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authorMatthew Wilcox <matthew@wil.cx>2009-12-13 08:11:32 -0500
committerJesse Barnes <jbarnes@virtuousgeek.org>2010-02-22 19:15:17 -0500
commit3749c51ac6c1560aa1cb1520066bed84c6f8152a (patch)
tree3cbfb6a6d2df821e3e80ccce29ede8011b94246e /drivers
parent536c8cb49eccd4f753b4782e7e975ef87359cb44 (diff)
PCI: Make current and maximum bus speeds part of the PCI core
Move the max_bus_speed and cur_bus_speed into the pci_bus. Expose the values through the PCI slot driver instead of the hotplug slot driver. Update all the hotplug drivers to use the pci_bus instead of their own data structures. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/pci/hotplug/acpiphp_core.c2
-rw-r--r--drivers/pci/hotplug/cpqphp.h2
-rw-r--r--drivers/pci/hotplug/cpqphp_core.c57
-rw-r--r--drivers/pci/hotplug/cpqphp_ctrl.c27
-rw-r--r--drivers/pci/hotplug/ibmphp_core.c106
-rw-r--r--drivers/pci/hotplug/pci_hotplug_core.c132
-rw-r--r--drivers/pci/hotplug/pciehp_core.c25
-rw-r--r--drivers/pci/hotplug/pciehp_hpc.c72
-rw-r--r--drivers/pci/hotplug/rpaphp_core.c23
-rw-r--r--drivers/pci/hotplug/shpchp.h2
-rw-r--r--drivers/pci/hotplug/shpchp_core.c35
-rw-r--r--drivers/pci/hotplug/shpchp_ctrl.c13
-rw-r--r--drivers/pci/hotplug/shpchp_hpc.c149
-rw-r--r--drivers/pci/probe.c27
-rw-r--r--drivers/pci/slot.c54
15 files changed, 241 insertions, 485 deletions
diff --git a/drivers/pci/hotplug/acpiphp_core.c b/drivers/pci/hotplug/acpiphp_core.c
index 4dd7114964ac..efa9f2de51c1 100644
--- a/drivers/pci/hotplug/acpiphp_core.c
+++ b/drivers/pci/hotplug/acpiphp_core.c
@@ -332,8 +332,6 @@ int acpiphp_register_hotplug_slot(struct acpiphp_slot *acpiphp_slot)
332 slot->hotplug_slot->info->attention_status = 0; 332 slot->hotplug_slot->info->attention_status = 0;
333 slot->hotplug_slot->info->latch_status = acpiphp_get_latch_status(slot->acpi_slot); 333 slot->hotplug_slot->info->latch_status = acpiphp_get_latch_status(slot->acpi_slot);
334 slot->hotplug_slot->info->adapter_status = acpiphp_get_adapter_status(slot->acpi_slot); 334 slot->hotplug_slot->info->adapter_status = acpiphp_get_adapter_status(slot->acpi_slot);
335 slot->hotplug_slot->info->max_bus_speed = PCI_SPEED_UNKNOWN;
336 slot->hotplug_slot->info->cur_bus_speed = PCI_SPEED_UNKNOWN;
337 335
338 acpiphp_slot->slot = slot; 336 acpiphp_slot->slot = slot;
339 snprintf(name, SLOT_NAME_SIZE, "%llu", slot->acpi_slot->sun); 337 snprintf(name, SLOT_NAME_SIZE, "%llu", slot->acpi_slot->sun);
diff --git a/drivers/pci/hotplug/cpqphp.h b/drivers/pci/hotplug/cpqphp.h
index 9c6a9fd26812..d8ffc7366801 100644
--- a/drivers/pci/hotplug/cpqphp.h
+++ b/drivers/pci/hotplug/cpqphp.h
@@ -310,8 +310,6 @@ struct controller {
310 u8 first_slot; 310 u8 first_slot;
311 u8 add_support; 311 u8 add_support;
312 u8 push_flag; 312 u8 push_flag;
313 enum pci_bus_speed speed;
314 enum pci_bus_speed speed_capability;
315 u8 push_button; /* 0 = no pushbutton, 1 = pushbutton present */ 313 u8 push_button; /* 0 = no pushbutton, 1 = pushbutton present */
316 u8 slot_switch_type; /* 0 = no switch, 1 = switch present */ 314 u8 slot_switch_type; /* 0 = no switch, 1 = switch present */
317 u8 defeature_PHP; /* 0 = PHP not supported, 1 = PHP supported */ 315 u8 defeature_PHP; /* 0 = PHP not supported, 1 = PHP supported */
diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c
index 075b4f4b6e0d..f184d1d2ecbe 100644
--- a/drivers/pci/hotplug/cpqphp_core.c
+++ b/drivers/pci/hotplug/cpqphp_core.c
@@ -583,30 +583,6 @@ static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value)
583 return 0; 583 return 0;
584} 584}
585 585
586static int get_max_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value)
587{
588 struct slot *slot = hotplug_slot->private;
589 struct controller *ctrl = slot->ctrl;
590
591 dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
592
593 *value = ctrl->speed_capability;
594
595 return 0;
596}
597
598static int get_cur_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value)
599{
600 struct slot *slot = hotplug_slot->private;
601 struct controller *ctrl = slot->ctrl;
602
603 dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
604
605 *value = ctrl->speed;
606
607 return 0;
608}
609
610static struct hotplug_slot_ops cpqphp_hotplug_slot_ops = { 586static struct hotplug_slot_ops cpqphp_hotplug_slot_ops = {
611 .set_attention_status = set_attention_status, 587 .set_attention_status = set_attention_status,
612 .enable_slot = process_SI, 588 .enable_slot = process_SI,
@@ -616,8 +592,6 @@ static struct hotplug_slot_ops cpqphp_hotplug_slot_ops = {
616 .get_attention_status = get_attention_status, 592 .get_attention_status = get_attention_status,
617 .get_latch_status = get_latch_status, 593 .get_latch_status = get_latch_status,
618 .get_adapter_status = get_adapter_status, 594 .get_adapter_status = get_adapter_status,
619 .get_max_bus_speed = get_max_bus_speed,
620 .get_cur_bus_speed = get_cur_bus_speed,
621}; 595};
622 596
623#define SLOT_NAME_SIZE 10 597#define SLOT_NAME_SIZE 10
@@ -629,6 +603,7 @@ static int ctrl_slot_setup(struct controller *ctrl,
629 struct slot *slot; 603 struct slot *slot;
630 struct hotplug_slot *hotplug_slot; 604 struct hotplug_slot *hotplug_slot;
631 struct hotplug_slot_info *hotplug_slot_info; 605 struct hotplug_slot_info *hotplug_slot_info;
606 struct pci_bus *bus = ctrl->pci_bus;
632 u8 number_of_slots; 607 u8 number_of_slots;
633 u8 slot_device; 608 u8 slot_device;
634 u8 slot_number; 609 u8 slot_number;
@@ -694,7 +669,7 @@ static int ctrl_slot_setup(struct controller *ctrl,
694 slot->capabilities |= PCISLOT_64_BIT_SUPPORTED; 669 slot->capabilities |= PCISLOT_64_BIT_SUPPORTED;
695 if (is_slot66mhz(slot)) 670 if (is_slot66mhz(slot))
696 slot->capabilities |= PCISLOT_66_MHZ_SUPPORTED; 671 slot->capabilities |= PCISLOT_66_MHZ_SUPPORTED;
697 if (ctrl->speed == PCI_SPEED_66MHz) 672 if (bus->cur_bus_speed == PCI_SPEED_66MHz)
698 slot->capabilities |= PCISLOT_66_MHZ_OPERATION; 673 slot->capabilities |= PCISLOT_66_MHZ_OPERATION;
699 674
700 ctrl_slot = 675 ctrl_slot =
@@ -844,6 +819,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
844 u32 rc; 819 u32 rc;
845 struct controller *ctrl; 820 struct controller *ctrl;
846 struct pci_func *func; 821 struct pci_func *func;
822 struct pci_bus *bus;
847 int err; 823 int err;
848 824
849 err = pci_enable_device(pdev); 825 err = pci_enable_device(pdev);
@@ -852,6 +828,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
852 pci_name(pdev), err); 828 pci_name(pdev), err);
853 return err; 829 return err;
854 } 830 }
831 bus = pdev->subordinate;
855 832
856 /* Need to read VID early b/c it's used to differentiate CPQ and INTC 833 /* Need to read VID early b/c it's used to differentiate CPQ and INTC
857 * discovery 834 * discovery
@@ -929,22 +906,22 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
929 pci_read_config_byte(pdev, 0x41, &bus_cap); 906 pci_read_config_byte(pdev, 0x41, &bus_cap);
930 if (bus_cap & 0x80) { 907 if (bus_cap & 0x80) {
931 dbg("bus max supports 133MHz PCI-X\n"); 908 dbg("bus max supports 133MHz PCI-X\n");
932 ctrl->speed_capability = PCI_SPEED_133MHz_PCIX; 909 bus->max_bus_speed = PCI_SPEED_133MHz_PCIX;
933 break; 910 break;
934 } 911 }
935 if (bus_cap & 0x40) { 912 if (bus_cap & 0x40) {
936 dbg("bus max supports 100MHz PCI-X\n"); 913 dbg("bus max supports 100MHz PCI-X\n");
937 ctrl->speed_capability = PCI_SPEED_100MHz_PCIX; 914 bus->max_bus_speed = PCI_SPEED_100MHz_PCIX;
938 break; 915 break;
939 } 916 }
940 if (bus_cap & 20) { 917 if (bus_cap & 20) {
941 dbg("bus max supports 66MHz PCI-X\n"); 918 dbg("bus max supports 66MHz PCI-X\n");
942 ctrl->speed_capability = PCI_SPEED_66MHz_PCIX; 919 bus->max_bus_speed = PCI_SPEED_66MHz_PCIX;
943 break; 920 break;
944 } 921 }
945 if (bus_cap & 10) { 922 if (bus_cap & 10) {
946 dbg("bus max supports 66MHz PCI\n"); 923 dbg("bus max supports 66MHz PCI\n");
947 ctrl->speed_capability = PCI_SPEED_66MHz; 924 bus->max_bus_speed = PCI_SPEED_66MHz;
948 break; 925 break;
949 } 926 }
950 927
@@ -955,7 +932,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
955 case PCI_SUB_HPC_ID: 932 case PCI_SUB_HPC_ID:
956 /* Original 6500/7000 implementation */ 933 /* Original 6500/7000 implementation */
957 ctrl->slot_switch_type = 1; 934 ctrl->slot_switch_type = 1;
958 ctrl->speed_capability = PCI_SPEED_33MHz; 935 bus->max_bus_speed = PCI_SPEED_33MHz;
959 ctrl->push_button = 0; 936 ctrl->push_button = 0;
960 ctrl->pci_config_space = 1; 937 ctrl->pci_config_space = 1;
961 ctrl->defeature_PHP = 1; 938 ctrl->defeature_PHP = 1;
@@ -966,7 +943,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
966 /* First Pushbutton implementation */ 943 /* First Pushbutton implementation */
967 ctrl->push_flag = 1; 944 ctrl->push_flag = 1;
968 ctrl->slot_switch_type = 1; 945 ctrl->slot_switch_type = 1;
969 ctrl->speed_capability = PCI_SPEED_33MHz; 946 bus->max_bus_speed = PCI_SPEED_33MHz;
970 ctrl->push_button = 1; 947 ctrl->push_button = 1;
971 ctrl->pci_config_space = 1; 948 ctrl->pci_config_space = 1;
972 ctrl->defeature_PHP = 1; 949 ctrl->defeature_PHP = 1;
@@ -976,7 +953,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
976 case PCI_SUB_HPC_ID_INTC: 953 case PCI_SUB_HPC_ID_INTC:
977 /* Third party (6500/7000) */ 954 /* Third party (6500/7000) */
978 ctrl->slot_switch_type = 1; 955 ctrl->slot_switch_type = 1;
979 ctrl->speed_capability = PCI_SPEED_33MHz; 956 bus->max_bus_speed = PCI_SPEED_33MHz;
980 ctrl->push_button = 0; 957 ctrl->push_button = 0;
981 ctrl->pci_config_space = 1; 958 ctrl->pci_config_space = 1;
982 ctrl->defeature_PHP = 1; 959 ctrl->defeature_PHP = 1;
@@ -987,7 +964,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
987 /* First 66 Mhz implementation */ 964 /* First 66 Mhz implementation */
988 ctrl->push_flag = 1; 965 ctrl->push_flag = 1;
989 ctrl->slot_switch_type = 1; 966 ctrl->slot_switch_type = 1;
990 ctrl->speed_capability = PCI_SPEED_66MHz; 967 bus->max_bus_speed = PCI_SPEED_66MHz;
991 ctrl->push_button = 1; 968 ctrl->push_button = 1;
992 ctrl->pci_config_space = 1; 969 ctrl->pci_config_space = 1;
993 ctrl->defeature_PHP = 1; 970 ctrl->defeature_PHP = 1;
@@ -998,7 +975,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
998 /* First PCI-X implementation, 100MHz */ 975 /* First PCI-X implementation, 100MHz */
999 ctrl->push_flag = 1; 976 ctrl->push_flag = 1;
1000 ctrl->slot_switch_type = 1; 977 ctrl->slot_switch_type = 1;
1001 ctrl->speed_capability = PCI_SPEED_100MHz_PCIX; 978 bus->max_bus_speed = PCI_SPEED_100MHz_PCIX;
1002 ctrl->push_button = 1; 979 ctrl->push_button = 1;
1003 ctrl->pci_config_space = 1; 980 ctrl->pci_config_space = 1;
1004 ctrl->defeature_PHP = 1; 981 ctrl->defeature_PHP = 1;
@@ -1015,9 +992,9 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1015 case PCI_VENDOR_ID_INTEL: 992 case PCI_VENDOR_ID_INTEL:
1016 /* Check for speed capability (0=33, 1=66) */ 993 /* Check for speed capability (0=33, 1=66) */
1017 if (subsystem_deviceid & 0x0001) 994 if (subsystem_deviceid & 0x0001)
1018 ctrl->speed_capability = PCI_SPEED_66MHz; 995 bus->max_bus_speed = PCI_SPEED_66MHz;
1019 else 996 else
1020 ctrl->speed_capability = PCI_SPEED_33MHz; 997 bus->max_bus_speed = PCI_SPEED_33MHz;
1021 998
1022 /* Check for push button */ 999 /* Check for push button */
1023 if (subsystem_deviceid & 0x0002) 1000 if (subsystem_deviceid & 0x0002)
@@ -1079,7 +1056,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1079 pdev->bus->number); 1056 pdev->bus->number);
1080 1057
1081 dbg("Hotplug controller capabilities:\n"); 1058 dbg("Hotplug controller capabilities:\n");
1082 dbg(" speed_capability %d\n", ctrl->speed_capability); 1059 dbg(" speed_capability %d\n", bus->max_bus_speed);
1083 dbg(" slot_switch_type %s\n", ctrl->slot_switch_type ? 1060 dbg(" slot_switch_type %s\n", ctrl->slot_switch_type ?
1084 "switch present" : "no switch"); 1061 "switch present" : "no switch");
1085 dbg(" defeature_PHP %s\n", ctrl->defeature_PHP ? 1062 dbg(" defeature_PHP %s\n", ctrl->defeature_PHP ?
@@ -1142,7 +1119,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1142 } 1119 }
1143 1120
1144 /* Check for 66Mhz operation */ 1121 /* Check for 66Mhz operation */
1145 ctrl->speed = get_controller_speed(ctrl); 1122 bus->cur_bus_speed = get_controller_speed(ctrl);
1146 1123
1147 1124
1148 /******************************************************** 1125 /********************************************************
diff --git a/drivers/pci/hotplug/cpqphp_ctrl.c b/drivers/pci/hotplug/cpqphp_ctrl.c
index 0ff689afa757..e43908d9b5df 100644
--- a/drivers/pci/hotplug/cpqphp_ctrl.c
+++ b/drivers/pci/hotplug/cpqphp_ctrl.c
@@ -1130,12 +1130,13 @@ static int is_bridge(struct pci_func * func)
1130static u8 set_controller_speed(struct controller *ctrl, u8 adapter_speed, u8 hp_slot) 1130static u8 set_controller_speed(struct controller *ctrl, u8 adapter_speed, u8 hp_slot)
1131{ 1131{
1132 struct slot *slot; 1132 struct slot *slot;
1133 struct pci_bus *bus = ctrl->pci_bus;
1133 u8 reg; 1134 u8 reg;
1134 u8 slot_power = readb(ctrl->hpc_reg + SLOT_POWER); 1135 u8 slot_power = readb(ctrl->hpc_reg + SLOT_POWER);
1135 u16 reg16; 1136 u16 reg16;
1136 u32 leds = readl(ctrl->hpc_reg + LED_CONTROL); 1137 u32 leds = readl(ctrl->hpc_reg + LED_CONTROL);
1137 1138
1138 if (ctrl->speed == adapter_speed) 1139 if (bus->cur_bus_speed == adapter_speed)
1139 return 0; 1140 return 0;
1140 1141
1141 /* We don't allow freq/mode changes if we find another adapter running 1142 /* We don't allow freq/mode changes if we find another adapter running
@@ -1152,7 +1153,7 @@ static u8 set_controller_speed(struct controller *ctrl, u8 adapter_speed, u8 hp_
1152 * lower speed/mode, we allow the new adapter to function at 1153 * lower speed/mode, we allow the new adapter to function at
1153 * this rate if supported 1154 * this rate if supported
1154 */ 1155 */
1155 if (ctrl->speed < adapter_speed) 1156 if (bus->cur_bus_speed < adapter_speed)
1156 return 0; 1157 return 0;
1157 1158
1158 return 1; 1159 return 1;
@@ -1161,20 +1162,20 @@ static u8 set_controller_speed(struct controller *ctrl, u8 adapter_speed, u8 hp_
1161 /* If the controller doesn't support freq/mode changes and the 1162 /* If the controller doesn't support freq/mode changes and the
1162 * controller is running at a higher mode, we bail 1163 * controller is running at a higher mode, we bail
1163 */ 1164 */
1164 if ((ctrl->speed > adapter_speed) && (!ctrl->pcix_speed_capability)) 1165 if ((bus->cur_bus_speed > adapter_speed) && (!ctrl->pcix_speed_capability))
1165 return 1; 1166 return 1;
1166 1167
1167 /* But we allow the adapter to run at a lower rate if possible */ 1168 /* But we allow the adapter to run at a lower rate if possible */
1168 if ((ctrl->speed < adapter_speed) && (!ctrl->pcix_speed_capability)) 1169 if ((bus->cur_bus_speed < adapter_speed) && (!ctrl->pcix_speed_capability))
1169 return 0; 1170 return 0;
1170 1171
1171 /* We try to set the max speed supported by both the adapter and 1172 /* We try to set the max speed supported by both the adapter and
1172 * controller 1173 * controller
1173 */ 1174 */
1174 if (ctrl->speed_capability < adapter_speed) { 1175 if (bus->max_bus_speed < adapter_speed) {
1175 if (ctrl->speed == ctrl->speed_capability) 1176 if (bus->cur_bus_speed == bus->max_bus_speed)
1176 return 0; 1177 return 0;
1177 adapter_speed = ctrl->speed_capability; 1178 adapter_speed = bus->max_bus_speed;
1178 } 1179 }
1179 1180
1180 writel(0x0L, ctrl->hpc_reg + LED_CONTROL); 1181 writel(0x0L, ctrl->hpc_reg + LED_CONTROL);
@@ -1229,8 +1230,8 @@ static u8 set_controller_speed(struct controller *ctrl, u8 adapter_speed, u8 hp_
1229 pci_write_config_byte(ctrl->pci_dev, 0x43, reg); 1230 pci_write_config_byte(ctrl->pci_dev, 0x43, reg);
1230 1231
1231 /* Only if mode change...*/ 1232 /* Only if mode change...*/
1232 if (((ctrl->speed == PCI_SPEED_66MHz) && (adapter_speed == PCI_SPEED_66MHz_PCIX)) || 1233 if (((bus->cur_bus_speed == PCI_SPEED_66MHz) && (adapter_speed == PCI_SPEED_66MHz_PCIX)) ||
1233 ((ctrl->speed == PCI_SPEED_66MHz_PCIX) && (adapter_speed == PCI_SPEED_66MHz))) 1234 ((bus->cur_bus_speed == PCI_SPEED_66MHz_PCIX) && (adapter_speed == PCI_SPEED_66MHz)))
1234 set_SOGO(ctrl); 1235 set_SOGO(ctrl);
1235 1236
1236 wait_for_ctrl_irq(ctrl); 1237 wait_for_ctrl_irq(ctrl);
@@ -1243,7 +1244,7 @@ static u8 set_controller_speed(struct controller *ctrl, u8 adapter_speed, u8 hp_
1243 set_SOGO(ctrl); 1244 set_SOGO(ctrl);
1244 wait_for_ctrl_irq(ctrl); 1245 wait_for_ctrl_irq(ctrl);
1245 1246
1246 ctrl->speed = adapter_speed; 1247 bus->cur_bus_speed = adapter_speed;
1247 slot = cpqhp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset); 1248 slot = cpqhp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);
1248 1249
1249 info("Successfully changed frequency/mode for adapter in slot %d\n", 1250 info("Successfully changed frequency/mode for adapter in slot %d\n",
@@ -1269,6 +1270,7 @@ static u8 set_controller_speed(struct controller *ctrl, u8 adapter_speed, u8 hp_
1269 */ 1270 */
1270static u32 board_replaced(struct pci_func *func, struct controller *ctrl) 1271static u32 board_replaced(struct pci_func *func, struct controller *ctrl)
1271{ 1272{
1273 struct pci_bus *bus = ctrl->pci_bus;
1272 u8 hp_slot; 1274 u8 hp_slot;
1273 u8 temp_byte; 1275 u8 temp_byte;
1274 u8 adapter_speed; 1276 u8 adapter_speed;
@@ -1309,7 +1311,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl)
1309 wait_for_ctrl_irq (ctrl); 1311 wait_for_ctrl_irq (ctrl);
1310 1312
1311 adapter_speed = get_adapter_speed(ctrl, hp_slot); 1313 adapter_speed = get_adapter_speed(ctrl, hp_slot);
1312 if (ctrl->speed != adapter_speed) 1314 if (bus->cur_bus_speed != adapter_speed)
1313 if (set_controller_speed(ctrl, adapter_speed, hp_slot)) 1315 if (set_controller_speed(ctrl, adapter_speed, hp_slot))
1314 rc = WRONG_BUS_FREQUENCY; 1316 rc = WRONG_BUS_FREQUENCY;
1315 1317
@@ -1426,6 +1428,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl)
1426 u32 temp_register = 0xFFFFFFFF; 1428 u32 temp_register = 0xFFFFFFFF;
1427 u32 rc = 0; 1429 u32 rc = 0;
1428 struct pci_func *new_slot = NULL; 1430 struct pci_func *new_slot = NULL;
1431 struct pci_bus *bus = ctrl->pci_bus;
1429 struct slot *p_slot; 1432 struct slot *p_slot;
1430 struct resource_lists res_lists; 1433 struct resource_lists res_lists;
1431 1434
@@ -1456,7 +1459,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl)
1456 wait_for_ctrl_irq (ctrl); 1459 wait_for_ctrl_irq (ctrl);
1457 1460
1458 adapter_speed = get_adapter_speed(ctrl, hp_slot); 1461 adapter_speed = get_adapter_speed(ctrl, hp_slot);
1459 if (ctrl->speed != adapter_speed) 1462 if (bus->cur_bus_speed != adapter_speed)
1460 if (set_controller_speed(ctrl, adapter_speed, hp_slot)) 1463 if (set_controller_speed(ctrl, adapter_speed, hp_slot))
1461 rc = WRONG_BUS_FREQUENCY; 1464 rc = WRONG_BUS_FREQUENCY;
1462 1465
diff --git a/drivers/pci/hotplug/ibmphp_core.c b/drivers/pci/hotplug/ibmphp_core.c
index 7485ffda950c..d934dd4fa873 100644
--- a/drivers/pci/hotplug/ibmphp_core.c
+++ b/drivers/pci/hotplug/ibmphp_core.c
@@ -395,89 +395,40 @@ static int get_adapter_present(struct hotplug_slot *hotplug_slot, u8 * value)
395 return rc; 395 return rc;
396} 396}
397 397
398static int get_max_bus_speed(struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value) 398static int get_max_bus_speed(struct slot *slot)
399{ 399{
400 int rc = -ENODEV; 400 int rc;
401 struct slot *pslot;
402 u8 mode = 0; 401 u8 mode = 0;
402 enum pci_bus_speed speed;
403 struct pci_bus *bus = slot->hotplug_slot->pci_slot->bus;
403 404
404 debug("%s - Entry hotplug_slot[%p] pvalue[%p]\n", __func__, 405 debug("%s - Entry slot[%p]\n", __func__, slot);
405 hotplug_slot, value);
406 406
407 ibmphp_lock_operations(); 407 ibmphp_lock_operations();
408 408 mode = slot->supported_bus_mode;
409 if (hotplug_slot) { 409 speed = slot->supported_speed;
410 pslot = hotplug_slot->private;
411 if (pslot) {
412 rc = 0;
413 mode = pslot->supported_bus_mode;
414 *value = pslot->supported_speed;
415 switch (*value) {
416 case BUS_SPEED_33:
417 break;
418 case BUS_SPEED_66:
419 if (mode == BUS_MODE_PCIX)
420 *value += 0x01;
421 break;
422 case BUS_SPEED_100:
423 case BUS_SPEED_133:
424 *value = pslot->supported_speed + 0x01;
425 break;
426 default:
427 /* Note (will need to change): there would be soon 256, 512 also */
428 rc = -ENODEV;
429 }
430 }
431 }
432
433 ibmphp_unlock_operations(); 410 ibmphp_unlock_operations();
434 debug("%s - Exit rc[%d] value[%x]\n", __func__, rc, *value);
435 return rc;
436}
437 411
438static int get_cur_bus_speed(struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value) 412 switch (speed) {
439{ 413 case BUS_SPEED_33:
440 int rc = -ENODEV; 414 break;
441 struct slot *pslot; 415 case BUS_SPEED_66:
442 u8 mode = 0; 416 if (mode == BUS_MODE_PCIX)
443 417 speed += 0x01;
444 debug("%s - Entry hotplug_slot[%p] pvalue[%p]\n", __func__, 418 break;
445 hotplug_slot, value); 419 case BUS_SPEED_100:
446 420 case BUS_SPEED_133:
447 ibmphp_lock_operations(); 421 speed += 0x01;
448 422 break;
449 if (hotplug_slot) { 423 default:
450 pslot = hotplug_slot->private; 424 /* Note (will need to change): there would be soon 256, 512 also */
451 if (pslot) { 425 rc = -ENODEV;
452 rc = get_cur_bus_info(&pslot);
453 if (!rc) {
454 mode = pslot->bus_on->current_bus_mode;
455 *value = pslot->bus_on->current_speed;
456 switch (*value) {
457 case BUS_SPEED_33:
458 break;
459 case BUS_SPEED_66:
460 if (mode == BUS_MODE_PCIX)
461 *value += 0x01;
462 else if (mode == BUS_MODE_PCI)
463 ;
464 else
465 *value = PCI_SPEED_UNKNOWN;
466 break;
467 case BUS_SPEED_100:
468 case BUS_SPEED_133:
469 *value += 0x01;
470 break;
471 default:
472 /* Note of change: there would also be 256, 512 soon */
473 rc = -ENODEV;
474 }
475 }
476 }
477 } 426 }
478 427
479 ibmphp_unlock_operations(); 428 if (!rc)
480 debug("%s - Exit rc[%d] value[%x]\n", __func__, rc, *value); 429 bus->max_bus_speed = speed;
430
431 debug("%s - Exit rc[%d] speed[%x]\n", __func__, rc, speed);
481 return rc; 432 return rc;
482} 433}
483 434
@@ -572,6 +523,7 @@ static int __init init_ops(void)
572 if (slot_cur->bus_on->current_speed == 0xFF) 523 if (slot_cur->bus_on->current_speed == 0xFF)
573 if (get_cur_bus_info(&slot_cur)) 524 if (get_cur_bus_info(&slot_cur))
574 return -1; 525 return -1;
526 get_max_bus_speed(slot_cur);
575 527
576 if (slot_cur->ctrl->options == 0xFF) 528 if (slot_cur->ctrl->options == 0xFF)
577 if (get_hpc_options(slot_cur, &slot_cur->ctrl->options)) 529 if (get_hpc_options(slot_cur, &slot_cur->ctrl->options))
@@ -655,6 +607,7 @@ static int validate(struct slot *slot_cur, int opn)
655int ibmphp_update_slot_info(struct slot *slot_cur) 607int ibmphp_update_slot_info(struct slot *slot_cur)
656{ 608{
657 struct hotplug_slot_info *info; 609 struct hotplug_slot_info *info;
610 struct pci_bus *bus = slot_cur->hotplug_slot->pci_slot->bus;
658 int rc; 611 int rc;
659 u8 bus_speed; 612 u8 bus_speed;
660 u8 mode; 613 u8 mode;
@@ -700,8 +653,7 @@ int ibmphp_update_slot_info(struct slot *slot_cur)
700 bus_speed = PCI_SPEED_UNKNOWN; 653 bus_speed = PCI_SPEED_UNKNOWN;
701 } 654 }
702 655
703 info->cur_bus_speed = bus_speed; 656 bus->cur_bus_speed = bus_speed;
704 info->max_bus_speed = slot_cur->hotplug_slot->info->max_bus_speed;
705 // To do: bus_names 657 // To do: bus_names
706 658
707 rc = pci_hp_change_slot_info(slot_cur->hotplug_slot, info); 659 rc = pci_hp_change_slot_info(slot_cur->hotplug_slot, info);
@@ -1326,8 +1278,6 @@ struct hotplug_slot_ops ibmphp_hotplug_slot_ops = {
1326 .get_attention_status = get_attention_status, 1278 .get_attention_status = get_attention_status,
1327 .get_latch_status = get_latch_status, 1279 .get_latch_status = get_latch_status,
1328 .get_adapter_status = get_adapter_present, 1280 .get_adapter_status = get_adapter_present,
1329 .get_max_bus_speed = get_max_bus_speed,
1330 .get_cur_bus_speed = get_cur_bus_speed,
1331/* .get_max_adapter_speed = get_max_adapter_speed, 1281/* .get_max_adapter_speed = get_max_adapter_speed,
1332 .get_bus_name_status = get_bus_name, 1282 .get_bus_name_status = get_bus_name,
1333*/ 1283*/
diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c
index 38183a534b65..728b119f71ad 100644
--- a/drivers/pci/hotplug/pci_hotplug_core.c
+++ b/drivers/pci/hotplug/pci_hotplug_core.c
@@ -64,32 +64,6 @@ static int debug;
64static LIST_HEAD(pci_hotplug_slot_list); 64static LIST_HEAD(pci_hotplug_slot_list);
65static DEFINE_MUTEX(pci_hp_mutex); 65static DEFINE_MUTEX(pci_hp_mutex);
66 66
67/* these strings match up with the values in pci_bus_speed */
68static char *pci_bus_speed_strings[] = {
69 "33 MHz PCI", /* 0x00 */
70 "66 MHz PCI", /* 0x01 */
71 "66 MHz PCI-X", /* 0x02 */
72 "100 MHz PCI-X", /* 0x03 */
73 "133 MHz PCI-X", /* 0x04 */
74 NULL, /* 0x05 */
75 NULL, /* 0x06 */
76 NULL, /* 0x07 */
77 NULL, /* 0x08 */
78 "66 MHz PCI-X 266", /* 0x09 */
79 "100 MHz PCI-X 266", /* 0x0a */
80 "133 MHz PCI-X 266", /* 0x0b */
81 NULL, /* 0x0c */
82 NULL, /* 0x0d */
83 NULL, /* 0x0e */
84 NULL, /* 0x0f */
85 NULL, /* 0x10 */
86 "66 MHz PCI-X 533", /* 0x11 */
87 "100 MHz PCI-X 533", /* 0x12 */
88 "133 MHz PCI-X 533", /* 0x13 */
89 "2.5 GT/s PCIe", /* 0x14 */
90 "5.0 GT/s PCIe", /* 0x15 */
91};
92
93#ifdef CONFIG_HOTPLUG_PCI_CPCI 67#ifdef CONFIG_HOTPLUG_PCI_CPCI
94extern int cpci_hotplug_init(int debug); 68extern int cpci_hotplug_init(int debug);
95extern void cpci_hotplug_exit(void); 69extern void cpci_hotplug_exit(void);
@@ -118,8 +92,6 @@ GET_STATUS(power_status, u8)
118GET_STATUS(attention_status, u8) 92GET_STATUS(attention_status, u8)
119GET_STATUS(latch_status, u8) 93GET_STATUS(latch_status, u8)
120GET_STATUS(adapter_status, u8) 94GET_STATUS(adapter_status, u8)
121GET_STATUS(max_bus_speed, enum pci_bus_speed)
122GET_STATUS(cur_bus_speed, enum pci_bus_speed)
123 95
124static ssize_t power_read_file(struct pci_slot *slot, char *buf) 96static ssize_t power_read_file(struct pci_slot *slot, char *buf)
125{ 97{
@@ -263,60 +235,6 @@ static struct pci_slot_attribute hotplug_slot_attr_presence = {
263 .show = presence_read_file, 235 .show = presence_read_file,
264}; 236};
265 237
266static char *unknown_speed = "Unknown bus speed";
267
268static ssize_t max_bus_speed_read_file(struct pci_slot *slot, char *buf)
269{
270 char *speed_string;
271 int retval;
272 enum pci_bus_speed value;
273
274 retval = get_max_bus_speed(slot->hotplug, &value);
275 if (retval)
276 goto exit;
277
278 if (value == PCI_SPEED_UNKNOWN)
279 speed_string = unknown_speed;
280 else
281 speed_string = pci_bus_speed_strings[value];
282
283 retval = sprintf (buf, "%s\n", speed_string);
284
285exit:
286 return retval;
287}
288
289static struct pci_slot_attribute hotplug_slot_attr_max_bus_speed = {
290 .attr = {.name = "max_bus_speed", .mode = S_IFREG | S_IRUGO},
291 .show = max_bus_speed_read_file,
292};
293
294static ssize_t cur_bus_speed_read_file(struct pci_slot *slot, char *buf)
295{
296 char *speed_string;
297 int retval;
298 enum pci_bus_speed value;
299
300 retval = get_cur_bus_speed(slot->hotplug, &value);
301 if (retval)
302 goto exit;
303
304 if (value == PCI_SPEED_UNKNOWN)
305 speed_string = unknown_speed;
306 else
307 speed_string = pci_bus_speed_strings[value];
308
309 retval = sprintf (buf, "%s\n", speed_string);
310
311exit:
312 return retval;
313}
314
315static struct pci_slot_attribute hotplug_slot_attr_cur_bus_speed = {
316 .attr = {.name = "cur_bus_speed", .mode = S_IFREG | S_IRUGO},
317 .show = cur_bus_speed_read_file,
318};
319
320static ssize_t test_write_file(struct pci_slot *pci_slot, const char *buf, 238static ssize_t test_write_file(struct pci_slot *pci_slot, const char *buf,
321 size_t count) 239 size_t count)
322{ 240{
@@ -391,26 +309,6 @@ static bool has_adapter_file(struct pci_slot *pci_slot)
391 return false; 309 return false;
392} 310}
393 311
394static bool has_max_bus_speed_file(struct pci_slot *pci_slot)
395{
396 struct hotplug_slot *slot = pci_slot->hotplug;
397 if ((!slot) || (!slot->ops))
398 return false;
399 if (slot->ops->get_max_bus_speed)
400 return true;
401 return false;
402}
403
404static bool has_cur_bus_speed_file(struct pci_slot *pci_slot)
405{
406 struct hotplug_slot *slot = pci_slot->hotplug;
407 if ((!slot) || (!slot->ops))
408 return false;
409 if (slot->ops->get_cur_bus_speed)
410 return true;
411 return false;
412}
413
414static bool has_test_file(struct pci_slot *pci_slot) 312static bool has_test_file(struct pci_slot *pci_slot)
415{ 313{
416 struct hotplug_slot *slot = pci_slot->hotplug; 314 struct hotplug_slot *slot = pci_slot->hotplug;
@@ -456,20 +354,6 @@ static int fs_add_slot(struct pci_slot *slot)
456 goto exit_adapter; 354 goto exit_adapter;
457 } 355 }
458 356
459 if (has_max_bus_speed_file(slot)) {
460 retval = sysfs_create_file(&slot->kobj,
461 &hotplug_slot_attr_max_bus_speed.attr);
462 if (retval)
463 goto exit_max_speed;
464 }
465
466 if (has_cur_bus_speed_file(slot)) {
467 retval = sysfs_create_file(&slot->kobj,
468 &hotplug_slot_attr_cur_bus_speed.attr);
469 if (retval)
470 goto exit_cur_speed;
471 }
472
473 if (has_test_file(slot)) { 357 if (has_test_file(slot)) {
474 retval = sysfs_create_file(&slot->kobj, 358 retval = sysfs_create_file(&slot->kobj,
475 &hotplug_slot_attr_test.attr); 359 &hotplug_slot_attr_test.attr);
@@ -480,14 +364,6 @@ static int fs_add_slot(struct pci_slot *slot)
480 goto exit; 364 goto exit;
481 365
482exit_test: 366exit_test:
483 if (has_cur_bus_speed_file(slot))
484 sysfs_remove_file(&slot->kobj,
485 &hotplug_slot_attr_cur_bus_speed.attr);
486exit_cur_speed:
487 if (has_max_bus_speed_file(slot))
488 sysfs_remove_file(&slot->kobj,
489 &hotplug_slot_attr_max_bus_speed.attr);
490exit_max_speed:
491 if (has_adapter_file(slot)) 367 if (has_adapter_file(slot))
492 sysfs_remove_file(&slot->kobj, 368 sysfs_remove_file(&slot->kobj,
493 &hotplug_slot_attr_presence.attr); 369 &hotplug_slot_attr_presence.attr);
@@ -523,14 +399,6 @@ static void fs_remove_slot(struct pci_slot *slot)
523 sysfs_remove_file(&slot->kobj, 399 sysfs_remove_file(&slot->kobj,
524 &hotplug_slot_attr_presence.attr); 400 &hotplug_slot_attr_presence.attr);
525 401
526 if (has_max_bus_speed_file(slot))
527 sysfs_remove_file(&slot->kobj,
528 &hotplug_slot_attr_max_bus_speed.attr);
529
530 if (has_cur_bus_speed_file(slot))
531 sysfs_remove_file(&slot->kobj,
532 &hotplug_slot_attr_cur_bus_speed.attr);
533
534 if (has_test_file(slot)) 402 if (has_test_file(slot))
535 sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_test.attr); 403 sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_test.attr);
536 404
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index 5674b2075bdc..920f820edf87 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -69,8 +69,6 @@ static int get_power_status (struct hotplug_slot *slot, u8 *value);
69static int get_attention_status (struct hotplug_slot *slot, u8 *value); 69static int get_attention_status (struct hotplug_slot *slot, u8 *value);
70static int get_latch_status (struct hotplug_slot *slot, u8 *value); 70static int get_latch_status (struct hotplug_slot *slot, u8 *value);
71static int get_adapter_status (struct hotplug_slot *slot, u8 *value); 71static int get_adapter_status (struct hotplug_slot *slot, u8 *value);
72static int get_max_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value);
73static int get_cur_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value);
74 72
75/** 73/**
76 * release_slot - free up the memory used by a slot 74 * release_slot - free up the memory used by a slot
@@ -113,8 +111,6 @@ static int init_slot(struct controller *ctrl)
113 ops->disable_slot = disable_slot; 111 ops->disable_slot = disable_slot;
114 ops->get_power_status = get_power_status; 112 ops->get_power_status = get_power_status;
115 ops->get_adapter_status = get_adapter_status; 113 ops->get_adapter_status = get_adapter_status;
116 ops->get_max_bus_speed = get_max_bus_speed;
117 ops->get_cur_bus_speed = get_cur_bus_speed;
118 if (MRL_SENS(ctrl)) 114 if (MRL_SENS(ctrl))
119 ops->get_latch_status = get_latch_status; 115 ops->get_latch_status = get_latch_status;
120 if (ATTN_LED(ctrl)) { 116 if (ATTN_LED(ctrl)) {
@@ -227,27 +223,6 @@ static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value)
227 return pciehp_get_adapter_status(slot, value); 223 return pciehp_get_adapter_status(slot, value);
228} 224}
229 225
230static int get_max_bus_speed(struct hotplug_slot *hotplug_slot,
231 enum pci_bus_speed *value)
232{
233 struct slot *slot = hotplug_slot->private;
234
235 ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
236 __func__, slot_name(slot));
237
238 return pciehp_get_max_link_speed(slot, value);
239}
240
241static int get_cur_bus_speed(struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value)
242{
243 struct slot *slot = hotplug_slot->private;
244
245 ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
246 __func__, slot_name(slot));
247
248 return pciehp_get_cur_link_speed(slot, value);
249}
250
251static int pciehp_probe(struct pcie_device *dev) 226static int pciehp_probe(struct pcie_device *dev)
252{ 227{
253 int rc; 228 int rc;
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 6744ca1d8d01..40b48f569b1e 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -492,6 +492,7 @@ int pciehp_power_on_slot(struct slot * slot)
492 u16 slot_cmd; 492 u16 slot_cmd;
493 u16 cmd_mask; 493 u16 cmd_mask;
494 u16 slot_status; 494 u16 slot_status;
495 u16 lnk_status;
495 int retval = 0; 496 int retval = 0;
496 497
497 /* Clear sticky power-fault bit from previous power failures */ 498 /* Clear sticky power-fault bit from previous power failures */
@@ -523,6 +524,14 @@ int pciehp_power_on_slot(struct slot * slot)
523 ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n", __func__, 524 ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n", __func__,
524 pci_pcie_cap(ctrl->pcie->port) + PCI_EXP_SLTCTL, slot_cmd); 525 pci_pcie_cap(ctrl->pcie->port) + PCI_EXP_SLTCTL, slot_cmd);
525 526
527 retval = pciehp_readw(ctrl, PCI_EXP_LNKSTA, &lnk_status);
528 if (retval) {
529 ctrl_err(ctrl, "%s: Cannot read LNKSTA register\n",
530 __func__);
531 return retval;
532 }
533 pcie_update_link_speed(ctrl->pcie->port->subordinate, lnk_status);
534
526 return retval; 535 return retval;
527} 536}
528 537
@@ -610,37 +619,6 @@ static irqreturn_t pcie_isr(int irq, void *dev_id)
610 return IRQ_HANDLED; 619 return IRQ_HANDLED;
611} 620}
612 621
613int pciehp_get_max_link_speed(struct slot *slot, enum pci_bus_speed *value)
614{
615 struct controller *ctrl = slot->ctrl;
616 enum pci_bus_speed lnk_speed;
617 u32 lnk_cap;
618 int retval = 0;
619
620 retval = pciehp_readl(ctrl, PCI_EXP_LNKCAP, &lnk_cap);
621 if (retval) {
622 ctrl_err(ctrl, "%s: Cannot read LNKCAP register\n", __func__);
623 return retval;
624 }
625
626 switch (lnk_cap & 0x000F) {
627 case 1:
628 lnk_speed = PCIE_SPEED_2_5GT;
629 break;
630 case 2:
631 lnk_speed = PCIE_SPEED_5_0GT;
632 break;
633 default:
634 lnk_speed = PCI_SPEED_UNKNOWN;
635 break;
636 }
637
638 *value = lnk_speed;
639 ctrl_dbg(ctrl, "Max link speed = %d\n", lnk_speed);
640
641 return retval;
642}
643
644int pciehp_get_max_lnk_width(struct slot *slot, 622int pciehp_get_max_lnk_width(struct slot *slot,
645 enum pcie_link_width *value) 623 enum pcie_link_width *value)
646{ 624{
@@ -691,38 +669,6 @@ int pciehp_get_max_lnk_width(struct slot *slot,
691 return retval; 669 return retval;
692} 670}
693 671
694int pciehp_get_cur_link_speed(struct slot *slot, enum pci_bus_speed *value)
695{
696 struct controller *ctrl = slot->ctrl;
697 enum pci_bus_speed lnk_speed = PCI_SPEED_UNKNOWN;
698 int retval = 0;
699 u16 lnk_status;
700
701 retval = pciehp_readw(ctrl, PCI_EXP_LNKSTA, &lnk_status);
702 if (retval) {
703 ctrl_err(ctrl, "%s: Cannot read LNKSTATUS register\n",
704 __func__);
705 return retval;
706 }
707
708 switch (lnk_status & PCI_EXP_LNKSTA_CLS) {
709 case 1:
710 lnk_speed = PCIE_SPEED_2_5GT;
711 break;
712 case 2:
713 lnk_speed = PCIE_SPEED_5_0GT;
714 break;
715 default:
716 lnk_speed = PCI_SPEED_UNKNOWN;
717 break;
718 }
719
720 *value = lnk_speed;
721 ctrl_dbg(ctrl, "Current link speed = %d\n", lnk_speed);
722
723 return retval;
724}
725
726int pciehp_get_cur_lnk_width(struct slot *slot, 672int pciehp_get_cur_lnk_width(struct slot *slot,
727 enum pcie_link_width *value) 673 enum pcie_link_width *value)
728{ 674{
diff --git a/drivers/pci/hotplug/rpaphp_core.c b/drivers/pci/hotplug/rpaphp_core.c
index c159223389ec..b14e5e66a92c 100644
--- a/drivers/pci/hotplug/rpaphp_core.c
+++ b/drivers/pci/hotplug/rpaphp_core.c
@@ -130,10 +130,9 @@ static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 * value)
130 return 0; 130 return 0;
131} 131}
132 132
133static int get_max_bus_speed(struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value) 133static enum pci_bus_speed get_max_bus_speed(struct slot *slot)
134{ 134{
135 struct slot *slot = (struct slot *)hotplug_slot->private; 135 enum pci_bus_speed speed;
136
137 switch (slot->type) { 136 switch (slot->type) {
138 case 1: 137 case 1:
139 case 2: 138 case 2:
@@ -141,30 +140,30 @@ static int get_max_bus_speed(struct hotplug_slot *hotplug_slot, enum pci_bus_spe
141 case 4: 140 case 4:
142 case 5: 141 case 5:
143 case 6: 142 case 6:
144 *value = PCI_SPEED_33MHz; /* speed for case 1-6 */ 143 speed = PCI_SPEED_33MHz; /* speed for case 1-6 */
145 break; 144 break;
146 case 7: 145 case 7:
147 case 8: 146 case 8:
148 *value = PCI_SPEED_66MHz; 147 speed = PCI_SPEED_66MHz;
149 break; 148 break;
150 case 11: 149 case 11:
151 case 14: 150 case 14:
152 *value = PCI_SPEED_66MHz_PCIX; 151 speed = PCI_SPEED_66MHz_PCIX;
153 break; 152 break;
154 case 12: 153 case 12:
155 case 15: 154 case 15:
156 *value = PCI_SPEED_100MHz_PCIX; 155 speed = PCI_SPEED_100MHz_PCIX;
157 break; 156 break;
158 case 13: 157 case 13:
159 case 16: 158 case 16:
160 *value = PCI_SPEED_133MHz_PCIX; 159 speed = PCI_SPEED_133MHz_PCIX;
161 break; 160 break;
162 default: 161 default:
163 *value = PCI_SPEED_UNKNOWN; 162 speed = PCI_SPEED_UNKNOWN;
164 break; 163 break;
165
166 } 164 }
167 return 0; 165
166 return speed;
168} 167}
169 168
170static int get_children_props(struct device_node *dn, const int **drc_indexes, 169static int get_children_props(struct device_node *dn, const int **drc_indexes,
@@ -408,6 +407,8 @@ static int enable_slot(struct hotplug_slot *hotplug_slot)
408 slot->state = NOT_VALID; 407 slot->state = NOT_VALID;
409 return -EINVAL; 408 return -EINVAL;
410 } 409 }
410
411 slot->bus->max_bus_speed = get_max_bus_speed(slot);
411 return 0; 412 return 0;
412} 413}
413 414
diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h
index 8e210cd76e55..d2627e1c3ac1 100644
--- a/drivers/pci/hotplug/shpchp.h
+++ b/drivers/pci/hotplug/shpchp.h
@@ -333,8 +333,6 @@ struct hpc_ops {
333 int (*set_attention_status)(struct slot *slot, u8 status); 333 int (*set_attention_status)(struct slot *slot, u8 status);
334 int (*get_latch_status)(struct slot *slot, u8 *status); 334 int (*get_latch_status)(struct slot *slot, u8 *status);
335 int (*get_adapter_status)(struct slot *slot, u8 *status); 335 int (*get_adapter_status)(struct slot *slot, u8 *status);
336 int (*get_max_bus_speed)(struct slot *slot, enum pci_bus_speed *speed);
337 int (*get_cur_bus_speed)(struct slot *slot, enum pci_bus_speed *speed);
338 int (*get_adapter_speed)(struct slot *slot, enum pci_bus_speed *speed); 336 int (*get_adapter_speed)(struct slot *slot, enum pci_bus_speed *speed);
339 int (*get_mode1_ECC_cap)(struct slot *slot, u8 *mode); 337 int (*get_mode1_ECC_cap)(struct slot *slot, u8 *mode);
340 int (*get_prog_int)(struct slot *slot, u8 *prog_int); 338 int (*get_prog_int)(struct slot *slot, u8 *prog_int);
diff --git a/drivers/pci/hotplug/shpchp_core.c b/drivers/pci/hotplug/shpchp_core.c
index 8a520a3d0f59..a5062297f488 100644
--- a/drivers/pci/hotplug/shpchp_core.c
+++ b/drivers/pci/hotplug/shpchp_core.c
@@ -65,8 +65,6 @@ static int get_power_status (struct hotplug_slot *slot, u8 *value);
65static int get_attention_status (struct hotplug_slot *slot, u8 *value); 65static int get_attention_status (struct hotplug_slot *slot, u8 *value);
66static int get_latch_status (struct hotplug_slot *slot, u8 *value); 66static int get_latch_status (struct hotplug_slot *slot, u8 *value);
67static int get_adapter_status (struct hotplug_slot *slot, u8 *value); 67static int get_adapter_status (struct hotplug_slot *slot, u8 *value);
68static int get_max_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value);
69static int get_cur_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value);
70 68
71static struct hotplug_slot_ops shpchp_hotplug_slot_ops = { 69static struct hotplug_slot_ops shpchp_hotplug_slot_ops = {
72 .set_attention_status = set_attention_status, 70 .set_attention_status = set_attention_status,
@@ -76,8 +74,6 @@ static struct hotplug_slot_ops shpchp_hotplug_slot_ops = {
76 .get_attention_status = get_attention_status, 74 .get_attention_status = get_attention_status,
77 .get_latch_status = get_latch_status, 75 .get_latch_status = get_latch_status,
78 .get_adapter_status = get_adapter_status, 76 .get_adapter_status = get_adapter_status,
79 .get_max_bus_speed = get_max_bus_speed,
80 .get_cur_bus_speed = get_cur_bus_speed,
81}; 77};
82 78
83/** 79/**
@@ -279,37 +275,6 @@ static int get_adapter_status (struct hotplug_slot *hotplug_slot, u8 *value)
279 return 0; 275 return 0;
280} 276}
281 277
282static int get_max_bus_speed(struct hotplug_slot *hotplug_slot,
283 enum pci_bus_speed *value)
284{
285 struct slot *slot = get_slot(hotplug_slot);
286 int retval;
287
288 ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
289 __func__, slot_name(slot));
290
291 retval = slot->hpc_ops->get_max_bus_speed(slot, value);
292 if (retval < 0)
293 *value = PCI_SPEED_UNKNOWN;
294
295 return 0;
296}
297
298static int get_cur_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value)
299{
300 struct slot *slot = get_slot(hotplug_slot);
301 int retval;
302
303 ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
304 __func__, slot_name(slot));
305
306 retval = slot->hpc_ops->get_cur_bus_speed(slot, value);
307 if (retval < 0)
308 *value = PCI_SPEED_UNKNOWN;
309
310 return 0;
311}
312
313static int is_shpc_capable(struct pci_dev *dev) 278static int is_shpc_capable(struct pci_dev *dev)
314{ 279{
315 if ((dev->vendor == PCI_VENDOR_ID_AMD) || (dev->device == 280 if ((dev->vendor == PCI_VENDOR_ID_AMD) || (dev->device ==
diff --git a/drivers/pci/hotplug/shpchp_ctrl.c b/drivers/pci/hotplug/shpchp_ctrl.c
index b8ab2796e66a..179b1c1cb99b 100644
--- a/drivers/pci/hotplug/shpchp_ctrl.c
+++ b/drivers/pci/hotplug/shpchp_ctrl.c
@@ -285,17 +285,8 @@ static int board_added(struct slot *p_slot)
285 return WRONG_BUS_FREQUENCY; 285 return WRONG_BUS_FREQUENCY;
286 } 286 }
287 287
288 rc = p_slot->hpc_ops->get_cur_bus_speed(p_slot, &bsp); 288 bsp = ctrl->pci_dev->bus->cur_bus_speed;
289 if (rc) { 289 msp = ctrl->pci_dev->bus->max_bus_speed;
290 ctrl_err(ctrl, "Can't get bus operation speed\n");
291 return WRONG_BUS_FREQUENCY;
292 }
293
294 rc = p_slot->hpc_ops->get_max_bus_speed(p_slot, &msp);
295 if (rc) {
296 ctrl_err(ctrl, "Can't get max bus operation speed\n");
297 msp = bsp;
298 }
299 290
300 /* Check if there are other slots or devices on the same bus */ 291 /* Check if there are other slots or devices on the same bus */
301 if (!list_empty(&ctrl->pci_dev->subordinate->devices)) 292 if (!list_empty(&ctrl->pci_dev->subordinate->devices))
diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c
index 86dc39847769..5f5e8d2e3552 100644
--- a/drivers/pci/hotplug/shpchp_hpc.c
+++ b/drivers/pci/hotplug/shpchp_hpc.c
@@ -660,6 +660,75 @@ static int hpc_slot_disable(struct slot * slot)
660 return retval; 660 return retval;
661} 661}
662 662
663static int shpc_get_cur_bus_speed(struct controller *ctrl)
664{
665 int retval = 0;
666 struct pci_bus *bus = ctrl->pci_dev->subordinate;
667 enum pci_bus_speed bus_speed = PCI_SPEED_UNKNOWN;
668 u16 sec_bus_reg = shpc_readw(ctrl, SEC_BUS_CONFIG);
669 u8 pi = shpc_readb(ctrl, PROG_INTERFACE);
670 u8 speed_mode = (pi == 2) ? (sec_bus_reg & 0xF) : (sec_bus_reg & 0x7);
671
672 if ((pi == 1) && (speed_mode > 4)) {
673 retval = -ENODEV;
674 goto out;
675 }
676
677 switch (speed_mode) {
678 case 0x0:
679 bus_speed = PCI_SPEED_33MHz;
680 break;
681 case 0x1:
682 bus_speed = PCI_SPEED_66MHz;
683 break;
684 case 0x2:
685 bus_speed = PCI_SPEED_66MHz_PCIX;
686 break;
687 case 0x3:
688 bus_speed = PCI_SPEED_100MHz_PCIX;
689 break;
690 case 0x4:
691 bus_speed = PCI_SPEED_133MHz_PCIX;
692 break;
693 case 0x5:
694 bus_speed = PCI_SPEED_66MHz_PCIX_ECC;
695 break;
696 case 0x6:
697 bus_speed = PCI_SPEED_100MHz_PCIX_ECC;
698 break;
699 case 0x7:
700 bus_speed = PCI_SPEED_133MHz_PCIX_ECC;
701 break;
702 case 0x8:
703 bus_speed = PCI_SPEED_66MHz_PCIX_266;
704 break;
705 case 0x9:
706 bus_speed = PCI_SPEED_100MHz_PCIX_266;
707 break;
708 case 0xa:
709 bus_speed = PCI_SPEED_133MHz_PCIX_266;
710 break;
711 case 0xb:
712 bus_speed = PCI_SPEED_66MHz_PCIX_533;
713 break;
714 case 0xc:
715 bus_speed = PCI_SPEED_100MHz_PCIX_533;
716 break;
717 case 0xd:
718 bus_speed = PCI_SPEED_133MHz_PCIX_533;
719 break;
720 default:
721 retval = -ENODEV;
722 break;
723 }
724
725 out:
726 bus->cur_bus_speed = bus_speed;
727 dbg("Current bus speed = %d\n", bus_speed);
728 return retval;
729}
730
731
663static int hpc_set_bus_speed_mode(struct slot * slot, enum pci_bus_speed value) 732static int hpc_set_bus_speed_mode(struct slot * slot, enum pci_bus_speed value)
664{ 733{
665 int retval; 734 int retval;
@@ -720,6 +789,8 @@ static int hpc_set_bus_speed_mode(struct slot * slot, enum pci_bus_speed value)
720 retval = shpc_write_cmd(slot, 0, cmd); 789 retval = shpc_write_cmd(slot, 0, cmd);
721 if (retval) 790 if (retval)
722 ctrl_err(ctrl, "%s: Write command failed!\n", __func__); 791 ctrl_err(ctrl, "%s: Write command failed!\n", __func__);
792 else
793 shpc_get_cur_bus_speed(ctrl);
723 794
724 return retval; 795 return retval;
725} 796}
@@ -803,10 +874,10 @@ static irqreturn_t shpc_isr(int irq, void *dev_id)
803 return IRQ_HANDLED; 874 return IRQ_HANDLED;
804} 875}
805 876
806static int hpc_get_max_bus_speed (struct slot *slot, enum pci_bus_speed *value) 877static int shpc_get_max_bus_speed(struct controller *ctrl)
807{ 878{
808 int retval = 0; 879 int retval = 0;
809 struct controller *ctrl = slot->ctrl; 880 struct pci_bus *bus = ctrl->pci_dev->subordinate;
810 enum pci_bus_speed bus_speed = PCI_SPEED_UNKNOWN; 881 enum pci_bus_speed bus_speed = PCI_SPEED_UNKNOWN;
811 u8 pi = shpc_readb(ctrl, PROG_INTERFACE); 882 u8 pi = shpc_readb(ctrl, PROG_INTERFACE);
812 u32 slot_avail1 = shpc_readl(ctrl, SLOT_AVAIL1); 883 u32 slot_avail1 = shpc_readl(ctrl, SLOT_AVAIL1);
@@ -842,79 +913,12 @@ static int hpc_get_max_bus_speed (struct slot *slot, enum pci_bus_speed *value)
842 retval = -ENODEV; 913 retval = -ENODEV;
843 } 914 }
844 915
845 *value = bus_speed; 916 bus->max_bus_speed = bus_speed;
846 ctrl_dbg(ctrl, "Max bus speed = %d\n", bus_speed); 917 ctrl_dbg(ctrl, "Max bus speed = %d\n", bus_speed);
847 918
848 return retval; 919 return retval;
849} 920}
850 921
851static int hpc_get_cur_bus_speed (struct slot *slot, enum pci_bus_speed *value)
852{
853 int retval = 0;
854 struct controller *ctrl = slot->ctrl;
855 enum pci_bus_speed bus_speed = PCI_SPEED_UNKNOWN;
856 u16 sec_bus_reg = shpc_readw(ctrl, SEC_BUS_CONFIG);
857 u8 pi = shpc_readb(ctrl, PROG_INTERFACE);
858 u8 speed_mode = (pi == 2) ? (sec_bus_reg & 0xF) : (sec_bus_reg & 0x7);
859
860 if ((pi == 1) && (speed_mode > 4)) {
861 *value = PCI_SPEED_UNKNOWN;
862 return -ENODEV;
863 }
864
865 switch (speed_mode) {
866 case 0x0:
867 *value = PCI_SPEED_33MHz;
868 break;
869 case 0x1:
870 *value = PCI_SPEED_66MHz;
871 break;
872 case 0x2:
873 *value = PCI_SPEED_66MHz_PCIX;
874 break;
875 case 0x3:
876 *value = PCI_SPEED_100MHz_PCIX;
877 break;
878 case 0x4:
879 *value = PCI_SPEED_133MHz_PCIX;
880 break;
881 case 0x5:
882 *value = PCI_SPEED_66MHz_PCIX_ECC;
883 break;
884 case 0x6:
885 *value = PCI_SPEED_100MHz_PCIX_ECC;
886 break;
887 case 0x7:
888 *value = PCI_SPEED_133MHz_PCIX_ECC;
889 break;
890 case 0x8:
891 *value = PCI_SPEED_66MHz_PCIX_266;
892 break;
893 case 0x9:
894 *value = PCI_SPEED_100MHz_PCIX_266;
895 break;
896 case 0xa:
897 *value = PCI_SPEED_133MHz_PCIX_266;
898 break;
899 case 0xb:
900 *value = PCI_SPEED_66MHz_PCIX_533;
901 break;
902 case 0xc:
903 *value = PCI_SPEED_100MHz_PCIX_533;
904 break;
905 case 0xd:
906 *value = PCI_SPEED_133MHz_PCIX_533;
907 break;
908 default:
909 *value = PCI_SPEED_UNKNOWN;
910 retval = -ENODEV;
911 break;
912 }
913
914 ctrl_dbg(ctrl, "Current bus speed = %d\n", bus_speed);
915 return retval;
916}
917
918static struct hpc_ops shpchp_hpc_ops = { 922static struct hpc_ops shpchp_hpc_ops = {
919 .power_on_slot = hpc_power_on_slot, 923 .power_on_slot = hpc_power_on_slot,
920 .slot_enable = hpc_slot_enable, 924 .slot_enable = hpc_slot_enable,
@@ -926,8 +930,6 @@ static struct hpc_ops shpchp_hpc_ops = {
926 .get_latch_status = hpc_get_latch_status, 930 .get_latch_status = hpc_get_latch_status,
927 .get_adapter_status = hpc_get_adapter_status, 931 .get_adapter_status = hpc_get_adapter_status,
928 932
929 .get_max_bus_speed = hpc_get_max_bus_speed,
930 .get_cur_bus_speed = hpc_get_cur_bus_speed,
931 .get_adapter_speed = hpc_get_adapter_speed, 933 .get_adapter_speed = hpc_get_adapter_speed,
932 .get_mode1_ECC_cap = hpc_get_mode1_ECC_cap, 934 .get_mode1_ECC_cap = hpc_get_mode1_ECC_cap,
933 .get_prog_int = hpc_get_prog_int, 935 .get_prog_int = hpc_get_prog_int,
@@ -1086,6 +1088,9 @@ int shpc_init(struct controller *ctrl, struct pci_dev *pdev)
1086 } 1088 }
1087 ctrl_dbg(ctrl, "HPC at %s irq=%x\n", pci_name(pdev), pdev->irq); 1089 ctrl_dbg(ctrl, "HPC at %s irq=%x\n", pci_name(pdev), pdev->irq);
1088 1090
1091 shpc_get_max_bus_speed(ctrl);
1092 shpc_get_cur_bus_speed(ctrl);
1093
1089 /* 1094 /*
1090 * If this is the first controller to be initialized, 1095 * If this is the first controller to be initialized,
1091 * initialize the shpchpd work queue 1096 * initialize the shpchpd work queue
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index dd64310a735e..51cf8982fec7 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -387,10 +387,37 @@ static struct pci_bus * pci_alloc_bus(void)
387 INIT_LIST_HEAD(&b->children); 387 INIT_LIST_HEAD(&b->children);
388 INIT_LIST_HEAD(&b->devices); 388 INIT_LIST_HEAD(&b->devices);
389 INIT_LIST_HEAD(&b->slots); 389 INIT_LIST_HEAD(&b->slots);
390 b->max_bus_speed = PCI_SPEED_UNKNOWN;
391 b->cur_bus_speed = PCI_SPEED_UNKNOWN;
390 } 392 }
391 return b; 393 return b;
392} 394}
393 395
396static unsigned char pcie_link_speed[] = {
397 PCI_SPEED_UNKNOWN, /* 0 */
398 PCIE_SPEED_2_5GT, /* 1 */
399 PCIE_SPEED_5_0GT, /* 2 */
400 PCI_SPEED_UNKNOWN, /* 3 */
401 PCI_SPEED_UNKNOWN, /* 4 */
402 PCI_SPEED_UNKNOWN, /* 5 */
403 PCI_SPEED_UNKNOWN, /* 6 */
404 PCI_SPEED_UNKNOWN, /* 7 */
405 PCI_SPEED_UNKNOWN, /* 8 */
406 PCI_SPEED_UNKNOWN, /* 9 */
407 PCI_SPEED_UNKNOWN, /* A */
408 PCI_SPEED_UNKNOWN, /* B */
409 PCI_SPEED_UNKNOWN, /* C */
410 PCI_SPEED_UNKNOWN, /* D */
411 PCI_SPEED_UNKNOWN, /* E */
412 PCI_SPEED_UNKNOWN /* F */
413};
414
415void pcie_update_link_speed(struct pci_bus *bus, u16 linksta)
416{
417 bus->cur_bus_speed = pcie_link_speed[linksta & 0xf];
418}
419EXPORT_SYMBOL_GPL(pcie_update_link_speed);
420
394static struct pci_bus *pci_alloc_child_bus(struct pci_bus *parent, 421static struct pci_bus *pci_alloc_child_bus(struct pci_bus *parent,
395 struct pci_dev *bridge, int busnr) 422 struct pci_dev *bridge, int busnr)
396{ 423{
diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c
index 8c02b6c53bdb..6f6b8d24786a 100644
--- a/drivers/pci/slot.c
+++ b/drivers/pci/slot.c
@@ -47,6 +47,54 @@ static ssize_t address_read_file(struct pci_slot *slot, char *buf)
47 slot->number); 47 slot->number);
48} 48}
49 49
50/* these strings match up with the values in pci_bus_speed */
51static char *pci_bus_speed_strings[] = {
52 "33 MHz PCI", /* 0x00 */
53 "66 MHz PCI", /* 0x01 */
54 "66 MHz PCI-X", /* 0x02 */
55 "100 MHz PCI-X", /* 0x03 */
56 "133 MHz PCI-X", /* 0x04 */
57 NULL, /* 0x05 */
58 NULL, /* 0x06 */
59 NULL, /* 0x07 */
60 NULL, /* 0x08 */
61 "66 MHz PCI-X 266", /* 0x09 */
62 "100 MHz PCI-X 266", /* 0x0a */
63 "133 MHz PCI-X 266", /* 0x0b */
64 NULL, /* 0x0c */
65 NULL, /* 0x0d */
66 NULL, /* 0x0e */
67 NULL, /* 0x0f */
68 NULL, /* 0x10 */
69 "66 MHz PCI-X 533", /* 0x11 */
70 "100 MHz PCI-X 533", /* 0x12 */
71 "133 MHz PCI-X 533", /* 0x13 */
72 "2.5 GT/s PCIe", /* 0x14 */
73 "5.0 GT/s PCIe", /* 0x15 */
74};
75
76static ssize_t bus_speed_read(enum pci_bus_speed speed, char *buf)
77{
78 const char *speed_string;
79
80 if (speed < ARRAY_SIZE(pci_bus_speed_strings))
81 speed_string = pci_bus_speed_strings[speed];
82 else
83 speed_string = "Unknown";
84
85 return sprintf(buf, "%s\n", speed_string);
86}
87
88static ssize_t max_speed_read_file(struct pci_slot *slot, char *buf)
89{
90 return bus_speed_read(slot->bus->max_bus_speed, buf);
91}
92
93static ssize_t cur_speed_read_file(struct pci_slot *slot, char *buf)
94{
95 return bus_speed_read(slot->bus->cur_bus_speed, buf);
96}
97
50static void pci_slot_release(struct kobject *kobj) 98static void pci_slot_release(struct kobject *kobj)
51{ 99{
52 struct pci_dev *dev; 100 struct pci_dev *dev;
@@ -66,9 +114,15 @@ static void pci_slot_release(struct kobject *kobj)
66 114
67static struct pci_slot_attribute pci_slot_attr_address = 115static struct pci_slot_attribute pci_slot_attr_address =
68 __ATTR(address, (S_IFREG | S_IRUGO), address_read_file, NULL); 116 __ATTR(address, (S_IFREG | S_IRUGO), address_read_file, NULL);
117static struct pci_slot_attribute pci_slot_attr_max_speed =
118 __ATTR(max_bus_speed, (S_IFREG | S_IRUGO), max_speed_read_file, NULL);
119static struct pci_slot_attribute pci_slot_attr_cur_speed =
120 __ATTR(cur_bus_speed, (S_IFREG | S_IRUGO), cur_speed_read_file, NULL);
69 121
70static struct attribute *pci_slot_default_attrs[] = { 122static struct attribute *pci_slot_default_attrs[] = {
71 &pci_slot_attr_address.attr, 123 &pci_slot_attr_address.attr,
124 &pci_slot_attr_max_speed.attr,
125 &pci_slot_attr_cur_speed.attr,
72 NULL, 126 NULL,
73}; 127};
74 128
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-15 04:08:42 -0500