+ struct acpi_compatible_id_list *cid;
u32 i;
- u8 found;
- int no_match;
+ int found;
status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE(status)) {
@@ -586,14 +585,10 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
return (AE_CTRL_DEPTH);
}
- no_match = ACPI_STRCMP(hid->string, info->hid);
- ACPI_FREE(hid);
+ if (ACPI_STRNCMP(hid.value, info->hid, sizeof(hid.value)) != 0) {
+
+ /* Get the list of Compatible IDs */
- if (no_match) {
- /*
- * HID does not match, attempt match within the
- * list of Compatible IDs (CIDs)
- */
status = acpi_ut_execute_CID(node, &cid);
if (status == AE_NOT_FOUND) {
return (AE_OK);
@@ -605,8 +600,10 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
found = 0;
for (i = 0; i < cid->count; i++) {
- if (ACPI_STRCMP(cid->ids[i].string, info->hid)
- == 0) {
+ if (ACPI_STRNCMP(cid->id[i].value, info->hid,
+ sizeof(struct
+ acpi_compatible_id)) ==
+ 0) {
found = 1;
break;
}
diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c
index ddc84af..f23593d 100644
--- a/drivers/acpi/acpica/nsxfname.c
+++ b/drivers/acpi/acpica/nsxfname.c
@@ -51,11 +51,6 @@
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nsxfname")
-/* Local prototypes */
-static char *acpi_ns_copy_device_id(struct acpica_device_id *dest,
- struct acpica_device_id *source,
- char *string_area);
-
/******************************************************************************
*
* FUNCTION: acpi_get_handle
@@ -73,7 +68,6 @@ static char *acpi_ns_copy_device_id(struct acpica_device_id *dest,
* namespace handle.
*
******************************************************************************/
-
acpi_status
acpi_get_handle(acpi_handle parent,
acpi_string pathname, acpi_handle * ret_handle)
@@ -216,38 +210,10 @@ ACPI_EXPORT_SYMBOL(acpi_get_name)
/******************************************************************************
*
- * FUNCTION: acpi_ns_copy_device_id
- *
- * PARAMETERS: Dest - Pointer to the destination DEVICE_ID
- * Source - Pointer to the source DEVICE_ID
- * string_area - Pointer to where to copy the dest string
- *
- * RETURN: Pointer to the next string area
- *
- * DESCRIPTION: Copy a single DEVICE_ID, including the string data.
- *
- ******************************************************************************/
-static char *acpi_ns_copy_device_id(struct acpica_device_id *dest,
- struct acpica_device_id *source,
- char *string_area)
-{
- /* Create the destination DEVICE_ID */
-
- dest->string = string_area;
- dest->length = source->length;
-
- /* Copy actual string and return a pointer to the next string area */
-
- ACPI_MEMCPY(string_area, source->string, source->length);
- return (string_area + source->length);
-}
-
-/******************************************************************************
- *
* FUNCTION: acpi_get_object_info
*
- * PARAMETERS: Handle - Object Handle
- * return_buffer - Where the info is returned
+ * PARAMETERS: Handle - Object Handle
+ * Buffer - Where the info is returned
*
* RETURN: Status
*
@@ -255,37 +221,33 @@ static char *acpi_ns_copy_device_id(struct acpica_device_id *dest,
* namespace node and possibly by running several standard
* control methods (Such as in the case of a device.)
*
- * For Device and Processor objects, run the Device _HID, _UID, _CID, _STA,
- * _ADR, _sx_w, and _sx_d methods.
- *
- * Note: Allocates the return buffer, must be freed by the caller.
- *
******************************************************************************/
-
acpi_status
-acpi_get_object_info(acpi_handle handle,
- struct acpi_device_info **return_buffer)
+acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer)
{
+ acpi_status status;
struct acpi_namespace_node *node;
struct acpi_device_info *info;
- struct acpica_device_id_list *cid_list = NULL;
- struct acpica_device_id *hid = NULL;
- struct acpica_device_id *uid = NULL;
- char *next_id_string;
- acpi_object_type type;
- acpi_name name;
- u8 param_count = 0;
- u8 valid = 0;
- u32 info_size;
- u32 i;
- acpi_status status;
+ struct acpi_device_info *return_info;
+ struct acpi_compatible_id_list *cid_list = NULL;
+ acpi_size size;
/* Parameter validation */
- if (!handle || !return_buffer) {
+ if (!handle || !buffer) {
return (AE_BAD_PARAMETER);
}
+ status = acpi_ut_validate_buffer(buffer);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_device_info));
+ if (!info) {
+ return (AE_NO_MEMORY);
+ }
+
status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE(status)) {
goto cleanup;
@@ -294,91 +256,66 @@ acpi_get_object_info(acpi_handle handle,
node = acpi_ns_map_handle_to_node(handle);
if (!node) {
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return (AE_BAD_PARAMETER);
+ status = AE_BAD_PARAMETER;
+ goto cleanup;
}
- /* Get the namespace node data while the namespace is locked */
+ /* Init return structure */
+
+ size = sizeof(struct acpi_device_info);
- info_size = sizeof(struct acpi_device_info);
- type = node->type;
- name = node->name.integer;
+ info->type = node->type;
+ info->name = node->name.integer;
+ info->valid = 0;
if (node->type == ACPI_TYPE_METHOD) {
- param_count = node->object->method.param_count;
+ info->param_count = node->object->method.param_count;
}
status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE(status)) {
- return (status);
+ goto cleanup;
}
- if ((type == ACPI_TYPE_DEVICE) || (type == ACPI_TYPE_PROCESSOR)) {
+ /* If not a device, we are all done */
+
+ if (info->type == ACPI_TYPE_DEVICE) {
/*
- * Get extra info for ACPI Device/Processor objects only:
- * Run the Device _HID, _UID, and _CID methods.
+ * Get extra info for ACPI Devices objects only:
+ * Run the Device _HID, _UID, _CID, _STA, _ADR and _sx_d methods.
*
* Note: none of these methods are required, so they may or may
- * not be present for this device. The Info->Valid bitfield is used
- * to indicate which methods were found and run successfully.
+ * not be present for this device. The Info->Valid bitfield is used
+ * to indicate which methods were found and ran successfully.
*/
/* Execute the Device._HID method */
- status = acpi_ut_execute_HID(node, &hid);
+ status = acpi_ut_execute_HID(node, &info->hardware_id);
if (ACPI_SUCCESS(status)) {
- info_size += hid->length;
- valid |= ACPI_VALID_HID;
+ info->valid |= ACPI_VALID_HID;
}
/* Execute the Device._UID method */
- status = acpi_ut_execute_UID(node, &uid);
+ status = acpi_ut_execute_UID(node, &info->unique_id);
if (ACPI_SUCCESS(status)) {
- info_size += uid->length;
- valid |= ACPI_VALID_UID;
+ info->valid |= ACPI_VALID_UID;
}
/* Execute the Device._CID method */
status = acpi_ut_execute_CID(node, &cid_list);
if (ACPI_SUCCESS(status)) {
-
- /* Add size of CID strings and CID pointer array */
-
- info_size +=
- (cid_list->list_size -
- sizeof(struct acpica_device_id_list));
- valid |= ACPI_VALID_CID;
+ size += cid_list->size;
+ info->valid |= ACPI_VALID_CID;
}
- }
-
- /*
- * Now that we have the variable-length data, we can allocate the
- * return buffer
- */
- info = ACPI_ALLOCATE_ZEROED(info_size);
- if (!info) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /* Get the fixed-length data */
-
- if ((type == ACPI_TYPE_DEVICE) || (type == ACPI_TYPE_PROCESSOR)) {
- /*
- * Get extra info for ACPI Device/Processor objects only:
- * Run the _STA, _ADR and, sx_w, and _sx_d methods.
- *
- * Note: none of these methods are required, so they may or may
- * not be present for this device. The Info->Valid bitfield is used
- * to indicate which methods were found and run successfully.
- */
/* Execute the Device._STA method */
status = acpi_ut_execute_STA(node, &info->current_status);
if (ACPI_SUCCESS(status)) {
- valid |= ACPI_VALID_STA;
+ info->valid |= ACPI_VALID_STA;
}
/* Execute the Device._ADR method */
@@ -386,100 +323,36 @@ acpi_get_object_info(acpi_handle handle,
status = acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, node,
&info->address);
if (ACPI_SUCCESS(status)) {
- valid |= ACPI_VALID_ADR;
- }
-
- /* Execute the Device._sx_w methods */
-
- status = acpi_ut_execute_power_methods(node,
- acpi_gbl_lowest_dstate_names,
- ACPI_NUM_sx_w_METHODS,
- info->lowest_dstates);
- if (ACPI_SUCCESS(status)) {
- valid |= ACPI_VALID_SXWS;
+ info->valid |= ACPI_VALID_ADR;
}
/* Execute the Device._sx_d methods */
- status = acpi_ut_execute_power_methods(node,
- acpi_gbl_highest_dstate_names,
- ACPI_NUM_sx_d_METHODS,
- info->highest_dstates);
+ status = acpi_ut_execute_sxds(node, info->highest_dstates);
if (ACPI_SUCCESS(status)) {
- valid |= ACPI_VALID_SXDS;
+ info->valid |= ACPI_VALID_SXDS;
}
}
- /*
- * Create a pointer to the string area of the return buffer.
- * Point to the end of the base struct acpi_device_info structure.
- */
- next_id_string = ACPI_CAST_PTR(char, info->compatible_id_list.ids);
- if (cid_list) {
-
- /* Point past the CID DEVICE_ID array */
+ /* Validate/Allocate/Clear caller buffer */
- next_id_string +=
- ((acpi_size) cid_list->count *
- sizeof(struct acpica_device_id));
+ status = acpi_ut_initialize_buffer(buffer, size);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
}
- /*
- * Copy the HID, UID, and CIDs to the return buffer. The variable-length
- * strings are copied to the reserved area at the end of the buffer.
- *
- * For HID and CID, check if the ID is a PCI Root Bridge.
- */
- if (hid) {
- next_id_string = acpi_ns_copy_device_id(&info->hardware_id,
- hid, next_id_string);
-
- if (acpi_ut_is_pci_root_bridge(hid->string)) {
- info->flags |= ACPI_PCI_ROOT_BRIDGE;
- }
- }
+ /* Populate the return buffer */
- if (uid) {
- next_id_string = acpi_ns_copy_device_id(&info->unique_id,
- uid, next_id_string);
- }
+ return_info = buffer->pointer;
+ ACPI_MEMCPY(return_info, info, sizeof(struct acpi_device_info));
if (cid_list) {
- info->compatible_id_list.count = cid_list->count;
- info->compatible_id_list.list_size = cid_list->list_size;
-
- /* Copy each CID */
-
- for (i = 0; i < cid_list->count; i++) {
- next_id_string =
- acpi_ns_copy_device_id(&info->compatible_id_list.
- ids[i], &cid_list->ids[i],
- next_id_string);
-
- if (acpi_ut_is_pci_root_bridge(cid_list->ids[i].string)) {
- info->flags |= ACPI_PCI_ROOT_BRIDGE;
- }
- }
+ ACPI_MEMCPY(&return_info->compatibility_id, cid_list,
+ cid_list->size);
}
- /* Copy the fixed-length data */
-
- info->info_size = info_size;
- info->type = type;
- info->name = name;
- info->param_count = param_count;
- info->valid = valid;
-
- *return_buffer = info;
- status = AE_OK;
-
cleanup:
- if (hid) {
- ACPI_FREE(hid);
- }
- if (uid) {
- ACPI_FREE(uid);
- }
+ ACPI_FREE(info);
if (cid_list) {
ACPI_FREE(cid_list);
}
diff --git a/drivers/acpi/acpica/uteval.c b/drivers/acpi/acpica/uteval.c
index 5d54e36..a4734ac 100644
--- a/drivers/acpi/acpica/uteval.c
+++ b/drivers/acpi/acpica/uteval.c
@@ -44,10 +44,19 @@
#include <acpi/acpi.h>
#include "accommon.h"
#include "acnamesp.h"
+#include "acinterp.h"
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("uteval")
+/* Local prototypes */
+static void
+acpi_ut_copy_id_string(char *destination, char *source, acpi_size max_length);
+
+static acpi_status
+acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc,
+ struct acpi_compatible_id *one_cid);
+
/*
* Strings supported by the _OSI predefined (internal) method.
*
@@ -207,7 +216,7 @@ acpi_status acpi_osi_invalidate(char *interface)
* RETURN: Status
*
* DESCRIPTION: Evaluates a namespace object and verifies the type of the
- * return object. Common code that simplifies accessing objects
+ * return object. Common code that simplifies accessing objects
* that have required return objects of fixed types.
*
* NOTE: Internal function, no parameter validation
@@ -292,7 +301,7 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
if ((acpi_gbl_enable_interpreter_slack) && (!expected_return_btypes)) {
/*
- * We received a return object, but one was not expected. This can
+ * We received a return object, but one was not expected. This can
* happen frequently if the "implicit return" feature is enabled.
* Just delete the return object and return AE_OK.
*/
@@ -334,12 +343,12 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
*
* PARAMETERS: object_name - Object name to be evaluated
* device_node - Node for the device
- * Value - Where the value is returned
+ * Address - Where the value is returned
*
* RETURN: Status
*
* DESCRIPTION: Evaluates a numeric namespace object for a selected device
- * and stores result in *Value.
+ * and stores result in *Address.
*
* NOTE: Internal function, no parameter validation
*
@@ -348,7 +357,7 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
acpi_status
acpi_ut_evaluate_numeric_object(char *object_name,
struct acpi_namespace_node *device_node,
- acpi_integer *value)
+ acpi_integer * address)
{
union acpi_operand_object *obj_desc;
acpi_status status;
@@ -363,7 +372,295 @@ acpi_ut_evaluate_numeric_object(char *object_name,
/* Get the returned Integer */
- *value = obj_desc->integer.value;
+ *address = obj_desc->integer.value;
+
+ /* On exit, we must delete the return object */
+
+ acpi_ut_remove_reference(obj_desc);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_id_string
+ *
+ * PARAMETERS: Destination - Where to copy the string
+ * Source - Source string
+ * max_length - Length of the destination buffer
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Copies an ID string for the _HID, _CID, and _UID methods.
+ * Performs removal of a leading asterisk if present -- workaround
+ * for a known issue on a bunch of machines.
+ *
+ ******************************************************************************/
+
+static void
+acpi_ut_copy_id_string(char *destination, char *source, acpi_size max_length)
+{
+
+ /*
+ * Workaround for ID strings that have a leading asterisk. This construct
+ * is not allowed by the ACPI specification (ID strings must be
+ * alphanumeric), but enough existing machines have this embedded in their
+ * ID strings that the following code is useful.
+ */
+ if (*source == '*') {
+ source++;
+ }
+
+ /* Do the actual copy */
+
+ ACPI_STRNCPY(destination, source, max_length);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_execute_HID
+ *
+ * PARAMETERS: device_node - Node for the device
+ * Hid - Where the HID is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Executes the _HID control method that returns the hardware
+ * ID of the device.
+ *
+ * NOTE: Internal function, no parameter validation
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
+ struct acpica_device_id *hid)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ut_execute_HID);
+
+ status = acpi_ut_evaluate_object(device_node, METHOD_NAME__HID,
+ ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING,
+ &obj_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
+
+ /* Convert the Numeric HID to string */
+
+ acpi_ex_eisa_id_to_string((u32) obj_desc->integer.value,
+ hid->value);
+ } else {
+ /* Copy the String HID from the returned object */
+
+ acpi_ut_copy_id_string(hid->value, obj_desc->string.pointer,
+ sizeof(hid->value));
+ }
+
+ /* On exit, we must delete the return object */
+
+ acpi_ut_remove_reference(obj_desc);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_translate_one_cid
+ *
+ * PARAMETERS: obj_desc - _CID object, must be integer or string
+ * one_cid - Where the CID string is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Return a numeric or string _CID value as a string.
+ * (Compatible ID)
+ *
+ * NOTE: Assumes a maximum _CID string length of
+ * ACPI_MAX_CID_LENGTH.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc,
+ struct acpi_compatible_id *one_cid)
+{
+
+ switch (obj_desc->common.type) {
+ case ACPI_TYPE_INTEGER:
+
+ /* Convert the Numeric CID to string */
+
+ acpi_ex_eisa_id_to_string((u32) obj_desc->integer.value,
+ one_cid->value);
+ return (AE_OK);
+
+ case ACPI_TYPE_STRING:
+
+ if (obj_desc->string.length > ACPI_MAX_CID_LENGTH) {
+ return (AE_AML_STRING_LIMIT);
+ }
+
+ /* Copy the String CID from the returned object */
+
+ acpi_ut_copy_id_string(one_cid->value, obj_desc->string.pointer,
+ ACPI_MAX_CID_LENGTH);
+ return (AE_OK);
+
+ default:
+
+ return (AE_TYPE);
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_execute_CID
+ *
+ * PARAMETERS: device_node - Node for the device
+ * return_cid_list - Where the CID list is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Executes the _CID control method that returns one or more
+ * compatible hardware IDs for the device.
+ *
+ * NOTE: Internal function, no parameter validation
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_execute_CID(struct acpi_namespace_node * device_node,
+ struct acpi_compatible_id_list ** return_cid_list)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+ u32 count;
+ u32 size;
+ struct acpi_compatible_id_list *cid_list;
+ u32 i;
+
+ ACPI_FUNCTION_TRACE(ut_execute_CID);
+
+ /* Evaluate the _CID method for this device */
+
+ status = acpi_ut_evaluate_object(device_node, METHOD_NAME__CID,
+ ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING
+ | ACPI_BTYPE_PACKAGE, &obj_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Get the number of _CIDs returned */
+
+ count = 1;
+ if (obj_desc->common.type == ACPI_TYPE_PACKAGE) {
+ count = obj_desc->package.count;
+ }
+
+ /* Allocate a worst-case buffer for the _CIDs */
+
+ size = (((count - 1) * sizeof(struct acpi_compatible_id)) +
+ sizeof(struct acpi_compatible_id_list));
+
+ cid_list = ACPI_ALLOCATE_ZEROED((acpi_size) size);
+ if (!cid_list) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Init CID list */
+
+ cid_list->count = count;
+ cid_list->size = size;
+
+ /*
+ * A _CID can return either a single compatible ID or a package of
+ * compatible IDs. Each compatible ID can be one of the following:
+ * 1) Integer (32 bit compressed EISA ID) or
+ * 2) String (PCI ID format, e.g. "PCI\VEN_vvvv&DEV_dddd&SUBSYS_ssssssss")
+ */
+
+ /* The _CID object can be either a single CID or a package (list) of CIDs */
+
+ if (obj_desc->common.type == ACPI_TYPE_PACKAGE) {
+
+ /* Translate each package element */
+
+ for (i = 0; i < count; i++) {
+ status =
+ acpi_ut_translate_one_cid(obj_desc->package.
+ elements[i],
+ &cid_list->id[i]);
+ if (ACPI_FAILURE(status)) {
+ break;
+ }
+ }
+ } else {
+ /* Only one CID, translate to a string */
+
+ status = acpi_ut_translate_one_cid(obj_desc, cid_list->id);
+ }
+
+ /* Cleanup on error */
+
+ if (ACPI_FAILURE(status)) {
+ ACPI_FREE(cid_list);
+ } else {
+ *return_cid_list = cid_list;
+ }
+
+ /* On exit, we must delete the _CID return object */
+
+ acpi_ut_remove_reference(obj_desc);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_execute_UID
+ *
+ * PARAMETERS: device_node - Node for the device
+ * Uid - Where the UID is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Executes the _UID control method that returns the hardware
+ * ID of the device.
+ *
+ * NOTE: Internal function, no parameter validation
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_execute_UID(struct acpi_namespace_node *device_node,
+ struct acpica_device_id *uid)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ut_execute_UID);
+
+ status = acpi_ut_evaluate_object(device_node, METHOD_NAME__UID,
+ ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING,
+ &obj_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
+
+ /* Convert the Numeric UID to string */
+
+ acpi_ex_unsigned_integer_to_string(obj_desc->integer.value,
+ uid->value);
+ } else {
+ /* Copy the String UID from the returned object */
+
+ acpi_ut_copy_id_string(uid->value, obj_desc->string.pointer,
+ sizeof(uid->value));
+ }
/* On exit, we must delete the return object */
@@ -422,64 +719,60 @@ acpi_ut_execute_STA(struct acpi_namespace_node *device_node, u32 * flags)
/*******************************************************************************
*
- * FUNCTION: acpi_ut_execute_power_methods
+ * FUNCTION: acpi_ut_execute_Sxds
*
* PARAMETERS: device_node - Node for the device
- * method_names - Array of power method names
- * method_count - Number of methods to execute
- * out_values - Where the power method values are returned
+ * Flags - Where the status flags are returned
*
- * RETURN: Status, out_values
+ * RETURN: Status
*
- * DESCRIPTION: Executes the specified power methods for the device and returns
- * the result(s).
+ * DESCRIPTION: Executes _STA for selected device and stores results in
+ * *Flags.
*
* NOTE: Internal function, no parameter validation
*
-******************************************************************************/
+ ******************************************************************************/
acpi_status
-acpi_ut_execute_power_methods(struct acpi_namespace_node *device_node,
- const char **method_names,
- u8 method_count, u8 *out_values)
+acpi_ut_execute_sxds(struct acpi_namespace_node *device_node, u8 * highest)
{
union acpi_operand_object *obj_desc;
acpi_status status;
- acpi_status final_status = AE_NOT_FOUND;
u32 i;
- ACPI_FUNCTION_TRACE(ut_execute_power_methods);
+ ACPI_FUNCTION_TRACE(ut_execute_sxds);
- for (i = 0; i < method_count; i++) {
- /*
- * Execute the power method (_sx_d or _sx_w). The only allowable
- * return type is an Integer.
- */
+ for (i = 0; i < 4; i++) {
+ highest[i] = 0xFF;
status = acpi_ut_evaluate_object(device_node,
ACPI_CAST_PTR(char,
- method_names[i]),
+ acpi_gbl_highest_dstate_names
+ [i]),
ACPI_BTYPE_INTEGER, &obj_desc);
- if (ACPI_SUCCESS(status)) {
- out_values[i] = (u8)obj_desc->integer.value;
+ if (ACPI_FAILURE(status)) {
+ if (status != AE_NOT_FOUND) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "%s on Device %4.4s, %s\n",
+ ACPI_CAST_PTR(char,
+ acpi_gbl_highest_dstate_names
+ [i]),
+ acpi_ut_get_node_name
+ (device_node),
+ acpi_format_exception
+ (status)));
+
+ return_ACPI_STATUS(status);
+ }
+ } else {
+ /* Extract the Dstate value */
+
+ highest[i] = (u8) obj_desc->integer.value;
/* Delete the return object */
acpi_ut_remove_reference(obj_desc);
- final_status = AE_OK; /* At least one value is valid */
- continue;
}
-
- out_values[i] = ACPI_UINT8_MAX;
- if (status == AE_NOT_FOUND) {
- continue; /* Ignore if not found */
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Failed %s on Device %4.4s, %s\n",
- ACPI_CAST_PTR(char, method_names[i]),
- acpi_ut_get_node_name(device_node),
- acpi_format_exception(status)));
}
- return_ACPI_STATUS(final_status);
+ return_ACPI_STATUS(AE_OK);
}
diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c
index 3f2c68f..1d83dd5 100644
--- a/drivers/acpi/acpica/utglobal.c
+++ b/drivers/acpi/acpica/utglobal.c
@@ -90,15 +90,7 @@ const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = {
"\\_S5_"
};
-const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS] = {
- "_S0W",
- "_S1W",
- "_S2W",
- "_S3W",
- "_S4W"
-};
-
-const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS] = {
+const char *acpi_gbl_highest_dstate_names[4] = {
"_S1D",
"_S2D",
"_S3D",
diff --git a/drivers/acpi/acpica/utids.c b/drivers/acpi/acpica/utids.c
deleted file mode 100644
index 52eaae4..0000000
--- a/drivers/acpi/acpica/utids.c
+++ /dev/null
@@ -1,382 +0,0 @@
-/******************************************************************************
- *
- * Module Name: utids - support for device IDs - HID, UID, CID
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2009, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include "accommon.h"
-#include "acinterp.h"
-
-#define _COMPONENT ACPI_UTILITIES
-ACPI_MODULE_NAME("utids")
-
-/* Local prototypes */
-static void acpi_ut_copy_id_string(char *destination, char *source);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_copy_id_string
- *
- * PARAMETERS: Destination - Where to copy the string
- * Source - Source string
- *
- * RETURN: None
- *
- * DESCRIPTION: Copies an ID string for the _HID, _CID, and _UID methods.
- * Performs removal of a leading asterisk if present -- workaround
- * for a known issue on a bunch of machines.
- *
- ******************************************************************************/
-
-static void acpi_ut_copy_id_string(char *destination, char *source)
-{
-
- /*
- * Workaround for ID strings that have a leading asterisk. This construct
- * is not allowed by the ACPI specification (ID strings must be
- * alphanumeric), but enough existing machines have this embedded in their
- * ID strings that the following code is useful.
- */
- if (*source == '*') {
- source++;
- }
-
- /* Do the actual copy */
-
- ACPI_STRCPY(destination, source);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_execute_HID
- *
- * PARAMETERS: device_node - Node for the device
- * return_id - Where the string HID is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Executes the _HID control method that returns the hardware
- * ID of the device. The HID is either an 32-bit encoded EISAID
- * Integer or a String. A string is always returned. An EISAID
- * is converted to a string.
- *
- * NOTE: Internal function, no parameter validation
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
- struct acpica_device_id **return_id)
-{
- union acpi_operand_object *obj_desc;
- struct acpica_device_id *hid;
- u32 length;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ut_execute_HID);
-
- status = acpi_ut_evaluate_object(device_node, METHOD_NAME__HID,
- ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING,
- &obj_desc);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Get the size of the String to be returned, includes null terminator */
-
- if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
- length = ACPI_EISAID_STRING_SIZE;
- } else {
- length = obj_desc->string.length + 1;
- }
-
- /* Allocate a buffer for the HID */
-
- hid =
- ACPI_ALLOCATE_ZEROED(sizeof(struct acpica_device_id) +
- (acpi_size) length);
- if (!hid) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /* Area for the string starts after DEVICE_ID struct */
-
- hid->string = ACPI_ADD_PTR(char, hid, sizeof(struct acpica_device_id));
-
- /* Convert EISAID to a string or simply copy existing string */
-
- if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
- acpi_ex_eisa_id_to_string(hid->string, obj_desc->integer.value);
- } else {
- acpi_ut_copy_id_string(hid->string, obj_desc->string.pointer);
- }
-
- hid->length = length;
- *return_id = hid;
-
-cleanup:
-
- /* On exit, we must delete the return object */
-
- acpi_ut_remove_reference(obj_desc);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_execute_UID
- *
- * PARAMETERS: device_node - Node for the device
- * return_id - Where the string UID is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Executes the _UID control method that returns the unique
- * ID of the device. The UID is either a 64-bit Integer (NOT an
- * EISAID) or a string. Always returns a string. A 64-bit integer
- * is converted to a decimal string.
- *
- * NOTE: Internal function, no parameter validation
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_execute_UID(struct acpi_namespace_node *device_node,
- struct acpica_device_id **return_id)
-{
- union acpi_operand_object *obj_desc;
- struct acpica_device_id *uid;
- u32 length;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ut_execute_UID);
-
- status = acpi_ut_evaluate_object(device_node, METHOD_NAME__UID,
- ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING,
- &obj_desc);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Get the size of the String to be returned, includes null terminator */
-
- if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
- length = ACPI_MAX64_DECIMAL_DIGITS + 1;
- } else {
- length = obj_desc->string.length + 1;
- }
-
- /* Allocate a buffer for the UID */
-
- uid =
- ACPI_ALLOCATE_ZEROED(sizeof(struct acpica_device_id) +
- (acpi_size) length);
- if (!uid) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /* Area for the string starts after DEVICE_ID struct */
-
- uid->string = ACPI_ADD_PTR(char, uid, sizeof(struct acpica_device_id));
-
- /* Convert an Integer to string, or just copy an existing string */
-
- if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
- acpi_ex_integer_to_string(uid->string, obj_desc->integer.value);
- } else {
- acpi_ut_copy_id_string(uid->string, obj_desc->string.pointer);
- }
-
- uid->length = length;
- *return_id = uid;
-
-cleanup:
-
- /* On exit, we must delete the return object */
-
- acpi_ut_remove_reference(obj_desc);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_execute_CID
- *
- * PARAMETERS: device_node - Node for the device
- * return_cid_list - Where the CID list is returned
- *
- * RETURN: Status, list of CID strings
- *
- * DESCRIPTION: Executes the _CID control method that returns one or more
- * compatible hardware IDs for the device.
- *
- * NOTE: Internal function, no parameter validation
- *
- * A _CID method can return either a single compatible ID or a package of
- * compatible IDs. Each compatible ID can be one of the following:
- * 1) Integer (32 bit compressed EISA ID) or
- * 2) String (PCI ID format, e.g. "PCI\VEN_vvvv&DEV_dddd&SUBSYS_ssssssss")
- *
- * The Integer CIDs are converted to string format by this function.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_execute_CID(struct acpi_namespace_node *device_node,
- struct acpica_device_id_list **return_cid_list)
-{
- union acpi_operand_object **cid_objects;
- union acpi_operand_object *obj_desc;
- struct acpica_device_id_list *cid_list;
- char *next_id_string;
- u32 string_area_size;
- u32 length;
- u32 cid_list_size;
- acpi_status status;
- u32 count;
- u32 i;
-
- ACPI_FUNCTION_TRACE(ut_execute_CID);
-
- /* Evaluate the _CID method for this device */
-
- status = acpi_ut_evaluate_object(device_node, METHOD_NAME__CID,
- ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING
- | ACPI_BTYPE_PACKAGE, &obj_desc);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * Get the count and size of the returned _CIDs. _CID can return either
- * a Package of Integers/Strings or a single Integer or String.
- * Note: This section also validates that all CID elements are of the
- * correct type (Integer or String).
- */
- if (obj_desc->common.type == ACPI_TYPE_PACKAGE) {
- count = obj_desc->package.count;
- cid_objects = obj_desc->package.elements;
- } else { /* Single Integer or String CID */
-
- count = 1;
- cid_objects = &obj_desc;
- }
-
- string_area_size = 0;
- for (i = 0; i < count; i++) {
-
- /* String lengths include null terminator */
-
- switch (cid_objects[i]->common.type) {
- case ACPI_TYPE_INTEGER:
- string_area_size += ACPI_EISAID_STRING_SIZE;
- break;
-
- case ACPI_TYPE_STRING:
- string_area_size += cid_objects[i]->string.length + 1;
- break;
-
- default:
- status = AE_TYPE;
- goto cleanup;
- }
- }
-
- /*
- * Now that we know the length of the CIDs, allocate return buffer:
- * 1) Size of the base structure +
- * 2) Size of the CID DEVICE_ID array +
- * 3) Size of the actual CID strings
- */
- cid_list_size = sizeof(struct acpica_device_id_list) +
- ((count - 1) * sizeof(struct acpica_device_id)) + string_area_size;
-
- cid_list = ACPI_ALLOCATE_ZEROED(cid_list_size);
- if (!cid_list) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /* Area for CID strings starts after the CID DEVICE_ID array */
-
- next_id_string = ACPI_CAST_PTR(char, cid_list->ids) +
- ((acpi_size) count * sizeof(struct acpica_device_id));
-
- /* Copy/convert the CIDs to the return buffer */
-
- for (i = 0; i < count; i++) {
- if (cid_objects[i]->common.type == ACPI_TYPE_INTEGER) {
-
- /* Convert the Integer (EISAID) CID to a string */
-
- acpi_ex_eisa_id_to_string(next_id_string,
- cid_objects[i]->integer.
- value);
- length = ACPI_EISAID_STRING_SIZE;
- } else { /* ACPI_TYPE_STRING */
-
- /* Copy the String CID from the returned object */
-
- acpi_ut_copy_id_string(next_id_string,
- cid_objects[i]->string.pointer);
- length = cid_objects[i]->string.length + 1;
- }
-
- cid_list->ids[i].string = next_id_string;
- cid_list->ids[i].length = length;
- next_id_string += length;
- }
-
- /* Finish the CID list */
-
- cid_list->count = count;
- cid_list->list_size = cid_list_size;
- *return_cid_list = cid_list;
-
-cleanup:
-
- /* On exit, we must delete the _CID return object */
-
- acpi_ut_remove_reference(obj_desc);
- return_ACPI_STATUS(status);
-}
diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c
index 61f6315..75d2d93 100644
--- a/drivers/acpi/acpica/utmisc.c
+++ b/drivers/acpi/acpica/utmisc.c
@@ -125,34 +125,6 @@ const char *acpi_ut_validate_exception(acpi_status status)
/*******************************************************************************
*
- * FUNCTION: acpi_ut_is_pci_root_bridge
- *
- * PARAMETERS: Id - The HID/CID in string format
- *
- * RETURN: TRUE if the Id is a match for a PCI/PCI-Express Root Bridge
- *
- * DESCRIPTION: Determine if the input ID is a PCI Root Bridge ID.
- *
- ******************************************************************************/
-
-u8 acpi_ut_is_pci_root_bridge(char *id)
-{
-
- /*
- * Check if this is a PCI root bridge.
- * ACPI 3.0+: check for a PCI Express root also.
- */
- if (!(ACPI_STRCMP(id,
- PCI_ROOT_HID_STRING)) ||
- !(ACPI_STRCMP(id, PCI_EXPRESS_ROOT_HID_STRING))) {
- return (TRUE);
- }
-
- return (FALSE);
-}
-
-/*******************************************************************************
- *
* FUNCTION: acpi_ut_is_aml_table
*
* PARAMETERS: Table - An ACPI table
diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c
index 642bb30..5f2c3c0 100644
--- a/drivers/acpi/container.c
+++ b/drivers/acpi/container.c
@@ -202,17 +202,20 @@ container_walk_namespace_cb(acpi_handle handle,
u32 lvl, void *context, void **rv)
{
char *hid = NULL;
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
struct acpi_device_info *info;
acpi_status status;
int *action = context;
- status = acpi_get_object_info(handle, &info);
- if (ACPI_FAILURE(status)) {
+
+ status = acpi_get_object_info(handle, &buffer);
+ if (ACPI_FAILURE(status) || !buffer.pointer) {
return AE_OK;
}
+ info = buffer.pointer;
if (info->valid & ACPI_VALID_HID)
- hid = info->hardware_id.string;
+ hid = info->hardware_id.value;
if (hid == NULL) {
goto end;
@@ -239,7 +242,7 @@ container_walk_namespace_cb(acpi_handle handle,
}
end:
- kfree(info);
+ kfree(buffer.pointer);
return AE_OK;
}
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 3a2cfef..9a85566 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -233,16 +233,18 @@ static int is_ata(acpi_handle handle)
static int is_battery(acpi_handle handle)
{
struct acpi_device_info *info;
+ struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
int ret = 1;
- if (!ACPI_SUCCESS(acpi_get_object_info(handle, &info)))
+ if (!ACPI_SUCCESS(acpi_get_object_info(handle, &buffer)))
return 0;
+ info = buffer.pointer;
if (!(info->valid & ACPI_VALID_HID))
ret = 0;
else
- ret = !strcmp("PNP0C0A", info->hardware_id.string);
+ ret = !strcmp("PNP0C0A", info->hardware_id.value);
- kfree(info);
+ kfree(buffer.pointer);
return ret;
}
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index c6645f2..82daa75 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -95,13 +95,15 @@ do_acpi_find_child(acpi_handle handle, u32 lvl, void *context, void **rv)
{
acpi_status status;
struct acpi_device_info *info;
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
struct acpi_find_child *find = context;
- status = acpi_get_object_info(handle, &info);
+ status = acpi_get_object_info(handle, &buffer);
if (ACPI_SUCCESS(status)) {
+ info = buffer.pointer;
if (info->address == find->address)
find->handle = handle;
- kfree(info);
+ kfree(buffer.pointer);
}
return AE_OK;
}
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 408ebde..056f17c 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -60,13 +60,13 @@ static int create_modalias(struct acpi_device *acpi_dev, char *modalias,
}
if (acpi_dev->flags.compatible_ids) {
- struct acpica_device_id_list *cid_list;
+ struct acpi_compatible_id_list *cid_list;
int i;
cid_list = acpi_dev->pnp.cid_list;
for (i = 0; i < cid_list->count; i++) {
count = snprintf(&modalias[len], size, "%s:",
- cid_list->ids[i].string);
+ cid_list->id[i].value);
if (count < 0 || count >= size) {
printk(KERN_ERR PREFIX "%s cid[%i] exceeds event buffer size",
acpi_dev->pnp.device_name, i);
@@ -287,14 +287,14 @@ int acpi_match_device_ids(struct acpi_device *device,
}
if (device->flags.compatible_ids) {
- struct acpica_device_id_list *cid_list = device->pnp.cid_list;
+ struct acpi_compatible_id_list *cid_list = device->pnp.cid_list;
int i;
for (id = ids; id->id[0]; id++) {
/* compare multiple _CID entries against driver ids */
for (i = 0; i < cid_list->count; i++) {
if (!strcmp((char*)id->id,
- cid_list->ids[i].string))
+ cid_list->id[i].value))
return 0;
}
}
@@ -1000,89 +1000,33 @@ static int acpi_dock_match(struct acpi_device *device)
return acpi_get_handle(device->handle, "_DCK", &tmp);
}
-static struct acpica_device_id_list*
-acpi_add_cid(
- struct acpi_device_info *info,
- struct acpica_device_id *new_cid)
-{
- struct acpica_device_id_list *cid;
- char *next_id_string;
- acpi_size cid_length;
- acpi_size new_cid_length;
- u32 i;
-
-
- /* Allocate new CID list with room for the new CID */
-
- if (!new_cid)
- new_cid_length = info->compatible_id_list.list_size;
- else if (info->compatible_id_list.list_size)
- new_cid_length = info->compatible_id_list.list_size +
- new_cid->length + sizeof(struct acpica_device_id);
- else
- new_cid_length = sizeof(struct acpica_device_id_list) + new_cid->length;
-
- cid = ACPI_ALLOCATE_ZEROED(new_cid_length);
- if (!cid) {
- return NULL;
- }
-
- cid->list_size = new_cid_length;
- cid->count = info->compatible_id_list.count;
- if (new_cid)
- cid->count++;
- next_id_string = (char *) cid->ids + (cid->count * sizeof(struct acpica_device_id));
-
- /* Copy all existing CIDs */
-
- for (i = 0; i < info->compatible_id_list.count; i++) {
- cid_length = info->compatible_id_list.ids[i].length;
- cid->ids[i].string = next_id_string;
- cid->ids[i].length = cid_length;
-
- ACPI_MEMCPY(next_id_string, info->compatible_id_list.ids[i].string,
- cid_length);
-
- next_id_string += cid_length;
- }
-
- /* Append the new CID */
-
- if (new_cid) {
- cid->ids[i].string = next_id_string;
- cid->ids[i].length = new_cid->length;
-
- ACPI_MEMCPY(next_id_string, new_cid->string, new_cid->length);
- }
-
- return cid;
-}
-
static void acpi_device_set_id(struct acpi_device *device,
struct acpi_device *parent, acpi_handle handle,
int type)
{
- struct acpi_device_info *info = NULL;
+ struct acpi_device_info *info;
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
char *hid = NULL;
char *uid = NULL;
- struct acpica_device_id_list *cid_list = NULL;
- char *cid_add = NULL;
+ struct acpi_compatible_id_list *cid_list = NULL;
+ const char *cid_add = NULL;
acpi_status status;
switch (type) {
case ACPI_BUS_TYPE_DEVICE:
- status = acpi_get_object_info(handle, &info);
+ status = acpi_get_object_info(handle, &buffer);
if (ACPI_FAILURE(status)) {
printk(KERN_ERR PREFIX "%s: Error reading device info\n", __func__);
return;
}
+ info = buffer.pointer;
if (info->valid & ACPI_VALID_HID)
- hid = info->hardware_id.string;
+ hid = info->hardware_id.value;
if (info->valid & ACPI_VALID_UID)
- uid = info->unique_id.string;
+ uid = info->unique_id.value;
if (info->valid & ACPI_VALID_CID)
- cid_list = &info->compatible_id_list;
+ cid_list = &info->compatibility_id;
if (info->valid & ACPI_VALID_ADR) {
device->pnp.bus_address = info->address;
device->flags.bus_address = 1;
@@ -1133,46 +1077,55 @@ static void acpi_device_set_id(struct acpi_device *device,
}
if (hid) {
- device->pnp.hardware_id = ACPI_ALLOCATE_ZEROED(strlen (hid) + 1);
- if (device->pnp.hardware_id) {
- strcpy(device->pnp.hardware_id, hid);
- device->flags.hardware_id = 1;
- }
+ strcpy(device->pnp.hardware_id, hid);
+ device->flags.hardware_id = 1;
}
- if (!device->flags.hardware_id)
- device->pnp.hardware_id = "";
-
if (uid) {
- device->pnp.unique_id = ACPI_ALLOCATE_ZEROED(strlen (uid) + 1);
- if (device->pnp.unique_id) {
- strcpy(device->pnp.unique_id, uid);
- device->flags.unique_id = 1;
- }
+ strcpy(device->pnp.unique_id, uid);
+ device->flags.unique_id = 1;
}
- if (!device->flags.unique_id)
- device->pnp.unique_id = "";
-
if (cid_list || cid_add) {
- struct acpica_device_id_list *list;
-
- if (cid_add) {
- struct acpica_device_id cid;
- cid.length = strlen (cid_add) + 1;
- cid.string = cid_add;
-
- list = acpi_add_cid(info, &cid);
- } else {
- list = acpi_add_cid(info, NULL);
+ struct acpi_compatible_id_list *list;
+ int size = 0;
+ int count = 0;
+
+ if (cid_list) {
+ size = cid_list->size;
+ } else if (cid_add) {
+ size = sizeof(struct acpi_compatible_id_list);
+ cid_list = ACPI_ALLOCATE_ZEROED((acpi_size) size);
+ if (!cid_list) {
+ printk(KERN_ERR "Memory allocation error\n");
+ kfree(buffer.pointer);
+ return;
+ } else {
+ cid_list->count = 0;
+ cid_list->size = size;
+ }
}
+ if (cid_add)
+ size += sizeof(struct acpi_compatible_id);
+ list = kmalloc(size, GFP_KERNEL);
if (list) {
- device->pnp.cid_list = list;
- if (cid_add)
+ if (cid_list) {
+ memcpy(list, cid_list, cid_list->size);
+ count = cid_list->count;
+ }
+ if (cid_add) {
+ strncpy(list->id[count].value, cid_add,
+ ACPI_MAX_CID_LENGTH);
+ count++;
device->flags.compatible_ids = 1;
- }
+ }
+ list->size = size;
+ list->count = count;
+ device->pnp.cid_list = list;
+ } else
+ printk(KERN_ERR PREFIX "Memory allocation error\n");
}
- kfree(info);
+ kfree(buffer.pointer);
}
static int acpi_device_set_context(struct acpi_device *device, int type)
diff --git a/drivers/char/agp/hp-agp.c b/drivers/char/agp/hp-agp.c
index 9047b27..501e293 100644
--- a/drivers/char/agp/hp-agp.c
+++ b/drivers/char/agp/hp-agp.c
@@ -476,6 +476,7 @@ zx1_gart_probe (acpi_handle obj, u32 depth, void *context, void **ret)
{
acpi_handle handle, parent;
acpi_status status;
+ struct acpi_buffer buffer;
struct acpi_device_info *info;
u64 lba_hpa, sba_hpa, length;
int match;
@@ -487,11 +488,13 @@ zx1_gart_probe (acpi_handle obj, u32 depth, void *context, void **ret)
/* Look for an enclosing IOC scope and find its CSR space */
handle = obj;
do {
- status = acpi_get_object_info(handle, &info);
+ buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+ status = acpi_get_object_info(handle, &buffer);
if (ACPI_SUCCESS(status)) {
/* TBD check _CID also */
- info->hardware_id.string[sizeof(info->hardware_id.length)-1] = '\0';
- match = (strcmp(info->hardware_id.string, "HWP0001") == 0);
+ info = buffer.pointer;
+ info->hardware_id.value[sizeof(info->hardware_id)-1] = '\0';
+ match = (strcmp(info->hardware_id.value, "HWP0001") == 0);
kfree(info);
if (match) {
status = hp_acpi_csr_space(handle, &sba_hpa, &length);
diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c
index c0cf45a..c509c99 100644
--- a/drivers/ide/ide-acpi.c
+++ b/drivers/ide/ide-acpi.c
@@ -114,6 +114,8 @@ static int ide_get_dev_handle(struct device *dev, acpi_handle *handle,
unsigned int bus, devnum, func;
acpi_integer addr;
acpi_handle dev_handle;
+ struct acpi_buffer buffer = {.length = ACPI_ALLOCATE_BUFFER,
+ .pointer = NULL};
acpi_status status;
struct acpi_device_info *dinfo = NULL;
int ret = -ENODEV;
@@ -132,11 +134,12 @@ static int ide_get_dev_handle(struct device *dev, acpi_handle *handle,
goto err;
}
- status = acpi_get_object_info(dev_handle, &dinfo);
+ status = acpi_get_object_info(dev_handle, &buffer);
if (ACPI_FAILURE(status)) {
DEBPRINT("get_object_info for device failed\n");
goto err;
}
+ dinfo = buffer.pointer;
if (dinfo && (dinfo->valid & ACPI_VALID_ADR) &&
dinfo->address == addr) {
*pcidevfn = addr;
diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c
index a9d926b..5befa7e 100644
--- a/drivers/pci/hotplug/acpiphp_ibm.c
+++ b/drivers/pci/hotplug/acpiphp_ibm.c
@@ -398,21 +398,23 @@ static acpi_status __init ibm_find_acpi_device(acpi_handle handle,
acpi_handle *phandle = (acpi_handle *)context;
acpi_status status;
struct acpi_device_info *info;
+ struct acpi_buffer info_buffer = { ACPI_ALLOCATE_BUFFER, NULL };
int retval = 0;
- status = acpi_get_object_info(handle, &info);
+ status = acpi_get_object_info(handle, &info_buffer);
if (ACPI_FAILURE(status)) {
err("%s: Failed to get device information status=0x%x\n",
__func__, status);
return retval;
}
- info->hardware_id.string[sizeof(info->hardware_id.length) - 1] = '\0';
+ info = info_buffer.pointer;
+ info->hardware_id.value[sizeof(info->hardware_id.value) - 1] = '\0';
if (info->current_status && (info->valid & ACPI_VALID_HID) &&
- (!strcmp(info->hardware_id.string, IBM_HARDWARE_ID1) ||
- !strcmp(info->hardware_id.string, IBM_HARDWARE_ID2))) {
+ (!strcmp(info->hardware_id.value, IBM_HARDWARE_ID1) ||
+ !strcmp(info->hardware_id.value, IBM_HARDWARE_ID2))) {
dbg("found hardware: %s, handle: %p\n",
- info->hardware_id.string, handle);
+ info->hardware_id.value, handle);
*phandle = handle;
/* returning non-zero causes the search to stop
* and returns this value to the caller of
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index f9f68e0..dafaa4a 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -976,12 +976,15 @@ static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
void *context, void **return_value)
{
struct acpi_device_info *info;
+ struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
+
+ if (ACPI_SUCCESS(acpi_get_object_info(handle, &buffer))) {
+ info = buffer.pointer;
- if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n",
(char *)&info->name, info->param_count);
- kfree(info);
+ kfree(buffer.pointer);
}
return AE_OK;
diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c
index c07fdb9..9496494 100644
--- a/drivers/pnp/pnpacpi/core.c
+++ b/drivers/pnp/pnpacpi/core.c
@@ -194,13 +194,13 @@ static int __init pnpacpi_add_device(struct acpi_device *device)
pnpacpi_parse_resource_option_data(dev);
if (device->flags.compatible_ids) {
- struct acpica_device_id_list *cid_list = device->pnp.cid_list;
+ struct acpi_compatible_id_list *cid_list = device->pnp.cid_list;
int i;
for (i = 0; i < cid_list->count; i++) {
- if (!ispnpidacpi(cid_list->ids[i].string))
+ if (!ispnpidacpi(cid_list->id[i].value))
continue;
- pnp_add_id(dev, cid_list->ids[i].string);
+ pnp_add_id(dev, cid_list->id[i].value);
}
}
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 1cef139..7f2cabb 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -169,15 +169,17 @@ struct acpi_device_dir {
typedef char acpi_bus_id[8];
typedef unsigned long acpi_bus_address;
+typedef char acpi_hardware_id[15];
+typedef char acpi_unique_id[9];
typedef char acpi_device_name[40];
typedef char acpi_device_class[20];
struct acpi_device_pnp {
acpi_bus_id bus_id; /* Object name */
acpi_bus_address bus_address; /* _ADR */
- char *hardware_id; /* _HID */
- struct acpica_device_id_list *cid_list; /* _CIDs */
- char *unique_id; /* _UID */
+ acpi_hardware_id hardware_id; /* _HID */
+ struct acpi_compatible_id_list *cid_list; /* _CIDs */
+ acpi_unique_id unique_id; /* _UID */
acpi_device_name device_name; /* Driver-determined */
acpi_device_class device_class; /* " */
};
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index e723b0f..a7eecb4 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -200,8 +200,7 @@ acpi_evaluate_object_typed(acpi_handle object,
acpi_object_type return_type);
acpi_status
-acpi_get_object_info(acpi_handle handle,
- struct acpi_device_info **return_buffer);
+acpi_get_object_info(acpi_handle handle, struct acpi_buffer *return_buffer);
acpi_status acpi_install_method(u8 *buffer);
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 153f12d..90df86f 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -338,7 +338,7 @@ typedef u32 acpi_physical_address;
/* PM Timer ticks per second (HZ) */
-#define PM_TIMER_FREQUENCY 3579545
+#define PM_TIMER_FREQUENCY 3579545
/*******************************************************************************
*
@@ -970,60 +970,38 @@ acpi_status(*acpi_walk_callback) (acpi_handle obj_handle,
#define ACPI_INTERRUPT_NOT_HANDLED 0x00
#define ACPI_INTERRUPT_HANDLED 0x01
-/* Length of 32-bit EISAID values when converted back to a string */
-
-#define ACPI_EISAID_STRING_SIZE 8 /* Includes null terminator */
-
-/* Length of UUID (string) values */
+/* Length of _HID, _UID, _CID, and UUID values */
+#define ACPI_DEVICE_ID_LENGTH 0x09
+#define ACPI_MAX_CID_LENGTH 48
#define ACPI_UUID_LENGTH 16
-/* Structures used for device/processor HID, UID, CID */
+/* Common string version of device HIDs and UIDs */
struct acpica_device_id {
- u32 length; /* Length of string + null */
- char *string;
+ char value[ACPI_DEVICE_ID_LENGTH];
};
-struct acpica_device_id_list {
- u32 count; /* Number of IDs in Ids array */
- u32 list_size; /* Size of list, including ID strings */
- struct acpica_device_id ids[1]; /* ID array */
-};
+/* Common string version of device CIDs */
-/*
- * Structure returned from acpi_get_object_info.
- * Optimized for both 32- and 64-bit builds
- */
-struct acpi_device_info {
- u32 info_size; /* Size of info, including ID strings */
- u32 name; /* ACPI object Name */
- acpi_object_type type; /* ACPI object Type */
- u8 param_count; /* If a method, required parameter count */
- u8 valid; /* Indicates which optional fields are valid */
- u8 flags; /* Miscellaneous info */
- u8 highest_dstates[4]; /* _sx_d values: 0xFF indicates not valid */
- u8 lowest_dstates[5]; /* _sx_w values: 0xFF indicates not valid */
- u32 current_status; /* _STA value */
- acpi_integer address; /* _ADR value */
- struct acpica_device_id hardware_id; /* _HID value */
- struct acpica_device_id unique_id; /* _UID value */
- struct acpica_device_id_list compatible_id_list; /* _CID list <must be last> */
+struct acpi_compatible_id {
+ char value[ACPI_MAX_CID_LENGTH];
};
-/* Values for Flags field above (acpi_get_object_info) */
-
-#define ACPI_PCI_ROOT_BRIDGE 0x01
+struct acpi_compatible_id_list {
+ u32 count;
+ u32 size;
+ struct acpi_compatible_id id[1];
+};
-/* Flags for Valid field above (acpi_get_object_info) */
+/* Structure and flags for acpi_get_object_info */
-#define ACPI_VALID_STA 0x01
-#define ACPI_VALID_ADR 0x02
-#define ACPI_VALID_HID 0x04
-#define ACPI_VALID_UID 0x08
-#define ACPI_VALID_CID 0x10
-#define ACPI_VALID_SXDS 0x20
-#define ACPI_VALID_SXWS 0x40
+#define ACPI_VALID_STA 0x0001
+#define ACPI_VALID_ADR 0x0002
+#define ACPI_VALID_HID 0x0004
+#define ACPI_VALID_UID 0x0008
+#define ACPI_VALID_CID 0x0010
+#define ACPI_VALID_SXDS 0x0020
/* Flags for _STA method */
@@ -1034,6 +1012,29 @@ struct acpi_device_info {
#define ACPI_STA_DEVICE_OK 0x08 /* Synonym */
#define ACPI_STA_BATTERY_PRESENT 0x10
+#define ACPI_COMMON_OBJ_INFO \
+ acpi_object_type type; /* ACPI object type */ \
+ acpi_name name /* ACPI object Name */
+
+struct acpi_obj_info_header {
+ ACPI_COMMON_OBJ_INFO;
+};
+
+/* Structure returned from Get Object Info */
+
+struct acpi_device_info {
+ ACPI_COMMON_OBJ_INFO;
+
+ u32 param_count; /* If a method, required parameter count */
+ u32 valid; /* Indicates which fields below are valid */
+ u32 current_status; /* _STA value */
+ acpi_integer address; /* _ADR value if any */
+ struct acpica_device_id hardware_id; /* _HID value if any */
+ struct acpica_device_id unique_id; /* _UID value if any */
+ u8 highest_dstates[4]; /* _sx_d values: 0xFF indicates not valid */
+ struct acpi_compatible_id_list compatibility_id; /* List of _CIDs if any */
+};
+
/* Context structs for address space handlers */
struct acpi_pci_id {
--
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