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-rw-r--r--arch/sparc/kernel/ebus.c1
-rw-r--r--arch/sparc/kernel/entry.S7
-rw-r--r--arch/sparc/kernel/irq.c84
-rw-r--r--arch/sparc/kernel/prom.c15
-rw-r--r--arch/sparc/kernel/sparc_ksyms.c1
-rw-r--r--arch/sparc/mm/io-unit.c18
-rw-r--r--arch/sparc/mm/iommu.c12
-rw-r--r--arch/sparc/mm/sun4c.c2
8 files changed, 93 insertions, 47 deletions
diff --git a/arch/sparc/kernel/ebus.c b/arch/sparc/kernel/ebus.c
index ac352eb6dff..e2d02fd13f3 100644
--- a/arch/sparc/kernel/ebus.c
+++ b/arch/sparc/kernel/ebus.c
@@ -238,6 +238,7 @@ void __init fill_ebus_device(struct device_node *dp, struct linux_ebus_device *d
sd = &dev->ofdev.dev.archdata;
sd->prom_node = dp;
sd->op = &dev->ofdev;
+ sd->iommu = dev->bus->ofdev.dev.parent->archdata.iommu;
dev->ofdev.node = dp;
dev->ofdev.dev.parent = &dev->bus->ofdev.dev;
diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index eac38388f5f..88d2cefd01b 100644
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -1,7 +1,6 @@
-/* $Id: entry.S,v 1.170 2001/11/13 00:57:05 davem Exp $
- * arch/sparc/kernel/entry.S: Sparc trap low-level entry points.
+/* arch/sparc/kernel/entry.S: Sparc trap low-level entry points.
*
- * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
+ * Copyright (C) 1995, 2007 David S. Miller (davem@davemloft.net)
* Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be)
* Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx)
* Copyright (C) 1996-1999 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
@@ -129,7 +128,7 @@ trap_low:
RESTORE_ALL
#endif
-#ifdef CONFIG_BLK_DEV_FD
+#if defined(CONFIG_BLK_DEV_FD) || defined(CONFIG_BLK_DEV_FD_MODULE)
.text
.align 4
.globl floppy_hardint
diff --git a/arch/sparc/kernel/irq.c b/arch/sparc/kernel/irq.c
index 75b2240ad0f..b76dc03fc31 100644
--- a/arch/sparc/kernel/irq.c
+++ b/arch/sparc/kernel/irq.c
@@ -351,34 +351,14 @@ void handler_irq(int irq, struct pt_regs * regs)
set_irq_regs(old_regs);
}
-#ifdef CONFIG_BLK_DEV_FD
-extern void floppy_interrupt(int irq, void *dev_id);
-
-void sparc_floppy_irq(int irq, void *dev_id, struct pt_regs *regs)
-{
- struct pt_regs *old_regs;
- int cpu = smp_processor_id();
-
- old_regs = set_irq_regs(regs);
- disable_pil_irq(irq);
- irq_enter();
- kstat_cpu(cpu).irqs[irq]++;
- floppy_interrupt(irq, dev_id);
- irq_exit();
- enable_pil_irq(irq);
- set_irq_regs(old_regs);
- // XXX Eek, it's totally changed with preempt_count() and such
- // if (softirq_pending(cpu))
- // do_softirq();
-}
-#endif
+#if defined(CONFIG_BLK_DEV_FD) || defined(CONFIG_BLK_DEV_FD_MODULE)
/* Fast IRQs on the Sparc can only have one routine attached to them,
* thus no sharing possible.
*/
-int request_fast_irq(unsigned int irq,
- irq_handler_t handler,
- unsigned long irqflags, const char *devname)
+static int request_fast_irq(unsigned int irq,
+ void (*handler)(void),
+ unsigned long irqflags, const char *devname)
{
struct irqaction *action;
unsigned long flags;
@@ -457,7 +437,6 @@ int request_fast_irq(unsigned int irq,
*/
flush_cache_all();
- action->handler = handler;
action->flags = irqflags;
cpus_clear(action->mask);
action->name = devname;
@@ -475,6 +454,61 @@ out:
return ret;
}
+/* These variables are used to access state from the assembler
+ * interrupt handler, floppy_hardint, so we cannot put these in
+ * the floppy driver image because that would not work in the
+ * modular case.
+ */
+volatile unsigned char *fdc_status;
+EXPORT_SYMBOL(fdc_status);
+
+char *pdma_vaddr;
+EXPORT_SYMBOL(pdma_vaddr);
+
+unsigned long pdma_size;
+EXPORT_SYMBOL(pdma_size);
+
+volatile int doing_pdma;
+EXPORT_SYMBOL(doing_pdma);
+
+char *pdma_base;
+EXPORT_SYMBOL(pdma_base);
+
+unsigned long pdma_areasize;
+EXPORT_SYMBOL(pdma_areasize);
+
+extern void floppy_hardint(void);
+
+static irqreturn_t (*floppy_irq_handler)(int irq, void *dev_id);
+
+void sparc_floppy_irq(int irq, void *dev_id, struct pt_regs *regs)
+{
+ struct pt_regs *old_regs;
+ int cpu = smp_processor_id();
+
+ old_regs = set_irq_regs(regs);
+ disable_pil_irq(irq);
+ irq_enter();
+ kstat_cpu(cpu).irqs[irq]++;
+ floppy_irq_handler(irq, dev_id);
+ irq_exit();
+ enable_pil_irq(irq);
+ set_irq_regs(old_regs);
+ // XXX Eek, it's totally changed with preempt_count() and such
+ // if (softirq_pending(cpu))
+ // do_softirq();
+}
+
+int sparc_floppy_request_irq(int irq, unsigned long flags,
+ irqreturn_t (*irq_handler)(int irq, void *))
+{
+ floppy_irq_handler = irq_handler;
+ return request_fast_irq(irq, floppy_hardint, flags, "floppy");
+}
+EXPORT_SYMBOL(sparc_floppy_request_irq);
+
+#endif
+
int request_irq(unsigned int irq,
irq_handler_t handler,
unsigned long irqflags, const char * devname, void *dev_id)
diff --git a/arch/sparc/kernel/prom.c b/arch/sparc/kernel/prom.c
index 39fbd3c8ab0..cd4fb79aa3a 100644
--- a/arch/sparc/kernel/prom.c
+++ b/arch/sparc/kernel/prom.c
@@ -102,6 +102,21 @@ int of_set_property(struct device_node *dp, const char *name, void *val, int len
}
EXPORT_SYMBOL(of_set_property);
+int of_find_in_proplist(const char *list, const char *match, int len)
+{
+ while (len > 0) {
+ int l;
+
+ if (!strcmp(list, match))
+ return 1;
+ l = strlen(list) + 1;
+ list += l;
+ len -= l;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(of_find_in_proplist);
+
static unsigned int prom_early_allocated;
static void * __init prom_early_alloc(unsigned long size)
diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c
index 7b4abde4302..ef647acc479 100644
--- a/arch/sparc/kernel/sparc_ksyms.c
+++ b/arch/sparc/kernel/sparc_ksyms.c
@@ -143,7 +143,6 @@ EXPORT_SYMBOL(mstk48t02_regs);
EXPORT_SYMBOL(set_auxio);
EXPORT_SYMBOL(get_auxio);
#endif
-EXPORT_SYMBOL(request_fast_irq);
EXPORT_SYMBOL(io_remap_pfn_range);
/* P3: iounit_xxx may be needed, sun4d users */
/* EXPORT_SYMBOL(iounit_map_dma_init); */
diff --git a/arch/sparc/mm/io-unit.c b/arch/sparc/mm/io-unit.c
index 4ccda77d08d..7c89893b1fe 100644
--- a/arch/sparc/mm/io-unit.c
+++ b/arch/sparc/mm/io-unit.c
@@ -66,7 +66,7 @@ iounit_init(int sbi_node, int io_node, struct sbus_bus *sbus)
}
if(!xpt) panic("Cannot map External Page Table.");
- sbus->iommu = (struct iommu_struct *)iounit;
+ sbus->ofdev.dev.archdata.iommu = iounit;
iounit->page_table = xpt;
spin_lock_init(&iounit->lock);
@@ -127,7 +127,7 @@ nexti: scan = find_next_zero_bit(iounit->bmap, limit, scan);
static __u32 iounit_get_scsi_one(char *vaddr, unsigned long len, struct sbus_bus *sbus)
{
unsigned long ret, flags;
- struct iounit_struct *iounit = (struct iounit_struct *)sbus->iommu;
+ struct iounit_struct *iounit = sbus->ofdev.dev.archdata.iommu;
spin_lock_irqsave(&iounit->lock, flags);
ret = iounit_get_area(iounit, (unsigned long)vaddr, len);
@@ -138,7 +138,7 @@ static __u32 iounit_get_scsi_one(char *vaddr, unsigned long len, struct sbus_bus
static void iounit_get_scsi_sgl(struct scatterlist *sg, int sz, struct sbus_bus *sbus)
{
unsigned long flags;
- struct iounit_struct *iounit = (struct iounit_struct *)sbus->iommu;
+ struct iounit_struct *iounit = sbus->ofdev.dev.archdata.iommu;
/* FIXME: Cache some resolved pages - often several sg entries are to the same page */
spin_lock_irqsave(&iounit->lock, flags);
@@ -153,7 +153,7 @@ static void iounit_get_scsi_sgl(struct scatterlist *sg, int sz, struct sbus_bus
static void iounit_release_scsi_one(__u32 vaddr, unsigned long len, struct sbus_bus *sbus)
{
unsigned long flags;
- struct iounit_struct *iounit = (struct iounit_struct *)sbus->iommu;
+ struct iounit_struct *iounit = sbus->ofdev.dev.archdata.iommu;
spin_lock_irqsave(&iounit->lock, flags);
len = ((vaddr & ~PAGE_MASK) + len + (PAGE_SIZE-1)) >> PAGE_SHIFT;
@@ -168,7 +168,7 @@ static void iounit_release_scsi_sgl(struct scatterlist *sg, int sz, struct sbus_
{
unsigned long flags;
unsigned long vaddr, len;
- struct iounit_struct *iounit = (struct iounit_struct *)sbus->iommu;
+ struct iounit_struct *iounit = sbus->ofdev.dev.archdata.iommu;
spin_lock_irqsave(&iounit->lock, flags);
while (sz != 0) {
@@ -211,7 +211,7 @@ static int iounit_map_dma_area(dma_addr_t *pba, unsigned long va, __u32 addr, in
i = ((addr - IOUNIT_DMA_BASE) >> PAGE_SHIFT);
for_each_sbus(sbus) {
- struct iounit_struct *iounit = (struct iounit_struct *)sbus->iommu;
+ struct iounit_struct *iounit = sbus->ofdev.dev.archdata.iommu;
iopte = (iopte_t *)(iounit->page_table + i);
*iopte = MKIOPTE(__pa(page));
@@ -235,7 +235,7 @@ static void iounit_unmap_dma_area(unsigned long addr, int len)
static struct page *iounit_translate_dvma(unsigned long addr)
{
struct sbus_bus *sbus = sbus_root; /* They are all the same */
- struct iounit_struct *iounit = (struct iounit_struct *)sbus->iommu;
+ struct iounit_struct *iounit = sbus->ofdev.dev.archdata.iommu;
int i;
iopte_t *iopte;
@@ -279,7 +279,7 @@ __u32 iounit_map_dma_init(struct sbus_bus *sbus, int size)
unsigned long rotor, scan, limit;
unsigned long flags;
__u32 ret;
- struct iounit_struct *iounit = (struct iounit_struct *)sbus->iommu;
+ struct iounit_struct *iounit = sbus->ofdev.dev.archdata.iommu;
npages = (size + (PAGE_SIZE-1)) >> PAGE_SHIFT;
i = 0x0213;
@@ -315,7 +315,7 @@ nexti: scan = find_next_zero_bit(iounit->bmap, limit, scan);
__u32 iounit_map_dma_page(__u32 vaddr, void *addr, struct sbus_bus *sbus)
{
int scan = (vaddr - IOUNIT_DMA_BASE) >> PAGE_SHIFT;
- struct iounit_struct *iounit = (struct iounit_struct *)sbus->iommu;
+ struct iounit_struct *iounit = sbus->ofdev.dev.archdata.iommu;
iounit->page_table[scan] = MKIOPTE(__pa(((unsigned long)addr) & PAGE_MASK));
return vaddr + (((unsigned long)addr) & ~PAGE_MASK);
diff --git a/arch/sparc/mm/iommu.c b/arch/sparc/mm/iommu.c
index be042efd1ba..52e907af9d2 100644
--- a/arch/sparc/mm/iommu.c
+++ b/arch/sparc/mm/iommu.c
@@ -132,7 +132,7 @@ iommu_init(int iommund, struct sbus_bus *sbus)
impl, vers, iommu->page_table,
(int)(IOMMU_NPTES*sizeof(iopte_t)), (int)IOMMU_NPTES);
- sbus->iommu = iommu;
+ sbus->ofdev.dev.archdata.iommu = iommu;
}
/* This begs to be btfixup-ed by srmmu. */
@@ -166,7 +166,7 @@ static void iommu_flush_iotlb(iopte_t *iopte, unsigned int niopte)
static u32 iommu_get_one(struct page *page, int npages, struct sbus_bus *sbus)
{
- struct iommu_struct *iommu = sbus->iommu;
+ struct iommu_struct *iommu = sbus->ofdev.dev.archdata.iommu;
int ioptex;
iopte_t *iopte, *iopte0;
unsigned int busa, busa0;
@@ -291,7 +291,7 @@ static void iommu_get_scsi_sgl_pflush(struct scatterlist *sg, int sz, struct sbu
static void iommu_release_one(u32 busa, int npages, struct sbus_bus *sbus)
{
- struct iommu_struct *iommu = sbus->iommu;
+ struct iommu_struct *iommu = sbus->ofdev.dev.archdata.iommu;
int ioptex;
int i;
@@ -334,7 +334,7 @@ static int iommu_map_dma_area(dma_addr_t *pba, unsigned long va,
unsigned long addr, int len)
{
unsigned long page, end;
- struct iommu_struct *iommu = sbus_root->iommu;
+ struct iommu_struct *iommu = sbus_root->ofdev.dev.archdata.iommu;
iopte_t *iopte = iommu->page_table;
iopte_t *first;
int ioptex;
@@ -399,7 +399,7 @@ static int iommu_map_dma_area(dma_addr_t *pba, unsigned long va,
static void iommu_unmap_dma_area(unsigned long busa, int len)
{
- struct iommu_struct *iommu = sbus_root->iommu;
+ struct iommu_struct *iommu = sbus_root->ofdev.dev.archdata.iommu;
iopte_t *iopte = iommu->page_table;
unsigned long end;
int ioptex = (busa - iommu->start) >> PAGE_SHIFT;
@@ -420,7 +420,7 @@ static void iommu_unmap_dma_area(unsigned long busa, int len)
static struct page *iommu_translate_dvma(unsigned long busa)
{
- struct iommu_struct *iommu = sbus_root->iommu;
+ struct iommu_struct *iommu = sbus_root->ofdev.dev.archdata.iommu;
iopte_t *iopte = iommu->page_table;
iopte += ((busa - iommu->start) >> PAGE_SHIFT);
diff --git a/arch/sparc/mm/sun4c.c b/arch/sparc/mm/sun4c.c
index 79d60d86f6f..005a3e72d4f 100644
--- a/arch/sparc/mm/sun4c.c
+++ b/arch/sparc/mm/sun4c.c
@@ -268,7 +268,6 @@ static inline void sun4c_init_clean_mmu(unsigned long kernel_end)
unsigned char savectx, ctx;
savectx = sun4c_get_context();
- kernel_end = SUN4C_REAL_PGDIR_ALIGN(kernel_end);
for (ctx = 0; ctx < num_contexts; ctx++) {
sun4c_set_context(ctx);
for (vaddr = 0; vaddr < 0x20000000; vaddr += SUN4C_REAL_PGDIR_SIZE)
@@ -2064,7 +2063,6 @@ void __init sun4c_paging_init(void)
unsigned long end_pfn, pages_avail;
kernel_end = (unsigned long) &end;
- kernel_end += (SUN4C_REAL_PGDIR_SIZE * 4);
kernel_end = SUN4C_REAL_PGDIR_ALIGN(kernel_end);
pages_avail = 0;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 13:36:38 +0000