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Merge tag 'memblock-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
Pull memblock updates from Mike Rapoport: "Test suite and a small cleanup: - A small cleanup of unused variable in __next_mem_pfn_range_in_zone - Initial test suite to simulate memblock behaviour in userspace" * tag 'memblock-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock: (27 commits) memblock tests: Add TODO and README files memblock tests: Add memblock_alloc_try_nid tests for bottom up memblock tests: Add memblock_alloc_try_nid tests for top down memblock tests: Add memblock_alloc_from tests for bottom up memblock tests: Add memblock_alloc_from tests for top down memblock tests: Add memblock_alloc tests for bottom up memblock tests: Add memblock_alloc tests for top down memblock tests: Add simulation of physical memory memblock tests: Split up reset_memblock function memblock tests: Fix testing with 32-bit physical addresses memblock: __next_mem_pfn_range_in_zone: remove unneeded local variable nid memblock tests: Add memblock_free tests memblock tests: Add memblock_add_node test memblock tests: Add memblock_remove tests memblock tests: Add memblock_reserve tests memblock tests: Add memblock_add tests memblock tests: Add memblock reset function memblock tests: Add skeleton of the memblock simulator tools/include: Add debugfs.h stub tools/include: Add pfn.h stub ...
2 parents 88b3be5 + 58ffc34 commit 02f9a04

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‎MAINTAINERS‎

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@@ -12550,6 +12550,7 @@ S: Maintained
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F: Documentation/core-api/boot-time-mm.rst
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F: include/linux/memblock.h
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F: mm/memblock.c
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F: tools/testing/memblock/
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MEMORY CONTROLLER DRIVERS
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M: Krzysztof Kozlowski <[email protected]>

‎mm/memblock.c‎

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{
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int zone_nid = zone_to_nid(zone);
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phys_addr_t spa, epa;
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int nid;
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__next_mem_range(idx, zone_nid, MEMBLOCK_NONE,
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&memblock.memory, &memblock.reserved,
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&spa, &epa, &nid);
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&spa, &epa, NULL);
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while (*idx != U64_MAX) {
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unsigned long epfn = PFN_DOWN(epa);
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__next_mem_range(idx, zone_nid, MEMBLOCK_NONE,
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&memblock.memory, &memblock.reserved,
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&spa, &epa, &nid);
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&spa, &epa, NULL);
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}
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/* signal end of iteration */

‎tools/include/linux/atomic.h‎

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#include <asm/atomic.h>
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void atomic_long_set(atomic_long_t *v, long i);
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/* atomic_cmpxchg_relaxed */
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#ifndef atomic_cmpxchg_relaxed
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#define atomic_cmpxchg_relaxed atomic_cmpxchg

‎tools/include/linux/cache.h‎

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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _TOOLS_LINUX_CACHE_H
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#define _TOOLS_LINUX_CACHE_H
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#define L1_CACHE_SHIFT 5
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#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
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#define SMP_CACHE_BYTES L1_CACHE_BYTES
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#endif

‎tools/include/linux/debugfs.h‎

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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _TOOLS_DEBUGFS_H
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#define _TOOLS_DEBUGFS_H
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#endif

‎tools/include/linux/gfp.h‎

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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _TOOLS_INCLUDE_LINUX_GFP_H
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#define _TOOLS_INCLUDE_LINUX_GFP_H
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#include <linux/types.h>
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#define __GFP_BITS_SHIFT 26
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#define __GFP_BITS_MASK ((gfp_t)((1 << __GFP_BITS_SHIFT) - 1))
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#define __GFP_HIGH 0x20u
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#define __GFP_IO 0x40u
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#define __GFP_FS 0x80u
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#define __GFP_NOWARN 0x200u
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#define __GFP_ZERO 0x8000u
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#define __GFP_ATOMIC 0x80000u
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#define __GFP_ACCOUNT 0x100000u
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#define __GFP_DIRECT_RECLAIM 0x400000u
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#define __GFP_KSWAPD_RECLAIM 0x2000000u
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#define __GFP_RECLAIM (__GFP_DIRECT_RECLAIM | __GFP_KSWAPD_RECLAIM)
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#define GFP_ZONEMASK 0x0fu
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#define GFP_ATOMIC (__GFP_HIGH | __GFP_ATOMIC | __GFP_KSWAPD_RECLAIM)
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#define GFP_KERNEL (__GFP_RECLAIM | __GFP_IO | __GFP_FS)
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#define GFP_NOWAIT (__GFP_KSWAPD_RECLAIM)
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static inline bool gfpflags_allow_blocking(const gfp_t gfp_flags)
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{
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return !!(gfp_flags & __GFP_DIRECT_RECLAIM);
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}
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#endif /* _TOOLS_INCLUDE_LINUX_GFP_H */

‎tools/include/linux/io.h‎

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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _TOOLS_IO_H
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#define _TOOLS_IO_H
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#endif

‎tools/include/linux/kernel.h‎

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#define UINT_MAX (~0U)
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#endif
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#define _RET_IP_ ((unsigned long)__builtin_return_address(0))
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#define PERF_ALIGN(x, a) __PERF_ALIGN_MASK(x, (typeof(x))(a)-1)
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#define __PERF_ALIGN_MASK(x, mask) (((x)+(mask))&~(mask))
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_min1 < _min2 ? _min1 : _min2; })
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#endif
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#define max_t(type, x, y) max((type)x, (type)y)
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#define min_t(type, x, y) min((type)x, (type)y)
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#define clamp(val, lo, hi) min((typeof(val))max(val, lo), hi)
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#ifndef BUG_ON
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#ifdef NDEBUG
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#define BUG_ON(cond) do { if (cond) {} } while (0)

‎tools/include/linux/mm.h‎

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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _TOOLS_LINUX_MM_H
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#define _TOOLS_LINUX_MM_H
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#include <linux/mmzone.h>
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#include <uapi/linux/const.h>
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#define PAGE_SHIFT 12
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#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
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#define PAGE_MASK (~(PAGE_SIZE - 1))
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#define PHYS_ADDR_MAX (~(phys_addr_t)0)
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#define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1)
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#define __ALIGN_KERNEL_MASK(x, mask) (((x) + (mask)) & ~(mask))
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#define ALIGN(x, a) __ALIGN_KERNEL((x), (a))
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#define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a))
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#define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE)
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#define __va(x) ((void *)((unsigned long)(x)))
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#define __pa(x) ((unsigned long)(x))
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#define pfn_to_page(pfn) ((void *)((pfn) * PAGE_SIZE))
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#define phys_to_virt phys_to_virt
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static inline void *phys_to_virt(unsigned long address)
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{
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return __va(address);
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}
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void reserve_bootmem_region(phys_addr_t start, phys_addr_t end);
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static inline void totalram_pages_inc(void)
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{
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}
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static inline void totalram_pages_add(long count)
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{
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}
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#endif

‎tools/include/linux/pfn.h‎

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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _TOOLS_LINUX_PFN_H_
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#define _TOOLS_LINUX_PFN_H_
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#include <linux/mm.h>
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#define PFN_UP(x) (((x) + PAGE_SIZE - 1) >> PAGE_SHIFT)
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#define PFN_DOWN(x) ((x) >> PAGE_SHIFT)
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#define PFN_PHYS(x) ((phys_addr_t)(x) << PAGE_SHIFT)
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#endif

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