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From: Mike Rapoport <rppt@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>, Baoquan He <bhe@redhat.com>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Borislav Petkov <bp@alien8.de>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Christoph Hellwig <hch@lst.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	Emil Renner Berthing <kernel@esmil.dk>,
	Ingo Molnar <mingo@redhat.com>,
	Hari Bathini <hbathini@linux.ibm.com>,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	Max Filippov <jcmvbkbc@gmail.com>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Michal Simek <monstr@monstr.eu>,
	Mike Rapoport <rppt@linux.ibm.com>,
	Mike Rapoport <rppt@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Paul Mackerras <paulus@samba.org>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Peter Zijlstra <peterz@infradead.org>
Subject: [PATCH v2 07/17] mircoblaze: drop unneeded NUMA and sparsemem initializations
Date: Sun,  2 Aug 2020 19:35:51 +0300	[thread overview]
Message-ID: <20200802163601.8189-8-rppt@kernel.org> (raw)
In-Reply-To: <20200802163601.8189-1-rppt@kernel.org>

From: Mike Rapoport <rppt@linux.ibm.com>

microblaze does not support neither NUMA not SPARSMEM, so there is no point
to call memblock_set_node() and sparse_memory_present_with_active_regions()
functions during microblaze memory initialization.

Remove these calls and the surrounding code.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
---
 arch/microblaze/mm/init.c | 17 +----------------
 1 file changed, 1 insertion(+), 16 deletions(-)

diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index 521b59ba716c..49e0c241f9b1 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -105,9 +105,8 @@ static void __init paging_init(void)
 
 void __init setup_memory(void)
 {
-	struct memblock_region *reg;
-
 #ifndef CONFIG_MMU
+	struct memblock_region *reg;
 	u32 kernel_align_start, kernel_align_size;
 
 	/* Find main memory where is the kernel */
@@ -161,20 +160,6 @@ void __init setup_memory(void)
 	pr_info("%s: max_low_pfn: %#lx\n", __func__, max_low_pfn);
 	pr_info("%s: max_pfn: %#lx\n", __func__, max_pfn);
 
-	/* Add active regions with valid PFNs */
-	for_each_memblock(memory, reg) {
-		unsigned long start_pfn, end_pfn;
-
-		start_pfn = memblock_region_memory_base_pfn(reg);
-		end_pfn = memblock_region_memory_end_pfn(reg);
-		memblock_set_node(start_pfn << PAGE_SHIFT,
-				  (end_pfn - start_pfn) << PAGE_SHIFT,
-				  &memblock.memory, 0);
-	}
-
-	/* XXX need to clip this if using highmem? */
-	sparse_memory_present_with_active_regions(0);
-
 	paging_init();
 }
 
-- 
2.26.2

  parent reply	other threads:[~2020-08-02 16:37 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-02 16:35 [PATCH v2 00/17] memblock: seasonal cleaning^w cleanup Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 01/17] KVM: PPC: Book3S HV: simplify kvm_cma_reserve() Mike Rapoport
2020-08-04 13:53   ` Daniel Axtens
2020-08-02 16:35 ` [PATCH v2 02/17] dma-contiguous: simplify cma_early_percent_memory() Mike Rapoport
2020-08-05  3:50   ` Baoquan He
2020-08-02 16:35 ` [PATCH v2 03/17] arm, xtensa: simplify initialization of high memory pages Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 04/17] arm64: numa: simplify dummy_numa_init() Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 05/17] h8300, nds32, openrisc: simplify detection of memory extents Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 06/17] riscv: drop unneeded node initialization Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport [this message]
2020-08-02 16:35 ` [PATCH v2 08/17] memblock: make for_each_memblock_type() iterator private Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 09/17] memblock: make memblock_debug and related functionality private Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 10/17] memblock: reduce number of parameters in for_each_mem_range() Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 11/17] arch, mm: replace for_each_memblock() with for_each_mem_pfn_range() Mike Rapoport
2020-08-05  3:57   ` Baoquan He
2020-08-02 16:35 ` [PATCH v2 12/17] arch, drivers: replace for_each_membock() with for_each_mem_range() Mike Rapoport
2020-08-05 11:00   ` Thomas Bogendoerfer
2020-08-02 16:35 ` [PATCH v2 13/17] x86/setup: simplify initrd relocation and reservation Mike Rapoport
2020-08-02 18:01   ` Ingo Molnar
2020-08-05  4:20   ` Baoquan He
2020-08-05  5:59     ` Mike Rapoport
2020-08-05  5:59       ` Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 14/17] x86/setup: simplify reserve_crashkernel() Mike Rapoport
2020-08-02 18:02   ` Ingo Molnar
2020-08-05  6:00   ` Baoquan He
2020-08-02 16:35 ` [PATCH v2 15/17] memblock: remove unused memblock_mem_size() Mike Rapoport
2020-08-05  8:29   ` Baoquan He
     [not found] ` <20200802163601.8189-1-rppt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2020-08-02 16:36   ` [PATCH v2 16/17] memblock: implement for_each_reserved_mem_region() using __next_mem_region() Mike Rapoport
2020-08-05  9:11     ` Baoquan He
2020-08-05 17:11     ` Miguel Ojeda
2020-08-02 16:36 ` [PATCH v2 17/17] memblock: use separate iterators for memory and reserved regions Mike Rapoport
2020-08-02 18:03   ` Ingo Molnar
     [not found]   ` <20200802163601.8189-18-rppt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2020-08-05  9:29     ` Baoquan He
2020-08-05 10:58   ` Thomas Bogendoerfer
2020-08-05 17:10   ` Miguel Ojeda

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