Merge /spare/repo/linux-2.6/

1 files changed, 76 insertions, 70 deletions

diff --git a/drivers/scsi/sata_sx4.c b/drivers/scsi/sata_sx4.c
index c7f6ec262a1..c72fcc46f0f 100644
--- a/drivers/scsi/sata_sx4.c
+++ b/drivers/scsi/sata_sx4.c
@@ -99,7 +99,7 @@ enum {
         PDC_DIMM1_CONTROL_OFFSET      = 0x84,
         PDC_SDRAM_CONTROL_OFFSET      = 0x88,
         PDC_I2C_WRITE                 = 0x00000000,
-        PDC_I2C_READ                  = 0x00000040,     
+        PDC_I2C_READ                  = 0x00000040,
         PDC_I2C_START                 = 0x00000080,
         PDC_I2C_MASK_INT              = 0x00000020,
         PDC_I2C_COMPLETE              = 0x00010000,
@@ -110,16 +110,16 @@ enum {
         PDC_DIMM_SPD_COLUMN_NUM       = 4,
         PDC_DIMM_SPD_MODULE_ROW       = 5,
         PDC_DIMM_SPD_TYPE             = 11,
-        PDC_DIMM_SPD_FRESH_RATE       = 12,         
-        PDC_DIMM_SPD_BANK_NUM         = 17,     
+        PDC_DIMM_SPD_FRESH_RATE       = 12,
+        PDC_DIMM_SPD_BANK_NUM         = 17,
         PDC_DIMM_SPD_CAS_LATENCY      = 18,
-        PDC_DIMM_SPD_ATTRIBUTE        = 21,    
+        PDC_DIMM_SPD_ATTRIBUTE        = 21,
         PDC_DIMM_SPD_ROW_PRE_CHARGE   = 27,
-        PDC_DIMM_SPD_ROW_ACTIVE_DELAY = 28,      
+        PDC_DIMM_SPD_ROW_ACTIVE_DELAY = 28,
         PDC_DIMM_SPD_RAS_CAS_DELAY    = 29,
         PDC_DIMM_SPD_ACTIVE_PRECHARGE = 30,
         PDC_DIMM_SPD_SYSTEM_FREQ      = 126,
-        PDC_CTL_STATUS                = 0x08,   
+        PDC_CTL_STATUS                = 0x08,
         PDC_DIMM_WINDOW_CTLR          = 0x0C,
         PDC_TIME_CONTROL              = 0x3C,
         PDC_TIME_PERIOD               = 0x40,
@@ -162,15 +162,15 @@ static void pdc_exec_command_mmio(struct ata_port *ap, struct ata_taskfile *tf);
 static void pdc20621_host_stop(struct ata_host_set *host_set);
 static unsigned int pdc20621_dimm_init(struct ata_probe_ent *pe);
 static int pdc20621_detect_dimm(struct ata_probe_ent *pe);
-static unsigned int pdc20621_i2c_read(struct ata_probe_ent *pe, 
+static unsigned int pdc20621_i2c_read(struct ata_probe_ent *pe,
                                       u32 device, u32 subaddr, u32 *pdata);
 static int pdc20621_prog_dimm0(struct ata_probe_ent *pe);
 static unsigned int pdc20621_prog_dimm_global(struct ata_probe_ent *pe);
 #ifdef ATA_VERBOSE_DEBUG
-static void pdc20621_get_from_dimm(struct ata_probe_ent *pe, 
+static void pdc20621_get_from_dimm(struct ata_probe_ent *pe,
                                    void *psource, u32 offset, u32 size);
 #endif
-static void pdc20621_put_to_dimm(struct ata_probe_ent *pe, 
+static void pdc20621_put_to_dimm(struct ata_probe_ent *pe,
                                  void *psource, u32 offset, u32 size);
 static void pdc20621_irq_clear(struct ata_port *ap);
 static int pdc20621_qc_issue_prot(struct ata_queued_cmd *qc);
@@ -830,7 +830,8 @@ static irqreturn_t pdc20621_interrupt (int irq, void *dev_instance, struct pt_re
                         ap = host_set->ports[port_no];
                 tmp = mask & (1 << i);
                 VPRINTK("seq %u, port_no %u, ap %p, tmp %x\n", i, port_no, ap, tmp);
-                if (tmp && ap && (!(ap->flags & ATA_FLAG_PORT_DISABLED))) {
+                if (tmp && ap &&
+                    !(ap->flags & (ATA_FLAG_PORT_DISABLED | ATA_FLAG_NOINTR))) {
                         struct ata_queued_cmd *qc;
 
                         qc = ata_qc_from_tag(ap, ap->active_tag);
@@ -852,10 +853,14 @@ static irqreturn_t pdc20621_interrupt (int irq, void *dev_instance, struct pt_re
 static void pdc_eng_timeout(struct ata_port *ap)
 {
         u8 drv_stat;
+        struct ata_host_set *host_set = ap->host_set;
         struct ata_queued_cmd *qc;
+        unsigned long flags;
 
         DPRINTK("ENTER\n");
 
+        spin_lock_irqsave(&host_set->lock, flags);
+
         qc = ata_qc_from_tag(ap, ap->active_tag);
         if (!qc) {
                 printk(KERN_ERR "ata%u: BUG: timeout without command\n",
@@ -889,6 +894,7 @@ static void pdc_eng_timeout(struct ata_port *ap)
         }
 
 out:
+        spin_unlock_irqrestore(&host_set->lock, flags);
         DPRINTK("EXIT\n");
 }
 
@@ -927,7 +933,7 @@ static void pdc_sata_setup_port(struct ata_ioports *port, unsigned long base)
 
 
 #ifdef ATA_VERBOSE_DEBUG
-static void pdc20621_get_from_dimm(struct ata_probe_ent *pe, void *psource, 
+static void pdc20621_get_from_dimm(struct ata_probe_ent *pe, void *psource,
                                    u32 offset, u32 size)
 {
         u32 window_size;
@@ -941,9 +947,9 @@ static void pdc20621_get_from_dimm(struct ata_probe_ent *pe, void *psource,
         /* hard-code chip #0 */
         mmio += PDC_CHIP0_OFS;
 
-        page_mask = 0x00;       
-        window_size = 0x2000 * 4; /* 32K byte uchar size */  
-        idx = (u16) (offset / window_size); 
+        page_mask = 0x00;
+        window_size = 0x2000 * 4; /* 32K byte uchar size */
+        idx = (u16) (offset / window_size);
 
         writel(0x01, mmio + PDC_GENERAL_CTLR);
         readl(mmio + PDC_GENERAL_CTLR);
@@ -952,19 +958,19 @@ static void pdc20621_get_from_dimm(struct ata_probe_ent *pe, void *psource,
 
         offset -= (idx * window_size);
         idx++;
-        dist = ((long) (window_size - (offset + size))) >= 0 ? size : 
+        dist = ((long) (window_size - (offset + size))) >= 0 ? size :
                 (long) (window_size - offset);
-        memcpy_fromio((char *) psource, (char *) (dimm_mmio + offset / 4), 
+        memcpy_fromio((char *) psource, (char *) (dimm_mmio + offset / 4),
                       dist);
 
-        psource += dist;    
+        psource += dist;
         size -= dist;
         for (; (long) size >= (long) window_size ;) {
                 writel(0x01, mmio + PDC_GENERAL_CTLR);
                 readl(mmio + PDC_GENERAL_CTLR);
                 writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR);
                 readl(mmio + PDC_DIMM_WINDOW_CTLR);
-                memcpy_fromio((char *) psource, (char *) (dimm_mmio), 
+                memcpy_fromio((char *) psource, (char *) (dimm_mmio),
                               window_size / 4);
                 psource += window_size;
                 size -= window_size;
@@ -976,14 +982,14 @@ static void pdc20621_get_from_dimm(struct ata_probe_ent *pe, void *psource,
                 readl(mmio + PDC_GENERAL_CTLR);
                 writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR);
                 readl(mmio + PDC_DIMM_WINDOW_CTLR);
-                memcpy_fromio((char *) psource, (char *) (dimm_mmio), 
+                memcpy_fromio((char *) psource, (char *) (dimm_mmio),
                               size / 4);
         }
 }
 #endif
 
 
-static void pdc20621_put_to_dimm(struct ata_probe_ent *pe, void *psource, 
+static void pdc20621_put_to_dimm(struct ata_probe_ent *pe, void *psource,
                                  u32 offset, u32 size)
 {
         u32 window_size;
@@ -994,16 +1000,16 @@ static void pdc20621_put_to_dimm(struct ata_probe_ent *pe, void *psource,
         struct pdc_host_priv *hpriv = pe->private_data;
         void *dimm_mmio = hpriv->dimm_mmio;
 
-        /* hard-code chip #0 */   
+        /* hard-code chip #0 */
         mmio += PDC_CHIP0_OFS;
 
-        page_mask = 0x00;       
-        window_size = 0x2000 * 4;       /* 32K byte uchar size */  
+        page_mask = 0x00;
+        window_size = 0x2000 * 4;       /* 32K byte uchar size */
         idx = (u16) (offset / window_size);
 
         writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR);
         readl(mmio + PDC_DIMM_WINDOW_CTLR);
-        offset -= (idx * window_size); 
+        offset -= (idx * window_size);
         idx++;
         dist = ((long)(s32)(window_size - (offset + size))) >= 0 ? size :
                 (long) (window_size - offset);
@@ -1011,12 +1017,12 @@ static void pdc20621_put_to_dimm(struct ata_probe_ent *pe, void *psource,
         writel(0x01, mmio + PDC_GENERAL_CTLR);
         readl(mmio + PDC_GENERAL_CTLR);
 
-        psource += dist;    
+        psource += dist;
         size -= dist;
         for (; (long) size >= (long) window_size ;) {
                 writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR);
                 readl(mmio + PDC_DIMM_WINDOW_CTLR);
-                memcpy_toio((char *) (dimm_mmio), (char *) psource, 
+                memcpy_toio((char *) (dimm_mmio), (char *) psource,
                             window_size / 4);
                 writel(0x01, mmio + PDC_GENERAL_CTLR);
                 readl(mmio + PDC_GENERAL_CTLR);
@@ -1024,7 +1030,7 @@ static void pdc20621_put_to_dimm(struct ata_probe_ent *pe, void *psource,
                 size -= window_size;
                 idx ++;
         }
-    
+
         if (size) {
                 writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR);
                 readl(mmio + PDC_DIMM_WINDOW_CTLR);
@@ -1035,12 +1041,12 @@ static void pdc20621_put_to_dimm(struct ata_probe_ent *pe, void *psource,
 }
 
 
-static unsigned int pdc20621_i2c_read(struct ata_probe_ent *pe, u32 device, 
+static unsigned int pdc20621_i2c_read(struct ata_probe_ent *pe, u32 device,
                                       u32 subaddr, u32 *pdata)
 {
         void *mmio = pe->mmio_base;
         u32 i2creg  = 0;
-        u32 status;     
+        u32 status;
         u32 count =0;
 
         /* hard-code chip #0 */
@@ -1054,7 +1060,7 @@ static unsigned int pdc20621_i2c_read(struct ata_probe_ent *pe, u32 device,
         readl(mmio + PDC_I2C_ADDR_DATA_OFFSET);
 
         /* Write Control to perform read operation, mask int */
-        writel(PDC_I2C_READ | PDC_I2C_START | PDC_I2C_MASK_INT, 
+        writel(PDC_I2C_READ | PDC_I2C_START | PDC_I2C_MASK_INT,
                mmio + PDC_I2C_CONTROL_OFFSET);
 
         for (count = 0; count <= 1000; count ++) {
@@ -1067,26 +1073,26 @@ static unsigned int pdc20621_i2c_read(struct ata_probe_ent *pe, u32 device,
         }
 
         *pdata = (status >> 8) & 0x000000ff;
-        return 1;           
+        return 1;
 }
 
 
 static int pdc20621_detect_dimm(struct ata_probe_ent *pe)
 {
         u32 data=0 ;
-        if (pdc20621_i2c_read(pe, PDC_DIMM0_SPD_DEV_ADDRESS, 
+        if (pdc20621_i2c_read(pe, PDC_DIMM0_SPD_DEV_ADDRESS,
                              PDC_DIMM_SPD_SYSTEM_FREQ, &data)) {
                 if (data == 100)
                         return 100;
         } else
                 return 0;
-        
+
         if (pdc20621_i2c_read(pe, PDC_DIMM0_SPD_DEV_ADDRESS, 9, &data)) {
-                if(data <= 0x75) 
+                if(data <= 0x75)
                         return 133;
         } else
                 return 0;
-        
+
         return 0;
 }
 
@@ -1096,15 +1102,15 @@ static int pdc20621_prog_dimm0(struct ata_probe_ent *pe)
         u32 spd0[50];
         u32 data = 0;
         int size, i;
-        u8 bdimmsize; 
+        u8 bdimmsize;
         void *mmio = pe->mmio_base;
         static const struct {
                 unsigned int reg;
                 unsigned int ofs;
         } pdc_i2c_read_data [] = {
-                { PDC_DIMM_SPD_TYPE, 11 },              
+                { PDC_DIMM_SPD_TYPE, 11 },
                 { PDC_DIMM_SPD_FRESH_RATE, 12 },
-                { PDC_DIMM_SPD_COLUMN_NUM, 4 }, 
+                { PDC_DIMM_SPD_COLUMN_NUM, 4 },
                 { PDC_DIMM_SPD_ATTRIBUTE, 21 },
                 { PDC_DIMM_SPD_ROW_NUM, 3 },
                 { PDC_DIMM_SPD_BANK_NUM, 17 },
@@ -1113,7 +1119,7 @@ static int pdc20621_prog_dimm0(struct ata_probe_ent *pe)
                 { PDC_DIMM_SPD_ROW_ACTIVE_DELAY, 28 },
                 { PDC_DIMM_SPD_RAS_CAS_DELAY, 29 },
                 { PDC_DIMM_SPD_ACTIVE_PRECHARGE, 30 },
-                { PDC_DIMM_SPD_CAS_LATENCY, 18 },       
+                { PDC_DIMM_SPD_CAS_LATENCY, 18 },
         };
 
         /* hard-code chip #0 */
@@ -1121,17 +1127,17 @@ static int pdc20621_prog_dimm0(struct ata_probe_ent *pe)
 
         for(i=0; i<ARRAY_SIZE(pdc_i2c_read_data); i++)
                 pdc20621_i2c_read(pe, PDC_DIMM0_SPD_DEV_ADDRESS,
-                                  pdc_i2c_read_data[i].reg, 
+                                  pdc_i2c_read_data[i].reg,
                                   &spd0[pdc_i2c_read_data[i].ofs]);
-  
+
         data |= (spd0[4] - 8) | ((spd0[21] != 0) << 3) | ((spd0[3]-11) << 4);
-        data |= ((spd0[17] / 4) << 6) | ((spd0[5] / 2) << 7) | 
+        data |= ((spd0[17] / 4) << 6) | ((spd0[5] / 2) << 7) |
                 ((((spd0[27] + 9) / 10) - 1) << 8) ;
-        data |= (((((spd0[29] > spd0[28]) 
-                    ? spd0[29] : spd0[28]) + 9) / 10) - 1) << 10; 
+        data |= (((((spd0[29] > spd0[28])
+                    ? spd0[29] : spd0[28]) + 9) / 10) - 1) << 10;
         data |= ((spd0[30] - spd0[29] + 9) / 10 - 2) << 12;
-   
-        if (spd0[18] & 0x08) 
+
+        if (spd0[18] & 0x08)
                 data |= ((0x03) << 14);
         else if (spd0[18] & 0x04)
                 data |= ((0x02) << 14);
@@ -1140,7 +1146,7 @@ static int pdc20621_prog_dimm0(struct ata_probe_ent *pe)
         else
                 data |= (0 << 14);
 
-        /* 
+        /*
            Calculate the size of bDIMMSize (power of 2) and
            merge the DIMM size by program start/end address.
         */
@@ -1150,9 +1156,9 @@ static int pdc20621_prog_dimm0(struct ata_probe_ent *pe)
         data |= (((size / 16) - 1) << 16);
         data |= (0 << 23);
         data |= 8;
-        writel(data, mmio + PDC_DIMM0_CONTROL_OFFSET); 
+        writel(data, mmio + PDC_DIMM0_CONTROL_OFFSET);
         readl(mmio + PDC_DIMM0_CONTROL_OFFSET);
-        return size;                          
+        return size;
 }
 
 
@@ -1172,12 +1178,12 @@ static unsigned int pdc20621_prog_dimm_global(struct ata_probe_ent *pe)
           Refresh Enable (bit 17)
         */
 
-        data = 0x022259F1;   
+        data = 0x022259F1;
         writel(data, mmio + PDC_SDRAM_CONTROL_OFFSET);
         readl(mmio + PDC_SDRAM_CONTROL_OFFSET);
 
         /* Turn on for ECC */
-        pdc20621_i2c_read(pe, PDC_DIMM0_SPD_DEV_ADDRESS, 
+        pdc20621_i2c_read(pe, PDC_DIMM0_SPD_DEV_ADDRESS,
                           PDC_DIMM_SPD_TYPE, &spd0);
         if (spd0 == 0x02) {
                 data |= (0x01 << 16);
@@ -1191,22 +1197,22 @@ static unsigned int pdc20621_prog_dimm_global(struct ata_probe_ent *pe)
         data |= (1<<19);
         writel(data, mmio + PDC_SDRAM_CONTROL_OFFSET);
 
-        error = 1;                     
+        error = 1;
         for (i = 1; i <= 10; i++) {   /* polling ~5 secs */
                 data = readl(mmio + PDC_SDRAM_CONTROL_OFFSET);
                 if (!(data & (1<<19))) {
                         error = 0;
-                        break;     
+                        break;
                 }
                 msleep(i*100);
         }
         return error;
 }
-        
+
 
 static unsigned int pdc20621_dimm_init(struct ata_probe_ent *pe)
 {
-        int speed, size, length; 
+        int speed, size, length;
         u32 addr,spd0,pci_status;
         u32 tmp=0;
         u32 time_period=0;
@@ -1233,7 +1239,7 @@ static unsigned int pdc20621_dimm_init(struct ata_probe_ent *pe)
         /* Wait 3 seconds */
         msleep(3000);
 
-        /* 
+        /*
            When timer is enabled, counter is decreased every internal
            clock cycle.
         */
@@ -1241,24 +1247,24 @@ static unsigned int pdc20621_dimm_init(struct ata_probe_ent *pe)
         tcount = readl(mmio + PDC_TIME_COUNTER);
         VPRINTK("Time Counter Register (0x44): 0x%x\n", tcount);
 
-        /* 
+        /*
            If SX4 is on PCI-X bus, after 3 seconds, the timer counter
            register should be >= (0xffffffff - 3x10^8).
         */
         if(tcount >= PCI_X_TCOUNT) {
                 ticks = (time_period - tcount);
                 VPRINTK("Num counters 0x%x (%d)\n", ticks, ticks);
-        
+
                 clock = (ticks / 300000);
                 VPRINTK("10 * Internal clk = 0x%x (%d)\n", clock, clock);
-                
+
                 clock = (clock * 33);
                 VPRINTK("10 * Internal clk * 33 = 0x%x (%d)\n", clock, clock);
 
                 /* PLL F Param (bit 22:16) */
                 fparam = (1400000 / clock) - 2;
                 VPRINTK("PLL F Param: 0x%x (%d)\n", fparam, fparam);
-                
+
                 /* OD param = 0x2 (bit 31:30), R param = 0x5 (bit 29:25) */
                 pci_status = (0x8a001824 | (fparam << 16));
         } else
@@ -1269,21 +1275,21 @@ static unsigned int pdc20621_dimm_init(struct ata_probe_ent *pe)
         writel(pci_status, mmio + PDC_CTL_STATUS);
         readl(mmio + PDC_CTL_STATUS);
 
-        /* 
+        /*
            Read SPD of DIMM by I2C interface,
            and program the DIMM Module Controller.
         */
         if (!(speed = pdc20621_detect_dimm(pe))) {
-                printk(KERN_ERR "Detect Local DIMM Fail\n");  
+                printk(KERN_ERR "Detect Local DIMM Fail\n");
                 return 1;       /* DIMM error */
         }
         VPRINTK("Local DIMM Speed = %d\n", speed);
 
-        /* Programming DIMM0 Module Control Register (index_CID0:80h) */ 
+        /* Programming DIMM0 Module Control Register (index_CID0:80h) */
         size = pdc20621_prog_dimm0(pe);
         VPRINTK("Local DIMM Size = %dMB\n",size);
 
-        /* Programming DIMM Module Global Control Register (index_CID0:88h) */ 
+        /* Programming DIMM Module Global Control Register (index_CID0:88h) */
         if (pdc20621_prog_dimm_global(pe)) {
                 printk(KERN_ERR "Programming DIMM Module Global Control Register Fail\n");
                 return 1;
@@ -1302,30 +1308,30 @@ static unsigned int pdc20621_dimm_init(struct ata_probe_ent *pe)
 
                 pdc20621_put_to_dimm(pe, (void *) test_parttern1, 0x10040, 40);
                 pdc20621_get_from_dimm(pe, (void *) test_parttern2, 0x40, 40);
-                printk(KERN_ERR "%x, %x, %s\n", test_parttern2[0], 
+                printk(KERN_ERR "%x, %x, %s\n", test_parttern2[0],
                        test_parttern2[1], &(test_parttern2[2]));
-                pdc20621_get_from_dimm(pe, (void *) test_parttern2, 0x10040, 
+                pdc20621_get_from_dimm(pe, (void *) test_parttern2, 0x10040,
                                        40);
-                printk(KERN_ERR "%x, %x, %s\n", test_parttern2[0], 
+                printk(KERN_ERR "%x, %x, %s\n", test_parttern2[0],
                        test_parttern2[1], &(test_parttern2[2]));
 
                 pdc20621_put_to_dimm(pe, (void *) test_parttern1, 0x40, 40);
                 pdc20621_get_from_dimm(pe, (void *) test_parttern2, 0x40, 40);
-                printk(KERN_ERR "%x, %x, %s\n", test_parttern2[0], 
+                printk(KERN_ERR "%x, %x, %s\n", test_parttern2[0],
                        test_parttern2[1], &(test_parttern2[2]));
         }
 #endif
 
         /* ECC initiliazation. */
 
-        pdc20621_i2c_read(pe, PDC_DIMM0_SPD_DEV_ADDRESS, 
+        pdc20621_i2c_read(pe, PDC_DIMM0_SPD_DEV_ADDRESS,
                           PDC_DIMM_SPD_TYPE, &spd0);
         if (spd0 == 0x02) {
                 VPRINTK("Start ECC initialization\n");
                 addr = 0;
                 length = size * 1024 * 1024;
                 while (addr < length) {
-                        pdc20621_put_to_dimm(pe, (void *) &tmp, addr, 
+                        pdc20621_put_to_dimm(pe, (void *) &tmp, addr,
                                              sizeof(u32));
                         addr += sizeof(u32);
                 }