Changes in kernel/arch/riscv64/src/mm/page.c [295ee02:83dab11] in mainline

File:

• kernel/arch/riscv64/src/mm/page.c (modified) (3 diffs)

kernel/arch/riscv64/src/mm/page.c

@@ -36 +36 @@
 #include <genarch/mm/page_pt.h>
 #include <arch/mm/frame.h>
-#include <arch/cpu.h>
 #include <mm/frame.h>
 #include <mm/page.h>
@@ -51 +50 @@
 void page_arch_init(void)
 {
-        if (config.cpu_active == 1) {
+        if (config.cpu_active == 1)
                 page_mapping_operations = &pt_mapping_operations;
-                
-                page_table_lock(AS_KERNEL, true);
-                
-                /*
-                 * PA2KA(identity) mapping for all low-memory frames.
-                 */
-                for (uintptr_t cur = 0;
-                    cur < min(config.identity_size, config.physmem_end);
-                    cur += FRAME_SIZE)
-                        page_mapping_insert(AS_KERNEL, PA2KA(cur), cur,
-                            PAGE_GLOBAL | PAGE_CACHEABLE | PAGE_EXEC | PAGE_WRITE | PAGE_READ);
-                
-                page_table_unlock(AS_KERNEL, true);
-                
-                // FIXME: register page fault extension handler
-                
-                write_satp((uintptr_t) AS_KERNEL->genarch.page_table);
-                
-                /* The boot page table is no longer needed. */
-                // FIXME: frame_mark_available(pt_frame, 1);
-        }
 }
 
@@ -80 +58 @@
 }
 
-void write_satp(uintptr_t ptl0)
-{
-        uint64_t satp = ((ptl0 >> FRAME_WIDTH) & SATP_PFN_MASK) |
-            SATP_MODE_SV48;
-        
-        asm volatile (
-                "csrw sptbr, %[satp]\n"
-                :: [satp] "r" (satp)
-        );
-}
-
 /** @}
  */