[ACPI] ACPICA 20050930

Completed a major overhaul of the Resource Manager code -
specifically, optimizations in the area of the AML/internal
resource conversion code. The code has been optimized to
simplify and eliminate duplicated code, CPU stack use has
been decreased by optimizing function parameters and local
variables, and naming conventions across the manager have
been standardized for clarity and ease of maintenance (this
includes function, parameter, variable, and struct/typedef
names.)

All Resource Manager dispatch and information tables have
been moved to a single location for clarity and ease of
maintenance. One new file was created, named "rsinfo.c".

The ACPI return macros (return_ACPI_STATUS, etc.) have
been modified to guarantee that the argument is
not evaluated twice, making them less prone to macro
side-effects. However, since there exists the possibility
of additional stack use if a particular compiler cannot
optimize them (such as in the debug generation case),
the original macros are optionally available.  Note that
some invocations of the return_VALUE macro may now cause
size mismatch warnings; the return_UINT8 and return_UINT32
macros are provided to eliminate these. (From Randy Dunlap)

Implemented a new mechanism to enable debug tracing for
individual control methods. A new external interface,
acpi_debug_trace(), is provided to enable this mechanism. The
intent is to allow the host OS to easily enable and disable
tracing for problematic control methods. This interface
can be easily exposed to a user or debugger interface if
desired. See the file psxface.c for details.

acpi_ut_callocate() will now return a valid pointer if a
length of zero is specified - a length of one is used
and a warning is issued. This matches the behavior of
acpi_ut_allocate().

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 24 insertions, 24 deletions

diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c
index 09567c2edcfb..726dda1fce1c 100644
--- a/drivers/acpi/pci_irq.c
+++ b/drivers/acpi/pci_irq.c
@@ -258,7 +258,7 @@ typedef int (*irq_lookup_func) (struct acpi_prt_entry *, int *, int *, char **);
 
 static int
 acpi_pci_allocate_irq(struct acpi_prt_entry *entry,
-                      int *edge_level, int *active_high_low, char **link)
+                      int *triggering, int *polarity, char **link)
 {
         int irq;
 
@@ -266,8 +266,8 @@ acpi_pci_allocate_irq(struct acpi_prt_entry *entry,
 
         if (entry->link.handle) {
                 irq = acpi_pci_link_allocate_irq(entry->link.handle,
-                                                 entry->link.index, edge_level,
-                                                 active_high_low, link);
+                                                 entry->link.index, triggering,
+                                                 polarity, link);
                 if (irq < 0) {
                         ACPI_DEBUG_PRINT((ACPI_DB_WARN,
                                           "Invalid IRQ link routing entry\n"));
@@ -275,8 +275,8 @@ acpi_pci_allocate_irq(struct acpi_prt_entry *entry,
                 }
         } else {
                 irq = entry->link.index;
-                *edge_level = ACPI_LEVEL_SENSITIVE;
-                *active_high_low = ACPI_ACTIVE_LOW;
+                *triggering = ACPI_LEVEL_SENSITIVE;
+                *polarity = ACPI_ACTIVE_LOW;
         }
 
         ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found IRQ %d\n", irq));
@@ -285,7 +285,7 @@ acpi_pci_allocate_irq(struct acpi_prt_entry *entry,
 
 static int
 acpi_pci_free_irq(struct acpi_prt_entry *entry,
-                  int *edge_level, int *active_high_low, char **link)
+                  int *triggering, int *polarity, char **link)
 {
         int irq;
 
@@ -307,8 +307,8 @@ static int
 acpi_pci_irq_lookup(struct pci_bus *bus,
                     int device,
                     int pin,
-                    int *edge_level,
-                    int *active_high_low, char **link, irq_lookup_func func)
+                    int *triggering,
+                    int *polarity, char **link, irq_lookup_func func)
 {
         struct acpi_prt_entry *entry = NULL;
         int segment = pci_domain_nr(bus);
@@ -327,7 +327,7 @@ acpi_pci_irq_lookup(struct pci_bus *bus,
                 return_VALUE(-1);
         }
 
-        ret = func(entry, edge_level, active_high_low, link);
+        ret = func(entry, triggering, polarity, link);
         return_VALUE(ret);
 }
 
@@ -339,8 +339,8 @@ acpi_pci_irq_lookup(struct pci_bus *bus,
 static int
 acpi_pci_irq_derive(struct pci_dev *dev,
                     int pin,
-                    int *edge_level,
-                    int *active_high_low, char **link, irq_lookup_func func)
+                    int *triggering,
+                    int *polarity, char **link, irq_lookup_func func)
 {
         struct pci_dev *bridge = dev;
         int irq = -1;
@@ -375,7 +375,7 @@ acpi_pci_irq_derive(struct pci_dev *dev,
                 }
 
                 irq = acpi_pci_irq_lookup(bridge->bus, PCI_SLOT(bridge->devfn),
-                                          pin, edge_level, active_high_low,
+                                          pin, triggering, polarity,
                                           link, func);
         }
 
@@ -402,8 +402,8 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
 {
         int irq = 0;
         u8 pin = 0;
-        int edge_level = ACPI_LEVEL_SENSITIVE;
-        int active_high_low = ACPI_ACTIVE_LOW;
+        int triggering = ACPI_LEVEL_SENSITIVE;
+        int polarity = ACPI_ACTIVE_LOW;
         char *link = NULL;
         int rc;
 
@@ -432,7 +432,7 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
          * values override any BIOS-assigned IRQs set during boot.
          */
         irq = acpi_pci_irq_lookup(dev->bus, PCI_SLOT(dev->devfn), pin,
-                                  &edge_level, &active_high_low, &link,
+                                  &triggering, &polarity, &link,
                                   acpi_pci_allocate_irq);
 
         /*
@@ -440,8 +440,8 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
          * device's parent bridge.
          */
         if (irq < 0)
-                irq = acpi_pci_irq_derive(dev, pin, &edge_level,
-                                          &active_high_low, &link,
+                irq = acpi_pci_irq_derive(dev, pin, &triggering,
+                                          &polarity, &link,
                                           acpi_pci_allocate_irq);
 
         /*
@@ -463,7 +463,7 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
                 }
         }
 
-        rc = acpi_register_gsi(irq, edge_level, active_high_low);
+        rc = acpi_register_gsi(irq, triggering, polarity);
         if (rc < 0) {
                 printk(KERN_WARNING PREFIX "PCI Interrupt %s[%c]: failed "
                        "to register GSI\n", pci_name(dev), ('A' + pin));
@@ -478,8 +478,8 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
                 printk("Link [%s] -> ", link);
 
         printk("GSI %u (%s, %s) -> IRQ %d\n", irq,
-               (edge_level == ACPI_LEVEL_SENSITIVE) ? "level" : "edge",
-               (active_high_low == ACPI_ACTIVE_LOW) ? "low" : "high", dev->irq);
+               (triggering == ACPI_LEVEL_SENSITIVE) ? "level" : "edge",
+               (polarity == ACPI_ACTIVE_LOW) ? "low" : "high", dev->irq);
 
         return_VALUE(0);
 }
@@ -495,8 +495,8 @@ void acpi_pci_irq_disable(struct pci_dev *dev)
 {
         int gsi = 0;
         u8 pin = 0;
-        int edge_level = ACPI_LEVEL_SENSITIVE;
-        int active_high_low = ACPI_ACTIVE_LOW;
+        int triggering = ACPI_LEVEL_SENSITIVE;
+        int polarity = ACPI_ACTIVE_LOW;
 
         ACPI_FUNCTION_TRACE("acpi_pci_irq_disable");
 
@@ -512,7 +512,7 @@ void acpi_pci_irq_disable(struct pci_dev *dev)
          * First we check the PCI IRQ routing table (PRT) for an IRQ.
          */
         gsi = acpi_pci_irq_lookup(dev->bus, PCI_SLOT(dev->devfn), pin,
-                                  &edge_level, &active_high_low, NULL,
+                                  &triggering, &polarity, NULL,
                                   acpi_pci_free_irq);
         /*
          * If no PRT entry was found, we'll try to derive an IRQ from the
@@ -520,7 +520,7 @@ void acpi_pci_irq_disable(struct pci_dev *dev)
          */
         if (gsi < 0)
                 gsi = acpi_pci_irq_derive(dev, pin,
-                                          &edge_level, &active_high_low, NULL,
+                                          &triggering, &polarity, NULL,
                                           acpi_pci_free_irq);
         if (gsi < 0)
                 return_VOID;