CBMEM: Implement cbmem_run_init_hooks() stub

Until we completely can unify early_variables, use these to
handle CBMEM update hooks for both romstage and ramstage.

For x86, CAR_MIGRATE serves the purpose of romstage hooks.

Change-Id: I100ebc0e35e1b7091b4f287ca37f539fd7c9fa7a
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/7876
Reviewed-by: Aaron Durbin <adurbin@google.com>
Tested-by: build bot (Jenkins)

src/arch/arm/tables.c

@@ -29,14 +29,6 @@
 
 #define MAX_COREBOOT_TABLE_SIZE (8 * 1024)
 
-void cbmem_arch_init(void)
-{
-}
-
-void cbmem_fail_resume(void)
-{
-}
-
 void write_tables(void)
 {
 	unsigned long table_pointer, new_table_pointer;

src/arch/arm64/tables.c

@@ -29,14 +29,6 @@
 
 #define MAX_COREBOOT_TABLE_SIZE (8 * 1024)
 
-void cbmem_arch_init(void)
-{
-}
-
-void cbmem_fail_resume(void)
-{
-}
-
 void write_tables(void)
 {
 	unsigned long table_pointer, new_table_pointer;

src/arch/riscv/tables.c

@@ -29,10 +29,6 @@
 
 #define MAX_COREBOOT_TABLE_SIZE (8 * 1024)
 
-void cbmem_arch_init(void)
-{
-}
-
 // WTF. this does not agre with the prototype!
 static struct lb_memory *wtf_write_tables(void)
 {
@@ -70,7 +66,3 @@ void write_tables(void)
 {
 	wtf_write_tables();
 }
-
-void cbmem_fail_resume(void)
-{
-}

src/arch/x86/boot/cbmem.c

@@ -20,6 +20,9 @@
 #include <cbmem.h>
 #include <arch/acpi.h>
 
+/* FIXME: Remove after CBMEM_INIT_HOOKS. */
+#include <cpu/x86/gdt.h>
+
 #if !CONFIG_DYNAMIC_CBMEM
 void get_cbmem_table(uint64_t *base, uint64_t *size)
 {
@@ -69,16 +72,19 @@ void *cbmem_top(void)
 
 #endif /* DYNAMIC_CBMEM */
 
-#if !defined(__PRE_RAM__)
-
-/* ACPI resume needs to be cleared in the fail-to-recover case, but that
- * condition is only handled during ramstage. */
-void cbmem_fail_resume(void)
+void cbmem_run_init_hooks(void)
 {
-#if CONFIG_HAVE_ACPI_RESUME
-	/* Something went wrong, our high memory area got wiped */
-	acpi_fail_wakeup();
+#if !defined(__PRE_RAM__)
+	move_gdt();
 #endif
 }
 
-#endif /* !__PRE_RAM__ */
+/* Something went wrong, our high memory area got wiped */
+void cbmem_fail_resume(void)
+{
+#if !defined(__PRE_RAM__) && IS_ENABLED(CONFIG_HAVE_ACPI_RESUME)
+	/* ACPI resume needs to be cleared in the fail-to-recover case, but that
+	 * condition is only handled during ramstage. */
+	acpi_fail_wakeup();
+#endif
+}

src/arch/x86/boot/tables.c

@@ -21,7 +21,6 @@
 
 #include <console/console.h>
 #include <cpu/cpu.h>
-#include <cpu/x86/gdt.h>
 #include <boot/tables.h>
 #include <boot/coreboot_tables.h>
 #include <arch/pirq_routing.h>
@@ -31,13 +30,6 @@
 #include <cbmem.h>
 #include <smbios.h>
 
-
-void cbmem_arch_init(void)
-{
-	/* defined in gdt.c */
-	move_gdt();
-}
-
 void write_tables(void)
 {
 	unsigned long low_table_start, low_table_end;

src/include/cbmem.h

@@ -213,17 +213,15 @@ void *cbmem_add(u32 id, u64 size);
 /* Find a cbmem entry of a given id. These return NULL on failure. */
 void *cbmem_find(u32 id);
 
+void cbmem_run_init_hooks(void);
+void cbmem_fail_resume(void);
+
 #ifndef __PRE_RAM__
 /* Ramstage only functions. */
 /* Add the cbmem memory used to the memory map at boot. */
 void cbmem_add_bootmem(void);
 void cbmem_list(void);
-void cbmem_arch_init(void);
 void cbmem_print_entry(int n, u32 id, u64 start, u64 size);
-void cbmem_fail_resume(void);
-#else
-static inline void cbmem_arch_init(void) {}
-static inline void cbmem_fail_resume(void) {}
 #endif /* __PRE_RAM__ */
 
 #endif /* __ASSEMBLER__ */

src/lib/cbmem.c

@@ -243,7 +243,7 @@ int cbmem_recovery(int is_wakeup)
 		cbmem_fail_resume();
 	}
 
-	cbmem_arch_init();
+	cbmem_run_init_hooks();
 	car_migrate_variables();
 	return !found;
 }

src/lib/cbmem_common.c

@@ -47,3 +47,14 @@ void cbmem_print_entry(int n, u32 id, u64 base, u64 size)
 }
 
 #endif /* !__PRE_RAM__ */
+
+/* FIXME: Replace with CBMEM_INIT_HOOKS API. */
+#if !IS_ENABLED(CONFIG_ARCH_X86)
+void cbmem_run_init_hooks(void)
+{
+}
+
+void __attribute__((weak)) cbmem_fail_resume(void)
+{
+}
+#endif

src/lib/dynamic_cbmem.c

@@ -171,7 +171,7 @@ void cbmem_initialize_empty(void)
 	printk(BIOS_DEBUG, "CBMEM: root @ %p %d entries.\n",
 	       root, root->max_entries);
 
-	cbmem_arch_init();
+	cbmem_run_init_hooks();
 
 	/* Migrate cache-as-ram variables. */
 	car_migrate_variables();
@@ -249,7 +249,7 @@ int cbmem_initialize(void)
 	root->locked = 1;
 #endif
 
-	cbmem_arch_init();
+	cbmem_run_init_hooks();
 
 	/* Migrate cache-as-ram variables. */
 	car_migrate_variables();