022e692a47
Set WARNS if not set for EFI boot code and fix the issues highlighted by setting it. Most components are set to WARNS level 6 with few being left at lower levels due to the amount of changes needed to fix at higher levels. Error types fixed: * Missing / invalid casts * Missing inner structs * Unused vars * Missing static for internal only funcs * Missing prototypes * Alignment changes * Use of uninitialised vars * Unknown pragma (intrinsic) * Missing types etc due to missing includes * printf formatting types Reviewed by: emaste (in part) MFC after: 2 weeks X-MFC-With: r293268 Sponsored by: Multiplay Differential Revision: https://reviews.freebsd.org/D4839
96 lines
2.7 KiB
C
96 lines
2.7 KiB
C
/*-
|
|
* Copyright (c) 2014 The FreeBSD Foundation
|
|
* All rights reserved.
|
|
*
|
|
* This software was developed by Semihalf under
|
|
* the sponsorship of the FreeBSD Foundation.
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
|
|
#include <machine/armreg.h>
|
|
|
|
#include <stand.h>
|
|
#include <efi.h>
|
|
|
|
#include "cache.h"
|
|
|
|
static unsigned int
|
|
get_dcache_line_size(void)
|
|
{
|
|
uint64_t ctr;
|
|
unsigned int dcl_size;
|
|
|
|
/* Accessible from all security levels */
|
|
ctr = READ_SPECIALREG(ctr_el0);
|
|
|
|
/*
|
|
* Relevant field [19:16] is LOG2
|
|
* of the number of words in DCache line
|
|
*/
|
|
dcl_size = CTR_DLINE_SIZE(ctr);
|
|
|
|
/* Size of word shifted by cache line size */
|
|
return (sizeof(int) << dcl_size);
|
|
}
|
|
|
|
void
|
|
cpu_flush_dcache(const void *ptr, size_t len)
|
|
{
|
|
|
|
uint64_t cl_size;
|
|
vm_offset_t addr, end;
|
|
|
|
cl_size = get_dcache_line_size();
|
|
|
|
/* Calculate end address to clean */
|
|
end = (vm_offset_t)ptr + (vm_offset_t)len;
|
|
/* Align start address to cache line */
|
|
addr = (vm_offset_t)ptr;
|
|
addr = rounddown2(addr, cl_size);
|
|
|
|
for (; addr < end; addr += cl_size)
|
|
__asm __volatile("dc civac, %0" : : "r" (addr) : "memory");
|
|
/* Full system DSB */
|
|
__asm __volatile("dsb sy" : : : "memory");
|
|
}
|
|
|
|
void
|
|
cpu_inval_icache(const void *ptr, size_t len)
|
|
{
|
|
|
|
/* NULL ptr or 0 len means all */
|
|
if (ptr == NULL || len == 0) {
|
|
__asm __volatile(
|
|
"ic ialluis \n"
|
|
"dsb ish \n"
|
|
: : : "memory");
|
|
return;
|
|
}
|
|
|
|
/* TODO: Other cache ranges if necessary */
|
|
}
|