From: Catalin Marinas <catalin.marinas@arm.com>
To: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Cc: devicetree@vger.kernel.org, will@kernel.org,
Frank Rowand <frowand.list@gmail.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
iommu@lists.linux-foundation.org, robh+dt@kernel.org,
linux-rpi-kernel@lists.infradead.org, robin.murphy@arm.com,
hch@lst.de, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 1/4] of/fdt: Update zone_dma_bits when running in bcm2711
Date: Thu, 1 Oct 2020 18:15:01 +0100 [thread overview]
Message-ID: <20201001171500.GN21544@gaia> (raw)
In-Reply-To: <20201001161740.29064-2-nsaenzjulienne@suse.de>
Hi Nicolas,
Thanks for putting this together.
On Thu, Oct 01, 2020 at 06:17:37PM +0200, Nicolas Saenz Julienne wrote:
> diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
> index 4602e467ca8b..cd0d115ef329 100644
> --- a/drivers/of/fdt.c
> +++ b/drivers/of/fdt.c
> @@ -25,6 +25,7 @@
> #include <linux/serial_core.h>
> #include <linux/sysfs.h>
> #include <linux/random.h>
> +#include <linux/dma-direct.h> /* for zone_dma_bits */
>
> #include <asm/setup.h> /* for COMMAND_LINE_SIZE */
> #include <asm/page.h>
> @@ -1198,6 +1199,14 @@ void __init early_init_dt_scan_nodes(void)
> of_scan_flat_dt(early_init_dt_scan_memory, NULL);
> }
>
> +void __init early_init_dt_update_zone_dma_bits(void)
> +{
> + unsigned long dt_root = of_get_flat_dt_root();
> +
> + if (of_flat_dt_is_compatible(dt_root, "brcm,bcm2711"))
> + zone_dma_bits = 30;
> +}
I think we could keep this entirely in the arm64 setup_machine_fdt() and
not pollute the core code with RPi4-specific code.
--
Catalin
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
WARNING: multiple messages have this Message-ID (diff)
From: Catalin Marinas <catalin.marinas@arm.com>
To: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Cc: devicetree@vger.kernel.org, will@kernel.org,
Frank Rowand <frowand.list@gmail.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
iommu@lists.linux-foundation.org, robh+dt@kernel.org,
linux-rpi-kernel@lists.infradead.org, robin.murphy@arm.com,
hch@lst.de, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 1/4] of/fdt: Update zone_dma_bits when running in bcm2711
Date: Thu, 1 Oct 2020 18:15:01 +0100 [thread overview]
Message-ID: <20201001171500.GN21544@gaia> (raw)
In-Reply-To: <20201001161740.29064-2-nsaenzjulienne@suse.de>
Hi Nicolas,
Thanks for putting this together.
On Thu, Oct 01, 2020 at 06:17:37PM +0200, Nicolas Saenz Julienne wrote:
> diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
> index 4602e467ca8b..cd0d115ef329 100644
> --- a/drivers/of/fdt.c
> +++ b/drivers/of/fdt.c
> @@ -25,6 +25,7 @@
> #include <linux/serial_core.h>
> #include <linux/sysfs.h>
> #include <linux/random.h>
> +#include <linux/dma-direct.h> /* for zone_dma_bits */
>
> #include <asm/setup.h> /* for COMMAND_LINE_SIZE */
> #include <asm/page.h>
> @@ -1198,6 +1199,14 @@ void __init early_init_dt_scan_nodes(void)
> of_scan_flat_dt(early_init_dt_scan_memory, NULL);
> }
>
> +void __init early_init_dt_update_zone_dma_bits(void)
> +{
> + unsigned long dt_root = of_get_flat_dt_root();
> +
> + if (of_flat_dt_is_compatible(dt_root, "brcm,bcm2711"))
> + zone_dma_bits = 30;
> +}
I think we could keep this entirely in the arm64 setup_machine_fdt() and
not pollute the core code with RPi4-specific code.
--
Catalin
_______________________________________________
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: Catalin Marinas <catalin.marinas@arm.com>
To: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Cc: robh+dt@kernel.org, hch@lst.de, robin.murphy@arm.com,
devicetree@vger.kernel.org, iommu@lists.linux-foundation.org,
linux-mm@kvack.org, Frank Rowand <frowand.list@gmail.com>,
will@kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-rpi-kernel@lists.infradead.org
Subject: Re: [PATCH 1/4] of/fdt: Update zone_dma_bits when running in bcm2711
Date: Thu, 1 Oct 2020 18:15:01 +0100 [thread overview]
Message-ID: <20201001171500.GN21544@gaia> (raw)
In-Reply-To: <20201001161740.29064-2-nsaenzjulienne@suse.de>
Hi Nicolas,
Thanks for putting this together.
On Thu, Oct 01, 2020 at 06:17:37PM +0200, Nicolas Saenz Julienne wrote:
> diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
> index 4602e467ca8b..cd0d115ef329 100644
> --- a/drivers/of/fdt.c
> +++ b/drivers/of/fdt.c
> @@ -25,6 +25,7 @@
> #include <linux/serial_core.h>
> #include <linux/sysfs.h>
> #include <linux/random.h>
> +#include <linux/dma-direct.h> /* for zone_dma_bits */
>
> #include <asm/setup.h> /* for COMMAND_LINE_SIZE */
> #include <asm/page.h>
> @@ -1198,6 +1199,14 @@ void __init early_init_dt_scan_nodes(void)
> of_scan_flat_dt(early_init_dt_scan_memory, NULL);
> }
>
> +void __init early_init_dt_update_zone_dma_bits(void)
> +{
> + unsigned long dt_root = of_get_flat_dt_root();
> +
> + if (of_flat_dt_is_compatible(dt_root, "brcm,bcm2711"))
> + zone_dma_bits = 30;
> +}
I think we could keep this entirely in the arm64 setup_machine_fdt() and
not pollute the core code with RPi4-specific code.
--
Catalin
next prev parent reply other threads:[~2020-10-01 17:15 UTC|newest]
Thread overview: 93+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-01 16:17 [PATCH 0/4] arm64: Default to 32-bit wide ZONE_DMA Nicolas Saenz Julienne
2020-10-01 16:17 ` Nicolas Saenz Julienne
2020-10-01 16:17 ` Nicolas Saenz Julienne
2020-10-01 16:17 ` [PATCH 1/4] of/fdt: Update zone_dma_bits when running in bcm2711 Nicolas Saenz Julienne
2020-10-01 16:17 ` Nicolas Saenz Julienne
2020-10-01 16:17 ` Nicolas Saenz Julienne
2020-10-01 17:15 ` Catalin Marinas [this message]
2020-10-01 17:15 ` Catalin Marinas
2020-10-01 17:15 ` Catalin Marinas
2020-10-01 17:23 ` Catalin Marinas
2020-10-01 17:23 ` Catalin Marinas
2020-10-01 17:23 ` Catalin Marinas
2020-10-01 17:31 ` Nicolas Saenz Julienne
2020-10-01 17:31 ` Nicolas Saenz Julienne
2020-10-01 17:31 ` Nicolas Saenz Julienne
2020-10-01 20:02 ` Rob Herring
2020-10-01 20:02 ` Rob Herring
2020-10-01 20:02 ` Rob Herring
2020-10-02 11:55 ` Catalin Marinas
2020-10-02 11:55 ` Catalin Marinas
2020-10-02 11:55 ` Catalin Marinas
2020-10-08 10:05 ` Nicolas Saenz Julienne
2020-10-08 10:05 ` Nicolas Saenz Julienne
2020-10-08 10:05 ` Nicolas Saenz Julienne
2020-10-08 10:13 ` Catalin Marinas
2020-10-08 10:13 ` Catalin Marinas
2020-10-08 10:13 ` Catalin Marinas
2020-10-08 19:43 ` Ard Biesheuvel
2020-10-08 19:43 ` Ard Biesheuvel
2020-10-08 19:43 ` Ard Biesheuvel
2020-10-09 3:59 ` Jeremy Linton
2020-10-09 3:59 ` Jeremy Linton
2020-10-09 3:59 ` Jeremy Linton
2020-10-09 8:37 ` Nicolas Saenz Julienne
2020-10-09 8:37 ` Nicolas Saenz Julienne
2020-10-09 8:37 ` Nicolas Saenz Julienne
2020-10-09 7:10 ` Christoph Hellwig
2020-10-09 7:10 ` Christoph Hellwig
2020-10-09 7:10 ` Christoph Hellwig
2020-10-09 7:37 ` Ard Biesheuvel
2020-10-09 7:37 ` Ard Biesheuvel
2020-10-09 7:37 ` Ard Biesheuvel
2020-10-09 8:36 ` Nicolas Saenz Julienne
2020-10-09 8:36 ` Nicolas Saenz Julienne
2020-10-09 8:36 ` Nicolas Saenz Julienne
2020-10-09 9:13 ` Ard Biesheuvel
2020-10-09 9:13 ` Ard Biesheuvel
2020-10-09 9:13 ` Ard Biesheuvel
2020-10-09 13:33 ` Nicolas Saenz Julienne
2020-10-09 13:33 ` Nicolas Saenz Julienne
2020-10-09 13:33 ` Nicolas Saenz Julienne
2020-10-09 15:24 ` Lorenzo Pieralisi
2020-10-09 15:24 ` Lorenzo Pieralisi
2020-10-09 15:24 ` Lorenzo Pieralisi
2020-10-09 16:23 ` Ard Biesheuvel
2020-10-09 16:23 ` Ard Biesheuvel
2020-10-09 16:23 ` Ard Biesheuvel
2020-10-09 17:10 ` Catalin Marinas
2020-10-09 17:10 ` Catalin Marinas
2020-10-09 17:10 ` Catalin Marinas
2020-10-10 10:36 ` Ard Biesheuvel
2020-10-10 10:36 ` Ard Biesheuvel
2020-10-10 10:36 ` Ard Biesheuvel
2020-10-10 10:53 ` Nicolas Saenz Julienne
2020-10-10 10:53 ` Nicolas Saenz Julienne
2020-10-10 10:53 ` Nicolas Saenz Julienne
2020-10-10 12:38 ` Catalin Marinas
2020-10-10 12:38 ` Catalin Marinas
2020-10-10 12:38 ` Catalin Marinas
2020-10-12 6:47 ` Christoph Hellwig
2020-10-12 6:47 ` Christoph Hellwig
2020-10-12 6:47 ` Christoph Hellwig
2020-10-12 8:47 ` Catalin Marinas
2020-10-12 8:47 ` Catalin Marinas
2020-10-12 8:47 ` Catalin Marinas
2020-10-02 9:05 ` kernel test robot
2020-10-02 9:05 ` kernel test robot
2020-10-02 9:05 ` kernel test robot
2020-10-01 16:17 ` [PATCH 2/4] dma-direct: Turn zone_dma_bits default value into a define Nicolas Saenz Julienne
2020-10-01 16:17 ` Nicolas Saenz Julienne
2020-10-01 16:17 ` Nicolas Saenz Julienne
2020-10-01 16:17 ` [PATCH 3/4] arm64: Default to 32-bit ZONE_DMA Nicolas Saenz Julienne
2020-10-01 16:17 ` Nicolas Saenz Julienne
2020-10-01 16:17 ` Nicolas Saenz Julienne
2020-10-01 17:19 ` Catalin Marinas
2020-10-01 17:19 ` Catalin Marinas
2020-10-01 17:19 ` Catalin Marinas
2020-10-01 16:17 ` [PATCH 4/4] mm: Update DMA zones description Nicolas Saenz Julienne
2020-10-01 16:17 ` Nicolas Saenz Julienne
2020-10-01 16:17 ` Nicolas Saenz Julienne
2020-10-01 17:19 ` Catalin Marinas
2020-10-01 17:19 ` Catalin Marinas
2020-10-01 17:19 ` Catalin Marinas
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