Integrate uACPI

kernel/uACPI/include/uacpi/platform/config.h

@@ -0,0 +1,162 @@
+#pragma once
+
+#ifdef UACPI_OVERRIDE_CONFIG
+#include "uacpi_config.h"
+#else
+
+#include <uacpi/helpers.h>
+#include <uacpi/log.h>
+
+/*
+ * =======================
+ * Context-related options
+ * =======================
+ */
+#ifndef UACPI_DEFAULT_LOG_LEVEL
+    #define UACPI_DEFAULT_LOG_LEVEL UACPI_LOG_INFO
+#endif
+
+UACPI_BUILD_BUG_ON_WITH_MSG(
+    UACPI_DEFAULT_LOG_LEVEL < UACPI_LOG_ERROR ||
+    UACPI_DEFAULT_LOG_LEVEL > UACPI_LOG_DEBUG,
+    "configured default log level is invalid"
+);
+
+#ifndef UACPI_DEFAULT_LOOP_TIMEOUT_SECONDS
+    #define UACPI_DEFAULT_LOOP_TIMEOUT_SECONDS 30
+#endif
+
+UACPI_BUILD_BUG_ON_WITH_MSG(
+    UACPI_DEFAULT_LOOP_TIMEOUT_SECONDS < 1,
+    "configured default loop timeout is invalid (expecting at least 1 second)"
+);
+
+#ifndef UACPI_DEFAULT_MAX_CALL_STACK_DEPTH
+    #define UACPI_DEFAULT_MAX_CALL_STACK_DEPTH 256
+#endif
+
+UACPI_BUILD_BUG_ON_WITH_MSG(
+    UACPI_DEFAULT_MAX_CALL_STACK_DEPTH < 4,
+    "configured default max call stack depth is invalid "
+    "(expecting at least 4 frames)"
+);
+
+/*
+ * ===================
+ * Kernel-api options
+ * ===================
+ */
+
+/*
+ * Convenience initialization/deinitialization hooks that will be called by
+ * uACPI automatically when appropriate if compiled-in.
+ */
+// #define UACPI_KERNEL_INITIALIZATION
+
+/*
+ * Makes kernel api logging callbacks work with unformatted printf-style
+ * strings and va_args instead of a pre-formatted string. Can be useful if
+ * your native logging is implemented in terms of this format as well.
+ */
+// #define UACPI_FORMATTED_LOGGING
+
+/*
+ * Makes uacpi_kernel_free take in an additional 'size_hint' parameter, which
+ * contains the size of the original allocation. Note that this comes with a
+ * performance penalty in some cases.
+ */
+// #define UACPI_SIZED_FREES
+
+
+/*
+ * Makes uacpi_kernel_alloc_zeroed mandatory to implement by the host, uACPI
+ * will not provide a default implementation if this is enabled.
+ */
+// #define UACPI_NATIVE_ALLOC_ZEROED
+
+/*
+ * =========================
+ * Platform-specific options
+ * =========================
+ */
+
+/*
+ * Makes uACPI use the internal versions of mem{cpy,move,set,cmp} instead of
+ * relying on the host to provide them. Note that compilers like clang and GCC
+ * rely on these being available by default, even in freestanding mode, so
+ * compiling uACPI may theoretically generate implicit dependencies on them
+ * even if this option is defined.
+ */
+// #define UACPI_USE_BUILTIN_STRING
+
+/*
+ * Turns uacpi_phys_addr and uacpi_io_addr into a 32-bit type, and adds extra
+ * code for address truncation. Needed for e.g. i686 platforms without PAE
+ * support.
+ */
+// #define UACPI_PHYS_ADDR_IS_32BITS
+
+/*
+ * Switches uACPI into reduced-hardware-only mode. Strips all full-hardware
+ * ACPI support code at compile-time, including the event subsystem, the global
+ * lock, and other full-hardware features.
+ */
+// #define UACPI_REDUCED_HARDWARE
+
+/*
+ * Switches uACPI into tables-subsystem-only mode and strips all other code.
+ * This means only the table API will be usable, no other subsystems are
+ * compiled in. In this mode, uACPI only depends on the following kernel APIs:
+ * - uacpi_kernel_get_rsdp
+ * - uacpi_kernel_{map,unmap}
+ * - uacpi_kernel_log
+ *
+ * Use uacpi_setup_early_table_access to initialize, uacpi_state_reset to
+ * deinitialize.
+ *
+ * This mode is primarily designed for these three use-cases:
+ * - Bootloader/pre-kernel environments that need to parse ACPI tables, but
+ *   don't actually need a fully-featured AML interpreter, and everything else
+ *   that a full APCI implementation entails.
+ * - A micro-kernel that has the full AML interpreter running in userspace, but
+ *   still needs to parse ACPI tables to bootstrap allocators, timers, SMP etc.
+ * - A WIP kernel that needs to parse ACPI tables for bootrapping SMP/timers,
+ *   ECAM, etc., but doesn't yet have enough subsystems implemented in order
+ *   to run a fully-featured AML interpreter.
+ */
+// #define UACPI_BAREBONES_MODE
+
+/*
+ * =============
+ * Misc. options
+ * =============
+ */
+
+/*
+ * If UACPI_FORMATTED_LOGGING is not enabled, this is the maximum length of the
+ * pre-formatted message that is passed to the logging callback.
+ */
+#ifndef UACPI_PLAIN_LOG_BUFFER_SIZE
+    #define UACPI_PLAIN_LOG_BUFFER_SIZE 128
+#endif
+
+UACPI_BUILD_BUG_ON_WITH_MSG(
+    UACPI_PLAIN_LOG_BUFFER_SIZE < 16,
+    "configured log buffer size is too small (expecting at least 16 bytes)"
+);
+
+/*
+ * The size of the table descriptor inline storage. All table descriptors past
+ * this length will be stored in a dynamically allocated heap array. The size
+ * of one table descriptor is approximately 56 bytes.
+ */
+#ifndef UACPI_STATIC_TABLE_ARRAY_LEN
+    #define UACPI_STATIC_TABLE_ARRAY_LEN 16
+#endif
+
+UACPI_BUILD_BUG_ON_WITH_MSG(
+    UACPI_STATIC_TABLE_ARRAY_LEN < 1,
+    "configured static table array length is too small (expecting at least 1)"
+);
+
+#endif