#define SR_SD _AC(0x8000000000000000, UL) /* FS/XS dirty */
#endif
-/* SPTBR flags */
+/* SATP flags */
#if __riscv_xlen == 32
-#define SPTBR_PPN _AC(0x003FFFFF, UL)
-#define SPTBR_MODE_32 _AC(0x80000000, UL)
-#define SPTBR_MODE SPTBR_MODE_32
+#define SATP_PPN _AC(0x003FFFFF, UL)
+#define SATP_MODE_32 _AC(0x80000000, UL)
+#define SATP_MODE SATP_MODE_32
#else
-#define SPTBR_PPN _AC(0x00000FFFFFFFFFFF, UL)
-#define SPTBR_MODE_39 _AC(0x8000000000000000, UL)
-#define SPTBR_MODE SPTBR_MODE_39
+#define SATP_PPN _AC(0x00000FFFFFFFFFFF, UL)
+#define SATP_MODE_39 _AC(0x8000000000000000, UL)
+#define SATP_MODE SATP_MODE_39
#endif
/* Interrupt Enable and Interrupt Pending flags */
static inline void set_pgdir(pgd_t *pgd)
{
- csr_write(sptbr, virt_to_pfn(pgd) | SPTBR_MODE);
+ /*
+ * Use the old spbtr name instead of using the current satp
+ * name to support binutils 2.29 which doesn't know about the
+ * privileged ISA 1.10 yet.
+ */
+ csr_write(sptbr, virt_to_pfn(next->pgd) | SATP_MODE);
}
/*
sub a1, a1, a0
add ra, ra, a1
- /* Point stvec to virtual address of intruction after sptbr write */
+ /* Point stvec to virtual address of intruction after satp write */
la a0, 1f
add a0, a0, a1
csrw stvec, a0
- /* Compute sptbr for kernel page tables, but don't load it yet */
+ /* Compute satp for kernel page tables, but don't load it yet */
la a2, swapper_pg_dir
srl a2, a2, PAGE_SHIFT
- li a1, SPTBR_MODE
+ li a1, SATP_MODE
or a2, a2, a1
/*
* Do _not_ use "tsk->active_mm->pgd" here.
* We might be inside an interrupt in the middle
* of a task switch.
+ *
+ * Note: Use the old spbtr name instead of using the current
+ * satp name to support binutils 2.29 which doesn't know about
+ * the privileged ISA 1.10 yet.
*/
index = pgd_index(addr);
pgd = (pgd_t *)pfn_to_virt(csr_read(sptbr)) + index;