Remove old code

Signed-off-by: Richard Qin <richard.qin.x@gmail.com>

1 files changed, 0 insertions, 37 deletions

diff --git a/arch/riscv/include/asm/csr.h b/arch/riscv/include/asm/csr.h
deleted file mode 100644
index 42f1eb4..0000000
--- a/arch/riscv/include/asm/csr.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/* Copyright (C) 2026 Richard Qin */
-
-#ifndef _ASM_RISCV_CSR_H
-#define _ASM_RISCV_CSR_H
-
-/*
- * RISC-V CSR (Control & Status Register) definitions used by the early
- * boot / MMU-switch path.
- *
- * LumeOS-native subset of Linux arch/riscv/include/asm/csr.h.  Only the
- * symbols head.S and mm/init.cc actually reference are defined — adding
- * the rest is straightforward when new code needs them, and skipping the
- * Linux ALTERNATIVE / vendor-extension machinery keeps the cascade flat.
- */
-
-/* SATP (Supervisor Address Translation and Protection) layout — RV64 */
-#define SATP_PPN_MASK    0x00000FFFFFFFFFFFUL   /* bits [43:0] = root PPN */
-#define SATP_ASID_SHIFT  44
-#define SATP_MODE_SHIFT  60
-
-/* SATP MODE encodings (RV64) */
-#define SATP_MODE_BARE   (0UL << SATP_MODE_SHIFT)
-#define SATP_MODE_SV39   (8UL << SATP_MODE_SHIFT)
-#define SATP_MODE_SV48   (9UL << SATP_MODE_SHIFT)
-
-/* Compose a SATP value from a page-table physical address.
- * Result: MODE | (root_ppn) where root_ppn = pgd_pa >> PAGE_SHIFT. */
-#define MAKE_SATP(mode, pgd_pa)  ((mode) | (((pgd_pa) >> 12) & SATP_PPN_MASK))
-
-/* SSTATUS bits we touch at boot — disable FP / vector at entry so that an
- * accidental FP / V instruction in early code traps cleanly rather than
- * silently using dirty state from before reset. */
-#define SR_FS_OFF        (0UL << 13)
-#define SR_VS_OFF        (0UL << 9)
-
-#endif /* _ASM_RISCV_CSR_H */