Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: Optimize fault kprobe handling just like powerpc.
  [SPARC]: Wire up utimensat syscall.
  [SPARC64]: Fix request_irq() ignored result warnings in PCI controller code.
  [SPARC64]: Kill asm-sparc64/pbm.h
  [ATYFB]: Fix sparc includes.
  [QLA2XXX]: Fix build on sparc.
  [SPARC64]: Removal of trivial pci_controller_info uses.
  [SPARC64]: Move index info pci_pbm_info.
  [SPARC64]: Move {setup,teardown}_msi_irq into pci_pbm_info.
  [SPARC64]: Move pci_ops into pci_pbm_info.
  [SPARC64] SBUS: Error interrupt registry cleanups.
  [SPARC64] PCI: Use root list of pbm's instead of pci_controller_info's
  [SPARC64] PCI: Kill PROM_PCIRNG_MAX and PROM_PCIIMAP_MAX.
  [SPARC64] PCI: Use common routine to fetch PBM properties.

1 files changed, 128 insertions, 166 deletions

diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c
index 1ccf4c9a9a43..0c76a8891a96 100644
--- a/arch/sparc64/kernel/pci_sun4v.c
+++ b/arch/sparc64/kernel/pci_sun4v.c
@@ -13,7 +13,6 @@
 #include <linux/irq.h>
 #include <linux/msi.h>
 
-#include <asm/pbm.h>
 #include <asm/iommu.h>
 #include <asm/irq.h>
 #include <asm/upa.h>
@@ -677,29 +676,15 @@ static struct pci_ops pci_sun4v_ops = {
 };
 
 
-static void pbm_scan_bus(struct pci_controller_info *p,
-                         struct pci_pbm_info *pbm)
-{
-        pbm->pci_bus = pci_scan_one_pbm(pbm);
-}
-
-static void pci_sun4v_scan_bus(struct pci_controller_info *p)
+static void pci_sun4v_scan_bus(struct pci_pbm_info *pbm)
 {
         struct property *prop;
         struct device_node *dp;
 
-        if ((dp = p->pbm_A.prom_node) != NULL) {
-                prop = of_find_property(dp, "66mhz-capable", NULL);
-                p->pbm_A.is_66mhz_capable = (prop != NULL);
-
-                pbm_scan_bus(p, &p->pbm_A);
-        }
-        if ((dp = p->pbm_B.prom_node) != NULL) {
-                prop = of_find_property(dp, "66mhz-capable", NULL);
-                p->pbm_B.is_66mhz_capable = (prop != NULL);
-
-                pbm_scan_bus(p, &p->pbm_B);
-        }
+        dp = pbm->prom_node;
+        prop = of_find_property(dp, "66mhz-capable", NULL);
+        pbm->is_66mhz_capable = (prop != NULL);
+        pbm->pci_bus = pci_scan_one_pbm(pbm);
 
         /* XXX register error interrupt handlers XXX */
 }
@@ -802,20 +787,6 @@ static void pci_sun4v_iommu_init(struct pci_pbm_info *pbm)
                        pbm->name, sz);
 }
 
-static void pci_sun4v_get_bus_range(struct pci_pbm_info *pbm)
-{
-        struct property *prop;
-        unsigned int *busrange;
-
-        prop = of_find_property(pbm->prom_node, "bus-range", NULL);
-
-        busrange = prop->value;
-
-        pbm->pci_first_busno = busrange[0];
-        pbm->pci_last_busno = busrange[1];
-
-}
-
 #ifdef CONFIG_PCI_MSI
 struct pci_sun4v_msiq_entry {
         u64             version_type;
@@ -1019,114 +990,6 @@ h_error:
         return -EINVAL;
 }
 
-static void pci_sun4v_msi_init(struct pci_pbm_info *pbm)
-{
-        const u32 *val;
-        int len;
-
-        val = of_get_property(pbm->prom_node, "#msi-eqs", &len);
-        if (!val || len != 4)
-                goto no_msi;
-        pbm->msiq_num = *val;
-        if (pbm->msiq_num) {
-                const struct msiq_prop {
-                        u32 first_msiq;
-                        u32 num_msiq;
-                        u32 first_devino;
-                } *mqp;
-                const struct msi_range_prop {
-                        u32 first_msi;
-                        u32 num_msi;
-                } *mrng;
-                const struct addr_range_prop {
-                        u32 msi32_high;
-                        u32 msi32_low;
-                        u32 msi32_len;
-                        u32 msi64_high;
-                        u32 msi64_low;
-                        u32 msi64_len;
-                } *arng;
-
-                val = of_get_property(pbm->prom_node, "msi-eq-size", &len);
-                if (!val || len != 4)
-                        goto no_msi;
-
-                pbm->msiq_ent_count = *val;
-
-                mqp = of_get_property(pbm->prom_node,
-                                      "msi-eq-to-devino", &len);
-                if (!mqp || len != sizeof(struct msiq_prop))
-                        goto no_msi;
-
-                pbm->msiq_first = mqp->first_msiq;
-                pbm->msiq_first_devino = mqp->first_devino;
-
-                val = of_get_property(pbm->prom_node, "#msi", &len);
-                if (!val || len != 4)
-                        goto no_msi;
-                pbm->msi_num = *val;
-
-                mrng = of_get_property(pbm->prom_node, "msi-ranges", &len);
-                if (!mrng || len != sizeof(struct msi_range_prop))
-                        goto no_msi;
-                pbm->msi_first = mrng->first_msi;
-
-                val = of_get_property(pbm->prom_node, "msi-data-mask", &len);
-                if (!val || len != 4)
-                        goto no_msi;
-                pbm->msi_data_mask = *val;
-
-                val = of_get_property(pbm->prom_node, "msix-data-width", &len);
-                if (!val || len != 4)
-                        goto no_msi;
-                pbm->msix_data_width = *val;
-
-                arng = of_get_property(pbm->prom_node, "msi-address-ranges",
-                                       &len);
-                if (!arng || len != sizeof(struct addr_range_prop))
-                        goto no_msi;
-                pbm->msi32_start = ((u64)arng->msi32_high << 32) |
-                        (u64) arng->msi32_low;
-                pbm->msi64_start = ((u64)arng->msi64_high << 32) |
-                        (u64) arng->msi64_low;
-                pbm->msi32_len = arng->msi32_len;
-                pbm->msi64_len = arng->msi64_len;
-
-                if (msi_bitmap_alloc(pbm))
-                        goto no_msi;
-
-                if (msi_queue_alloc(pbm)) {
-                        msi_bitmap_free(pbm);
-                        goto no_msi;
-                }
-
-                printk(KERN_INFO "%s: MSI Queue first[%u] num[%u] count[%u] "
-                       "devino[0x%x]\n",
-                       pbm->name,
-                       pbm->msiq_first, pbm->msiq_num,
-                       pbm->msiq_ent_count,
-                       pbm->msiq_first_devino);
-                printk(KERN_INFO "%s: MSI first[%u] num[%u] mask[0x%x] "
-                       "width[%u]\n",
-                       pbm->name,
-                       pbm->msi_first, pbm->msi_num, pbm->msi_data_mask,
-                       pbm->msix_data_width);
-                printk(KERN_INFO "%s: MSI addr32[0x%lx:0x%x] "
-                       "addr64[0x%lx:0x%x]\n",
-                       pbm->name,
-                       pbm->msi32_start, pbm->msi32_len,
-                       pbm->msi64_start, pbm->msi64_len);
-                printk(KERN_INFO "%s: MSI queues at RA [%p]\n",
-                       pbm->name,
-                       pbm->msi_queues);
-        }
-
-        return;
-
-no_msi:
-        pbm->msiq_num = 0;
-        printk(KERN_INFO "%s: No MSI support.\n", pbm->name);
-}
 
 static int alloc_msi(struct pci_pbm_info *pbm)
 {
@@ -1245,6 +1108,117 @@ static void pci_sun4v_teardown_msi_irq(unsigned int virt_irq,
          */
         sun4v_destroy_msi(virt_irq);
 }
+
+static void pci_sun4v_msi_init(struct pci_pbm_info *pbm)
+{
+        const u32 *val;
+        int len;
+
+        val = of_get_property(pbm->prom_node, "#msi-eqs", &len);
+        if (!val || len != 4)
+                goto no_msi;
+        pbm->msiq_num = *val;
+        if (pbm->msiq_num) {
+                const struct msiq_prop {
+                        u32 first_msiq;
+                        u32 num_msiq;
+                        u32 first_devino;
+                } *mqp;
+                const struct msi_range_prop {
+                        u32 first_msi;
+                        u32 num_msi;
+                } *mrng;
+                const struct addr_range_prop {
+                        u32 msi32_high;
+                        u32 msi32_low;
+                        u32 msi32_len;
+                        u32 msi64_high;
+                        u32 msi64_low;
+                        u32 msi64_len;
+                } *arng;
+
+                val = of_get_property(pbm->prom_node, "msi-eq-size", &len);
+                if (!val || len != 4)
+                        goto no_msi;
+
+                pbm->msiq_ent_count = *val;
+
+                mqp = of_get_property(pbm->prom_node,
+                                      "msi-eq-to-devino", &len);
+                if (!mqp || len != sizeof(struct msiq_prop))
+                        goto no_msi;
+
+                pbm->msiq_first = mqp->first_msiq;
+                pbm->msiq_first_devino = mqp->first_devino;
+
+                val = of_get_property(pbm->prom_node, "#msi", &len);
+                if (!val || len != 4)
+                        goto no_msi;
+                pbm->msi_num = *val;
+
+                mrng = of_get_property(pbm->prom_node, "msi-ranges", &len);
+                if (!mrng || len != sizeof(struct msi_range_prop))
+                        goto no_msi;
+                pbm->msi_first = mrng->first_msi;
+
+                val = of_get_property(pbm->prom_node, "msi-data-mask", &len);
+                if (!val || len != 4)
+                        goto no_msi;
+                pbm->msi_data_mask = *val;
+
+                val = of_get_property(pbm->prom_node, "msix-data-width", &len);
+                if (!val || len != 4)
+                        goto no_msi;
+                pbm->msix_data_width = *val;
+
+                arng = of_get_property(pbm->prom_node, "msi-address-ranges",
+                                       &len);
+                if (!arng || len != sizeof(struct addr_range_prop))
+                        goto no_msi;
+                pbm->msi32_start = ((u64)arng->msi32_high << 32) |
+                        (u64) arng->msi32_low;
+                pbm->msi64_start = ((u64)arng->msi64_high << 32) |
+                        (u64) arng->msi64_low;
+                pbm->msi32_len = arng->msi32_len;
+                pbm->msi64_len = arng->msi64_len;
+
+                if (msi_bitmap_alloc(pbm))
+                        goto no_msi;
+
+                if (msi_queue_alloc(pbm)) {
+                        msi_bitmap_free(pbm);
+                        goto no_msi;
+                }
+
+                printk(KERN_INFO "%s: MSI Queue first[%u] num[%u] count[%u] "
+                       "devino[0x%x]\n",
+                       pbm->name,
+                       pbm->msiq_first, pbm->msiq_num,
+                       pbm->msiq_ent_count,
+                       pbm->msiq_first_devino);
+                printk(KERN_INFO "%s: MSI first[%u] num[%u] mask[0x%x] "
+                       "width[%u]\n",
+                       pbm->name,
+                       pbm->msi_first, pbm->msi_num, pbm->msi_data_mask,
+                       pbm->msix_data_width);
+                printk(KERN_INFO "%s: MSI addr32[0x%lx:0x%x] "
+                       "addr64[0x%lx:0x%x]\n",
+                       pbm->name,
+                       pbm->msi32_start, pbm->msi32_len,
+                       pbm->msi64_start, pbm->msi64_len);
+                printk(KERN_INFO "%s: MSI queues at RA [%p]\n",
+                       pbm->name,
+                       pbm->msi_queues);
+        }
+        pbm->setup_msi_irq = pci_sun4v_setup_msi_irq;
+        pbm->teardown_msi_irq = pci_sun4v_teardown_msi_irq;
+
+        return;
+
+no_msi:
+        pbm->msiq_num = 0;
+        printk(KERN_INFO "%s: No MSI support.\n", pbm->name);
+}
 #else /* CONFIG_PCI_MSI */
 static void pci_sun4v_msi_init(struct pci_pbm_info *pbm)
 {
@@ -1260,6 +1234,14 @@ static void pci_sun4v_pbm_init(struct pci_controller_info *p, struct device_node
         else
                 pbm = &p->pbm_A;
 
+        pbm->next = pci_pbm_root;
+        pci_pbm_root = pbm;
+
+        pbm->scan_bus = pci_sun4v_scan_bus;
+        pbm->pci_ops = &pci_sun4v_ops;
+
+        pbm->index = pci_num_pbms++;
+
         pbm->parent = p;
         pbm->prom_node = dp;
 
@@ -1271,7 +1253,7 @@ static void pci_sun4v_pbm_init(struct pci_controller_info *p, struct device_node
 
         pci_determine_mem_io_space(pbm);
 
-        pci_sun4v_get_bus_range(pbm);
+        pci_get_pbm_props(pbm);
         pci_sun4v_iommu_init(pbm);
         pci_sun4v_msi_init(pbm);
 }
@@ -1279,6 +1261,7 @@ static void pci_sun4v_pbm_init(struct pci_controller_info *p, struct device_node
 void sun4v_pci_init(struct device_node *dp, char *model_name)
 {
         struct pci_controller_info *p;
+        struct pci_pbm_info *pbm;
         struct iommu *iommu;
         struct property *prop;
         struct linux_prom64_registers *regs;
@@ -1290,18 +1273,9 @@ void sun4v_pci_init(struct device_node *dp, char *model_name)
 
         devhandle = (regs->phys_addr >> 32UL) & 0x0fffffff;
 
-        for (p = pci_controller_root; p; p = p->next) {
-                struct pci_pbm_info *pbm;
-
-                if (p->pbm_A.prom_node && p->pbm_B.prom_node)
-                        continue;
-
-                pbm = (p->pbm_A.prom_node ?
-                       &p->pbm_A :
-                       &p->pbm_B);
-
+        for (pbm = pci_pbm_root; pbm; pbm = pbm->next) {
                 if (pbm->devhandle == (devhandle ^ 0x40)) {
-                        pci_sun4v_pbm_init(p, dp, devhandle);
+                        pci_sun4v_pbm_init(pbm->parent, dp, devhandle);
                         return;
                 }
         }
@@ -1331,18 +1305,6 @@ void sun4v_pci_init(struct device_node *dp, char *model_name)
 
         p->pbm_B.iommu = iommu;
 
-        p->next = pci_controller_root;
-        pci_controller_root = p;
-
-        p->index = pci_num_controllers++;
-
-        p->scan_bus = pci_sun4v_scan_bus;
-#ifdef CONFIG_PCI_MSI
-        p->setup_msi_irq = pci_sun4v_setup_msi_irq;
-        p->teardown_msi_irq = pci_sun4v_teardown_msi_irq;
-#endif
-        p->pci_ops = &pci_sun4v_ops;
-
         /* Like PSYCHO and SCHIZO we have a 2GB aligned area
          * for memory space.
          */