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Message-ID: <20241017165225.21206-20-alejandro.lucero-palau@amd.com>
Date: Thu, 17 Oct 2024 17:52:18 +0100
From: <alejandro.lucero-palau@....com>
To: <linux-cxl@...r.kernel.org>, <netdev@...r.kernel.org>,
<dan.j.williams@...el.com>, <martin.habets@...inx.com>,
<edward.cree@....com>, <davem@...emloft.net>, <kuba@...nel.org>,
<pabeni@...hat.com>, <edumazet@...gle.com>
CC: Alejandro Lucero <alucerop@....com>
Subject: [PATCH v4 19/26] cxl: make region type based on endpoint type
From: Alejandro Lucero <alucerop@....com>
Current code is expecting Type3 or CXL_DECODER_HOSTONLYMEM devices only.
Support for Type2 implies region type needs to be based on the endpoint
type instead.
Signed-off-by: Alejandro Lucero <alucerop@....com>
---
drivers/cxl/core/region.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c
index 3d5f40507df9..5c0a40fa1b10 100644
--- a/drivers/cxl/core/region.c
+++ b/drivers/cxl/core/region.c
@@ -2665,7 +2665,8 @@ static ssize_t create_ram_region_show(struct device *dev,
}
static struct cxl_region *__create_region(struct cxl_root_decoder *cxlrd,
- enum cxl_decoder_mode mode, int id)
+ enum cxl_decoder_mode mode, int id,
+ enum cxl_decoder_type target_type)
{
int rc;
@@ -2687,7 +2688,7 @@ static struct cxl_region *__create_region(struct cxl_root_decoder *cxlrd,
return ERR_PTR(-EBUSY);
}
- return devm_cxl_add_region(cxlrd, id, mode, CXL_DECODER_HOSTONLYMEM);
+ return devm_cxl_add_region(cxlrd, id, mode, target_type);
}
static ssize_t create_pmem_region_store(struct device *dev,
@@ -2702,7 +2703,8 @@ static ssize_t create_pmem_region_store(struct device *dev,
if (rc != 1)
return -EINVAL;
- cxlr = __create_region(cxlrd, CXL_DECODER_PMEM, id);
+ cxlr = __create_region(cxlrd, CXL_DECODER_PMEM, id,
+ CXL_DECODER_HOSTONLYMEM);
if (IS_ERR(cxlr))
return PTR_ERR(cxlr);
@@ -2722,7 +2724,8 @@ static ssize_t create_ram_region_store(struct device *dev,
if (rc != 1)
return -EINVAL;
- cxlr = __create_region(cxlrd, CXL_DECODER_RAM, id);
+ cxlr = __create_region(cxlrd, CXL_DECODER_RAM, id,
+ CXL_DECODER_HOSTONLYMEM);
if (IS_ERR(cxlr))
return PTR_ERR(cxlr);
@@ -3382,7 +3385,8 @@ static struct cxl_region *construct_region(struct cxl_root_decoder *cxlrd,
do {
cxlr = __create_region(cxlrd, cxled->mode,
- atomic_read(&cxlrd->region_id));
+ atomic_read(&cxlrd->region_id),
+ cxled->cxld.target_type);
} while (IS_ERR(cxlr) && PTR_ERR(cxlr) == -EBUSY);
if (IS_ERR(cxlr)) {
--
2.17.1
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