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-rw-r--r--src/arch/i386/include/arch/mmio_conf.h67
-rw-r--r--src/arch/i386/include/arch/pci_ops.h4
-rw-r--r--src/arch/i386/include/arch/pciconf.h5
-rw-r--r--src/arch/i386/include/arch/romcc_io.h116
-rw-r--r--src/arch/i386/lib/Config.lb6
-rw-r--r--src/arch/i386/lib/console.c2
-rw-r--r--src/arch/i386/lib/pci_ops_conf1.c4
-rw-r--r--src/arch/i386/lib/pci_ops_mmconf.c63
8 files changed, 263 insertions, 4 deletions
diff --git a/src/arch/i386/include/arch/mmio_conf.h b/src/arch/i386/include/arch/mmio_conf.h
new file mode 100644
index 0000000000..df91cb561d
--- /dev/null
+++ b/src/arch/i386/include/arch/mmio_conf.h
@@ -0,0 +1,67 @@
+#ifndef ARCH_MMIO_H
+#define ARCH_MMIO_H 1
+
+
+//extended read, GS is already set
+
+static inline __attribute__((always_inline)) uint8_t read8x(uint32_t addr)
+{
+ uint8_t value;
+ __asm__ volatile (
+ "movb %%gs:(%1), %0\n\t"
+ :"=a"(value): "b" (addr)
+ );
+ return value;
+}
+
+static inline __attribute__((always_inline)) uint16_t read16x(uint32_t addr)
+{
+ uint16_t value;
+ __asm__ volatile (
+ "movw %%gs:(%1), %0\n\t"
+ :"=a"(value): "b" (addr)
+ );
+
+ return value;
+
+}
+
+static inline __attribute__((always_inline)) uint32_t read32x(uint32_t addr)
+{
+ uint32_t value;
+ __asm__ volatile (
+ "movl %%gs:(%1), %0\n\t"
+ :"=a"(value): "b" (addr)
+ );
+
+ return value;
+
+}
+
+static inline __attribute__((always_inline)) void write8x(uint32_t addr, uint8_t value)
+{
+ __asm__ volatile (
+ "movb %1, %%gs:(%0)\n\t"
+ :: "b" (addr), "a" (value)
+ );
+
+}
+
+static inline __attribute__((always_inline)) void write16x(uint32_t addr, uint16_t value)
+{
+ __asm__ volatile (
+ "movw %1, %%gs:(%0)\n\t"
+ :: "b" (addr), "a" (value)
+ );
+
+}
+
+static inline __attribute__((always_inline)) void write32x(uint32_t addr, uint32_t value)
+{
+ __asm__ volatile (
+ "movl %1, %%gs:(%0)\n\t"
+ :: "b" (addr), "a" (value)
+ );
+}
+
+#endif /* ARCH_MMIO_H */
diff --git a/src/arch/i386/include/arch/pci_ops.h b/src/arch/i386/include/arch/pci_ops.h
index 72307a6211..5972df1d72 100644
--- a/src/arch/i386/include/arch/pci_ops.h
+++ b/src/arch/i386/include/arch/pci_ops.h
@@ -4,6 +4,10 @@
const struct pci_bus_operations pci_cf8_conf1;
const struct pci_bus_operations pci_cf8_conf2;
+#if MMCONF_SUPPORT==1
+const struct pci_bus_operations pci_ops_mmconf;
+#endif
+
void pci_set_method(device_t dev);
#endif /* ARCH_I386_PCI_OPS_H */
diff --git a/src/arch/i386/include/arch/pciconf.h b/src/arch/i386/include/arch/pciconf.h
index 8695ee2294..5887522c8b 100644
--- a/src/arch/i386/include/arch/pciconf.h
+++ b/src/arch/i386/include/arch/pciconf.h
@@ -4,6 +4,11 @@
// inclusive of ANYTHING that uses a PCI bus.
#define PCI_CONF_REG_INDEX 0xcf8
#define PCI_CONF_REG_DATA 0xcfc
+
+#if PCI_IO_CFG_EXT == 0
#define CONFIG_ADDR(bus,devfn,where) (((bus) << 16) | ((devfn) << 8) | (where))
+#else
+#define CONFIG_ADDR(bus,devfn,where) (((bus) << 16) | ((devfn) << 8) | (where & 0xff) | ((where & 0xf00)<<16) )
+#endif
#endif
diff --git a/src/arch/i386/include/arch/romcc_io.h b/src/arch/i386/include/arch/romcc_io.h
index 6fafbd99a9..6cb6a767d9 100644
--- a/src/arch/i386/include/arch/romcc_io.h
+++ b/src/arch/i386/include/arch/romcc_io.h
@@ -34,6 +34,12 @@ static inline __attribute__((always_inline)) void write32(unsigned long addr, ui
*((volatile uint32_t *)(addr)) = value;
}
+#if MMCONF_SUPPORT
+
+#include <arch/mmio_conf.h>
+
+#endif
+
static inline int log2(int value)
{
unsigned int r = 0;
@@ -76,87 +82,193 @@ static inline int log2f(int value)
#define PNP_DEV(PORT, FUNC) (((PORT) << 8) | (FUNC))
-typedef unsigned device_t;
+typedef unsigned device_t; /* pci and pci_mmio need to have different ways to have dev */
+
+/* FIXME: We need to make the LinuxBIOS to run at 64bit mode, So when read/write memory above 4G,
+ * We don't need to set %fs, and %gs anymore
+ * Before that We need to use %gs, and leave %fs to other RAM access
+ */
static inline __attribute__((always_inline)) uint8_t pci_io_read_config8(device_t dev, unsigned where)
{
unsigned addr;
+#if PCI_IO_CFG_EXT == 0
addr = (dev>>4) | where;
+#else
+ addr = (dev>>4) | (where & 0xff) | ((where & 0xf00)<<16); //seg == 0
+#endif
outl(0x80000000 | (addr & ~3), 0xCF8);
return inb(0xCFC + (addr & 3));
}
+#if MMCONF_SUPPORT
+static inline __attribute__((always_inline)) uint8_t pci_mmio_read_config8(device_t dev, unsigned where)
+{
+ unsigned addr;
+ addr = dev | where;
+ return read8x(addr);
+}
+#endif
static inline __attribute__((always_inline)) uint8_t pci_read_config8(device_t dev, unsigned where)
{
+#if MMCONF_SUPPORT
+ return pci_mmio_read_config8(dev, where);
+#else
return pci_io_read_config8(dev, where);
+#endif
}
static inline __attribute__((always_inline)) uint16_t pci_io_read_config16(device_t dev, unsigned where)
{
unsigned addr;
+#if PCI_IO_CFG_EXT == 0
addr = (dev>>4) | where;
+#else
+ addr = (dev>>4) | (where & 0xff) | ((where & 0xf00)<<16);
+#endif
outl(0x80000000 | (addr & ~3), 0xCF8);
return inw(0xCFC + (addr & 2));
}
+#if MMCONF_SUPPORT
+static inline __attribute__((always_inline)) uint16_t pci_mmio_read_config16(device_t dev, unsigned where)
+{
+ unsigned addr;
+ addr = dev | where;
+ return read16x(addr);
+}
+#endif
+
static inline __attribute__((always_inline)) uint16_t pci_read_config16(device_t dev, unsigned where)
{
+#if MMCONF_SUPPORT
+ return pci_mmio_read_config16(dev, where);
+#else
return pci_io_read_config16(dev, where);
+#endif
}
static inline __attribute__((always_inline)) uint32_t pci_io_read_config32(device_t dev, unsigned where)
{
unsigned addr;
+#if PCI_IO_CFG_EXT == 0
addr = (dev>>4) | where;
+#else
+ addr = (dev>>4) | (where & 0xff) | ((where & 0xf00)<<16);
+#endif
outl(0x80000000 | (addr & ~3), 0xCF8);
return inl(0xCFC);
}
+#if MMCONF_SUPPORT
+static inline __attribute__((always_inline)) uint32_t pci_mmio_read_config32(device_t dev, unsigned where)
+{
+ unsigned addr;
+ addr = dev | where;
+ return read32x(addr);
+}
+#endif
+
static inline __attribute__((always_inline)) uint32_t pci_read_config32(device_t dev, unsigned where)
{
+#if MMCONF_SUPPORT
+ return pci_mmio_read_config32(dev, where);
+#else
return pci_io_read_config32(dev, where);
+#endif
}
static inline __attribute__((always_inline)) void pci_io_write_config8(device_t dev, unsigned where, uint8_t value)
{
unsigned addr;
+#if PCI_IO_CFG_EXT == 0
addr = (dev>>4) | where;
+#else
+ addr = (dev>>4) | (where & 0xff) | ((where & 0xf00)<<16);
+#endif
outl(0x80000000 | (addr & ~3), 0xCF8);
outb(value, 0xCFC + (addr & 3));
}
+#if MMCONF_SUPPORT
+static inline __attribute__((always_inline)) void pci_mmio_write_config8(device_t dev, unsigned where, uint8_t value)
+{
+ unsigned addr;
+ addr = dev | where;
+ write8x(addr, value);
+}
+#endif
+
static inline __attribute__((always_inline)) void pci_write_config8(device_t dev, unsigned where, uint8_t value)
{
+#if MMCONF_SUPPORT
+ pci_mmio_write_config8(dev, where, value);
+#else
pci_io_write_config8(dev, where, value);
+#endif
}
static inline __attribute__((always_inline)) void pci_io_write_config16(device_t dev, unsigned where, uint16_t value)
{
unsigned addr;
+#if PCI_IO_CFG_EXT == 0
addr = (dev>>4) | where;
+#else
+ addr = (dev>>4) | (where & 0xff) | ((where & 0xf00)<<16);
+#endif
outl(0x80000000 | (addr & ~3), 0xCF8);
outw(value, 0xCFC + (addr & 2));
}
+#if MMCONF_SUPPORT
+static inline __attribute__((always_inline)) void pci_mmio_write_config16(device_t dev, unsigned where, uint16_t value)
+{
+ unsigned addr;
+ addr = dev | where;
+ write16x(addr, value);
+}
+#endif
+
static inline __attribute__((always_inline)) void pci_write_config16(device_t dev, unsigned where, uint16_t value)
{
+#if MMCONF_SUPPORT
+ pci_mmio_write_config16(dev, where, value);
+#else
pci_io_write_config16(dev, where, value);
+#endif
}
static inline __attribute__((always_inline)) void pci_io_write_config32(device_t dev, unsigned where, uint32_t value)
{
unsigned addr;
+#if PCI_IO_CFG_EXT == 0
addr = (dev>>4) | where;
+#else
+ addr = (dev>>4) | (where & 0xff) | ((where & 0xf00)<<16);
+#endif
outl(0x80000000 | (addr & ~3), 0xCF8);
outl(value, 0xCFC);
}
+#if MMCONF_SUPPORT
+static inline __attribute__((always_inline)) void pci_mmio_write_config32(device_t dev, unsigned where, uint32_t value)
+{
+ unsigned addr;
+ addr = dev | where;
+ write32x(addr, value);
+}
+#endif
+
static inline __attribute__((always_inline)) void pci_write_config32(device_t dev, unsigned where, uint32_t value)
{
+#if MMCONF_SUPPORT
+ pci_mmio_write_config32(dev, where, value);
+#else
pci_io_write_config32(dev, where, value);
+#endif
}
#define PCI_DEV_INVALID (0xffffffffU)
@@ -174,7 +286,7 @@ static device_t pci_io_locate_device(unsigned pci_id, device_t dev)
static device_t pci_locate_device(unsigned pci_id, device_t dev)
{
- for(; dev <= PCI_DEV(255, 31, 7); dev += PCI_DEV(0,0,1)) {
+ for(; dev <= PCI_DEV(255|(((1<<PCI_BUS_SEGN_BITS)-1)<<8), 31, 7); dev += PCI_DEV(0,0,1)) {
unsigned int id;
id = pci_read_config32(dev, 0);
if (id == pci_id) {
diff --git a/src/arch/i386/lib/Config.lb b/src/arch/i386/lib/Config.lb
index 023c0312ff..e7d895ccc2 100644
--- a/src/arch/i386/lib/Config.lb
+++ b/src/arch/i386/lib/Config.lb
@@ -1,13 +1,17 @@
uses CONFIG_USE_INIT
+uses CONFIG_USE_PRINTK_IN_CAR
object c_start.S
object cpu.c
object pci_ops_conf1.c
object pci_ops_conf2.c
+object pci_ops_mmconf.c
object pci_ops_auto.c
object exception.c
if CONFIG_USE_INIT
- initobject printk_init.o
+ if CONFIG_USE_PRINTK_IN_CAR
+ initobject printk_init.o
+ end
end
diff --git a/src/arch/i386/lib/console.c b/src/arch/i386/lib/console.c
index a1f5d6f2a4..262a0db2f4 100644
--- a/src/arch/i386/lib/console.c
+++ b/src/arch/i386/lib/console.c
@@ -1,6 +1,6 @@
#include <console/loglevel.h>
-#if CONFIG_USE_INIT == 0
+#if CONFIG_USE_PRINTK_IN_CAR == 0
static void __console_tx_byte(unsigned char byte)
{
uart_tx_byte(byte);
diff --git a/src/arch/i386/lib/pci_ops_conf1.c b/src/arch/i386/lib/pci_ops_conf1.c
index b4181e39bc..4c4cd672e6 100644
--- a/src/arch/i386/lib/pci_ops_conf1.c
+++ b/src/arch/i386/lib/pci_ops_conf1.c
@@ -8,7 +8,11 @@
* Functions for accessing PCI configuration space with type 1 accesses
*/
+#if PCI_IO_CFG_EXT == 0
#define CONFIG_CMD(bus,devfn, where) (0x80000000 | (bus << 16) | (devfn << 8) | (where & ~3))
+#else
+#define CONFIG_CMD(bus,devfn, where) (0x80000000 | (bus << 16) | (devfn << 8) | ((where & 0xff) & ~3) | ((where & 0xf00)<<16) )
+#endif
static uint8_t pci_conf1_read_config8(struct bus *pbus, int bus, int devfn, int where)
{
diff --git a/src/arch/i386/lib/pci_ops_mmconf.c b/src/arch/i386/lib/pci_ops_mmconf.c
new file mode 100644
index 0000000000..5095c31cd7
--- /dev/null
+++ b/src/arch/i386/lib/pci_ops_mmconf.c
@@ -0,0 +1,63 @@
+#if MMCONF_SUPPORT
+
+#include <console/console.h>
+#include <arch/io.h>
+#include <arch/pciconf.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+
+
+/*
+ * Functions for accessing PCI configuration space with mmconf accesses
+ */
+
+#define PCI_MMIO_ADDR(SEGBUS, DEVFN, WHERE) ( \
+ (((SEGBUS) & 0xFFF) << 20) | \
+ (((DEVFN) & 0xFF) << 12) | \
+ ((WHERE) & 0xFFF))
+
+#include <arch/mmio_conf.h>
+
+static uint8_t pci_mmconf_read_config8(struct bus *pbus, int bus, int devfn, int where)
+{
+ return (read8x(PCI_MMIO_ADDR(bus, devfn, where)));
+}
+
+static uint16_t pci_mmconf_read_config16(struct bus *pbus, int bus, int devfn, int where)
+{
+ return (read16x(PCI_MMIO_ADDR(bus, devfn, where)));
+}
+
+static uint32_t pci_mmconf_read_config32(struct bus *pbus, int bus, int devfn, int where)
+{
+ return (read32x(PCI_MMIO_ADDR(bus, devfn, where)));
+}
+
+static void pci_mmconf_write_config8(struct bus *pbus, int bus, int devfn, int where, uint8_t value)
+{
+ write8x(PCI_MMIO_ADDR(bus, devfn, where), value);
+}
+
+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);
+}
+
+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);
+}
+
+
+const struct pci_bus_operations pci_ops_mmconf =
+{
+ .read8 = pci_mmconf_read_config8,
+ .read16 = pci_mmconf_read_config16,
+ .read32 = pci_mmconf_read_config32,
+ .write8 = pci_mmconf_write_config8,
+ .write16 = pci_mmconf_write_config16,
+ .write32 = pci_mmconf_write_config32,
+};
+
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-30 12:48:03 +0000