slab: Convert to C

Signed-off-by: Pedro Falcato <[email protected]>

kernel/include/onyx/cpu.h

@@ -333,6 +333,8 @@ struct cpu_message
     struct list_head node;
 };
 
+__BEGIN_CDECLS
+
 void cpu_identify();
 void cpu_init_late();
 unsigned int get_nr_cpus();
@@ -347,6 +349,8 @@ void cpu_messages_init(unsigned int cpu);
 void *cpu_handle_messages(void *stack);
 void *cpu_resched(void *stack);
 
+__END_CDECLS
+
 /* CPU messages */
 #define CPU_KILL        (unsigned long) -1
 #define CPU_TRY_RESCHED (unsigned long) 0

kernel/include/onyx/cpumask.h

@@ -6,9 +6,7 @@
 #ifndef _ONYX_CPUMASK_H
 #define _ONYX_CPUMASK_H
 
-#ifndef CONFIG_SMP_NR_CPUS
-#define CONFIG_SMP_NR_CPUS 64
-#endif
+#include <string.h>
 
 struct cpumask
 {
@@ -17,7 +15,7 @@ struct cpumask
     unsigned long mask[CPUMASK_SIZE];
 
 #ifdef __cplusplus
-    explicit constexpr cpumask() : mask{}
+    constexpr cpumask() : mask{}
     {
     }
 
@@ -200,4 +198,12 @@ struct cpumask
 #endif
 };
 
+static inline struct cpumask cpumask_all_but_one(unsigned long cpu)
+{
+    struct cpumask c;
+    memset(&c, 0xff, sizeof(c));
+    c.mask[cpu / LONG_SIZE_BITS] &= ~(1UL << (cpu % LONG_SIZE_BITS));
+    return c;
+}
+
 #endif

kernel/include/onyx/mm/kasan.h

@@ -13,26 +13,23 @@
 #include <stddef.h>
 #include <stdint.h>
 
+#include <onyx/compiler.h>
+
+__BEGIN_CDECLS
+
 void kasan_init();
 int kasan_alloc_shadow(unsigned long addr, size_t size, bool accessible);
 
-#ifdef __cplusplus
-extern "C"
-#endif
-    void
-    kasan_set_state(unsigned long *ptr, size_t size, int state);
+void kasan_set_state(unsigned long *ptr, size_t size, int state);
 void asan_unpoison_shadow(unsigned long addr, size_t size);
 void asan_poison_shadow(unsigned long addr, size_t size, uint8_t value);
 
 /**
  * @brief Flush the KASAN memory quarantine
  *
  */
-#ifdef __cplusplus
-extern "C"
-#endif
-    void
-    kasan_flush_quarantine();
+
+void kasan_flush_quarantine();
 
 /**
  * @brief Add a chunk to the KASAN quarantine
@@ -58,4 +55,5 @@ size_t kasan_get_redzone_size(size_t objsize);
 #define KASAN_QUARANTINED  0x9e
 #define KASAN_LEFT_REDZONE 0xfa
 
+__END_CDECLS
 #endif

kernel/include/onyx/smp.h

@@ -10,12 +10,15 @@
 
 #include <stddef.h>
 
+#include <onyx/cpumask.h>
 #include <onyx/limits.h>
 #include <onyx/percpu.h>
 
-#ifdef __cplusplus
+#define SYNC_CALL_NOWAIT (1 << 0)
 
-#include <onyx/cpumask.h>
+typedef void (*sync_call_func)(void *context);
+
+#ifdef __cplusplus
 
 namespace smp
 {
@@ -27,10 +30,6 @@ unsigned int get_online_cpus();
 
 void boot_cpus();
 
-using sync_call_func = void (*)(void *context);
-
-#define SYNC_CALL_NOWAIT (1 << 0)
-
 /**
  * @brief Calls f on every CPU
  *
@@ -89,6 +88,16 @@ __attribute__((always_inline)) static inline unsigned int get_cpu_nr()
 void smp_parse_cpus(void *madt);
 void smp_boot_cpus();
 
+/**
+ * @brief Calls f on every CPU
+ *
+ * @param f The function to call on every cpu
+ * @param context Context to get passed to f
+ * @param mask Mask of cpus that will execute this
+ * @param flags Flags for the sync call
+ */
+void smp_sync_call(sync_call_func f, void *context, const struct cpumask *mask, unsigned int flags);
+
 #ifdef __cplusplus
 }
 #endif

kernel/include/onyx/utils.h

@@ -39,6 +39,8 @@ __END_CDECLS
         __auto_type __y = y;   \
         __x > __y ? __x : __y; \
     })
+
+#define align_up2(number, alignment) (((number) + ((alignment) -1)) & -(alignment))
 #else
 
 template <typename Type>

kernel/kernel/mm/Makefile

@@ -1,4 +1,4 @@
-mm-y:= bootmem.o page.o pagealloc.o vm_object.o vm.o vmalloc.o reclaim.o anon.o mincore.o page_lru.o swap.o rmap.o
+mm-y:= bootmem.o page.o pagealloc.o vm_object.o vm.o vmalloc.o reclaim.o anon.o mincore.o page_lru.o swap.o rmap.o slab_cache_pool.o
 mm-$(CONFIG_KUNIT)+= vm_tests.o
 mm-$(CONFIG_X86)+= memory.o
 mm-$(CONFIG_RISCV)+= memory.o