From: Baoquan He <bhe@redhat.com>
To: Mike Rapoport <rppt@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Andy Lutomirski <luto@kernel.org>,
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>,
Palmer Dabbelt <palmer@dabbelt.com>,
Paul Mackerras <paulus@samba.org>,
Paul Walmsley <paul.walmsley@sifive.com>,
Peter Zijlstra <peterz@infradead.org>,
Russell
Subject: Re: [PATCH v2 02/17] dma-contiguous: simplify cma_early_percent_memory()
Date: Wed, 05 Aug 2020 03:50:24 +0000 [thread overview]
Message-ID: <20200805035024.GR10792@MiWiFi-R3L-srv> (raw)
In-Reply-To: <20200802163601.8189-3-rppt@kernel.org>
On 08/02/20 at 07:35pm, Mike Rapoport wrote:
> From: Mike Rapoport <rppt@linux.ibm.com>
>
> The memory size calculation in cma_early_percent_memory() traverses
> memblock.memory rather than simply call memblock_phys_mem_size(). The
> comment in that function suggests that at some point there should have been
> call to memblock_analyze() before memblock_phys_mem_size() could be used.
> As of now, there is no memblock_analyze() at all and
> memblock_phys_mem_size() can be used as soon as cold-plug memory is
> registerd with memblock.
>
> Replace loop over memblock.memory with a call to memblock_phys_mem_size().
>
> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> ---
> kernel/dma/contiguous.c | 11 +----------
> 1 file changed, 1 insertion(+), 10 deletions(-)
>
> diff --git a/kernel/dma/contiguous.c b/kernel/dma/contiguous.c
> index 15bc5026c485..1992afd8ca7b 100644
> --- a/kernel/dma/contiguous.c
> +++ b/kernel/dma/contiguous.c
> @@ -73,16 +73,7 @@ early_param("cma", early_cma);
>
> static phys_addr_t __init __maybe_unused cma_early_percent_memory(void)
> {
> - struct memblock_region *reg;
> - unsigned long total_pages = 0;
> -
> - /*
> - * We cannot use memblock_phys_mem_size() here, because
> - * memblock_analyze() has not been called yet.
> - */
> - for_each_memblock(memory, reg)
> - total_pages += memblock_region_memory_end_pfn(reg) -
> - memblock_region_memory_base_pfn(reg);
> + unsigned long total_pages = PHYS_PFN(memblock_phys_mem_size());
Reviewed-by: Baoquan He <bhe@redhat.com>
>
> return (total_pages * CONFIG_CMA_SIZE_PERCENTAGE / 100) << PAGE_SHIFT;
> }
> --
> 2.26.2
>
WARNING: multiple messages have this Message-ID (diff)
From: Baoquan He <bhe@redhat.com>
To: Mike Rapoport <rppt@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Andy Lutomirski <luto@kernel.org>,
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>,
Palmer Dabbelt <palmer@dabbelt.com>,
Paul Mackerras <paulus@samba.org>,
Paul Walmsley <paul.walmsley@sifive.com>,
Peter Zijlstra <peterz@infradead.org>,
Russell King <linux@armlinux.org.uk>,
Stafford Horne <shorne@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Will Deacon <will@kernel.org>,
Yoshinori Sato <ysato@users.sourceforge.jp>,
clang-built-linux@googlegroups.com,
iommu@lists.linux-foundation.org, linux-arch@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-c6x-dev@linux-c6x.org, linux-kernel@vger.kernel.org,
linux-mips@vger.kernel.org, linux-mm@kvack.org,
linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org,
linux-sh@vger.kernel.org, linux-xtensa@linux-xtensa.org,
linuxppc-dev@lists.ozlabs.org, openrisc@lists.librecores.org,
sparclinux@vger.kernel.org,
uclinux-h8-devel@lists.sourceforge.jp, x86@kernel.org
Subject: Re: [PATCH v2 02/17] dma-contiguous: simplify cma_early_percent_memory()
Date: Wed, 5 Aug 2020 11:50:24 +0800 [thread overview]
Message-ID: <20200805035024.GR10792@MiWiFi-R3L-srv> (raw)
In-Reply-To: <20200802163601.8189-3-rppt@kernel.org>
On 08/02/20 at 07:35pm, Mike Rapoport wrote:
> From: Mike Rapoport <rppt@linux.ibm.com>
>
> The memory size calculation in cma_early_percent_memory() traverses
> memblock.memory rather than simply call memblock_phys_mem_size(). The
> comment in that function suggests that at some point there should have been
> call to memblock_analyze() before memblock_phys_mem_size() could be used.
> As of now, there is no memblock_analyze() at all and
> memblock_phys_mem_size() can be used as soon as cold-plug memory is
> registerd with memblock.
>
> Replace loop over memblock.memory with a call to memblock_phys_mem_size().
>
> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> ---
> kernel/dma/contiguous.c | 11 +----------
> 1 file changed, 1 insertion(+), 10 deletions(-)
>
> diff --git a/kernel/dma/contiguous.c b/kernel/dma/contiguous.c
> index 15bc5026c485..1992afd8ca7b 100644
> --- a/kernel/dma/contiguous.c
> +++ b/kernel/dma/contiguous.c
> @@ -73,16 +73,7 @@ early_param("cma", early_cma);
>
> static phys_addr_t __init __maybe_unused cma_early_percent_memory(void)
> {
> - struct memblock_region *reg;
> - unsigned long total_pages = 0;
> -
> - /*
> - * We cannot use memblock_phys_mem_size() here, because
> - * memblock_analyze() has not been called yet.
> - */
> - for_each_memblock(memory, reg)
> - total_pages += memblock_region_memory_end_pfn(reg) -
> - memblock_region_memory_base_pfn(reg);
> + unsigned long total_pages = PHYS_PFN(memblock_phys_mem_size());
Reviewed-by: Baoquan He <bhe@redhat.com>
>
> return (total_pages * CONFIG_CMA_SIZE_PERCENTAGE / 100) << PAGE_SHIFT;
> }
> --
> 2.26.2
>
WARNING: multiple messages have this Message-ID (diff)
From: Baoquan He <bhe@redhat.com>
To: Mike Rapoport <rppt@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Andy Lutomirski <luto@kernel.org>,
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>,
Palmer Dabbelt <palmer@dabbelt.com>,
Paul Mackerras <paulus@samba.org>,
Paul Walmsley <paul.walmsley@sifive.com>,
Peter Zijlstra <peterz@infradead.org>,
Russell
Subject: Re: [PATCH v2 02/17] dma-contiguous: simplify cma_early_percent_memory()
Date: Wed, 5 Aug 2020 11:50:24 +0800 [thread overview]
Message-ID: <20200805035024.GR10792@MiWiFi-R3L-srv> (raw)
In-Reply-To: <20200802163601.8189-3-rppt@kernel.org>
On 08/02/20 at 07:35pm, Mike Rapoport wrote:
> From: Mike Rapoport <rppt@linux.ibm.com>
>
> The memory size calculation in cma_early_percent_memory() traverses
> memblock.memory rather than simply call memblock_phys_mem_size(). The
> comment in that function suggests that at some point there should have been
> call to memblock_analyze() before memblock_phys_mem_size() could be used.
> As of now, there is no memblock_analyze() at all and
> memblock_phys_mem_size() can be used as soon as cold-plug memory is
> registerd with memblock.
>
> Replace loop over memblock.memory with a call to memblock_phys_mem_size().
>
> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> ---
> kernel/dma/contiguous.c | 11 +----------
> 1 file changed, 1 insertion(+), 10 deletions(-)
>
> diff --git a/kernel/dma/contiguous.c b/kernel/dma/contiguous.c
> index 15bc5026c485..1992afd8ca7b 100644
> --- a/kernel/dma/contiguous.c
> +++ b/kernel/dma/contiguous.c
> @@ -73,16 +73,7 @@ early_param("cma", early_cma);
>
> static phys_addr_t __init __maybe_unused cma_early_percent_memory(void)
> {
> - struct memblock_region *reg;
> - unsigned long total_pages = 0;
> -
> - /*
> - * We cannot use memblock_phys_mem_size() here, because
> - * memblock_analyze() has not been called yet.
> - */
> - for_each_memblock(memory, reg)
> - total_pages += memblock_region_memory_end_pfn(reg) -
> - memblock_region_memory_base_pfn(reg);
> + unsigned long total_pages = PHYS_PFN(memblock_phys_mem_size());
Reviewed-by: Baoquan He <bhe@redhat.com>
>
> return (total_pages * CONFIG_CMA_SIZE_PERCENTAGE / 100) << PAGE_SHIFT;
> }
> --
> 2.26.2
>
WARNING: multiple messages have this Message-ID (diff)
From: Baoquan He <bhe@redhat.com>
To: Mike Rapoport <rppt@kernel.org>
Cc: Emil Renner Berthing <kernel@esmil.dk>,
linux-sh@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Dave Hansen <dave.hansen@linux.intel.com>,
linux-mips@vger.kernel.org, Max Filippov <jcmvbkbc@gmail.com>,
Paul Mackerras <paulus@samba.org>,
sparclinux@vger.kernel.org, linux-riscv@lists.infradead.org,
Will Deacon <will@kernel.org>, Stafford Horne <shorne@gmail.com>,
Marek Szyprowski <m.szyprowski@samsung.com>,
linux-arch@vger.kernel.org, linux-s390@vger.kernel.org,
linux-c6x-dev@linux-c6x.org,
Yoshinori Sato <ysato@users.sourceforge.jp>,
Michael Ellerman <mpe@ellerman.id.au>,
x86@kernel.org, Russell King <linux@armlinux.org.uk>,
Mike Rapoport <rppt@linux.ibm.com>,
clang-built-linux@googlegroups.com,
Ingo Molnar <mingo@redhat.com>,
linux-arm-kernel@lists.infradead.org,
Catalin Marinas <catalin.marinas@arm.com>,
uclinux-h8-devel@lists.sourceforge.jp,
linux-xtensa@linux-xtensa.org, openrisc@lists.librecores.org,
Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>,
Paul Walmsley <paul.walmsley@sifive.com>,
Thomas Gleixner <tglx@linutronix.de>,
Hari Bathini <hbathini@linux.ibm.com>,
Michal Simek <monstr@monstr.eu>,
linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org,
Palmer Dabbelt <palmer@dabbelt.com>,
Andrew Morton <akpm@linux-foundation.org>,
Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH v2 02/17] dma-contiguous: simplify cma_early_percent_memory()
Date: Wed, 5 Aug 2020 11:50:24 +0800 [thread overview]
Message-ID: <20200805035024.GR10792@MiWiFi-R3L-srv> (raw)
In-Reply-To: <20200802163601.8189-3-rppt@kernel.org>
On 08/02/20 at 07:35pm, Mike Rapoport wrote:
> From: Mike Rapoport <rppt@linux.ibm.com>
>
> The memory size calculation in cma_early_percent_memory() traverses
> memblock.memory rather than simply call memblock_phys_mem_size(). The
> comment in that function suggests that at some point there should have been
> call to memblock_analyze() before memblock_phys_mem_size() could be used.
> As of now, there is no memblock_analyze() at all and
> memblock_phys_mem_size() can be used as soon as cold-plug memory is
> registerd with memblock.
>
> Replace loop over memblock.memory with a call to memblock_phys_mem_size().
>
> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> ---
> kernel/dma/contiguous.c | 11 +----------
> 1 file changed, 1 insertion(+), 10 deletions(-)
>
> diff --git a/kernel/dma/contiguous.c b/kernel/dma/contiguous.c
> index 15bc5026c485..1992afd8ca7b 100644
> --- a/kernel/dma/contiguous.c
> +++ b/kernel/dma/contiguous.c
> @@ -73,16 +73,7 @@ early_param("cma", early_cma);
>
> static phys_addr_t __init __maybe_unused cma_early_percent_memory(void)
> {
> - struct memblock_region *reg;
> - unsigned long total_pages = 0;
> -
> - /*
> - * We cannot use memblock_phys_mem_size() here, because
> - * memblock_analyze() has not been called yet.
> - */
> - for_each_memblock(memory, reg)
> - total_pages += memblock_region_memory_end_pfn(reg) -
> - memblock_region_memory_base_pfn(reg);
> + unsigned long total_pages = PHYS_PFN(memblock_phys_mem_size());
Reviewed-by: Baoquan He <bhe@redhat.com>
>
> return (total_pages * CONFIG_CMA_SIZE_PERCENTAGE / 100) << PAGE_SHIFT;
> }
> --
> 2.26.2
>
_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
WARNING: multiple messages have this Message-ID (diff)
From: Baoquan He <bhe@redhat.com>
To: Mike Rapoport <rppt@kernel.org>
Cc: Emil Renner Berthing <kernel@esmil.dk>,
linux-sh@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>,
Dave Hansen <dave.hansen@linux.intel.com>,
linux-mips@vger.kernel.org, Max Filippov <jcmvbkbc@gmail.com>,
Paul Mackerras <paulus@samba.org>,
sparclinux@vger.kernel.org, linux-riscv@lists.infradead.org,
Will Deacon <will@kernel.org>, Stafford Horne <shorne@gmail.com>,
Marek Szyprowski <m.szyprowski@samsung.com>,
linux-arch@vger.kernel.org, linux-s390@vger.kernel.org,
linux-c6x-dev@linux-c6x.org,
Yoshinori Sato <ysato@users.sourceforge.jp>,
x86@kernel.org, Russell King <linux@armlinux.org.uk>,
Mike Rapoport <rppt@linux.ibm.com>,
clang-built-linux@googlegroups.com,
Ingo Molnar <mingo@redhat.com>,
linux-arm-kernel@lists.infradead.org,
Catalin Marinas <catalin.marinas@arm.com>,
uclinux-h8-devel@lists.sourceforge.jp,
linux-xtensa@linux-xtensa.org, openrisc@lists.librecores.org,
Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>,
Paul Walmsley <paul.walmsley@sifive.com>,
Thomas Gleixner <tglx@linutronix.de>,
Hari Bathini <hbathini@linux.ibm.com>,
Michal Simek <monstr@monstr.eu>,
linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org,
Palmer Dabbelt <palmer@dabbelt.com>,
Andrew Morton <akpm@linux-foundation.org>,
Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH v2 02/17] dma-contiguous: simplify cma_early_percent_memory()
Date: Wed, 5 Aug 2020 11:50:24 +0800 [thread overview]
Message-ID: <20200805035024.GR10792@MiWiFi-R3L-srv> (raw)
In-Reply-To: <20200802163601.8189-3-rppt@kernel.org>
On 08/02/20 at 07:35pm, Mike Rapoport wrote:
> From: Mike Rapoport <rppt@linux.ibm.com>
>
> The memory size calculation in cma_early_percent_memory() traverses
> memblock.memory rather than simply call memblock_phys_mem_size(). The
> comment in that function suggests that at some point there should have been
> call to memblock_analyze() before memblock_phys_mem_size() could be used.
> As of now, there is no memblock_analyze() at all and
> memblock_phys_mem_size() can be used as soon as cold-plug memory is
> registerd with memblock.
>
> Replace loop over memblock.memory with a call to memblock_phys_mem_size().
>
> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> ---
> kernel/dma/contiguous.c | 11 +----------
> 1 file changed, 1 insertion(+), 10 deletions(-)
>
> diff --git a/kernel/dma/contiguous.c b/kernel/dma/contiguous.c
> index 15bc5026c485..1992afd8ca7b 100644
> --- a/kernel/dma/contiguous.c
> +++ b/kernel/dma/contiguous.c
> @@ -73,16 +73,7 @@ early_param("cma", early_cma);
>
> static phys_addr_t __init __maybe_unused cma_early_percent_memory(void)
> {
> - struct memblock_region *reg;
> - unsigned long total_pages = 0;
> -
> - /*
> - * We cannot use memblock_phys_mem_size() here, because
> - * memblock_analyze() has not been called yet.
> - */
> - for_each_memblock(memory, reg)
> - total_pages += memblock_region_memory_end_pfn(reg) -
> - memblock_region_memory_base_pfn(reg);
> + unsigned long total_pages = PHYS_PFN(memblock_phys_mem_size());
Reviewed-by: Baoquan He <bhe@redhat.com>
>
> return (total_pages * CONFIG_CMA_SIZE_PERCENTAGE / 100) << PAGE_SHIFT;
> }
> --
> 2.26.2
>
WARNING: multiple messages have this Message-ID (diff)
From: Baoquan He <bhe@redhat.com>
To: Mike Rapoport <rppt@kernel.org>
Cc: Emil Renner Berthing <kernel@esmil.dk>,
linux-sh@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Dave Hansen <dave.hansen@linux.intel.com>,
linux-mips@vger.kernel.org, Max Filippov <jcmvbkbc@gmail.com>,
Paul Mackerras <paulus@samba.org>,
sparclinux@vger.kernel.org, linux-riscv@lists.infradead.org,
Will Deacon <will@kernel.org>, Stafford Horne <shorne@gmail.com>,
linux-arch@vger.kernel.org, linux-s390@vger.kernel.org,
linux-c6x-dev@linux-c6x.org,
Yoshinori Sato <ysato@users.sourceforge.jp>,
Michael Ellerman <mpe@ellerman.id.au>,
x86@kernel.org, Russell King <linux@armlinux.org.uk>,
Mike Rapoport <rppt@linux.ibm.com>,
clang-built-linux@googlegroups.com,
Ingo Molnar <mingo@redhat.com>,
linux-arm-kernel@lists.infradead.org,
Catalin Marinas <catalin.marinas@arm.com>,
uclinux-h8-devel@lists.sourceforge.jp,
linux-xtensa@linux-xtensa.org, openrisc@lists.librecores.org,
Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>,
Paul Walmsley <paul.walmsley@sifive.com>,
Thomas Gleixner <tglx@linutronix.de>,
Hari Bathini <hbathini@linux.ibm.com>,
Michal Simek <monstr@monstr.eu>,
linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org,
Palmer Dabbelt <palmer@dabbelt.com>,
Andrew Morton <akpm@linux-foundation.org>,
Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH v2 02/17] dma-contiguous: simplify cma_early_percent_memory()
Date: Wed, 5 Aug 2020 11:50:24 +0800 [thread overview]
Message-ID: <20200805035024.GR10792@MiWiFi-R3L-srv> (raw)
In-Reply-To: <20200802163601.8189-3-rppt@kernel.org>
On 08/02/20 at 07:35pm, Mike Rapoport wrote:
> From: Mike Rapoport <rppt@linux.ibm.com>
>
> The memory size calculation in cma_early_percent_memory() traverses
> memblock.memory rather than simply call memblock_phys_mem_size(). The
> comment in that function suggests that at some point there should have been
> call to memblock_analyze() before memblock_phys_mem_size() could be used.
> As of now, there is no memblock_analyze() at all and
> memblock_phys_mem_size() can be used as soon as cold-plug memory is
> registerd with memblock.
>
> Replace loop over memblock.memory with a call to memblock_phys_mem_size().
>
> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> ---
> kernel/dma/contiguous.c | 11 +----------
> 1 file changed, 1 insertion(+), 10 deletions(-)
>
> diff --git a/kernel/dma/contiguous.c b/kernel/dma/contiguous.c
> index 15bc5026c485..1992afd8ca7b 100644
> --- a/kernel/dma/contiguous.c
> +++ b/kernel/dma/contiguous.c
> @@ -73,16 +73,7 @@ early_param("cma", early_cma);
>
> static phys_addr_t __init __maybe_unused cma_early_percent_memory(void)
> {
> - struct memblock_region *reg;
> - unsigned long total_pages = 0;
> -
> - /*
> - * We cannot use memblock_phys_mem_size() here, because
> - * memblock_analyze() has not been called yet.
> - */
> - for_each_memblock(memory, reg)
> - total_pages += memblock_region_memory_end_pfn(reg) -
> - memblock_region_memory_base_pfn(reg);
> + unsigned long total_pages = PHYS_PFN(memblock_phys_mem_size());
Reviewed-by: Baoquan He <bhe@redhat.com>
>
> return (total_pages * CONFIG_CMA_SIZE_PERCENTAGE / 100) << PAGE_SHIFT;
> }
> --
> 2.26.2
>
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
WARNING: multiple messages have this Message-ID (diff)
From: Baoquan He <bhe@redhat.com>
To: Mike Rapoport <rppt@kernel.org>
Cc: Emil Renner Berthing <kernel@esmil.dk>,
linux-sh@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Dave Hansen <dave.hansen@linux.intel.com>,
linux-mips@vger.kernel.org, Max Filippov <jcmvbkbc@gmail.com>,
Paul Mackerras <paulus@samba.org>,
sparclinux@vger.kernel.org, linux-riscv@lists.infradead.org,
Will Deacon <will@kernel.org>, Stafford Horne <shorne@gmail.com>,
Marek Szyprowski <m.szyprowski@samsung.com>,
linux-arch@vger.kernel.org, linux-s390@vger.kernel.org,
linux-c6x-dev@linux-c6x.org,
Yoshinori Sato <ysato@users.sourceforge.jp>,
Michael Ellerman <mpe@ellerman.id.au>,
x86@kernel.org, Russell King <linux@armlinux.org.uk>,
Mike Rapoport <rppt@linux.ibm.com>,
clang-built-linux@googlegroups.com,
Ingo Molnar <mingo@redhat.com>,
linux-arm-kernel@lists.infradead.org,
Catalin Marinas <catalin.marinas@arm.com>,
uclinux-h8-devel@lists.sourceforge.jp,
linux-xtensa@linux-xtensa.org, openrisc@lists.librecores.org,
Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>,
Paul Walmsley <paul.walmsley@sifive.com>,
Thomas Gleixner <tglx@linutronix.de>,
Hari Bathini <hbathini@linux.ibm.com>,
Michal Simek <monstr@monstr.eu>,
linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org,
Palmer Dabbelt <palmer@dabbelt.com>,
Andrew Morton <akpm@linux-foundation.org>,
Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH v2 02/17] dma-contiguous: simplify cma_early_percent_memory()
Date: Wed, 5 Aug 2020 11:50:24 +0800 [thread overview]
Message-ID: <20200805035024.GR10792@MiWiFi-R3L-srv> (raw)
In-Reply-To: <20200802163601.8189-3-rppt@kernel.org>
On 08/02/20 at 07:35pm, Mike Rapoport wrote:
> From: Mike Rapoport <rppt@linux.ibm.com>
>
> The memory size calculation in cma_early_percent_memory() traverses
> memblock.memory rather than simply call memblock_phys_mem_size(). The
> comment in that function suggests that at some point there should have been
> call to memblock_analyze() before memblock_phys_mem_size() could be used.
> As of now, there is no memblock_analyze() at all and
> memblock_phys_mem_size() can be used as soon as cold-plug memory is
> registerd with memblock.
>
> Replace loop over memblock.memory with a call to memblock_phys_mem_size().
>
> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> ---
> kernel/dma/contiguous.c | 11 +----------
> 1 file changed, 1 insertion(+), 10 deletions(-)
>
> diff --git a/kernel/dma/contiguous.c b/kernel/dma/contiguous.c
> index 15bc5026c485..1992afd8ca7b 100644
> --- a/kernel/dma/contiguous.c
> +++ b/kernel/dma/contiguous.c
> @@ -73,16 +73,7 @@ early_param("cma", early_cma);
>
> static phys_addr_t __init __maybe_unused cma_early_percent_memory(void)
> {
> - struct memblock_region *reg;
> - unsigned long total_pages = 0;
> -
> - /*
> - * We cannot use memblock_phys_mem_size() here, because
> - * memblock_analyze() has not been called yet.
> - */
> - for_each_memblock(memory, reg)
> - total_pages += memblock_region_memory_end_pfn(reg) -
> - memblock_region_memory_base_pfn(reg);
> + unsigned long total_pages = PHYS_PFN(memblock_phys_mem_size());
Reviewed-by: Baoquan He <bhe@redhat.com>
>
> return (total_pages * CONFIG_CMA_SIZE_PERCENTAGE / 100) << PAGE_SHIFT;
> }
> --
> 2.26.2
>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: Baoquan He <bhe@redhat.com>
To: openrisc@lists.librecores.org
Subject: [OpenRISC] [PATCH v2 02/17] dma-contiguous: simplify cma_early_percent_memory()
Date: Wed, 5 Aug 2020 11:50:24 +0800 [thread overview]
Message-ID: <20200805035024.GR10792@MiWiFi-R3L-srv> (raw)
In-Reply-To: <20200802163601.8189-3-rppt@kernel.org>
On 08/02/20 at 07:35pm, Mike Rapoport wrote:
> From: Mike Rapoport <rppt@linux.ibm.com>
>
> The memory size calculation in cma_early_percent_memory() traverses
> memblock.memory rather than simply call memblock_phys_mem_size(). The
> comment in that function suggests that at some point there should have been
> call to memblock_analyze() before memblock_phys_mem_size() could be used.
> As of now, there is no memblock_analyze() at all and
> memblock_phys_mem_size() can be used as soon as cold-plug memory is
> registerd with memblock.
>
> Replace loop over memblock.memory with a call to memblock_phys_mem_size().
>
> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> ---
> kernel/dma/contiguous.c | 11 +----------
> 1 file changed, 1 insertion(+), 10 deletions(-)
>
> diff --git a/kernel/dma/contiguous.c b/kernel/dma/contiguous.c
> index 15bc5026c485..1992afd8ca7b 100644
> --- a/kernel/dma/contiguous.c
> +++ b/kernel/dma/contiguous.c
> @@ -73,16 +73,7 @@ early_param("cma", early_cma);
>
> static phys_addr_t __init __maybe_unused cma_early_percent_memory(void)
> {
> - struct memblock_region *reg;
> - unsigned long total_pages = 0;
> -
> - /*
> - * We cannot use memblock_phys_mem_size() here, because
> - * memblock_analyze() has not been called yet.
> - */
> - for_each_memblock(memory, reg)
> - total_pages += memblock_region_memory_end_pfn(reg) -
> - memblock_region_memory_base_pfn(reg);
> + unsigned long total_pages = PHYS_PFN(memblock_phys_mem_size());
Reviewed-by: Baoquan He <bhe@redhat.com>
>
> return (total_pages * CONFIG_CMA_SIZE_PERCENTAGE / 100) << PAGE_SHIFT;
> }
> --
> 2.26.2
>
next prev parent reply other threads:[~2020-08-05 3:50 UTC|newest]
Thread overview: 276+ 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 ` [OpenRISC] " Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 01/17] KVM: PPC: Book3S HV: simplify kvm_cma_reserve() Mike Rapoport
2020-08-02 16:35 ` [OpenRISC] " Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-04 13:53 ` Daniel Axtens
2020-08-04 13:53 ` [OpenRISC] " Daniel Axtens
2020-08-04 13:53 ` Daniel Axtens
2020-08-04 13:53 ` Daniel Axtens
2020-08-04 13:53 ` Daniel Axtens
2020-08-04 13:53 ` Daniel Axtens
2020-08-04 13:53 ` Daniel Axtens
2020-08-04 13:53 ` Daniel Axtens
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
2020-08-02 16:35 ` [OpenRISC] " Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-05 3:50 ` Baoquan He [this message]
2020-08-05 3:50 ` [OpenRISC] " Baoquan He
2020-08-05 3:50 ` Baoquan He
2020-08-05 3:50 ` Baoquan He
2020-08-05 3:50 ` Baoquan He
2020-08-05 3:50 ` Baoquan He
2020-08-05 3:50 ` Baoquan He
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 ` [OpenRISC] " Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 04/17] arm64: numa: simplify dummy_numa_init() Mike Rapoport
2020-08-02 16:35 ` [OpenRISC] " Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` 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 ` [OpenRISC] " Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 06/17] riscv: drop unneeded node initialization Mike Rapoport
2020-08-02 16:35 ` [OpenRISC] " Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 07/17] mircoblaze: drop unneeded NUMA and sparsemem initializations Mike Rapoport
2020-08-02 16:35 ` [OpenRISC] " Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` [PATCH v2 08/17] memblock: make for_each_memblock_type() iterator private Mike Rapoport
2020-08-02 16:35 ` [OpenRISC] " Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` 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 ` [OpenRISC] " Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` 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 ` [OpenRISC] " Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` 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
2020-08-02 16:35 ` [OpenRISC] " Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-05 3:57 ` Baoquan He
2020-08-05 3:57 ` [OpenRISC] " Baoquan He
2020-08-05 3:57 ` Baoquan He
2020-08-05 3:57 ` Baoquan He
2020-08-05 3:57 ` Baoquan He
2020-08-05 3:57 ` Baoquan He
2020-08-05 3:57 ` Baoquan He
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
2020-08-02 16:35 ` [OpenRISC] " Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-03 17:19 ` kernel test robot
2020-08-05 11:00 ` Thomas Bogendoerfer
2020-08-05 11:00 ` [OpenRISC] " Thomas Bogendoerfer
2020-08-05 11:00 ` Thomas Bogendoerfer
2020-08-05 11:00 ` Thomas Bogendoerfer
2020-08-05 11:00 ` Thomas Bogendoerfer
2020-08-05 11:00 ` Thomas Bogendoerfer
2020-08-05 11:00 ` Thomas Bogendoerfer
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 16:35 ` [OpenRISC] " Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 18:01 ` Ingo Molnar
2020-08-02 18:01 ` [OpenRISC] " Ingo Molnar
2020-08-02 18:01 ` Ingo Molnar
2020-08-02 18:01 ` Ingo Molnar
2020-08-02 18:01 ` Ingo Molnar
2020-08-02 18:01 ` Ingo Molnar
2020-08-02 18:01 ` Ingo Molnar
2020-08-02 18:01 ` Ingo Molnar
2020-08-05 4:20 ` Baoquan He
2020-08-05 4:20 ` [OpenRISC] " Baoquan He
2020-08-05 4:20 ` Baoquan He
2020-08-05 4:20 ` Baoquan He
2020-08-05 4:20 ` Baoquan He
2020-08-05 4:20 ` Baoquan He
2020-08-05 4:20 ` Baoquan He
2020-08-05 4:20 ` Baoquan He
2020-08-05 5:59 ` Mike Rapoport
2020-08-05 5:59 ` [OpenRISC] " Mike Rapoport
2020-08-05 5:59 ` Mike Rapoport
2020-08-05 5:59 ` Mike Rapoport
2020-08-05 5:59 ` Mike Rapoport
2020-08-05 5:59 ` Mike Rapoport
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 16:35 ` [OpenRISC] " Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 18:02 ` Ingo Molnar
2020-08-02 18:02 ` [OpenRISC] " Ingo Molnar
2020-08-02 18:02 ` Ingo Molnar
2020-08-02 18:02 ` Ingo Molnar
2020-08-02 18:02 ` Ingo Molnar
2020-08-02 18:02 ` Ingo Molnar
2020-08-02 18:02 ` Ingo Molnar
2020-08-02 18:02 ` Ingo Molnar
2020-08-05 6:00 ` Baoquan He
2020-08-05 6:00 ` [OpenRISC] " Baoquan He
2020-08-05 6:00 ` Baoquan He
2020-08-05 6:00 ` Baoquan He
2020-08-05 6:00 ` Baoquan He
2020-08-05 6:00 ` Baoquan He
2020-08-05 6:00 ` Baoquan He
2020-08-05 6:00 ` Baoquan He
2020-08-02 16:35 ` [PATCH v2 15/17] memblock: remove unused memblock_mem_size() Mike Rapoport
2020-08-02 16:35 ` [OpenRISC] " Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-02 16:35 ` Mike Rapoport
2020-08-05 8:29 ` Baoquan He
2020-08-05 8:29 ` [OpenRISC] " Baoquan He
2020-08-05 8:29 ` Baoquan He
2020-08-05 8:29 ` Baoquan He
2020-08-05 8:29 ` Baoquan He
2020-08-05 8:29 ` Baoquan He
2020-08-05 8:29 ` Baoquan He
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
2020-08-02 16:36 ` [OpenRISC] " Mike Rapoport
2020-08-02 16:36 ` Mike Rapoport
2020-08-02 16:36 ` Mike Rapoport
2020-08-02 16:36 ` Mike Rapoport
2020-08-02 16:36 ` Mike Rapoport
2020-08-02 16:36 ` Mike Rapoport
2020-08-02 16:36 ` Mike Rapoport
2020-08-05 9:11 ` Baoquan He
2020-08-05 9:11 ` [OpenRISC] " Baoquan He
2020-08-05 9:11 ` Baoquan He
2020-08-05 9:11 ` Baoquan He
2020-08-05 9:11 ` Baoquan He
2020-08-05 9:11 ` Baoquan He
2020-08-05 9:11 ` Baoquan He
2020-08-05 9:11 ` Baoquan He
2020-08-05 17:11 ` Miguel Ojeda
2020-08-05 17:11 ` [OpenRISC] " Miguel Ojeda
2020-08-05 17:11 ` Miguel Ojeda
2020-08-05 17:11 ` Miguel Ojeda
2020-08-05 17:11 ` Miguel Ojeda
2020-08-05 17:11 ` Miguel Ojeda
2020-08-05 17:11 ` Miguel Ojeda
2020-08-05 17:11 ` Miguel Ojeda
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 16:36 ` [OpenRISC] " Mike Rapoport
2020-08-02 16:36 ` Mike Rapoport
2020-08-02 16:36 ` Mike Rapoport
2020-08-02 16:36 ` Mike Rapoport
2020-08-02 16:36 ` Mike Rapoport
2020-08-02 16:36 ` Mike Rapoport
2020-08-02 16:36 ` Mike Rapoport
2020-08-02 18:03 ` Ingo Molnar
2020-08-02 18:03 ` [OpenRISC] " Ingo Molnar
2020-08-02 18:03 ` Ingo Molnar
2020-08-02 18:03 ` Ingo Molnar
2020-08-02 18:03 ` Ingo Molnar
2020-08-02 18:03 ` Ingo Molnar
2020-08-02 18:03 ` Ingo Molnar
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 9:29 ` [OpenRISC] " Baoquan He
2020-08-05 9:29 ` Baoquan He
2020-08-05 9:29 ` Baoquan He
2020-08-05 9:29 ` Baoquan He
2020-08-05 9:29 ` Baoquan He
2020-08-05 9:29 ` Baoquan He
2020-08-05 9:29 ` Baoquan He
2020-08-05 10:58 ` Thomas Bogendoerfer
2020-08-05 10:58 ` [OpenRISC] " Thomas Bogendoerfer
2020-08-05 10:58 ` Thomas Bogendoerfer
2020-08-05 10:58 ` Thomas Bogendoerfer
2020-08-05 10:58 ` Thomas Bogendoerfer
2020-08-05 10:58 ` Thomas Bogendoerfer
2020-08-05 10:58 ` Thomas Bogendoerfer
2020-08-05 10:58 ` Thomas Bogendoerfer
2020-08-05 17:10 ` Miguel Ojeda
2020-08-05 17:10 ` [OpenRISC] " Miguel Ojeda
2020-08-05 17:10 ` Miguel Ojeda
2020-08-05 17:10 ` Miguel Ojeda
2020-08-05 17:10 ` Miguel Ojeda
2020-08-05 17:10 ` Miguel Ojeda
2020-08-05 17:10 ` Miguel Ojeda
2020-08-05 17:10 ` Miguel Ojeda
2020-08-05 17:10 ` Miguel Ojeda
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