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Message-ID: <1517276662.2652.12.camel@hxt-semitech.com>
Date: Tue, 30 Jan 2018 01:44:32 +0000
From: "Yang, Shunyong" <shunyong.yang@...-semitech.com>
To: "rjw@...ysocki.net" <rjw@...ysocki.net>
CC: "lenb@...nel.org" <lenb@...nel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"Zheng, Joey" <yu.zheng@...-semitech.com>,
"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
"Jiang, Yutang2" <yutang2.jiang@...-semitech.com>
Subject: Re: [PATCH v2] ACPI / tables: Add IORT to injectable table list
Hi, Rafael
Could you please help to review this patch? This is a small change to
add ACPI_SIG_IORT to table_sigs[].
Loading IORT table from initrd is very useful to debug SMMU node/device
probe, MSI allocation, stream id translation and verifying IORT table
from firmware. So, I add this.
Thanks
Shunyong.
On Tue, 2018-01-23 at 16:25 +0800, Yang Shunyong wrote:
> This patch adds ACPI_SIG_IORT to the table, which enables IORT from
> initrd to override which from firmware.
>
> Signed-off-by: Yang Shunyong <shunyong.yang@...-semitech.com>
> Cc: yutang2.jiang@...-semitech.com
> Cc: yu.zheng@...-semitech.com
> ---
>
> v2: change typo ACPI_SIG_PPTT to ACPI_SIG_IORT in commit message.
>
> ---
> drivers/acpi/tables.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
> index 80ce2a7d224b..7bcb66ccccf3 100644
> --- a/drivers/acpi/tables.c
> +++ b/drivers/acpi/tables.c
> @@ -456,7 +456,8 @@ static u8 __init acpi_table_checksum(u8 *buffer,
> u32 length)
> ACPI_SIG_SLIC, ACPI_SIG_SPCR, ACPI_SIG_SPMI, ACPI_SIG_TCPA,
> ACPI_SIG_UEFI, ACPI_SIG_WAET, ACPI_SIG_WDAT, ACPI_SIG_WDDT,
> ACPI_SIG_WDRT, ACPI_SIG_DSDT, ACPI_SIG_FADT, ACPI_SIG_PSDT,
> - ACPI_SIG_RSDT, ACPI_SIG_XSDT, ACPI_SIG_SSDT, NULL };
> + ACPI_SIG_RSDT, ACPI_SIG_XSDT, ACPI_SIG_SSDT, ACPI_SIG_IORT,
> + NULL };
>
> #define ACPI_HEADER_SIZE sizeof(struct acpi_table_header)
>
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