1 // SPDX-License-Identifier: GPL-2.0-only
3 * Host side test driver to test endpoint functionality
5 * Copyright (C) 2017 Texas Instruments
6 * Author: Kishon Vijay Abraham I <kishon@ti.com>
9 #include <linux/crc32.h>
10 #include <linux/delay.h>
13 #include <linux/interrupt.h>
14 #include <linux/irq.h>
15 #include <linux/miscdevice.h>
16 #include <linux/module.h>
17 #include <linux/mutex.h>
18 #include <linux/random.h>
19 #include <linux/slab.h>
20 #include <linux/uaccess.h>
21 #include <linux/pci.h>
22 #include <linux/pci_ids.h>
24 #include <linux/pci_regs.h>
26 #include <uapi/linux/pcitest.h>
28 #define DRV_MODULE_NAME "pci-endpoint-test"
30 #define IRQ_TYPE_UNDEFINED -1
31 #define IRQ_TYPE_LEGACY 0
32 #define IRQ_TYPE_MSI 1
33 #define IRQ_TYPE_MSIX 2
35 #define PCI_ENDPOINT_TEST_MAGIC 0x0
37 #define PCI_ENDPOINT_TEST_COMMAND 0x4
38 #define COMMAND_RAISE_LEGACY_IRQ BIT(0)
39 #define COMMAND_RAISE_MSI_IRQ BIT(1)
40 #define COMMAND_RAISE_MSIX_IRQ BIT(2)
41 #define COMMAND_READ BIT(3)
42 #define COMMAND_WRITE BIT(4)
43 #define COMMAND_COPY BIT(5)
45 #define PCI_ENDPOINT_TEST_STATUS 0x8
46 #define STATUS_READ_SUCCESS BIT(0)
47 #define STATUS_READ_FAIL BIT(1)
48 #define STATUS_WRITE_SUCCESS BIT(2)
49 #define STATUS_WRITE_FAIL BIT(3)
50 #define STATUS_COPY_SUCCESS BIT(4)
51 #define STATUS_COPY_FAIL BIT(5)
52 #define STATUS_IRQ_RAISED BIT(6)
53 #define STATUS_SRC_ADDR_INVALID BIT(7)
54 #define STATUS_DST_ADDR_INVALID BIT(8)
56 #define PCI_ENDPOINT_TEST_LOWER_SRC_ADDR 0x0c
57 #define PCI_ENDPOINT_TEST_UPPER_SRC_ADDR 0x10
59 #define PCI_ENDPOINT_TEST_LOWER_DST_ADDR 0x14
60 #define PCI_ENDPOINT_TEST_UPPER_DST_ADDR 0x18
62 #define PCI_ENDPOINT_TEST_SIZE 0x1c
63 #define PCI_ENDPOINT_TEST_CHECKSUM 0x20
65 #define PCI_ENDPOINT_TEST_IRQ_TYPE 0x24
66 #define PCI_ENDPOINT_TEST_IRQ_NUMBER 0x28
68 #define PCI_ENDPOINT_TEST_FLAGS 0x2c
69 #define FLAG_USE_DMA BIT(0)
71 #define PCI_DEVICE_ID_TI_AM654 0xb00c
72 #define PCI_DEVICE_ID_TI_J7200 0xb00f
73 #define PCI_DEVICE_ID_TI_AM64 0xb010
74 #define PCI_DEVICE_ID_LS1088A 0x80c0
76 #define is_am654_pci_dev(pdev) \
77 ((pdev)->device == PCI_DEVICE_ID_TI_AM654)
79 #define PCI_DEVICE_ID_RENESAS_R8A774A1 0x0028
80 #define PCI_DEVICE_ID_RENESAS_R8A774B1 0x002b
81 #define PCI_DEVICE_ID_RENESAS_R8A774C0 0x002d
82 #define PCI_DEVICE_ID_RENESAS_R8A774E1 0x0025
84 static DEFINE_IDA(pci_endpoint_test_ida);
86 #define to_endpoint_test(priv) container_of((priv), struct pci_endpoint_test, \
90 module_param(no_msi, bool, 0444);
91 MODULE_PARM_DESC(no_msi, "Disable MSI interrupt in pci_endpoint_test");
93 static int irq_type = IRQ_TYPE_MSI;
94 module_param(irq_type, int, 0444);
95 MODULE_PARM_DESC(irq_type, "IRQ mode selection in pci_endpoint_test (0 - Legacy, 1 - MSI, 2 - MSI-X)");
106 struct pci_endpoint_test {
107 struct pci_dev *pdev;
109 void __iomem *bar[PCI_STD_NUM_BARS];
110 struct completion irq_raised;
114 /* mutex to protect the ioctls */
116 struct miscdevice miscdev;
117 enum pci_barno test_reg_bar;
122 struct pci_endpoint_test_data {
123 enum pci_barno test_reg_bar;
128 static inline u32 pci_endpoint_test_readl(struct pci_endpoint_test *test,
131 return readl(test->base + offset);
134 static inline void pci_endpoint_test_writel(struct pci_endpoint_test *test,
135 u32 offset, u32 value)
137 writel(value, test->base + offset);
140 static inline u32 pci_endpoint_test_bar_readl(struct pci_endpoint_test *test,
143 return readl(test->bar[bar] + offset);
146 static inline void pci_endpoint_test_bar_writel(struct pci_endpoint_test *test,
147 int bar, u32 offset, u32 value)
149 writel(value, test->bar[bar] + offset);
152 static irqreturn_t pci_endpoint_test_irqhandler(int irq, void *dev_id)
154 struct pci_endpoint_test *test = dev_id;
157 reg = pci_endpoint_test_readl(test, PCI_ENDPOINT_TEST_STATUS);
158 if (reg & STATUS_IRQ_RAISED) {
159 test->last_irq = irq;
160 complete(&test->irq_raised);
161 reg &= ~STATUS_IRQ_RAISED;
163 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_STATUS,
169 static void pci_endpoint_test_free_irq_vectors(struct pci_endpoint_test *test)
171 struct pci_dev *pdev = test->pdev;
173 pci_free_irq_vectors(pdev);
174 test->irq_type = IRQ_TYPE_UNDEFINED;
177 static bool pci_endpoint_test_alloc_irq_vectors(struct pci_endpoint_test *test,
181 struct pci_dev *pdev = test->pdev;
182 struct device *dev = &pdev->dev;
186 case IRQ_TYPE_LEGACY:
187 irq = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_LEGACY);
189 dev_err(dev, "Failed to get Legacy interrupt\n");
192 irq = pci_alloc_irq_vectors(pdev, 1, 32, PCI_IRQ_MSI);
194 dev_err(dev, "Failed to get MSI interrupts\n");
197 irq = pci_alloc_irq_vectors(pdev, 1, 2048, PCI_IRQ_MSIX);
199 dev_err(dev, "Failed to get MSI-X interrupts\n");
202 dev_err(dev, "Invalid IRQ type selected\n");
210 test->irq_type = type;
211 test->num_irqs = irq;
216 static void pci_endpoint_test_release_irq(struct pci_endpoint_test *test)
219 struct pci_dev *pdev = test->pdev;
220 struct device *dev = &pdev->dev;
222 for (i = 0; i < test->num_irqs; i++)
223 devm_free_irq(dev, pci_irq_vector(pdev, i), test);
228 static bool pci_endpoint_test_request_irq(struct pci_endpoint_test *test)
232 struct pci_dev *pdev = test->pdev;
233 struct device *dev = &pdev->dev;
235 for (i = 0; i < test->num_irqs; i++) {
236 err = devm_request_irq(dev, pci_irq_vector(pdev, i),
237 pci_endpoint_test_irqhandler,
238 IRQF_SHARED, test->name, test);
247 case IRQ_TYPE_LEGACY:
248 dev_err(dev, "Failed to request IRQ %d for Legacy\n",
249 pci_irq_vector(pdev, i));
252 dev_err(dev, "Failed to request IRQ %d for MSI %d\n",
253 pci_irq_vector(pdev, i),
257 dev_err(dev, "Failed to request IRQ %d for MSI-X %d\n",
258 pci_irq_vector(pdev, i),
266 static bool pci_endpoint_test_bar(struct pci_endpoint_test *test,
267 enum pci_barno barno)
272 struct pci_dev *pdev = test->pdev;
274 if (!test->bar[barno])
277 size = pci_resource_len(pdev, barno);
279 if (barno == test->test_reg_bar)
282 for (j = 0; j < size; j += 4)
283 pci_endpoint_test_bar_writel(test, barno, j, 0xA0A0A0A0);
285 for (j = 0; j < size; j += 4) {
286 val = pci_endpoint_test_bar_readl(test, barno, j);
287 if (val != 0xA0A0A0A0)
294 static bool pci_endpoint_test_legacy_irq(struct pci_endpoint_test *test)
298 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_TYPE,
300 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_NUMBER, 0);
301 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_COMMAND,
302 COMMAND_RAISE_LEGACY_IRQ);
303 val = wait_for_completion_timeout(&test->irq_raised,
304 msecs_to_jiffies(1000));
311 static bool pci_endpoint_test_msi_irq(struct pci_endpoint_test *test,
312 u16 msi_num, bool msix)
315 struct pci_dev *pdev = test->pdev;
317 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_TYPE,
318 msix == false ? IRQ_TYPE_MSI :
320 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_NUMBER, msi_num);
321 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_COMMAND,
322 msix == false ? COMMAND_RAISE_MSI_IRQ :
323 COMMAND_RAISE_MSIX_IRQ);
324 val = wait_for_completion_timeout(&test->irq_raised,
325 msecs_to_jiffies(1000));
329 if (pci_irq_vector(pdev, msi_num - 1) == test->last_irq)
335 static bool pci_endpoint_test_copy(struct pci_endpoint_test *test,
338 struct pci_endpoint_test_xfer_param param;
345 dma_addr_t src_phys_addr;
346 dma_addr_t dst_phys_addr;
347 struct pci_dev *pdev = test->pdev;
348 struct device *dev = &pdev->dev;
350 dma_addr_t orig_src_phys_addr;
352 dma_addr_t orig_dst_phys_addr;
354 size_t alignment = test->alignment;
355 int irq_type = test->irq_type;
360 err = copy_from_user(¶m, (void __user *)arg, sizeof(param));
362 dev_err(dev, "Failed to get transfer param\n");
367 if (size > SIZE_MAX - alignment)
370 use_dma = !!(param.flags & PCITEST_FLAGS_USE_DMA);
372 flags |= FLAG_USE_DMA;
374 if (irq_type < IRQ_TYPE_LEGACY || irq_type > IRQ_TYPE_MSIX) {
375 dev_err(dev, "Invalid IRQ type option\n");
379 orig_src_addr = kzalloc(size + alignment, GFP_KERNEL);
380 if (!orig_src_addr) {
381 dev_err(dev, "Failed to allocate source buffer\n");
386 get_random_bytes(orig_src_addr, size + alignment);
387 orig_src_phys_addr = dma_map_single(dev, orig_src_addr,
388 size + alignment, DMA_TO_DEVICE);
389 if (dma_mapping_error(dev, orig_src_phys_addr)) {
390 dev_err(dev, "failed to map source buffer address\n");
392 goto err_src_phys_addr;
395 if (alignment && !IS_ALIGNED(orig_src_phys_addr, alignment)) {
396 src_phys_addr = PTR_ALIGN(orig_src_phys_addr, alignment);
397 offset = src_phys_addr - orig_src_phys_addr;
398 src_addr = orig_src_addr + offset;
400 src_phys_addr = orig_src_phys_addr;
401 src_addr = orig_src_addr;
404 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_LOWER_SRC_ADDR,
405 lower_32_bits(src_phys_addr));
407 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_UPPER_SRC_ADDR,
408 upper_32_bits(src_phys_addr));
410 src_crc32 = crc32_le(~0, src_addr, size);
412 orig_dst_addr = kzalloc(size + alignment, GFP_KERNEL);
413 if (!orig_dst_addr) {
414 dev_err(dev, "Failed to allocate destination address\n");
419 orig_dst_phys_addr = dma_map_single(dev, orig_dst_addr,
420 size + alignment, DMA_FROM_DEVICE);
421 if (dma_mapping_error(dev, orig_dst_phys_addr)) {
422 dev_err(dev, "failed to map destination buffer address\n");
424 goto err_dst_phys_addr;
427 if (alignment && !IS_ALIGNED(orig_dst_phys_addr, alignment)) {
428 dst_phys_addr = PTR_ALIGN(orig_dst_phys_addr, alignment);
429 offset = dst_phys_addr - orig_dst_phys_addr;
430 dst_addr = orig_dst_addr + offset;
432 dst_phys_addr = orig_dst_phys_addr;
433 dst_addr = orig_dst_addr;
436 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_LOWER_DST_ADDR,
437 lower_32_bits(dst_phys_addr));
438 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_UPPER_DST_ADDR,
439 upper_32_bits(dst_phys_addr));
441 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_SIZE,
444 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_FLAGS, flags);
445 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_TYPE, irq_type);
446 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_NUMBER, 1);
447 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_COMMAND,
450 wait_for_completion(&test->irq_raised);
452 dma_unmap_single(dev, orig_dst_phys_addr, size + alignment,
455 dst_crc32 = crc32_le(~0, dst_addr, size);
456 if (dst_crc32 == src_crc32)
460 kfree(orig_dst_addr);
463 dma_unmap_single(dev, orig_src_phys_addr, size + alignment,
467 kfree(orig_src_addr);
473 static bool pci_endpoint_test_write(struct pci_endpoint_test *test,
476 struct pci_endpoint_test_xfer_param param;
482 dma_addr_t phys_addr;
483 struct pci_dev *pdev = test->pdev;
484 struct device *dev = &pdev->dev;
486 dma_addr_t orig_phys_addr;
488 size_t alignment = test->alignment;
489 int irq_type = test->irq_type;
494 err = copy_from_user(¶m, (void __user *)arg, sizeof(param));
496 dev_err(dev, "Failed to get transfer param\n");
501 if (size > SIZE_MAX - alignment)
504 use_dma = !!(param.flags & PCITEST_FLAGS_USE_DMA);
506 flags |= FLAG_USE_DMA;
508 if (irq_type < IRQ_TYPE_LEGACY || irq_type > IRQ_TYPE_MSIX) {
509 dev_err(dev, "Invalid IRQ type option\n");
513 orig_addr = kzalloc(size + alignment, GFP_KERNEL);
515 dev_err(dev, "Failed to allocate address\n");
520 get_random_bytes(orig_addr, size + alignment);
522 orig_phys_addr = dma_map_single(dev, orig_addr, size + alignment,
524 if (dma_mapping_error(dev, orig_phys_addr)) {
525 dev_err(dev, "failed to map source buffer address\n");
530 if (alignment && !IS_ALIGNED(orig_phys_addr, alignment)) {
531 phys_addr = PTR_ALIGN(orig_phys_addr, alignment);
532 offset = phys_addr - orig_phys_addr;
533 addr = orig_addr + offset;
535 phys_addr = orig_phys_addr;
539 crc32 = crc32_le(~0, addr, size);
540 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_CHECKSUM,
543 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_LOWER_SRC_ADDR,
544 lower_32_bits(phys_addr));
545 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_UPPER_SRC_ADDR,
546 upper_32_bits(phys_addr));
548 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_SIZE, size);
550 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_FLAGS, flags);
551 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_TYPE, irq_type);
552 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_NUMBER, 1);
553 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_COMMAND,
556 wait_for_completion(&test->irq_raised);
558 reg = pci_endpoint_test_readl(test, PCI_ENDPOINT_TEST_STATUS);
559 if (reg & STATUS_READ_SUCCESS)
562 dma_unmap_single(dev, orig_phys_addr, size + alignment,
572 static bool pci_endpoint_test_read(struct pci_endpoint_test *test,
575 struct pci_endpoint_test_xfer_param param;
581 dma_addr_t phys_addr;
582 struct pci_dev *pdev = test->pdev;
583 struct device *dev = &pdev->dev;
585 dma_addr_t orig_phys_addr;
587 size_t alignment = test->alignment;
588 int irq_type = test->irq_type;
592 err = copy_from_user(¶m, (void __user *)arg, sizeof(param));
594 dev_err(dev, "Failed to get transfer param\n");
599 if (size > SIZE_MAX - alignment)
602 use_dma = !!(param.flags & PCITEST_FLAGS_USE_DMA);
604 flags |= FLAG_USE_DMA;
606 if (irq_type < IRQ_TYPE_LEGACY || irq_type > IRQ_TYPE_MSIX) {
607 dev_err(dev, "Invalid IRQ type option\n");
611 orig_addr = kzalloc(size + alignment, GFP_KERNEL);
613 dev_err(dev, "Failed to allocate destination address\n");
618 orig_phys_addr = dma_map_single(dev, orig_addr, size + alignment,
620 if (dma_mapping_error(dev, orig_phys_addr)) {
621 dev_err(dev, "failed to map source buffer address\n");
626 if (alignment && !IS_ALIGNED(orig_phys_addr, alignment)) {
627 phys_addr = PTR_ALIGN(orig_phys_addr, alignment);
628 offset = phys_addr - orig_phys_addr;
629 addr = orig_addr + offset;
631 phys_addr = orig_phys_addr;
635 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_LOWER_DST_ADDR,
636 lower_32_bits(phys_addr));
637 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_UPPER_DST_ADDR,
638 upper_32_bits(phys_addr));
640 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_SIZE, size);
642 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_FLAGS, flags);
643 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_TYPE, irq_type);
644 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_NUMBER, 1);
645 pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_COMMAND,
648 wait_for_completion(&test->irq_raised);
650 dma_unmap_single(dev, orig_phys_addr, size + alignment,
653 crc32 = crc32_le(~0, addr, size);
654 if (crc32 == pci_endpoint_test_readl(test, PCI_ENDPOINT_TEST_CHECKSUM))
663 static bool pci_endpoint_test_clear_irq(struct pci_endpoint_test *test)
665 pci_endpoint_test_release_irq(test);
666 pci_endpoint_test_free_irq_vectors(test);
670 static bool pci_endpoint_test_set_irq(struct pci_endpoint_test *test,
673 struct pci_dev *pdev = test->pdev;
674 struct device *dev = &pdev->dev;
676 if (req_irq_type < IRQ_TYPE_LEGACY || req_irq_type > IRQ_TYPE_MSIX) {
677 dev_err(dev, "Invalid IRQ type option\n");
681 if (test->irq_type == req_irq_type)
684 pci_endpoint_test_release_irq(test);
685 pci_endpoint_test_free_irq_vectors(test);
687 if (!pci_endpoint_test_alloc_irq_vectors(test, req_irq_type))
690 if (!pci_endpoint_test_request_irq(test))
696 pci_endpoint_test_free_irq_vectors(test);
700 static long pci_endpoint_test_ioctl(struct file *file, unsigned int cmd,
705 struct pci_endpoint_test *test = to_endpoint_test(file->private_data);
706 struct pci_dev *pdev = test->pdev;
708 mutex_lock(&test->mutex);
714 if (is_am654_pci_dev(pdev) && bar == BAR_0)
716 ret = pci_endpoint_test_bar(test, bar);
718 case PCITEST_LEGACY_IRQ:
719 ret = pci_endpoint_test_legacy_irq(test);
723 ret = pci_endpoint_test_msi_irq(test, arg, cmd == PCITEST_MSIX);
726 ret = pci_endpoint_test_write(test, arg);
729 ret = pci_endpoint_test_read(test, arg);
732 ret = pci_endpoint_test_copy(test, arg);
734 case PCITEST_SET_IRQTYPE:
735 ret = pci_endpoint_test_set_irq(test, arg);
737 case PCITEST_GET_IRQTYPE:
740 case PCITEST_CLEAR_IRQ:
741 ret = pci_endpoint_test_clear_irq(test);
746 mutex_unlock(&test->mutex);
750 static const struct file_operations pci_endpoint_test_fops = {
751 .owner = THIS_MODULE,
752 .unlocked_ioctl = pci_endpoint_test_ioctl,
755 static int pci_endpoint_test_probe(struct pci_dev *pdev,
756 const struct pci_device_id *ent)
763 struct device *dev = &pdev->dev;
764 struct pci_endpoint_test *test;
765 struct pci_endpoint_test_data *data;
766 enum pci_barno test_reg_bar = BAR_0;
767 struct miscdevice *misc_device;
769 if (pci_is_bridge(pdev))
772 test = devm_kzalloc(dev, sizeof(*test), GFP_KERNEL);
776 test->test_reg_bar = 0;
779 test->irq_type = IRQ_TYPE_UNDEFINED;
782 irq_type = IRQ_TYPE_LEGACY;
784 data = (struct pci_endpoint_test_data *)ent->driver_data;
786 test_reg_bar = data->test_reg_bar;
787 test->test_reg_bar = test_reg_bar;
788 test->alignment = data->alignment;
789 irq_type = data->irq_type;
792 init_completion(&test->irq_raised);
793 mutex_init(&test->mutex);
795 if ((dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(48)) != 0) &&
796 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)) != 0) {
797 dev_err(dev, "Cannot set DMA mask\n");
801 err = pci_enable_device(pdev);
803 dev_err(dev, "Cannot enable PCI device\n");
807 err = pci_request_regions(pdev, DRV_MODULE_NAME);
809 dev_err(dev, "Cannot obtain PCI resources\n");
810 goto err_disable_pdev;
813 pci_set_master(pdev);
815 if (!pci_endpoint_test_alloc_irq_vectors(test, irq_type)) {
817 goto err_disable_irq;
820 for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) {
821 if (pci_resource_flags(pdev, bar) & IORESOURCE_MEM) {
822 base = pci_ioremap_bar(pdev, bar);
824 dev_err(dev, "Failed to read BAR%d\n", bar);
825 WARN_ON(bar == test_reg_bar);
827 test->bar[bar] = base;
831 test->base = test->bar[test_reg_bar];
834 dev_err(dev, "Cannot perform PCI test without BAR%d\n",
839 pci_set_drvdata(pdev, test);
841 id = ida_simple_get(&pci_endpoint_test_ida, 0, 0, GFP_KERNEL);
844 dev_err(dev, "Unable to get id\n");
848 snprintf(name, sizeof(name), DRV_MODULE_NAME ".%d", id);
849 test->name = kstrdup(name, GFP_KERNEL);
855 if (!pci_endpoint_test_request_irq(test)) {
857 goto err_kfree_test_name;
860 misc_device = &test->miscdev;
861 misc_device->minor = MISC_DYNAMIC_MINOR;
862 misc_device->name = kstrdup(name, GFP_KERNEL);
863 if (!misc_device->name) {
865 goto err_release_irq;
867 misc_device->parent = &pdev->dev;
868 misc_device->fops = &pci_endpoint_test_fops,
870 err = misc_register(misc_device);
872 dev_err(dev, "Failed to register device\n");
879 kfree(misc_device->name);
882 pci_endpoint_test_release_irq(test);
888 ida_simple_remove(&pci_endpoint_test_ida, id);
891 for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) {
893 pci_iounmap(pdev, test->bar[bar]);
897 pci_endpoint_test_free_irq_vectors(test);
898 pci_release_regions(pdev);
901 pci_disable_device(pdev);
906 static void pci_endpoint_test_remove(struct pci_dev *pdev)
910 struct pci_endpoint_test *test = pci_get_drvdata(pdev);
911 struct miscdevice *misc_device = &test->miscdev;
913 if (sscanf(misc_device->name, DRV_MODULE_NAME ".%d", &id) != 1)
918 misc_deregister(&test->miscdev);
919 kfree(misc_device->name);
921 ida_simple_remove(&pci_endpoint_test_ida, id);
922 for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) {
924 pci_iounmap(pdev, test->bar[bar]);
927 pci_endpoint_test_release_irq(test);
928 pci_endpoint_test_free_irq_vectors(test);
930 pci_release_regions(pdev);
931 pci_disable_device(pdev);
934 static const struct pci_endpoint_test_data default_data = {
935 .test_reg_bar = BAR_0,
937 .irq_type = IRQ_TYPE_MSI,
940 static const struct pci_endpoint_test_data am654_data = {
941 .test_reg_bar = BAR_2,
943 .irq_type = IRQ_TYPE_MSI,
946 static const struct pci_endpoint_test_data j721e_data = {
948 .irq_type = IRQ_TYPE_MSI,
951 static const struct pci_device_id pci_endpoint_test_tbl[] = {
952 { PCI_DEVICE(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_DRA74x),
953 .driver_data = (kernel_ulong_t)&default_data,
955 { PCI_DEVICE(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_DRA72x),
956 .driver_data = (kernel_ulong_t)&default_data,
958 { PCI_DEVICE(PCI_VENDOR_ID_FREESCALE, 0x81c0),
959 .driver_data = (kernel_ulong_t)&default_data,
961 { PCI_DEVICE(PCI_VENDOR_ID_FREESCALE, PCI_DEVICE_ID_LS1088A),
962 .driver_data = (kernel_ulong_t)&default_data,
964 { PCI_DEVICE_DATA(SYNOPSYS, EDDA, NULL) },
965 { PCI_DEVICE(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_AM654),
966 .driver_data = (kernel_ulong_t)&am654_data
968 { PCI_DEVICE(PCI_VENDOR_ID_RENESAS, PCI_DEVICE_ID_RENESAS_R8A774A1),},
969 { PCI_DEVICE(PCI_VENDOR_ID_RENESAS, PCI_DEVICE_ID_RENESAS_R8A774B1),},
970 { PCI_DEVICE(PCI_VENDOR_ID_RENESAS, PCI_DEVICE_ID_RENESAS_R8A774C0),},
971 { PCI_DEVICE(PCI_VENDOR_ID_RENESAS, PCI_DEVICE_ID_RENESAS_R8A774E1),},
972 { PCI_DEVICE(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_J721E),
973 .driver_data = (kernel_ulong_t)&j721e_data,
975 { PCI_DEVICE(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_J7200),
976 .driver_data = (kernel_ulong_t)&j721e_data,
978 { PCI_DEVICE(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_AM64),
979 .driver_data = (kernel_ulong_t)&j721e_data,
983 MODULE_DEVICE_TABLE(pci, pci_endpoint_test_tbl);
985 static struct pci_driver pci_endpoint_test_driver = {
986 .name = DRV_MODULE_NAME,
987 .id_table = pci_endpoint_test_tbl,
988 .probe = pci_endpoint_test_probe,
989 .remove = pci_endpoint_test_remove,
990 .sriov_configure = pci_sriov_configure_simple,
992 module_pci_driver(pci_endpoint_test_driver);
994 MODULE_DESCRIPTION("PCI ENDPOINT TEST HOST DRIVER");
995 MODULE_AUTHOR("Kishon Vijay Abraham I <kishon@ti.com>");
996 MODULE_LICENSE("GPL v2");