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From: Yazen Ghannam <yazen.ghannam@amd.com>
To: Naveen Krishna Chatradhi <nchatrad@amd.com>
Cc: linux-edac@vger.kernel.org, x86@kernel.org,
	linux-kernel@vger.kernel.org, bp@alien8.de, mingo@redhat.com,
	mchehab@kernel.org, Muralidhara M K <muralimk@amd.com>
Subject: Re: [PATCH v4 2/4] EDAC/mce_amd: Extract node id from MCA_IPID
Date: Thu, 21 Oct 2021 15:55:51 +0000	[thread overview]
Message-ID: <YXGNh4gfWbZSJHkK@yaz-ubuntu> (raw)
In-Reply-To: <20211014185400.10451-3-nchatrad@amd.com>

On Fri, Oct 15, 2021 at 12:23:58AM +0530, Naveen Krishna Chatradhi wrote:
> On SMCA banks of the GPU nodes, the node id information is
> available in register MCA_IPID[47:44](InstanceIdHi).
> 
> Convert the hardware node ID to a value used by Linux
> where GPU nodes are sequencially after the CPU nodes.
> 
> Co-developed-by: Muralidhara M K <muralimk@amd.com>
> Signed-off-by: Muralidhara M K <muralimk@amd.com>
> Signed-off-by: Naveen Krishna Chatradhi <nchatrad@amd.com>
> Link: https://lkml.kernel.org/r/20210823185437.94417-3-nchatrad@amd.com
> ---
> Changes since v3:
> 1. Use APIs from amd_nb to identify the gpu_node_start_id and cpu_node_count.
>    Which is required to map the hardware node id to node id enumerated by Linux.
> 
> Changes since v2:
> 1. Modified subject and commit message
> 2. Added Reviewed by Yazen Ghannam
> 
> Changes since v1:
> 1. Modified the commit message
> 2. rearranged the conditions before calling decode_dram_ecc()
> 
>  drivers/edac/mce_amd.c | 24 ++++++++++++++++++++++--
>  1 file changed, 22 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/edac/mce_amd.c b/drivers/edac/mce_amd.c
> index 67dbf4c31271..af6caa76adc7 100644
> --- a/drivers/edac/mce_amd.c
> +++ b/drivers/edac/mce_amd.c
> @@ -2,6 +2,7 @@
>  #include <linux/module.h>
>  #include <linux/slab.h>
>  
> +#include <asm/amd_nb.h>
>  #include <asm/cpu.h>
>  
>  #include "mce_amd.h"
> @@ -1072,8 +1073,27 @@ static void decode_smca_error(struct mce *m)
>  	if (xec < smca_mce_descs[bank_type].num_descs)
>  		pr_cont(", %s.\n", smca_mce_descs[bank_type].descs[xec]);
>  
> -	if (bank_type == SMCA_UMC && xec == 0 && decode_dram_ecc)
> -		decode_dram_ecc(topology_die_id(m->extcpu), m);
> +	if (xec == 0 && decode_dram_ecc) {
> +		int node_id = 0;
> +
> +		if (bank_type == SMCA_UMC) {
> +			node_id = topology_die_id(m->extcpu);
> +		} else if (bank_type == SMCA_UMC_V2) {
> +			/*
> +			 * SMCA_UMC_V2 exists on GPU nodes, extract the node id
> +			 * from register MCA_IPID[47:44](InstanceIdHi).
> +			 * The InstanceIdHi field represents the instance ID of the GPU.
> +			 * Which needs to be mapped to a value used by Linux,
> +			 * where GPU nodes are simply numerically after the CPU nodes.
> +			 */
> +			node_id = ((m->ipid >> 44) & 0xF) -
> +				   amd_gpu_node_start_id() + amd_cpu_node_count();
> +		} else {
> +			return;
> +		}
> +
> +		decode_dram_ecc(node_id, m);
> +	}
>  }
>  
>  static inline void amd_decode_err_code(u16 ec)
> -- 

This looks good to me.

Reviewed-by: Yazen Ghannam <yazen.ghannam@amd.com>

Thanks,
Yazen

  reply	other threads:[~2021-10-21 15:56 UTC|newest]

Thread overview: 67+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-30 15:28 [PATCH 0/7] x86/edac/amd64: Add support for noncpu nodes Naveen Krishna Chatradhi
2021-06-30 15:28 ` [PATCH 1/7] x86/amd_nb: Add Aldebaran device to PCI IDs Naveen Krishna Chatradhi
2021-07-19 19:28   ` Yazen Ghannam
2021-08-10 12:45     ` Chatradhi, Naveen Krishna
2021-08-10 13:54       ` Borislav Petkov
2021-06-30 15:28 ` [PATCH 2/7] x86/amd_nb: Add support for northbridges on Aldebaran Naveen Krishna Chatradhi
2021-07-19 20:25   ` Yazen Ghannam
2021-08-10 12:45     ` Chatradhi, Naveen Krishna
2021-06-30 15:28 ` [PATCH 3/7] EDAC/mc: Add new HBM2 memory type Naveen Krishna Chatradhi
2021-07-19 20:47   ` Yazen Ghannam
2021-07-19 21:16     ` Luck, Tony
2021-07-20 12:13       ` Zhuo, Qiuxu
2021-07-20 16:30         ` [PATCH] EDAC/skx_common: Set the memory type correctly for HBM memory Luck, Tony
2021-07-20 16:33     ` [PATCH 3/7] EDAC/mc: Add new HBM2 memory type Luck, Tony
2021-06-30 15:28 ` [PATCH 4/7] EDAC/mce_amd: extract node id from InstanceHi in IPID Naveen Krishna Chatradhi
2021-07-29 16:32   ` Yazen Ghannam
2021-08-10 12:45     ` Chatradhi, Naveen Krishna
2021-06-30 15:28 ` [PATCH 5/7] EDAC/amd64: Enumerate memory on noncpu nodes Naveen Krishna Chatradhi
2021-07-29 17:55   ` Yazen Ghannam
2021-08-10 12:49     ` Chatradhi, Naveen Krishna
2021-06-30 15:28 ` [PATCH 6/7] EDAC/amd64: Add address translation support for DF3.5 Naveen Krishna Chatradhi
2021-07-29 17:59   ` Yazen Ghannam
2021-07-29 18:13     ` Chatradhi, Naveen Krishna
2021-06-30 15:28 ` [PATCH 7/7] EDAC/amd64: Add fixed UMC to CS mapping Naveen Krishna Chatradhi
2021-08-06  7:43 ` [PATCH v2 0/3] x86/edac/amd64: Add support for noncpu nodes Naveen Krishna Chatradhi
2021-08-06  7:43   ` [PATCH v2 1/3] x86/amd_nb: Add support for northbridges on Aldebaran Naveen Krishna Chatradhi
2021-08-20 15:36     ` Yazen Ghannam
2021-08-06  7:43   ` [PATCH v2 2/3] EDAC/mce_amd: Extract node id from InstanceHi in IPID Naveen Krishna Chatradhi
2021-08-20 15:43     ` Yazen Ghannam
2021-08-06  7:43   ` [PATCH v2 3/3] EDAC/amd64: Enumerate memory on noncpu nodes Naveen Krishna Chatradhi
2021-08-20 17:02     ` Yazen Ghannam
2021-08-23 16:56       ` Chatradhi, Naveen Krishna
2021-08-23 18:54     ` [PATCH v3 0/3] x86/edac/amd64: Add support for " Naveen Krishna Chatradhi
2021-08-23 18:54       ` [PATCH v3 1/3] x86/amd_nb: Add support for northbridges on Aldebaran Naveen Krishna Chatradhi
2021-08-25 10:42         ` Borislav Petkov
2021-09-01 18:17           ` Yazen Ghannam
2021-09-02 17:30             ` Borislav Petkov
2021-09-13 18:07               ` Yazen Ghannam
2021-09-16 16:36                 ` Borislav Petkov
2021-10-11 14:26           ` Chatradhi, Naveen Krishna
2021-10-11 18:08             ` Borislav Petkov
2021-08-23 18:54       ` [PATCH v3 2/3] EDAC/mce_amd: Extract node id from MCA_IPID Naveen Krishna Chatradhi
2021-08-27 10:24         ` Borislav Petkov
2021-09-01 18:18           ` Yazen Ghannam
2021-08-23 18:54       ` [PATCH v3 3/3] EDAC/amd64: Enumerate memory on noncpu nodes Naveen Krishna Chatradhi
2021-08-27 11:30         ` Borislav Petkov
2021-09-01 18:42           ` Yazen Ghannam
2021-09-08 18:41             ` Borislav Petkov
2021-09-13 18:19               ` Yazen Ghannam
2021-10-14 18:50       ` [PATCH v4 0/4] x86/edac/amd64: Add support for " Naveen Krishna Chatradhi
2021-10-14 18:50         ` [PATCH v4 1/4] x86/amd_nb: Add support for northbridges on Aldebaran Naveen Krishna Chatradhi
2021-10-14 18:50         ` [PATCH v4 2/4] EDAC/mce_amd: Extract node id from MCA_IPID Naveen Krishna Chatradhi
2021-10-14 18:50         ` [PATCH 3/4] EDAC/amd64: Extend family ops functions Naveen Krishna Chatradhi
2021-10-14 18:50         ` [PATCH 4/4] EDAC/amd64: Enumerate memory on Aldebaran GPU nodes Naveen Krishna Chatradhi
2021-10-14 18:53       ` [PATCH v4 0/4] x86/edac/amd64: Add support for noncpu nodes Naveen Krishna Chatradhi
2021-10-14 18:53         ` [PATCH v4 1/4] x86/amd_nb: Add support for northbridges on Aldebaran Naveen Krishna Chatradhi
2021-10-21 15:52           ` Yazen Ghannam
2021-10-14 18:53         ` [PATCH v4 2/4] EDAC/mce_amd: Extract node id from MCA_IPID Naveen Krishna Chatradhi
2021-10-21 15:55           ` Yazen Ghannam [this message]
2021-10-14 18:53         ` [PATCH v4 3/4] EDAC/amd64: Extend family ops functions Naveen Krishna Chatradhi
2021-10-21 16:27           ` Yazen Ghannam
2021-10-14 18:54         ` [PATCH v4 4/4] EDAC/amd64: Enumerate memory on Aldebaran GPU nodes Naveen Krishna Chatradhi
2021-10-21 16:40           ` Yazen Ghannam
2021-10-14 19:53         ` [PATCH v4 0/4] x86/edac/amd64: Add support for noncpu nodes Borislav Petkov
2021-10-15 12:18           ` Chatradhi, Naveen Krishna
2021-10-15 19:25             ` Borislav Petkov
2021-08-20 17:07   ` [PATCH v2 0/3] " Yazen Ghannam

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