03479763b2
available on firmwares 3.15 and earlier. Caveats: Support for the internal SATA controller is currently missing, as is support for framebuffer resolutions other than 720x480. These deficiencies will be remedied soon. Special thanks to Peter Grehan for providing the hardware that made this port possible, and thanks to Geoff Levand of Sony Computer Entertainment for advice on the LV1 hypervisor.
121 lines
3.1 KiB
C
121 lines
3.1 KiB
C
/*-
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* Copyright (C) 2010 Nathan Whitehorn
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <stand.h>
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#include <stdint.h>
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#define _KERNEL
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#include <machine/cpufunc.h>
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#include <machine/psl.h>
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#include <machine/pte.h>
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#include <machine/slb.h>
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#include <machine/param.h>
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#include "bootstrap.h"
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#include "lv1call.h"
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#include "ps3.h"
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register_t pteg_count, pteg_mask;
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uint64_t as_id;
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uint64_t virtual_avail;
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int
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ps3mmu_map(uint64_t va, uint64_t pa)
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{
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struct lpte pt;
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int shift;
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uint64_t vsid, ptegidx;
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if (pa < 0x8000000) { /* Phys mem? */
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pt.pte_hi = LPTE_BIG;
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pt.pte_lo = LPTE_M;
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shift = 24;
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vsid = 0;
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} else {
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pt.pte_hi = 0;
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pt.pte_lo = LPTE_I | LPTE_G | LPTE_M | LPTE_NOEXEC;
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shift = ADDR_PIDX_SHFT;
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vsid = 1;
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}
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pt.pte_hi |= (vsid << LPTE_VSID_SHIFT) |
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(((uint64_t)(va & ADDR_PIDX) >> ADDR_API_SHFT64) & LPTE_API);
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pt.pte_lo |= pa;
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ptegidx = vsid ^ (((uint64_t)va & ADDR_PIDX) >> shift);
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pt.pte_hi |= LPTE_LOCKED | LPTE_VALID;
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ptegidx &= pteg_mask;
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return (lv1_insert_pte(ptegidx, &pt, LPTE_LOCKED));
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}
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void *
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ps3mmu_mapdev(uint64_t pa, size_t length)
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{
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uint64_t spa;
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void *mapstart;
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int err;
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mapstart = (void *)(uintptr_t)virtual_avail;
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for (spa = pa; spa < pa + length; spa += PAGE_SIZE) {
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err = ps3mmu_map(virtual_avail, spa);
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virtual_avail += PAGE_SIZE;
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if (err != 0)
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return (NULL);
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}
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return (mapstart);
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}
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int
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ps3mmu_init(int maxmem)
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{
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uint64_t ptsize;
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int i;
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i = lv1_setup_address_space(&as_id, &ptsize);
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pteg_count = ptsize / sizeof(struct lpteg);
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pteg_mask = pteg_count - 1;
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for (i = 0; i < maxmem; i += 16*1024*1024)
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ps3mmu_map(i,i);
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virtual_avail = 0x10000000;
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__asm __volatile ("slbia; slbmte %0, %1; slbmte %2,%3" ::
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"r"((0 << SLBV_VSID_SHIFT) | SLBV_L), "r"(0 | SLBE_VALID),
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"r"(1 << SLBV_VSID_SHIFT),
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"r"((1 << SLBE_ESID_SHIFT) | SLBE_VALID | 1));
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mtmsr(mfmsr() | PSL_IR | PSL_DR | PSL_RI | PSL_ME);
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return (0);
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}
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