From 5c335752c4fb7e472d68b2b2731c3674a10cbd97 Mon Sep 17 00:00:00 2001 From: Kimplul Date: Tue, 26 Oct 2021 12:42:01 +0300 Subject: Identified issue with vmem implementation + Sensible mappings should help, discard what I wrote in the previous commit. Nothing works unless I get vmem up and running properly. --- arch/riscv/kernel/main.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'arch/riscv/kernel/main.c') diff --git a/arch/riscv/kernel/main.c b/arch/riscv/kernel/main.c index d4fa7b8..207b0bc 100644 --- a/arch/riscv/kernel/main.c +++ b/arch/riscv/kernel/main.c @@ -8,6 +8,8 @@ static void kernel_dbg(void *fdt) { struct dbg_info_t dbg = dbg_from_fdt(fdt); + map_vmem(ROOT_PTE, (pm_t)dbg.dbg_ptr, (vm_t)dbg.dbg_ptr, + VM_R | VM_W | VM_V, MM_KPAGE); dbg_init(dbg.dbg_ptr, dbg.dev); } @@ -17,14 +19,11 @@ static void kernel_dbg(void *fdt) static void map_fdt(struct vm_branch_t *branch, vm_t fdt_base, vm_t fdt_top) { - map_vregion(branch, fdt_base, 0, fdt_top - fdt_base, VM_R | VM_W |VM_V); + map_vregion(branch, fdt_base, fdt_base, fdt_top - fdt_base, VM_R | VM_W |VM_V); } void __main main(struct init_data_t d) { - /* feck */ - dbg_init(0x10000000, NS16550A); - dbg("test\n"); init_pmap((void *)d.pmap_base); init_mem(d.max_order, d.bits, d.page_shift); init_vmem(ROOT_PTE, d.tmp_pte); @@ -32,6 +31,7 @@ void __main main(struct init_data_t d) /* TODO: mark kernel area as used */ map_fdt(ROOT_PTE, d.fdt_base, d.fdt_top); kernel_dbg((void *)d.fdt_base); + dbg("test\n"); /* TODO: approximate order of business: * setup debugging in vmem (requires mapping fdt) * free unnecessary init -- cgit v1.3