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authorRobert Moore <robert.moore@intel.com>2005-06-24 00:00:00 -0400
committerLen Brown <len.brown@intel.com>2005-07-13 23:45:36 -0400
commit73459f73e5d1602c59ebec114fc45185521353c1 (patch)
tree56c2183e345784d2be09c2f5d2530cf36221c55e /drivers/acpi/events
parent88ac00f5a841dcfc5c682000f4a6add0add8caac (diff)
downloadop-kernel-dev-73459f73e5d1602c59ebec114fc45185521353c1.zip
op-kernel-dev-73459f73e5d1602c59ebec114fc45185521353c1.tar.gz
ACPICA 20050617-0624 from Bob Moore <robert.moore@intel.com>
ACPICA 20050617: Moved the object cache operations into the OS interface layer (OSL) to allow the host OS to handle these operations if desired (for example, the Linux OSL will invoke the slab allocator). This support is optional; the compile time define ACPI_USE_LOCAL_CACHE may be used to utilize the original cache code in the ACPI CA core. The new OSL interfaces are shown below. See utalloc.c for an example implementation, and acpiosxf.h for the exact interface definitions. Thanks to Alexey Starikovskiy. acpi_os_create_cache acpi_os_delete_cache acpi_os_purge_cache acpi_os_acquire_object acpi_os_release_object Modified the interfaces to acpi_os_acquire_lock and acpi_os_release_lock to return and restore a flags parameter. This fits better with many OS lock models. Note: the current execution state (interrupt handler or not) is no longer passed to these interfaces. If necessary, the OSL must determine this state by itself, a simple and fast operation. Thanks to Alexey Starikovskiy. Fixed a problem in the ACPI table handling where a valid XSDT was assumed present if the revision of the RSDP was 2 or greater. According to the ACPI specification, the XSDT is optional in all cases, and the table manager therefore now checks for both an RSDP >=2 and a valid XSDT pointer. Otherwise, the RSDT pointer is used. Some ACPI 2.0 compliant BIOSs contain only the RSDT. Fixed an interpreter problem with the Mid() operator in the case of an input string where the resulting output string is of zero length. It now correctly returns a valid, null terminated string object instead of a string object with a null pointer. Fixed a problem with the control method argument handling to allow a store to an Arg object that already contains an object of type Device. The Device object is now correctly overwritten. Previously, an error was returned. ACPICA 20050624: Modified the new OSL cache interfaces to use ACPI_CACHE_T as the type for the host-defined cache object. This allows the OSL implementation to define and type this object in any manner desired, simplifying the OSL implementation. For example, ACPI_CACHE_T is defined as kmem_cache_t for Linux, and should be defined in the OS-specific header file for other operating systems as required. Changed the interface to AcpiOsAcquireObject to directly return the requested object as the function return (instead of ACPI_STATUS.) This change was made for performance reasons, since this is the purpose of the interface in the first place. acpi_os_acquire_object is now similar to the acpi_os_allocate interface. Thanks to Alexey Starikovskiy. Modified the initialization sequence in acpi_initialize_subsystem to call the OSL interface acpi_osl_initialize first, before any local initialization. This change was required because the global initialization now calls OSL interfaces. Restructured the code base to split some files because of size and/or because the code logically belonged in a separate file. New files are listed below. utilities/utcache.c /* Local cache interfaces */ utilities/utmutex.c /* Local mutex support */ utilities/utstate.c /* State object support */ parser/psloop.c /* Main AML parse loop */ Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/events')
-rw-r--r--drivers/acpi/events/evgpe.c5
-rw-r--r--drivers/acpi/events/evgpeblk.c27
-rw-r--r--drivers/acpi/events/evmisc.c4
-rw-r--r--drivers/acpi/events/evxface.c10
4 files changed, 26 insertions, 20 deletions
diff --git a/drivers/acpi/events/evgpe.c b/drivers/acpi/events/evgpe.c
index 081120b..ede834d 100644
--- a/drivers/acpi/events/evgpe.c
+++ b/drivers/acpi/events/evgpe.c
@@ -396,6 +396,7 @@ acpi_ev_gpe_detect (
struct acpi_gpe_register_info *gpe_register_info;
u32 status_reg;
u32 enable_reg;
+ u32 flags;
acpi_status status;
struct acpi_gpe_block_info *gpe_block;
acpi_native_uint i;
@@ -412,7 +413,7 @@ acpi_ev_gpe_detect (
/* Examine all GPE blocks attached to this interrupt level */
- acpi_os_acquire_lock (acpi_gbl_gpe_lock, ACPI_ISR);
+ flags = acpi_os_acquire_lock (acpi_gbl_gpe_lock);
gpe_block = gpe_xrupt_list->gpe_block_list_head;
while (gpe_block) {
/*
@@ -476,7 +477,7 @@ acpi_ev_gpe_detect (
unlock_and_exit:
- acpi_os_release_lock (acpi_gbl_gpe_lock, ACPI_ISR);
+ acpi_os_release_lock (acpi_gbl_gpe_lock, flags);
return (int_status);
}
diff --git a/drivers/acpi/events/evgpeblk.c b/drivers/acpi/events/evgpeblk.c
index ee5419b8..dfc5469 100644
--- a/drivers/acpi/events/evgpeblk.c
+++ b/drivers/acpi/events/evgpeblk.c
@@ -138,7 +138,6 @@ acpi_ev_valid_gpe_event (
* FUNCTION: acpi_ev_walk_gpe_list
*
* PARAMETERS: gpe_walk_callback - Routine called for each GPE block
- * Flags - ACPI_NOT_ISR or ACPI_ISR
*
* RETURN: Status
*
@@ -148,18 +147,18 @@ acpi_ev_valid_gpe_event (
acpi_status
acpi_ev_walk_gpe_list (
- ACPI_GPE_CALLBACK gpe_walk_callback,
- u32 flags)
+ ACPI_GPE_CALLBACK gpe_walk_callback)
{
struct acpi_gpe_block_info *gpe_block;
struct acpi_gpe_xrupt_info *gpe_xrupt_info;
acpi_status status = AE_OK;
+ u32 flags;
ACPI_FUNCTION_TRACE ("ev_walk_gpe_list");
- acpi_os_acquire_lock (acpi_gbl_gpe_lock, flags);
+ flags = acpi_os_acquire_lock (acpi_gbl_gpe_lock);
/* Walk the interrupt level descriptor list */
@@ -500,6 +499,7 @@ acpi_ev_get_gpe_xrupt_block (
struct acpi_gpe_xrupt_info *next_gpe_xrupt;
struct acpi_gpe_xrupt_info *gpe_xrupt;
acpi_status status;
+ u32 flags;
ACPI_FUNCTION_TRACE ("ev_get_gpe_xrupt_block");
@@ -527,7 +527,7 @@ acpi_ev_get_gpe_xrupt_block (
/* Install new interrupt descriptor with spin lock */
- acpi_os_acquire_lock (acpi_gbl_gpe_lock, ACPI_NOT_ISR);
+ flags = acpi_os_acquire_lock (acpi_gbl_gpe_lock);
if (acpi_gbl_gpe_xrupt_list_head) {
next_gpe_xrupt = acpi_gbl_gpe_xrupt_list_head;
while (next_gpe_xrupt->next) {
@@ -540,7 +540,7 @@ acpi_ev_get_gpe_xrupt_block (
else {
acpi_gbl_gpe_xrupt_list_head = gpe_xrupt;
}
- acpi_os_release_lock (acpi_gbl_gpe_lock, ACPI_NOT_ISR);
+ acpi_os_release_lock (acpi_gbl_gpe_lock, flags);
/* Install new interrupt handler if not SCI_INT */
@@ -577,6 +577,7 @@ acpi_ev_delete_gpe_xrupt (
struct acpi_gpe_xrupt_info *gpe_xrupt)
{
acpi_status status;
+ u32 flags;
ACPI_FUNCTION_TRACE ("ev_delete_gpe_xrupt");
@@ -599,7 +600,7 @@ acpi_ev_delete_gpe_xrupt (
/* Unlink the interrupt block with lock */
- acpi_os_acquire_lock (acpi_gbl_gpe_lock, ACPI_NOT_ISR);
+ flags = acpi_os_acquire_lock (acpi_gbl_gpe_lock);
if (gpe_xrupt->previous) {
gpe_xrupt->previous->next = gpe_xrupt->next;
}
@@ -607,7 +608,7 @@ acpi_ev_delete_gpe_xrupt (
if (gpe_xrupt->next) {
gpe_xrupt->next->previous = gpe_xrupt->previous;
}
- acpi_os_release_lock (acpi_gbl_gpe_lock, ACPI_NOT_ISR);
+ acpi_os_release_lock (acpi_gbl_gpe_lock, flags);
/* Free the block */
@@ -637,6 +638,7 @@ acpi_ev_install_gpe_block (
struct acpi_gpe_block_info *next_gpe_block;
struct acpi_gpe_xrupt_info *gpe_xrupt_block;
acpi_status status;
+ u32 flags;
ACPI_FUNCTION_TRACE ("ev_install_gpe_block");
@@ -655,7 +657,7 @@ acpi_ev_install_gpe_block (
/* Install the new block at the end of the list with lock */
- acpi_os_acquire_lock (acpi_gbl_gpe_lock, ACPI_NOT_ISR);
+ flags = acpi_os_acquire_lock (acpi_gbl_gpe_lock);
if (gpe_xrupt_block->gpe_block_list_head) {
next_gpe_block = gpe_xrupt_block->gpe_block_list_head;
while (next_gpe_block->next) {
@@ -670,7 +672,7 @@ acpi_ev_install_gpe_block (
}
gpe_block->xrupt_block = gpe_xrupt_block;
- acpi_os_release_lock (acpi_gbl_gpe_lock, ACPI_NOT_ISR);
+ acpi_os_release_lock (acpi_gbl_gpe_lock, flags);
unlock_and_exit:
status = acpi_ut_release_mutex (ACPI_MTX_EVENTS);
@@ -695,6 +697,7 @@ acpi_ev_delete_gpe_block (
struct acpi_gpe_block_info *gpe_block)
{
acpi_status status;
+ u32 flags;
ACPI_FUNCTION_TRACE ("ev_install_gpe_block");
@@ -720,7 +723,7 @@ acpi_ev_delete_gpe_block (
else {
/* Remove the block on this interrupt with lock */
- acpi_os_acquire_lock (acpi_gbl_gpe_lock, ACPI_NOT_ISR);
+ flags = acpi_os_acquire_lock (acpi_gbl_gpe_lock);
if (gpe_block->previous) {
gpe_block->previous->next = gpe_block->next;
}
@@ -731,7 +734,7 @@ acpi_ev_delete_gpe_block (
if (gpe_block->next) {
gpe_block->next->previous = gpe_block->previous;
}
- acpi_os_release_lock (acpi_gbl_gpe_lock, ACPI_NOT_ISR);
+ acpi_os_release_lock (acpi_gbl_gpe_lock, flags);
}
/* Free the gpe_block */
diff --git a/drivers/acpi/events/evmisc.c b/drivers/acpi/events/evmisc.c
index 659e909..38d7ab8 100644
--- a/drivers/acpi/events/evmisc.c
+++ b/drivers/acpi/events/evmisc.c
@@ -589,7 +589,7 @@ acpi_ev_terminate (
/* Disable all GPEs in all GPE blocks */
- status = acpi_ev_walk_gpe_list (acpi_hw_disable_gpe_block, ACPI_NOT_ISR);
+ status = acpi_ev_walk_gpe_list (acpi_hw_disable_gpe_block);
/* Remove SCI handler */
@@ -602,7 +602,7 @@ acpi_ev_terminate (
/* Deallocate all handler objects installed within GPE info structs */
- status = acpi_ev_walk_gpe_list (acpi_ev_delete_gpe_handlers, ACPI_NOT_ISR);
+ status = acpi_ev_walk_gpe_list (acpi_ev_delete_gpe_handlers);
/* Return to original mode if necessary */
diff --git a/drivers/acpi/events/evxface.c b/drivers/acpi/events/evxface.c
index 4092d47..4c1c25e 100644
--- a/drivers/acpi/events/evxface.c
+++ b/drivers/acpi/events/evxface.c
@@ -591,6 +591,7 @@ acpi_install_gpe_handler (
struct acpi_gpe_event_info *gpe_event_info;
struct acpi_handler_info *handler;
acpi_status status;
+ u32 flags;
ACPI_FUNCTION_TRACE ("acpi_install_gpe_handler");
@@ -643,7 +644,7 @@ acpi_install_gpe_handler (
/* Install the handler */
- acpi_os_acquire_lock (acpi_gbl_gpe_lock, ACPI_NOT_ISR);
+ flags = acpi_os_acquire_lock (acpi_gbl_gpe_lock);
gpe_event_info->dispatch.handler = handler;
/* Setup up dispatch flags to indicate handler (vs. method) */
@@ -651,7 +652,7 @@ acpi_install_gpe_handler (
gpe_event_info->flags &= ~(ACPI_GPE_XRUPT_TYPE_MASK | ACPI_GPE_DISPATCH_MASK); /* Clear bits */
gpe_event_info->flags |= (u8) (type | ACPI_GPE_DISPATCH_HANDLER);
- acpi_os_release_lock (acpi_gbl_gpe_lock, ACPI_NOT_ISR);
+ acpi_os_release_lock (acpi_gbl_gpe_lock, flags);
unlock_and_exit:
@@ -685,6 +686,7 @@ acpi_remove_gpe_handler (
struct acpi_gpe_event_info *gpe_event_info;
struct acpi_handler_info *handler;
acpi_status status;
+ u32 flags;
ACPI_FUNCTION_TRACE ("acpi_remove_gpe_handler");
@@ -741,7 +743,7 @@ acpi_remove_gpe_handler (
/* Remove the handler */
- acpi_os_acquire_lock (acpi_gbl_gpe_lock, ACPI_NOT_ISR);
+ flags = acpi_os_acquire_lock (acpi_gbl_gpe_lock);
handler = gpe_event_info->dispatch.handler;
/* Restore Method node (if any), set dispatch flags */
@@ -751,7 +753,7 @@ acpi_remove_gpe_handler (
if (handler->method_node) {
gpe_event_info->flags |= ACPI_GPE_DISPATCH_METHOD;
}
- acpi_os_release_lock (acpi_gbl_gpe_lock, ACPI_NOT_ISR);
+ acpi_os_release_lock (acpi_gbl_gpe_lock, flags);
/* Now we can free the handler object */
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