Save and restore CIA window configuration data.

arch/alpha/kernel/core_cia.c

@@ -47,6 +47,15 @@
 
 #define vip	volatile int  *
 
+/* Save CIA configuration data as the console had it set up.  */
+
+struct 
+{
+	unsigned int w_base;
+	unsigned int w_mask;
+	unsigned int t_base;
+} saved_config[4] __attribute((common));
+
 /*
  * Given a bus, device, and function number, compute resulting
  * configuration space address.  It is therefore not safe to have
@@ -648,6 +657,24 @@ do_init_arch(int is_pyxis)
 		hose->dense_io_base = CIA_BW_IO - IDENT_ADDR;
 	}
 
+	/* Save CIA configuration data as the console had it set up.  */
+
+	saved_config[0].w_base = *(vip)CIA_IOC_PCI_W0_BASE;
+	saved_config[0].w_mask = *(vip)CIA_IOC_PCI_W0_MASK;
+	saved_config[0].t_base = *(vip)CIA_IOC_PCI_T0_BASE;
+
+	saved_config[1].w_base = *(vip)CIA_IOC_PCI_W1_BASE;
+	saved_config[1].w_mask = *(vip)CIA_IOC_PCI_W1_MASK;
+	saved_config[1].t_base = *(vip)CIA_IOC_PCI_T1_BASE;
+
+	saved_config[2].w_base = *(vip)CIA_IOC_PCI_W2_BASE;
+	saved_config[2].w_mask = *(vip)CIA_IOC_PCI_W2_MASK;
+	saved_config[2].t_base = *(vip)CIA_IOC_PCI_T2_BASE;
+
+	saved_config[3].w_base = *(vip)CIA_IOC_PCI_W3_BASE;
+	saved_config[3].w_mask = *(vip)CIA_IOC_PCI_W3_MASK;
+	saved_config[3].t_base = *(vip)CIA_IOC_PCI_T3_BASE;
+
 	/*
 	 * Set up the PCI to main memory translation windows.
 	 *
@@ -736,6 +763,26 @@ pyxis_init_arch(void)
 	do_init_arch(1);
 }
 
+void
+cia_kill_arch(int mode)
+{
+	*(vip)CIA_IOC_PCI_W0_BASE = saved_config[0].w_base;
+	*(vip)CIA_IOC_PCI_W0_MASK = saved_config[0].w_mask;
+	*(vip)CIA_IOC_PCI_T0_BASE = saved_config[0].t_base;
+
+	*(vip)CIA_IOC_PCI_W1_BASE = saved_config[1].w_base;
+	*(vip)CIA_IOC_PCI_W1_MASK = saved_config[1].w_mask;
+	*(vip)CIA_IOC_PCI_T1_BASE = saved_config[1].t_base;
+
+	*(vip)CIA_IOC_PCI_W2_BASE = saved_config[2].w_base;
+	*(vip)CIA_IOC_PCI_W2_MASK = saved_config[2].w_mask;
+	*(vip)CIA_IOC_PCI_T2_BASE = saved_config[2].t_base;
+
+	*(vip)CIA_IOC_PCI_W3_BASE = saved_config[3].w_base;
+	*(vip)CIA_IOC_PCI_W3_MASK = saved_config[3].w_mask;
+	*(vip)CIA_IOC_PCI_T3_BASE = saved_config[3].t_base;
+}
+
 void __init
 cia_init_pci(void)
 {

arch/alpha/kernel/core_titan.c

@@ -27,12 +27,14 @@
 
 unsigned TITAN_agp = 0;
 
-static struct
+/* Save Titan configuration data as the console had it set up.  */
+
+struct
 {
 	unsigned long wsba[4];
 	unsigned long wsm[4];
 	unsigned long tba[4];
-} saved_pachip_port[4];
+} saved_config[4] __attribute__((common));
 
 /*
  * BIOS32-style PCI interface:
@@ -289,21 +291,21 @@ titan_init_one_pachip_port(titan_pachip_port *port, int index)
 	 * Save the existing PCI window translations.  SRM will 
 	 * need them when we go to reboot.
 	 */
-	saved_pachip_port[index].wsba[0] = port->wsba[0].csr;
-	saved_pachip_port[index].wsm[0]  = port->wsm[0].csr;
-	saved_pachip_port[index].tba[0]  = port->tba[0].csr;
+	saved_config[index].wsba[0] = port->wsba[0].csr;
+	saved_config[index].wsm[0]  = port->wsm[0].csr;
+	saved_config[index].tba[0]  = port->tba[0].csr;
 
-	saved_pachip_port[index].wsba[1] = port->wsba[1].csr;
-	saved_pachip_port[index].wsm[1]  = port->wsm[1].csr;
-	saved_pachip_port[index].tba[1]  = port->tba[1].csr;
+	saved_config[index].wsba[1] = port->wsba[1].csr;
+	saved_config[index].wsm[1]  = port->wsm[1].csr;
+	saved_config[index].tba[1]  = port->tba[1].csr;
 
-	saved_pachip_port[index].wsba[2] = port->wsba[2].csr;
-	saved_pachip_port[index].wsm[2]  = port->wsm[2].csr;
-	saved_pachip_port[index].tba[2]  = port->tba[2].csr;
+	saved_config[index].wsba[2] = port->wsba[2].csr;
+	saved_config[index].wsm[2]  = port->wsm[2].csr;
+	saved_config[index].tba[2]  = port->tba[2].csr;
 
-	saved_pachip_port[index].wsba[3] = port->wsba[3].csr;
-	saved_pachip_port[index].wsm[3]  = port->wsm[3].csr;
-	saved_pachip_port[index].tba[3]  = port->tba[3].csr;
+	saved_config[index].wsba[3] = port->wsba[3].csr;
+	saved_config[index].wsm[3]  = port->wsm[3].csr;
+	saved_config[index].tba[3]  = port->tba[3].csr;
 
 	/*
 	 * Set up the PCI to main memory translation windows.
@@ -392,21 +394,21 @@ titan_init_arch(void)
 static void
 titan_kill_one_pachip_port(titan_pachip_port *port, int index)
 {
-	port->wsba[0].csr = saved_pachip_port[index].wsba[0];
-	port->wsm[0].csr  = saved_pachip_port[index].wsm[0];
-	port->tba[0].csr  = saved_pachip_port[index].tba[0];
+	port->wsba[0].csr = saved_config[index].wsba[0];
+	port->wsm[0].csr  = saved_config[index].wsm[0];
+	port->tba[0].csr  = saved_config[index].tba[0];
 
-	port->wsba[1].csr = saved_pachip_port[index].wsba[1];
-	port->wsm[1].csr  = saved_pachip_port[index].wsm[1];
-	port->tba[1].csr  = saved_pachip_port[index].tba[1];
+	port->wsba[1].csr = saved_config[index].wsba[1];
+	port->wsm[1].csr  = saved_config[index].wsm[1];
+	port->tba[1].csr  = saved_config[index].tba[1];
 
-	port->wsba[2].csr = saved_pachip_port[index].wsba[2];
-	port->wsm[2].csr  = saved_pachip_port[index].wsm[2];
-	port->tba[2].csr  = saved_pachip_port[index].tba[2];
+	port->wsba[2].csr = saved_config[index].wsba[2];
+	port->wsm[2].csr  = saved_config[index].wsm[2];
+	port->tba[2].csr  = saved_config[index].tba[2];
 
-	port->wsba[3].csr = saved_pachip_port[index].wsba[3];
-	port->wsm[3].csr  = saved_pachip_port[index].wsm[3];
-	port->tba[3].csr  = saved_pachip_port[index].tba[3];
+	port->wsba[3].csr = saved_config[index].wsba[3];
+	port->wsm[3].csr  = saved_config[index].wsm[3];
+	port->tba[3].csr  = saved_config[index].tba[3];
 }
 
 static void

arch/alpha/kernel/core_tsunami.c

@@ -26,13 +26,14 @@
 #include "proto.h"
 #include "pci_impl.h"
 
+/* Save Tsunami configuration data as the console had it set up.  */
 
-static struct 
+struct 
 {
 	unsigned long wsba[4];
 	unsigned long wsm[4];
 	unsigned long tba[4];
-} saved_pchip[2];
+} saved_config[2] __attribute__((common));
 
 /*
  * NOTE: Herein lie back-to-back mb instructions.  They are magic. 
@@ -293,21 +294,21 @@ tsunami_init_one_pchip(tsunami_pchip *pchip, int index)
 	 * need them when we go to reboot.
 	 */
 
-	saved_pchip[index].wsba[0] = pchip->wsba[0].csr;
-	saved_pchip[index].wsm[0] = pchip->wsm[0].csr;
-	saved_pchip[index].tba[0] = pchip->tba[0].csr;
+	saved_config[index].wsba[0] = pchip->wsba[0].csr;
+	saved_config[index].wsm[0] = pchip->wsm[0].csr;
+	saved_config[index].tba[0] = pchip->tba[0].csr;
 
-	saved_pchip[index].wsba[1] = pchip->wsba[1].csr;
-	saved_pchip[index].wsm[1] = pchip->wsm[1].csr;
-	saved_pchip[index].tba[1] = pchip->tba[1].csr;
+	saved_config[index].wsba[1] = pchip->wsba[1].csr;
+	saved_config[index].wsm[1] = pchip->wsm[1].csr;
+	saved_config[index].tba[1] = pchip->tba[1].csr;
 
-	saved_pchip[index].wsba[2] = pchip->wsba[2].csr;
-	saved_pchip[index].wsm[2] = pchip->wsm[2].csr;
-	saved_pchip[index].tba[2] = pchip->tba[2].csr;
+	saved_config[index].wsba[2] = pchip->wsba[2].csr;
+	saved_config[index].wsm[2] = pchip->wsm[2].csr;
+	saved_config[index].tba[2] = pchip->tba[2].csr;
 
-	saved_pchip[index].wsba[3] = pchip->wsba[3].csr;
-	saved_pchip[index].wsm[3] = pchip->wsm[3].csr;
-	saved_pchip[index].tba[3] = pchip->tba[3].csr;
+	saved_config[index].wsba[3] = pchip->wsba[3].csr;
+	saved_config[index].wsm[3] = pchip->wsm[3].csr;
+	saved_config[index].tba[3] = pchip->tba[3].csr;
 
 	/*
 	 * Set up the PCI to main memory translation windows.
@@ -403,21 +404,21 @@ tsunami_init_arch(void)
 static void
 tsunami_kill_one_pchip(tsunami_pchip *pchip, int index)
 {
-	pchip->wsba[0].csr = saved_pchip[index].wsba[0];
-	pchip->wsm[0].csr = saved_pchip[index].wsm[0];
-	pchip->tba[0].csr = saved_pchip[index].tba[0];
+	pchip->wsba[0].csr = saved_config[index].wsba[0];
+	pchip->wsm[0].csr = saved_config[index].wsm[0];
+	pchip->tba[0].csr = saved_config[index].tba[0];
 
-	pchip->wsba[1].csr = saved_pchip[index].wsba[1];
-	pchip->wsm[1].csr = saved_pchip[index].wsm[1];
-	pchip->tba[1].csr = saved_pchip[index].tba[1];
+	pchip->wsba[1].csr = saved_config[index].wsba[1];
+	pchip->wsm[1].csr = saved_config[index].wsm[1];
+	pchip->tba[1].csr = saved_config[index].tba[1];
 
-	pchip->wsba[2].csr = saved_pchip[index].wsba[2];
-	pchip->wsm[2].csr = saved_pchip[index].wsm[2];
-	pchip->tba[2].csr = saved_pchip[index].tba[2];
+	pchip->wsba[2].csr = saved_config[index].wsba[2];
+	pchip->wsm[2].csr = saved_config[index].wsm[2];
+	pchip->tba[2].csr = saved_config[index].tba[2];
 
-	pchip->wsba[3].csr = saved_pchip[index].wsba[3];
-	pchip->wsm[3].csr = saved_pchip[index].wsm[3];
-	pchip->tba[3].csr = saved_pchip[index].tba[3];
+	pchip->wsba[3].csr = saved_config[index].wsba[3];
+	pchip->wsm[3].csr = saved_config[index].wsm[3];
+	pchip->tba[3].csr = saved_config[index].tba[3];
 }
 
 void

arch/alpha/kernel/proto.h

@@ -24,6 +24,7 @@ extern struct pci_ops cia_pci_ops;
 extern void cia_init_pci(void);
 extern void cia_init_arch(void);
 extern void pyxis_init_arch(void);
+extern void cia_kill_arch(int);
 extern void cia_machine_check(u64, u64, struct pt_regs *);
 extern void cia_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
 

arch/alpha/kernel/sys_alcor.c

@@ -221,6 +221,8 @@ alcor_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
 static void
 alcor_kill_arch(int mode)
 {
+	cia_kill_arch(mode);
+
 	switch(mode) {
 	case LINUX_REBOOT_CMD_RESTART:
 		/* Who said DEC engineer's have no sense of humor? ;-)  */

arch/alpha/kernel/sys_cabriolet.c

@@ -338,7 +338,6 @@ struct alpha_machine_vector cabriolet_mv __initmv = {
 	init_irq:		cabriolet_init_irq,
 	init_rtc:		common_init_rtc,
 	init_pci:		cabriolet_init_pci,
-	kill_arch:		NULL,
 	pci_map_irq:		cabriolet_map_irq,
 	pci_swizzle:		common_swizzle,
 };
@@ -366,6 +365,7 @@ struct alpha_machine_vector eb164_mv __initmv = {
 	init_irq:		cabriolet_init_irq,
 	init_rtc:		common_init_rtc,
 	init_pci:		cia_cab_init_pci,
+	kill_arch:		cia_kill_arch,
 	pci_map_irq:		cabriolet_map_irq,
 	pci_swizzle:		common_swizzle,
 };
@@ -417,6 +417,7 @@ struct alpha_machine_vector lx164_mv __initmv = {
 	init_irq:		cabriolet_init_irq,
 	init_rtc:		common_init_rtc,
 	init_pci:		alphapc164_init_pci,
+	kill_arch:		cia_kill_arch,
 	pci_map_irq:		alphapc164_map_irq,
 	pci_swizzle:		common_swizzle,
 };
@@ -442,6 +443,7 @@ struct alpha_machine_vector pc164_mv __initmv = {
 	init_irq:		pc164_init_irq,
 	init_rtc:		common_init_rtc,
 	init_pci:		alphapc164_init_pci,
+	kill_arch:		cia_kill_arch,
 	pci_map_irq:		alphapc164_map_irq,
 	pci_swizzle:		common_swizzle,
 };

arch/alpha/kernel/sys_miata.c

@@ -238,6 +238,8 @@ miata_init_pci(void)
 static void
 miata_kill_arch(int mode)
 {
+	cia_kill_arch(mode);
+
 	switch(mode) {
 	case LINUX_REBOOT_CMD_RESTART:
 		/* Who said DEC engineers have no sense of humor? ;-)  */ 

arch/alpha/kernel/sys_mikasa.c

@@ -234,7 +234,6 @@ struct alpha_machine_vector mikasa_mv __initmv = {
 	init_irq:		mikasa_init_irq,
 	init_rtc:		common_init_rtc,
 	init_pci:		common_init_pci,
-	kill_arch:		NULL,
 	pci_map_irq:		mikasa_map_irq,
 	pci_swizzle:		common_swizzle,
 };
@@ -260,6 +259,7 @@ struct alpha_machine_vector mikasa_primo_mv __initmv = {
 	init_irq:		mikasa_init_irq,
 	init_rtc:		common_init_rtc,
 	init_pci:		cia_init_pci,
+	kill_arch:		cia_kill_arch,
 	pci_map_irq:		mikasa_map_irq,
 	pci_swizzle:		common_swizzle,
 };

arch/alpha/kernel/sys_noritake.c

@@ -316,7 +316,6 @@ struct alpha_machine_vector noritake_mv __initmv = {
 	init_irq:		noritake_init_irq,
 	init_rtc:		common_init_rtc,
 	init_pci:		common_init_pci,
-	kill_arch:		NULL,
 	pci_map_irq:		noritake_map_irq,
 	pci_swizzle:		noritake_swizzle,
 };
@@ -342,6 +341,7 @@ struct alpha_machine_vector noritake_primo_mv __initmv = {
 	init_irq:		noritake_init_irq,
 	init_rtc:		common_init_rtc,
 	init_pci:		cia_init_pci,
+	kill_arch:		cia_kill_arch,
 	pci_map_irq:		noritake_map_irq,
 	pci_swizzle:		noritake_swizzle,
 };

arch/alpha/kernel/sys_ruffian.c

@@ -85,6 +85,7 @@ ruffian_init_rtc(void)
 static void
 ruffian_kill_arch (int mode)
 {
+	cia_kill_arch(mode);
 #if 0
 	/* This only causes re-entry to ARCSBIOS */
 	/* Perhaps this works for other PYXIS as well?  */

arch/alpha/kernel/sys_sx164.c

@@ -172,7 +172,7 @@ struct alpha_machine_vector sx164_mv __initmv = {
 	init_irq:		sx164_init_irq,
 	init_rtc:		common_init_rtc,
 	init_pci:		sx164_init_pci,
-	kill_arch:		NULL,
+	kill_arch:		cia_kill_arch,
 	pci_map_irq:		sx164_map_irq,
 	pci_swizzle:		common_swizzle,
 };

arch/alpha/kernel/sys_takara.c

@@ -286,7 +286,7 @@ struct alpha_machine_vector takara_mv __initmv = {
 	init_irq:		takara_init_irq,
 	init_rtc:		common_init_rtc,
 	init_pci:		takara_init_pci,
-	kill_arch:		NULL,
+	kill_arch:		cia_kill_arch,
 	pci_map_irq:		takara_map_irq,
 	pci_swizzle:		takara_swizzle,
 };