518 lines
14 KiB
Diff
518 lines
14 KiB
Diff
From d164941306b06f408c3b2fb6a3176d1b8e2412d1 Mon Sep 17 00:00:00 2001
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From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
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Date: Mon, 29 Apr 2013 15:09:39 +0200
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Subject: [PATCH 393/482] Make PCI init in i386-qemu port more robust.
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---
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ChangeLog | 6 +-
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grub-core/Makefile.core.def | 4 +-
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grub-core/bus/usb/uhci.c | 10 +-
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grub-core/disk/ahci.c | 3 -
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grub-core/kern/i386/coreboot/init.c | 22 +--
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grub-core/kern/i386/qemu/init.c | 284 ++++++++++++++++++++++++++++++++++++
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grub-core/kern/mips/loongson/init.c | 3 +-
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grub-core/kern/vga_init.c | 35 -----
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include/grub/pci.h | 1 +
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9 files changed, 299 insertions(+), 69 deletions(-)
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create mode 100644 grub-core/kern/i386/qemu/init.c
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diff --git a/ChangeLog b/ChangeLog
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index 86effa0..ece8586 100644
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--- a/ChangeLog
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+++ b/ChangeLog
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@@ -1,4 +1,8 @@
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-2013-04-29 Vladimir Testov <vladimir.testov@rosalab.ru>
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+2013-04-29 Vladimir Serbinenko <phcoder@gmail.com>
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+
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+ Make PCI init in i386-qemu port more robust.
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+
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+2013-04-29 Vladimir Testov <vladimir.testov@rosalab.ru>
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* grub-core/gfxmenu/gui_list.c: Refresh first_shown_entry value when
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cached view is reused.
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diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
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index ebcd01d..7e19acb 100644
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--- a/grub-core/Makefile.core.def
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+++ b/grub-core/Makefile.core.def
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@@ -134,7 +134,9 @@ kernel = {
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i386 = kern/i386/dl.c;
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- i386_coreboot_multiboot_qemu = kern/i386/coreboot/init.c;
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+ i386_coreboot = kern/i386/coreboot/init.c;
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+ i386_multiboot = kern/i386/coreboot/init.c;
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+ i386_qemu = kern/i386/qemu/init.c;
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i386_coreboot_multiboot_qemu = term/i386/pc/vga_text.c;
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efi = disk/efi/efidisk.c;
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diff --git a/grub-core/bus/usb/uhci.c b/grub-core/bus/usb/uhci.c
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index c2e2e7e..0fca1a1 100644
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--- a/grub-core/bus/usb/uhci.c
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+++ b/grub-core/bus/usb/uhci.c
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@@ -236,15 +236,7 @@ grub_uhci_pci_iter (grub_pci_device_t dev,
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return 0;
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if ((base & GRUB_UHCI_IOMASK) == 0)
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- {
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-#if defined (GRUB_MACHINE_MIPS_LOONGSON) || defined (GRUB_MACHINE_QEMU)
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- static int ndevs = 0;
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- base = 0x1800 + ndevs++ * 0x100;
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- grub_pci_write (addr, base | GRUB_PCI_ADDR_SPACE_IO);
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-#else
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- return 0;
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-#endif
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- }
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+ return 0;
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grub_dprintf ("uhci", "base = %x\n", base);
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diff --git a/grub-core/disk/ahci.c b/grub-core/disk/ahci.c
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index 554fcc5..58bc190 100644
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--- a/grub-core/disk/ahci.c
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+++ b/grub-core/disk/ahci.c
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@@ -185,9 +185,6 @@ grub_ahci_pciinit (grub_pci_device_t dev,
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addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG5);
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-#ifdef GRUB_MACHINE_QEMU
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- grub_pci_write (addr, 0xf4000000);
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-#endif
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bar = grub_pci_read (addr);
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if ((bar & (GRUB_PCI_ADDR_SPACE_MASK | GRUB_PCI_ADDR_MEM_TYPE_MASK
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diff --git a/grub-core/kern/i386/coreboot/init.c b/grub-core/kern/i386/coreboot/init.c
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index bfc8f3f..7cd530d 100644
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--- a/grub-core/kern/i386/coreboot/init.c
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+++ b/grub-core/kern/i386/coreboot/init.c
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@@ -1,6 +1,6 @@
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/*
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* GRUB -- GRand Unified Bootloader
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- * Copyright (C) 2002,2003,2004,2005,2006,2007,2008,2009 Free Software Foundation, Inc.
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+ * Copyright (C) 2002,2003,2004,2005,2006,2007,2008,2009,2013 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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@@ -34,9 +34,6 @@
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#include <grub/cpu/io.h>
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#include <grub/cpu/floppy.h>
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#include <grub/cpu/tsc.h>
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-#ifdef GRUB_MACHINE_QEMU
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-#include <grub/machine/kernel.h>
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-#endif
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extern grub_uint8_t _start[];
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extern grub_uint8_t _end[];
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@@ -51,12 +48,8 @@ grub_exit (void)
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grub_cpu_idle ();
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}
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-#ifdef GRUB_MACHINE_QEMU
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-grub_addr_t grub_modbase;
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-#else
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grub_addr_t grub_modbase = GRUB_KERNEL_I386_COREBOOT_MODULES_ADDR;
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static grub_uint64_t modend;
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-#endif
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/* Helper for grub_machine_init. */
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static int
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@@ -80,10 +73,8 @@ heap_init (grub_uint64_t addr, grub_uint64_t size, grub_memory_type_t type,
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if (begin < GRUB_MEMORY_MACHINE_LOWER_SIZE)
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begin = GRUB_MEMORY_MACHINE_LOWER_SIZE;
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-#ifndef GRUB_MACHINE_QEMU
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if (modend && begin < modend)
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begin = modend;
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-#endif
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if (end <= begin)
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return 0;
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@@ -96,18 +87,11 @@ heap_init (grub_uint64_t addr, grub_uint64_t size, grub_memory_type_t type,
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void
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grub_machine_init (void)
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{
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-#ifdef GRUB_MACHINE_QEMU
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- grub_modbase = grub_core_entry_addr + (_edata - _start);
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-
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- grub_qemu_init_cirrus ();
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-#endif
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-#ifndef GRUB_MACHINE_QEMU
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modend = grub_modules_get_end ();
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-#endif
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- /* Initialize the console as early as possible. */
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+
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grub_vga_text_init ();
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-#if defined (GRUB_MACHINE_MULTIBOOT) || defined (GRUB_MACHINE_QEMU)
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+#ifdef GRUB_MACHINE_MULTIBOOT
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grub_machine_mmap_init ();
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#endif
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grub_machine_mmap_iterate (heap_init, NULL);
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diff --git a/grub-core/kern/i386/qemu/init.c b/grub-core/kern/i386/qemu/init.c
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new file mode 100644
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index 0000000..cad6c40
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--- /dev/null
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+++ b/grub-core/kern/i386/qemu/init.c
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@@ -0,0 +1,284 @@
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+/*
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+ * GRUB -- GRand Unified Bootloader
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+ * Copyright (C) 2002,2003,2004,2005,2006,2007,2008,2009,2013 Free Software Foundation, Inc.
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+ *
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+ * GRUB is free software: you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation, either version 3 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * GRUB is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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+ */
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+
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+#include <grub/kernel.h>
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+#include <grub/mm.h>
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+#include <grub/machine/time.h>
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+#include <grub/machine/memory.h>
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+#include <grub/machine/console.h>
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+#include <grub/offsets.h>
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+#include <grub/types.h>
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+#include <grub/err.h>
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+#include <grub/dl.h>
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+#include <grub/misc.h>
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+#include <grub/loader.h>
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+#include <grub/env.h>
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+#include <grub/cache.h>
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+#include <grub/time.h>
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+#include <grub/symbol.h>
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+#include <grub/cpu/io.h>
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+#include <grub/cpu/floppy.h>
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+#include <grub/cpu/tsc.h>
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+#include <grub/machine/kernel.h>
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+#include <grub/pci.h>
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+
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+extern grub_uint8_t _start[];
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+extern grub_uint8_t _end[];
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+extern grub_uint8_t _edata[];
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+
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+void __attribute__ ((noreturn))
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+grub_exit (void)
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+{
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+ /* We can't use grub_fatal() in this function. This would create an infinite
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+ loop, since grub_fatal() calls grub_abort() which in turn calls grub_exit(). */
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+ while (1)
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+ grub_cpu_idle ();
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+}
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+
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+grub_addr_t grub_modbase;
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+
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+/* Helper for grub_machine_init. */
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+static int
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+heap_init (grub_uint64_t addr, grub_uint64_t size, grub_memory_type_t type,
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+ void *data __attribute__ ((unused)))
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+{
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+ grub_uint64_t begin = addr, end = addr + size;
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+
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+#if GRUB_CPU_SIZEOF_VOID_P == 4
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+ /* Restrict ourselves to 32-bit memory space. */
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+ if (begin > GRUB_ULONG_MAX)
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+ return 0;
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+ if (end > GRUB_ULONG_MAX)
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+ end = GRUB_ULONG_MAX;
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+#endif
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+
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+ if (type != GRUB_MEMORY_AVAILABLE)
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+ return 0;
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+
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+ /* Avoid the lower memory. */
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+ if (begin < GRUB_MEMORY_MACHINE_LOWER_SIZE)
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+ begin = GRUB_MEMORY_MACHINE_LOWER_SIZE;
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+
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+ if (end <= begin)
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+ return 0;
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+
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+ grub_mm_init_region ((void *) (grub_addr_t) begin, (grub_size_t) (end - begin));
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+
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+ return 0;
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+}
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+
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+struct resource
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+{
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+ grub_pci_device_t dev;
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+ int type;
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+ grub_size_t size;
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+ int bar;
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+};
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+
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+struct iterator_ctx
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+{
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+ struct resource *resources;
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+ grub_size_t nresources;
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+};
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+
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+static int
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+count_cards (grub_pci_device_t dev __attribute__ ((unused)),
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+ grub_pci_id_t pciid __attribute__ ((unused)),
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+ void *data)
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+{
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+ int *cnt = data;
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+
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+ (*cnt)++;
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+
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+ return 0;
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+}
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+
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+static int
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+find_resources (grub_pci_device_t dev,
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+ grub_pci_id_t pciid __attribute__ ((unused)),
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+ void *data)
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+{
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+ struct iterator_ctx *ctx = data;
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+ int bar;
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+
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+ for (bar = 0; bar < 6; bar++)
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+ {
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+ grub_pci_address_t addr;
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+ grub_uint32_t ones, zeros, mask;
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+ struct resource *res;
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+ addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG0
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+ + 4 * bar);
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+ grub_pci_write (addr, 0xffffffff);
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+ grub_pci_read (addr);
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+ ones = grub_pci_read (addr);
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+ grub_pci_write (addr, 0);
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+ grub_pci_read (addr);
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+ zeros = grub_pci_read (addr);
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+ if (ones == zeros)
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+ continue;
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+ res = &ctx->resources[ctx->nresources++];
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+ if ((zeros & GRUB_PCI_ADDR_SPACE_MASK) == GRUB_PCI_ADDR_SPACE_IO)
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+ mask = GRUB_PCI_ADDR_SPACE_MASK;
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+ else
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+ mask = (GRUB_PCI_ADDR_MEM_TYPE_MASK | GRUB_PCI_ADDR_SPACE_MASK | GRUB_PCI_ADDR_MEM_PREFETCH);
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+
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+ res->type = ones & mask;
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+ res->dev = dev;
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+ res->bar = bar;
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+ res->size = (~((zeros ^ ones)) | mask) + 1;
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+ if ((zeros & (GRUB_PCI_ADDR_MEM_TYPE_MASK | GRUB_PCI_ADDR_SPACE_MASK))
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+ == (GRUB_PCI_ADDR_SPACE_MEMORY | GRUB_PCI_ADDR_MEM_TYPE_64))
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+ bar++;
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+ }
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+ return 0;
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+}
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+
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+static int
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+enable_cards (grub_pci_device_t dev,
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+ grub_pci_id_t pciid __attribute__ ((unused)),
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+ void *data __attribute__ ((unused)))
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+{
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+ grub_uint16_t cmd = 0;
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+ grub_pci_address_t addr;
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+ grub_uint32_t class;
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+ int bar;
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+
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+ for (bar = 0; bar < 6; bar++)
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+ {
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+ grub_uint32_t val;
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+ addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG0
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+ + 4 * bar);
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+ val = grub_pci_read (addr);
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+ if (!val)
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+ continue;
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+ if ((val & GRUB_PCI_ADDR_SPACE_MASK) == GRUB_PCI_ADDR_SPACE_IO)
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+ cmd |= GRUB_PCI_COMMAND_IO_ENABLED;
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+ else
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+ cmd |= GRUB_PCI_COMMAND_MEM_ENABLED;
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+ }
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+
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+ class = (grub_pci_read (addr) >> 16) & 0xffff;
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+
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+ if (class == GRUB_PCI_CLASS_SUBCLASS_VGA)
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+ cmd |= GRUB_PCI_COMMAND_IO_ENABLED
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+ | GRUB_PCI_COMMAND_MEM_ENABLED;
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+
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+ if (class == GRUB_PCI_CLASS_SUBCLASS_USB)
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+ return 0;
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+
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+ addr = grub_pci_make_address (dev, GRUB_PCI_REG_COMMAND);
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+ grub_pci_write (addr, cmd);
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+
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+ return 0;
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+}
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+
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+static void
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+grub_pci_assign_addresses (void)
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+{
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+ int ncards = 0;
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+ struct iterator_ctx ctx;
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+
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+ grub_pci_iterate (count_cards, &ncards);
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+
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+ {
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+ struct resource resources[ncards * 6];
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+ int done;
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+ unsigned i;
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+ ctx.nresources = 0;
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+ ctx.resources = resources;
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+ grub_uint32_t memptr = 0xf0000000;
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+ grub_uint16_t ioptr = 0x1000;
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+
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+ grub_pci_iterate (find_resources, &ctx);
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+ /* FIXME: do we need a better sort here? */
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+ do
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+ {
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+ done = 0;
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+ for (i = 0; i + 1 < ctx.nresources; i++)
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+ if (resources[i].size < resources[i+1].size)
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+ {
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+ struct resource t;
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+ t = resources[i];
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+ resources[i] = resources[i+1];
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+ resources[i+1] = t;
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+ done = 1;
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+ }
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+ }
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+ while (done);
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+
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+ for (i = 0; i < ctx.nresources; i++)
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+ {
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+ grub_pci_address_t addr;
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+ addr = grub_pci_make_address (resources[i].dev,
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+ GRUB_PCI_REG_ADDRESS_REG0
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+ + 4 * resources[i].bar);
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+ if ((resources[i].type & GRUB_PCI_ADDR_SPACE_MASK)
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+ == GRUB_PCI_ADDR_SPACE_IO)
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+ {
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+ grub_pci_write (addr, ioptr | resources[i].type);
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+ ioptr += resources[i].size;
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+ }
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+ else
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+ {
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+ grub_pci_write (addr, memptr | resources[i].type);
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+ memptr += resources[i].size;
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+ if ((resources[i].type & (GRUB_PCI_ADDR_MEM_TYPE_MASK
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+ | GRUB_PCI_ADDR_SPACE_MASK))
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+ == (GRUB_PCI_ADDR_SPACE_MEMORY | GRUB_PCI_ADDR_MEM_TYPE_64))
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+ {
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+ addr = grub_pci_make_address (resources[i].dev,
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+ GRUB_PCI_REG_ADDRESS_REG0
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+ + 4 * resources[i].bar + 4);
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+ grub_pci_write (addr, 0);
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+ }
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+ }
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+ }
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+ grub_pci_iterate (enable_cards, NULL);
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+ }
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+}
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+
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+void
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+grub_machine_init (void)
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+{
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+ grub_modbase = grub_core_entry_addr + (_edata - _start);
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+
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+ grub_pci_assign_addresses ();
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+
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+ grub_qemu_init_cirrus ();
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+
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+ grub_vga_text_init ();
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+
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+ grub_machine_mmap_init ();
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+ grub_machine_mmap_iterate (heap_init, NULL);
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+
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+
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+ grub_tsc_init ();
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+}
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+
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+void
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+grub_machine_get_bootlocation (char **device __attribute__ ((unused)),
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+ char **path __attribute__ ((unused)))
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+{
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+}
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+
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+void
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+grub_machine_fini (void)
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+{
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+ grub_vga_text_fini ();
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+ grub_stop_floppy ();
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+}
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diff --git a/grub-core/kern/mips/loongson/init.c b/grub-core/kern/mips/loongson/init.c
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index 1abcf1a..52cbfd4 100644
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--- a/grub-core/kern/mips/loongson/init.c
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+++ b/grub-core/kern/mips/loongson/init.c
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@@ -55,7 +55,8 @@ set_card (grub_pci_device_t dev, grub_pci_id_t pciid,
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void *data __attribute__ ((unused)))
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{
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grub_pci_address_t addr;
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- /* FIXME: autoscan for BARs and devices. */
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+ /* We could use grub_pci_assign_addresses for this but we prefer to
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+ have exactly same memory map as on pmon. */
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switch (pciid)
|
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{
|
|
case GRUB_LOONGSON_OHCI_PCIID:
|
|
diff --git a/grub-core/kern/vga_init.c b/grub-core/kern/vga_init.c
|
|
index 1119bb3..301721d 100644
|
|
--- a/grub-core/kern/vga_init.c
|
|
+++ b/grub-core/kern/vga_init.c
|
|
@@ -88,44 +88,9 @@ load_palette (void)
|
|
grub_vga_palette_write (i, colors[i].r, colors[i].g, colors[i].b);
|
|
}
|
|
|
|
-#ifndef __mips__
|
|
-/* Helper for grub_qemu_init_cirrus. */
|
|
-static int
|
|
-find_card (grub_pci_device_t dev, grub_pci_id_t pciid __attribute__ ((unused)),
|
|
- void *data __attribute__ ((unused)))
|
|
-{
|
|
- grub_pci_address_t addr;
|
|
- grub_uint32_t class;
|
|
-
|
|
- addr = grub_pci_make_address (dev, GRUB_PCI_REG_CLASS);
|
|
- class = grub_pci_read (addr);
|
|
-
|
|
- if (((class >> 16) & 0xffff) != GRUB_PCI_CLASS_SUBCLASS_VGA)
|
|
- return 0;
|
|
-
|
|
- /* FIXME: chooose addresses dynamically. */
|
|
- addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG0);
|
|
- grub_pci_write (addr, 0xf0000000 | GRUB_PCI_ADDR_MEM_PREFETCH
|
|
- | GRUB_PCI_ADDR_SPACE_MEMORY | GRUB_PCI_ADDR_MEM_TYPE_32);
|
|
- addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG1);
|
|
- grub_pci_write (addr, 0xf2000000
|
|
- | GRUB_PCI_ADDR_SPACE_MEMORY | GRUB_PCI_ADDR_MEM_TYPE_32);
|
|
-
|
|
- addr = grub_pci_make_address (dev, GRUB_PCI_REG_COMMAND);
|
|
- grub_pci_write (addr, GRUB_PCI_COMMAND_MEM_ENABLED
|
|
- | GRUB_PCI_COMMAND_IO_ENABLED);
|
|
-
|
|
- return 1;
|
|
-}
|
|
-#endif
|
|
-
|
|
void
|
|
grub_qemu_init_cirrus (void)
|
|
{
|
|
-#ifndef __mips__
|
|
- grub_pci_iterate (find_card, NULL);
|
|
-#endif
|
|
-
|
|
grub_outb (GRUB_VGA_IO_MISC_COLOR,
|
|
GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_MISC_WRITE);
|
|
|
|
diff --git a/include/grub/pci.h b/include/grub/pci.h
|
|
index e163d47..70d9a05 100644
|
|
--- a/include/grub/pci.h
|
|
+++ b/include/grub/pci.h
|
|
@@ -81,6 +81,7 @@
|
|
#define GRUB_PCI_STATUS_DEVSEL_TIMING_SHIFT 9
|
|
#define GRUB_PCI_STATUS_DEVSEL_TIMING_MASK 0x0600
|
|
#define GRUB_PCI_CLASS_SUBCLASS_VGA 0x0300
|
|
+#define GRUB_PCI_CLASS_SUBCLASS_USB 0x0c03
|
|
|
|
#ifndef ASM_FILE
|
|
|
|
--
|
|
1.8.2.1
|
|
|