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Make PCI init in i386-qemu port more robust.

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2013-04-29 15:09:39 +02:00
parent dc5a311a1e
commit 96f33fed86
9 changed files with 299 additions and 69 deletions
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4
ChangeLog
View file

@ -1,3 +1,7 @@
2013-04-29 Vladimir Serbinenko <phcoder@gmail.com>
Make PCI init in i386-qemu port more robust.
2013-04-29 Vladimir Testov <vladimir.testov@rosalab.ru>
* grub-core/gfxmenu/gui_list.c: Refresh first_shown_entry value when

4
grub-core/Makefile.core.def
View file

@ -134,7 +134,9 @@ kernel = {
i386 = kern/i386/dl.c;
i386_coreboot_multiboot_qemu = kern/i386/coreboot/init.c;
i386_coreboot = kern/i386/coreboot/init.c;
i386_multiboot = kern/i386/coreboot/init.c;
i386_qemu = kern/i386/qemu/init.c;
i386_coreboot_multiboot_qemu = term/i386/pc/vga_text.c;
efi = disk/efi/efidisk.c;

8
grub-core/bus/usb/uhci.c
View file

@ -236,15 +236,7 @@ grub_uhci_pci_iter (grub_pci_device_t dev,
return 0;
if ((base & GRUB_UHCI_IOMASK) == 0)
{
#if defined (GRUB_MACHINE_MIPS_LOONGSON) || defined (GRUB_MACHINE_QEMU)
static int ndevs = 0;
base = 0x1800 + ndevs++ * 0x100;
grub_pci_write (addr, base | GRUB_PCI_ADDR_SPACE_IO);
#else
return 0;
#endif
}
grub_dprintf ("uhci", "base = %x\n", base);

3
grub-core/disk/ahci.c
View file

@ -185,9 +185,6 @@ grub_ahci_pciinit (grub_pci_device_t dev,
addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG5);
#ifdef GRUB_MACHINE_QEMU
grub_pci_write (addr, 0xf4000000);
#endif
bar = grub_pci_read (addr);
if ((bar & (GRUB_PCI_ADDR_SPACE_MASK | GRUB_PCI_ADDR_MEM_TYPE_MASK

22
grub-core/kern/i386/coreboot/init.c
View file

@ -1,6 +1,6 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2002,2003,2004,2005,2006,2007,2008,2009 Free Software Foundation, Inc.
* Copyright (C) 2002,2003,2004,2005,2006,2007,2008,2009,2013 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -34,9 +34,6 @@
#include <grub/cpu/io.h>
#include <grub/cpu/floppy.h>
#include <grub/cpu/tsc.h>
#ifdef GRUB_MACHINE_QEMU
#include <grub/machine/kernel.h>
#endif
extern grub_uint8_t _start[];
extern grub_uint8_t _end[];
@ -51,12 +48,8 @@ grub_exit (void)
grub_cpu_idle ();
}
#ifdef GRUB_MACHINE_QEMU
grub_addr_t grub_modbase;
#else
grub_addr_t grub_modbase = GRUB_KERNEL_I386_COREBOOT_MODULES_ADDR;
static grub_uint64_t modend;
#endif
/* Helper for grub_machine_init. */
static int
@ -80,10 +73,8 @@ heap_init (grub_uint64_t addr, grub_uint64_t size, grub_memory_type_t type,
if (begin < GRUB_MEMORY_MACHINE_LOWER_SIZE)
begin = GRUB_MEMORY_MACHINE_LOWER_SIZE;
#ifndef GRUB_MACHINE_QEMU
if (modend && begin < modend)
begin = modend;
#endif
if (end <= begin)
return 0;
@ -96,18 +87,11 @@ heap_init (grub_uint64_t addr, grub_uint64_t size, grub_memory_type_t type,
void
grub_machine_init (void)
{
#ifdef GRUB_MACHINE_QEMU
grub_modbase = grub_core_entry_addr + (_edata - _start);
grub_qemu_init_cirrus ();
#endif
#ifndef GRUB_MACHINE_QEMU
modend = grub_modules_get_end ();
#endif
/* Initialize the console as early as possible. */
grub_vga_text_init ();
#if defined (GRUB_MACHINE_MULTIBOOT) || defined (GRUB_MACHINE_QEMU)
#ifdef GRUB_MACHINE_MULTIBOOT
grub_machine_mmap_init ();
#endif
grub_machine_mmap_iterate (heap_init, NULL);

284
grub-core/kern/i386/qemu/init.c Normal file
View file

@ -0,0 +1,284 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2002,2003,2004,2005,2006,2007,2008,2009,2013 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/kernel.h>
#include <grub/mm.h>
#include <grub/machine/time.h>
#include <grub/machine/memory.h>
#include <grub/machine/console.h>
#include <grub/offsets.h>
#include <grub/types.h>
#include <grub/err.h>
#include <grub/dl.h>
#include <grub/misc.h>
#include <grub/loader.h>
#include <grub/env.h>
#include <grub/cache.h>
#include <grub/time.h>
#include <grub/symbol.h>
#include <grub/cpu/io.h>
#include <grub/cpu/floppy.h>
#include <grub/cpu/tsc.h>
#include <grub/machine/kernel.h>
#include <grub/pci.h>
extern grub_uint8_t _start[];
extern grub_uint8_t _end[];
extern grub_uint8_t _edata[];
void __attribute__ ((noreturn))
grub_exit (void)
{
/* We can't use grub_fatal() in this function. This would create an infinite
loop, since grub_fatal() calls grub_abort() which in turn calls grub_exit(). */
while (1)
grub_cpu_idle ();
}
grub_addr_t grub_modbase;
/* Helper for grub_machine_init. */
static int
heap_init (grub_uint64_t addr, grub_uint64_t size, grub_memory_type_t type,
void *data __attribute__ ((unused)))
{
grub_uint64_t begin = addr, end = addr + size;
#if GRUB_CPU_SIZEOF_VOID_P == 4
/* Restrict ourselves to 32-bit memory space. */
if (begin > GRUB_ULONG_MAX)
return 0;
if (end > GRUB_ULONG_MAX)
end = GRUB_ULONG_MAX;
#endif
if (type != GRUB_MEMORY_AVAILABLE)
return 0;
/* Avoid the lower memory. */
if (begin < GRUB_MEMORY_MACHINE_LOWER_SIZE)
begin = GRUB_MEMORY_MACHINE_LOWER_SIZE;
if (end <= begin)
return 0;
grub_mm_init_region ((void *) (grub_addr_t) begin, (grub_size_t) (end - begin));
return 0;
}
struct resource
{
grub_pci_device_t dev;
int type;
grub_size_t size;
int bar;
};
struct iterator_ctx
{
struct resource *resources;
grub_size_t nresources;
};
static int
count_cards (grub_pci_device_t dev __attribute__ ((unused)),
grub_pci_id_t pciid __attribute__ ((unused)),
void *data)
{
int *cnt = data;
(*cnt)++;
return 0;
}
static int
find_resources (grub_pci_device_t dev,
grub_pci_id_t pciid __attribute__ ((unused)),
void *data)
{
struct iterator_ctx *ctx = data;
int bar;
for (bar = 0; bar < 6; bar++)
{
grub_pci_address_t addr;
grub_uint32_t ones, zeros, mask;
struct resource *res;
addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG0
+ 4 * bar);
grub_pci_write (addr, 0xffffffff);
grub_pci_read (addr);
ones = grub_pci_read (addr);
grub_pci_write (addr, 0);
grub_pci_read (addr);
zeros = grub_pci_read (addr);
if (ones == zeros)
continue;
res = &ctx->resources[ctx->nresources++];
if ((zeros & GRUB_PCI_ADDR_SPACE_MASK) == GRUB_PCI_ADDR_SPACE_IO)
mask = GRUB_PCI_ADDR_SPACE_MASK;
else
mask = (GRUB_PCI_ADDR_MEM_TYPE_MASK | GRUB_PCI_ADDR_SPACE_MASK | GRUB_PCI_ADDR_MEM_PREFETCH);
res->type = ones & mask;
res->dev = dev;
res->bar = bar;
res->size = (~((zeros ^ ones)) | mask) + 1;
if ((zeros & (GRUB_PCI_ADDR_MEM_TYPE_MASK | GRUB_PCI_ADDR_SPACE_MASK))
== (GRUB_PCI_ADDR_SPACE_MEMORY | GRUB_PCI_ADDR_MEM_TYPE_64))
bar++;
}
return 0;
}
static int
enable_cards (grub_pci_device_t dev,
grub_pci_id_t pciid __attribute__ ((unused)),
void *data __attribute__ ((unused)))
{
grub_uint16_t cmd = 0;
grub_pci_address_t addr;
grub_uint32_t class;
int bar;
for (bar = 0; bar < 6; bar++)
{
grub_uint32_t val;
addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG0
+ 4 * bar);
val = grub_pci_read (addr);
if (!val)
continue;
if ((val & GRUB_PCI_ADDR_SPACE_MASK) == GRUB_PCI_ADDR_SPACE_IO)
cmd |= GRUB_PCI_COMMAND_IO_ENABLED;
else
cmd |= GRUB_PCI_COMMAND_MEM_ENABLED;
}
class = (grub_pci_read (addr) >> 16) & 0xffff;
if (class == GRUB_PCI_CLASS_SUBCLASS_VGA)
cmd |= GRUB_PCI_COMMAND_IO_ENABLED
| GRUB_PCI_COMMAND_MEM_ENABLED;
if (class == GRUB_PCI_CLASS_SUBCLASS_USB)
return 0;
addr = grub_pci_make_address (dev, GRUB_PCI_REG_COMMAND);
grub_pci_write (addr, cmd);
return 0;
}
static void
grub_pci_assign_addresses (void)
{
int ncards = 0;
struct iterator_ctx ctx;
grub_pci_iterate (count_cards, &ncards);
{
struct resource resources[ncards * 6];
int done;
unsigned i;
ctx.nresources = 0;
ctx.resources = resources;
grub_uint32_t memptr = 0xf0000000;
grub_uint16_t ioptr = 0x1000;
grub_pci_iterate (find_resources, &ctx);
/* FIXME: do we need a better sort here? */
do
{
done = 0;
for (i = 0; i + 1 < ctx.nresources; i++)
if (resources[i].size < resources[i+1].size)
{
struct resource t;
t = resources[i];
resources[i] = resources[i+1];
resources[i+1] = t;
done = 1;
}
}
while (done);
for (i = 0; i < ctx.nresources; i++)
{
grub_pci_address_t addr;
addr = grub_pci_make_address (resources[i].dev,
GRUB_PCI_REG_ADDRESS_REG0
+ 4 * resources[i].bar);
if ((resources[i].type & GRUB_PCI_ADDR_SPACE_MASK)
== GRUB_PCI_ADDR_SPACE_IO)
{
grub_pci_write (addr, ioptr | resources[i].type);
ioptr += resources[i].size;
}
else
{
grub_pci_write (addr, memptr | resources[i].type);
memptr += resources[i].size;
if ((resources[i].type & (GRUB_PCI_ADDR_MEM_TYPE_MASK
| GRUB_PCI_ADDR_SPACE_MASK))
== (GRUB_PCI_ADDR_SPACE_MEMORY | GRUB_PCI_ADDR_MEM_TYPE_64))
{
addr = grub_pci_make_address (resources[i].dev,
GRUB_PCI_REG_ADDRESS_REG0
+ 4 * resources[i].bar + 4);
grub_pci_write (addr, 0);
}
}
}
grub_pci_iterate (enable_cards, NULL);
}
}
void
grub_machine_init (void)
{
grub_modbase = grub_core_entry_addr + (_edata - _start);
grub_pci_assign_addresses ();
grub_qemu_init_cirrus ();
grub_vga_text_init ();
grub_machine_mmap_init ();
grub_machine_mmap_iterate (heap_init, NULL);
grub_tsc_init ();
}
void
grub_machine_get_bootlocation (char **device __attribute__ ((unused)),
char **path __attribute__ ((unused)))
{
}
void
grub_machine_fini (void)
{
grub_vga_text_fini ();
grub_stop_floppy ();
}

3
grub-core/kern/mips/loongson/init.c
View file

@ -55,7 +55,8 @@ set_card (grub_pci_device_t dev, grub_pci_id_t pciid,
void *data __attribute__ ((unused)))
{
grub_pci_address_t addr;
/* FIXME: autoscan for BARs and devices. */
/* We could use grub_pci_assign_addresses for this but we prefer to
have exactly same memory map as on pmon. */
switch (pciid)
{
case GRUB_LOONGSON_OHCI_PCIID:

35
grub-core/kern/vga_init.c
View file

@ -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);

1
include/grub/pci.h
View file

@ -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