diff options
| author | Ian Moffett <ian@osmora.org> | 2024-01-11 23:59:52 -0500 |
|---|---|---|
| committer | Ian Moffett <ian@osmora.org> | 2024-01-12 00:05:13 -0500 |
| commit | 26d7c8078f85af5aaf885feb2d4c4d017ad7eec5 (patch) | |
| tree | 25c8b47d9d311f27a899978eaf853ce73a960d53 /sys/include/arch/amd64 | |
| parent | 0711c3dd65c1fb818d4574d09da440ed80235279 (diff) | |
kernel/amd64: asm: Add vmem tlb header
Add TLB header to facilitate TLB cache operations
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'sys/include/arch/amd64')
| -rw-r--r-- | sys/include/arch/amd64/asm/tlb.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/sys/include/arch/amd64/asm/tlb.h b/sys/include/arch/amd64/asm/tlb.h new file mode 100644 index 0000000..c85e0e1 --- /dev/null +++ b/sys/include/arch/amd64/asm/tlb.h @@ -0,0 +1,42 @@ +/* + * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Hyra nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _ASM_TLB_H_ +#define _ASM_TLB_H_ + +#include <sys/cdefs.h> + +#define tlb_flush(va) \ + __ASMV("invlpg (%0)" \ + : \ + : "r" (va) \ + : "memory" \ + ) + +#endif /* !_ASM_TLB_H_ */ |