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f5c1e1c5a6
ACPICA commit b2294cae776f5a66a7697414b21949d307e6856f This patch removes unwanted spaces for typedef. This solution doesn't cover function types. Note that the linuxize result of this commit is very giant and should have many conflicts against the current Linux upstream. Thus it is required to modify the linuxize result of this commit and the commits around it manually in order to have them merged to the Linux upstream. Since this is very costy, we should do this only once, and if we can't ensure to do this only once, we need to revert the Linux code to the wrong indentation result before merging the linuxize result of this commit. Lv Zheng. Link: https://github.com/acpica/acpica/commit/b2294cae Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
540 lines
15 KiB
C
540 lines
15 KiB
C
/******************************************************************************
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*
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* Module Name: exregion - ACPI default op_region (address space) handlers
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2016, Intel Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#include <acpi/acpi.h>
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#include "accommon.h"
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#include "acinterp.h"
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#define _COMPONENT ACPI_EXECUTER
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ACPI_MODULE_NAME("exregion")
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/*******************************************************************************
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*
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* FUNCTION: acpi_ex_system_memory_space_handler
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*
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* PARAMETERS: function - Read or Write operation
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* address - Where in the space to read or write
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* bit_width - Field width in bits (8, 16, or 32)
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* value - Pointer to in or out value
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* handler_context - Pointer to Handler's context
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* region_context - Pointer to context specific to the
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* accessed region
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*
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* RETURN: Status
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*
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* DESCRIPTION: Handler for the System Memory address space (Op Region)
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*
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******************************************************************************/
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acpi_status
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acpi_ex_system_memory_space_handler(u32 function,
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acpi_physical_address address,
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u32 bit_width,
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u64 *value,
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void *handler_context, void *region_context)
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{
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acpi_status status = AE_OK;
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void *logical_addr_ptr = NULL;
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struct acpi_mem_space_context *mem_info = region_context;
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u32 length;
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acpi_size map_length;
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acpi_size page_boundary_map_length;
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#ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED
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u32 remainder;
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#endif
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ACPI_FUNCTION_TRACE(ex_system_memory_space_handler);
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/* Validate and translate the bit width */
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switch (bit_width) {
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case 8:
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length = 1;
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break;
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case 16:
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length = 2;
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break;
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case 32:
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length = 4;
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break;
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case 64:
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length = 8;
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break;
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default:
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ACPI_ERROR((AE_INFO, "Invalid SystemMemory width %u",
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bit_width));
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return_ACPI_STATUS(AE_AML_OPERAND_VALUE);
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}
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#ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED
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/*
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* Hardware does not support non-aligned data transfers, we must verify
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* the request.
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*/
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(void)acpi_ut_short_divide((u64) address, length, NULL, &remainder);
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if (remainder != 0) {
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return_ACPI_STATUS(AE_AML_ALIGNMENT);
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}
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#endif
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/*
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* Does the request fit into the cached memory mapping?
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* Is 1) Address below the current mapping? OR
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* 2) Address beyond the current mapping?
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*/
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if ((address < mem_info->mapped_physical_address) ||
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(((u64) address + length) > ((u64)
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mem_info->mapped_physical_address +
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mem_info->mapped_length))) {
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/*
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* The request cannot be resolved by the current memory mapping;
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* Delete the existing mapping and create a new one.
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*/
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if (mem_info->mapped_length) {
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/* Valid mapping, delete it */
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acpi_os_unmap_memory(mem_info->mapped_logical_address,
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mem_info->mapped_length);
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}
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/*
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* October 2009: Attempt to map from the requested address to the
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* end of the region. However, we will never map more than one
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* page, nor will we cross a page boundary.
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*/
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map_length = (acpi_size)
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((mem_info->address + mem_info->length) - address);
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/*
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* If mapping the entire remaining portion of the region will cross
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* a page boundary, just map up to the page boundary, do not cross.
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* On some systems, crossing a page boundary while mapping regions
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* can cause warnings if the pages have different attributes
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* due to resource management.
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*
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* This has the added benefit of constraining a single mapping to
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* one page, which is similar to the original code that used a 4k
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* maximum window.
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*/
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page_boundary_map_length = (acpi_size)
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(ACPI_ROUND_UP(address, ACPI_DEFAULT_PAGE_SIZE) - address);
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if (page_boundary_map_length == 0) {
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page_boundary_map_length = ACPI_DEFAULT_PAGE_SIZE;
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}
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if (map_length > page_boundary_map_length) {
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map_length = page_boundary_map_length;
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}
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/* Create a new mapping starting at the address given */
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mem_info->mapped_logical_address =
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acpi_os_map_memory(address, map_length);
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if (!mem_info->mapped_logical_address) {
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ACPI_ERROR((AE_INFO,
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"Could not map memory at 0x%8.8X%8.8X, size %u",
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ACPI_FORMAT_UINT64(address),
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(u32)map_length));
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mem_info->mapped_length = 0;
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return_ACPI_STATUS(AE_NO_MEMORY);
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}
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/* Save the physical address and mapping size */
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mem_info->mapped_physical_address = address;
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mem_info->mapped_length = map_length;
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}
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/*
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* Generate a logical pointer corresponding to the address we want to
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* access
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*/
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logical_addr_ptr = mem_info->mapped_logical_address +
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((u64) address - (u64) mem_info->mapped_physical_address);
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ACPI_DEBUG_PRINT((ACPI_DB_INFO,
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"System-Memory (width %u) R/W %u Address=%8.8X%8.8X\n",
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bit_width, function, ACPI_FORMAT_UINT64(address)));
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/*
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* Perform the memory read or write
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*
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* Note: For machines that do not support non-aligned transfers, the target
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* address was checked for alignment above. We do not attempt to break the
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* transfer up into smaller (byte-size) chunks because the AML specifically
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* asked for a transfer width that the hardware may require.
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*/
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switch (function) {
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case ACPI_READ:
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*value = 0;
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switch (bit_width) {
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case 8:
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*value = (u64)ACPI_GET8(logical_addr_ptr);
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break;
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case 16:
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*value = (u64)ACPI_GET16(logical_addr_ptr);
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break;
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case 32:
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*value = (u64)ACPI_GET32(logical_addr_ptr);
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break;
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case 64:
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*value = (u64)ACPI_GET64(logical_addr_ptr);
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break;
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default:
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/* bit_width was already validated */
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break;
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}
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break;
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case ACPI_WRITE:
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switch (bit_width) {
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case 8:
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ACPI_SET8(logical_addr_ptr, *value);
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break;
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case 16:
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ACPI_SET16(logical_addr_ptr, *value);
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break;
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case 32:
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ACPI_SET32(logical_addr_ptr, *value);
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break;
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case 64:
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ACPI_SET64(logical_addr_ptr, *value);
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break;
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default:
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/* bit_width was already validated */
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break;
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}
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break;
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default:
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status = AE_BAD_PARAMETER;
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break;
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}
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return_ACPI_STATUS(status);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ex_system_io_space_handler
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*
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* PARAMETERS: function - Read or Write operation
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* address - Where in the space to read or write
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* bit_width - Field width in bits (8, 16, or 32)
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* value - Pointer to in or out value
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* handler_context - Pointer to Handler's context
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* region_context - Pointer to context specific to the
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* accessed region
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*
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* RETURN: Status
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*
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* DESCRIPTION: Handler for the System IO address space (Op Region)
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*
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******************************************************************************/
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acpi_status
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acpi_ex_system_io_space_handler(u32 function,
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acpi_physical_address address,
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u32 bit_width,
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u64 *value,
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void *handler_context, void *region_context)
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{
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acpi_status status = AE_OK;
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u32 value32;
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ACPI_FUNCTION_TRACE(ex_system_io_space_handler);
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ACPI_DEBUG_PRINT((ACPI_DB_INFO,
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"System-IO (width %u) R/W %u Address=%8.8X%8.8X\n",
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bit_width, function, ACPI_FORMAT_UINT64(address)));
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/* Decode the function parameter */
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switch (function) {
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case ACPI_READ:
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status = acpi_hw_read_port((acpi_io_address)address,
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&value32, bit_width);
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*value = value32;
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break;
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case ACPI_WRITE:
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status = acpi_hw_write_port((acpi_io_address)address,
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(u32)*value, bit_width);
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break;
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default:
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status = AE_BAD_PARAMETER;
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break;
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}
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return_ACPI_STATUS(status);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ex_pci_config_space_handler
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*
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* PARAMETERS: function - Read or Write operation
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* address - Where in the space to read or write
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* bit_width - Field width in bits (8, 16, or 32)
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* value - Pointer to in or out value
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* handler_context - Pointer to Handler's context
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* region_context - Pointer to context specific to the
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* accessed region
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*
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* RETURN: Status
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*
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* DESCRIPTION: Handler for the PCI Config address space (Op Region)
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*
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******************************************************************************/
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acpi_status
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acpi_ex_pci_config_space_handler(u32 function,
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acpi_physical_address address,
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u32 bit_width,
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u64 *value,
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void *handler_context, void *region_context)
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{
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acpi_status status = AE_OK;
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struct acpi_pci_id *pci_id;
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u16 pci_register;
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ACPI_FUNCTION_TRACE(ex_pci_config_space_handler);
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/*
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* The arguments to acpi_os(Read|Write)pci_configuration are:
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*
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* pci_segment is the PCI bus segment range 0-31
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* pci_bus is the PCI bus number range 0-255
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* pci_device is the PCI device number range 0-31
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* pci_function is the PCI device function number
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* pci_register is the Config space register range 0-255 bytes
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*
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* value - input value for write, output address for read
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*
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*/
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pci_id = (struct acpi_pci_id *)region_context;
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pci_register = (u16) (u32) address;
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ACPI_DEBUG_PRINT((ACPI_DB_INFO,
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"Pci-Config %u (%u) Seg(%04x) Bus(%04x) "
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"Dev(%04x) Func(%04x) Reg(%04x)\n",
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function, bit_width, pci_id->segment, pci_id->bus,
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pci_id->device, pci_id->function, pci_register));
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switch (function) {
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case ACPI_READ:
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*value = 0;
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status =
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acpi_os_read_pci_configuration(pci_id, pci_register, value,
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bit_width);
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break;
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case ACPI_WRITE:
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status =
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acpi_os_write_pci_configuration(pci_id, pci_register,
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*value, bit_width);
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break;
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default:
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status = AE_BAD_PARAMETER;
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break;
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}
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return_ACPI_STATUS(status);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ex_cmos_space_handler
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*
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* PARAMETERS: function - Read or Write operation
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* address - Where in the space to read or write
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* bit_width - Field width in bits (8, 16, or 32)
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* value - Pointer to in or out value
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* handler_context - Pointer to Handler's context
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* region_context - Pointer to context specific to the
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* accessed region
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*
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* RETURN: Status
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*
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* DESCRIPTION: Handler for the CMOS address space (Op Region)
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*
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******************************************************************************/
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acpi_status
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acpi_ex_cmos_space_handler(u32 function,
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acpi_physical_address address,
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u32 bit_width,
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u64 *value,
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void *handler_context, void *region_context)
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{
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acpi_status status = AE_OK;
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ACPI_FUNCTION_TRACE(ex_cmos_space_handler);
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return_ACPI_STATUS(status);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ex_pci_bar_space_handler
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*
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* PARAMETERS: function - Read or Write operation
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* address - Where in the space to read or write
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* bit_width - Field width in bits (8, 16, or 32)
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* value - Pointer to in or out value
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* handler_context - Pointer to Handler's context
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* region_context - Pointer to context specific to the
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* accessed region
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*
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* RETURN: Status
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*
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* DESCRIPTION: Handler for the PCI bar_target address space (Op Region)
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*
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******************************************************************************/
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acpi_status
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acpi_ex_pci_bar_space_handler(u32 function,
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acpi_physical_address address,
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u32 bit_width,
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u64 *value,
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void *handler_context, void *region_context)
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{
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acpi_status status = AE_OK;
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ACPI_FUNCTION_TRACE(ex_pci_bar_space_handler);
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return_ACPI_STATUS(status);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ex_data_table_space_handler
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*
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* PARAMETERS: function - Read or Write operation
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* address - Where in the space to read or write
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* bit_width - Field width in bits (8, 16, or 32)
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* value - Pointer to in or out value
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* handler_context - Pointer to Handler's context
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* region_context - Pointer to context specific to the
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* accessed region
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*
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* RETURN: Status
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*
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* DESCRIPTION: Handler for the Data Table address space (Op Region)
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*
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******************************************************************************/
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acpi_status
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acpi_ex_data_table_space_handler(u32 function,
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acpi_physical_address address,
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u32 bit_width,
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u64 *value,
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void *handler_context, void *region_context)
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{
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ACPI_FUNCTION_TRACE(ex_data_table_space_handler);
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/*
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* Perform the memory read or write. The bit_width was already
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* validated.
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*/
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switch (function) {
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case ACPI_READ:
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memcpy(ACPI_CAST_PTR(char, value),
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ACPI_PHYSADDR_TO_PTR(address), ACPI_DIV_8(bit_width));
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break;
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case ACPI_WRITE:
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memcpy(ACPI_PHYSADDR_TO_PTR(address),
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ACPI_CAST_PTR(char, value), ACPI_DIV_8(bit_width));
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break;
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default:
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return_ACPI_STATUS(AE_BAD_PARAMETER);
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}
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return_ACPI_STATUS(AE_OK);
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}
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