[v5,11/27] cxl: add function for setting media ready by a driver

Commit Message

Lucero Palau, Alejandro Nov. 18, 2024, 4:44 p.m. UTC

From: Alejandro Lucero <[e-mail]>

A Type-2 driver can require to set the memory availability explicitly.

Add a function to the exported CXL API for accelerator drivers.

Signed-off-by: Alejandro Lucero <[e-mail]>
---
 drivers/cxl/core/memdev.c | 6 ++++++
 include/cxl/cxl.h         | 1 +
 2 files changed, 7 insertions(+)

Patch

diff --git a/drivers/cxl/core/memdev.c b/drivers/cxl/core/memdev.c
index 7450172c1864..d746c8a1021c 100644
--- a/drivers/cxl/core/memdev.c
+++ b/drivers/cxl/core/memdev.c
@@ -795,6 +795,12 @@  int cxl_release_resource(struct cxl_dev_state *cxlds, enum cxl_resource type)
 }
 EXPORT_SYMBOL_NS_GPL(cxl_release_resource, CXL);
 
+void cxl_set_media_ready(struct cxl_dev_state *cxlds)
+{
+	cxlds->media_ready = true;
+}
+EXPORT_SYMBOL_NS_GPL(cxl_set_media_ready, CXL);
+
 static int cxl_memdev_release_file(struct inode *inode, struct file *file)
 {
 	struct cxl_memdev *cxlmd =
diff --git a/include/cxl/cxl.h b/include/cxl/cxl.h
index e0bafd066b93..6033ce84b3d3 100644
--- a/include/cxl/cxl.h
+++ b/include/cxl/cxl.h
@@ -56,4 +56,5 @@  bool cxl_pci_check_caps(struct cxl_dev_state *cxlds,
 int cxl_pci_accel_setup_regs(struct pci_dev *pdev, struct cxl_dev_state *cxlds);
 int cxl_request_resource(struct cxl_dev_state *cxlds, enum cxl_resource type);
 int cxl_release_resource(struct cxl_dev_state *cxlds, enum cxl_resource type);
+void cxl_set_media_ready(struct cxl_dev_state *cxlds);
 #endif