Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/…

…davem/sparc-2.6 * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC64]: Fix args to sun4v_ldc_revoke(). [SPARC64]: Really fix parport. [SPARC64]: Fix IO/MEM space sizing for PCI. [SPARC64]: Wire up cookie based sun4v interrupt registry.
git-mirror · Jun 14, 2007 · 0127d6d · 0127d6d
2 parents 1e0e76c + fc395f8
commit 0127d6d
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Showing 7 changed files with 157 additions and 47 deletions.
diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S
@@ -2357,8 +2357,9 @@ sun4v_ldc_unmap:
 	 nop
 	.size	sun4v_ldc_unmap, .-sun4v_ldc_unmap
 
-	/* %o0:	cookie
-	 * %o1:	mte_cookie
+	/* %o0: channel
+	 * %o1:	cookie
+	 * %o2:	mte_cookie
 	 *
 	 * returns %o0:	status
 	 */

diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c
@@ -1,7 +1,6 @@
-/* $Id: irq.c,v 1.114 2002/01/11 08:45:38 davem Exp $
- * irq.c: UltraSparc IRQ handling/init/registry.
+/* irq.c: UltraSparc IRQ handling/init/registry.
  *
- * Copyright (C) 1997  David S. Miller  (davem@caip.rutgers.edu)
+ * Copyright (C) 1997, 2007  David S. Miller  (davem@davemloft.net)
  * Copyright (C) 1998  Eddie C. Dost    (ecd@skynet.be)
  * Copyright (C) 1998  Jakub Jelinek    (jj@ultra.linux.cz)
  */
@@ -43,6 +42,7 @@
 #include <asm/cpudata.h>
 #include <asm/auxio.h>
 #include <asm/head.h>
+#include <asm/hypervisor.h>
 
 /* UPA nodes send interrupt packet to UltraSparc with first data reg
  * value low 5 (7 on Starfire) bits holding the IRQ identifier being
@@ -380,6 +380,76 @@ static void sun4v_irq_end(unsigned int virt_irq)
 	}
 }
 
+static void sun4v_virq_enable(unsigned int virt_irq)
+{
+	struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq);
+	unsigned int ino = bucket - &ivector_table[0];
+
+	if (likely(bucket)) {
+		unsigned long cpuid, dev_handle, dev_ino;
+		int err;
+
+		cpuid = irq_choose_cpu(virt_irq);
+
+		dev_handle = ino & IMAP_IGN;
+		dev_ino = ino & IMAP_INO;
+
+		err = sun4v_vintr_set_target(dev_handle, dev_ino, cpuid);
+		if (err != HV_EOK)
+			printk("sun4v_vintr_set_target(%lx,%lx,%lu): "
+			       "err(%d)\n",
+			       dev_handle, dev_ino, cpuid, err);
+		err = sun4v_vintr_set_state(dev_handle, dev_ino,
+					    HV_INTR_ENABLED);
+		if (err != HV_EOK)
+			printk("sun4v_vintr_set_state(%lx,%lx,"
+			       "HV_INTR_ENABLED): err(%d)\n",
+			       dev_handle, dev_ino, err);
+	}
+}
+
+static void sun4v_virq_disable(unsigned int virt_irq)
+{
+	struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq);
+	unsigned int ino = bucket - &ivector_table[0];
+
+	if (likely(bucket)) {
+		unsigned long dev_handle, dev_ino;
+		int err;
+
+		dev_handle = ino & IMAP_IGN;
+		dev_ino = ino & IMAP_INO;
+
+		err = sun4v_vintr_set_state(dev_handle, dev_ino,
+					    HV_INTR_DISABLED);
+		if (err != HV_EOK)
+			printk("sun4v_vintr_set_state(%lx,%lx,"
+			       "HV_INTR_DISABLED): err(%d)\n",
+			       dev_handle, dev_ino, err);
+	}
+}
+
+static void sun4v_virq_end(unsigned int virt_irq)
+{
+	struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq);
+	unsigned int ino = bucket - &ivector_table[0];
+
+	if (likely(bucket)) {
+		unsigned long dev_handle, dev_ino;
+		int err;
+
+		dev_handle = ino & IMAP_IGN;
+		dev_ino = ino & IMAP_INO;
+
+		err = sun4v_vintr_set_state(dev_handle, dev_ino,
+					    HV_INTR_STATE_IDLE);
+		if (err != HV_EOK)
+			printk("sun4v_vintr_set_state(%lx,%lx,"
+				"HV_INTR_STATE_IDLE): err(%d)\n",
+			       dev_handle, dev_ino, err);
+	}
+}
+
 static void run_pre_handler(unsigned int virt_irq)
 {
 	struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq);
@@ -434,6 +504,21 @@ static struct irq_chip sun4v_msi = {
 };
 #endif
 
+static struct irq_chip sun4v_virq = {
+	.typename	= "vsun4v",
+	.enable		= sun4v_virq_enable,
+	.disable	= sun4v_virq_disable,
+	.end		= sun4v_virq_end,
+};
+
+static struct irq_chip sun4v_virq_ack = {
+	.typename	= "vsun4v+ack",
+	.enable		= sun4v_virq_enable,
+	.disable	= sun4v_virq_disable,
+	.ack		= run_pre_handler,
+	.end		= sun4v_virq_end,
+};
+
 void irq_install_pre_handler(int virt_irq,
 			     void (*func)(unsigned int, void *, void *),
 			     void *arg1, void *arg2)
@@ -447,15 +532,18 @@ void irq_install_pre_handler(int virt_irq,
 
 	chip = get_irq_chip(virt_irq);
 	if (chip == &sun4u_irq_ack ||
-	    chip == &sun4v_irq_ack
+	    chip == &sun4v_irq_ack ||
+	    chip == &sun4v_virq_ack
 #ifdef CONFIG_PCI_MSI
 	    || chip == &sun4v_msi
 #endif
 	    )
 		return;
 
 	chip = (chip == &sun4u_irq ?
-		&sun4u_irq_ack : &sun4v_irq_ack);
+		&sun4u_irq_ack :
+		(chip == &sun4v_irq ?
+		 &sun4v_irq_ack : &sun4v_virq_ack));
 	set_irq_chip(virt_irq, chip);
 }
 
@@ -492,19 +580,18 @@ unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap)
 	return bucket->virt_irq;
 }
 
-unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino)
+static unsigned int sun4v_build_common(unsigned long sysino,
+				       struct irq_chip *chip)
 {
 	struct ino_bucket *bucket;
 	struct irq_handler_data *data;
-	unsigned long sysino;
 
 	BUG_ON(tlb_type != hypervisor);
 
-	sysino = sun4v_devino_to_sysino(devhandle, devino);
 	bucket = &ivector_table[sysino];
 	if (!bucket->virt_irq) {
 		bucket->virt_irq = virt_irq_alloc(__irq(bucket));
-		set_irq_chip(bucket->virt_irq, &sun4v_irq);
+		set_irq_chip(bucket->virt_irq, chip);
 	}
 
 	data = get_irq_chip_data(bucket->virt_irq);
@@ -529,6 +616,32 @@ unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino)
 	return bucket->virt_irq;
 }
 
+unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino)
+{
+	unsigned long sysino = sun4v_devino_to_sysino(devhandle, devino);
+
+	return sun4v_build_common(sysino, &sun4v_irq);
+}
+
+unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino)
+{
+	unsigned long sysino, hv_err;
+
+	BUG_ON(devhandle & ~IMAP_IGN);
+	BUG_ON(devino & ~IMAP_INO);
+
+	sysino = devhandle | devino;
+
+	hv_err = sun4v_vintr_set_cookie(devhandle, devino, sysino);
+	if (hv_err) {
+		prom_printf("IRQ: Fatal, cannot set cookie for [%x:%x] "
+			    "err=%lu\n", devhandle, devino, hv_err);
+		prom_halt();
+	}
+
+	return sun4v_build_common(sysino, &sun4v_virq);
+}
+
 #ifdef CONFIG_PCI_MSI
 unsigned int sun4v_build_msi(u32 devhandle, unsigned int *virt_irq_p,
 			     unsigned int msi_start, unsigned int msi_end)

diff --git a/arch/sparc64/kernel/pci_common.c b/arch/sparc64/kernel/pci_common.c
@@ -291,18 +291,24 @@ void pci_determine_mem_io_space(struct pci_pbm_info *pbm)
 
 	for (i = 0; i < num_pbm_ranges; i++) {
 		const struct linux_prom_pci_ranges *pr = &pbm_ranges[i];
-		unsigned long a;
+		unsigned long a, size;
 		u32 parent_phys_hi, parent_phys_lo;
+		u32 size_hi, size_lo;
 		int type;
 
 		parent_phys_hi = pr->parent_phys_hi;
 		parent_phys_lo = pr->parent_phys_lo;
 		if (tlb_type == hypervisor)
 			parent_phys_hi &= 0x0fffffff;
 
+		size_hi = pr->size_hi;
+		size_lo = pr->size_lo;
+
 		type = (pr->child_phys_hi >> 24) & 0x3;
 		a = (((unsigned long)parent_phys_hi << 32UL) |
 		     ((unsigned long)parent_phys_lo  <<  0UL));
+		size = (((unsigned long)size_hi << 32UL) |
+			((unsigned long)size_lo  <<  0UL));
 
 		switch (type) {
 		case 0:
@@ -313,15 +319,15 @@ void pci_determine_mem_io_space(struct pci_pbm_info *pbm)
 		case 1:
 			/* 16-bit IO space, 16MB */
 			pbm->io_space.start = a;
-			pbm->io_space.end = a + ((16UL*1024UL*1024UL) - 1UL);
+			pbm->io_space.end = a + size - 1UL;
 			pbm->io_space.flags = IORESOURCE_IO;
 			saw_io = 1;
 			break;
 
 		case 2:
 			/* 32-bit MEM space, 2GB */
 			pbm->mem_space.start = a;
-			pbm->mem_space.end = a + (0x80000000UL - 1UL);
+			pbm->mem_space.end = a + size - 1UL;
 			pbm->mem_space.flags = IORESOURCE_MEM;
 			saw_mem = 1;
 			break;

diff --git a/include/asm-sparc64/dma-mapping.h b/include/asm-sparc64/dma-mapping.h
@@ -15,17 +15,15 @@
 static inline int
 dma_supported(struct device *dev, u64 mask)
 {
-	BUG_ON(dev->bus != &pci_bus_type &&
-	       dev->bus != &ebus_bus_type);
+	BUG_ON(dev->bus != &pci_bus_type);
 
 	return pci_dma_supported(to_pci_dev(dev), mask);
 }
 
 static inline int
 dma_set_mask(struct device *dev, u64 dma_mask)
 {
-	BUG_ON(dev->bus != &pci_bus_type &&
-	       dev->bus != &ebus_bus_type);
+	BUG_ON(dev->bus != &pci_bus_type);
 
 	return pci_set_dma_mask(to_pci_dev(dev), dma_mask);
 }
@@ -34,8 +32,7 @@ static inline void *
 dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
 		   gfp_t flag)
 {
-	BUG_ON(dev->bus != &pci_bus_type &&
-	       dev->bus != &ebus_bus_type);
+	BUG_ON(dev->bus != &pci_bus_type);
 
 	return pci_iommu_ops->alloc_consistent(to_pci_dev(dev), size, dma_handle, flag);
 }
@@ -44,8 +41,7 @@ static inline void
 dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
 		    dma_addr_t dma_handle)
 {
-	BUG_ON(dev->bus != &pci_bus_type &&
-	       dev->bus != &ebus_bus_type);
+	BUG_ON(dev->bus != &pci_bus_type);
 
 	pci_free_consistent(to_pci_dev(dev), size, cpu_addr, dma_handle);
 }
@@ -54,8 +50,7 @@ static inline dma_addr_t
 dma_map_single(struct device *dev, void *cpu_addr, size_t size,
 	       enum dma_data_direction direction)
 {
-	BUG_ON(dev->bus != &pci_bus_type &&
-	       dev->bus != &ebus_bus_type);
+	BUG_ON(dev->bus != &pci_bus_type);
 
 	return pci_map_single(to_pci_dev(dev), cpu_addr, size, (int)direction);
 }
@@ -64,8 +59,7 @@ static inline void
 dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
 		 enum dma_data_direction direction)
 {
-	BUG_ON(dev->bus != &pci_bus_type &&
-	       dev->bus != &ebus_bus_type);
+	BUG_ON(dev->bus != &pci_bus_type);
 
 	pci_unmap_single(to_pci_dev(dev), dma_addr, size, (int)direction);
 }
@@ -75,8 +69,7 @@ dma_map_page(struct device *dev, struct page *page,
 	     unsigned long offset, size_t size,
 	     enum dma_data_direction direction)
 {
-	BUG_ON(dev->bus != &pci_bus_type &&
-	       dev->bus != &ebus_bus_type);
+	BUG_ON(dev->bus != &pci_bus_type);
 
 	return pci_map_page(to_pci_dev(dev), page, offset, size, (int)direction);
 }
@@ -85,8 +78,7 @@ static inline void
 dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
 	       enum dma_data_direction direction)
 {
-	BUG_ON(dev->bus != &pci_bus_type &&
-	       dev->bus != &ebus_bus_type);
+	BUG_ON(dev->bus != &pci_bus_type);
 
 	pci_unmap_page(to_pci_dev(dev), dma_address, size, (int)direction);
 }
@@ -95,8 +87,7 @@ static inline int
 dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
 	   enum dma_data_direction direction)
 {
-	BUG_ON(dev->bus != &pci_bus_type &&
-	       dev->bus != &ebus_bus_type);
+	BUG_ON(dev->bus != &pci_bus_type);
 
 	return pci_map_sg(to_pci_dev(dev), sg, nents, (int)direction);
 }
@@ -105,8 +96,7 @@ static inline void
 dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
 	     enum dma_data_direction direction)
 {
-	BUG_ON(dev->bus != &pci_bus_type &&
-	       dev->bus != &ebus_bus_type);
+	BUG_ON(dev->bus != &pci_bus_type);
 
 	pci_unmap_sg(to_pci_dev(dev), sg, nhwentries, (int)direction);
 }
@@ -115,8 +105,7 @@ static inline void
 dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
 			enum dma_data_direction direction)
 {
-	BUG_ON(dev->bus != &pci_bus_type &&
-	       dev->bus != &ebus_bus_type);
+	BUG_ON(dev->bus != &pci_bus_type);
 
 	pci_dma_sync_single_for_cpu(to_pci_dev(dev), dma_handle,
 				    size, (int)direction);
@@ -126,8 +115,7 @@ static inline void
 dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size,
 			   enum dma_data_direction direction)
 {
-	BUG_ON(dev->bus != &pci_bus_type &&
-	       dev->bus != &ebus_bus_type);
+	BUG_ON(dev->bus != &pci_bus_type);
 
 	pci_dma_sync_single_for_device(to_pci_dev(dev), dma_handle,
 				       size, (int)direction);
@@ -137,8 +125,7 @@ static inline void
 dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
 		    enum dma_data_direction direction)
 {
-	BUG_ON(dev->bus != &pci_bus_type &&
-	       dev->bus != &ebus_bus_type);
+	BUG_ON(dev->bus != &pci_bus_type);
 
 	pci_dma_sync_sg_for_cpu(to_pci_dev(dev), sg, nelems, (int)direction);
 }
@@ -147,8 +134,7 @@ static inline void
 dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems,
 		       enum dma_data_direction direction)
 {
-	BUG_ON(dev->bus != &pci_bus_type &&
-	       dev->bus != &ebus_bus_type);
+	BUG_ON(dev->bus != &pci_bus_type);
 
 	pci_dma_sync_sg_for_device(to_pci_dev(dev), sg, nelems, (int)direction);
 }