[SCSI] ipr: add workaround for MSI interrupts on P7

[safe/jmp/linux-2.6] / drivers / scsi / atari_scsi.c

diff --git a/drivers/scsi/atari_scsi.c b/drivers/scsi/atari_scsi.c
index 6f8403b..ad7a23a 100644 (file)
--- a/drivers/scsi/atari_scsi.c
+++ b/drivers/scsi/atari_scsi.c
@@ -249,10 +249,6 @@ static int setup_hostid = -1;
 module_param(setup_hostid, int, 0);
 
 
-#if defined(CONFIG_TT_DMA_EMUL)
-#include "atari_dma_emul.c"
-#endif
-
 #if defined(REAL_DMA)
 
 static int scsi_dma_is_ignored_buserr(unsigned char dma_stat)
@@ -393,7 +389,7 @@ static irqreturn_t scsi_tt_intr(int irq, void *dummy)
 
 #endif /* REAL_DMA */
 
-       NCR5380_intr(0, 0);
+       NCR5380_intr(irq, dummy);
 
 #if 0
        /* To be sure the int is not masked */
@@ -458,7 +454,7 @@ static irqreturn_t scsi_falcon_intr(int irq, void *dummy)
 
 #endif /* REAL_DMA */
 
-       NCR5380_intr(0, 0);
+       NCR5380_intr(irq, dummy);
        return IRQ_HANDLED;
 }
 
@@ -593,7 +589,7 @@ int atari_queue_command(Scsi_Cmnd *cmd, void (*done)(Scsi_Cmnd *))
 #endif
 
 
-int atari_scsi_detect(struct scsi_host_template *host)
+int __init atari_scsi_detect(struct scsi_host_template *host)
 {
        static int called = 0;
        struct Scsi_Host *instance;
@@ -684,7 +680,7 @@ int atari_scsi_detect(struct scsi_host_template *host)
                 * interrupt after having cleared the pending flag for the DMA
                 * interrupt. */
                if (request_irq(IRQ_TT_MFP_SCSI, scsi_tt_intr, IRQ_TYPE_SLOW,
-                                "SCSI NCR5380", scsi_tt_intr)) {
+                                "SCSI NCR5380", instance)) {
                        printk(KERN_ERR "atari_scsi_detect: cannot allocate irq %d, aborting",IRQ_TT_MFP_SCSI);
                        scsi_unregister(atari_scsi_host);
                        atari_stram_free(atari_dma_buffer);
@@ -695,21 +691,8 @@ int atari_scsi_detect(struct scsi_host_template *host)
 #ifdef REAL_DMA
                tt_scsi_dma.dma_ctrl = 0;
                atari_dma_residual = 0;
-#ifdef CONFIG_TT_DMA_EMUL
-               if (MACH_IS_HADES) {
-                       if (request_irq(IRQ_AUTO_2, hades_dma_emulator,
-                                        IRQ_TYPE_PRIO, "Hades DMA emulator",
-                                        hades_dma_emulator)) {
-                               printk(KERN_ERR "atari_scsi_detect: cannot allocate irq %d, aborting (MACH_IS_HADES)",IRQ_AUTO_2);
-                               free_irq(IRQ_TT_MFP_SCSI, scsi_tt_intr);
-                               scsi_unregister(atari_scsi_host);
-                               atari_stram_free(atari_dma_buffer);
-                               atari_dma_buffer = 0;
-                               return 0;
-                       }
-               }
-#endif
-               if (MACH_IS_MEDUSA || MACH_IS_HADES) {
+
+               if (MACH_IS_MEDUSA) {
                        /* While the read overruns (described by Drew Eckhardt in
                         * NCR5380.c) never happened on TTs, they do in fact on the Medusa
                         * (This was the cause why SCSI didn't work right for so long
@@ -761,7 +744,7 @@ int atari_scsi_detect(struct scsi_host_template *host)
 int atari_scsi_release(struct Scsi_Host *sh)
 {
        if (IS_A_TT())
-               free_irq(IRQ_TT_MFP_SCSI, scsi_tt_intr);
+               free_irq(IRQ_TT_MFP_SCSI, sh);
        if (atari_dma_buffer)
                atari_stram_free(atari_dma_buffer);
        return 1;
@@ -1007,11 +990,7 @@ static unsigned long atari_dma_xfer_len(unsigned long wanted_len,
                                        Scsi_Cmnd *cmd, int write_flag)
 {
        unsigned long   possible_len, limit;
-#ifndef CONFIG_TT_DMA_EMUL
-       if (MACH_IS_HADES)
-               /* Hades has no SCSI DMA at all :-( Always force use of PIO */
-               return 0;
-#endif
+
        if (IS_A_TT())
                /* TT SCSI DMA can transfer arbitrary #bytes */
                return wanted_len;