diff options
Diffstat (limited to 'arch/powerpc/platforms/cell')
| -rw-r--r-- | arch/powerpc/platforms/cell/Kconfig | 15 | ||||
| -rw-r--r-- | arch/powerpc/platforms/cell/axon_msi.c | 8 | ||||
| -rw-r--r-- | arch/powerpc/platforms/cell/interrupt.c | 6 | ||||
| -rw-r--r-- | arch/powerpc/platforms/cell/ras.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/cell/spider-pic.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/file.c | 55 | ||||
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/lscsa_alloc.c | 124 | ||||
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/sched.c | 5 |
8 files changed, 12 insertions, 205 deletions
diff --git a/arch/powerpc/platforms/cell/Kconfig b/arch/powerpc/platforms/cell/Kconfig index 2f23133ab..b0ac1773c 100644 --- a/arch/powerpc/platforms/cell/Kconfig +++ b/arch/powerpc/platforms/cell/Kconfig @@ -57,21 +57,6 @@ config SPU_FS Units on machines implementing the Broadband Processor Architecture. -config SPU_FS_64K_LS - bool "Use 64K pages to map SPE local store" - # we depend on PPC_MM_SLICES for now rather than selecting - # it because we depend on hugetlbfs hooks being present. We - # will fix that when the generic code has been improved to - # not require hijacking hugetlbfs hooks. - depends on SPU_FS && PPC_MM_SLICES && !PPC_64K_PAGES - default y - select PPC_HAS_HASH_64K - help - This option causes SPE local stores to be mapped in process - address spaces using 64K pages while the rest of the kernel - uses 4K pages. This can improve performances of applications - using multiple SPEs by lowering the TLB pressure on them. - config SPU_BASE bool default n diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c index fe51de4fc..e0e68a1c0 100644 --- a/arch/powerpc/platforms/cell/axon_msi.c +++ b/arch/powerpc/platforms/cell/axon_msi.c @@ -93,7 +93,7 @@ static void msic_dcr_write(struct axon_msic *msic, unsigned int dcr_n, u32 val) dcr_write(msic->dcr_host, dcr_n, val); } -static void axon_msi_cascade(unsigned int irq, struct irq_desc *desc) +static void axon_msi_cascade(struct irq_desc *desc) { struct irq_chip *chip = irq_desc_get_chip(desc); struct axon_msic *msic = irq_desc_get_handler_data(desc); @@ -213,7 +213,7 @@ static int setup_msi_msg_address(struct pci_dev *dev, struct msi_msg *msg) return -ENODEV; } - entry = list_first_entry(&dev->msi_list, struct msi_desc, list); + entry = first_pci_msi_entry(dev); for (; dn; dn = of_get_next_parent(dn)) { if (entry->msi_attrib.is_64) { @@ -269,7 +269,7 @@ static int axon_msi_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) if (rc) return rc; - list_for_each_entry(entry, &dev->msi_list, list) { + for_each_pci_msi_entry(entry, dev) { virq = irq_create_direct_mapping(msic->irq_domain); if (virq == NO_IRQ) { dev_warn(&dev->dev, @@ -292,7 +292,7 @@ static void axon_msi_teardown_msi_irqs(struct pci_dev *dev) dev_dbg(&dev->dev, "axon_msi: tearing down msi irqs\n"); - list_for_each_entry(entry, &dev->msi_list, list) { + for_each_pci_msi_entry(entry, dev) { if (entry->irq == NO_IRQ) continue; diff --git a/arch/powerpc/platforms/cell/interrupt.c b/arch/powerpc/platforms/cell/interrupt.c index 3af8324c1..9f609fc8d 100644 --- a/arch/powerpc/platforms/cell/interrupt.c +++ b/arch/powerpc/platforms/cell/interrupt.c @@ -99,11 +99,12 @@ static void iic_ioexc_eoi(struct irq_data *d) { } -static void iic_ioexc_cascade(unsigned int irq, struct irq_desc *desc) +static void iic_ioexc_cascade(struct irq_desc *desc) { struct irq_chip *chip = irq_desc_get_chip(desc); struct cbe_iic_regs __iomem *node_iic = (void __iomem *)irq_desc_get_handler_data(desc); + unsigned int irq = irq_desc_get_irq(desc); unsigned int base = (irq & 0xffffff00) | IIC_IRQ_TYPE_IOEXC; unsigned long bits, ack; int cascade; @@ -222,7 +223,8 @@ void iic_request_IPIs(void) #endif /* CONFIG_SMP */ -static int iic_host_match(struct irq_domain *h, struct device_node *node) +static int iic_host_match(struct irq_domain *h, struct device_node *node, + enum irq_domain_bus_token bus_token) { return of_device_is_compatible(node, "IBM,CBEA-Internal-Interrupt-Controller"); diff --git a/arch/powerpc/platforms/cell/ras.c b/arch/powerpc/platforms/cell/ras.c index e865d7481..2d4f60c01 100644 --- a/arch/powerpc/platforms/cell/ras.c +++ b/arch/powerpc/platforms/cell/ras.c @@ -123,7 +123,7 @@ static int __init cbe_ptcal_enable_on_node(int nid, int order) area->nid = nid; area->order = order; - area->pages = alloc_pages_exact_node(area->nid, + area->pages = __alloc_pages_node(area->nid, GFP_KERNEL|__GFP_THISNODE, area->order); diff --git a/arch/powerpc/platforms/cell/spider-pic.c b/arch/powerpc/platforms/cell/spider-pic.c index 1f72f4ab6..9d27de62d 100644 --- a/arch/powerpc/platforms/cell/spider-pic.c +++ b/arch/powerpc/platforms/cell/spider-pic.c @@ -199,7 +199,7 @@ static const struct irq_domain_ops spider_host_ops = { .xlate = spider_host_xlate, }; -static void spider_irq_cascade(unsigned int irq, struct irq_desc *desc) +static void spider_irq_cascade(struct irq_desc *desc) { struct irq_chip *chip = irq_desc_get_chip(desc); struct spider_pic *pic = irq_desc_get_handler_data(desc); diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c index d966bbe58..5038fd578 100644 --- a/arch/powerpc/platforms/cell/spufs/file.c +++ b/arch/powerpc/platforms/cell/spufs/file.c @@ -239,23 +239,6 @@ spufs_mem_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf) unsigned long address = (unsigned long)vmf->virtual_address; unsigned long pfn, offset; -#ifdef CONFIG_SPU_FS_64K_LS - struct spu_state *csa = &ctx->csa; - int psize; - - /* Check what page size we are using */ - psize = get_slice_psize(vma->vm_mm, address); - - /* Some sanity checking */ - BUG_ON(csa->use_big_pages != (psize == MMU_PAGE_64K)); - - /* Wow, 64K, cool, we need to align the address though */ - if (csa->use_big_pages) { - BUG_ON(vma->vm_start & 0xffff); - address &= ~0xfffful; - } -#endif /* CONFIG_SPU_FS_64K_LS */ - offset = vmf->pgoff << PAGE_SHIFT; if (offset >= LS_SIZE) return VM_FAULT_SIGBUS; @@ -310,22 +293,6 @@ static const struct vm_operations_struct spufs_mem_mmap_vmops = { static int spufs_mem_mmap(struct file *file, struct vm_area_struct *vma) { -#ifdef CONFIG_SPU_FS_64K_LS - struct spu_context *ctx = file->private_data; - struct spu_state *csa = &ctx->csa; - - /* Sanity check VMA alignment */ - if (csa->use_big_pages) { - pr_debug("spufs_mem_mmap 64K, start=0x%lx, end=0x%lx," - " pgoff=0x%lx\n", vma->vm_start, vma->vm_end, - vma->vm_pgoff); - if (vma->vm_start & 0xffff) - return -EINVAL; - if (vma->vm_pgoff & 0xf) - return -EINVAL; - } -#endif /* CONFIG_SPU_FS_64K_LS */ - if (!(vma->vm_flags & VM_SHARED)) return -EINVAL; @@ -336,25 +303,6 @@ static int spufs_mem_mmap(struct file *file, struct vm_area_struct *vma) return 0; } -#ifdef CONFIG_SPU_FS_64K_LS -static unsigned long spufs_get_unmapped_area(struct file *file, - unsigned long addr, unsigned long len, unsigned long pgoff, - unsigned long flags) -{ - struct spu_context *ctx = file->private_data; - struct spu_state *csa = &ctx->csa; - - /* If not using big pages, fallback to normal MM g_u_a */ - if (!csa->use_big_pages) - return current->mm->get_unmapped_area(file, addr, len, - pgoff, flags); - - /* Else, try to obtain a 64K pages slice */ - return slice_get_unmapped_area(addr, len, flags, - MMU_PAGE_64K, 1); -} -#endif /* CONFIG_SPU_FS_64K_LS */ - static const struct file_operations spufs_mem_fops = { .open = spufs_mem_open, .release = spufs_mem_release, @@ -362,9 +310,6 @@ static const struct file_operations spufs_mem_fops = { .write = spufs_mem_write, .llseek = generic_file_llseek, .mmap = spufs_mem_mmap, -#ifdef CONFIG_SPU_FS_64K_LS - .get_unmapped_area = spufs_get_unmapped_area, -#endif }; static int spufs_ps_fault(struct vm_area_struct *vma, diff --git a/arch/powerpc/platforms/cell/spufs/lscsa_alloc.c b/arch/powerpc/platforms/cell/spufs/lscsa_alloc.c index 147069938..b847e9403 100644 --- a/arch/powerpc/platforms/cell/spufs/lscsa_alloc.c +++ b/arch/powerpc/platforms/cell/spufs/lscsa_alloc.c @@ -31,7 +31,7 @@ #include "spufs.h" -static int spu_alloc_lscsa_std(struct spu_state *csa) +int spu_alloc_lscsa(struct spu_state *csa) { struct spu_lscsa *lscsa; unsigned char *p; @@ -48,7 +48,7 @@ static int spu_alloc_lscsa_std(struct spu_state *csa) return 0; } -static void spu_free_lscsa_std(struct spu_state *csa) +void spu_free_lscsa(struct spu_state *csa) { /* Clear reserved bit before vfree. */ unsigned char *p; @@ -61,123 +61,3 @@ static void spu_free_lscsa_std(struct spu_state *csa) vfree(csa->lscsa); } - -#ifdef CONFIG_SPU_FS_64K_LS - -#define SPU_64K_PAGE_SHIFT 16 -#define SPU_64K_PAGE_ORDER (SPU_64K_PAGE_SHIFT - PAGE_SHIFT) -#define SPU_64K_PAGE_COUNT (1ul << SPU_64K_PAGE_ORDER) - -int spu_alloc_lscsa(struct spu_state *csa) -{ - struct page **pgarray; - unsigned char *p; - int i, j, n_4k; - - /* Check availability of 64K pages */ - if (!spu_64k_pages_available()) - goto fail; - - csa->use_big_pages = 1; - - pr_debug("spu_alloc_lscsa(csa=0x%p), trying to allocate 64K pages\n", - csa); - - /* First try to allocate our 64K pages. We need 5 of them - * with the current implementation. In the future, we should try - * to separate the lscsa with the actual local store image, thus - * allowing us to require only 4 64K pages per context - */ - for (i = 0; i < SPU_LSCSA_NUM_BIG_PAGES; i++) { - /* XXX This is likely to fail, we should use a special pool - * similar to what hugetlbfs does. - */ - csa->lscsa_pages[i] = alloc_pages(GFP_KERNEL, - SPU_64K_PAGE_ORDER); - if (csa->lscsa_pages[i] == NULL) - goto fail; - } - - pr_debug(" success ! creating vmap...\n"); - - /* Now we need to create a vmalloc mapping of these for the kernel - * and SPU context switch code to use. Currently, we stick to a - * normal kernel vmalloc mapping, which in our case will be 4K - */ - n_4k = SPU_64K_PAGE_COUNT * SPU_LSCSA_NUM_BIG_PAGES; - pgarray = kmalloc(sizeof(struct page *) * n_4k, GFP_KERNEL); - if (pgarray == NULL) - goto fail; - for (i = 0; i < SPU_LSCSA_NUM_BIG_PAGES; i++) - for (j = 0; j < SPU_64K_PAGE_COUNT; j++) - /* We assume all the struct page's are contiguous - * which should be hopefully the case for an order 4 - * allocation.. - */ - pgarray[i * SPU_64K_PAGE_COUNT + j] = - csa->lscsa_pages[i] + j; - csa->lscsa = vmap(pgarray, n_4k, VM_USERMAP, PAGE_KERNEL); - kfree(pgarray); - if (csa->lscsa == NULL) - goto fail; - - memset(csa->lscsa, 0, sizeof(struct spu_lscsa)); - - /* Set LS pages reserved to allow for user-space mapping. - * - * XXX isn't that a bit obsolete ? I think we should just - * make sure the page count is high enough. Anyway, won't harm - * for now - */ - for (p = csa->lscsa->ls; p < csa->lscsa->ls + LS_SIZE; p += PAGE_SIZE) - SetPageReserved(vmalloc_to_page(p)); - - pr_debug(" all good !\n"); - - return 0; -fail: - pr_debug("spufs: failed to allocate lscsa 64K pages, falling back\n"); - spu_free_lscsa(csa); - return spu_alloc_lscsa_std(csa); -} - -void spu_free_lscsa(struct spu_state *csa) -{ - unsigned char *p; - int i; - - if (!csa->use_big_pages) { - spu_free_lscsa_std(csa); - return; - } - csa->use_big_pages = 0; - - if (csa->lscsa == NULL) - goto free_pages; - - for (p = csa->lscsa->ls; p < csa->lscsa->ls + LS_SIZE; p += PAGE_SIZE) - ClearPageReserved(vmalloc_to_page(p)); - - vunmap(csa->lscsa); - csa->lscsa = NULL; - - free_pages: - - for (i = 0; i < SPU_LSCSA_NUM_BIG_PAGES; i++) - if (csa->lscsa_pages[i]) - __free_pages(csa->lscsa_pages[i], SPU_64K_PAGE_ORDER); -} - -#else /* CONFIG_SPU_FS_64K_LS */ - -int spu_alloc_lscsa(struct spu_state *csa) -{ - return spu_alloc_lscsa_std(csa); -} - -void spu_free_lscsa(struct spu_state *csa) -{ - spu_free_lscsa_std(csa); -} - -#endif /* !defined(CONFIG_SPU_FS_64K_LS) */ diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c index 998f632e7..5c80a0f9d 100644 --- a/arch/powerpc/platforms/cell/spufs/sched.c +++ b/arch/powerpc/platforms/cell/spufs/sched.c @@ -64,11 +64,6 @@ static struct timer_list spusched_timer; static struct timer_list spuloadavg_timer; /* - * Priority of a normal, non-rt, non-niced'd process (aka nice level 0). - */ -#define NORMAL_PRIO 120 - -/* * Frequency of the spu scheduler tick. By default we do one SPU scheduler * tick for every 10 CPU scheduler ticks. */ |