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bh=ZYR3GBWOTbbLeEGoi1OsOkKb8CEKMyuyBWdLENWnJ1E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=m1XiJCmbrGx1o925QNv8c/Bp6H5XPTpfeJ1QGf/lnbyqfmruYKi1v8ifq7YUyQIAR mOZ35o8Tc86vDo4Lj7DwV982KPoM3khuhgabjNvcxndzkeQsxV3GQCIW74zG8fnva1 XoxYm1fjkSfMwhRHIMQT4Ivgbg9mEYH8FxQPW2cc= From: Mike Rapoport To: Andrew Morton Subject: [PATCH v3 05/17] h8300, nds32, openrisc: simplify detection of memory extents Date: Tue, 18 Aug 2020 18:16:22 +0300 Message-Id: <20200818151634.14343-6-rppt@kernel.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200818151634.14343-1-rppt@kernel.org> References: <20200818151634.14343-1-rppt@kernel.org> MIME-Version: 1.0 Cc: Thomas Gleixner , Emil Renner Berthing , linux-sh@vger.kernel.org, Peter Zijlstra , Benjamin Herrenschmidt , Dave Hansen , linux-mips@vger.kernel.org, Max Filippov , Paul Mackerras , sparclinux@vger.kernel.org, linux-riscv@lists.infradead.org, Will Deacon , Christoph Hellwig , linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, linux-c6x-dev@linux-c6x.org, Michael Ellerman , x86@kernel.org, Russell King , Mike Rapoport , clang-built-linux@googlegroups.com, Ingo Molnar , linux-arm-kernel@lists.infradead.org, Catalin Marinas , uclinux-h8-devel@lists.sourceforge.jp, linux-xtensa@linux-xtensa.org, openrisc@lists.librecores.org, Borislav Petkov , Andy Lutomirski , Paul Walmsley , Stafford Horne , Hari Bathini , Daniel Axtens , Michal Simek , Yoshinori Sato , linux-mm@kvack.org, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, Palmer Dabbelt , linuxppc-dev@lists.ozlabs.org, Mike Rapoport X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" From: Mike Rapoport Instead of traversing memblock.memory regions to find memory_start and memory_end, simply query memblock_{start,end}_of_DRAM(). Signed-off-by: Mike Rapoport Acked-by: Stafford Horne --- arch/h8300/kernel/setup.c | 8 +++----- arch/nds32/kernel/setup.c | 8 ++------ arch/openrisc/kernel/setup.c | 9 ++------- 3 files changed, 7 insertions(+), 18 deletions(-) diff --git a/arch/h8300/kernel/setup.c b/arch/h8300/kernel/setup.c index 28ac88358a89..0281f92eea3d 100644 --- a/arch/h8300/kernel/setup.c +++ b/arch/h8300/kernel/setup.c @@ -74,17 +74,15 @@ static void __init bootmem_init(void) memory_end = memory_start = 0; /* Find main memory where is the kernel */ - for_each_memblock(memory, region) { - memory_start = region->base; - memory_end = region->base + region->size; - } + memory_start = memblock_start_of_DRAM(); + memory_end = memblock_end_of_DRAM(); if (!memory_end) panic("No memory!"); /* setup bootmem globals (we use no_bootmem, but mm still depends on this) */ min_low_pfn = PFN_UP(memory_start); - max_low_pfn = PFN_DOWN(memblock_end_of_DRAM()); + max_low_pfn = PFN_DOWN(memory_end); max_pfn = max_low_pfn; memblock_reserve(__pa(_stext), _end - _stext); diff --git a/arch/nds32/kernel/setup.c b/arch/nds32/kernel/setup.c index a066efbe53c0..c356e484dcab 100644 --- a/arch/nds32/kernel/setup.c +++ b/arch/nds32/kernel/setup.c @@ -249,12 +249,8 @@ static void __init setup_memory(void) memory_end = memory_start = 0; /* Find main memory where is the kernel */ - for_each_memblock(memory, region) { - memory_start = region->base; - memory_end = region->base + region->size; - pr_info("%s: Memory: 0x%x-0x%x\n", __func__, - memory_start, memory_end); - } + memory_start = memblock_start_of_DRAM(); + memory_end = memblock_end_of_DRAM(); if (!memory_end) { panic("No memory!"); diff --git a/arch/openrisc/kernel/setup.c b/arch/openrisc/kernel/setup.c index b18e775f8be3..5a5940f7ebb1 100644 --- a/arch/openrisc/kernel/setup.c +++ b/arch/openrisc/kernel/setup.c @@ -48,17 +48,12 @@ static void __init setup_memory(void) unsigned long ram_start_pfn; unsigned long ram_end_pfn; phys_addr_t memory_start, memory_end; - struct memblock_region *region; memory_end = memory_start = 0; /* Find main memory where is the kernel, we assume its the only one */ - for_each_memblock(memory, region) { - memory_start = region->base; - memory_end = region->base + region->size; - printk(KERN_INFO "%s: Memory: 0x%x-0x%x\n", __func__, - memory_start, memory_end); - } + memory_start = memblock_start_of_DRAM(); + memory_end = memblock_end_of_DRAM(); if (!memory_end) { panic("No memory!"); -- 2.26.2 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu