From: Mike Rapoport <rppt@kernel.org>
To: openrisc@lists.librecores.org
Subject: [OpenRISC] [PATCH 06/15] powerpc: fadamp: simplify fadump_reserve_crash_area()
Date: Tue, 28 Jul 2020 05:13:14 -0000 [thread overview]
Message-ID: <20200728051153.1590-7-rppt@kernel.org> (raw)
In-Reply-To: <20200728051153.1590-1-rppt@kernel.org>
From: Mike Rapoport <rppt@linux.ibm.com>
fadump_reserve_crash_area() reserves memory from a specified base address
till the end of the RAM.
Replace iteration through the memblock.memory with a single call to
memblock_reserve() with appropriate that will take care of proper memory
reservation.
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
---
arch/powerpc/kernel/fadump.c | 20 +-------------------
1 file changed, 1 insertion(+), 19 deletions(-)
diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c
index 78ab9a6ee6ac..2446a61e3c25 100644
--- a/arch/powerpc/kernel/fadump.c
+++ b/arch/powerpc/kernel/fadump.c
@@ -1658,25 +1658,7 @@ int __init fadump_reserve_mem(void)
/* Preserve everything above the base address */
static void __init fadump_reserve_crash_area(u64 base)
{
- struct memblock_region *reg;
- u64 mstart, msize;
-
- for_each_memblock(memory, reg) {
- mstart = reg->base;
- msize = reg->size;
-
- if ((mstart + msize) < base)
- continue;
-
- if (mstart < base) {
- msize -= (base - mstart);
- mstart = base;
- }
-
- pr_info("Reserving %lluMB of memory@%#016llx for preserving crash data",
- (msize >> 20), mstart);
- memblock_reserve(mstart, msize);
- }
+ memblock_reserve(base, memblock_end_of_DRAM() - base);
}
unsigned long __init arch_reserved_kernel_pages(void)
--
2.26.2
next prev parent reply other threads:[~2020-07-28 5:13 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-28 5:12 [OpenRISC] [PATCH 00/15] memblock: seasonal cleaning^w cleanup Mike Rapoport
2020-07-28 5:12 ` [OpenRISC] [PATCH 01/15] KVM: PPC: Book3S HV: simplify kvm_cma_reserve() Mike Rapoport
2020-07-28 5:12 ` [OpenRISC] [PATCH 02/15] dma-contiguous: simplify cma_early_percent_memory() Mike Rapoport
2020-07-28 6:37 ` Christoph Hellwig
2020-07-28 5:12 ` [OpenRISC] [PATCH 03/15] arm, xtensa: simplify initialization of high memory pages Mike Rapoport
2020-07-28 8:09 ` Max Filippov
2020-07-28 5:12 ` [OpenRISC] [PATCH 04/15] arm64: numa: simplify dummy_numa_init() Mike Rapoport
2020-07-29 8:31 ` Jonathan Cameron
2020-07-30 12:04 ` Catalin Marinas
2020-07-28 5:13 ` [OpenRISC] [PATCH 05/15] h8300, nds32, openrisc: simplify detection of memory extents Mike Rapoport
2020-07-29 11:42 ` Stafford Horne
2020-07-28 5:13 ` Mike Rapoport [this message]
2020-07-30 12:15 ` [OpenRISC] [PATCH 06/15] powerpc: fadamp: simplify fadump_reserve_crash_area() Michael Ellerman
2020-08-01 10:19 ` Mike Rapoport
2020-08-01 10:54 ` Hari Bathini
2020-08-02 13:14 ` Michael Ellerman
2020-07-28 5:13 ` [OpenRISC] [PATCH 07/15] riscv: drop unneeded node initialization Mike Rapoport
2020-07-28 5:13 ` [OpenRISC] [PATCH 08/15] mircoblaze: drop unneeded NUMA and sparsemem initializations Mike Rapoport
2020-07-28 5:13 ` [OpenRISC] [PATCH 09/15] memblock: make for_each_memblock_type() iterator private Mike Rapoport
2020-07-30 1:52 ` Baoquan He
2020-07-28 5:13 ` [OpenRISC] [PATCH 10/15] memblock: make memblock_debug and related functionality private Mike Rapoport
2020-07-30 1:54 ` Baoquan He
2020-07-28 5:14 ` [OpenRISC] [PATCH 11/15] memblock: reduce number of parameters in for_each_mem_range() Mike Rapoport
2020-07-30 2:22 ` Baoquan He
2020-07-28 5:14 ` [OpenRISC] [PATCH 12/15] arch, mm: replace for_each_memblock() with for_each_mem_pfn_range() Mike Rapoport
2020-07-28 5:14 ` [OpenRISC] [PATCH 13/15] arch, drivers: replace for_each_membock() with for_each_mem_range() Mike Rapoport
2020-07-28 15:03 ` Emil Renner Berthing
2020-07-28 5:14 ` [OpenRISC] [PATCH 14/15] x86/numa: remove redundant iteration over memblock.reserved Mike Rapoport
2020-07-28 10:44 ` Ingo Molnar
2020-07-28 10:56 ` Mike Rapoport
2020-07-28 11:31 ` Ingo Molnar
2020-07-28 11:03 ` Baoquan He
2020-07-28 14:15 ` Mike Rapoport
2020-07-28 14:24 ` Baoquan He
2020-07-28 5:14 ` [OpenRISC] [PATCH 15/15] memblock: remove 'type' parameter from for_each_memblock() Mike Rapoport
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