[coreboot] [commit] r5796 - in trunk/src: arch/i386/include/arch arch/i386/lib cpu/amd/model_10xxx mainboard/tyan/s2912_fam10 northbridge/amd/amdfam10 northbridge/amd/amdmct/mct southbridge/nvidia/mcp55
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svn at coreboot.org
Thu Sep 9 16:54:08 CEST 2010
Author: myles
Date: Thu Sep 9 16:54:07 2010
New Revision: 5796
URL: https://tracker.coreboot.org/trac/coreboot/changeset/5796
Log:
Please find appended. This patch gets rid of the %gs magic altogether,
fixes a few alignment wrinkles and sets up and registers the MMCONF area
for AMD Fam10h CPUs (where selected by mainboard configuration). It
removes a bit of code that proved troublesome in MMCONF setups from
mcp55_early_setup_car.c, as per earlier discussion.
Signed-off-by: Arne Georg Gleditsch <arne.gleditsch at numascale.com>
Acked-by: Myles Watson <mylesgw at gmail.com>
Modified:
trunk/src/arch/i386/include/arch/mmio_conf.h
trunk/src/arch/i386/include/arch/romcc_io.h
trunk/src/arch/i386/lib/pci_ops_mmconf.c
trunk/src/cpu/amd/model_10xxx/init_cpus.c
trunk/src/mainboard/tyan/s2912_fam10/Kconfig
trunk/src/northbridge/amd/amdfam10/Kconfig
trunk/src/northbridge/amd/amdfam10/early_ht.c
trunk/src/northbridge/amd/amdfam10/northbridge.c
trunk/src/northbridge/amd/amdmct/mct/mct_d.c
trunk/src/southbridge/nvidia/mcp55/mcp55_early_setup_car.c
Modified: trunk/src/arch/i386/include/arch/mmio_conf.h
==============================================================================
--- trunk/src/arch/i386/include/arch/mmio_conf.h Thu Sep 9 16:51:17 2010 (r5795)
+++ trunk/src/arch/i386/include/arch/mmio_conf.h Thu Sep 9 16:54:07 2010 (r5796)
@@ -2,13 +2,13 @@
#define ARCH_MMIO_H 1
-//extended read, GS is already set
+// Extended read, constrain to use registers as mandated by AMD MMCONFIG mechanism.
static inline __attribute__((always_inline)) uint8_t read8x(uint32_t addr)
{
uint8_t value;
__asm__ volatile (
- "movb %%gs:(%1), %0\n\t"
+ "movb (%1), %%al\n\t"
:"=a"(value): "b" (addr)
);
return value;
@@ -18,7 +18,7 @@
{
uint16_t value;
__asm__ volatile (
- "movw %%gs:(%1), %0\n\t"
+ "movw (%1), %%ax\n\t"
:"=a"(value): "b" (addr)
);
@@ -30,7 +30,7 @@
{
uint32_t value;
__asm__ volatile (
- "movl %%gs:(%1), %0\n\t"
+ "movl (%1), %%eax\n\t"
:"=a"(value): "b" (addr)
);
@@ -41,7 +41,7 @@
static inline __attribute__((always_inline)) void write8x(uint32_t addr, uint8_t value)
{
__asm__ volatile (
- "movb %1, %%gs:(%0)\n\t"
+ "movb %%al, (%0)\n\t"
:: "b" (addr), "a" (value)
);
@@ -50,7 +50,7 @@
static inline __attribute__((always_inline)) void write16x(uint32_t addr, uint16_t value)
{
__asm__ volatile (
- "movw %1, %%gs:(%0)\n\t"
+ "movw %%ax, (%0)\n\t"
:: "b" (addr), "a" (value)
);
@@ -59,7 +59,7 @@
static inline __attribute__((always_inline)) void write32x(uint32_t addr, uint32_t value)
{
__asm__ volatile (
- "movl %1, %%gs:(%0)\n\t"
+ "movl %%eax, (%0)\n\t"
:: "b" (addr), "a" (value)
);
}
Modified: trunk/src/arch/i386/include/arch/romcc_io.h
==============================================================================
--- trunk/src/arch/i386/include/arch/romcc_io.h Thu Sep 9 16:51:17 2010 (r5795)
+++ trunk/src/arch/i386/include/arch/romcc_io.h Thu Sep 9 16:54:07 2010 (r5796)
@@ -107,7 +107,7 @@
static inline __attribute__((always_inline)) uint16_t pci_mmio_read_config16(device_t dev, unsigned where)
{
unsigned addr;
- addr = CONFIG_MMCONF_BASE_ADDRESS | dev | where;
+ addr = CONFIG_MMCONF_BASE_ADDRESS | dev | (where & ~1);
return read16x(addr);
}
#endif
@@ -138,7 +138,7 @@
static inline __attribute__((always_inline)) uint32_t pci_mmio_read_config32(device_t dev, unsigned where)
{
unsigned addr;
- addr = CONFIG_MMCONF_BASE_ADDRESS | dev | where;
+ addr = CONFIG_MMCONF_BASE_ADDRESS | dev | (where & ~3);
return read32x(addr);
}
#endif
@@ -199,7 +199,7 @@
static inline __attribute__((always_inline)) void pci_mmio_write_config16(device_t dev, unsigned where, uint16_t value)
{
unsigned addr;
- addr = CONFIG_MMCONF_BASE_ADDRESS | dev | where;
+ addr = CONFIG_MMCONF_BASE_ADDRESS | dev | (where & ~1);
write16x(addr, value);
}
#endif
@@ -230,7 +230,7 @@
static inline __attribute__((always_inline)) void pci_mmio_write_config32(device_t dev, unsigned where, uint32_t value)
{
unsigned addr;
- addr = CONFIG_MMCONF_BASE_ADDRESS | dev | where;
+ addr = CONFIG_MMCONF_BASE_ADDRESS | dev | (where & ~3);
write32x(addr, value);
}
#endif
Modified: trunk/src/arch/i386/lib/pci_ops_mmconf.c
==============================================================================
--- trunk/src/arch/i386/lib/pci_ops_mmconf.c Thu Sep 9 16:51:17 2010 (r5795)
+++ trunk/src/arch/i386/lib/pci_ops_mmconf.c Thu Sep 9 16:54:07 2010 (r5796)
@@ -27,12 +27,12 @@
static uint16_t pci_mmconf_read_config16(struct bus *pbus, int bus, int devfn, int where)
{
- return (read16x(PCI_MMIO_ADDR(bus, devfn, where)));
+ return (read16x(PCI_MMIO_ADDR(bus, devfn, where) & ~1));
}
static uint32_t pci_mmconf_read_config32(struct bus *pbus, int bus, int devfn, int where)
{
- return (read32x(PCI_MMIO_ADDR(bus, devfn, where)));
+ return (read32x(PCI_MMIO_ADDR(bus, devfn, where) & ~3));
}
static void pci_mmconf_write_config8(struct bus *pbus, int bus, int devfn, int where, uint8_t value)
@@ -42,12 +42,12 @@
static void pci_mmconf_write_config16(struct bus *pbus, int bus, int devfn, int where, uint16_t value)
{
- write8x(PCI_MMIO_ADDR(bus, devfn, where), value);
+ write16x(PCI_MMIO_ADDR(bus, devfn, where) & ~1, value);
}
static void pci_mmconf_write_config32(struct bus *pbus, int bus, int devfn, int where, uint32_t value)
{
- write8x(PCI_MMIO_ADDR(bus, devfn, where), value);
+ write32x(PCI_MMIO_ADDR(bus, devfn, where) & ~3, value);
}
Modified: trunk/src/cpu/amd/model_10xxx/init_cpus.c
==============================================================================
--- trunk/src/cpu/amd/model_10xxx/init_cpus.c Thu Sep 9 16:51:17 2010 (r5795)
+++ trunk/src/cpu/amd/model_10xxx/init_cpus.c Thu Sep 9 16:54:07 2010 (r5796)
@@ -57,32 +57,28 @@
static void set_EnableCf8ExtCfg(void) { }
#endif
-/*[39:8] */
-#define PCI_MMIO_BASE 0xfe000000
-/* because we will use gs to store hi, so need to make sure lo can start
- from 0, So PCI_MMIO_BASE & 0x00ffffff should be equal to 0*/
+
+#define _ULLx(x) x ## ULL
+#define _ULL(x) _ULLx(x)
+
+/*[63:0] */
+#define PCI_MMIO_BASE _ULL(CONFIG_MMCONF_BASE_ADDRESS)
static void set_pci_mmio_conf_reg(void)
{
#if CONFIG_MMCONF_SUPPORT
+# if PCI_MMIO_BASE > 0xffffffff
+# error CONFIG_MMCONF_BASE_ADDRESS must currently fit in 32 bits!
+# endif
msr_t msr;
msr = rdmsr(0xc0010058);
msr.lo &= ~(0xfff00000 | (0xf << 2));
- // 256 bus per segment, MMIO reg will be 4G , enable MMIO Config space
- msr.lo |= ((8 + CONFIG_PCI_BUS_SEGN_BITS) << 2) | (1 << 0);
+ // 256 buses, one segment. Total 256M address space.
+ msr.lo |= (PCI_MMIO_BASE & 0xfff00000) | (8 << 2) | (1 << 0);
msr.hi &= ~(0x0000ffff);
- msr.hi |= (PCI_MMIO_BASE >> (32 - 8));
- wrmsr(0xc0010058, msr); // MMIO Config Base Address Reg
-
- //mtrr for that range?
- // set_var_mtrr_x(7, PCI_MMIO_BASE<<8, PCI_MMIO_BASE>>(32-8), 0x00000000, 0x01, MTRR_TYPE_UNCACHEABLE);
-
- set_wrap32dis();
-
- msr.hi = (PCI_MMIO_BASE >> (32 - 8));
- msr.lo = 0;
- wrmsr(0xc0000101, msr); //GS_Base Reg
+ msr.hi |= (PCI_MMIO_BASE >> (32));
+ wrmsr(0xc0010058, msr); // MMIO Config Base Address Reg
#endif
}
Modified: trunk/src/mainboard/tyan/s2912_fam10/Kconfig
==============================================================================
--- trunk/src/mainboard/tyan/s2912_fam10/Kconfig Thu Sep 9 16:51:17 2010 (r5795)
+++ trunk/src/mainboard/tyan/s2912_fam10/Kconfig Thu Sep 9 16:54:07 2010 (r5796)
@@ -18,6 +18,7 @@
select ENABLE_APIC_EXT_ID
select AMDMCT
select TINY_BOOTBLOCK
+ select MMCONF_SUPPORT_DEFAULT
config MAINBOARD_DIR
string
Modified: trunk/src/northbridge/amd/amdfam10/Kconfig
==============================================================================
--- trunk/src/northbridge/amd/amdfam10/Kconfig Thu Sep 9 16:51:17 2010 (r5795)
+++ trunk/src/northbridge/amd/amdfam10/Kconfig Thu Sep 9 16:54:07 2010 (r5796)
@@ -23,6 +23,7 @@
select HAVE_DEBUG_SMBUS
select HYPERTRANSPORT_PLUGIN_SUPPORT
select NORTHBRIDGE_AMD_AMDFAM10_ROOT_COMPLEX
+ select MMCONF_SUPPORT
config AGP_APERTURE_SIZE
hex
@@ -54,6 +55,16 @@
default n
depends on NORTHBRIDGE_AMD_AMDFAM10
+config MMCONF_BASE_ADDRESS
+ hex
+ default 0xe0000000
+ depends on NORTHBRIDGE_AMD_AMDFAM10
+
+config MMCONF_BUS_NUMBER
+ int
+ default 256
+ depends on NORTHBRIDGE_AMD_AMDFAM10
+
config BOOTBLOCK_NORTHBRIDGE_INIT
string
default "northbridge/amd/amdfam10/bootblock.c"
Modified: trunk/src/northbridge/amd/amdfam10/early_ht.c
==============================================================================
--- trunk/src/northbridge/amd/amdfam10/early_ht.c Thu Sep 9 16:51:17 2010 (r5795)
+++ trunk/src/northbridge/amd/amdfam10/early_ht.c Thu Sep 9 16:54:07 2010 (r5796)
@@ -129,7 +129,7 @@
PCI_HT_CAP_SLAVE_CTRL0 : PCI_HT_CAP_SLAVE_CTRL1;
do {
- ctrl = pci_read_config16(devx, pos + ctrl_off);
+ ctrl = pci_io_read_config16(devx, pos + ctrl_off);
/* Is this the end of the hypertransport chain? */
if (ctrl & (1 << 6)) {
goto out;
@@ -144,8 +144,8 @@
* if its transient
*/
ctrl |= ((1 << 4) | (1 <<8)); // Link fail + Crc
- pci_write_config16(devx, pos + ctrl_off, ctrl);
- ctrl = pci_read_config16(devx, pos + ctrl_off);
+ pci_io_write_config16(devx, pos + ctrl_off, ctrl);
+ ctrl = pci_io_read_config16(devx, pos + ctrl_off);
if (ctrl & ((1 << 4) | (1 << 8))) {
// can not clear the error
break;
Modified: trunk/src/northbridge/amd/amdfam10/northbridge.c
==============================================================================
--- trunk/src/northbridge/amd/amdfam10/northbridge.c Thu Sep 9 16:51:17 2010 (r5795)
+++ trunk/src/northbridge/amd/amdfam10/northbridge.c Thu Sep 9 16:54:07 2010 (r5796)
@@ -1440,9 +1440,29 @@
{
}
+static void cpu_bus_read_resources(device_t dev)
+{
+#if CONFIG_MMCONF_SUPPORT
+ struct resource *resource = new_resource(dev, 0xc0010058);
+ resource->base = CONFIG_MMCONF_BASE_ADDRESS;
+ resource->size = CONFIG_MMCONF_BUS_NUMBER * 4096*256;
+ resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
+ IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
+#endif
+}
+
+static void cpu_bus_set_resources(device_t dev)
+{
+ struct resource *resource = find_resource(dev, 0xc0010058);
+ if (resource) {
+ report_resource_stored(dev, resource, " <mmconfig>");
+ }
+ pci_dev_set_resources(dev);
+}
+
static struct device_operations cpu_bus_ops = {
- .read_resources = cpu_bus_noop,
- .set_resources = cpu_bus_noop,
+ .read_resources = cpu_bus_read_resources,
+ .set_resources = cpu_bus_set_resources,
.enable_resources = cpu_bus_noop,
.init = cpu_bus_init,
.scan_bus = cpu_bus_scan,
Modified: trunk/src/northbridge/amd/amdmct/mct/mct_d.c
==============================================================================
--- trunk/src/northbridge/amd/amdmct/mct/mct_d.c Thu Sep 9 16:51:17 2010 (r5795)
+++ trunk/src/northbridge/amd/amdmct/mct/mct_d.c Thu Sep 9 16:54:07 2010 (r5796)
@@ -1970,7 +1970,7 @@
reg = 0x40 + (q << 2) + reg_off; /* Base[q] reg.*/
val = Get_NB32(dev, reg);
if (!(val & 3)) { /* (CSEnable|Spare==1)bank is enabled already? */
- reg = 0x60 + (q << 1) + reg_off; /*Mask[q] reg.*/
+ reg = 0x60 + ((q << 1) & 0xc) + reg_off; /*Mask[q] reg.*/
val = Get_NB32(dev, reg);
val >>= 19;
val++;
Modified: trunk/src/southbridge/nvidia/mcp55/mcp55_early_setup_car.c
==============================================================================
--- trunk/src/southbridge/nvidia/mcp55/mcp55_early_setup_car.c Thu Sep 9 16:51:17 2010 (r5795)
+++ trunk/src/southbridge/nvidia/mcp55/mcp55_early_setup_car.c Thu Sep 9 16:54:07 2010 (r5796)
@@ -267,8 +267,13 @@
RES_PCI_IO, PCI_ADDR(0, 6, 0, 0x74), 0xFFFFFFC0, 0x00000000,
RES_PCI_IO, PCI_ADDR(0, 6, 0, 0xC0), 0x00000000, 0xCB8410DE,
RES_PCI_IO, PCI_ADDR(0, 6, 0, 0xC4), 0xFFFFFFF8, 0x00000007,
-
- RES_PCI_IO, PCI_ADDR(0, 1, 0, 0x78), 0xC0FFFFFF, 0x19000000,
+ /* The following operation hangs when performed via MMCFG:
+ pci_read_config32(romcc): 00010000:0078: 20040000
+ setup_resource_map_x_offset: 10000, 78: 20040000
+ pci_write_config32(romcc): 00010000:0078: 19040000
+ (hang)
+ Response missing? */
+ /* RES_PCI_IO, PCI_ADDR(0, 1, 0, 0x78), 0xC0FFFFFF, 0x19000000, */
#if MCP55_USE_AZA == 1
RES_PCI_IO, PCI_ADDR(0, 6, 1, 0x40), 0x00000000, 0xCB8410DE,
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