Emulation/switch-coreboot
1
0
Fork 0
mirror of https://github.com/fail0verflow/switch-coreboot.git synced 2025-05-04 01:39:18 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions
switch-coreboot/northbridge/amd/k8/domain.c
Ronald G. Minnich 7102949d76 We're much closer. 
Added a stepping enum to k8.h. This will allow us to do things like this:
if (cpu_stepping(node) < E0)

and so on instead of is_cpu_pre_e0_in_bsp or whatever it is. 

Added and fixed Kconfig variables. 

Broke out northbridge by function, so we can see what goes with what. 

This tree still builds a working DBE62 coreboot that boots a kernel; no harm done to existing ports. 

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>



git-svn-id: svn://coreboot.org/repository/coreboot-v3@781 f3766cd6-281f-0410-b1cd-43a5c92072e9
2008-08-17 22:18:09 +00:00

416 lines
13 KiB
C
Raw Blame History

/*
* K8 northbridge
* This file is part of the coreboot project.
* Copyright (C) 2004-2005 Linux Networx
* (Written by Eric Biederman <ebiederman@lnxi.com> and Jason Schildt for Linux Networx)
* Copyright (C) 2005-7 YingHai Lu
* Copyright (C) 2005 Ollie Lo
* Copyright (C) 2005-2007 Stefan Reinauer <stepan@openbios.org>
* Copyright (C) 2008 Ronald G. Minnich <rminnich@gmail.com>
*
* This program 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; version 2 of the License.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
*/
/* This should be done by Eric
2004.12 yhlu add dual core support
2005.01 yhlu add support move apic before pci_domain in MB Config.lb
2005.02 yhlu add e0 memory hole support
2005.11 yhlu add put sb ht chain on bus 0
*/
#include <console.h>
#include <lib.h>
#include <string.h>
#include <mtrr.h>
#include <macros.h>
#include <spd.h>
#include <cpu.h>
#include <msr.h>
#include <amd/k8/k8.h>
#include <amd/k8/sysconf.h>
#include <device/pci.h>
#include <device/hypertransport_def.h>
#include <device/hypertransport.h>
#include <mc146818rtc.h>
#include <lib.h>
#include <lapic.h>
#ifdef CONFIG_PCI_64BIT_PREF_MEM
#define BRIDGE_IO_MASK (IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_PREFETCH)
#endif
#define FX_DEVS 8
extern struct device * __f0_dev[FX_DEVS];
extern struct device * __f1_dev[FX_DEVS];
void debug_fx_devs(void);
void get_fx_devs(void);
u32 f1_read_config32(unsigned int reg);
void f1_write_config32(unsigned int reg, u32 value);
unsigned int amdk8_nodeid(struct device * dev);
static void k8_ram_resource(struct device * dev, unsigned long index,
unsigned long basek, unsigned long sizek)
{
struct resource *resource;
if (!sizek) {
return;
}
resource = new_resource(dev, index);
resource->base = ((resource_t)basek) << 10;
resource->size = ((resource_t)sizek) << 10;
resource->flags = IORESOURCE_MEM | IORESOURCE_CACHEABLE | \
IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
}
static void tolm_test(void *gp, struct device *dev, struct resource *new)
{
struct resource **best_p = gp;
struct resource *best;
best = *best_p;
if (!best || (best->base > new->base)) {
best = new;
}
*best_p = best;
}
static u32 find_pci_tolm(struct bus *bus)
{
struct resource *min;
u32 tolm;
min = 0;
search_bus_resources(bus, IORESOURCE_MEM, IORESOURCE_MEM, tolm_test, &min);
tolm = 0xffffffffUL;
if (min && tolm > min->base) {
tolm = min->base;
}
return tolm;
}
static void k8_pci_domain_read_resources(struct device * dev)
{
struct resource *resource;
unsigned reg;
/* Find the already assigned resource pairs */
get_fx_devs();
for(reg = 0x80; reg <= 0xd8; reg+= 0x08) {
u32 base, limit;
base = f1_read_config32(reg);
limit = f1_read_config32(reg + 0x04);
/* Is this register allocated? */
if ((base & 3) != 0) {
unsigned nodeid, link;
struct device * dev;
nodeid = limit & 7;
link = (limit >> 4) & 3;
dev = __f0_dev[nodeid];
if (dev) {
/* Reserve the resource */
struct resource *resource;
resource = new_resource(dev, 0x100 + (reg | link));
if (resource) {
resource->flags = 1;
}
}
}
}
#if CONFIG_PCI_64BIT_PREF_MEM == 0
/* Initialize the system wide io space constraints */
resource = new_resource(dev, IOINDEX_SUBTRACTIVE(0, 0));
resource->base = 0x400;
resource->limit = 0xffffUL;
resource->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED;
/* Initialize the system wide memory resources constraints */
resource = new_resource(dev, IOINDEX_SUBTRACTIVE(1, 0));
resource->limit = 0xfcffffffffULL;
resource->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED;
#else
/* Initialize the system wide io space constraints */
resource = new_resource(dev, 0);
resource->base = 0x400;
resource->limit = 0xffffUL;
resource->flags = IORESOURCE_IO;
compute_allocate_resource(&dev->link[0], resource,
IORESOURCE_IO, IORESOURCE_IO);
/* Initialize the system wide prefetchable memory resources constraints */
resource = new_resource(dev, 1);
resource->limit = 0xfcffffffffULL;
resource->flags = IORESOURCE_MEM | IORESOURCE_PREFETCH;
compute_allocate_resource(&dev->link[0], resource,
IORESOURCE_MEM | IORESOURCE_PREFETCH,
IORESOURCE_MEM | IORESOURCE_PREFETCH);
/* Initialize the system wide memory resources constraints */
resource = new_resource(dev, 2);
resource->limit = 0xfcffffffffULL;
resource->flags = IORESOURCE_MEM;
compute_allocate_resource(&dev->link[0], resource,
IORESOURCE_MEM | IORESOURCE_PREFETCH,
IORESOURCE_MEM);
#endif
}
static void k8_pci_domain_set_resources(struct device * dev)
{
#if CONFIG_PCI_64BIT_PREF_MEM == 1
struct resource *io, *mem1, *mem2;
struct resource *resource, *last;
#endif
unsigned long mmio_basek;
u32 pci_tolm;
int i, idx;
#if CONFIG_HW_MEM_HOLE_SIZEK != 0
struct hw_mem_hole_info mem_hole;
unsigned reset_memhole = 1;
#endif
#if 0
/* Place the IO devices somewhere safe */
io = find_resource(dev, 0);
io->base = DEVICE_IO_START;
#endif
#if CONFIG_PCI_64BIT_PREF_MEM == 1
/* Now reallocate the pci resources memory with the
* highest addresses I can manage.
*/
mem1 = find_resource(dev, 1);
mem2 = find_resource(dev, 2);
#if 1
printk(BIOS_DEBUG, "base1: 0x%08Lx limit1: 0x%08Lx size: 0x%08Lx align: %d\n",
mem1->base, mem1->limit, mem1->size, mem1->align);
printk(BIOS_DEBUG, "base2: 0x%08Lx limit2: 0x%08Lx size: 0x%08Lx align: %d\n",
mem2->base, mem2->limit, mem2->size, mem2->align);
#endif
/* See if both resources have roughly the same limits */
if (((mem1->limit <= 0xffffffff) && (mem2->limit <= 0xffffffff)) ||
((mem1->limit > 0xffffffff) && (mem2->limit > 0xffffffff)))
{
/* If so place the one with the most stringent alignment first
*/
if (mem2->align > mem1->align) {
struct resource *tmp;
tmp = mem1;
mem1 = mem2;
mem2 = tmp;
}
/* Now place the memory as high up as it will go */
mem2->base = resource_max(mem2);
mem1->limit = mem2->base - 1;
mem1->base = resource_max(mem1);
}
else {
/* Place the resources as high up as they will go */
mem2->base = resource_max(mem2);
mem1->base = resource_max(mem1);
}
#if 1
printk(BIOS_DEBUG, "base1: 0x%08Lx limit1: 0x%08Lx size: 0x%08Lx align: %d\n",
mem1->base, mem1->limit, mem1->size, mem1->align);
printk(BIOS_DEBUG, "base2: 0x%08Lx limit2: 0x%08Lx size: 0x%08Lx align: %d\n",
mem2->base, mem2->limit, mem2->size, mem2->align);
#endif
last = &dev->resource[dev->resources];
for(resource = &dev->resource[0]; resource < last; resource++)
{
#if 1
resource->flags |= IORESOURCE_ASSIGNED;
resource->flags &= ~IORESOURCE_STORED;
#endif
compute_allocate_resource(&dev->link[0], resource,
BRIDGE_IO_MASK, resource->flags & BRIDGE_IO_MASK);
resource->flags |= IORESOURCE_STORED;
report_resource_stored(dev, resource, "");
}
#endif
pci_tolm = find_pci_tolm(&dev->link[0]);
#warning "FIXME handle interleaved nodes"
mmio_basek = pci_tolm >> 10;
/* Round mmio_basek to something the processor can support */
mmio_basek &= ~((1 << 6) -1);
#if 1
#warning "FIXME improve mtrr.c so we don't use up all of the mtrrs with a 64M MMIO hole"
/* Round the mmio hold to 64M */
mmio_basek &= ~((64*1024) - 1);
#endif
#if CONFIG_HW_MEM_HOLE_SIZEK != 0
/* if the hw mem hole is already set in raminit stage, here we will compare mmio_basek and hole_basek
* if mmio_basek is bigger that hole_basek and will use hole_basek as mmio_basek and we don't need to reset hole.
* otherwise We reset the hole to the mmio_basek
*/
#ifndef CONFIG_K8_REV_F_SUPPORT
if (!is_cpu_pre_e0()) {
#endif
mem_hole = get_hw_mem_hole_info();
if ((mem_hole.node_id != -1) && (mmio_basek > mem_hole.hole_startk)) { //We will use hole_basek as mmio_basek, and we don't need to reset hole anymore
mmio_basek = mem_hole.hole_startk;
reset_memhole = 0;
}
//mmio_basek = 3*1024*1024; // for debug to meet boundary
if(reset_memhole) {
if(mem_hole.node_id!=-1) { // We need to select CONFIG_HW_MEM_HOLE_SIZEK for raminit, it can not make hole_startk to some basek too....!
// We need to reset our Mem Hole, because We want more big HOLE than we already set
//Before that We need to disable mem hole at first, becase memhole could already be set on i+1 instead
disable_hoist_memory(mem_hole.hole_startk, mem_hole.node_id);
}
#if HW_MEM_HOLE_SIZE_AUTO_INC == 1
//We need to double check if the mmio_basek is valid for hole setting, if it is equal to basek, we need to decrease it some
u32 basek_pri;
for (i = 0; i < 8; i++) {
u32 base;
u32 basek;
base = f1_read_config32(0x40 + (i << 3));
if ((base & ((1<<1)|(1<<0))) != ((1<<1)|(1<<0))) {
continue;
}
basek = (base & 0xffff0000) >> 2;
if(mmio_basek == basek) {
mmio_basek -= (basek - basek_pri)>>1; // increase mem hole size to make sure it is on middle of pri node
break;
}
basek_pri = basek;
}
#endif
}
#ifndef CONFIG_K8_REV_F_SUPPORT
} // is_cpu_pre_e0
#endif
#endif
idx = 0x10;
for(i = 0; i < 8; i++) {
u32 base, limit;
unsigned basek, limitk, sizek;
base = f1_read_config32(0x40 + (i << 3));
limit = f1_read_config32(0x44 + (i << 3));
if ((base & ((1<<1)|(1<<0))) != ((1<<1)|(1<<0))) {
continue;
}
basek = (base & 0xffff0000) >> 2;
limitk = ((limit + 0x00010000) & 0xffff0000) >> 2;
sizek = limitk - basek;
/* see if we need a hole from 0xa0000 to 0xbffff */
if ((basek < ((8*64)+(8*16))) && (sizek > ((8*64)+(16*16)))) {
k8_ram_resource(dev, (idx | i), basek, ((8*64)+(8*16)) - basek);
idx += 0x10;
basek = (8*64)+(16*16);
sizek = limitk - ((8*64)+(16*16));
}
printk(BIOS_DEBUG, "node %d : mmio_basek=%08x, basek=%08x, limitk=%08x\n", i, mmio_basek, basek, limitk); //yhlu
/* See if I need to split the region to accomodate pci memory space */
if ( (basek < 4*1024*1024 ) && (limitk > mmio_basek) ) {
if (basek <= mmio_basek) {
unsigned pre_sizek;
pre_sizek = mmio_basek - basek;
if(pre_sizek>0) {
k8_ram_resource(dev, (idx | i), basek, pre_sizek);
idx += 0x10;
sizek -= pre_sizek;
}
#if CONFIG_HW_MEM_HOLE_SIZEK != 0
if(reset_memhole)
#ifndef CONFIG_K8_REV_F_SUPPORT
if(!is_cpu_pre_e0() )
#endif
sizek += hoist_memory(mmio_basek,i);
#endif
basek = mmio_basek;
}
if ((basek + sizek) <= 4*1024*1024) {
sizek = 0;
}
else {
basek = 4*1024*1024;
sizek -= (4*1024*1024 - mmio_basek);
}
}
k8_ram_resource(dev, (idx | i), basek, sizek);
idx += 0x10;
}
assign_resources(&dev->link[0]);
}
static unsigned int k8_domain_scan_bus(struct device * dev, unsigned int max)
{
unsigned reg;
int i;
/* Unmap all of the HT chains */
for(reg = 0xe0; reg <= 0xec; reg += 4) {
f1_write_config32(reg, 0);
}
max = pci_scan_bus(&dev->link[0], PCI_DEVFN(0x18, 0), 0xff, max);
/* Tune the hypertransport transaction for best performance.
* Including enabling relaxed ordering if it is safe.
*/
get_fx_devs();
for(i = 0; i < FX_DEVS; i++) {
struct device * f0_dev;
f0_dev = __f0_dev[i];
if (f0_dev && f0_dev->enabled) {
u32 httc;
httc = pci_read_config32(f0_dev, HT_TRANSACTION_CONTROL);
httc &= ~HTTC_RSP_PASS_PW;
if (!dev->link[0].disable_relaxed_ordering) {
httc |= HTTC_RSP_PASS_PW;
}
printk(BIOS_SPEW, "%s passpw: %s\n",
dev_path(dev),
(!dev->link[0].disable_relaxed_ordering)?
"enabled":"disabled");
pci_write_config32(f0_dev, HT_TRANSACTION_CONTROL, httc);
}
}
return max;
}
struct device_operations k8apic_ops = {
.id = {.type = DEVICE_ID_APIC_CLUSTER,
{.pci_domain = {.vendor = PCI_VENDOR_ID_AMD,
.device = 0x1100}}},
.constructor = default_device_constructor,
.phase3_scan = k8_domain_scan_bus,
.phase4_read_resources = k8_pci_domain_read_resources,
.phase4_set_resources = k8_pci_domain_set_resources,
.phase5_enable_resources = enable_childrens_resources,
.ops_pci = &pci_dev_ops_pci,
.ops_pci_bus = &pci_cf8_conf1,
};
Reference in a new issue View git blame Copy permalink