diff options
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/hotplug/shpchp_hpc.c | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c index 285a21d3652..e2a8671545f 100644 --- a/drivers/pci/hotplug/shpchp_hpc.c +++ b/drivers/pci/hotplug/shpchp_hpc.c @@ -91,6 +91,17 @@ #define ATTN_BUTTON 0x80000000 /* + * Controller SERR-INT Register + */ +#define GLOBAL_INTR_MASK (1 << 0) +#define GLOBAL_SERR_MASK (1 << 1) +#define COMMAND_INTR_MASK (1 << 2) +#define ARBITER_SERR_MASK (1 << 3) +#define COMMAND_DETECTED (1 << 16) +#define ARBITER_DETECTED (1 << 17) +#define SERR_INTR_RSVDZ_MASK 0xfffc0000 + +/* * Logical Slot Register definitions */ #define SLOT_REG(i) (SLOT1 + (4 * i)) @@ -1047,7 +1058,8 @@ static irqreturn_t shpc_isr(int IRQ, void *dev_id, struct pt_regs *regs) /* Mask Global Interrupt Mask - see implementation note on p. 139 */ /* of SHPC spec rev 1.0*/ temp_dword = shpc_readl(ctrl, SERR_INTR_ENABLE); - temp_dword |= 0x00000001; + temp_dword |= GLOBAL_INTR_MASK; + temp_dword &= ~SERR_INTR_RSVDZ_MASK; shpc_writel(ctrl, SERR_INTR_ENABLE, temp_dword); intr_loc2 = shpc_readl(ctrl, INTR_LOC); @@ -1061,7 +1073,7 @@ static irqreturn_t shpc_isr(int IRQ, void *dev_id, struct pt_regs *regs) * Detect bit in Controller SERR-INT register */ temp_dword = shpc_readl(ctrl, SERR_INTR_ENABLE); - temp_dword &= 0xfffdffff; + temp_dword &= ~SERR_INTR_RSVDZ_MASK; shpc_writel(ctrl, SERR_INTR_ENABLE, temp_dword); ctrl->cmd_busy = 0; wake_up_interruptible(&ctrl->queue); @@ -1105,7 +1117,7 @@ static irqreturn_t shpc_isr(int IRQ, void *dev_id, struct pt_regs *regs) if (!shpchp_poll_mode) { /* Unmask Global Interrupt Mask */ temp_dword = shpc_readl(ctrl, SERR_INTR_ENABLE); - temp_dword &= 0xfffffffe; + temp_dword &= ~(GLOBAL_INTR_MASK | SERR_INTR_RSVDZ_MASK); shpc_writel(ctrl, SERR_INTR_ENABLE, temp_dword); } @@ -1374,7 +1386,9 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev) /* Mask Global Interrupt Mask & Command Complete Interrupt Mask */ tempdword = shpc_readl(ctrl, SERR_INTR_ENABLE); dbg("%s: SERR_INTR_ENABLE = %x\n", __FUNCTION__, tempdword); - tempdword = 0x0003000f; + tempdword |= (GLOBAL_INTR_MASK | GLOBAL_SERR_MASK | + COMMAND_INTR_MASK | ARBITER_SERR_MASK); + tempdword &= ~SERR_INTR_RSVDZ_MASK; shpc_writel(ctrl, SERR_INTR_ENABLE, tempdword); tempdword = shpc_readl(ctrl, SERR_INTR_ENABLE); dbg("%s: SERR_INTR_ENABLE = %x\n", __FUNCTION__, tempdword); @@ -1452,7 +1466,8 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev) if (!shpchp_poll_mode) { /* Unmask all general input interrupts and SERR */ tempdword = shpc_readl(ctrl, SERR_INTR_ENABLE); - tempdword = 0x0000000a; + tempdword &= ~(GLOBAL_INTR_MASK | COMMAND_INTR_MASK | + SERR_INTR_RSVDZ_MASK); shpc_writel(ctrl, SERR_INTR_ENABLE, tempdword); tempdword = shpc_readl(ctrl, SERR_INTR_ENABLE); dbg("%s: SERR_INTR_ENABLE = %x\n", __FUNCTION__, tempdword); |