Linux CXL
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From: Ben Cheatham <Benjamin.Cheatham@amd.com>
To: <linux-cxl@vger.kernel.org>, <dave@stgolabs.net>,
	<jic23@kernel.org>, <dave.jiang@intel.com>,
	<alison.schofield@intel.com>
Cc: <linux-iommu@vger.kernel.org>, <benjamin.cheatham@amd.com>,
	<terry.bowman@amd.com>, <robert.richter@amd.com>
Subject: [PATCH 15/15] cxl/cache: Enable CXL.cache on successful probe
Date: Wed, 23 Sep 2026 12:33:42 -0500	[thread overview]
Message-ID: <20260923173342.5584-16-Benjamin.Cheatham@amd.com> (raw)
In-Reply-To: <20260923173342.5584-1-Benjamin.Cheatham@amd.com>

Enable CXL.cache as the final action of cxl_cache::probe(). After this,
devices may allocate snoop filter capacity and set up DMA regions for
using CXL.cache.

Signed-off-by: Ben Cheatham <Benjamin.Cheatham@amd.com>
---
 drivers/cxl/cache.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cxl/cache.c b/drivers/cxl/cache.c
index f73bf96d231e..a321c4a55f82 100644
--- a/drivers/cxl/cache.c
+++ b/drivers/cxl/cache.c
@@ -261,7 +261,7 @@ static int cxl_cache_probe(struct device *dev)
 
 	cxlcd->cxlds->cstate.gid = rc;
 
- 	return 0;
+	return devm_cxl_enable_cache(&cxlcd->dev, cxlcd->cxlds);
 }
 
 static struct cxl_driver cxl_cache_driver = {
-- 
2.53.0


  parent reply	other threads:[~2026-09-23 17:34 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-23 17:33 [PATCH 00/15] Add initial CXL.cache support Ben Cheatham
2026-09-23 17:33 ` [PATCH 01/15] cxl/core: Add CXL.cache device struct Ben Cheatham
2026-09-23 17:41   ` sashiko-bot
2026-09-23 17:33 ` [PATCH 02/15] cxl/cache: Add cxl_cache driver Ben Cheatham
2026-09-23 17:49   ` sashiko-bot
2026-09-23 17:33 ` [PATCH 03/15] cxl/core: Change cxl_ep_load() to use device pointer parameter Ben Cheatham
2026-09-23 17:33 ` [PATCH 04/15] cxl/core: Update devm_cxl_enumerate_ports() for cxl_cachedevs Ben Cheatham
2026-09-23 17:33 ` [PATCH 05/15] cxl/port: Split endpoint port probe on device type Ben Cheatham
2026-09-23 17:46   ` sashiko-bot
2026-09-23 17:33 ` [PATCH 06/15] cxl/core: Update devm_cxl_add_endpoint() for cxl_cachedevs Ben Cheatham
2026-09-23 17:51   ` sashiko-bot
2026-09-23 17:33 ` [PATCH 07/15] cxl/cache: Verify port hierarchy has CXL.cache enabled Ben Cheatham
2026-09-23 17:33 ` [PATCH 08/15] cxl/core, cache: Add Cache ID register probing and init Ben Cheatham
2026-09-23 17:46   ` sashiko-bot
2026-09-23 17:33 ` [PATCH 09/15] cxl/core: Add Cache ID verification Ben Cheatham
2026-09-23 17:49   ` sashiko-bot
2026-09-23 17:33 ` [PATCH 10/15] cxl/core: Add Cache ID allocation Ben Cheatham
2026-09-23 17:49   ` sashiko-bot
2026-09-23 17:33 ` [PATCH 11/15] cxl/core: Add support for HDM-D cache id programming Ben Cheatham
2026-09-23 17:51   ` sashiko-bot
2026-09-23 17:33 ` [PATCH 12/15] cxl/cache: Add snoop filter creation and set up Ben Cheatham
2026-09-23 17:50   ` sashiko-bot
2026-09-23 17:33 ` [PATCH 13/15] cxl/cache: Add snoop filter allocation Ben Cheatham
2026-09-23 17:58   ` sashiko-bot
2026-09-23 17:33 ` [PATCH 14/15] iommu, cxl: Configure IOMMU for CXL.cache Ben Cheatham
2026-09-23 17:57   ` sashiko-bot
2026-09-23 17:33 ` Ben Cheatham [this message]
2026-09-23 17:35 ` [PATCH 00/15] Add initial CXL.cache support Cheatham, Benjamin

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