public inbox for linux-cxl@vger.kernel.org
 help / color / mirror / Atom feed
From: Yanfei Xu <yanfei.xu@intel.com>
To: linux-cxl@vger.kernel.org
Cc: dave@stgolabs.net, jonathan.cameron@huawei.com,
	dave.jiang@intel.com, alison.schofield@intel.com,
	vishal.l.verma@intel.com, ira.weiny@intel.com,
	dan.j.williams@intel.com, ming4.li@intel.com,
	yanfei.xu@intel.com
Subject: [v3 3/4] cxl/pci: Check Mem_info_valid bit for each applicable DVSEC
Date: Tue, 13 Aug 2024 19:05:31 +0800	[thread overview]
Message-ID: <20240813110532.870869-4-yanfei.xu@intel.com> (raw)
In-Reply-To: <20240813110532.870869-1-yanfei.xu@intel.com>

The right way is to checking Mem_info_valid bit for each applicable
DVSEC range against HDM_COUNT, not only for the DVSEC range 1, hence
let's move the check into the "for loop" of handling each DVSEC range.

Signed-off-by: Yanfei Xu <yanfei.xu@intel.com>
---
 drivers/cxl/core/pci.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/cxl/core/pci.c b/drivers/cxl/core/pci.c
index 38c567727dbb..519989ada48e 100644
--- a/drivers/cxl/core/pci.c
+++ b/drivers/cxl/core/pci.c
@@ -324,10 +324,6 @@ int cxl_dvsec_rr_decode(struct device *dev, struct cxl_port *port,
 	if (!hdm_count || hdm_count > 2)
 		return -EINVAL;
 
-	rc = cxl_dvsec_mem_range_valid(cxlds, 0);
-	if (rc)
-		return rc;
-
 	/*
 	 * The current DVSEC values are moot if the memory capability is
 	 * disabled, and they will remain moot after the HDM Decoder
@@ -345,6 +341,10 @@ int cxl_dvsec_rr_decode(struct device *dev, struct cxl_port *port,
 		u64 base, size;
 		u32 temp;
 
+		rc = cxl_dvsec_mem_range_valid(cxlds, i);
+		if (rc)
+			return rc;
+
 		rc = pci_read_config_dword(
 			pdev, d + CXL_DVSEC_RANGE_SIZE_HIGH(i), &temp);
 		if (rc)
-- 
2.39.2


  parent reply	other threads:[~2024-08-13 11:13 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-08-13 11:05 [v3 0/4] Fixes for hdm docoder initialization from DVSEC ranges Yanfei Xu
2024-08-13 11:05 ` [v3 1/4] cxl/pci: Fix to record only non-zero ranges Yanfei Xu
2024-08-27 16:11   ` Jonathan Cameron
2024-08-13 11:05 ` [v3 2/4] cxl/pci: Remove duplicated implementation of waiting for memory_info_valid Yanfei Xu
2024-08-27 16:16   ` Jonathan Cameron
2024-08-28  2:49     ` Yanfei Xu
2024-08-13 11:05 ` Yanfei Xu [this message]
2024-08-27 16:22   ` [v3 3/4] cxl/pci: Check Mem_info_valid bit for each applicable DVSEC Jonathan Cameron
2024-08-28  2:54     ` Yanfei Xu
2024-08-13 11:05 ` [v3 4/4] cxl/pci: simplify the check of mem_enabled in cxl_hdm_decode_init() Yanfei Xu
2024-08-27 16:25   ` Jonathan Cameron
2024-08-27  5:04 ` [v3 0/4] Fixes for hdm docoder initialization from DVSEC ranges Yanfei Xu
2024-08-27 16:08 ` Jonathan Cameron
2024-08-28  2:45   ` Yanfei Xu

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20240813110532.870869-4-yanfei.xu@intel.com \
    --to=yanfei.xu@intel.com \
    --cc=alison.schofield@intel.com \
    --cc=dan.j.williams@intel.com \
    --cc=dave.jiang@intel.com \
    --cc=dave@stgolabs.net \
    --cc=ira.weiny@intel.com \
    --cc=jonathan.cameron@huawei.com \
    --cc=linux-cxl@vger.kernel.org \
    --cc=ming4.li@intel.com \
    --cc=vishal.l.verma@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox