Date: Mon, 29 Mar 2010 18:35:55 +0000 (UTC) From: Nathan Whitehorn <nwhitehorn@FreeBSD.org> To: src-committers@freebsd.org, svn-src-projects@freebsd.org Subject: svn commit: r205849 - projects/ppc64/sys/boot/powerpc/ps3 Message-ID: <201003291835.o2TIZtG6037618@svn.freebsd.org>
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Author: nwhitehorn Date: Mon Mar 29 18:35:55 2010 New Revision: 205849 URL: http://svn.freebsd.org/changeset/base/205849 Log: Turn on the MMU, which is required to use the frame buffer or to do much of anything. The relevant hypervisor calls are faked, for now, with replacements that set up a regular real page table, but Mambo will soon be a thing of the past. Added: projects/ppc64/sys/boot/powerpc/ps3/lv1call.h projects/ppc64/sys/boot/powerpc/ps3/lv1call_fake.c projects/ppc64/sys/boot/powerpc/ps3/ps3mmu.c Modified: projects/ppc64/sys/boot/powerpc/ps3/Makefile projects/ppc64/sys/boot/powerpc/ps3/main.c Modified: projects/ppc64/sys/boot/powerpc/ps3/Makefile ============================================================================== --- projects/ppc64/sys/boot/powerpc/ps3/Makefile Mon Mar 29 18:24:08 2010 (r205848) +++ projects/ppc64/sys/boot/powerpc/ps3/Makefile Mon Mar 29 18:35:55 2010 (r205849) @@ -9,7 +9,7 @@ BINDIR?= /boot INSTALLFLAGS= -b # Architecture-specific loader code -SRCS= start.S conf.c metadata.c vers.c main.c +SRCS= start.S conf.c metadata.c vers.c main.c lv1call_fake.c ps3mmu.c SRCS+= ucmpdi2.c LOADER_DISK_SUPPORT?= no @@ -70,7 +70,7 @@ CFLAGS+= -I. CLEANFILES+= vers.c loader.help -CFLAGS+= -ffreestanding -msoft-float +CFLAGS+= -ffreestanding -msoft-float -DAIM # load address. set in linker script RELOC?= 0x0 CFLAGS+= -DRELOC=${RELOC} Added: projects/ppc64/sys/boot/powerpc/ps3/lv1call.h ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ projects/ppc64/sys/boot/powerpc/ps3/lv1call.h Mon Mar 29 18:35:55 2010 (r205849) @@ -0,0 +1,38 @@ +/*- + * Copyright (C) 2010 Nathan Whitehorn + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 TOOLS GMBH 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 _PS3_LV1CALL_H +#define _PS3_LV1CALL_H + +int lv1_insert_htab_entry(register_t htab_id, register_t ptegidx, + uint64_t pte_hi, uint64_t pte_lo, register_t lockflags, + register_t flags, uint64_t *evict_index, uint64_t *ev_pte_hi, + uint64_t *ev_pte_lo); +int lv1_construct_virtual_address_space(int htab_size, int npgsizes, + uint64_t page_sizes, uint64_t *as_id, uint64_t *ptsize); +int lv1_select_virtual_address_space(uint64_t as); + +#endif + Added: projects/ppc64/sys/boot/powerpc/ps3/lv1call_fake.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ projects/ppc64/sys/boot/powerpc/ps3/lv1call_fake.c Mon Mar 29 18:35:55 2010 (r205849) @@ -0,0 +1,97 @@ +/*- + * Copyright (C) 2010 Nathan Whitehorn + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 TOOLS GMBH 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: head/sys/boot/powerpc/ofw/start.c 174722 2007-12-17 22:18:07Z marcel $"); + + +#include <stand.h> +#include <machine/pte.h> + +#include "bootstrap.h" +#include "lv1call.h" + +#define PTEG_COUNT 2048 +#define PTEG_MASK ((uint64_t)PTEG_COUNT - 1) + +static struct lpteg *pagetable = (struct lpteg *)0x80000; + + int mambocall(int, ...); + #define mambo_print(a) mambocall(0,a,strlen(a)); + +int +lv1_insert_htab_entry(register_t htab_id, register_t ptegidx, + uint64_t pte_hi, uint64_t pte_lo, register_t lockflags, + register_t flags, uint64_t *evict_index, uint64_t *ev_pte_hi, + uint64_t *ev_pte_lo) +{ + struct lpte *pt; + int i; + + /* + * First try primary hash. + */ + for (pt = pagetable[ptegidx].pt, i = 0; i < 8; i++, pt++) { + if (!(pt->pte_hi & LPTE_VALID)) { + pte_hi &= ~LPTE_HID; + pt->pte_lo = pte_lo; + pt->pte_hi = pte_hi; + return (0); + } + } + + /* + * Now try secondary hash. + */ + ptegidx ^= PTEG_MASK; + + for (pt = pagetable[ptegidx].pt, i = 0; i < 8; i++, pt++) { + if (!(pt->pte_hi & LPTE_VALID)) { + pte_hi |= LPTE_HID; + pt->pte_lo = pte_lo; + pt->pte_hi = pte_hi; + return (0); + } + } + + return (-1); +} + +int +lv1_construct_virtual_address_space(int htab_size, int npgsizes, + uint64_t page_sizes, uint64_t *as_id, uint64_t *ptsize) +{ + *ptsize = PTEG_COUNT * sizeof(struct lpteg); + *as_id = 0; + return (0); +} + +int +lv1_select_virtual_address_space(uint64_t as) +{ + __asm __volatile("ptesync; mtsdr1 %0; isync" :: "r"((u_int)pagetable | ffs(PTEG_MASK >> 7))); + return (0); +} + Modified: projects/ppc64/sys/boot/powerpc/ps3/main.c ============================================================================== --- projects/ppc64/sys/boot/powerpc/ps3/main.c Mon Mar 29 18:24:08 2010 (r205848) +++ projects/ppc64/sys/boot/powerpc/ps3/main.c Mon Mar 29 18:35:55 2010 (r205849) @@ -35,9 +35,12 @@ __FBSDID("$FreeBSD: head/sys/boot/powerp struct arch_switch archsw; +int ps3mmu_init(int maxmem); + int main(void) { + ps3mmu_init(128*1024*1024); mambo_print("Hello world\n"); return (0); Added: projects/ppc64/sys/boot/powerpc/ps3/ps3mmu.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ projects/ppc64/sys/boot/powerpc/ps3/ps3mmu.c Mon Mar 29 18:35:55 2010 (r205849) @@ -0,0 +1,94 @@ +/*- + * Copyright (C) 2010 Nathan Whitehorn + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 TOOLS GMBH 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: head/sys/boot/powerpc/ofw/start.c 174722 2007-12-17 22:18:07Z marcel $"); + +#include <stand.h> +#include <stdint.h> + +#define _KERNEL +#include <machine/cpufunc.h> +#include <machine/psl.h> +#include <machine/pte.h> +#include <machine/slb.h> + +#include "bootstrap.h" +#include "lv1call.h" + +#define PS3_LPAR_VAS_ID_CURRENT 0 + +register_t pteg_count, pteg_mask; + +void +ps3mmu_map(uint64_t va, uint64_t pa) +{ + struct lpte pt, expt; + struct lpteg pteg; + uint64_t idx, vsid, ptegidx; + + if (pa < 0x8000000) { /* Phys mem? */ + pt.pte_hi = LPTE_BIG; + pt.pte_lo = LPTE_M; + vsid = 0; + } else { + pt.pte_hi = 0; + pt.pte_lo = LPTE_I | LPTE_G; + vsid = 1; + } + + pt.pte_hi |= (vsid << LPTE_VSID_SHIFT) | + (((uint64_t)(va & ADDR_PIDX) >> ADDR_API_SHFT64) & LPTE_API); + pt.pte_hi |= LPTE_VALID; + + ptegidx = vsid ^ (((uint64_t)va & ADDR_PIDX) >> ADDR_PIDX_SHFT); + ptegidx &= pteg_mask; + + lv1_insert_htab_entry(PS3_LPAR_VAS_ID_CURRENT, ptegidx, pt.pte_hi, + pt.pte_lo, 0x10, 0, &idx, &expt.pte_hi, &expt.pte_lo); +} + +int +ps3mmu_init(int maxmem) +{ + uint64_t as, ptsize; + int i; + + lv1_construct_virtual_address_space(18 /* log2 256 KB */, 1, + 24ULL << 56, &as, &ptsize); + pteg_count = ptsize / sizeof(struct lpteg); + pteg_mask = pteg_count - 1; + + lv1_select_virtual_address_space(as); + for (i = 0; i < maxmem; i += 16*1024*1024) + ps3mmu_map(i,i); + __asm __volatile ("slbia; slbmte %0, %1; slbmte %2,%3" :: + "r"(0 | SLBV_L), "r"(0 | SLBE_VALID), + "r"(1 << SLBV_VSID_SHIFT), + "r"((0xf << SLBE_ESID_SHIFT) | SLBE_VALID | 1)); + + mtmsr(mfmsr() | PSL_IR | PSL_DR); +} +
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