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From: Yazen Ghannam <yazen.ghannam@amd.com>
To: linux-edac@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, bp@alien8.de, mchehab@kernel.org,
	tony.luck@intel.com, Smita.KoralahalliChannabasappa@amd.com,
	Yazen Ghannam <yazen.ghannam@amd.com>
Subject: [PATCH v2 20/31] EDAC/amd64: Define function to get number of interleaved sockets
Date: Wed, 23 Jun 2021 19:19:51 +0000	[thread overview]
Message-ID: <20210623192002.3671647-21-yazen.ghannam@amd.com> (raw)
In-Reply-To: <20210623192002.3671647-1-yazen.ghannam@amd.com>

Move parsing of the number of interleaved sockets to a separate helper
function. This will be expanded for future DF versions.

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
---
Link:
https://lkml.kernel.org/r/20210507190140.18854-17-Yazen.Ghannam@amd.com

v1->v2:
* Moved from arch/x86 to EDAC.
* Add new function to data_fabric_ops.

 drivers/edac/amd64_edac.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 360fbecf0d8b..09cdc0466ae2 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -1099,6 +1099,7 @@ struct addr_ctx {
 	u8 intlv_addr_bit;
 	u8 intlv_num_chan;
 	u8 intlv_num_dies;
+	u8 intlv_num_sockets;
 	u8 cs_id;
 	int (*dehash_addr)(struct addr_ctx *ctx);
 };
@@ -1107,6 +1108,7 @@ struct data_fabric_ops {
 	u64 (*get_hi_addr_offset)(struct addr_ctx *ctx);
 	int (*get_intlv_mode)(struct addr_ctx *ctx);
 	void (*get_intlv_num_dies)(struct addr_ctx *ctx);
+	void (*get_intlv_num_sockets)(struct addr_ctx *ctx);
 };
 
 static u64 get_hi_addr_offset_df2(struct addr_ctx *ctx)
@@ -1152,10 +1154,16 @@ static void get_intlv_num_dies_df2(struct addr_ctx *ctx)
 	ctx->intlv_num_dies  = (ctx->reg_limit_addr >> 10) & 0x3;
 }
 
+static void get_intlv_num_sockets_df2(struct addr_ctx *ctx)
+{
+	ctx->intlv_num_sockets = (ctx->reg_limit_addr >> 8) & 0x1;
+}
+
 struct data_fabric_ops df2_ops = {
 	.get_hi_addr_offset		=	&get_hi_addr_offset_df2,
 	.get_intlv_mode			=	&get_intlv_mode_df2,
 	.get_intlv_num_dies		=	&get_intlv_num_dies_df2,
+	.get_intlv_num_sockets		=	&get_intlv_num_sockets_df2,
 };
 
 struct data_fabric_ops *df_ops;
@@ -1257,7 +1265,6 @@ static int denormalize_addr(struct addr_ctx *ctx)
 	u32 tmp;
 
 	u8 die_id_shift, die_id_mask, socket_id_shift, socket_id_mask;
-	u8 intlv_num_sockets;
 	u8 num_intlv_bits, cs_mask = 0;
 
 	/* Return early if no interleaving. */
@@ -1267,16 +1274,13 @@ static int denormalize_addr(struct addr_ctx *ctx)
 	if (get_intlv_addr_bit(ctx))
 		return -EINVAL;
 
-	intlv_num_sockets = (ctx->reg_limit_addr >> 8) & 0x1;
-
 	get_intlv_num_chan(ctx);
 	df_ops->get_intlv_num_dies(ctx);
+	df_ops->get_intlv_num_sockets(ctx);
 
 	num_intlv_bits = ctx->intlv_num_chan;
 	num_intlv_bits += ctx->intlv_num_dies;
-
-	/* Add a bit if sockets are interleaved. */
-	num_intlv_bits += intlv_num_sockets;
+	num_intlv_bits += ctx->intlv_num_sockets;
 
 	/* Assert num_intlv_bits <= 4 */
 	if (num_intlv_bits > 4) {
@@ -1311,7 +1315,7 @@ static int denormalize_addr(struct addr_ctx *ctx)
 
 		sock_id_bit = die_id_bit;
 
-		if (ctx->intlv_num_dies || intlv_num_sockets)
+		if (ctx->intlv_num_dies || ctx->intlv_num_sockets)
 			if (amd_df_indirect_read(ctx->nid, df_regs[SYS_FAB_ID_MASK],
 						 ctx->inst_id, &tmp))
 				return -EINVAL;
@@ -1327,7 +1331,7 @@ static int denormalize_addr(struct addr_ctx *ctx)
 		}
 
 		/* If interleaved over more than 1 socket. */
-		if (intlv_num_sockets) {
+		if (ctx->intlv_num_sockets) {
 			socket_id_shift	= (tmp >> 28) & 0xF;
 			socket_id_mask	= (tmp >> 16) & 0xFF;
 
-- 
2.25.1


  parent reply	other threads:[~2021-06-23 19:22 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-23 19:19 [PATCH v2 00/31] AMD MCA Address Translation Updates Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 01/31] x86/MCE/AMD, EDAC/amd64: Move address translation to AMD64 EDAC Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 02/31] x86/amd_nb, EDAC/amd64: Move DF Indirect Read " Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 03/31] EDAC/amd64: Don't use naked values for DF registers Yazen Ghannam
2021-06-25 15:21   ` Borislav Petkov
2021-07-08 19:35     ` Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 04/31] EDAC/amd64: Allow for DF Indirect Broadcast reads Yazen Ghannam
2021-06-30 16:22   ` Borislav Petkov
2021-07-08 19:44     ` Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 05/31] EDAC/amd64: Add context struct Yazen Ghannam
2021-06-30 17:17   ` Borislav Petkov
2021-07-08 19:53     ` Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 06/31] EDAC/amd64: Define Data Fabric operations Yazen Ghannam
2021-06-30 17:19   ` Borislav Petkov
2021-07-08 19:55     ` Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 07/31] EDAC/amd64: Define functions for DramOffset Yazen Ghannam
2021-06-30 17:27   ` Borislav Petkov
2021-07-08 20:08     ` Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 08/31] EDAC/amd64: Define function to read DRAM address map registers Yazen Ghannam
2021-06-30 17:29   ` Borislav Petkov
2021-06-23 19:19 ` [PATCH v2 09/31] EDAC/amd64: Define function to find interleaving mode Yazen Ghannam
2021-06-30 17:33   ` Borislav Petkov
2021-07-08 20:09     ` Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 10/31] EDAC/amd64: Define function to denormalize address Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 11/31] EDAC/amd64: Define function to add DRAM base and hole Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 12/31] EDAC/amd64: Define function to dehash address Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 13/31] EDAC/amd64: Define function to check DRAM limit address Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 14/31] EDAC/amd64: Remove goto statements Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 15/31] EDAC/amd64: Simplify function parameters Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 16/31] EDAC/amd64: Define function to get Interleave Address Bit Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 17/31] EDAC/amd64: Skip denormalization if no interleaving Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 18/31] EDAC/amd64: Define function to get number of interleaved channels Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 19/31] EDAC/amd64: Define function to get number of interleaved dies Yazen Ghannam
2021-06-23 19:19 ` Yazen Ghannam [this message]
2021-06-23 19:19 ` [PATCH v2 21/31] EDAC/amd64: Remove unnecessary assert Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 22/31] EDAC/amd64: Define function to make space for CS ID Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 23/31] EDAC/amd64: Define function to calculate " Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 24/31] EDAC/amd64: Define function to insert CS ID into address Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 25/31] EDAC/amd64: Define function to get CS Fabric ID Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 26/31] EDAC/amd64: Define function to find shift and mask values Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 27/31] EDAC/amd64: Update CS ID calculation to match reference code Yazen Ghannam
2021-06-23 19:19 ` [PATCH v2 28/31] EDAC/amd64: Match hash function to " Yazen Ghannam
2021-06-23 19:20 ` [PATCH v2 29/31] EDAC/amd64: Define helper function to get interleave address select bit Yazen Ghannam
2021-06-23 19:20 ` [PATCH v2 30/31] EDAC/amd64: Add support for address translation on DF3 systems Yazen Ghannam
2021-06-23 19:20 ` [PATCH v2 31/31] EDAC/amd64: Add glossary of acronyms for address translation Yazen Ghannam

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