2 # Copyright (c) 2009 Nathan Whitehorn
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6 # modification, are permitted provided that the following conditions
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29 #include <sys/param.h>
31 #include <sys/mutex.h>
32 #include <sys/systm.h>
34 #include <machine/platform.h>
35 #include <machine/platformvar.h>
36 #include <machine/smp.h>
39 * @defgroup PLATFORM platform - KObj methods for PowerPC platform
41 * @brief A set of methods required by all platform implementations.
42 * These are used to bring up secondary CPUs, supply the physical memory
50 # Default implementations
53 static void platform_null_attach(platform_t plat)
57 static int platform_null_smp_first_cpu(platform_t plat,
58 struct cpuref *cpuref)
60 cpuref->cr_hwref = -1;
64 static int platform_null_smp_next_cpu(platform_t plat,
65 struct cpuref *_cpuref)
72 * @brief Probe for whether we are on this platform, returning the standard
73 * newbus probe codes. If we have Open Firmware or a flattened device tree,
74 * it is guaranteed to be available at this point.
82 * @brief Attach this platform module. This happens before the MMU is online,
83 * so the platform module can install its own high-priority MMU module at
88 } DEFAULT platform_null_attach;
92 * @brief Return the system's physical memory map.
94 * It shall provide the total and the available regions of RAM.
95 * The available regions need not take the kernel into account.
97 * @param _memp Array of physical memory chunks
98 * @param _memsz Number of physical memory chunks
99 * @param _availp Array of available physical memory chunks
100 * @param _availsz Number of available physical memory chunks
103 METHOD void mem_regions {
105 struct mem_region **_memp;
107 struct mem_region **_availp;
112 * @brief Get the CPU's timebase frequency, in ticks per second.
114 * @param _cpu CPU whose timebase to query
117 METHOD u_long timebase_freq {
125 * @brief Fill the first CPU's cpuref
129 METHOD int smp_first_cpu {
131 struct cpuref *_cpuref;
132 } DEFAULT platform_null_smp_first_cpu;
135 * @brief Fill the next CPU's cpuref
139 METHOD int smp_next_cpu {
141 struct cpuref *_cpuref;
142 } DEFAULT platform_null_smp_next_cpu;
145 * @brief Find the boot processor
149 METHOD int smp_get_bsp {
151 struct cpuref *_cpuref;
152 } DEFAULT platform_null_smp_first_cpu;
159 METHOD int smp_start_cpu {