platform: generic: add extensions_init handler and
From: Heiko Stuebner <heiko@...> Date: Wed, 20 Jul 2022 11:32:51 +0200
Commit-Message
Init of non-standard extensions is a platform-specific thing, so allow generic platforms to do this via a platform-override. Signed-off-by: Heiko Stuebner <heiko@...>
Patch-Comment
platform/generic/include/platform_override.h | 3 +++ platform/generic/platform.c | 10 ++++++++++ 2 files changed, 13 insertions(+)
Statistics
- 13 lines added
- 0 lines removed
Changes
----------------- platform/generic/include/platform_override.h -----------------
index e55da25..7f1558d 100644
@@ -10,6 +10,7 @@
#ifndef __PLATFORM_OVERRIDE_H__
#define __PLATFORM_OVERRIDE_H__
+#include <sbi/sbi_hart.h>
#include <sbi/sbi_types.h>
#include <sbi/sbi_trap.h>
@@ -22,6 +23,8 @@ struct platform_override {
void (*early_exit)(const struct fdt_match *match);
void (*final_exit)(const struct fdt_match *match);
int (*fdt_fixup)(void *fdt, const struct fdt_match *match);
+ int (*extensions_init)(const struct fdt_match *match,
+ struct sbi_hart_features *hfeatures);
int (*vendor_ext_check)(long extid, const struct fdt_match *match);
int (*vendor_ext_provider)(long extid, long funcid,
const struct sbi_trap_regs *regs,
------------------------- platform/generic/platform.c --------------------------
index bf51aba..595b0fd 100644
@@ -204,6 +204,15 @@ static void generic_final_exit(void)
generic_plat->final_exit(generic_plat_match);
}
+static int generic_extensions_init(struct sbi_hart_features *hfeatures)
+{
+ if (generic_plat && generic_plat->extensions_init)
+ return generic_plat->extensions_init(generic_plat_match,
+ hfeatures);
+
+ return 0;
+}
+
static int generic_domains_init(void)
{
return fdt_domains_populate(fdt_get_address());
@@ -257,6 +266,7 @@ const struct sbi_platform_operations platform_ops = {
.final_init = generic_final_init,
.early_exit = generic_early_exit,
.final_exit = generic_final_exit,
+ .extensions_init = generic_extensions_init,
.domains_init = generic_domains_init,
.console_init = generic_console_init,
.irqchip_init = fdt_irqchip_init,