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From: Ralf Baechle <ralf@linux-mips.org>
To: Huacai Chen <chenhuacai@gmail.com>
Cc: linux-mips@linux-mips.org, linux-kernel@vger.kernel.org,
	Fuxin Zhang <zhangfx@lemote.com>,
	Zhangjin Wu <wuzhangjin@gmail.com>,
	Huacai Chen <chenhc@lemote.com>, Hongliang Tao <taohl@lemote.com>,
	Hua Yan <yanh@lemote.com>,
	dri-devel@lists.freedesktop.org
Subject: Re: [PATCH V5 13/18] drm: Define SAREA_MAX for Loongson (PageSize = 16KB).
Date: Wed, 15 Aug 2012 23:31:26 +0200	[thread overview]
Message-ID: <20120815213126.GC15844@linux-mips.org> (raw)
In-Reply-To: <1344677543-22591-14-git-send-email-chenhc@lemote.com>

On Sat, Aug 11, 2012 at 05:32:18PM +0800, Huacai Chen wrote:

> Subject: [PATCH V5 13/18] drm: Define SAREA_MAX for Loongson (PageSize = 16KB).

But your code doesn't define it just for Loongsson as the log message claims
but rather for all MIPS.

> diff --git a/include/drm/drm_sarea.h b/include/drm/drm_sarea.h
> index ee5389d..1d1a858 100644
> --- a/include/drm/drm_sarea.h
> +++ b/include/drm/drm_sarea.h
> @@ -37,6 +37,8 @@
>  /* SAREA area needs to be at least a page */
>  #if defined(__alpha__)
>  #define SAREA_MAX                       0x2000U
> +#elif defined(__mips__)
> +#define SAREA_MAX                       0x4000U

How about replacing this whole #ifdef mess with something like:

#include <linux/kernel.h>
#include <asm/page.h>

/* Intel 830M driver needs at least 8k SAREA */
#define SAREA_MAX	max(PAGE_SIZE, 0x2000U)

MIPS also uses 64K page size and your patch as posted would break with 64k
pages.

  Ralf

  reply	other threads:[~2012-08-15 21:31 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-11  9:32 [PATCH V5 00/16] MIPS: Add Loongson-3 based machines support Huacai Chen
2012-08-11  9:32 ` [PATCH V5 01/18] MIPS: Loongson: Add basic Loongson-3 definition Huacai Chen
2012-08-11  9:32 ` [PATCH V5 02/18] MIPS: Loongson: Add basic Loongson-3 CPU support Huacai Chen
2012-08-11  9:32 ` [PATCH V5 03/18] MIPS: Loongson 3: Add Lemote-3A machtypes definition Huacai Chen
2012-08-11  9:32 ` [PATCH V5 04/18] MIPS: Loongson: Make Loongson-3 to use BCD format for RTC Huacai Chen
2012-08-11  9:32 ` [PATCH V5 05/18] MIPS: Loongson: Add UEFI-like firmware interface support Huacai Chen
2012-08-11  9:32 ` [PATCH V5 06/18] MIPS: Loongson 3: Add HT-linked PCI support Huacai Chen
2012-08-11  9:32 ` [PATCH V5 07/18] MIPS: Loongson 3: Add IRQ init and dispatch support Huacai Chen
2012-08-11  9:32 ` [PATCH V5 08/18] MIPS: Loongson 3: Add serial port support Huacai Chen
2012-08-11  9:32 ` [PATCH V5 09/18] MIPS: Loongson: Add swiotlb to support big memory (>4GB) Huacai Chen
2012-08-13 17:54   ` Konrad Rzeszutek Wilk
2012-08-14  2:29     ` Huacai Chen
2012-08-14  5:57     ` Huacai Chen
2012-08-14 16:26       ` David Daney
2012-08-15  2:18     ` Huacai Chen
2012-08-15 20:24     ` Ralf Baechle
2012-08-16  3:19       ` Huacai Chen
2012-08-11  9:32 ` [PATCH V5 10/18] MIPS: Loongson: Add Loongson-3 Kconfig options Huacai Chen
2012-08-11  9:32 ` [PATCH V5 11/18] drm/radeon: Include swiotlb.h if SWIOTLB configured Huacai Chen
2012-08-11  9:32 ` [PATCH V5 12/18] drm: Handle io prot correctly for MIPS Huacai Chen
2012-08-11  9:32 ` [PATCH V5 13/18] drm: Define SAREA_MAX for Loongson (PageSize = 16KB) Huacai Chen
2012-08-15 21:31   ` Ralf Baechle [this message]
2012-08-16  0:43     ` Huacai Chen
2012-08-16  1:58   ` Matt Turner
2012-08-16  3:20     ` Huacai Chen
2012-08-11  9:32 ` [PATCH V5 14/18] ALSA: HDA: Make hda sound card usable for Loongson Huacai Chen
2012-08-13  8:00   ` [alsa-devel] " Takashi Iwai
2012-08-13  8:22     ` Huacai Chen
2012-08-11  9:32 ` [PATCH V5 15/18] MIPS: Loongson 3: Add Loongson-3 SMP support Huacai Chen
2012-08-11  9:32 ` [PATCH V5 16/18] MIPS: Loongson 3: Add CPU hotplug support Huacai Chen
2012-08-11  9:32 ` [PATCH V5 17/18] MIPS: Fix poweroff failure when HOTPLUG_CPU configured Huacai Chen
2012-08-11  9:32 ` [PATCH V5 18/18] MIPS: Loongson: Add a Loongson-3 default config file Huacai Chen

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