Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 528 insertions, 0 deletions

diff --git a/drivers/acpi/executer/exregion.c b/drivers/acpi/executer/exregion.c
new file mode 100644
index 000000000000..7cfd0684c70b
--- /dev/null
+++ b/drivers/acpi/executer/exregion.c
@@ -0,0 +1,528 @@
+
+/******************************************************************************
+ *
+ * Module Name: exregion - ACPI default op_region (address space) handlers
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * 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 <acpi/acinterp.h>
+
+
+#define _COMPONENT          ACPI_EXECUTER
+         ACPI_MODULE_NAME    ("exregion")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_system_memory_space_handler
+ *
+ * PARAMETERS:  Function            - Read or Write operation
+ *              Address             - Where in the space to read or write
+ *              bit_width           - Field width in bits (8, 16, or 32)
+ *              Value               - Pointer to in or out value
+ *              handler_context     - Pointer to Handler's context
+ *              region_context      - Pointer to context specific to the
+ *                                    accessed region
+ *
+ * RETURN:      Status
+ *
+ * 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_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;
+#endif
+
+        ACPI_FUNCTION_TRACE ("ex_system_memory_space_handler");
+
+
+        /* Validate and translate the bit width */
+
+        switch (bit_width) {
+        case 8:
+                length = 1;
+                break;
+
+        case 16:
+                length = 2;
+                break;
+
+        case 32:
+                length = 4;
+                break;
+
+        case 64:
+                length = 8;
+                break;
+
+        default:
+                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
+        /*
+         * Hardware does not support non-aligned data transfers, we must verify
+         * the request.
+         */
+        (void) acpi_ut_short_divide ((acpi_integer) address, length, NULL, &remainder);
+        if (remainder != 0) {
+                return_ACPI_STATUS (AE_AML_ALIGNMENT);
+        }
+#endif
+
+        /*
+         * Does the request fit into the cached memory mapping?
+         * Is 1) Address below the current mapping? OR
+         *    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))) {
+                /*
+                 * The request cannot be resolved by the current memory mapping;
+                 * Delete the existing mapping and create a new one.
+                 */
+                if (mem_info->mapped_length) {
+                        /* Valid mapping, delete it */
+
+                        acpi_os_unmap_memory (mem_info->mapped_logical_address,
+                                           mem_info->mapped_length);
+                }
+
+                /*
+                 * Don't attempt to map memory beyond the end of the region, and
+                 * constrain the maximum mapping size to something reasonable.
+                 */
+                window_size = (acpi_size) ((mem_info->address + mem_info->length) - address);
+                if (window_size > ACPI_SYSMEM_REGION_WINDOW_SIZE) {
+                        window_size = ACPI_SYSMEM_REGION_WINDOW_SIZE;
+                }
+
+                /* 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));
+                        mem_info->mapped_length = 0;
+                        return_ACPI_STATUS (status);
+                }
+
+                /* Save the physical address and mapping size */
+
+                mem_info->mapped_physical_address = address;
+                mem_info->mapped_length = window_size;
+        }
+
+        /*
+         * Generate a logical pointer corresponding to the address we want to
+         * 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.
+        */
+        switch (function) {
+        case ACPI_READ:
+
+                *value = 0;
+                switch (bit_width) {
+                case 8:
+                        *value = (acpi_integer) *((u8 *) logical_addr_ptr);
+                        break;
+
+                case 16:
+                        *value = (acpi_integer) *((u16 *) logical_addr_ptr);
+                        break;
+
+                case 32:
+                        *value = (acpi_integer) *((u32 *) logical_addr_ptr);
+                        break;
+
+#if ACPI_MACHINE_WIDTH != 16
+                case 64:
+                        *value = (acpi_integer) *((u64 *) logical_addr_ptr);
+                        break;
+#endif
+                default:
+                        /* bit_width was already validated */
+                        break;
+                }
+                break;
+
+        case ACPI_WRITE:
+
+                switch (bit_width) {
+                case 8:
+                        *(u8 *) logical_addr_ptr = (u8) *value;
+                        break;
+
+                case 16:
+                        *(u16 *) logical_addr_ptr = (u16) *value;
+                        break;
+
+                case 32:
+                        *(u32 *) logical_addr_ptr = (u32) *value;
+                        break;
+
+#if ACPI_MACHINE_WIDTH != 16
+                case 64:
+                        *(u64 *) logical_addr_ptr = (u64) *value;
+                        break;
+#endif
+
+                default:
+                        /* bit_width was already validated */
+                        break;
+                }
+                break;
+
+        default:
+                status = AE_BAD_PARAMETER;
+                break;
+        }
+
+        return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_system_io_space_handler
+ *
+ * PARAMETERS:  Function            - Read or Write operation
+ *              Address             - Where in the space to read or write
+ *              bit_width           - Field width in bits (8, 16, or 32)
+ *              Value               - Pointer to in or out value
+ *              handler_context     - Pointer to Handler's context
+ *              region_context      - Pointer to context specific to the
+ *                                    accessed region
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Handler for the System IO address space (Op Region)
+ *
+ ******************************************************************************/
+
+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_status                     status = AE_OK;
+        u32                             value32;
+
+
+        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)));
+
+        /* Decode the function parameter */
+
+        switch (function) {
+        case ACPI_READ:
+
+                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);
+                break;
+
+        default:
+                status = AE_BAD_PARAMETER;
+                break;
+        }
+
+        return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_pci_config_space_handler
+ *
+ * PARAMETERS:  Function            - Read or Write operation
+ *              Address             - Where in the space to read or write
+ *              bit_width           - Field width in bits (8, 16, or 32)
+ *              Value               - Pointer to in or out value
+ *              handler_context     - Pointer to Handler's context
+ *              region_context      - Pointer to context specific to the
+ *                                    accessed region
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Handler for the PCI Config address space (Op Region)
+ *
+ ******************************************************************************/
+
+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_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:
+         *
+         *  pci_segment is the PCI bus segment range 0-31
+         *  pci_bus     is the PCI bus number range 0-255
+         *  pci_device  is the PCI device number range 0-31
+         *  pci_function is the PCI device function number
+         *  pci_register is the Config space register range 0-255 bytes
+         *
+         *  Value - input value for write, output address for read
+         *
+         */
+        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));
+
+        switch (function) {
+        case ACPI_READ:
+
+                *value = 0;
+                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);
+                break;
+
+        default:
+
+                status = AE_BAD_PARAMETER;
+                break;
+        }
+
+        return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_cmos_space_handler
+ *
+ * PARAMETERS:  Function            - Read or Write operation
+ *              Address             - Where in the space to read or write
+ *              bit_width           - Field width in bits (8, 16, or 32)
+ *              Value               - Pointer to in or out value
+ *              handler_context     - Pointer to Handler's context
+ *              region_context      - Pointer to context specific to the
+ *                                    accessed region
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Handler for the CMOS address space (Op Region)
+ *
+ ******************************************************************************/
+
+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_status                     status = AE_OK;
+
+
+        ACPI_FUNCTION_TRACE ("ex_cmos_space_handler");
+
+
+        return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_pci_bar_space_handler
+ *
+ * PARAMETERS:  Function            - Read or Write operation
+ *              Address             - Where in the space to read or write
+ *              bit_width           - Field width in bits (8, 16, or 32)
+ *              Value               - Pointer to in or out value
+ *              handler_context     - Pointer to Handler's context
+ *              region_context      - Pointer to context specific to the
+ *                                    accessed region
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Handler for the PCI bar_target address space (Op Region)
+ *
+ ******************************************************************************/
+
+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_status                     status = AE_OK;
+
+
+        ACPI_FUNCTION_TRACE ("ex_pci_bar_space_handler");
+
+
+        return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_data_table_space_handler
+ *
+ * PARAMETERS:  Function            - Read or Write operation
+ *              Address             - Where in the space to read or write
+ *              bit_width           - Field width in bits (8, 16, or 32)
+ *              Value               - Pointer to in or out value
+ *              handler_context     - Pointer to Handler's context
+ *              region_context      - Pointer to context specific to the
+ *                                    accessed region
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Handler for the Data Table address space (Op Region)
+ *
+ ******************************************************************************/
+
+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_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");
+
+
+        logical_addr_ptr = ACPI_PHYSADDR_TO_PTR (address);
+
+
+   /* Perform the memory read or write */
+
+        switch (function) {
+        case ACPI_READ:
+
+                for (i = 0; i < byte_width; i++) {
+                        ((char *) value) [i] = logical_addr_ptr[i];
+                }
+                break;
+
+        case ACPI_WRITE:
+        default:
+
+                return_ACPI_STATUS (AE_SUPPORT);
+        }
+
+        return_ACPI_STATUS (status);
+}
+
+