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path: root/drivers/pci/hotplug/pciehp_hpc.c
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Diffstat (limited to 'drivers/pci/hotplug/pciehp_hpc.c')
-rw-r--r--drivers/pci/hotplug/pciehp_hpc.c329
1 files changed, 99 insertions, 230 deletions
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index b643ca13e4f1..71a8012886b0 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -42,42 +42,6 @@
static atomic_t pciehp_num_controllers = ATOMIC_INIT(0);
-struct ctrl_reg {
- u8 cap_id;
- u8 nxt_ptr;
- u16 cap_reg;
- u32 dev_cap;
- u16 dev_ctrl;
- u16 dev_status;
- u32 lnk_cap;
- u16 lnk_ctrl;
- u16 lnk_status;
- u32 slot_cap;
- u16 slot_ctrl;
- u16 slot_status;
- u16 root_ctrl;
- u16 rsvp;
- u32 root_status;
-} __attribute__ ((packed));
-
-/* offsets to the controller registers based on the above structure layout */
-enum ctrl_offsets {
- PCIECAPID = offsetof(struct ctrl_reg, cap_id),
- NXTCAPPTR = offsetof(struct ctrl_reg, nxt_ptr),
- CAPREG = offsetof(struct ctrl_reg, cap_reg),
- DEVCAP = offsetof(struct ctrl_reg, dev_cap),
- DEVCTRL = offsetof(struct ctrl_reg, dev_ctrl),
- DEVSTATUS = offsetof(struct ctrl_reg, dev_status),
- LNKCAP = offsetof(struct ctrl_reg, lnk_cap),
- LNKCTRL = offsetof(struct ctrl_reg, lnk_ctrl),
- LNKSTATUS = offsetof(struct ctrl_reg, lnk_status),
- SLOTCAP = offsetof(struct ctrl_reg, slot_cap),
- SLOTCTRL = offsetof(struct ctrl_reg, slot_ctrl),
- SLOTSTATUS = offsetof(struct ctrl_reg, slot_status),
- ROOTCTRL = offsetof(struct ctrl_reg, root_ctrl),
- ROOTSTATUS = offsetof(struct ctrl_reg, root_status),
-};
-
static inline int pciehp_readw(struct controller *ctrl, int reg, u16 *value)
{
struct pci_dev *dev = ctrl->pci_dev;
@@ -102,95 +66,9 @@ static inline int pciehp_writel(struct controller *ctrl, int reg, u32 value)
return pci_write_config_dword(dev, ctrl->cap_base + reg, value);
}
-/* Field definitions in PCI Express Capabilities Register */
-#define CAP_VER 0x000F
-#define DEV_PORT_TYPE 0x00F0
-#define SLOT_IMPL 0x0100
-#define MSG_NUM 0x3E00
-
-/* Device or Port Type */
-#define NAT_ENDPT 0x00
-#define LEG_ENDPT 0x01
-#define ROOT_PORT 0x04
-#define UP_STREAM 0x05
-#define DN_STREAM 0x06
-#define PCIE_PCI_BRDG 0x07
-#define PCI_PCIE_BRDG 0x10
-
-/* Field definitions in Device Capabilities Register */
-#define DATTN_BUTTN_PRSN 0x1000
-#define DATTN_LED_PRSN 0x2000
-#define DPWR_LED_PRSN 0x4000
-
-/* Field definitions in Link Capabilities Register */
-#define MAX_LNK_SPEED 0x000F
-#define MAX_LNK_WIDTH 0x03F0
-#define LINK_ACTIVE_REPORTING 0x00100000
-
-/* Link Width Encoding */
-#define LNK_X1 0x01
-#define LNK_X2 0x02
-#define LNK_X4 0x04
-#define LNK_X8 0x08
-#define LNK_X12 0x0C
-#define LNK_X16 0x10
-#define LNK_X32 0x20
-
-/*Field definitions of Link Status Register */
-#define LNK_SPEED 0x000F
-#define NEG_LINK_WD 0x03F0
-#define LNK_TRN_ERR 0x0400
-#define LNK_TRN 0x0800
-#define SLOT_CLK_CONF 0x1000
-#define LINK_ACTIVE 0x2000
-
-/* Field definitions in Slot Capabilities Register */
-#define ATTN_BUTTN_PRSN 0x00000001
-#define PWR_CTRL_PRSN 0x00000002
-#define MRL_SENS_PRSN 0x00000004
-#define ATTN_LED_PRSN 0x00000008
-#define PWR_LED_PRSN 0x00000010
-#define HP_SUPR_RM_SUP 0x00000020
-#define HP_CAP 0x00000040
-#define SLOT_PWR_VALUE 0x000003F8
-#define SLOT_PWR_LIMIT 0x00000C00
-#define PSN 0xFFF80000 /* PSN: Physical Slot Number */
-
-/* Field definitions in Slot Control Register */
-#define ATTN_BUTTN_ENABLE 0x0001
-#define PWR_FAULT_DETECT_ENABLE 0x0002
-#define MRL_DETECT_ENABLE 0x0004
-#define PRSN_DETECT_ENABLE 0x0008
-#define CMD_CMPL_INTR_ENABLE 0x0010
-#define HP_INTR_ENABLE 0x0020
-#define ATTN_LED_CTRL 0x00C0
-#define PWR_LED_CTRL 0x0300
-#define PWR_CTRL 0x0400
-#define EMI_CTRL 0x0800
-
-/* Attention indicator and Power indicator states */
-#define LED_ON 0x01
-#define LED_BLINK 0x10
-#define LED_OFF 0x11
-
/* Power Control Command */
#define POWER_ON 0
-#define POWER_OFF 0x0400
-
-/* EMI Status defines */
-#define EMI_DISENGAGED 0
-#define EMI_ENGAGED 1
-
-/* Field definitions in Slot Status Register */
-#define ATTN_BUTTN_PRESSED 0x0001
-#define PWR_FAULT_DETECTED 0x0002
-#define MRL_SENS_CHANGED 0x0004
-#define PRSN_DETECT_CHANGED 0x0008
-#define CMD_COMPLETED 0x0010
-#define MRL_STATE 0x0020
-#define PRSN_STATE 0x0040
-#define EMI_STATE 0x0080
-#define EMI_STATUS_BIT 7
+#define POWER_OFF PCI_EXP_SLTCTL_PCC
static irqreturn_t pcie_isr(int irq, void *dev_id);
static void start_int_poll_timer(struct controller *ctrl, int sec);
@@ -253,22 +131,20 @@ static inline void pciehp_free_irq(struct controller *ctrl)
static int pcie_poll_cmd(struct controller *ctrl)
{
u16 slot_status;
- int timeout = 1000;
+ int err, timeout = 1000;
- if (!pciehp_readw(ctrl, SLOTSTATUS, &slot_status)) {
- if (slot_status & CMD_COMPLETED) {
- pciehp_writew(ctrl, SLOTSTATUS, CMD_COMPLETED);
- return 1;
- }
+ err = pciehp_readw(ctrl, PCI_EXP_SLTSTA, &slot_status);
+ if (!err && (slot_status & PCI_EXP_SLTSTA_CC)) {
+ pciehp_writew(ctrl, PCI_EXP_SLTSTA, PCI_EXP_SLTSTA_CC);
+ return 1;
}
while (timeout > 0) {
msleep(10);
timeout -= 10;
- if (!pciehp_readw(ctrl, SLOTSTATUS, &slot_status)) {
- if (slot_status & CMD_COMPLETED) {
- pciehp_writew(ctrl, SLOTSTATUS, CMD_COMPLETED);
- return 1;
- }
+ err = pciehp_readw(ctrl, PCI_EXP_SLTSTA, &slot_status);
+ if (!err && (slot_status & PCI_EXP_SLTSTA_CC)) {
+ pciehp_writew(ctrl, PCI_EXP_SLTSTA, PCI_EXP_SLTSTA_CC);
+ return 1;
}
}
return 0; /* timeout */
@@ -302,14 +178,14 @@ static int pcie_write_cmd(struct controller *ctrl, u16 cmd, u16 mask)
mutex_lock(&ctrl->ctrl_lock);
- retval = pciehp_readw(ctrl, SLOTSTATUS, &slot_status);
+ retval = pciehp_readw(ctrl, PCI_EXP_SLTSTA, &slot_status);
if (retval) {
ctrl_err(ctrl, "%s: Cannot read SLOTSTATUS register\n",
__func__);
goto out;
}
- if (slot_status & CMD_COMPLETED) {
+ if (slot_status & PCI_EXP_SLTSTA_CC) {
if (!ctrl->no_cmd_complete) {
/*
* After 1 sec and CMD_COMPLETED still not set, just
@@ -332,7 +208,7 @@ static int pcie_write_cmd(struct controller *ctrl, u16 cmd, u16 mask)
}
}
- retval = pciehp_readw(ctrl, SLOTCTRL, &slot_ctrl);
+ retval = pciehp_readw(ctrl, PCI_EXP_SLTCTL, &slot_ctrl);
if (retval) {
ctrl_err(ctrl, "%s: Cannot read SLOTCTRL register\n", __func__);
goto out;
@@ -342,7 +218,7 @@ static int pcie_write_cmd(struct controller *ctrl, u16 cmd, u16 mask)
slot_ctrl |= (cmd & mask);
ctrl->cmd_busy = 1;
smp_mb();
- retval = pciehp_writew(ctrl, SLOTCTRL, slot_ctrl);
+ retval = pciehp_writew(ctrl, PCI_EXP_SLTCTL, slot_ctrl);
if (retval)
ctrl_err(ctrl, "Cannot write to SLOTCTRL register\n");
@@ -356,8 +232,8 @@ static int pcie_write_cmd(struct controller *ctrl, u16 cmd, u16 mask)
* completed interrupt is not enabled, we need to poll
* command completed event.
*/
- if (!(slot_ctrl & HP_INTR_ENABLE) ||
- !(slot_ctrl & CMD_CMPL_INTR_ENABLE))
+ if (!(slot_ctrl & PCI_EXP_SLTCTL_HPIE) ||
+ !(slot_ctrl & PCI_EXP_SLTCTL_CCIE))
poll = 1;
pcie_wait_cmd(ctrl, poll);
}
@@ -370,9 +246,9 @@ static inline int check_link_active(struct controller *ctrl)
{
u16 link_status;
- if (pciehp_readw(ctrl, LNKSTATUS, &link_status))
+ if (pciehp_readw(ctrl, PCI_EXP_LNKSTA, &link_status))
return 0;
- return !!(link_status & LINK_ACTIVE);
+ return !!(link_status & PCI_EXP_LNKSTA_DLLLA);
}
static void pcie_wait_link_active(struct controller *ctrl)
@@ -412,15 +288,15 @@ static int hpc_check_lnk_status(struct controller *ctrl)
} else
msleep(1000);
- retval = pciehp_readw(ctrl, LNKSTATUS, &lnk_status);
+ retval = pciehp_readw(ctrl, PCI_EXP_LNKSTA, &lnk_status);
if (retval) {
ctrl_err(ctrl, "Cannot read LNKSTATUS register\n");
return retval;
}
ctrl_dbg(ctrl, "%s: lnk_status = %x\n", __func__, lnk_status);
- if ( (lnk_status & LNK_TRN) || (lnk_status & LNK_TRN_ERR) ||
- !(lnk_status & NEG_LINK_WD)) {
+ if ((lnk_status & PCI_EXP_LNKSTA_LT) ||
+ !(lnk_status & PCI_EXP_LNKSTA_NLW)) {
ctrl_err(ctrl, "Link Training Error occurs \n");
retval = -1;
return retval;
@@ -436,16 +312,16 @@ static int hpc_get_attention_status(struct slot *slot, u8 *status)
u8 atten_led_state;
int retval = 0;
- retval = pciehp_readw(ctrl, SLOTCTRL, &slot_ctrl);
+ retval = pciehp_readw(ctrl, PCI_EXP_SLTCTL, &slot_ctrl);
if (retval) {
ctrl_err(ctrl, "%s: Cannot read SLOTCTRL register\n", __func__);
return retval;
}
ctrl_dbg(ctrl, "%s: SLOTCTRL %x, value read %x\n",
- __func__, ctrl->cap_base + SLOTCTRL, slot_ctrl);
+ __func__, ctrl->cap_base + PCI_EXP_SLTCTL, slot_ctrl);
- atten_led_state = (slot_ctrl & ATTN_LED_CTRL) >> 6;
+ atten_led_state = (slot_ctrl & PCI_EXP_SLTCTL_AIC) >> 6;
switch (atten_led_state) {
case 0:
@@ -475,15 +351,15 @@ static int hpc_get_power_status(struct slot *slot, u8 *status)
u8 pwr_state;
int retval = 0;
- retval = pciehp_readw(ctrl, SLOTCTRL, &slot_ctrl);
+ retval = pciehp_readw(ctrl, PCI_EXP_SLTCTL, &slot_ctrl);
if (retval) {
ctrl_err(ctrl, "%s: Cannot read SLOTCTRL register\n", __func__);
return retval;
}
ctrl_dbg(ctrl, "%s: SLOTCTRL %x value read %x\n",
- __func__, ctrl->cap_base + SLOTCTRL, slot_ctrl);
+ __func__, ctrl->cap_base + PCI_EXP_SLTCTL, slot_ctrl);
- pwr_state = (slot_ctrl & PWR_CTRL) >> 10;
+ pwr_state = (slot_ctrl & PCI_EXP_SLTCTL_PCC) >> 10;
switch (pwr_state) {
case 0:
@@ -504,17 +380,15 @@ static int hpc_get_latch_status(struct slot *slot, u8 *status)
{
struct controller *ctrl = slot->ctrl;
u16 slot_status;
- int retval = 0;
+ int retval;
- retval = pciehp_readw(ctrl, SLOTSTATUS, &slot_status);
+ retval = pciehp_readw(ctrl, PCI_EXP_SLTSTA, &slot_status);
if (retval) {
ctrl_err(ctrl, "%s: Cannot read SLOTSTATUS register\n",
__func__);
return retval;
}
-
- *status = (((slot_status & MRL_STATE) >> 5) == 0) ? 0 : 1;
-
+ *status = !!(slot_status & PCI_EXP_SLTSTA_MRLSS);
return 0;
}
@@ -522,18 +396,15 @@ static int hpc_get_adapter_status(struct slot *slot, u8 *status)
{
struct controller *ctrl = slot->ctrl;
u16 slot_status;
- u8 card_state;
- int retval = 0;
+ int retval;
- retval = pciehp_readw(ctrl, SLOTSTATUS, &slot_status);
+ retval = pciehp_readw(ctrl, PCI_EXP_SLTSTA, &slot_status);
if (retval) {
ctrl_err(ctrl, "%s: Cannot read SLOTSTATUS register\n",
__func__);
return retval;
}
- card_state = (u8)((slot_status & PRSN_STATE) >> 6);
- *status = (card_state == 1) ? 1 : 0;
-
+ *status = !!(slot_status & PCI_EXP_SLTSTA_PDS);
return 0;
}
@@ -541,32 +412,28 @@ static int hpc_query_power_fault(struct slot *slot)
{
struct controller *ctrl = slot->ctrl;
u16 slot_status;
- u8 pwr_fault;
- int retval = 0;
+ int retval;
- retval = pciehp_readw(ctrl, SLOTSTATUS, &slot_status);
+ retval = pciehp_readw(ctrl, PCI_EXP_SLTSTA, &slot_status);
if (retval) {
ctrl_err(ctrl, "Cannot check for power fault\n");
return retval;
}
- pwr_fault = (u8)((slot_status & PWR_FAULT_DETECTED) >> 1);
-
- return pwr_fault;
+ return !!(slot_status & PCI_EXP_SLTSTA_PFD);
}
static int hpc_get_emi_status(struct slot *slot, u8 *status)
{
struct controller *ctrl = slot->ctrl;
u16 slot_status;
- int retval = 0;
+ int retval;
- retval = pciehp_readw(ctrl, SLOTSTATUS, &slot_status);
+ retval = pciehp_readw(ctrl, PCI_EXP_SLTSTA, &slot_status);
if (retval) {
ctrl_err(ctrl, "Cannot check EMI status\n");
return retval;
}
- *status = (slot_status & EMI_STATE) >> EMI_STATUS_BIT;
-
+ *status = !!(slot_status & PCI_EXP_SLTSTA_EIS);
return retval;
}
@@ -576,8 +443,8 @@ static int hpc_toggle_emi(struct slot *slot)
u16 cmd_mask;
int rc;
- slot_cmd = EMI_CTRL;
- cmd_mask = EMI_CTRL;
+ slot_cmd = PCI_EXP_SLTCTL_EIC;
+ cmd_mask = PCI_EXP_SLTCTL_EIC;
rc = pcie_write_cmd(slot->ctrl, slot_cmd, cmd_mask);
slot->last_emi_toggle = get_seconds();
@@ -591,7 +458,7 @@ static int hpc_set_attention_status(struct slot *slot, u8 value)
u16 cmd_mask;
int rc;
- cmd_mask = ATTN_LED_CTRL;
+ cmd_mask = PCI_EXP_SLTCTL_AIC;
switch (value) {
case 0 : /* turn off */
slot_cmd = 0x00C0;
@@ -607,7 +474,7 @@ static int hpc_set_attention_status(struct slot *slot, u8 value)
}
rc = pcie_write_cmd(ctrl, slot_cmd, cmd_mask);
ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n",
- __func__, ctrl->cap_base + SLOTCTRL, slot_cmd);
+ __func__, ctrl->cap_base + PCI_EXP_SLTCTL, slot_cmd);
return rc;
}
@@ -619,10 +486,10 @@ static void hpc_set_green_led_on(struct slot *slot)
u16 cmd_mask;
slot_cmd = 0x0100;
- cmd_mask = PWR_LED_CTRL;
+ cmd_mask = PCI_EXP_SLTCTL_PIC;
pcie_write_cmd(ctrl, slot_cmd, cmd_mask);
ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n",
- __func__, ctrl->cap_base + SLOTCTRL, slot_cmd);
+ __func__, ctrl->cap_base + PCI_EXP_SLTCTL, slot_cmd);
}
static void hpc_set_green_led_off(struct slot *slot)
@@ -632,10 +499,10 @@ static void hpc_set_green_led_off(struct slot *slot)
u16 cmd_mask;
slot_cmd = 0x0300;
- cmd_mask = PWR_LED_CTRL;
+ cmd_mask = PCI_EXP_SLTCTL_PIC;
pcie_write_cmd(ctrl, slot_cmd, cmd_mask);
ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n",
- __func__, ctrl->cap_base + SLOTCTRL, slot_cmd);
+ __func__, ctrl->cap_base + PCI_EXP_SLTCTL, slot_cmd);
}
static void hpc_set_green_led_blink(struct slot *slot)
@@ -645,10 +512,10 @@ static void hpc_set_green_led_blink(struct slot *slot)
u16 cmd_mask;
slot_cmd = 0x0200;
- cmd_mask = PWR_LED_CTRL;
+ cmd_mask = PCI_EXP_SLTCTL_PIC;
pcie_write_cmd(ctrl, slot_cmd, cmd_mask);
ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n",
- __func__, ctrl->cap_base + SLOTCTRL, slot_cmd);
+ __func__, ctrl->cap_base + PCI_EXP_SLTCTL, slot_cmd);
}
static int hpc_power_on_slot(struct slot * slot)
@@ -662,15 +529,15 @@ static int hpc_power_on_slot(struct slot * slot)
ctrl_dbg(ctrl, "%s: slot->hp_slot %x\n", __func__, slot->hp_slot);
/* Clear sticky power-fault bit from previous power failures */
- retval = pciehp_readw(ctrl, SLOTSTATUS, &slot_status);
+ retval = pciehp_readw(ctrl, PCI_EXP_SLTSTA, &slot_status);
if (retval) {
ctrl_err(ctrl, "%s: Cannot read SLOTSTATUS register\n",
__func__);
return retval;
}
- slot_status &= PWR_FAULT_DETECTED;
+ slot_status &= PCI_EXP_SLTSTA_PFD;
if (slot_status) {
- retval = pciehp_writew(ctrl, SLOTSTATUS, slot_status);
+ retval = pciehp_writew(ctrl, PCI_EXP_SLTSTA, slot_status);
if (retval) {
ctrl_err(ctrl,
"%s: Cannot write to SLOTSTATUS register\n",
@@ -680,13 +547,13 @@ static int hpc_power_on_slot(struct slot * slot)
}
slot_cmd = POWER_ON;
- cmd_mask = PWR_CTRL;
+ cmd_mask = PCI_EXP_SLTCTL_PCC;
/* Enable detection that we turned off at slot power-off time */
if (!pciehp_poll_mode) {
- slot_cmd |= (PWR_FAULT_DETECT_ENABLE | MRL_DETECT_ENABLE |
- PRSN_DETECT_ENABLE);
- cmd_mask |= (PWR_FAULT_DETECT_ENABLE | MRL_DETECT_ENABLE |
- PRSN_DETECT_ENABLE);
+ slot_cmd |= (PCI_EXP_SLTCTL_PFDE | PCI_EXP_SLTCTL_MRLSCE |
+ PCI_EXP_SLTCTL_PDCE);
+ cmd_mask |= (PCI_EXP_SLTCTL_PFDE | PCI_EXP_SLTCTL_MRLSCE |
+ PCI_EXP_SLTCTL_PDCE);
}
retval = pcie_write_cmd(ctrl, slot_cmd, cmd_mask);
@@ -696,7 +563,7 @@ static int hpc_power_on_slot(struct slot * slot)
return -1;
}
ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n",
- __func__, ctrl->cap_base + SLOTCTRL, slot_cmd);
+ __func__, ctrl->cap_base + PCI_EXP_SLTCTL, slot_cmd);
return retval;
}
@@ -753,7 +620,7 @@ static int hpc_power_off_slot(struct slot * slot)
changed = pcie_mask_bad_dllp(ctrl);
slot_cmd = POWER_OFF;
- cmd_mask = PWR_CTRL;
+ cmd_mask = PCI_EXP_SLTCTL_PCC;
/*
* If we get MRL or presence detect interrupts now, the isr
* will notice the sticky power-fault bit too and issue power
@@ -762,10 +629,10 @@ static int hpc_power_off_slot(struct slot * slot)
* till the slot is powered on again.
*/
if (!pciehp_poll_mode) {
- slot_cmd &= ~(PWR_FAULT_DETECT_ENABLE | MRL_DETECT_ENABLE |
- PRSN_DETECT_ENABLE);
- cmd_mask |= (PWR_FAULT_DETECT_ENABLE | MRL_DETECT_ENABLE |
- PRSN_DETECT_ENABLE);
+ slot_cmd &= ~(PCI_EXP_SLTCTL_PFDE | PCI_EXP_SLTCTL_MRLSCE |
+ PCI_EXP_SLTCTL_PDCE);
+ cmd_mask |= (PCI_EXP_SLTCTL_PFDE | PCI_EXP_SLTCTL_MRLSCE |
+ PCI_EXP_SLTCTL_PDCE);
}
retval = pcie_write_cmd(ctrl, slot_cmd, cmd_mask);
@@ -775,7 +642,7 @@ static int hpc_power_off_slot(struct slot * slot)
goto out;
}
ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n",
- __func__, ctrl->cap_base + SLOTCTRL, slot_cmd);
+ __func__, ctrl->cap_base + PCI_EXP_SLTCTL, slot_cmd);
out:
if (changed)
pcie_unmask_bad_dllp(ctrl);
@@ -796,19 +663,19 @@ static irqreturn_t pcie_isr(int irq, void *dev_id)
*/
intr_loc = 0;
do {
- if (pciehp_readw(ctrl, SLOTSTATUS, &detected)) {
+ if (pciehp_readw(ctrl, PCI_EXP_SLTSTA, &detected)) {
ctrl_err(ctrl, "%s: Cannot read SLOTSTATUS\n",
__func__);
return IRQ_NONE;
}
- detected &= (ATTN_BUTTN_PRESSED | PWR_FAULT_DETECTED |
- MRL_SENS_CHANGED | PRSN_DETECT_CHANGED |
- CMD_COMPLETED);
+ detected &= (PCI_EXP_SLTSTA_ABP | PCI_EXP_SLTSTA_PFD |
+ PCI_EXP_SLTSTA_MRLSC | PCI_EXP_SLTSTA_PDC |
+ PCI_EXP_SLTSTA_CC);
intr_loc |= detected;
if (!intr_loc)
return IRQ_NONE;
- if (detected && pciehp_writew(ctrl, SLOTSTATUS, detected)) {
+ if (detected && pciehp_writew(ctrl, PCI_EXP_SLTSTA, detected)) {
ctrl_err(ctrl, "%s: Cannot write to SLOTSTATUS\n",
__func__);
return IRQ_NONE;
@@ -818,31 +685,31 @@ static irqreturn_t pcie_isr(int irq, void *dev_id)
ctrl_dbg(ctrl, "%s: intr_loc %x\n", __func__, intr_loc);
/* Check Command Complete Interrupt Pending */
- if (intr_loc & CMD_COMPLETED) {
+ if (intr_loc & PCI_EXP_SLTSTA_CC) {
ctrl->cmd_busy = 0;
smp_mb();
wake_up(&ctrl->queue);
}
- if (!(intr_loc & ~CMD_COMPLETED))
+ if (!(intr_loc & ~PCI_EXP_SLTSTA_CC))
return IRQ_HANDLED;
p_slot = pciehp_find_slot(ctrl, ctrl->slot_device_offset);
/* Check MRL Sensor Changed */
- if (intr_loc & MRL_SENS_CHANGED)
+ if (intr_loc & PCI_EXP_SLTSTA_MRLSC)
pciehp_handle_switch_change(p_slot);
/* Check Attention Button Pressed */
- if (intr_loc & ATTN_BUTTN_PRESSED)
+ if (intr_loc & PCI_EXP_SLTSTA_ABP)
pciehp_handle_attention_button(p_slot);
/* Check Presence Detect Changed */
- if (intr_loc & PRSN_DETECT_CHANGED)
+ if (intr_loc & PCI_EXP_SLTSTA_PDC)
pciehp_handle_presence_change(p_slot);
/* Check Power Fault Detected */
- if (intr_loc & PWR_FAULT_DETECTED)
+ if (intr_loc & PCI_EXP_SLTSTA_PFD)
pciehp_handle_power_fault(p_slot);
return IRQ_HANDLED;
@@ -855,7 +722,7 @@ static int hpc_get_max_lnk_speed(struct slot *slot, enum pci_bus_speed *value)
u32 lnk_cap;
int retval = 0;
- retval = pciehp_readl(ctrl, LNKCAP, &lnk_cap);
+ retval = pciehp_readl(ctrl, PCI_EXP_LNKCAP, &lnk_cap);
if (retval) {
ctrl_err(ctrl, "%s: Cannot read LNKCAP register\n", __func__);
return retval;
@@ -884,13 +751,13 @@ static int hpc_get_max_lnk_width(struct slot *slot,
u32 lnk_cap;
int retval = 0;
- retval = pciehp_readl(ctrl, LNKCAP, &lnk_cap);
+ retval = pciehp_readl(ctrl, PCI_EXP_LNKCAP, &lnk_cap);
if (retval) {
ctrl_err(ctrl, "%s: Cannot read LNKCAP register\n", __func__);
return retval;
}
- switch ((lnk_cap & 0x03F0) >> 4){
+ switch ((lnk_cap & PCI_EXP_LNKSTA_NLW) >> 4){
case 0:
lnk_wdth = PCIE_LNK_WIDTH_RESRV;
break;
@@ -933,14 +800,14 @@ static int hpc_get_cur_lnk_speed(struct slot *slot, enum pci_bus_speed *value)
int retval = 0;
u16 lnk_status;
- retval = pciehp_readw(ctrl, LNKSTATUS, &lnk_status);
+ retval = pciehp_readw(ctrl, PCI_EXP_LNKSTA, &lnk_status);
if (retval) {
ctrl_err(ctrl, "%s: Cannot read LNKSTATUS register\n",
__func__);
return retval;
}
- switch (lnk_status & 0x0F) {
+ switch (lnk_status & PCI_EXP_LNKSTA_CLS) {
case 1:
lnk_speed = PCIE_2PT5GB;
break;
@@ -963,14 +830,14 @@ static int hpc_get_cur_lnk_width(struct slot *slot,
int retval = 0;
u16 lnk_status;
- retval = pciehp_readw(ctrl, LNKSTATUS, &lnk_status);
+ retval = pciehp_readw(ctrl, PCI_EXP_LNKSTA, &lnk_status);
if (retval) {
ctrl_err(ctrl, "%s: Cannot read LNKSTATUS register\n",
__func__);
return retval;
}
- switch ((lnk_status & 0x03F0) >> 4){
+ switch ((lnk_status & PCI_EXP_LNKSTA_NLW) >> 4){
case 0:
lnk_wdth = PCIE_LNK_WIDTH_RESRV;
break;
@@ -1036,18 +903,19 @@ int pcie_enable_notification(struct controller *ctrl)
{
u16 cmd, mask;
- cmd = PRSN_DETECT_ENABLE;
+ cmd = PCI_EXP_SLTCTL_PDCE;
if (ATTN_BUTTN(ctrl))
- cmd |= ATTN_BUTTN_ENABLE;
+ cmd |= PCI_EXP_SLTCTL_ABPE;
if (POWER_CTRL(ctrl))
- cmd |= PWR_FAULT_DETECT_ENABLE;
+ cmd |= PCI_EXP_SLTCTL_PFDE;
if (MRL_SENS(ctrl))
- cmd |= MRL_DETECT_ENABLE;
+ cmd |= PCI_EXP_SLTCTL_MRLSCE;
if (!pciehp_poll_mode)
- cmd |= HP_INTR_ENABLE | CMD_CMPL_INTR_ENABLE;
+ cmd |= PCI_EXP_SLTCTL_HPIE | PCI_EXP_SLTCTL_CCIE;
- mask = PRSN_DETECT_ENABLE | ATTN_BUTTN_ENABLE | MRL_DETECT_ENABLE |
- PWR_FAULT_DETECT_ENABLE | HP_INTR_ENABLE | CMD_CMPL_INTR_ENABLE;
+ mask = (PCI_EXP_SLTCTL_PDCE | PCI_EXP_SLTCTL_ABPE |
+ PCI_EXP_SLTCTL_MRLSCE | PCI_EXP_SLTCTL_PFDE |
+ PCI_EXP_SLTCTL_HPIE | PCI_EXP_SLTCTL_CCIE);
if (pcie_write_cmd(ctrl, cmd, mask)) {
ctrl_err(ctrl, "Cannot enable software notification\n");
@@ -1059,8 +927,9 @@ int pcie_enable_notification(struct controller *ctrl)
static void pcie_disable_notification(struct controller *ctrl)
{
u16 mask;
- mask = PRSN_DETECT_ENABLE | ATTN_BUTTN_ENABLE | MRL_DETECT_ENABLE |
- PWR_FAULT_DETECT_ENABLE | HP_INTR_ENABLE | CMD_CMPL_INTR_ENABLE;
+ mask = (PCI_EXP_SLTCTL_PDCE | PCI_EXP_SLTCTL_ABPE |
+ PCI_EXP_SLTCTL_MRLSCE | PCI_EXP_SLTCTL_PFDE |
+ PCI_EXP_SLTCTL_HPIE | PCI_EXP_SLTCTL_CCIE);
if (pcie_write_cmd(ctrl, 0, mask))
ctrl_warn(ctrl, "Cannot disable software notification\n");
}
@@ -1157,9 +1026,9 @@ static inline void dbg_ctrl(struct controller *ctrl)
EMI(ctrl) ? "yes" : "no");
ctrl_info(ctrl, " Command Completed : %3s\n",
NO_CMD_CMPL(ctrl) ? "no" : "yes");
- pciehp_readw(ctrl, SLOTSTATUS, &reg16);
+ pciehp_readw(ctrl, PCI_EXP_SLTSTA, &reg16);
ctrl_info(ctrl, "Slot Status : 0x%04x\n", reg16);
- pciehp_readw(ctrl, SLOTCTRL, &reg16);
+ pciehp_readw(ctrl, PCI_EXP_SLTCTL, &reg16);
ctrl_info(ctrl, "Slot Control : 0x%04x\n", reg16);
}
@@ -1183,7 +1052,7 @@ struct controller *pcie_init(struct pcie_device *dev)
ctrl_err(ctrl, "Cannot find PCI Express capability\n");
goto abort_ctrl;
}
- if (pciehp_readl(ctrl, SLOTCAP, &slot_cap)) {
+ if (pciehp_readl(ctrl, PCI_EXP_SLTCAP, &slot_cap)) {
ctrl_err(ctrl, "Cannot read SLOTCAP register\n");
goto abort_ctrl;
}
@@ -1208,17 +1077,17 @@ struct controller *pcie_init(struct pcie_device *dev)
ctrl->no_cmd_complete = 1;
/* Check if Data Link Layer Link Active Reporting is implemented */
- if (pciehp_readl(ctrl, LNKCAP, &link_cap)) {
+ if (pciehp_readl(ctrl, PCI_EXP_LNKCAP, &link_cap)) {
ctrl_err(ctrl, "%s: Cannot read LNKCAP register\n", __func__);
goto abort_ctrl;
}
- if (link_cap & LINK_ACTIVE_REPORTING) {
+ if (link_cap & PCI_EXP_LNKCAP_DLLLARC) {
ctrl_dbg(ctrl, "Link Active Reporting supported\n");
ctrl->link_active_reporting = 1;
}
/* Clear all remaining event bits in Slot Status register */
- if (pciehp_writew(ctrl, SLOTSTATUS, 0x1f))
+ if (pciehp_writew(ctrl, PCI_EXP_SLTSTA, 0x1f))
goto abort_ctrl;
/* Disable sotfware notification */