[LinuxBIOS] mcp55 irq and apic patch
Uwe Hermann
uwe at hermann-uwe.de
Thu Dec 6 00:44:50 CET 2007
On Wed, Dec 05, 2007 at 10:49:52PM +0100, Uwe Hermann wrote:
> > route device irq through pci bridge instead in mptable.
> > don't enable pin0 for ioapic of io-4
Please explain in more detail why the change is done and which
consequences there are or which bugs / problems are fixed.
Also, you're changing the MCP55 code _and_ some board-specific code
for just one board? Will the other MCP55 boards need fixes, too?
If so, which fixes?
> Index: src/southbridge/nvidia/mcp55/mcp55_lpc.c
> ===================================================================
> --- src/southbridge/nvidia/mcp55/mcp55_lpc.c (Revision 2998)
> +++ src/southbridge/nvidia/mcp55/mcp55_lpc.c (Arbeitskopie)
> @@ -87,7 +87,7 @@
> /* Be careful and don't write past the end... */
> };
>
> -static void setup_ioapic(unsigned long ioapic_base)
> +static void setup_ioapic(unsigned long ioapic_base, int master)
> {
> int i;
> unsigned long value_low, value_high;
> @@ -95,7 +95,14 @@
> volatile unsigned long *l;
> struct ioapicreg *a = ioapicregvalues;
>
> - ioapicregvalues[0].value_high = lapicid()<<(56-32);
> + if (master) {
> + ioapicregvalues[0].value_high = lapicid()<<(56-32);
> + ioapicregvalues[0].value_low = ENABLED | TRIGGER_EDGE | POLARITY_HIGH | PHYSICAL_DEST | ExtINT;
> + }
> + else {
> + ioapicregvalues[0].value_high = NONE;
> + ioapicregvalues[0].value_low = DISABLED;
> + }
>
> l = (unsigned long *) ioapic_base;
>
> @@ -121,14 +128,14 @@
>
> #define MAINBOARD_POWER_OFF 0
> #define MAINBOARD_POWER_ON 1
> -#define SLOW_CPU_OFF 0
> -#define SLOW_CPU__ON 1
> +#define SLOW_CPU_OFF 0
> +#define SLOW_CPU__ON 1
>
> #ifndef MAINBOARD_POWER_ON_AFTER_POWER_FAIL
> -#define MAINBOARD_POWER_ON_AFTER_POWER_FAIL MAINBOARD_POWER_ON
> +#define MAINBOARD_POWER_ON_AFTER_POWER_FAIL MAINBOARD_POWER_ON
> #endif
>
> -static void lpc_common_init(device_t dev)
> +static void lpc_common_init(device_t dev, int master)
> {
> uint8_t byte;
> uint32_t dword;
> @@ -139,13 +146,12 @@
> pci_write_config8(dev, 0x74, byte);
> dword = pci_read_config32(dev, PCI_BASE_ADDRESS_1); // 0x14
>
> - setup_ioapic(dword);
> -
> + setup_ioapic(dword, master);
> }
>
> static void lpc_slave_init(device_t dev)
> {
> - lpc_common_init(dev);
> + lpc_common_init(dev, 0);
Maybe
#define FOO_MASTER 1
#define FOO_SLAVE 0
at the top of the file, with some good name for 'FOO', to
remove the magic constants from the function calls and to
make it clear what's meant.
> }
>
> #if 0
> @@ -166,13 +172,12 @@
> int on;
> int nmi_option;
>
> - lpc_common_init(dev);
> + lpc_common_init(dev, 1);
>
> #if 0
> /* posted memory write enable */
> byte = pci_read_config8(dev, 0x46);
> pci_write_config8(dev, 0x46, byte | (1<<0));
> -
> #endif
> /* power after power fail */
>
> @@ -198,7 +203,7 @@
> dword = inl(pm10_bar + 0x10);
> on = 8-on;
> printk_debug("Throttling CPU %2d.%1.1d percent.\n",
> - (on*12)+(on>>1),(on&1)*5);
> + (on*12)+(on>>1),(on&1)*5);
> }
>
> #if 0
> Index: src/mainboard/nvidia/l1_2pvv/mptable.c
> ===================================================================
> --- src/mainboard/nvidia/l1_2pvv/mptable.c (Revision 2998)
> +++ src/mainboard/nvidia/l1_2pvv/mptable.c (Arbeitskopie)
> @@ -39,6 +39,7 @@
> unsigned sbdn;
>
> int i,j;
> + unsigned char apicpin[4];
This should be u8 I think (you need stdint.h).
> mc = (void *)(((char *)v) + SMP_FLOATING_TABLE_LEN);
> memset(mc, 0, sizeof(*mc));
> @@ -65,8 +66,8 @@
>
> /*Bus: Bus ID Type*/
> /* define bus and isa numbers */
> - for(j= 0; j < 256 ; j++) {
> - if(m->bus_type[j])
> + for (j = 0; j < 256 ; j++) {
> + if (m->bus_type[j])
> smp_write_bus(mc, j, "PCI ");
> }
> smp_write_bus(mc, m->bus_isa, "ISA ");
> @@ -77,38 +78,43 @@
> struct resource *res;
> uint32_t dword;
>
> - dev = dev_find_slot(m->bus_mcp55[0], PCI_DEVFN(sbdn+ 0x1,0));
> + dev = dev_find_slot(m->bus_mcp55, PCI_DEVFN(sbdn+ 0x1,0));
Why is this no longer an array? Only on this board or for all MCP55
boards?
> if (dev) {
> res = find_resource(dev, PCI_BASE_ADDRESS_1);
> - if (res) {
> + if (res)
> smp_write_ioapic(mc, m->apicid_mcp55, 0x11, res->base);
> - }
>
> + /* Initialize interrupt mapping*/
> + dword = pci_read_config32(dev, 0x74);
> + dword &= ~(1<<15);
> + dword |= 1<<2;
> + pci_write_config32(dev, 0x74, dword);
> +
> dword = 0x43c6c643;
> - pci_write_config32(dev, 0x7c, dword);
> + pci_write_config32(dev, 0x7c, dword);
>
> dword = 0x81001a00;
> pci_write_config32(dev, 0x80, dword);
>
> - dword = 0xd00012d2;
> + dword = 0xd00012d2;
> pci_write_config32(dev, 0x84, dword);
>
> }
>
> - if(m->bus_mcp55b[0]) {
> - dev = dev_find_slot(m->bus_mcp55b[0], PCI_DEVFN(m->sbdnb + 0x1,0));
> + if (m->bus_mcp55b) {
> + dev = dev_find_slot(m->bus_mcp55b, PCI_DEVFN(m->sbdnb + 0x1,0));
> if (dev) {
> res = find_resource(dev, PCI_BASE_ADDRESS_1);
> - if (res) {
> + if (res)
> smp_write_ioapic(mc, m->apicid_mcp55b, 0x11, res->base);
> - }
> +
> dword = 0x43c60000;
> - pci_write_config32(dev, 0x7c, dword);
> + pci_write_config32(dev, 0x7c, dword);
>
> dword = 0x81000000;
> pci_write_config32(dev, 0x80, dword);
>
> - dword = 0xd00002d0;
> + dword = 0xd00002d0;
> pci_write_config32(dev, 0x84, dword);
>
> }
> @@ -116,8 +122,8 @@
> }
>
> }
> -
> - /*I/O Ints: Type Polarity Trigger Bus ID IRQ APIC ID PIN# */
> +
> + /*I/O Ints: Type Polarity Trigger Bus ID IRQ APIC ID PIN# */
> smp_write_intsrc(mc, mp_ExtINT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, m->bus_isa, 0x0, m->apicid_mcp55, 0x0);
> smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, m->bus_isa, 0x1, m->apicid_mcp55, 0x1);
> smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, m->bus_isa, 0x0, m->apicid_mcp55, 0x2);
> @@ -131,63 +137,65 @@
> smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, m->bus_isa, 0xe, m->apicid_mcp55, 0xe);
> smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, m->bus_isa, 0xf, m->apicid_mcp55, 0xf);
>
> - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55[0], ((sbdn+1)<<2)|1, m->apicid_mcp55, 0xa);
> + smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55, ((sbdn+1)<<2)|1, m->apicid_mcp55, 0xa); // 10
Why are the numbers in hex (0xa) with a comment for decimal (10)?
Does it make a deeper sense to use the hex values and not use the
decimal values directly?
> - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55[0], ((sbdn+2)<<2)|0, m->apicid_mcp55, 0x16); // 22
> + smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55, ((sbdn+2)<<2)|0, m->apicid_mcp55, 0x16); // 22
>
> - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55[0], ((sbdn+2)<<2)|1, m->apicid_mcp55, 0x17); // 23
> + smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55, ((sbdn+2)<<2)|1, m->apicid_mcp55, 0x17); // 23
>
> - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55[0], ((sbdn+6)<<2)|1, m->apicid_mcp55, 0x17); // 23
> + smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55, ((sbdn+6)<<2)|1, m->apicid_mcp55, 0x17); // 23
>
> - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55[0], ((sbdn+5)<<2)|0, m->apicid_mcp55, 0x14); // 20
> - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55[0], ((sbdn+5)<<2)|1, m->apicid_mcp55, 0x17); // 23
> - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55[0], ((sbdn+5)<<2)|2, m->apicid_mcp55, 0x15); // 21
> + smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55, ((sbdn+5)<<2)|0, m->apicid_mcp55, 0x14); // 20
> + smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55, ((sbdn+5)<<2)|1, m->apicid_mcp55, 0x17); // 23
> + smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55, ((sbdn+5)<<2)|2, m->apicid_mcp55, 0x15); // 21
>
> - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55[0], ((sbdn+8)<<2)|0, m->apicid_mcp55, 0x16); // 22
> - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55[0], ((sbdn+9)<<2)|0, m->apicid_mcp55, 0x15); // 21
> + smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55, ((sbdn+8)<<2)|0, m->apicid_mcp55, 0x16); // 22
> + smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55, ((sbdn+9)<<2)|0, m->apicid_mcp55, 0x15); // 21
>
> - for(j=7; j>=2; j--) {
> - if(!m->bus_mcp55[j]) continue;
> - for(i=0;i<4;i++) {
> - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55[j], (0x00<<2)|i, m->apicid_mcp55, 0x10 + (2+j+i+4-sbdn%4)%4);
> - }
> +//Slot PCIE
> + for (j = 2; j < 8; j++) {
> + device_t dev;
> + dev = dev_find_slot(m->bus_mcp55, PCI_DEVFN(sbdn + 0x0a + j - 2 , 0));
> + if (!dev || !dev->enabled)
> + continue;
> + for (i = 0; i < 4; i++)
> + apicpin[i] = 0x10 + (2+j+i+4-sbdn%4)%4;
> + smp_write_intsrc_pci_bridge(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, dev, m->apicid_mcp55, apicpin);
> }
>
> - for(j=0; j<2; j++)
> - for(i=0;i<4;i++) {
> - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55[1], ((0x06+j)<<2)|i, m->apicid_mcp55, 0x10 + (2+i+j)%4);
> - }
> +//Slot PCI 32
> + {
> + device_t dev;
> + dev = dev_find_slot(m->bus_mcp55, PCI_DEVFN(sbdn + 6 , 0));
> + if (dev && dev->enabled) {
> + for (i = 0; i < 4; i++)
> + apicpin[i] = 0x10 + (2+i)%4;
> + smp_write_intsrc_pci_bridge(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, dev, m->apicid_mcp55, apicpin);
> + }
> + }
>
> - if(m->bus_mcp55b[0]) {
> - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55b[0], ((m->sbdnb+5)<<2)|0, m->apicid_mcp55b, 0x14); // 20
> - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55b[0], ((m->sbdnb+5)<<2)|1, m->apicid_mcp55b, 0x17); // 23
> - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55b[0], ((m->sbdnb+5)<<2)|2, m->apicid_mcp55b, 0x15); // 21
> + if (m->bus_mcp55b) {
> + smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55b, ((m->sbdnb+5)<<2)|0, m->apicid_mcp55b, 0x14); // 20
> + smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55b, ((m->sbdnb+5)<<2)|1, m->apicid_mcp55b, 0x17); // 23
> + smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55b, ((m->sbdnb+5)<<2)|2, m->apicid_mcp55b, 0x15); // 21
>
> - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55b[0], ((m->sbdnb+8)<<2)|0, m->apicid_mcp55b, 0x16); // 22
> - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55b[0], ((m->sbdnb+9)<<2)|0, m->apicid_mcp55b, 0x15); // 21
> + smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55b, ((m->sbdnb+8)<<2)|0, m->apicid_mcp55b, 0x16); // 22
> + smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55b, ((m->sbdnb+9)<<2)|0, m->apicid_mcp55b, 0x15); // 21
>
>
> - for(j=7; j>=2; j--) {
> - if(!m->bus_mcp55b[j]) continue;
> - for(i=0;i<4;i++) {
> - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_mcp55b[j], (0x00<<2)|i, m->apicid_mcp55b, 0x10 + (2+j+i+4-m->sbdnb%4)%4);
> + //Slot PCIE
> + for (j = 2; j < 8; j++) {
> + device_t dev;
> + dev = dev_find_slot(m->bus_mcp55b, PCI_DEVFN(m->sbdnb + 0x0a + j - 2 , 0));
> + if (!dev || !dev->enabled)
> + continue;
> + for (i = 0; i < 4; i++) {
> + apicpin[i] = 0x10 + (2+j+i+4-m->sbdnb%4)%4;
> }
> + smp_write_intsrc_pci_bridge(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, dev, m->apicid_mcp55b, apicpin);
> }
> - }
> -#if 1
>
> - if(m->bus_pcix[0]) {
> -
> - for(i=0;i<2;i++) {
> - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_pcix[2], (4<<2)|i, m->apicid_mcp55, 0x10 + (0+i+4-sbdn%4)%4); //16, 17
> - }
> -
> -
> - for(i=0;i<4;i++) {
> - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, m->bus_pcix[1], (4<<2)|i, m->apicid_mcp55, 0x10 + (2+i+4-sbdn%4)%4); // 18, 19, 16, 17
> - }
> }
> -#endif
>
> /*Local Ints: Type Polarity Trigger Bus ID IRQ APIC ID PIN#*/
> smp_write_intsrc(mc, mp_ExtINT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, m->bus_isa, 0x0, MP_APIC_ALL, 0x0);
> Index: src/mainboard/nvidia/l1_2pvv/irq_tables.c
> ===================================================================
> --- src/mainboard/nvidia/l1_2pvv/irq_tables.c (Revision 2998)
> +++ src/mainboard/nvidia/l1_2pvv/irq_tables.c (Arbeitskopie)
> @@ -78,15 +78,15 @@
>
> pirq = (void *)(addr);
> v = (uint8_t *)(addr);
> -
> +
> pirq->signature = PIRQ_SIGNATURE;
> pirq->version = PIRQ_VERSION;
> -
> - pirq->rtr_bus = m->bus_mcp55[0];
> +
> + pirq->rtr_bus = m->bus_mcp55;
> pirq->rtr_devfn = ((sbdn+6)<<3)|0;
>
> pirq->exclusive_irqs = 0;
> -
> +
> pirq->rtr_vendor = 0x10de;
> pirq->rtr_device = 0x0370;
>
> @@ -97,10 +97,10 @@
> pirq_info = (void *) ( &pirq->checksum + 1);
> slot_num = 0;
> //pci bridge
> - write_pirq_info(pirq_info, m->bus_mcp55[0], ((sbdn+6)<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
> + write_pirq_info(pirq_info, m->bus_mcp55, ((sbdn+6)<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
> pirq_info++; slot_num++;
> -
> - for(i=1; i< sysconf.hc_possible_num; i++) {
> +
> + for (i = 1; i < sysconf.hc_possible_num; i++) {
> if(!(sysconf.pci1234[i] & 0x1) ) continue;
> unsigned busn = (sysconf.pci1234[i] >> 16) & 0xff;
> unsigned devn = sysconf.hcdn[i] & 0xff;
> @@ -109,10 +109,10 @@
> pirq_info++; slot_num++;
> }
>
> - pirq->size = 32 + 16 * slot_num;
> + pirq->size = 32 + 16 * slot_num;
>
> for (i = 0; i < pirq->size; i++)
> - sum += v[i];
> + sum += v[i];
>
> sum = pirq->checksum - sum;
>
> Index: src/mainboard/nvidia/l1_2pvv/mb_sysconf.h
> ===================================================================
> --- src/mainboard/nvidia/l1_2pvv/mb_sysconf.h (Revision 2998)
> +++ src/mainboard/nvidia/l1_2pvv/mb_sysconf.h (Arbeitskopie)
> @@ -24,12 +24,11 @@
>
> struct mb_sysconf_t {
> unsigned char bus_isa;
> - unsigned char bus_mcp55[8]; //1
> - unsigned char bus_mcp55b[8];//a
> + unsigned char bus_mcp55;
> + unsigned char bus_mcp55b;
> unsigned apicid_mcp55;
> unsigned apicid_mcp55b;
> unsigned bus_type[256];
> - unsigned char bus_pcix[3]; // under bus_mcp55_2
>
> unsigned sbdnb;
>
> Index: src/mainboard/nvidia/l1_2pvv/get_bus_conf.c
> ===================================================================
> --- src/mainboard/nvidia/l1_2pvv/get_bus_conf.c (Revision 2998)
> +++ src/mainboard/nvidia/l1_2pvv/get_bus_conf.c (Arbeitskopie)
> @@ -35,7 +35,7 @@
> // Global variables for MB layouts and these will be shared by irqtable mptable and acpi_tables
> struct mb_sysconf_t mb_sysconf;
>
> -unsigned pci1234x[] =
> +unsigned pci1234x[] =
> { //Here you only need to set value in pci1234 for HT-IO that could be installed or not
> //You may need to preset pci1234 for HTIO board, please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
> 0x0000ff0,
> @@ -47,7 +47,7 @@
> // 0x0000ff0,
> // 0x0000ff0
> };
> -unsigned hcdnx[] =
> +unsigned hcdnx[] =
> { //HT Chain device num, actually it is unit id base of every ht device in chain, assume every chain only have 4 ht device at most
> 0x20202020,
> 0x20202020,
> @@ -98,18 +98,19 @@
> device_t dev;
> int i, j;
>
> - if(get_bus_conf_done==1) return; //do it only once
> + if (get_bus_conf_done)
> + return; //do it only once
>
> get_bus_conf_done = 1;
>
> sysconf.mb = &mb_sysconf;
> -
> +
> m = sysconf.mb;
> memset(m, 0, sizeof(struct mb_sysconf_t));
>
> sysconf.hc_possible_num = sizeof(pci1234x)/sizeof(pci1234x[0]);
>
> - for(i=0;i<sysconf.hc_possible_num; i++) {
> + for (i = 0; i < sysconf.hc_possible_num; i++) {
> sysconf.pci1234[i] = pci1234x[i];
> sysconf.hcdn[i] = hcdnx[i];
> }
> @@ -121,77 +122,41 @@
> m->sbdnb = (sysconf.hcdn[1] & 0xff); // first byte of second chain
>
> m->bus_type[0] = 1; //pci
> -
> - m->bus_mcp55[0] = (sysconf.pci1234[0] >> 16) & 0xff;
>
> - /* MCP55 */
> - dev = dev_find_slot(m->bus_mcp55[0], PCI_DEVFN(sysconf.sbdn + 0x06,0));
> - if (dev) {
> - m->bus_mcp55[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
> - }
> - else {
> - printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sysconf.sbdn + 0x06);
> - }
> + m->bus_mcp55 = (sysconf.pci1234[0] >> 16) & 0xff;
>
> - for(i=2; i<8;i++) {
> - dev = dev_find_slot(m->bus_mcp55[0], PCI_DEVFN(sysconf.sbdn + 0x0a + i - 2 , 0));
> - if (dev) {
> - m->bus_mcp55[i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
> - }
> - else {
> - printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", m->bus_mcp55[0], sysconf.sbdn + 0x0a + i - 2 );
> - }
> - }
> + for (i = 0; i < sysconf.hc_possible_num; i++) {
> + unsigned busn_min, busn_max;
>
> - if(m->bus_mcp55[2]) {
> - for(i=0;i<2; i++) {
> - dev = dev_find_slot(m->bus_mcp55[2], PCI_DEVFN(0, i));
> - if(dev) {
> - m->bus_pcix[0] = m->bus_mcp55[2];
> - m->bus_pcix[i+1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
> - }
> - }
> - }
> -
> - for(i=0; i< sysconf.hc_possible_num; i++) {
> - if(!(sysconf.pci1234[i] & 0x1) ) continue;
> + if (!(sysconf.pci1234[i] & 0x1))
> + continue;
>
> - unsigned busn = (sysconf.pci1234[i] >> 16) & 0xff;
> - unsigned busn_max = (sysconf.pci1234[i] >> 24) & 0xff;
> - for (j = busn; j <= busn_max; j++)
> + busn_min = (sysconf.pci1234[i] >> 16) & 0xff;
> + busn_max = (sysconf.pci1234[i] >> 24) & 0xff;
> + for (j = busn_min; j <= busn_max; j++)
> m->bus_type[j] = 1;
> - if(m->bus_isa <= busn_max)
> + if(m->bus_isa <= busn_max)
> m->bus_isa = busn_max + 1;
> - printk_debug("i=%d bus range: [%x, %x] bus_isa=%x\n",i, busn, busn_max, m->bus_isa);
> + printk_debug("i=%d bus range: [%x, %x] bus_isa=%x\n",i, busn_min, busn_max, m->bus_isa);
> }
>
> /* MCP55b */
> - for(i=1; i< sysconf.hc_possible_num; i++) {
> - if (!(sysconf.pci1234[i] & 0x0f) ) continue;
> + for (i = 1; i < sysconf.hc_possible_num; i++) {
> + if (!(sysconf.pci1234[i] & 0x0f))
> + continue;
> // check hcid type here
> sysconf.hcid[i] = get_hcid(i);
> - if (!sysconf.hcid[i]) continue; //unknown co processor
> + if (!sysconf.hcid[i])
> + continue; //unknown co processor
>
> - m->bus_mcp55b[0] = (sysconf.pci1234[1]>>16) & 0xff;
> - m->bus_mcp55b[1] = m->bus_mcp55b[0]+1; //fake pci
> -
> - for(i=2; i<8;i++) {
> - dev = dev_find_slot(m->bus_mcp55b[0], PCI_DEVFN(m->sbdnb + 0x0a + i - 2 , 0));
> - if (dev) {
> - m->bus_mcp55b[i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
> - }
> - else {
> - printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", m->bus_mcp55b[0], m->sbdnb + 0x0a + i - 2 );
> - }
> - }
> + m->bus_mcp55b = (sysconf.pci1234[1]>>16) & 0xff;
> }
>
> -
> /*I/O APICs: APIC ID Version State Address*/
> #if CONFIG_LOGICAL_CPUS==1
> apicid_base = get_apicid_base(2);
> -#else
> - apicid_base = CONFIG_MAX_PHYSICAL_CPUS;
> +#else
> + apicid_base = CONFIG_MAX_PHYSICAL_CPUS;
> #endif
> m->apicid_mcp55 = apicid_base+0;
> m->apicid_mcp55b = apicid_base+1;
> Index: src/arch/i386/smp/mpspec.c
> ===================================================================
> --- src/arch/i386/smp/mpspec.c (Revision 2998)
> +++ src/arch/i386/smp/mpspec.c (Arbeitskopie)
> @@ -1,6 +1,7 @@
> #include <console/console.h>
> #include <device/device.h>
> #include <device/path.h>
> +#include <device/pci_ids.h>
> #include <cpu/cpu.h>
> #include <arch/smp/mpspec.h>
> #include <string.h>
> @@ -26,8 +27,7 @@
> void *v;
>
> /* 16 byte align the table address */
> - addr += 15;
> - addr &= ~15;
> + addr = (addr + 0xf) & (~0xf);
Maybe a small function in lib/ would be good here.
Something like
x = align_foo(x, 16);
is certainly more readable than open-coding the function.
> v = (void *)addr;
>
> mf = v;
> @@ -52,8 +52,8 @@
> {
> struct intel_mp_floating *mf;
> void *v;
> -
> - v = (void *)addr;
> +
> + v = (void *)addr;
> mf = v;
> mf->mpf_signature[0] = '_';
> mf->mpf_signature[1] = 'M';
> @@ -204,7 +204,59 @@
> #endif
> }
>
> +void smp_write_intsrc_pci_bridge(struct mp_config_table *mc,
> + unsigned char irqtype, unsigned short irqflag,
> + struct device *dev,
> + unsigned char dstapic, unsigned char *dstirq)
Add a small doxygen-style comment for the function please, which
explains what it does and how and why.
> +{
> + struct device *child;
>
> + int linkn;
> + int i;
> + int srcbus;
> + int slot;
Can be in one line instead of four.
> + struct bus *link;
> + unsigned char dstirq_x[4];
u8
> +
> + for (linkn = 0; linkn < dev->links; linkn++) {
> +
> + link = &dev->link[linkn];
> + child = link->children;
> + srcbus = link->secondary;
> +
> + while (child) {
> + if (child->path.type != DEVICE_PATH_PCI)
> + goto next;
> +
> + slot = (child->path.u.pci.devfn >> 3);
> + /* round pins */
> + for (i = 0; i < 4; i++)
> + dstirq_x[i] = dstirq[(i + slot) % 4];
> +
> + if ((child->class >> 16) != PCI_BASE_CLASS_BRIDGE) {
> + /* pci device */
> + printk_debug("route irq: %s %04x\n", dev_path(child));
> + for (i = 0; i < 4; i++)
> + smp_write_intsrc(mc, irqtype, irqflag, srcbus, (slot<<2)|i, dstapic, dstirq_x[i]);
> + goto next;
> + }
> +
> + switch (child->class>>8) {
> + case PCI_CLASS_BRIDGE_PCI:
> + case PCI_CLASS_BRIDGE_PCMCIA:
> + case PCI_CLASS_BRIDGE_CARDBUS:
> + printk_debug("route irq bridge: %s %04x\n", dev_path(child));
> + smp_write_intsrc_pci_bridge(mc, irqtype, irqflag, child, dstapic, dstirq_x);
> + }
> +
> + next:
> + child = child->sibling;
> + }
> +
> + }
> +}
> +
> void smp_write_lintsrc(struct mp_config_table *mc,
> unsigned char irqtype, unsigned short irqflag,
> unsigned char srcbusid, unsigned char srcbusirq,
> Index: src/arch/i386/include/arch/smp/mpspec.h
> ===================================================================
> --- src/arch/i386/include/arch/smp/mpspec.h (Revision 2998)
> +++ src/arch/i386/include/arch/smp/mpspec.h (Arbeitskopie)
> @@ -248,6 +248,10 @@
> unsigned char irqtype, unsigned short irqflag,
> unsigned char srcbus, unsigned char srcbusirq,
> unsigned char dstapic, unsigned char dstirq);
> +void smp_write_intsrc_pci_bridge(struct mp_config_table *mc,
> + unsigned char irqtype, unsigned short irqflag,
> + struct device *dev,
> + unsigned char dstapic, unsigned char *dstirq);
> void smp_write_lintsrc(struct mp_config_table *mc,
> unsigned char irqtype, unsigned short irqflag,
> unsigned char srcbusid, unsigned char srcbusirq,
Thanks, Uwe.
--
http://www.hermann-uwe.de | http://www.holsham-traders.de
http://www.crazy-hacks.org | http://www.unmaintained-free-software.org
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