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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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ff24b07abb
Historically a lot of these existed because we did not have a distinction between what was modular code and what was providing support to modules via EXPORT_SYMBOL and friends. That changed when we forked out support for the latter into the export.h file. This means we should be able to reduce the usage of module.h in code that is obj-y Makefile or bool Kconfig. The advantage in doing so is that module.h itself sources about 15 other headers; adding significantly to what we feed cpp, and it can obscure what headers we are effectively using. Since module.h was the source for init.h (for __init) and for export.h (for EXPORT_SYMBOL) we consider each change instance for the presence of either and replace as needed. An instance where module_param was used without moduleparam.h was also fixed, as well as an implict use of asm/elf.h header. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
/*
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* Copyright IBM Corp. 2008, 2009
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*
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* Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
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*/
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#include <linux/kernel.h>
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#include <linux/memblock.h>
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#include <linux/init.h>
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#include <linux/debugfs.h>
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#include <linux/seq_file.h>
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#include <asm/ipl.h>
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#include <asm/sclp.h>
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#include <asm/setup.h>
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#define CHUNK_READ_WRITE 0
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#define CHUNK_READ_ONLY 1
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static inline void memblock_physmem_add(phys_addr_t start, phys_addr_t size)
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{
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memblock_dbg("memblock_physmem_add: [%#016llx-%#016llx]\n",
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start, start + size - 1);
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memblock_add_range(&memblock.memory, start, size, 0, 0);
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memblock_add_range(&memblock.physmem, start, size, 0, 0);
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}
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void __init detect_memory_memblock(void)
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{
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unsigned long memsize, rnmax, rzm, addr, size;
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int type;
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rzm = sclp.rzm;
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rnmax = sclp.rnmax;
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memsize = rzm * rnmax;
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if (!rzm)
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rzm = 1UL << 17;
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max_physmem_end = memsize;
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addr = 0;
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/* keep memblock lists close to the kernel */
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memblock_set_bottom_up(true);
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do {
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size = 0;
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/* assume lowcore is writable */
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type = addr ? tprot(addr) : CHUNK_READ_WRITE;
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do {
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size += rzm;
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if (max_physmem_end && addr + size >= max_physmem_end)
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break;
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} while (type == tprot(addr + size));
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if (type == CHUNK_READ_WRITE || type == CHUNK_READ_ONLY) {
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if (max_physmem_end && (addr + size > max_physmem_end))
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size = max_physmem_end - addr;
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memblock_physmem_add(addr, size);
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}
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addr += size;
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} while (addr < max_physmem_end);
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memblock_set_bottom_up(false);
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if (!max_physmem_end)
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max_physmem_end = memblock_end_of_DRAM();
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memblock_dump_all();
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}
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