diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/microblaze/kernel/misc.S')
-rw-r--r-- | ANDROID_3.4.5/arch/microblaze/kernel/misc.S | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/ANDROID_3.4.5/arch/microblaze/kernel/misc.S b/ANDROID_3.4.5/arch/microblaze/kernel/misc.S deleted file mode 100644 index 1dafddeb..00000000 --- a/ANDROID_3.4.5/arch/microblaze/kernel/misc.S +++ /dev/null @@ -1,100 +0,0 @@ -/* - * Miscellaneous low-level MMU functions. - * - * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> - * Copyright (C) 2008-2009 PetaLogix - * Copyright (C) 2007 Xilinx, Inc. All rights reserved. - * - * Derived from arch/ppc/kernel/misc.S - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - */ - -#include <linux/linkage.h> -#include <linux/sys.h> -#include <asm/unistd.h> -#include <linux/errno.h> -#include <asm/mmu.h> -#include <asm/page.h> - - .text -/* - * Flush MMU TLB - * - * We avoid flushing the pinned 0, 1 and possibly 2 entries. - */ -.globl _tlbia; -.type _tlbia, @function -.align 4; -_tlbia: - lwi r12, r0, tlb_skip; - /* isync */ -_tlbia_1: - mts rtlbx, r12 - nop - mts rtlbhi, r0 /* flush: ensure V is clear */ - nop - rsubi r11, r12, MICROBLAZE_TLB_SIZE - 1 - bneid r11, _tlbia_1 /* loop for all entries */ - addik r12, r12, 1 - /* sync */ - rtsd r15, 8 - nop - .size _tlbia, . - _tlbia - -/* - * Flush MMU TLB for a particular address (in r5) - */ -.globl _tlbie; -.type _tlbie, @function -.align 4; -_tlbie: - mts rtlbsx, r5 /* look up the address in TLB */ - nop - mfs r12, rtlbx /* Retrieve index */ - nop - blti r12, _tlbie_1 /* Check if found */ - mts rtlbhi, r0 /* flush: ensure V is clear */ - nop -_tlbie_1: - rtsd r15, 8 - nop - - .size _tlbie, . - _tlbie - -/* - * Allocate TLB entry for early console - */ -.globl early_console_reg_tlb_alloc; -.type early_console_reg_tlb_alloc, @function -.align 4; -early_console_reg_tlb_alloc: - /* - * Load a TLB entry for the UART, so that microblaze_progress() can use - * the UARTs nice and early. We use a 4k real==virtual mapping. - */ - lwi r4, r0, tlb_skip - mts rtlbx, r4 /* TLB slot 63 */ - - or r4,r5,r0 - andi r4,r4,0xfffff000 - ori r4,r4,(TLB_WR|TLB_I|TLB_M|TLB_G) - - andi r5,r5,0xfffff000 - ori r5,r5,(TLB_VALID | TLB_PAGESZ(PAGESZ_4K)) - - mts rtlblo,r4 /* Load the data portion of the entry */ - nop - mts rtlbhi,r5 /* Load the tag portion of the entry */ - nop - - lwi r5, r0, tlb_skip - addik r5, r5, 1 - swi r5, r0, tlb_skip - - rtsd r15, 8 - nop - - .size early_console_reg_tlb_alloc, . - early_console_reg_tlb_alloc |