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Diffstat (limited to 'kernel')
-rw-r--r--kernel/kexec.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/kexec.c b/kernel/kexec.c
index 36c5d9cd4cc1..2c95848fbce8 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -334,7 +334,7 @@ static struct page *kimage_alloc_pages(gfp_t gfp_mask, unsigned int order)
334 if (pages) { 334 if (pages) {
335 unsigned int count, i; 335 unsigned int count, i;
336 pages->mapping = NULL; 336 pages->mapping = NULL;
337 pages->private = order; 337 set_page_private(pages, order);
338 count = 1 << order; 338 count = 1 << order;
339 for (i = 0; i < count; i++) 339 for (i = 0; i < count; i++)
340 SetPageReserved(pages + i); 340 SetPageReserved(pages + i);
@@ -347,7 +347,7 @@ static void kimage_free_pages(struct page *page)
347{ 347{
348 unsigned int order, count, i; 348 unsigned int order, count, i;
349 349
350 order = page->private; 350 order = page_private(page);
351 count = 1 << order; 351 count = 1 << order;
352 for (i = 0; i < count; i++) 352 for (i = 0; i < count; i++)
353 ClearPageReserved(page + i); 353 ClearPageReserved(page + i);
generated by cgit v1.2.2 (git 2.25.0) at 2025-09-20 15:04:04 -0400
"hl kwb">struct uio_pruss_dev *gdev = info->priv; int intr_bit = (irq - gdev->hostirq_start + 2); int val, intr_mask = (1 << intr_bit); void __iomem *base = gdev->prussio_vaddr + gdev->pintc_base; void __iomem *intren_reg = base + PINTC_HIER; void __iomem *intrdis_reg = base + PINTC_HIDISR; void __iomem *intrstat_reg = base + PINTC_HIPIR + (intr_bit << 2); val = ioread32(intren_reg); /* Is interrupt enabled and active ? */ if (!(val & intr_mask) && (ioread32(intrstat_reg) & HIPIR_NOPEND)) return IRQ_NONE; /* Disable interrupt */ iowrite32(intr_bit, intrdis_reg); return IRQ_HANDLED; } static void pruss_cleanup(struct platform_device *dev, struct uio_pruss_dev *gdev) { int cnt; struct uio_info *p = gdev->info; for (cnt = 0; cnt < MAX_PRUSS_EVT; cnt++, p++) { uio_unregister_device(p); kfree(p->name); } iounmap(gdev->prussio_vaddr); if (gdev->ddr_vaddr) { dma_free_coherent(&dev->dev, extram_pool_sz, gdev->ddr_vaddr, gdev->ddr_paddr); } if (gdev->sram_vaddr) sram_free(gdev->sram_vaddr, sram_pool_sz); kfree(gdev->info); clk_put(gdev->pruss_clk); kfree(gdev); } static int __devinit pruss_probe(struct platform_device *dev) { struct uio_info *p; struct uio_pruss_dev *gdev; struct resource *regs_prussio; int ret = -ENODEV, cnt = 0, len; struct uio_pruss_pdata *pdata = dev->dev.platform_data; gdev = kzalloc(sizeof(struct uio_pruss_dev), GFP_KERNEL); if (!gdev) return -ENOMEM; gdev->info = kzalloc(sizeof(*p) * MAX_PRUSS_EVT, GFP_KERNEL); if (!gdev->info) { kfree(gdev); return -ENOMEM; } /* Power on PRU in case its not done as part of boot-loader */ gdev->pruss_clk = clk_get(&dev->dev, "pruss"); if (IS_ERR(gdev->pruss_clk)) { dev_err(&dev->dev, "Failed to get clock\n"); kfree(gdev->info); kfree(gdev); ret = PTR_ERR(gdev->pruss_clk); return ret; } else { clk_enable(gdev->pruss_clk); } regs_prussio = platform_get_resource(dev, IORESOURCE_MEM, 0); if (!regs_prussio) { dev_err(&dev->dev, "No PRUSS I/O resource specified\n"); goto out_free; } if (!regs_prussio->start) { dev_err(&dev->dev, "Invalid memory resource\n"); goto out_free; } gdev->sram_vaddr = sram_alloc(sram_pool_sz, &(gdev->sram_paddr)); if (!gdev->sram_vaddr) { dev_err(&dev->dev, "Could not allocate SRAM pool\n"); goto out_free; } gdev->ddr_vaddr = dma_alloc_coherent(&dev->dev, extram_pool_sz, &(gdev->ddr_paddr), GFP_KERNEL | GFP_DMA); if (!gdev->ddr_vaddr) { dev_err(&dev->dev, "Could not allocate external memory\n"); goto out_free; } len = resource_size(regs_prussio); gdev->prussio_vaddr = ioremap(regs_prussio->start, len); if (!gdev->prussio_vaddr) { dev_err(&dev->dev, "Can't remap PRUSS I/O address range\n"); goto out_free; } gdev->pintc_base = pdata->pintc_base; gdev->hostirq_start = platform_get_irq(dev, 0); for (cnt = 0, p = gdev->info; cnt < MAX_PRUSS_EVT; cnt++, p++) { p->mem[0].addr = regs_prussio->start; p->mem[0].size = resource_size(regs_prussio); p->mem[0].memtype = UIO_MEM_PHYS; p->mem[1].addr = gdev->sram_paddr; p->mem[1].size = sram_pool_sz; p->mem[1].memtype = UIO_MEM_PHYS; p->mem[2].addr = gdev->ddr_paddr; p->mem[2].size = extram_pool_sz; p->mem[2].memtype = UIO_MEM_PHYS; p->name = kasprintf(GFP_KERNEL, "pruss_evt%d", cnt); p->version = DRV_VERSION; /* Register PRUSS IRQ lines */ p->irq = gdev->hostirq_start + cnt; p->handler = pruss_handler; p->priv = gdev; ret = uio_register_device(&dev->dev, p); if (ret < 0) goto out_free; } platform_set_drvdata(dev, gdev); return 0; out_free: pruss_cleanup(dev, gdev); return ret; } static int __devexit pruss_remove(struct platform_device *dev) { struct uio_pruss_dev *gdev = platform_get_drvdata(dev); pruss_cleanup(dev, gdev); platform_set_drvdata(dev, NULL); return 0; } static struct platform_driver pruss_driver = { .probe = pruss_probe, .remove = __devexit_p(pruss_remove), .driver = { .name = DRV_NAME, .owner = THIS_MODULE, }, }; static int __init pruss_init_module(void) { return platform_driver_register(&pruss_driver); } module_init(pruss_init_module); static void __exit pruss_exit_module(void) { platform_driver_unregister(&pruss_driver); } module_exit(pruss_exit_module); MODULE_LICENSE("GPL v2"); MODULE_VERSION(DRV_VERSION); MODULE_AUTHOR("Amit Chatterjee <amit.chatterjee@ti.com>"); MODULE_AUTHOR("Pratheesh Gangadhar <pratheesh@ti.com>");