lib: sbi_platform: pass extension bitmap pointer to
From: Heiko Stuebner <heiko@...> Date: Wed, 20 Jul 2022 11:43:50 +0200
Commit-Message
The platform extension_init callback is called once per hart and if it's meant to handle platform-specific extensions it should have access to the extension bitmap to update it. Signed-off-by: Heiko Stuebner <heiko@...>
Patch-Comment
include/sbi/sbi_platform.h | 7 ++++--- lib/sbi/sbi_hart.c | 3 ++- 2 files changed, 6 insertions(+), 4 deletions(-)
Statistics
- 6 lines added
- 4 lines removed
Changes
-------------------------- include/sbi/sbi_platform.h --------------------------
index 87024db..1829e2e 100644
@@ -90,7 +90,7 @@ struct sbi_platform_operations {
int (*misa_get_xlen)(void);
/** Initialize (or populate) HART extensions for the platform */
+ int (*extensions_init)(unsigned long *extensions);
/** Initialize (or populate) domains for the platform */
int (*domains_init)(void);
@@ -464,10 +464,11 @@ static inline int sbi_platform_misa_xlen(const struct sbi_platform *plat)
* @return 0 on success and negative error code on failure
*/
static inline int sbi_platform_extensions_init(
+ const struct sbi_platform *plat,
+ unsigned long *extensions)
{
if (plat && sbi_platform_ops(plat)->extensions_init)
+ return sbi_platform_ops(plat)->extensions_init(extensions);
return 0;
}
------------------------------ lib/sbi/sbi_hart.c ------------------------------
index de86fee..50e5907 100644
@@ -682,7 +682,8 @@ __mhpm_skip:
}
/* Let platform populate extensions */
+ rc = sbi_platform_extensions_init(sbi_platform_thishart_ptr(),
+ &hfeatures->extensions);
if (rc)
return rc;