/*
* Support for the Tundra TSI148 VME-PCI Bridge Chip
*
- * Author: Martyn Welch <martyn.welch@gefanuc.com>
- * Copyright 2008 GE Fanuc Intelligent Platforms Embedded Systems, Inc.
+ * Author: Martyn Welch <martyn.welch@ge.com>
+ * Copyright 2008 GE Intelligent Platforms Embedded Systems, Inc.
*
* Based on work by Tom Armistead and Ajit Prem
* Copyright 2004 Motorola Inc.
* option) any later version.
*/
-#include <linux/version.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/mm.h>
#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
#include <asm/time.h>
#include <asm/io.h>
#include <asm/uaccess.h>
int tsi148_dma_list_exec(struct vme_dma_list *);
int tsi148_dma_list_empty(struct vme_dma_list *);
int tsi148_generate_irq(int, int);
-int tsi148_lm_set(unsigned long long, vme_address_t, vme_cycle_t);
-int tsi148_lm_get(unsigned long long *, vme_address_t *, vme_cycle_t *);
-int tsi148_lm_attach(int, void (*callback)(int));
-int tsi148_lm_detach(int);
-int tsi148_slot_get(void);
-
-/* Modue parameter */
-int err_chk = 0;
-
-/* XXX These should all be in a per device structure */
-struct vme_bridge *tsi148_bridge;
-wait_queue_head_t dma_queue[2];
-wait_queue_head_t iack_queue;
-void (*lm_callback[4])(int); /* Called in interrupt handler, be careful! */
-void *crcsr_kernel;
-dma_addr_t crcsr_bus;
-struct vme_master_resource *flush_image;
-struct semaphore vme_rmw; /* Only one RMW cycle at a time */
-struct semaphore vme_int; /*
- * Only one VME interrupt can be
- * generated at a time, provide locking
- */
-struct semaphore vme_irq; /* Locking for VME irq callback configuration */
-struct semaphore vme_lm; /* Locking for location monitor operations */
+/* Module parameter */
+static int err_chk;
+static int geoid;
static char driver_name[] = "vme_tsi148";
-static struct pci_device_id tsi148_ids[] = {
+static const struct pci_device_id tsi148_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_TUNDRA, PCI_DEVICE_ID_TUNDRA_TSI148) },
{ },
};
/*
* Wakes up DMA queue.
*/
-static u32 tsi148_DMA_irqhandler(int channel_mask)
+static u32 tsi148_DMA_irqhandler(struct tsi148_driver *bridge,
+ int channel_mask)
{
u32 serviced = 0;
if (channel_mask & TSI148_LCSR_INTS_DMA0S) {
- wake_up(&dma_queue[0]);
+ wake_up(&(bridge->dma_queue[0]));
serviced |= TSI148_LCSR_INTC_DMA0C;
}
if (channel_mask & TSI148_LCSR_INTS_DMA1S) {
- wake_up(&dma_queue[1]);
+ wake_up(&(bridge->dma_queue[1]));
serviced |= TSI148_LCSR_INTC_DMA1C;
}
/*
* Wake up location monitor queue
*/
-static u32 tsi148_LM_irqhandler(u32 stat)
+static u32 tsi148_LM_irqhandler(struct tsi148_driver *bridge, u32 stat)
{
int i;
u32 serviced = 0;
for (i = 0; i < 4; i++) {
if(stat & TSI148_LCSR_INTS_LMS[i]) {
/* We only enable interrupts if the callback is set */
- lm_callback[i](i);
+ bridge->lm_callback[i](i);
serviced |= TSI148_LCSR_INTC_LMC[i];
}
}
*
* XXX This functionality is not exposed up though API.
*/
-static u32 tsi148_MB_irqhandler(u32 stat)
+static u32 tsi148_MB_irqhandler(struct tsi148_driver *bridge, u32 stat)
{
int i;
u32 val;
for (i = 0; i < 4; i++) {
if(stat & TSI148_LCSR_INTS_MBS[i]) {
- val = ioread32be(tsi148_bridge->base +
- TSI148_GCSR_MBOX[i]);
+ val = ioread32be(bridge->base + TSI148_GCSR_MBOX[i]);
printk("VME Mailbox %d received: 0x%x\n", i, val);
serviced |= TSI148_LCSR_INTC_MBC[i];
}
/*
* Display error & status message when PERR (PCI) exception interrupt occurs.
*/
-static u32 tsi148_PERR_irqhandler(void)
+static u32 tsi148_PERR_irqhandler(struct tsi148_driver *bridge)
{
printk(KERN_ERR
"PCI Exception at address: 0x%08x:%08x, attributes: %08x\n",
- ioread32be(tsi148_bridge->base + TSI148_LCSR_EDPAU),
- ioread32be(tsi148_bridge->base + TSI148_LCSR_EDPAL),
- ioread32be(tsi148_bridge->base + TSI148_LCSR_EDPAT)
+ ioread32be(bridge->base + TSI148_LCSR_EDPAU),
+ ioread32be(bridge->base + TSI148_LCSR_EDPAL),
+ ioread32be(bridge->base + TSI148_LCSR_EDPAT)
);
printk(KERN_ERR
"PCI-X attribute reg: %08x, PCI-X split completion reg: %08x\n",
- ioread32be(tsi148_bridge->base + TSI148_LCSR_EDPXA),
- ioread32be(tsi148_bridge->base + TSI148_LCSR_EDPXS)
+ ioread32be(bridge->base + TSI148_LCSR_EDPXA),
+ ioread32be(bridge->base + TSI148_LCSR_EDPXS)
);
- iowrite32be(TSI148_LCSR_EDPAT_EDPCL,
- tsi148_bridge->base + TSI148_LCSR_EDPAT);
+ iowrite32be(TSI148_LCSR_EDPAT_EDPCL, bridge->base + TSI148_LCSR_EDPAT);
return TSI148_LCSR_INTC_PERRC;
}
/*
* Save address and status when VME error interrupt occurs.
*/
-static u32 tsi148_VERR_irqhandler(void)
+static u32 tsi148_VERR_irqhandler(struct vme_bridge *tsi148_bridge)
{
unsigned int error_addr_high, error_addr_low;
unsigned long long error_addr;
u32 error_attrib;
struct vme_bus_error *error;
+ struct tsi148_driver *bridge;
- error_addr_high = ioread32be(tsi148_bridge->base + TSI148_LCSR_VEAU);
- error_addr_low = ioread32be(tsi148_bridge->base + TSI148_LCSR_VEAL);
- error_attrib = ioread32be(tsi148_bridge->base + TSI148_LCSR_VEAT);
+ bridge = tsi148_bridge->driver_priv;
+
+ error_addr_high = ioread32be(bridge->base + TSI148_LCSR_VEAU);
+ error_addr_low = ioread32be(bridge->base + TSI148_LCSR_VEAL);
+ error_attrib = ioread32be(bridge->base + TSI148_LCSR_VEAT);
reg_join(error_addr_high, error_addr_low, &error_addr);
}
/* Clear Status */
- iowrite32be(TSI148_LCSR_VEAT_VESCL,
- tsi148_bridge->base + TSI148_LCSR_VEAT);
+ iowrite32be(TSI148_LCSR_VEAT_VESCL, bridge->base + TSI148_LCSR_VEAT);
return TSI148_LCSR_INTC_VERRC;
}
/*
* Wake up IACK queue.
*/
-static u32 tsi148_IACK_irqhandler(void)
+static u32 tsi148_IACK_irqhandler(struct tsi148_driver *bridge)
{
- printk("tsi148_IACK_irqhandler\n");
- wake_up(&iack_queue);
+ wake_up(&(bridge->iack_queue));
return TSI148_LCSR_INTC_IACKC;
}
/*
* Calling VME bus interrupt callback if provided.
*/
-static u32 tsi148_VIRQ_irqhandler(u32 stat)
+static u32 tsi148_VIRQ_irqhandler(struct vme_bridge *tsi148_bridge,
+ u32 stat)
{
int vec, i, serviced = 0;
- void (*call)(int, int, void *);
- void *priv_data;
+ struct tsi148_driver *bridge;
+
+ bridge = tsi148_bridge->driver_priv;
for (i = 7; i > 0; i--) {
if (stat & (1 << i)) {
* 8-bit IACK cycles on the bus, read from offset
* 3.
*/
- vec = ioread8(tsi148_bridge->base +
- TSI148_LCSR_VIACK[i] + 3);
+ vec = ioread8(bridge->base + TSI148_LCSR_VIACK[i] + 3);
- call = tsi148_bridge->irq[i - 1].callback[vec].func;
- priv_data =
- tsi148_bridge->irq[i-1].callback[vec].priv_data;
-
- if (call != NULL)
- call(i, vec, priv_data);
- else
- printk("Spurilous VME interrupt, level:%x, "
- "vector:%x\n", i, vec);
+ vme_irq_handler(tsi148_bridge, i, vec);
serviced |= (1 << i);
}
* Top level interrupt handler. Clears appropriate interrupt status bits and
* then calls appropriate sub handler(s).
*/
-static irqreturn_t tsi148_irqhandler(int irq, void *dev_id)
+static irqreturn_t tsi148_irqhandler(int irq, void *ptr)
{
u32 stat, enable, serviced = 0;
+ struct vme_bridge *tsi148_bridge;
+ struct tsi148_driver *bridge;
+
+ tsi148_bridge = ptr;
+
+ bridge = tsi148_bridge->driver_priv;
/* Determine which interrupts are unmasked and set */
- enable = ioread32be(tsi148_bridge->base + TSI148_LCSR_INTEO);
- stat = ioread32be(tsi148_bridge->base + TSI148_LCSR_INTS);
+ enable = ioread32be(bridge->base + TSI148_LCSR_INTEO);
+ stat = ioread32be(bridge->base + TSI148_LCSR_INTS);
/* Only look at unmasked interrupts */
stat &= enable;
/* Call subhandlers as appropriate */
/* DMA irqs */
if (stat & (TSI148_LCSR_INTS_DMA1S | TSI148_LCSR_INTS_DMA0S))
- serviced |= tsi148_DMA_irqhandler(stat);
+ serviced |= tsi148_DMA_irqhandler(bridge, stat);
/* Location monitor irqs */
if (stat & (TSI148_LCSR_INTS_LM3S | TSI148_LCSR_INTS_LM2S |
TSI148_LCSR_INTS_LM1S | TSI148_LCSR_INTS_LM0S))
- serviced |= tsi148_LM_irqhandler(stat);
+ serviced |= tsi148_LM_irqhandler(bridge, stat);
/* Mail box irqs */
if (stat & (TSI148_LCSR_INTS_MB3S | TSI148_LCSR_INTS_MB2S |
TSI148_LCSR_INTS_MB1S | TSI148_LCSR_INTS_MB0S))
- serviced |= tsi148_MB_irqhandler(stat);
+ serviced |= tsi148_MB_irqhandler(bridge, stat);
/* PCI bus error */
if (stat & TSI148_LCSR_INTS_PERRS)
- serviced |= tsi148_PERR_irqhandler();
+ serviced |= tsi148_PERR_irqhandler(bridge);
/* VME bus error */
if (stat & TSI148_LCSR_INTS_VERRS)
- serviced |= tsi148_VERR_irqhandler();
+ serviced |= tsi148_VERR_irqhandler(tsi148_bridge);
/* IACK irq */
if (stat & TSI148_LCSR_INTS_IACKS)
- serviced |= tsi148_IACK_irqhandler();
+ serviced |= tsi148_IACK_irqhandler(bridge);
/* VME bus irqs */
if (stat & (TSI148_LCSR_INTS_IRQ7S | TSI148_LCSR_INTS_IRQ6S |
TSI148_LCSR_INTS_IRQ5S | TSI148_LCSR_INTS_IRQ4S |
TSI148_LCSR_INTS_IRQ3S | TSI148_LCSR_INTS_IRQ2S |
TSI148_LCSR_INTS_IRQ1S))
- serviced |= tsi148_VIRQ_irqhandler(stat);
+ serviced |= tsi148_VIRQ_irqhandler(tsi148_bridge, stat);
/* Clear serviced interrupts */
- iowrite32be(serviced, tsi148_bridge->base + TSI148_LCSR_INTC);
+ iowrite32be(serviced, bridge->base + TSI148_LCSR_INTC);
return IRQ_HANDLED;
}
-static int tsi148_irq_init(struct vme_bridge *bridge)
+static int tsi148_irq_init(struct vme_bridge *tsi148_bridge)
{
int result;
unsigned int tmp;
struct pci_dev *pdev;
+ struct tsi148_driver *bridge;
+
+ pdev = container_of(tsi148_bridge->parent, struct pci_dev, dev);
- /* Need pdev */
- pdev = container_of(bridge->parent, struct pci_dev, dev);
+ bridge = tsi148_bridge->driver_priv;
/* Initialise list for VME bus errors */
- INIT_LIST_HEAD(&(bridge->vme_errors));
+ INIT_LIST_HEAD(&(tsi148_bridge->vme_errors));
+
+ mutex_init(&(tsi148_bridge->irq_mtx));
result = request_irq(pdev->irq,
tsi148_irqhandler,
IRQF_SHARED,
- driver_name, pdev);
+ driver_name, tsi148_bridge);
if (result) {
dev_err(&pdev->dev, "Can't get assigned pci irq vector %02X\n",
pdev->irq);
TSI148_LCSR_INTEO_PERREO | TSI148_LCSR_INTEO_VERREO |
TSI148_LCSR_INTEO_IACKEO;
- /* XXX This leaves the following interrupts masked.
+ /* This leaves the following interrupts masked.
* TSI148_LCSR_INTEO_VIEEO
* TSI148_LCSR_INTEO_SYSFLEO
* TSI148_LCSR_INTEO_ACFLEO
return 0;
}
-static void tsi148_irq_exit(struct pci_dev *pdev)
+static void tsi148_irq_exit(struct tsi148_driver *bridge, struct pci_dev *pdev)
{
/* Turn off interrupts */
- iowrite32be(0x0, tsi148_bridge->base + TSI148_LCSR_INTEO);
- iowrite32be(0x0, tsi148_bridge->base + TSI148_LCSR_INTEN);
+ iowrite32be(0x0, bridge->base + TSI148_LCSR_INTEO);
+ iowrite32be(0x0, bridge->base + TSI148_LCSR_INTEN);
/* Clear all interrupts */
- iowrite32be(0xFFFFFFFF, tsi148_bridge->base + TSI148_LCSR_INTC);
+ iowrite32be(0xFFFFFFFF, bridge->base + TSI148_LCSR_INTC);
/* Detach interrupt handler */
free_irq(pdev->irq, pdev);
/*
* Check to see if an IACk has been received, return true (1) or false (0).
*/
-int tsi148_iack_received(void)
+int tsi148_iack_received(struct tsi148_driver *bridge)
{
u32 tmp;
- tmp = ioread32be(tsi148_bridge->base + TSI148_LCSR_VICR);
+ tmp = ioread32be(bridge->base + TSI148_LCSR_VICR);
if (tmp & TSI148_LCSR_VICR_IRQS)
return 0;
}
/*
- * Set up an VME interrupt
- */
-int tsi148_request_irq(int level, int statid,
- void (*callback)(int level, int vector, void *priv_data),
- void *priv_data)
-{
- u32 tmp;
-
- /* Get semaphore */
- down(&(vme_irq));
-
- if(tsi148_bridge->irq[level - 1].callback[statid].func) {
- up(&(vme_irq));
- printk("VME Interrupt already taken\n");
- return -EBUSY;
- }
-
-
- tsi148_bridge->irq[level - 1].count++;
- tsi148_bridge->irq[level - 1].callback[statid].priv_data = priv_data;
- tsi148_bridge->irq[level - 1].callback[statid].func = callback;
-
- /* Enable IRQ level */
- tmp = ioread32be(tsi148_bridge->base + TSI148_LCSR_INTEO);
- tmp |= TSI148_LCSR_INTEO_IRQEO[level - 1];
- iowrite32be(tmp, tsi148_bridge->base + TSI148_LCSR_INTEO);
-
- tmp = ioread32be(tsi148_bridge->base + TSI148_LCSR_INTEN);
- tmp |= TSI148_LCSR_INTEN_IRQEN[level - 1];
- iowrite32be(tmp, tsi148_bridge->base + TSI148_LCSR_INTEN);
-
- /* Release semaphore */
- up(&(vme_irq));
-
- return 0;
-}
-
-/*
- * Free VME interrupt
+ * Configure VME interrupt
*/
-void tsi148_free_irq(int level, int statid)
+void tsi148_irq_set(struct vme_bridge *tsi148_bridge, int level,
+ int state, int sync)
{
- u32 tmp;
struct pci_dev *pdev;
+ u32 tmp;
+ struct tsi148_driver *bridge;
- /* Get semaphore */
- down(&(vme_irq));
-
- tsi148_bridge->irq[level - 1].count--;
+ bridge = tsi148_bridge->driver_priv;
- /* Disable IRQ level if no more interrupts attached at this level*/
- if (tsi148_bridge->irq[level - 1].count == 0) {
- tmp = ioread32be(tsi148_bridge->base + TSI148_LCSR_INTEN);
+ /* We need to do the ordering differently for enabling and disabling */
+ if (state == 0) {
+ tmp = ioread32be(bridge->base + TSI148_LCSR_INTEN);
tmp &= ~TSI148_LCSR_INTEN_IRQEN[level - 1];
- iowrite32be(tmp, tsi148_bridge->base + TSI148_LCSR_INTEN);
+ iowrite32be(tmp, bridge->base + TSI148_LCSR_INTEN);
- tmp = ioread32be(tsi148_bridge->base + TSI148_LCSR_INTEO);
+ tmp = ioread32be(bridge->base + TSI148_LCSR_INTEO);
tmp &= ~TSI148_LCSR_INTEO_IRQEO[level - 1];
- iowrite32be(tmp, tsi148_bridge->base + TSI148_LCSR_INTEO);
+ iowrite32be(tmp, bridge->base + TSI148_LCSR_INTEO);
- pdev = container_of(tsi148_bridge->parent, struct pci_dev, dev);
+ if (sync != 0) {
+ pdev = container_of(tsi148_bridge->parent,
+ struct pci_dev, dev);
- synchronize_irq(pdev->irq);
- }
-
- tsi148_bridge->irq[level - 1].callback[statid].func = NULL;
- tsi148_bridge->irq[level - 1].callback[statid].priv_data = NULL;
+ synchronize_irq(pdev->irq);
+ }
+ } else {
+ tmp = ioread32be(bridge->base + TSI148_LCSR_INTEO);
+ tmp |= TSI148_LCSR_INTEO_IRQEO[level - 1];
+ iowrite32be(tmp, bridge->base + TSI148_LCSR_INTEO);
- /* Release semaphore */
- up(&(vme_irq));
+ tmp = ioread32be(bridge->base + TSI148_LCSR_INTEN);
+ tmp |= TSI148_LCSR_INTEN_IRQEN[level - 1];
+ iowrite32be(tmp, bridge->base + TSI148_LCSR_INTEN);
+ }
}
/*
* Generate a VME bus interrupt at the requested level & vector. Wait for
* interrupt to be acked.
- *
- * Only one interrupt can be generated at a time - so add a semaphore.
*/
-int tsi148_generate_irq(int level, int statid)
+int tsi148_irq_generate(struct vme_bridge *tsi148_bridge, int level, int statid)
{
u32 tmp;
+ struct tsi148_driver *bridge;
+
+ bridge = tsi148_bridge->driver_priv;
- /* Get semaphore */
- down(&(vme_int));
+ mutex_lock(&(bridge->vme_int));
/* Read VICR register */
- tmp = ioread32be(tsi148_bridge->base + TSI148_LCSR_VICR);
+ tmp = ioread32be(bridge->base + TSI148_LCSR_VICR);
/* Set Status/ID */
tmp = (tmp & ~TSI148_LCSR_VICR_STID_M) |
(statid & TSI148_LCSR_VICR_STID_M);
- iowrite32be(tmp, tsi148_bridge->base + TSI148_LCSR_VICR);
+ iowrite32be(tmp, bridge->base + TSI148_LCSR_VICR);
/* Assert VMEbus IRQ */
tmp = tmp | TSI148_LCSR_VICR_IRQL[level];
- iowrite32be(tmp, tsi148_bridge->base + TSI148_LCSR_VICR);
+ iowrite32be(tmp, bridge->base + TSI148_LCSR_VICR);
/* XXX Consider implementing a timeout? */
- wait_event_interruptible(iack_queue, tsi148_iack_received());
+ wait_event_interruptible(bridge->iack_queue,
+ tsi148_iack_received(bridge));
- /* Release semaphore */
- up(&(vme_int));
+ mutex_unlock(&(bridge->vme_int));
return 0;
}
/*
* Find the first error in this address range
*/
-static struct vme_bus_error *tsi148_find_error(vme_address_t aspace,
- unsigned long long address, size_t count)
+static struct vme_bus_error *tsi148_find_error(struct vme_bridge *tsi148_bridge,
+ vme_address_t aspace, unsigned long long address, size_t count)
{
struct list_head *err_pos;
struct vme_bus_error *vme_err, *valid = NULL;
/*
* Clear errors in the provided address range.
*/
-static void tsi148_clear_errors(vme_address_t aspace,
- unsigned long long address, size_t count)
+static void tsi148_clear_errors(struct vme_bridge *tsi148_bridge,
+ vme_address_t aspace, unsigned long long address, size_t count)
{
struct list_head *err_pos, *temp;
struct vme_bus_error *vme_err;
unsigned int vme_bound_low, vme_bound_high;
unsigned int pci_offset_low, pci_offset_high;
unsigned long long vme_bound, pci_offset;
+ struct tsi148_driver *bridge;
-#if 0
- printk("Set slave image %d to:\n", image->number);
- printk("\tEnabled: %s\n", (enabled == 1)? "yes" : "no");
- printk("\tVME Base:0x%llx\n", vme_base);
- printk("\tWindow Size:0x%llx\n", size);
- printk("\tPCI Base:0x%lx\n", (unsigned long)pci_base);
- printk("\tAddress Space:0x%x\n", aspace);
- printk("\tTransfer Cycle Properties:0x%x\n", cycle);
-#endif
+ bridge = image->parent->driver_priv;
i = image->number;
return -EINVAL;
}
-#if 0
- printk("\tVME Bound:0x%llx\n", vme_bound);
- printk("\tPCI Offset:0x%llx\n", pci_offset);
-#endif
-
/* Disable while we are mucking around */
- temp_ctl = ioread32be(tsi148_bridge->base + TSI148_LCSR_IT[i] +
+ temp_ctl = ioread32be(bridge->base + TSI148_LCSR_IT[i] +
TSI148_LCSR_OFFSET_ITAT);
temp_ctl &= ~TSI148_LCSR_ITAT_EN;
- iowrite32be(temp_ctl, tsi148_bridge->base + TSI148_LCSR_IT[i] +
+ iowrite32be(temp_ctl, bridge->base + TSI148_LCSR_IT[i] +
TSI148_LCSR_OFFSET_ITAT);
/* Setup mapping */
- iowrite32be(vme_base_high, tsi148_bridge->base + TSI148_LCSR_IT[i] +
+ iowrite32be(vme_base_high, bridge->base + TSI148_LCSR_IT[i] +
TSI148_LCSR_OFFSET_ITSAU);
- iowrite32be(vme_base_low, tsi148_bridge->base + TSI148_LCSR_IT[i] +
+ iowrite32be(vme_base_low, bridge->base + TSI148_LCSR_IT[i] +
TSI148_LCSR_OFFSET_ITSAL);
- iowrite32be(vme_bound_high, tsi148_bridge->base + TSI148_LCSR_IT[i] +
+ iowrite32be(vme_bound_high, bridge->base + TSI148_LCSR_IT[i] +
TSI148_LCSR_OFFSET_ITEAU);
- iowrite32be(vme_bound_low, tsi148_bridge->base + TSI148_LCSR_IT[i] +
+ iowrite32be(vme_bound_low, bridge->base + TSI148_LCSR_IT[i] +
TSI148_LCSR_OFFSET_ITEAL);
- iowrite32be(pci_offset_high, tsi148_bridge->base + TSI148_LCSR_IT[i] +
+ iowrite32be(pci_offset_high, bridge->base + TSI148_LCSR_IT[i] +
TSI148_LCSR_OFFSET_ITOFU);
- iowrite32be(pci_offset_low, tsi148_bridge->base + TSI148_LCSR_IT[i] +
+ iowrite32be(pci_offset_low, bridge->base + TSI148_LCSR_IT[i] +
TSI148_LCSR_OFFSET_ITOFL);
-/* XXX Prefetch stuff currently unsupported */
-#if 0
-
- for (x = 0; x < 4; x++) {
- if ((64 << x) >= vmeIn->prefetchSize) {
- break;
- }
- }
- if (x == 4)
- x--;
- temp_ctl |= (x << 16);
-
- if (vmeIn->prefetchThreshold)
- if (vmeIn->prefetchThreshold)
- temp_ctl |= 0x40000;
-#endif
-
/* Setup 2eSST speeds */
temp_ctl &= ~TSI148_LCSR_ITAT_2eSSTM_M;
switch (cycle & (VME_2eSST160 | VME_2eSST267 | VME_2eSST320)) {
temp_ctl |= TSI148_LCSR_ITAT_DATA;
/* Write ctl reg without enable */
- iowrite32be(temp_ctl, tsi148_bridge->base + TSI148_LCSR_IT[i] +
+ iowrite32be(temp_ctl, bridge->base + TSI148_LCSR_IT[i] +
TSI148_LCSR_OFFSET_ITAT);
if (enabled)
temp_ctl |= TSI148_LCSR_ITAT_EN;
- iowrite32be(temp_ctl, tsi148_bridge->base + TSI148_LCSR_IT[i] +
+ iowrite32be(temp_ctl, bridge->base + TSI148_LCSR_IT[i] +
TSI148_LCSR_OFFSET_ITAT);
return 0;
/*
* Get slave window configuration.
- *
- * XXX Prefetch currently unsupported.
*/
int tsi148_slave_get(struct vme_slave_resource *image, int *enabled,
unsigned long long *vme_base, unsigned long long *size,
unsigned int vme_bound_low, vme_bound_high;
unsigned int pci_offset_low, pci_offset_high;
unsigned long long vme_bound, pci_offset;
+ struct tsi148_driver *bridge;
+ bridge = image->parent->driver_priv;
i = image->number;
/* Read registers */
- ctl = ioread32be(tsi148_bridge->base + TSI148_LCSR_IT[i] +
+ ctl = ioread32be(bridge->base + TSI148_LCSR_IT[i] +
TSI148_LCSR_OFFSET_ITAT);
- vme_base_high = ioread32be(tsi148_bridge->base + TSI148_LCSR_IT[i] +
+ vme_base_high = ioread32be(bridge->base + TSI148_LCSR_IT[i] +
TSI148_LCSR_OFFSET_ITSAU);
- vme_base_low = ioread32be(tsi148_bridge->base + TSI148_LCSR_IT[i] +
+ vme_base_low = ioread32be(bridge->base + TSI148_LCSR_IT[i] +
TSI148_LCSR_OFFSET_ITSAL);
- vme_bound_high = ioread32be(tsi148_bridge->base + TSI148_LCSR_IT[i] +
+ vme_bound_high = ioread32be(bridge->base + TSI148_LCSR_IT[i] +
TSI148_LCSR_OFFSET_ITEAU);
- vme_bound_low = ioread32be(tsi148_bridge->base + TSI148_LCSR_IT[i] +
+ vme_bound_low = ioread32be(bridge->base + TSI148_LCSR_IT[i] +
TSI148_LCSR_OFFSET_ITEAL);
- pci_offset_high = ioread32be(tsi148_bridge->base + TSI148_LCSR_IT[i] +
+ pci_offset_high = ioread32be(bridge->base + TSI148_LCSR_IT[i] +
TSI148_LCSR_OFFSET_ITOFU);
- pci_offset_low = ioread32be(tsi148_bridge->base + TSI148_LCSR_IT[i] +
+ pci_offset_low = ioread32be(bridge->base + TSI148_LCSR_IT[i] +
TSI148_LCSR_OFFSET_ITOFL);
/* Convert 64-bit variables to 2x 32-bit variables */
unsigned long long existing_size;
int retval = 0;
struct pci_dev *pdev;
+ struct vme_bridge *tsi148_bridge;
+
+ tsi148_bridge = image->parent;
/* Find pci_dev container of dev */
if (tsi148_bridge->parent == NULL) {
}
pdev = container_of(tsi148_bridge->parent, struct pci_dev, dev);
- existing_size = (unsigned long long)(image->pci_resource.end -
- image->pci_resource.start);
+ existing_size = (unsigned long long)(image->bus_resource.end -
+ image->bus_resource.start);
/* If the existing size is OK, return */
- if (existing_size == (size - 1))
+ if ((size != 0) && (existing_size == (size - 1)))
return 0;
if (existing_size != 0) {
iounmap(image->kern_base);
image->kern_base = NULL;
- if (image->pci_resource.name != NULL)
- kfree(image->pci_resource.name);
- release_resource(&(image->pci_resource));
- memset(&(image->pci_resource), 0, sizeof(struct resource));
+ if (image->bus_resource.name != NULL)
+ kfree(image->bus_resource.name);
+ release_resource(&(image->bus_resource));
+ memset(&(image->bus_resource), 0, sizeof(struct resource));
}
- if (image->pci_resource.name == NULL) {
- image->pci_resource.name = kmalloc(VMENAMSIZ+3, GFP_KERNEL);
- if (image->pci_resource.name == NULL) {
+ /* Exit here if size is zero */
+ if (size == 0) {
+ return 0;
+ }
+
+ if (image->bus_resource.name == NULL) {
+ image->bus_resource.name = kmalloc(VMENAMSIZ+3, GFP_KERNEL);
+ if (image->bus_resource.name == NULL) {
printk(KERN_ERR "Unable to allocate memory for resource"
" name\n");
retval = -ENOMEM;
}
}
- sprintf((char *)image->pci_resource.name, "%s.%d", tsi148_bridge->name,
+ sprintf((char *)image->bus_resource.name, "%s.%d", tsi148_bridge->name,
image->number);
- image->pci_resource.start = 0;
- image->pci_resource.end = (unsigned long)size;
- image->pci_resource.flags = IORESOURCE_MEM;
+ image->bus_resource.start = 0;
+ image->bus_resource.end = (unsigned long)size;
+ image->bus_resource.flags = IORESOURCE_MEM;
retval = pci_bus_alloc_resource(pdev->bus,
- &(image->pci_resource), size, size, PCIBIOS_MIN_MEM,
+ &(image->bus_resource), size, size, PCIBIOS_MIN_MEM,
0, NULL, NULL);
if (retval) {
printk(KERN_ERR "Failed to allocate mem resource for "
"window %d size 0x%lx start 0x%lx\n",
image->number, (unsigned long)size,
- (unsigned long)image->pci_resource.start);
+ (unsigned long)image->bus_resource.start);
goto err_resource;
}
image->kern_base = ioremap_nocache(
- image->pci_resource.start, size);
+ image->bus_resource.start, size);
if (image->kern_base == NULL) {
printk(KERN_ERR "Failed to remap resource\n");
retval = -ENOMEM;
iounmap(image->kern_base);
image->kern_base = NULL;
err_remap:
- release_resource(&(image->pci_resource));
+ release_resource(&(image->bus_resource));
err_resource:
- kfree(image->pci_resource.name);
- memset(&(image->pci_resource), 0, sizeof(struct resource));
+ kfree(image->bus_resource.name);
+ memset(&(image->bus_resource), 0, sizeof(struct resource));
err_name:
return retval;
}
{
iounmap(image->kern_base);
image->kern_base = NULL;
- release_resource(&(image->pci_resource));
- kfree(image->pci_resource.name);
- memset(&(image->pci_resource), 0, sizeof(struct resource));
+ release_resource(&(image->bus_resource));
+ kfree(image->bus_resource.name);
+ memset(&(image->bus_resource), 0, sizeof(struct resource));
}
/*
unsigned int pci_bound_low, pci_bound_high;
unsigned int vme_offset_low, vme_offset_high;
unsigned long long pci_bound, vme_offset, pci_base;
+ struct tsi148_driver *bridge;
+
+ bridge = image->parent->driver_priv;
/* Verify input data */
if (vme_base & 0xFFFF) {
- printk("Invalid VME Window alignment\n");
+ printk(KERN_ERR "Invalid VME Window alignment\n");
retval = -EINVAL;
goto err_window;
}
- if (size < 0x10000) {
- printk("Invalid VME Window size\n");
+
+ if ((size == 0) && (enabled != 0)) {
+ printk(KERN_ERR "Size must be non-zero for enabled windows\n");
retval = -EINVAL;
goto err_window;
}
spin_lock(&(image->lock));
/* Let's allocate the resource here rather than further up the stack as
- * it avoids pushing loads of bus dependant stuff up the stack
+ * it avoids pushing loads of bus dependant stuff up the stack. If size
+ * is zero, any existing resource will be freed.
*/
retval = tsi148_alloc_resource(image, size);
if (retval) {
spin_unlock(&(image->lock));
- printk(KERN_ERR "Unable to allocate memory for resource "
- "name\n");
- retval = -ENOMEM;
+ printk(KERN_ERR "Unable to allocate memory for "
+ "resource\n");
goto err_res;
}
- pci_base = (unsigned long long)image->pci_resource.start;
-
+ if (size == 0) {
+ pci_base = 0;
+ pci_bound = 0;
+ vme_offset = 0;
+ } else {
+ pci_base = (unsigned long long)image->bus_resource.start;
- /*
- * Bound address is a valid address for the window, adjust
- * according to window granularity.
- */
- pci_bound = pci_base + (size - 0x10000);
- vme_offset = vme_base - pci_base;
+ /*
+ * Bound address is a valid address for the window, adjust
+ * according to window granularity.
+ */
+ pci_bound = pci_base + (size - 0x10000);
+ vme_offset = vme_base - pci_base;
+ }
/* Convert 64-bit variables to 2x 32-bit variables */
reg_split(pci_base, &pci_base_high, &pci_base_low);
if (pci_base_low & 0xFFFF) {
spin_unlock(&(image->lock));
- printk("Invalid PCI base alignment\n");
+ printk(KERN_ERR "Invalid PCI base alignment\n");
retval = -EINVAL;
goto err_gran;
}
if (pci_bound_low & 0xFFFF) {
spin_unlock(&(image->lock));
- printk("Invalid PCI bound alignment\n");
+ printk(KERN_ERR "Invalid PCI bound alignment\n");
retval = -EINVAL;
goto err_gran;
}
if (vme_offset_low & 0xFFFF) {
spin_unlock(&(image->lock));
- printk("Invalid VME Offset alignment\n");
+ printk(KERN_ERR "Invalid VME Offset alignment\n");
retval = -EINVAL;
goto err_gran;
}
i = image->number;
/* Disable while we are mucking around */
- temp_ctl = ioread32be(tsi148_bridge->base + TSI148_LCSR_OT[i] +
+ temp_ctl = ioread32be(bridge->base + TSI148_LCSR_OT[i] +
TSI148_LCSR_OFFSET_OTAT);
temp_ctl &= ~TSI148_LCSR_OTAT_EN;
- iowrite32be(temp_ctl, tsi148_bridge->base + TSI148_LCSR_OT[i] +
+ iowrite32be(temp_ctl, bridge->base + TSI148_LCSR_OT[i] +
TSI148_LCSR_OFFSET_OTAT);
-/* XXX Prefetch stuff currently unsupported */
-#if 0
- if (vmeOut->prefetchEnable) {
- temp_ctl |= 0x40000;
- for (x = 0; x < 4; x++) {
- if ((2 << x) >= vmeOut->prefetchSize)
- break;
- }
- if (x == 4)
- x = 3;
- temp_ctl |= (x << 16);
- }
-#endif
-
/* Setup 2eSST speeds */
temp_ctl &= ~TSI148_LCSR_OTAT_2eSSTM_M;
switch (cycle & (VME_2eSST160 | VME_2eSST267 | VME_2eSST320)) {
temp_ctl |= TSI148_LCSR_OTAT_TM_2eSST;
}
if (cycle & VME_2eSSTB) {
- printk("Currently not setting Broadcast Select Registers\n");
+ printk(KERN_WARNING "Currently not setting Broadcast Select "
+ "Registers\n");
temp_ctl &= ~TSI148_LCSR_OTAT_TM_M;
temp_ctl |= TSI148_LCSR_OTAT_TM_2eSSTB;
}
break;
default:
spin_unlock(&(image->lock));
- printk("Invalid data width\n");
+ printk(KERN_ERR "Invalid data width\n");
retval = -EINVAL;
goto err_dwidth;
}
break;
default:
spin_unlock(&(image->lock));
- printk("Invalid address space\n");
+ printk(KERN_ERR "Invalid address space\n");
retval = -EINVAL;
goto err_aspace;
break;
temp_ctl |= TSI148_LCSR_OTAT_PGM;
/* Setup mapping */
- iowrite32be(pci_base_high, tsi148_bridge->base + TSI148_LCSR_OT[i] +
+ iowrite32be(pci_base_high, bridge->base + TSI148_LCSR_OT[i] +
TSI148_LCSR_OFFSET_OTSAU);
- iowrite32be(pci_base_low, tsi148_bridge->base + TSI148_LCSR_OT[i] +
+ iowrite32be(pci_base_low, bridge->base + TSI148_LCSR_OT[i] +
TSI148_LCSR_OFFSET_OTSAL);
- iowrite32be(pci_bound_high, tsi148_bridge->base + TSI148_LCSR_OT[i] +
+ iowrite32be(pci_bound_high, bridge->base + TSI148_LCSR_OT[i] +
TSI148_LCSR_OFFSET_OTEAU);
- iowrite32be(pci_bound_low, tsi148_bridge->base + TSI148_LCSR_OT[i] +
+ iowrite32be(pci_bound_low, bridge->base + TSI148_LCSR_OT[i] +
TSI148_LCSR_OFFSET_OTEAL);
- iowrite32be(vme_offset_high, tsi148_bridge->base + TSI148_LCSR_OT[i] +
+ iowrite32be(vme_offset_high, bridge->base + TSI148_LCSR_OT[i] +
TSI148_LCSR_OFFSET_OTOFU);
- iowrite32be(vme_offset_low, tsi148_bridge->base + TSI148_LCSR_OT[i] +
+ iowrite32be(vme_offset_low, bridge->base + TSI148_LCSR_OT[i] +
TSI148_LCSR_OFFSET_OTOFL);
-/* XXX We need to deal with OTBS */
-#if 0
- iowrite32be(vmeOut->bcastSelect2esst, tsi148_bridge->base +
- TSI148_LCSR_OT[i] + TSI148_LCSR_OFFSET_OTBS);
-#endif
-
/* Write ctl reg without enable */
- iowrite32be(temp_ctl, tsi148_bridge->base + TSI148_LCSR_OT[i] +
+ iowrite32be(temp_ctl, bridge->base + TSI148_LCSR_OT[i] +
TSI148_LCSR_OFFSET_OTAT);
if (enabled)
temp_ctl |= TSI148_LCSR_OTAT_EN;
- iowrite32be(temp_ctl, tsi148_bridge->base + TSI148_LCSR_OT[i] +
+ iowrite32be(temp_ctl, bridge->base + TSI148_LCSR_OT[i] +
TSI148_LCSR_OFFSET_OTAT);
spin_unlock(&(image->lock));
unsigned int vme_offset_low, vme_offset_high;
unsigned long long pci_base, pci_bound, vme_offset;
+ struct tsi148_driver *bridge;
+
+ bridge = image->parent->driver_priv;
i = image->number;
- ctl = ioread32be(tsi148_bridge->base + TSI148_LCSR_OT[i] +
+ ctl = ioread32be(bridge->base + TSI148_LCSR_OT[i] +
TSI148_LCSR_OFFSET_OTAT);
- pci_base_high = ioread32be(tsi148_bridge->base + TSI148_LCSR_OT[i] +
+ pci_base_high = ioread32be(bridge->base + TSI148_LCSR_OT[i] +
TSI148_LCSR_OFFSET_OTSAU);
- pci_base_low = ioread32be(tsi148_bridge->base + TSI148_LCSR_OT[i] +
+ pci_base_low = ioread32be(bridge->base + TSI148_LCSR_OT[i] +
TSI148_LCSR_OFFSET_OTSAL);
- pci_bound_high = ioread32be(tsi148_bridge->base + TSI148_LCSR_OT[i] +
+ pci_bound_high = ioread32be(bridge->base + TSI148_LCSR_OT[i] +
TSI148_LCSR_OFFSET_OTEAU);
- pci_bound_low = ioread32be(tsi148_bridge->base + TSI148_LCSR_OT[i] +
+ pci_bound_low = ioread32be(bridge->base + TSI148_LCSR_OT[i] +
TSI148_LCSR_OFFSET_OTEAL);
- vme_offset_high = ioread32be(tsi148_bridge->base + TSI148_LCSR_OT[i] +
+ vme_offset_high = ioread32be(bridge->base + TSI148_LCSR_OT[i] +
TSI148_LCSR_OFFSET_OTOFU);
- vme_offset_low = ioread32be(tsi148_bridge->base + TSI148_LCSR_OT[i] +
+ vme_offset_low = ioread32be(bridge->base + TSI148_LCSR_OT[i] +
TSI148_LCSR_OFFSET_OTOFL);
/* Convert 64-bit variables to 2x 32-bit variables */
vme_cycle_t cycle;
vme_width_t dwidth;
struct vme_bus_error *vme_err = NULL;
+ struct vme_bridge *tsi148_bridge;
+
+ tsi148_bridge = image->parent;
spin_lock(&(image->lock));
__tsi148_master_get(image, &enabled, &vme_base, &size, &aspace, &cycle,
&dwidth);
- vme_err = tsi148_find_error(aspace, vme_base + offset, count);
+ vme_err = tsi148_find_error(tsi148_bridge, aspace, vme_base + offset,
+ count);
if(vme_err != NULL) {
dev_err(image->parent->parent, "First VME read error detected "
"an at address 0x%llx\n", vme_err->address);
retval = vme_err->address - (vme_base + offset);
/* Clear down save errors in this address range */
- tsi148_clear_errors(aspace, vme_base + offset, count);
+ tsi148_clear_errors(tsi148_bridge, aspace, vme_base + offset,
+ count);
}
skip_chk:
}
-/* XXX We need to change vme_master_resource->sem to a spinlock so that read
- * and write functions can be used in an interrupt context
- */
ssize_t tsi148_master_write(struct vme_master_resource *image, void *buf,
size_t count, loff_t offset)
{
vme_width_t dwidth;
struct vme_bus_error *vme_err = NULL;
+ struct vme_bridge *tsi148_bridge;
+ struct tsi148_driver *bridge;
+
+ tsi148_bridge = image->parent;
+
+ bridge = tsi148_bridge->driver_priv;
spin_lock(&(image->lock));
__tsi148_master_get(image, &enabled, &vme_base, &size, &aspace, &cycle,
&dwidth);
- ioread16(flush_image->kern_base + 0x7F000);
+ ioread16(bridge->flush_image->kern_base + 0x7F000);
- vme_err = tsi148_find_error(aspace, vme_base + offset, count);
+ vme_err = tsi148_find_error(tsi148_bridge, aspace, vme_base + offset,
+ count);
if(vme_err != NULL) {
printk("First VME write error detected an at address 0x%llx\n",
vme_err->address);
retval = vme_err->address - (vme_base + offset);
/* Clear down save errors in this address range */
- tsi148_clear_errors(aspace, vme_base + offset, count);
+ tsi148_clear_errors(tsi148_bridge, aspace, vme_base + offset,
+ count);
}
skip_chk:
unsigned int pci_addr_high, pci_addr_low;
u32 tmp, result;
int i;
+ struct tsi148_driver *bridge;
+ bridge = image->parent->driver_priv;
/* Find the PCI address that maps to the desired VME address */
i = image->number;
/* Locking as we can only do one of these at a time */
- down(&(vme_rmw));
+ mutex_lock(&(bridge->vme_rmw));
/* Lock image */
spin_lock(&(image->lock));
- pci_addr_high = ioread32be(tsi148_bridge->base + TSI148_LCSR_OT[i] +
+ pci_addr_high = ioread32be(bridge->base + TSI148_LCSR_OT[i] +
TSI148_LCSR_OFFSET_OTSAU);
- pci_addr_low = ioread32be(tsi148_bridge->base + TSI148_LCSR_OT[i] +
+ pci_addr_low = ioread32be(bridge->base + TSI148_LCSR_OT[i] +
TSI148_LCSR_OFFSET_OTSAL);
reg_join(pci_addr_high, pci_addr_low, &pci_addr);
reg_split(pci_addr + offset, &pci_addr_high, &pci_addr_low);
/* Configure registers */
- iowrite32be(mask, tsi148_bridge->base + TSI148_LCSR_RMWEN);
- iowrite32be(compare, tsi148_bridge->base + TSI148_LCSR_RMWC);
- iowrite32be(swap, tsi148_bridge->base + TSI148_LCSR_RMWS);
- iowrite32be(pci_addr_high, tsi148_bridge->base + TSI148_LCSR_RMWAU);
- iowrite32be(pci_addr_low, tsi148_bridge->base + TSI148_LCSR_RMWAL);
+ iowrite32be(mask, bridge->base + TSI148_LCSR_RMWEN);
+ iowrite32be(compare, bridge->base + TSI148_LCSR_RMWC);
+ iowrite32be(swap, bridge->base + TSI148_LCSR_RMWS);
+ iowrite32be(pci_addr_high, bridge->base + TSI148_LCSR_RMWAU);
+ iowrite32be(pci_addr_low, bridge->base + TSI148_LCSR_RMWAL);
/* Enable RMW */
- tmp = ioread32be(tsi148_bridge->base + TSI148_LCSR_VMCTRL);
+ tmp = ioread32be(bridge->base + TSI148_LCSR_VMCTRL);
tmp |= TSI148_LCSR_VMCTRL_RMWEN;
- iowrite32be(tmp, tsi148_bridge->base + TSI148_LCSR_VMCTRL);
+ iowrite32be(tmp, bridge->base + TSI148_LCSR_VMCTRL);
/* Kick process off with a read to the required address. */
result = ioread32be(image->kern_base + offset);
/* Disable RMW */
- tmp = ioread32be(tsi148_bridge->base + TSI148_LCSR_VMCTRL);
+ tmp = ioread32be(bridge->base + TSI148_LCSR_VMCTRL);
tmp &= ~TSI148_LCSR_VMCTRL_RMWEN;
- iowrite32be(tmp, tsi148_bridge->base + TSI148_LCSR_VMCTRL);
+ iowrite32be(tmp, bridge->base + TSI148_LCSR_VMCTRL);
spin_unlock(&(image->lock));
- up(&(vme_rmw));
+ mutex_unlock(&(bridge->vme_rmw));
return result;
}
/*
* Add a link list descriptor to the list
- *
- * XXX Need to handle 2eSST Broadcast select bits
*/
int tsi148_dma_list_add (struct vme_dma_list *list, struct vme_dma_attr *src,
struct vme_dma_attr *dest, size_t count)
dma_addr_t desc_ptr;
int retval = 0;
- /* XXX descriptor must be aligned on 64-bit boundaries */
+ /* Descriptor must be aligned on 64-bit boundaries */
entry = (struct tsi148_dma_entry *)kmalloc(
sizeof(struct tsi148_dma_entry), GFP_KERNEL);
if (entry == NULL) {
/*
* Check to see if the provided DMA channel is busy.
*/
-static int tsi148_dma_busy(int channel)
+static int tsi148_dma_busy(struct vme_bridge *tsi148_bridge, int channel)
{
u32 tmp;
+ struct tsi148_driver *bridge;
+
+ bridge = tsi148_bridge->driver_priv;
- tmp = ioread32be(tsi148_bridge->base + TSI148_LCSR_DMA[channel] +
+ tmp = ioread32be(bridge->base + TSI148_LCSR_DMA[channel] +
TSI148_LCSR_OFFSET_DSTA);
if (tmp & TSI148_LCSR_DSTA_BSY)
dma_addr_t bus_addr;
u32 bus_addr_high, bus_addr_low;
u32 val, dctlreg = 0;
-#if 0
- int x;
-#endif
+ struct tsi148_driver *bridge;
ctrlr = list->parent;
- down(&(ctrlr->sem));
+ bridge = ctrlr->parent->driver_priv;
+
+ mutex_lock(&(ctrlr->mtx));
channel = ctrlr->number;
* Return busy.
*/
/* Need to add to pending here */
- up(&(ctrlr->sem));
+ mutex_unlock(&(ctrlr->mtx));
return -EBUSY;
} else {
list_add(&(list->list), &(ctrlr->running));
}
-#if 0
- /* XXX Still todo */
- for (x = 0; x < 8; x++) { /* vme block size */
- if ((32 << x) >= vmeDma->maxVmeBlockSize) {
- break;
- }
- }
- if (x == 8)
- x = 7;
- dctlreg |= (x << 12);
-
- for (x = 0; x < 8; x++) { /* pci block size */
- if ((32 << x) >= vmeDma->maxPciBlockSize) {
- break;
- }
- }
- if (x == 8)
- x = 7;
- dctlreg |= (x << 4);
-
- if (vmeDma->vmeBackOffTimer) {
- for (x = 1; x < 8; x++) { /* vme timer */
- if ((1 << (x - 1)) >= vmeDma->vmeBackOffTimer) {
- break;
- }
- }
- if (x == 8)
- x = 7;
- dctlreg |= (x << 8);
- }
-
- if (vmeDma->pciBackOffTimer) {
- for (x = 1; x < 8; x++) { /* pci timer */
- if ((1 << (x - 1)) >= vmeDma->pciBackOffTimer) {
- break;
- }
- }
- if (x == 8)
- x = 7;
- dctlreg |= (x << 0);
- }
-#endif
/* Get first bus address and write into registers */
entry = list_first_entry(&(list->entries), struct tsi148_dma_entry,
bus_addr = virt_to_bus(&(entry->descriptor));
- up(&(ctrlr->sem));
+ mutex_unlock(&(ctrlr->mtx));
reg_split(bus_addr, &bus_addr_high, &bus_addr_low);
- iowrite32be(bus_addr_high, tsi148_bridge->base +
+ iowrite32be(bus_addr_high, bridge->base +
TSI148_LCSR_DMA[channel] + TSI148_LCSR_OFFSET_DNLAU);
- iowrite32be(bus_addr_low, tsi148_bridge->base +
+ iowrite32be(bus_addr_low, bridge->base +
TSI148_LCSR_DMA[channel] + TSI148_LCSR_OFFSET_DNLAL);
/* Start the operation */
- iowrite32be(dctlreg | TSI148_LCSR_DCTL_DGO, tsi148_bridge->base +
+ iowrite32be(dctlreg | TSI148_LCSR_DCTL_DGO, bridge->base +
TSI148_LCSR_DMA[channel] + TSI148_LCSR_OFFSET_DCTL);
- wait_event_interruptible(dma_queue[channel], tsi148_dma_busy(channel));
+ wait_event_interruptible(bridge->dma_queue[channel],
+ tsi148_dma_busy(ctrlr->parent, channel));
/*
* Read status register, this register is valid until we kick off a
* new transfer.
*/
- val = ioread32be(tsi148_bridge->base + TSI148_LCSR_DMA[channel] +
+ val = ioread32be(bridge->base + TSI148_LCSR_DMA[channel] +
TSI148_LCSR_OFFSET_DSTA);
if (val & TSI148_LCSR_DSTA_VBE) {
}
/* Remove list from running list */
- down(&(ctrlr->sem));
+ mutex_lock(&(ctrlr->mtx));
list_del(&(list->list));
- up(&(ctrlr->sem));
+ mutex_unlock(&(ctrlr->mtx));
return retval;
}
* This does not enable the LM monitor - that should be done when the first
* callback is attached and disabled when the last callback is removed.
*/
-int tsi148_lm_set(unsigned long long lm_base, vme_address_t aspace,
- vme_cycle_t cycle)
+int tsi148_lm_set(struct vme_lm_resource *lm, unsigned long long lm_base,
+ vme_address_t aspace, vme_cycle_t cycle)
{
u32 lm_base_high, lm_base_low, lm_ctl = 0;
int i;
+ struct tsi148_driver *bridge;
- /* Get semaphore */
- down(&(vme_lm));
+ bridge = lm->parent->driver_priv;
+
+ mutex_lock(&(lm->mtx));
/* If we already have a callback attached, we can't move it! */
- for (i = 0; i < 4; i++) {
- if(lm_callback[i] != NULL) {
- up(&(vme_lm));
+ for (i = 0; i < lm->monitors; i++) {
+ if (bridge->lm_callback[i] != NULL) {
+ mutex_unlock(&(lm->mtx));
printk("Location monitor callback attached, can't "
"reset\n");
return -EBUSY;
lm_ctl |= TSI148_LCSR_LMAT_AS_A64;
break;
default:
- up(&(vme_lm));
+ mutex_unlock(&(lm->mtx));
printk("Invalid address space\n");
return -EINVAL;
break;
reg_split(lm_base, &lm_base_high, &lm_base_low);
- iowrite32be(lm_base_high, tsi148_bridge->base + TSI148_LCSR_LMBAU);
- iowrite32be(lm_base_low, tsi148_bridge->base + TSI148_LCSR_LMBAL);
- iowrite32be(lm_ctl, tsi148_bridge->base + TSI148_LCSR_LMAT);
+ iowrite32be(lm_base_high, bridge->base + TSI148_LCSR_LMBAU);
+ iowrite32be(lm_base_low, bridge->base + TSI148_LCSR_LMBAL);
+ iowrite32be(lm_ctl, bridge->base + TSI148_LCSR_LMAT);
- up(&(vme_lm));
+ mutex_unlock(&(lm->mtx));
return 0;
}
/* Get configuration of the callback monitor and return whether it is enabled
* or disabled.
*/
-int tsi148_lm_get(unsigned long long *lm_base, vme_address_t *aspace,
- vme_cycle_t *cycle)
+int tsi148_lm_get(struct vme_lm_resource *lm, unsigned long long *lm_base,
+ vme_address_t *aspace, vme_cycle_t *cycle)
{
u32 lm_base_high, lm_base_low, lm_ctl, enabled = 0;
+ struct tsi148_driver *bridge;
+
+ bridge = lm->parent->driver_priv;
- /* Get semaphore */
- down(&(vme_lm));
+ mutex_lock(&(lm->mtx));
- lm_base_high = ioread32be(tsi148_bridge->base + TSI148_LCSR_LMBAU);
- lm_base_low = ioread32be(tsi148_bridge->base + TSI148_LCSR_LMBAL);
- lm_ctl = ioread32be(tsi148_bridge->base + TSI148_LCSR_LMAT);
+ lm_base_high = ioread32be(bridge->base + TSI148_LCSR_LMBAU);
+ lm_base_low = ioread32be(bridge->base + TSI148_LCSR_LMBAL);
+ lm_ctl = ioread32be(bridge->base + TSI148_LCSR_LMAT);
reg_join(lm_base_high, lm_base_low, lm_base);
if (lm_ctl & TSI148_LCSR_LMAT_DATA)
*cycle |= VME_DATA;
- up(&(vme_lm));
+ mutex_unlock(&(lm->mtx));
return enabled;
}
*
* Callback will be passed the monitor triggered.
*/
-int tsi148_lm_attach(int monitor, void (*callback)(int))
+int tsi148_lm_attach(struct vme_lm_resource *lm, int monitor,
+ void (*callback)(int))
{
u32 lm_ctl, tmp;
+ struct tsi148_driver *bridge;
- /* Get semaphore */
- down(&(vme_lm));
+ bridge = lm->parent->driver_priv;
+
+ mutex_lock(&(lm->mtx));
/* Ensure that the location monitor is configured - need PGM or DATA */
- lm_ctl = ioread32be(tsi148_bridge->base + TSI148_LCSR_LMAT);
+ lm_ctl = ioread32be(bridge->base + TSI148_LCSR_LMAT);
if ((lm_ctl & (TSI148_LCSR_LMAT_PGM | TSI148_LCSR_LMAT_DATA)) == 0) {
- up(&(vme_lm));
+ mutex_unlock(&(lm->mtx));
printk("Location monitor not properly configured\n");
return -EINVAL;
}
/* Check that a callback isn't already attached */
- if (lm_callback[monitor] != NULL) {
- up(&(vme_lm));
+ if (bridge->lm_callback[monitor] != NULL) {
+ mutex_unlock(&(lm->mtx));
printk("Existing callback attached\n");
return -EBUSY;
}
/* Attach callback */
- lm_callback[monitor] = callback;
+ bridge->lm_callback[monitor] = callback;
/* Enable Location Monitor interrupt */
- tmp = ioread32be(tsi148_bridge->base + TSI148_LCSR_INTEN);
+ tmp = ioread32be(bridge->base + TSI148_LCSR_INTEN);
tmp |= TSI148_LCSR_INTEN_LMEN[monitor];
- iowrite32be(tmp, tsi148_bridge->base + TSI148_LCSR_INTEN);
+ iowrite32be(tmp, bridge->base + TSI148_LCSR_INTEN);
- tmp = ioread32be(tsi148_bridge->base + TSI148_LCSR_INTEO);
+ tmp = ioread32be(bridge->base + TSI148_LCSR_INTEO);
tmp |= TSI148_LCSR_INTEO_LMEO[monitor];
- iowrite32be(tmp, tsi148_bridge->base + TSI148_LCSR_INTEO);
+ iowrite32be(tmp, bridge->base + TSI148_LCSR_INTEO);
/* Ensure that global Location Monitor Enable set */
if ((lm_ctl & TSI148_LCSR_LMAT_EN) == 0) {
lm_ctl |= TSI148_LCSR_LMAT_EN;
- iowrite32be(lm_ctl, tsi148_bridge->base + TSI148_LCSR_LMAT);
+ iowrite32be(lm_ctl, bridge->base + TSI148_LCSR_LMAT);
}
- up(&(vme_lm));
+ mutex_unlock(&(lm->mtx));
return 0;
}
/*
* Detach a callback function forn a specific location monitor.
*/
-int tsi148_lm_detach(int monitor)
+int tsi148_lm_detach(struct vme_lm_resource *lm, int monitor)
{
u32 lm_en, tmp;
+ struct tsi148_driver *bridge;
+
+ bridge = lm->parent->driver_priv;
- /* Get semaphore */
- down(&(vme_lm));
+ mutex_lock(&(lm->mtx));
/* Disable Location Monitor and ensure previous interrupts are clear */
- lm_en = ioread32be(tsi148_bridge->base + TSI148_LCSR_INTEN);
+ lm_en = ioread32be(bridge->base + TSI148_LCSR_INTEN);
lm_en &= ~TSI148_LCSR_INTEN_LMEN[monitor];
- iowrite32be(lm_en, tsi148_bridge->base + TSI148_LCSR_INTEN);
+ iowrite32be(lm_en, bridge->base + TSI148_LCSR_INTEN);
- tmp = ioread32be(tsi148_bridge->base + TSI148_LCSR_INTEO);
+ tmp = ioread32be(bridge->base + TSI148_LCSR_INTEO);
tmp &= ~TSI148_LCSR_INTEO_LMEO[monitor];
- iowrite32be(tmp, tsi148_bridge->base + TSI148_LCSR_INTEO);
+ iowrite32be(tmp, bridge->base + TSI148_LCSR_INTEO);
iowrite32be(TSI148_LCSR_INTC_LMC[monitor],
- tsi148_bridge->base + TSI148_LCSR_INTEO);
+ bridge->base + TSI148_LCSR_INTC);
/* Detach callback */
- lm_callback[monitor] = NULL;
+ bridge->lm_callback[monitor] = NULL;
/* If all location monitors disabled, disable global Location Monitor */
if ((lm_en & (TSI148_LCSR_INTS_LM0S | TSI148_LCSR_INTS_LM1S |
TSI148_LCSR_INTS_LM2S | TSI148_LCSR_INTS_LM3S)) == 0) {
- tmp = ioread32be(tsi148_bridge->base + TSI148_LCSR_LMAT);
+ tmp = ioread32be(bridge->base + TSI148_LCSR_LMAT);
tmp &= ~TSI148_LCSR_LMAT_EN;
- iowrite32be(tmp, tsi148_bridge->base + TSI148_LCSR_LMAT);
+ iowrite32be(tmp, bridge->base + TSI148_LCSR_LMAT);
}
- up(&(vme_lm));
+ mutex_unlock(&(lm->mtx));
return 0;
}
/*
* Determine Geographical Addressing
*/
-int tsi148_slot_get(void)
+int tsi148_slot_get(struct vme_bridge *tsi148_bridge)
{
u32 slot = 0;
+ struct tsi148_driver *bridge;
+
+ bridge = tsi148_bridge->driver_priv;
+
+ if (!geoid) {
+ slot = ioread32be(bridge->base + TSI148_LCSR_VSTAT);
+ slot = slot & TSI148_LCSR_VSTAT_GA_M;
+ } else
+ slot = geoid;
- slot = ioread32be(tsi148_bridge->base + TSI148_LCSR_VSTAT);
- slot = slot & TSI148_LCSR_VSTAT_GA_M;
return (int)slot;
}
* boards registers, this means there is a fix length 508kB window which must
* be mapped onto PCI memory.
*/
-static int tsi148_crcsr_init(struct pci_dev *pdev)
+static int tsi148_crcsr_init(struct vme_bridge *tsi148_bridge,
+ struct pci_dev *pdev)
{
u32 cbar, crat, vstat;
u32 crcsr_bus_high, crcsr_bus_low;
int retval;
+ struct tsi148_driver *bridge;
+
+ bridge = tsi148_bridge->driver_priv;
/* Allocate mem for CR/CSR image */
- crcsr_kernel = pci_alloc_consistent(pdev, VME_CRCSR_BUF_SIZE,
- &crcsr_bus);
- if (crcsr_kernel == NULL) {
+ bridge->crcsr_kernel = pci_alloc_consistent(pdev, VME_CRCSR_BUF_SIZE,
+ &(bridge->crcsr_bus));
+ if (bridge->crcsr_kernel == NULL) {
dev_err(&pdev->dev, "Failed to allocate memory for CR/CSR "
"image\n");
return -ENOMEM;
}
- memset(crcsr_kernel, 0, VME_CRCSR_BUF_SIZE);
+ memset(bridge->crcsr_kernel, 0, VME_CRCSR_BUF_SIZE);
- reg_split(crcsr_bus, &crcsr_bus_high, &crcsr_bus_low);
+ reg_split(bridge->crcsr_bus, &crcsr_bus_high, &crcsr_bus_low);
- iowrite32be(crcsr_bus_high, tsi148_bridge->base + TSI148_LCSR_CROU);
- iowrite32be(crcsr_bus_low, tsi148_bridge->base + TSI148_LCSR_CROL);
+ iowrite32be(crcsr_bus_high, bridge->base + TSI148_LCSR_CROU);
+ iowrite32be(crcsr_bus_low, bridge->base + TSI148_LCSR_CROL);
/* Ensure that the CR/CSR is configured at the correct offset */
- cbar = ioread32be(tsi148_bridge->base + TSI148_CBAR);
+ cbar = ioread32be(bridge->base + TSI148_CBAR);
cbar = (cbar & TSI148_CRCSR_CBAR_M)>>3;
- vstat = tsi148_slot_get();
+ vstat = tsi148_slot_get(tsi148_bridge);
if (cbar != vstat) {
+ cbar = vstat;
dev_info(&pdev->dev, "Setting CR/CSR offset\n");
- iowrite32be(cbar<<3, tsi148_bridge->base + TSI148_CBAR);
+ iowrite32be(cbar<<3, bridge->base + TSI148_CBAR);
}
dev_info(&pdev->dev, "CR/CSR Offset: %d\n", cbar);
- crat = ioread32be(tsi148_bridge->base + TSI148_LCSR_CRAT);
+ crat = ioread32be(bridge->base + TSI148_LCSR_CRAT);
if (crat & TSI148_LCSR_CRAT_EN) {
dev_info(&pdev->dev, "Enabling CR/CSR space\n");
iowrite32be(crat | TSI148_LCSR_CRAT_EN,
- tsi148_bridge->base + TSI148_LCSR_CRAT);
+ bridge->base + TSI148_LCSR_CRAT);
} else
dev_info(&pdev->dev, "CR/CSR already enabled\n");
* through VME writes.
*/
if(err_chk) {
- retval = tsi148_master_set(flush_image, 1, (vstat * 0x80000),
- 0x80000, VME_CRCSR, VME_SCT, VME_D16);
+ retval = tsi148_master_set(bridge->flush_image, 1,
+ (vstat * 0x80000), 0x80000, VME_CRCSR, VME_SCT,
+ VME_D16);
if (retval)
dev_err(&pdev->dev, "Configuring flush image failed\n");
}
}
-static void tsi148_crcsr_exit(struct pci_dev *pdev)
+static void tsi148_crcsr_exit(struct vme_bridge *tsi148_bridge,
+ struct pci_dev *pdev)
{
u32 crat;
+ struct tsi148_driver *bridge;
+
+ bridge = tsi148_bridge->driver_priv;
/* Turn off CR/CSR space */
- crat = ioread32be(tsi148_bridge->base + TSI148_LCSR_CRAT);
+ crat = ioread32be(bridge->base + TSI148_LCSR_CRAT);
iowrite32be(crat & ~TSI148_LCSR_CRAT_EN,
- tsi148_bridge->base + TSI148_LCSR_CRAT);
+ bridge->base + TSI148_LCSR_CRAT);
/* Free image */
- iowrite32be(0, tsi148_bridge->base + TSI148_LCSR_CROU);
- iowrite32be(0, tsi148_bridge->base + TSI148_LCSR_CROL);
+ iowrite32be(0, bridge->base + TSI148_LCSR_CROU);
+ iowrite32be(0, bridge->base + TSI148_LCSR_CROL);
- pci_free_consistent(pdev, VME_CRCSR_BUF_SIZE, crcsr_kernel, crcsr_bus);
+ pci_free_consistent(pdev, VME_CRCSR_BUF_SIZE, bridge->crcsr_kernel,
+ bridge->crcsr_bus);
}
static int tsi148_probe(struct pci_dev *pdev, const struct pci_device_id *id)
int retval, i, master_num;
u32 data;
struct list_head *pos = NULL;
+ struct vme_bridge *tsi148_bridge;
+ struct tsi148_driver *tsi148_device;
struct vme_master_resource *master_image;
struct vme_slave_resource *slave_image;
struct vme_dma_resource *dma_ctrlr;
+ struct vme_lm_resource *lm;
/* If we want to support more than one of each bridge, we need to
* dynamically generate this so we get one per device
memset(tsi148_bridge, 0, sizeof(struct vme_bridge));
+ tsi148_device = kmalloc(sizeof(struct tsi148_driver), GFP_KERNEL);
+ if (tsi148_device == NULL) {
+ dev_err(&pdev->dev, "Failed to allocate memory for device "
+ "structure\n");
+ retval = -ENOMEM;
+ goto err_driver;
+ }
+
+ memset(tsi148_device, 0, sizeof(struct tsi148_driver));
+
+ tsi148_bridge->driver_priv = tsi148_device;
+
/* Enable the device */
retval = pci_enable_device(pdev);
if (retval) {
}
/* map registers in BAR 0 */
- tsi148_bridge->base = ioremap_nocache(pci_resource_start(pdev, 0), 4096);
- if (!tsi148_bridge->base) {
+ tsi148_device->base = ioremap_nocache(pci_resource_start(pdev, 0),
+ 4096);
+ if (!tsi148_device->base) {
dev_err(&pdev->dev, "Unable to remap CRG region\n");
retval = -EIO;
goto err_remap;
}
/* Check to see if the mapping worked out */
- data = ioread32(tsi148_bridge->base + TSI148_PCFS_ID) & 0x0000FFFF;
+ data = ioread32(tsi148_device->base + TSI148_PCFS_ID) & 0x0000FFFF;
if (data != PCI_VENDOR_ID_TUNDRA) {
dev_err(&pdev->dev, "CRG region check failed\n");
retval = -EIO;
}
/* Initialize wait queues & mutual exclusion flags */
- /* XXX These need to be moved to the vme_bridge structure */
- init_waitqueue_head(&dma_queue[0]);
- init_waitqueue_head(&dma_queue[1]);
- init_waitqueue_head(&iack_queue);
- init_MUTEX(&(vme_int));
- init_MUTEX(&(vme_irq));
- init_MUTEX(&(vme_rmw));
- init_MUTEX(&(vme_lm));
+ init_waitqueue_head(&(tsi148_device->dma_queue[0]));
+ init_waitqueue_head(&(tsi148_device->dma_queue[1]));
+ init_waitqueue_head(&(tsi148_device->iack_queue));
+ mutex_init(&(tsi148_device->vme_int));
+ mutex_init(&(tsi148_device->vme_rmw));
tsi148_bridge->parent = &(pdev->dev);
strcpy(tsi148_bridge->name, driver_name);
master_num = TSI148_MAX_MASTER;
if(err_chk){
master_num--;
- /* XXX */
- flush_image = (struct vme_master_resource *)kmalloc(
- sizeof(struct vme_master_resource), GFP_KERNEL);
- if (flush_image == NULL) {
+
+ tsi148_device->flush_image = (struct vme_master_resource *)
+ kmalloc(sizeof(struct vme_master_resource), GFP_KERNEL);
+ if (tsi148_device->flush_image == NULL) {
dev_err(&pdev->dev, "Failed to allocate memory for "
"flush resource structure\n");
retval = -ENOMEM;
goto err_master;
}
- flush_image->parent = tsi148_bridge;
- spin_lock_init(&(flush_image->lock));
- flush_image->locked = 1;
- flush_image->number = master_num;
- flush_image->address_attr = VME_A16 | VME_A24 | VME_A32 |
- VME_A64;
- flush_image->cycle_attr = VME_SCT | VME_BLT | VME_MBLT |
- VME_2eVME | VME_2eSST | VME_2eSSTB | VME_2eSST160 |
- VME_2eSST267 | VME_2eSST320 | VME_SUPER | VME_USER |
- VME_PROG | VME_DATA;
- flush_image->width_attr = VME_D16 | VME_D32;
- memset(&(flush_image->pci_resource), 0,
+ tsi148_device->flush_image->parent = tsi148_bridge;
+ spin_lock_init(&(tsi148_device->flush_image->lock));
+ tsi148_device->flush_image->locked = 1;
+ tsi148_device->flush_image->number = master_num;
+ tsi148_device->flush_image->address_attr = VME_A16 | VME_A24 |
+ VME_A32 | VME_A64;
+ tsi148_device->flush_image->cycle_attr = VME_SCT | VME_BLT |
+ VME_MBLT | VME_2eVME | VME_2eSST | VME_2eSSTB |
+ VME_2eSST160 | VME_2eSST267 | VME_2eSST320 | VME_SUPER |
+ VME_USER | VME_PROG | VME_DATA;
+ tsi148_device->flush_image->width_attr = VME_D16 | VME_D32;
+ memset(&(tsi148_device->flush_image->bus_resource), 0,
sizeof(struct resource));
- flush_image->kern_base = NULL;
+ tsi148_device->flush_image->kern_base = NULL;
}
/* Add master windows to list */
VME_2eSST267 | VME_2eSST320 | VME_SUPER | VME_USER |
VME_PROG | VME_DATA;
master_image->width_attr = VME_D16 | VME_D32;
- memset(&(master_image->pci_resource), 0,
+ memset(&(master_image->bus_resource), 0,
sizeof(struct resource));
master_image->kern_base = NULL;
list_add_tail(&(master_image->list),
goto err_slave;
}
slave_image->parent = tsi148_bridge;
- init_MUTEX(&(slave_image->sem));
+ mutex_init(&(slave_image->mtx));
slave_image->locked = 0;
slave_image->number = i;
slave_image->address_attr = VME_A16 | VME_A24 | VME_A32 |
goto err_dma;
}
dma_ctrlr->parent = tsi148_bridge;
- init_MUTEX(&(dma_ctrlr->sem));
+ mutex_init(&(dma_ctrlr->mtx));
dma_ctrlr->locked = 0;
dma_ctrlr->number = i;
+ dma_ctrlr->route_attr = VME_DMA_VME_TO_MEM |
+ VME_DMA_MEM_TO_VME | VME_DMA_VME_TO_VME |
+ VME_DMA_MEM_TO_MEM | VME_DMA_PATTERN_TO_VME |
+ VME_DMA_PATTERN_TO_MEM;
INIT_LIST_HEAD(&(dma_ctrlr->pending));
INIT_LIST_HEAD(&(dma_ctrlr->running));
list_add_tail(&(dma_ctrlr->list),
&(tsi148_bridge->dma_resources));
}
+ /* Add location monitor to list */
+ INIT_LIST_HEAD(&(tsi148_bridge->lm_resources));
+ lm = kmalloc(sizeof(struct vme_lm_resource), GFP_KERNEL);
+ if (lm == NULL) {
+ dev_err(&pdev->dev, "Failed to allocate memory for "
+ "location monitor resource structure\n");
+ retval = -ENOMEM;
+ goto err_lm;
+ }
+ lm->parent = tsi148_bridge;
+ mutex_init(&(lm->mtx));
+ lm->locked = 0;
+ lm->number = 1;
+ lm->monitors = 4;
+ list_add_tail(&(lm->list), &(tsi148_bridge->lm_resources));
+
tsi148_bridge->slave_get = tsi148_slave_get;
tsi148_bridge->slave_set = tsi148_slave_set;
tsi148_bridge->master_get = tsi148_master_get;
tsi148_bridge->dma_list_add = tsi148_dma_list_add;
tsi148_bridge->dma_list_exec = tsi148_dma_list_exec;
tsi148_bridge->dma_list_empty = tsi148_dma_list_empty;
- tsi148_bridge->request_irq = tsi148_request_irq;
- tsi148_bridge->free_irq = tsi148_free_irq;
- tsi148_bridge->generate_irq = tsi148_generate_irq;
+ tsi148_bridge->irq_set = tsi148_irq_set;
+ tsi148_bridge->irq_generate = tsi148_irq_generate;
tsi148_bridge->lm_set = tsi148_lm_set;
tsi148_bridge->lm_get = tsi148_lm_get;
tsi148_bridge->lm_attach = tsi148_lm_attach;
tsi148_bridge->lm_detach = tsi148_lm_detach;
tsi148_bridge->slot_get = tsi148_slot_get;
- data = ioread32be(tsi148_bridge->base + TSI148_LCSR_VSTAT);
+ data = ioread32be(tsi148_device->base + TSI148_LCSR_VSTAT);
dev_info(&pdev->dev, "Board is%s the VME system controller\n",
(data & TSI148_LCSR_VSTAT_SCONS)? "" : " not");
- dev_info(&pdev->dev, "VME geographical address is %d\n",
- data & TSI148_LCSR_VSTAT_GA_M);
+ if (!geoid)
+ dev_info(&pdev->dev, "VME geographical address is %d\n",
+ data & TSI148_LCSR_VSTAT_GA_M);
+ else
+ dev_info(&pdev->dev, "VME geographical address is set to %d\n",
+ geoid);
+
dev_info(&pdev->dev, "VME Write and flush and error check is %s\n",
err_chk ? "enabled" : "disabled");
- if(tsi148_crcsr_init(pdev)) {
+ if (tsi148_crcsr_init(tsi148_bridge, pdev)) {
dev_err(&pdev->dev, "CR/CSR configuration failed.\n");
goto err_crcsr;
-
}
- /* Need to save tsi148_bridge pointer locally in link list for use in
- * tsi148_remove()
- */
retval = vme_register_bridge(tsi148_bridge);
if (retval != 0) {
dev_err(&pdev->dev, "Chip Registration failed.\n");
goto err_reg;
}
+ pci_set_drvdata(pdev, tsi148_bridge);
+
/* Clear VME bus "board fail", and "power-up reset" lines */
- data = ioread32be(tsi148_bridge->base + TSI148_LCSR_VSTAT);
+ data = ioread32be(tsi148_device->base + TSI148_LCSR_VSTAT);
data &= ~TSI148_LCSR_VSTAT_BRDFL;
data |= TSI148_LCSR_VSTAT_CPURST;
- iowrite32be(data, tsi148_bridge->base + TSI148_LCSR_VSTAT);
+ iowrite32be(data, tsi148_device->base + TSI148_LCSR_VSTAT);
return 0;
vme_unregister_bridge(tsi148_bridge);
err_reg:
- tsi148_crcsr_exit(pdev);
+ tsi148_crcsr_exit(tsi148_bridge, pdev);
err_crcsr:
+err_lm:
+ /* resources are stored in link list */
+ list_for_each(pos, &(tsi148_bridge->lm_resources)) {
+ lm = list_entry(pos, struct vme_lm_resource, list);
+ list_del(pos);
+ kfree(lm);
+ }
err_dma:
/* resources are stored in link list */
list_for_each(pos, &(tsi148_bridge->dma_resources)) {
kfree(master_image);
}
- tsi148_irq_exit(pdev);
+ tsi148_irq_exit(tsi148_device, pdev);
err_irq:
err_test:
- iounmap(tsi148_bridge->base);
+ iounmap(tsi148_device->base);
err_remap:
pci_release_regions(pdev);
err_resource:
pci_disable_device(pdev);
err_enable:
+ kfree(tsi148_device);
+err_driver:
kfree(tsi148_bridge);
err_struct:
return retval;
struct vme_slave_resource *slave_image;
struct vme_dma_resource *dma_ctrlr;
int i;
+ struct tsi148_driver *bridge;
+ struct vme_bridge *tsi148_bridge = pci_get_drvdata(pdev);
- dev_dbg(&pdev->dev, "Driver is being unloaded.\n");
+ bridge = tsi148_bridge->driver_priv;
- /* XXX We need to find the pdev->dev in the list of vme_bridge->dev's */
+
+ dev_dbg(&pdev->dev, "Driver is being unloaded.\n");
/*
* Shutdown all inbound and outbound windows.
*/
for (i = 0; i < 8; i++) {
- iowrite32be(0, tsi148_bridge->base + TSI148_LCSR_IT[i] +
+ iowrite32be(0, bridge->base + TSI148_LCSR_IT[i] +
TSI148_LCSR_OFFSET_ITAT);
- iowrite32be(0, tsi148_bridge->base + TSI148_LCSR_OT[i] +
+ iowrite32be(0, bridge->base + TSI148_LCSR_OT[i] +
TSI148_LCSR_OFFSET_OTAT);
}
/*
* Shutdown Location monitor.
*/
- iowrite32be(0, tsi148_bridge->base + TSI148_LCSR_LMAT);
+ iowrite32be(0, bridge->base + TSI148_LCSR_LMAT);
/*
* Shutdown CRG map.
*/
- iowrite32be(0, tsi148_bridge->base + TSI148_LCSR_CSRAT);
+ iowrite32be(0, bridge->base + TSI148_LCSR_CSRAT);
/*
* Clear error status.
*/
- iowrite32be(0xFFFFFFFF, tsi148_bridge->base + TSI148_LCSR_EDPAT);
- iowrite32be(0xFFFFFFFF, tsi148_bridge->base + TSI148_LCSR_VEAT);
- iowrite32be(0x07000700, tsi148_bridge->base + TSI148_LCSR_PSTAT);
+ iowrite32be(0xFFFFFFFF, bridge->base + TSI148_LCSR_EDPAT);
+ iowrite32be(0xFFFFFFFF, bridge->base + TSI148_LCSR_VEAT);
+ iowrite32be(0x07000700, bridge->base + TSI148_LCSR_PSTAT);
/*
* Remove VIRQ interrupt (if any)
*/
- if (ioread32be(tsi148_bridge->base + TSI148_LCSR_VICR) & 0x800) {
- iowrite32be(0x8000, tsi148_bridge->base + TSI148_LCSR_VICR);
- }
-
- /*
- * Disable and clear all interrupts.
- */
- iowrite32be(0x0, tsi148_bridge->base + TSI148_LCSR_INTEO);
- iowrite32be(0xFFFFFFFF, tsi148_bridge->base + TSI148_LCSR_INTC);
- iowrite32be(0xFFFFFFFF, tsi148_bridge->base + TSI148_LCSR_INTEN);
+ if (ioread32be(bridge->base + TSI148_LCSR_VICR) & 0x800)
+ iowrite32be(0x8000, bridge->base + TSI148_LCSR_VICR);
/*
* Map all Interrupts to PCI INTA
*/
- iowrite32be(0x0, tsi148_bridge->base + TSI148_LCSR_INTM1);
- iowrite32be(0x0, tsi148_bridge->base + TSI148_LCSR_INTM2);
+ iowrite32be(0x0, bridge->base + TSI148_LCSR_INTM1);
+ iowrite32be(0x0, bridge->base + TSI148_LCSR_INTM2);
- tsi148_irq_exit(pdev);
+ tsi148_irq_exit(bridge, pdev);
vme_unregister_bridge(tsi148_bridge);
- tsi148_crcsr_exit(pdev);
+ tsi148_crcsr_exit(tsi148_bridge, pdev);
/* resources are stored in link list */
list_for_each(pos, &(tsi148_bridge->dma_resources)) {
/* resources are stored in link list */
list_for_each(pos, &(tsi148_bridge->master_resources)) {
- master_image = list_entry(pos, struct vme_master_resource, list);
+ master_image = list_entry(pos, struct vme_master_resource,
+ list);
list_del(pos);
kfree(master_image);
}
- tsi148_irq_exit(pdev);
+ tsi148_irq_exit(bridge, pdev);
- iounmap(tsi148_bridge->base);
+ iounmap(bridge->base);
pci_release_regions(pdev);
pci_disable_device(pdev);
+ kfree(tsi148_bridge->driver_priv);
+
kfree(tsi148_bridge);
}
MODULE_PARM_DESC(err_chk, "Check for VME errors on reads and writes");
module_param(err_chk, bool, 0);
+MODULE_PARM_DESC(geoid, "Override geographical addressing");
+module_param(geoid, int, 0);
+
MODULE_DESCRIPTION("VME driver for the Tundra Tempe VME bridge");
MODULE_LICENSE("GPL");
module_init(tsi148_init);
module_exit(tsi148_exit);
-
-/*----------------------------------------------------------------------------
- * STAGING
- *--------------------------------------------------------------------------*/
-
-#if 0
-/*
- * Direct Mode DMA transfer
- *
- * XXX Not looking at direct mode for now, we can always use link list mode
- * with a single entry.
- */
-int tsi148_dma_run(struct vme_dma_resource *resource, struct vme_dma_attr src,
- struct vme_dma_attr dest, size_t count)
-{
- u32 dctlreg = 0;
- unsigned int tmp;
- int val;
- int channel, x;
- struct vmeDmaPacket *cur_dma;
- struct tsi148_dma_descriptor *dmaLL;
-
- /* direct mode */
- dctlreg = 0x800000;
-
- for (x = 0; x < 8; x++) { /* vme block size */
- if ((32 << x) >= vmeDma->maxVmeBlockSize) {
- break;
- }
- }
- if (x == 8)
- x = 7;
- dctlreg |= (x << 12);
-
- for (x = 0; x < 8; x++) { /* pci block size */
- if ((32 << x) >= vmeDma->maxPciBlockSize) {
- break;
- }
- }
- if (x == 8)
- x = 7;
- dctlreg |= (x << 4);
-
- if (vmeDma->vmeBackOffTimer) {
- for (x = 1; x < 8; x++) { /* vme timer */
- if ((1 << (x - 1)) >= vmeDma->vmeBackOffTimer) {
- break;
- }
- }
- if (x == 8)
- x = 7;
- dctlreg |= (x << 8);
- }
-
- if (vmeDma->pciBackOffTimer) {
- for (x = 1; x < 8; x++) { /* pci timer */
- if ((1 << (x - 1)) >= vmeDma->pciBackOffTimer) {
- break;
- }
- }
- if (x == 8)
- x = 7;
- dctlreg |= (x << 0);
- }
-
- /* Program registers for DMA transfer */
- iowrite32be(dmaLL->dsau, tsi148_bridge->base +
- TSI148_LCSR_DMA[channel] + TSI148_LCSR_OFFSET_DSAU);
- iowrite32be(dmaLL->dsal, tsi148_bridge->base +
- TSI148_LCSR_DMA[channel] + TSI148_LCSR_OFFSET_DSAL);
- iowrite32be(dmaLL->ddau, tsi148_bridge->base +
- TSI148_LCSR_DMA[channel] + TSI148_LCSR_OFFSET_DDAU);
- iowrite32be(dmaLL->ddal, tsi148_bridge->base +
- TSI148_LCSR_DMA[channel] + TSI148_LCSR_OFFSET_DDAL);
- iowrite32be(dmaLL->dsat, tsi148_bridge->base +
- TSI148_LCSR_DMA[channel] + TSI148_LCSR_OFFSET_DSAT);
- iowrite32be(dmaLL->ddat, tsi148_bridge->base +
- TSI148_LCSR_DMA[channel] + TSI148_LCSR_OFFSET_DDAT);
- iowrite32be(dmaLL->dcnt, tsi148_bridge->base +
- TSI148_LCSR_DMA[channel] + TSI148_LCSR_OFFSET_DCNT);
- iowrite32be(dmaLL->ddbs, tsi148_bridge->base +
- TSI148_LCSR_DMA[channel] + TSI148_LCSR_OFFSET_DDBS);
-
- /* Start the operation */
- iowrite32be(dctlreg | 0x2000000, tsi148_bridge->base +
- TSI148_LCSR_DMA[channel] + TSI148_LCSR_OFFSET_DCTL);
-
- tmp = ioread32be(tsi148_bridge->base + TSI148_LCSR_DMA[channel] +
- TSI148_LCSR_OFFSET_DSTA);
- wait_event_interruptible(dma_queue[channel], (tmp & 0x1000000) == 0);
-
- /*
- * Read status register, we should probably do this in some error
- * handler rather than here so that we can be sure we haven't kicked off
- * another DMA transfer.
- */
- val = ioread32be(tsi148_bridge->base + TSI148_LCSR_DMA[channel] +
- TSI148_LCSR_OFFSET_DSTA);
-
- vmeDma->vmeDmaStatus = 0;
- if (val & 0x10000000) {
- printk(KERN_ERR
- "DMA Error in DMA_tempe_irqhandler DSTA=%08X\n",
- val);
- vmeDma->vmeDmaStatus = val;
-
- }
- return (0);
-}
-#endif
-
-#if 0
-
-/* Global VME controller information */
-struct pci_dev *vme_pci_dev;
-
-/*
- * Set the VME bus arbiter with the requested attributes
- */
-int tempe_set_arbiter(vmeArbiterCfg_t * vmeArb)
-{
- int temp_ctl = 0;
- int gto = 0;
-
- temp_ctl = ioread32be(tsi148_bridge->base + TSI148_LCSR_VCTRL);
- temp_ctl &= 0xFFEFFF00;
-
- if (vmeArb->globalTimeoutTimer == 0xFFFFFFFF) {
- gto = 8;
- } else if (vmeArb->globalTimeoutTimer > 2048) {
- return (-EINVAL);
- } else if (vmeArb->globalTimeoutTimer == 0) {
- gto = 0;
- } else {
- gto = 1;
- while ((16 * (1 << (gto - 1))) < vmeArb->globalTimeoutTimer) {
- gto += 1;
- }
- }
- temp_ctl |= gto;
-
- if (vmeArb->arbiterMode != VME_PRIORITY_MODE) {
- temp_ctl |= 1 << 6;
- }
-
- if (vmeArb->arbiterTimeoutFlag) {
- temp_ctl |= 1 << 7;
- }
-
- if (vmeArb->noEarlyReleaseFlag) {
- temp_ctl |= 1 << 20;
- }
- iowrite32be(temp_ctl, tsi148_bridge->base + TSI148_LCSR_VCTRL);
-
- return (0);
-}
-
-/*
- * Return the attributes of the VME bus arbiter.
- */
-int tempe_get_arbiter(vmeArbiterCfg_t * vmeArb)
-{
- int temp_ctl = 0;
- int gto = 0;
-
-
- temp_ctl = ioread32be(tsi148_bridge->base + TSI148_LCSR_VCTRL);
-
- gto = temp_ctl & 0xF;
- if (gto != 0) {
- vmeArb->globalTimeoutTimer = (16 * (1 << (gto - 1)));
- }
-
- if (temp_ctl & (1 << 6)) {
- vmeArb->arbiterMode = VME_R_ROBIN_MODE;
- } else {
- vmeArb->arbiterMode = VME_PRIORITY_MODE;
- }
-
- if (temp_ctl & (1 << 7)) {
- vmeArb->arbiterTimeoutFlag = 1;
- }
-
- if (temp_ctl & (1 << 20)) {
- vmeArb->noEarlyReleaseFlag = 1;
- }
-
- return (0);
-}
-
-/*
- * Set the VME bus requestor with the requested attributes
- */
-int tempe_set_requestor(vmeRequesterCfg_t * vmeReq)
-{
- int temp_ctl = 0;
-
- temp_ctl = ioread32be(tsi148_bridge->base + TSI148_LCSR_VMCTRL);
- temp_ctl &= 0xFFFF0000;
-
- if (vmeReq->releaseMode == 1) {
- temp_ctl |= (1 << 3);
- }
-
- if (vmeReq->fairMode == 1) {
- temp_ctl |= (1 << 2);
- }
-
- temp_ctl |= (vmeReq->timeonTimeoutTimer & 7) << 8;
- temp_ctl |= (vmeReq->timeoffTimeoutTimer & 7) << 12;
- temp_ctl |= vmeReq->requestLevel;
-
- iowrite32be(temp_ctl, tsi148_bridge->base + TSI148_LCSR_VMCTRL);
- return (0);
-}
-
-/*
- * Return the attributes of the VME bus requestor
- */
-int tempe_get_requestor(vmeRequesterCfg_t * vmeReq)
-{
- int temp_ctl = 0;
-
- temp_ctl = ioread32be(tsi148_bridge->base + TSI148_LCSR_VMCTRL);
-
- if (temp_ctl & 0x18) {
- vmeReq->releaseMode = 1;
- }
-
- if (temp_ctl & (1 << 2)) {
- vmeReq->fairMode = 1;
- }
-
- vmeReq->requestLevel = temp_ctl & 3;
- vmeReq->timeonTimeoutTimer = (temp_ctl >> 8) & 7;
- vmeReq->timeoffTimeoutTimer = (temp_ctl >> 12) & 7;
-
- return (0);
-}
-
-
-#endif
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff