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Diffstat (limited to 'drivers/acpi/executer/exregion.c')
-rw-r--r--drivers/acpi/executer/exregion.c280
1 files changed, 125 insertions, 155 deletions
diff --git a/drivers/acpi/executer/exregion.c b/drivers/acpi/executer/exregion.c
index 723aaef4bb4..9a2f5bea3af 100644
--- a/drivers/acpi/executer/exregion.c
+++ b/drivers/acpi/executer/exregion.c
@@ -42,14 +42,11 @@
* POSSIBILITY OF SUCH DAMAGES.
*/
-
#include <acpi/acpi.h>
#include <acpi/acinterp.h>
-
#define _COMPONENT ACPI_EXECUTER
- ACPI_MODULE_NAME ("exregion")
-
+ACPI_MODULE_NAME("exregion")
/*******************************************************************************
*
@@ -68,27 +65,23 @@
* DESCRIPTION: Handler for the System Memory address space (Op Region)
*
******************************************************************************/
-
acpi_status
-acpi_ex_system_memory_space_handler (
- u32 function,
- acpi_physical_address address,
- u32 bit_width,
- acpi_integer *value,
- void *handler_context,
- void *region_context)
+acpi_ex_system_memory_space_handler(u32 function,
+ acpi_physical_address address,
+ u32 bit_width,
+ acpi_integer * value,
+ void *handler_context, void *region_context)
{
- acpi_status status = AE_OK;
- void *logical_addr_ptr = NULL;
- struct acpi_mem_space_context *mem_info = region_context;
- u32 length;
- acpi_size window_size;
+ acpi_status status = AE_OK;
+ void *logical_addr_ptr = NULL;
+ struct acpi_mem_space_context *mem_info = region_context;
+ u32 length;
+ acpi_size window_size;
#ifndef ACPI_MISALIGNED_TRANSFERS
- u32 remainder;
+ u32 remainder;
#endif
- ACPI_FUNCTION_TRACE ("ex_system_memory_space_handler");
-
+ ACPI_FUNCTION_TRACE("ex_system_memory_space_handler");
/* Validate and translate the bit width */
@@ -110,9 +103,10 @@ acpi_ex_system_memory_space_handler (
break;
default:
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Invalid system_memory width %d\n",
- bit_width));
- return_ACPI_STATUS (AE_AML_OPERAND_VALUE);
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Invalid system_memory width %d\n",
+ bit_width));
+ return_ACPI_STATUS(AE_AML_OPERAND_VALUE);
}
#ifndef ACPI_MISALIGNED_TRANSFERS
@@ -120,9 +114,10 @@ acpi_ex_system_memory_space_handler (
* Hardware does not support non-aligned data transfers, we must verify
* the request.
*/
- (void) acpi_ut_short_divide ((acpi_integer) address, length, NULL, &remainder);
+ (void)acpi_ut_short_divide((acpi_integer) address, length, NULL,
+ &remainder);
if (remainder != 0) {
- return_ACPI_STATUS (AE_AML_ALIGNMENT);
+ return_ACPI_STATUS(AE_AML_ALIGNMENT);
}
#endif
@@ -132,9 +127,10 @@ acpi_ex_system_memory_space_handler (
* 2) Address beyond the current mapping?
*/
if ((address < mem_info->mapped_physical_address) ||
- (((acpi_integer) address + length) >
- ((acpi_integer)
- mem_info->mapped_physical_address + mem_info->mapped_length))) {
+ (((acpi_integer) address + length) > ((acpi_integer)
+ mem_info->
+ mapped_physical_address +
+ mem_info->mapped_length))) {
/*
* The request cannot be resolved by the current memory mapping;
* Delete the existing mapping and create a new one.
@@ -142,8 +138,8 @@ acpi_ex_system_memory_space_handler (
if (mem_info->mapped_length) {
/* Valid mapping, delete it */
- acpi_os_unmap_memory (mem_info->mapped_logical_address,
- mem_info->mapped_length);
+ acpi_os_unmap_memory(mem_info->mapped_logical_address,
+ mem_info->mapped_length);
}
/*
@@ -151,7 +147,7 @@ acpi_ex_system_memory_space_handler (
* constrain the maximum mapping size to something reasonable.
*/
window_size = (acpi_size)
- ((mem_info->address + mem_info->length) - address);
+ ((mem_info->address + mem_info->length) - address);
if (window_size > ACPI_SYSMEM_REGION_WINDOW_SIZE) {
window_size = ACPI_SYSMEM_REGION_WINDOW_SIZE;
@@ -159,14 +155,16 @@ acpi_ex_system_memory_space_handler (
/* Create a new mapping starting at the address given */
- status = acpi_os_map_memory (address, window_size,
- (void **) &mem_info->mapped_logical_address);
- if (ACPI_FAILURE (status)) {
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
- "Could not map memory at %8.8X%8.8X, size %X\n",
- ACPI_FORMAT_UINT64 (address), (u32) window_size));
+ status = acpi_os_map_memory(address, window_size,
+ (void **)&mem_info->
+ mapped_logical_address);
+ if (ACPI_FAILURE(status)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Could not map memory at %8.8X%8.8X, size %X\n",
+ ACPI_FORMAT_UINT64(address),
+ (u32) window_size));
mem_info->mapped_length = 0;
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
/* Save the physical address and mapping size */
@@ -180,42 +178,41 @@ acpi_ex_system_memory_space_handler (
* access
*/
logical_addr_ptr = mem_info->mapped_logical_address +
- ((acpi_integer) address -
- (acpi_integer) mem_info->mapped_physical_address);
-
- ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
- "system_memory %d (%d width) Address=%8.8X%8.8X\n",
- function, bit_width,
- ACPI_FORMAT_UINT64 (address)));
-
- /*
- * Perform the memory read or write
- *
- * Note: For machines that do not support non-aligned transfers, the target
- * address was checked for alignment above. We do not attempt to break the
- * transfer up into smaller (byte-size) chunks because the AML specifically
- * asked for a transfer width that the hardware may require.
- */
+ ((acpi_integer) address -
+ (acpi_integer) mem_info->mapped_physical_address);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "system_memory %d (%d width) Address=%8.8X%8.8X\n",
+ function, bit_width, ACPI_FORMAT_UINT64(address)));
+
+ /*
+ * Perform the memory read or write
+ *
+ * Note: For machines that do not support non-aligned transfers, the target
+ * address was checked for alignment above. We do not attempt to break the
+ * transfer up into smaller (byte-size) chunks because the AML specifically
+ * asked for a transfer width that the hardware may require.
+ */
switch (function) {
case ACPI_READ:
*value = 0;
switch (bit_width) {
case 8:
- *value = (acpi_integer) *((u8 *) logical_addr_ptr);
+ *value = (acpi_integer) * ((u8 *) logical_addr_ptr);
break;
case 16:
- *value = (acpi_integer) *((u16 *) logical_addr_ptr);
+ *value = (acpi_integer) * ((u16 *) logical_addr_ptr);
break;
case 32:
- *value = (acpi_integer) *((u32 *) logical_addr_ptr);
+ *value = (acpi_integer) * ((u32 *) logical_addr_ptr);
break;
#if ACPI_MACHINE_WIDTH != 16
case 64:
- *value = (acpi_integer) *((u64 *) logical_addr_ptr);
+ *value = (acpi_integer) * ((u64 *) logical_addr_ptr);
break;
#endif
default:
@@ -228,20 +225,20 @@ acpi_ex_system_memory_space_handler (
switch (bit_width) {
case 8:
- *(u8 *) logical_addr_ptr = (u8) *value;
+ *(u8 *) logical_addr_ptr = (u8) * value;
break;
case 16:
- *(u16 *) logical_addr_ptr = (u16) *value;
+ *(u16 *) logical_addr_ptr = (u16) * value;
break;
case 32:
- *(u32 *) logical_addr_ptr = (u32) *value;
+ *(u32 *) logical_addr_ptr = (u32) * value;
break;
#if ACPI_MACHINE_WIDTH != 16
case 64:
- *(u64 *) logical_addr_ptr = (u64) *value;
+ *(u64 *) logical_addr_ptr = (u64) * value;
break;
#endif
@@ -256,10 +253,9 @@ acpi_ex_system_memory_space_handler (
break;
}
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ex_system_io_space_handler
@@ -279,39 +275,35 @@ acpi_ex_system_memory_space_handler (
******************************************************************************/
acpi_status
-acpi_ex_system_io_space_handler (
- u32 function,
- acpi_physical_address address,
- u32 bit_width,
- acpi_integer *value,
- void *handler_context,
- void *region_context)
+acpi_ex_system_io_space_handler(u32 function,
+ acpi_physical_address address,
+ u32 bit_width,
+ acpi_integer * value,
+ void *handler_context, void *region_context)
{
- acpi_status status = AE_OK;
- u32 value32;
+ acpi_status status = AE_OK;
+ u32 value32;
+ ACPI_FUNCTION_TRACE("ex_system_io_space_handler");
- ACPI_FUNCTION_TRACE ("ex_system_io_space_handler");
-
-
- ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
- "system_iO %d (%d width) Address=%8.8X%8.8X\n", function, bit_width,
- ACPI_FORMAT_UINT64 (address)));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "system_iO %d (%d width) Address=%8.8X%8.8X\n",
+ function, bit_width, ACPI_FORMAT_UINT64(address)));
/* Decode the function parameter */
switch (function) {
case ACPI_READ:
- status = acpi_os_read_port ((acpi_io_address) address,
- &value32, bit_width);
+ status = acpi_os_read_port((acpi_io_address) address,
+ &value32, bit_width);
*value = value32;
break;
case ACPI_WRITE:
- status = acpi_os_write_port ((acpi_io_address) address,
- (u32) *value, bit_width);
+ status = acpi_os_write_port((acpi_io_address) address,
+ (u32) * value, bit_width);
break;
default:
@@ -319,10 +311,9 @@ acpi_ex_system_io_space_handler (
break;
}
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ex_pci_config_space_handler
@@ -342,21 +333,17 @@ acpi_ex_system_io_space_handler (
******************************************************************************/
acpi_status
-acpi_ex_pci_config_space_handler (
- u32 function,
- acpi_physical_address address,
- u32 bit_width,
- acpi_integer *value,
- void *handler_context,
- void *region_context)
+acpi_ex_pci_config_space_handler(u32 function,
+ acpi_physical_address address,
+ u32 bit_width,
+ acpi_integer * value,
+ void *handler_context, void *region_context)
{
- acpi_status status = AE_OK;
- struct acpi_pci_id *pci_id;
- u16 pci_register;
-
-
- ACPI_FUNCTION_TRACE ("ex_pci_config_space_handler");
+ acpi_status status = AE_OK;
+ struct acpi_pci_id *pci_id;
+ u16 pci_register;
+ ACPI_FUNCTION_TRACE("ex_pci_config_space_handler");
/*
* The arguments to acpi_os(Read|Write)pci_configuration are:
@@ -370,26 +357,26 @@ acpi_ex_pci_config_space_handler (
* Value - input value for write, output address for read
*
*/
- pci_id = (struct acpi_pci_id *) region_context;
+ pci_id = (struct acpi_pci_id *)region_context;
pci_register = (u16) (u32) address;
- ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
- "pci_config %d (%d) Seg(%04x) Bus(%04x) Dev(%04x) Func(%04x) Reg(%04x)\n",
- function, bit_width, pci_id->segment, pci_id->bus, pci_id->device,
- pci_id->function, pci_register));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "pci_config %d (%d) Seg(%04x) Bus(%04x) Dev(%04x) Func(%04x) Reg(%04x)\n",
+ function, bit_width, pci_id->segment, pci_id->bus,
+ pci_id->device, pci_id->function, pci_register));
switch (function) {
case ACPI_READ:
*value = 0;
- status = acpi_os_read_pci_configuration (pci_id, pci_register,
- value, bit_width);
+ status = acpi_os_read_pci_configuration(pci_id, pci_register,
+ value, bit_width);
break;
case ACPI_WRITE:
- status = acpi_os_write_pci_configuration (pci_id, pci_register,
- *value, bit_width);
+ status = acpi_os_write_pci_configuration(pci_id, pci_register,
+ *value, bit_width);
break;
default:
@@ -398,10 +385,9 @@ acpi_ex_pci_config_space_handler (
break;
}
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ex_cmos_space_handler
@@ -421,24 +407,19 @@ acpi_ex_pci_config_space_handler (
******************************************************************************/
acpi_status
-acpi_ex_cmos_space_handler (
- u32 function,
- acpi_physical_address address,
- u32 bit_width,
- acpi_integer *value,
- void *handler_context,
- void *region_context)
+acpi_ex_cmos_space_handler(u32 function,
+ acpi_physical_address address,
+ u32 bit_width,
+ acpi_integer * value,
+ void *handler_context, void *region_context)
{
- acpi_status status = AE_OK;
-
+ acpi_status status = AE_OK;
- ACPI_FUNCTION_TRACE ("ex_cmos_space_handler");
+ ACPI_FUNCTION_TRACE("ex_cmos_space_handler");
-
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ex_pci_bar_space_handler
@@ -458,24 +439,19 @@ acpi_ex_cmos_space_handler (
******************************************************************************/
acpi_status
-acpi_ex_pci_bar_space_handler (
- u32 function,
- acpi_physical_address address,
- u32 bit_width,
- acpi_integer *value,
- void *handler_context,
- void *region_context)
+acpi_ex_pci_bar_space_handler(u32 function,
+ acpi_physical_address address,
+ u32 bit_width,
+ acpi_integer * value,
+ void *handler_context, void *region_context)
{
- acpi_status status = AE_OK;
-
+ acpi_status status = AE_OK;
- ACPI_FUNCTION_TRACE ("ex_pci_bar_space_handler");
+ ACPI_FUNCTION_TRACE("ex_pci_bar_space_handler");
-
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ex_data_table_space_handler
@@ -495,24 +471,20 @@ acpi_ex_pci_bar_space_handler (
******************************************************************************/
acpi_status
-acpi_ex_data_table_space_handler (
- u32 function,
- acpi_physical_address address,
- u32 bit_width,
- acpi_integer *value,
- void *handler_context,
- void *region_context)
+acpi_ex_data_table_space_handler(u32 function,
+ acpi_physical_address address,
+ u32 bit_width,
+ acpi_integer * value,
+ void *handler_context, void *region_context)
{
- acpi_status status = AE_OK;
- u32 byte_width = ACPI_DIV_8 (bit_width);
- u32 i;
- char *logical_addr_ptr;
-
+ acpi_status status = AE_OK;
+ u32 byte_width = ACPI_DIV_8(bit_width);
+ u32 i;
+ char *logical_addr_ptr;
- ACPI_FUNCTION_TRACE ("ex_data_table_space_handler");
+ ACPI_FUNCTION_TRACE("ex_data_table_space_handler");
-
- logical_addr_ptr = ACPI_PHYSADDR_TO_PTR (address);
+ logical_addr_ptr = ACPI_PHYSADDR_TO_PTR(address);
/* Perform the memory read or write */
@@ -520,17 +492,15 @@ acpi_ex_data_table_space_handler (
case ACPI_READ:
for (i = 0; i < byte_width; i++) {
- ((char *) value) [i] = logical_addr_ptr[i];
+ ((char *)value)[i] = logical_addr_ptr[i];
}
break;
case ACPI_WRITE:
default:
- return_ACPI_STATUS (AE_SUPPORT);
+ return_ACPI_STATUS(AE_SUPPORT);
}
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
-
-