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authorJonathan Neuschäfer <j.neuschaefer@gmx.net>2018-02-16 13:36:46 +0100
committerMartin Roth <martinroth@google.com>2018-02-20 20:45:22 +0000
commitb26759d703b636d1462d31cfa38fd3b3d8c90bfe (patch)
tree07a52b6bf62867d91935456518a164e0c2759c9b /src/arch/riscv/include
parent2764919dfb78127517dcf13c6ec002f937626b02 (diff)
downloadcoreboot-b26759d703b636d1462d31cfa38fd3b3d8c90bfe.tar.xz
arch/riscv: Don't set up virtual memory
Due to changes in the RISC-V Privileged Architecture specification, Linux can now be started in physical memory and it will setup its own page tables. Thus we can delete most of virtual_memory.c. Change-Id: I4e69d15f8ee540d2f98c342bc4ec0c00fb48def0 Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-on: https://review.coreboot.org/23772 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/arch/riscv/include')
-rw-r--r--src/arch/riscv/include/vm.h25
1 files changed, 0 insertions, 25 deletions
diff --git a/src/arch/riscv/include/vm.h b/src/arch/riscv/include/vm.h
index 1a8f7ad6e0..fd0a2c947c 100644
--- a/src/arch/riscv/include/vm.h
+++ b/src/arch/riscv/include/vm.h
@@ -32,36 +32,11 @@
#include <stdint.h>
#include <arch/encoding.h>
-#define SUPERPAGE_SIZE ((uintptr_t)(RISCV_PGSIZE << RISCV_PGLEVEL_BITS))
-#define VM_CHOICE VM_SV39
-#define VA_BITS 39
-#define MEGAPAGE_SIZE (SUPERPAGE_SIZE << RISCV_PGLEVEL_BITS)
-
#define EXTRACT_FIELD(val, which) (((val) & (which)) / ((which) & ~((which)-1)))
#define INSERT_FIELD(val, which, fieldval) (((val) & ~(which)) | ((fieldval) * ((which) & ~((which)-1))))
-#define supervisor_paddr_valid(start, length) \
- ((uintptr_t)(start) >= current.first_user_vaddr + current.bias \
- && (uintptr_t)(start) + (length) < mem_size \
- && (uintptr_t)(start) + (length) >= (uintptr_t)(start))
-
-typedef uintptr_t pte_t;
-extern pte_t* root_page_table;
-
-void initVirtualMemory(void);
-
-size_t pte_ppn(pte_t pte);
-pte_t ptd_create(uintptr_t ppn);
-pte_t pte_create(uintptr_t ppn, int prot, int user);
-
-void print_page_table(void);
-
-void init_vm(uintptr_t virtMemStart, uintptr_t physMemStart,
- pte_t *pageTableStart);
void mstatus_init(void); // need to setup mstatus so we know we have virtual memory
-void flush_tlb(void);
-
#define DEFINE_MPRV_READ(name, type, insn) \
static inline type name(type *p); \