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authorChristophe Lombard <clombard@linux.vnet.ibm.com>2016-03-04 12:26:38 +0100
committerMichael Ellerman <mpe@ellerman.id.au>2016-03-09 23:39:56 +1100
commit594ff7d067ca42676e27e2a7b5dcc0ff039d08ca (patch)
tree45824c4fb92c9450b86bfbb9ff19a0dd17cd2c93 /drivers/misc/cxl/base.c
parent4752876c71701b7663a5ded789058ab2c05f7d0f (diff)
downloadlinux-594ff7d067ca42676e27e2a7b5dcc0ff039d08ca.tar.bz2
cxl: Support to flash a new image on the adapter from a guest
The new flash.c file contains the logic to flash a new image on the adapter, through a hcall. It is an iterative process, with chunks of data of 1M at a time. There are also 2 phases: write and verify. The flash operation itself is driven from a user-land tool. Once flashing is successful, an rtas call is made to update the device tree with the new properties values for the adapter and the AFU(s) Add a new char device for the adapter, so that the flash tool can access the card, even if there is no valid AFU on it. Co-authored-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com> Reviewed-by: Manoj Kumar <manoj@linux.vnet.ibm.com> Acked-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/misc/cxl/base.c')
-rw-r--r--drivers/misc/cxl/base.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/misc/cxl/base.c b/drivers/misc/cxl/base.c
index a9f0dd3255a2..957f4dd23f40 100644
--- a/drivers/misc/cxl/base.c
+++ b/drivers/misc/cxl/base.c
@@ -84,3 +84,10 @@ void unregister_cxl_calls(struct cxl_calls *calls)
synchronize_rcu();
}
EXPORT_SYMBOL_GPL(unregister_cxl_calls);
+
+int cxl_update_properties(struct device_node *dn,
+ struct property *new_prop)
+{
+ return of_update_property(dn, new_prop);
+}
+EXPORT_SYMBOL_GPL(cxl_update_properties);