obj-$(CONFIG_CRYPTO_DEV_CCP_DD) += ccp.o
-ccp-objs := sp-dev.o ccp-platform.o
+ccp-objs := sp-dev.o sp-platform.o
ccp-$(CONFIG_CRYPTO_DEV_SP_CCP) += ccp-dev.o \
ccp-ops.o \
ccp-dev-v3.o \
ccp-dev-v5.o \
ccp-dmaengine.o \
ccp-debugfs.o
-ccp-$(CONFIG_PCI) += ccp-pci.o
+ccp-$(CONFIG_PCI) += sp-pci.o
obj-$(CONFIG_CRYPTO_DEV_CCP_CRYPTO) += ccp-crypto.o
ccp-crypto-objs := ccp-crypto-main.o \
struct dword7 dw7;
};
-int ccp_pci_init(void);
-void ccp_pci_exit(void);
-
-int ccp_platform_init(void);
-void ccp_platform_exit(void);
-
void ccp_add_device(struct ccp_device *ccp);
void ccp_del_device(struct ccp_device *ccp);
+++ /dev/null
-/*
- * AMD Cryptographic Coprocessor (CCP) driver
- *
- * Copyright (C) 2013,2016 Advanced Micro Devices, Inc.
- *
- * Author: Tom Lendacky <thomas.lendacky@amd.com>
- * Author: Gary R Hook <gary.hook@amd.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/device.h>
-#include <linux/pci.h>
-#include <linux/pci_ids.h>
-#include <linux/dma-mapping.h>
-#include <linux/kthread.h>
-#include <linux/sched.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-#include <linux/delay.h>
-#include <linux/ccp.h>
-
-#include "ccp-dev.h"
-
-#define MSIX_VECTORS 2
-
-struct ccp_pci {
- int msix_count;
- struct msix_entry msix_entry[MSIX_VECTORS];
-};
-
-static int ccp_get_msix_irqs(struct sp_device *sp)
-{
- struct ccp_pci *ccp_pci = sp->dev_specific;
- struct device *dev = sp->dev;
- struct pci_dev *pdev = to_pci_dev(dev);
- int v, ret;
-
- for (v = 0; v < ARRAY_SIZE(ccp_pci->msix_entry); v++)
- ccp_pci->msix_entry[v].entry = v;
-
- ret = pci_enable_msix_range(pdev, ccp_pci->msix_entry, 1, v);
- if (ret < 0)
- return ret;
-
- ccp_pci->msix_count = ret;
- sp->use_tasklet = true;
-
- sp->psp_irq = ccp_pci->msix_entry[0].vector;
- sp->ccp_irq = (ccp_pci->msix_count > 1) ? ccp_pci->msix_entry[1].vector
- : ccp_pci->msix_entry[0].vector;
- return 0;
-}
-
-static int ccp_get_msi_irq(struct sp_device *sp)
-{
- struct device *dev = sp->dev;
- struct pci_dev *pdev = to_pci_dev(dev);
- int ret;
-
- ret = pci_enable_msi(pdev);
- if (ret)
- return ret;
-
- sp->ccp_irq = pdev->irq;
- sp->psp_irq = pdev->irq;
-
- return 0;
-}
-
-static int ccp_get_irqs(struct sp_device *sp)
-{
- struct device *dev = sp->dev;
- int ret;
-
- ret = ccp_get_msix_irqs(sp);
- if (!ret)
- return 0;
-
- /* Couldn't get MSI-X vectors, try MSI */
- dev_notice(dev, "could not enable MSI-X (%d), trying MSI\n", ret);
- ret = ccp_get_msi_irq(sp);
- if (!ret)
- return 0;
-
- /* Couldn't get MSI interrupt */
- dev_notice(dev, "could not enable MSI (%d)\n", ret);
-
- return ret;
-}
-
-static void ccp_free_irqs(struct sp_device *sp)
-{
- struct ccp_pci *ccp_pci = sp->dev_specific;
- struct device *dev = sp->dev;
- struct pci_dev *pdev = to_pci_dev(dev);
-
- if (ccp_pci->msix_count)
- pci_disable_msix(pdev);
- else if (sp->psp_irq)
- pci_disable_msi(pdev);
-
- sp->ccp_irq = 0;
- sp->psp_irq = 0;
-}
-
-static int ccp_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
-{
- struct sp_device *sp;
- struct ccp_pci *ccp_pci;
- struct device *dev = &pdev->dev;
- void __iomem * const *iomap_table;
- int bar_mask;
- int ret;
-
- ret = -ENOMEM;
- sp = sp_alloc_struct(dev);
- if (!sp)
- goto e_err;
-
- ccp_pci = devm_kzalloc(dev, sizeof(*ccp_pci), GFP_KERNEL);
- if (!ccp_pci)
- goto e_err;
-
- sp->dev_specific = ccp_pci;
- sp->dev_vdata = (struct sp_dev_vdata *)id->driver_data;
- if (!sp->dev_vdata) {
- ret = -ENODEV;
- dev_err(dev, "missing driver data\n");
- goto e_err;
- }
-
- ret = pcim_enable_device(pdev);
- if (ret) {
- dev_err(dev, "pcim_enable_device failed (%d)\n", ret);
- goto e_err;
- }
-
- bar_mask = pci_select_bars(pdev, IORESOURCE_MEM);
- ret = pcim_iomap_regions(pdev, bar_mask, "ccp");
- if (ret) {
- dev_err(dev, "pcim_iomap_regions failed (%d)\n", ret);
- goto e_err;
- }
-
- iomap_table = pcim_iomap_table(pdev);
- if (!iomap_table) {
- dev_err(dev, "pcim_iomap_table failed\n");
- ret = -ENOMEM;
- goto e_err;
- }
-
- sp->io_map = iomap_table[sp->dev_vdata->bar];
- if (!sp->io_map) {
- dev_err(dev, "ioremap failed\n");
- ret = -ENOMEM;
- goto e_err;
- }
-
- ret = ccp_get_irqs(sp);
- if (ret)
- goto e_err;
-
- pci_set_master(pdev);
-
- ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(48));
- if (ret) {
- ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
- if (ret) {
- dev_err(dev, "dma_set_mask_and_coherent failed (%d)\n",
- ret);
- goto e_err;
- }
- }
-
- dev_set_drvdata(dev, sp);
-
- ret = sp_init(sp);
- if (ret)
- goto e_err;
-
- dev_notice(dev, "enabled\n");
-
- return 0;
-
-e_err:
- dev_notice(dev, "initialization failed\n");
- return ret;
-}
-
-static void ccp_pci_remove(struct pci_dev *pdev)
-{
- struct device *dev = &pdev->dev;
- struct sp_device *sp = dev_get_drvdata(dev);
-
- if (!sp)
- return;
-
- sp_destroy(sp);
-
- ccp_free_irqs(sp);
-
- dev_notice(dev, "disabled\n");
-}
-
-#ifdef CONFIG_PM
-static int ccp_pci_suspend(struct pci_dev *pdev, pm_message_t state)
-{
- struct device *dev = &pdev->dev;
- struct sp_device *sp = dev_get_drvdata(dev);
-
- return sp_suspend(sp, state);
-}
-
-static int ccp_pci_resume(struct pci_dev *pdev)
-{
- struct device *dev = &pdev->dev;
- struct sp_device *sp = dev_get_drvdata(dev);
-
- return sp_resume(sp);
-}
-#endif
-
-static const struct sp_dev_vdata dev_vdata[] = {
- {
- .bar = 2,
-#ifdef CONFIG_CRYPTO_DEV_SP_CCP
- .ccp_vdata = &ccpv3,
-#endif
- },
- {
- .bar = 2,
-#ifdef CONFIG_CRYPTO_DEV_SP_CCP
- .ccp_vdata = &ccpv5a,
-#endif
- },
- {
- .bar = 2,
-#ifdef CONFIG_CRYPTO_DEV_SP_CCP
- .ccp_vdata = &ccpv5b,
-#endif
- },
-};
-static const struct pci_device_id ccp_pci_table[] = {
- { PCI_VDEVICE(AMD, 0x1537), (kernel_ulong_t)&dev_vdata[0] },
- { PCI_VDEVICE(AMD, 0x1456), (kernel_ulong_t)&dev_vdata[1] },
- { PCI_VDEVICE(AMD, 0x1468), (kernel_ulong_t)&dev_vdata[2] },
- /* Last entry must be zero */
- { 0, }
-};
-MODULE_DEVICE_TABLE(pci, ccp_pci_table);
-
-static struct pci_driver ccp_pci_driver = {
- .name = "ccp",
- .id_table = ccp_pci_table,
- .probe = ccp_pci_probe,
- .remove = ccp_pci_remove,
-#ifdef CONFIG_PM
- .suspend = ccp_pci_suspend,
- .resume = ccp_pci_resume,
-#endif
-};
-
-int ccp_pci_init(void)
-{
- return pci_register_driver(&ccp_pci_driver);
-}
-
-void ccp_pci_exit(void)
-{
- pci_unregister_driver(&ccp_pci_driver);
-}
+++ /dev/null
-/*
- * AMD Cryptographic Coprocessor (CCP) driver
- *
- * Copyright (C) 2014,2016 Advanced Micro Devices, Inc.
- *
- * Author: Tom Lendacky <thomas.lendacky@amd.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/device.h>
-#include <linux/platform_device.h>
-#include <linux/ioport.h>
-#include <linux/dma-mapping.h>
-#include <linux/kthread.h>
-#include <linux/sched.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-#include <linux/delay.h>
-#include <linux/ccp.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/acpi.h>
-
-#include "ccp-dev.h"
-
-struct ccp_platform {
- int coherent;
- unsigned int irq_count;
-};
-
-static const struct acpi_device_id ccp_acpi_match[];
-static const struct of_device_id ccp_of_match[];
-
-static struct sp_dev_vdata *ccp_get_of_version(struct platform_device *pdev)
-{
-#ifdef CONFIG_OF
- const struct of_device_id *match;
-
- match = of_match_node(ccp_of_match, pdev->dev.of_node);
- if (match && match->data)
- return (struct sp_dev_vdata *)match->data;
-#endif
- return NULL;
-}
-
-static struct sp_dev_vdata *ccp_get_acpi_version(struct platform_device *pdev)
-{
-#ifdef CONFIG_ACPI
- const struct acpi_device_id *match;
-
- match = acpi_match_device(ccp_acpi_match, &pdev->dev);
- if (match && match->driver_data)
- return (struct sp_dev_vdata *)match->driver_data;
-#endif
- return NULL;
-}
-
-static int ccp_get_irqs(struct sp_device *sp)
-{
- struct ccp_platform *ccp_platform = sp->dev_specific;
- struct device *dev = sp->dev;
- struct platform_device *pdev = to_platform_device(dev);
- unsigned int i, count;
- int ret;
-
- for (i = 0, count = 0; i < pdev->num_resources; i++) {
- struct resource *res = &pdev->resource[i];
-
- if (resource_type(res) == IORESOURCE_IRQ)
- count++;
- }
-
- ccp_platform->irq_count = count;
-
- ret = platform_get_irq(pdev, 0);
- if (ret < 0) {
- dev_notice(dev, "unable to get IRQ (%d)\n", ret);
- return ret;
- }
-
- sp->psp_irq = ret;
- if (count == 1) {
- sp->ccp_irq = ret;
- } else {
- ret = platform_get_irq(pdev, 1);
- if (ret < 0) {
- dev_notice(dev, "unable to get IRQ (%d)\n", ret);
- return ret;
- }
-
- sp->ccp_irq = ret;
- }
-
- return 0;
-}
-
-static int ccp_platform_probe(struct platform_device *pdev)
-{
- struct sp_device *sp;
- struct ccp_platform *ccp_platform;
- struct device *dev = &pdev->dev;
- enum dev_dma_attr attr;
- struct resource *ior;
- int ret;
-
- ret = -ENOMEM;
- sp = sp_alloc_struct(dev);
- if (!sp)
- goto e_err;
-
- ccp_platform = devm_kzalloc(dev, sizeof(*ccp_platform), GFP_KERNEL);
- if (!ccp_platform)
- goto e_err;
-
- sp->dev_specific = ccp_platform;
- sp->dev_vdata = pdev->dev.of_node ? ccp_get_of_version(pdev)
- : ccp_get_acpi_version(pdev);
- if (!sp->dev_vdata) {
- ret = -ENODEV;
- dev_err(dev, "missing driver data\n");
- goto e_err;
- }
-
- ior = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- sp->io_map = devm_ioremap_resource(dev, ior);
- if (IS_ERR(sp->io_map)) {
- ret = PTR_ERR(sp->io_map);
- goto e_err;
- }
-
- attr = device_get_dma_attr(dev);
- if (attr == DEV_DMA_NOT_SUPPORTED) {
- dev_err(dev, "DMA is not supported");
- goto e_err;
- }
-
- ccp_platform->coherent = (attr == DEV_DMA_COHERENT);
- if (ccp_platform->coherent)
- sp->axcache = CACHE_WB_NO_ALLOC;
- else
- sp->axcache = CACHE_NONE;
-
- ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(48));
- if (ret) {
- dev_err(dev, "dma_set_mask_and_coherent failed (%d)\n", ret);
- goto e_err;
- }
-
- ret = ccp_get_irqs(sp);
- if (ret)
- goto e_err;
-
- dev_set_drvdata(dev, sp);
-
- ret = sp_init(sp);
- if (ret)
- goto e_err;
-
- dev_notice(dev, "enabled\n");
-
- return 0;
-
-e_err:
- dev_notice(dev, "initialization failed\n");
- return ret;
-}
-
-static int ccp_platform_remove(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct sp_device *sp = dev_get_drvdata(dev);
-
- sp_destroy(sp);
-
- dev_notice(dev, "disabled\n");
-
- return 0;
-}
-
-#ifdef CONFIG_PM
-static int ccp_platform_suspend(struct platform_device *pdev,
- pm_message_t state)
-{
- struct device *dev = &pdev->dev;
- struct sp_device *sp = dev_get_drvdata(dev);
-
- return sp_suspend(sp, state);
-}
-
-static int ccp_platform_resume(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct sp_device *sp = dev_get_drvdata(dev);
-
- return sp_resume(sp);
-}
-#endif
-
-static const struct sp_dev_vdata dev_vdata[] = {
- {
- .bar = 0,
-#ifdef CONFIG_CRYPTO_DEV_SP_CCP
- .ccp_vdata = &ccpv3_platform,
-#endif
- },
-};
-
-#ifdef CONFIG_ACPI
-static const struct acpi_device_id ccp_acpi_match[] = {
- { "AMDI0C00", (kernel_ulong_t)&dev_vdata[0] },
- { },
-};
-MODULE_DEVICE_TABLE(acpi, ccp_acpi_match);
-#endif
-
-#ifdef CONFIG_OF
-static const struct of_device_id ccp_of_match[] = {
- { .compatible = "amd,ccp-seattle-v1a",
- .data = (const void *)&dev_vdata[0] },
- { },
-};
-MODULE_DEVICE_TABLE(of, ccp_of_match);
-#endif
-
-static struct platform_driver ccp_platform_driver = {
- .driver = {
- .name = "ccp",
-#ifdef CONFIG_ACPI
- .acpi_match_table = ccp_acpi_match,
-#endif
-#ifdef CONFIG_OF
- .of_match_table = ccp_of_match,
-#endif
- },
- .probe = ccp_platform_probe,
- .remove = ccp_platform_remove,
-#ifdef CONFIG_PM
- .suspend = ccp_platform_suspend,
- .resume = ccp_platform_resume,
-#endif
-};
-
-int ccp_platform_init(void)
-{
- return platform_driver_register(&ccp_platform_driver);
-}
-
-void ccp_platform_exit(void)
-{
- platform_driver_unregister(&ccp_platform_driver);
-}
#ifdef CONFIG_X86
int ret;
- ret = ccp_pci_init();
+ ret = sp_pci_init();
if (ret)
return ret;
/* Don't leave the driver loaded if init failed */
if (ccp_present() != 0) {
- ccp_pci_exit();
+ sp_pci_exit();
return -ENODEV;
}
#ifdef CONFIG_ARM64
int ret;
- ret = ccp_platform_init();
+ ret = sp_platform_init();
if (ret)
return ret;
/* Don't leave the driver loaded if init failed */
if (ccp_present() != 0) {
- ccp_platform_exit();
+ sp_platform_exit();
return -ENODEV;
}
static void __exit sp_mod_exit(void)
{
#ifdef CONFIG_X86
- ccp_pci_exit();
+ sp_pci_exit();
#endif
#ifdef CONFIG_ARM64
- ccp_platform_exit();
+ sp_platform_exit();
#endif
}
--- /dev/null
+/*
+ * AMD Secure Processor device driver
+ *
+ * Copyright (C) 2013,2016 Advanced Micro Devices, Inc.
+ *
+ * Author: Tom Lendacky <thomas.lendacky@amd.com>
+ * Author: Gary R Hook <gary.hook@amd.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/pci.h>
+#include <linux/pci_ids.h>
+#include <linux/dma-mapping.h>
+#include <linux/kthread.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/delay.h>
+#include <linux/ccp.h>
+
+#include "ccp-dev.h"
+
+#define MSIX_VECTORS 2
+
+struct sp_pci {
+ int msix_count;
+ struct msix_entry msix_entry[MSIX_VECTORS];
+};
+
+static int sp_get_msix_irqs(struct sp_device *sp)
+{
+ struct sp_pci *sp_pci = sp->dev_specific;
+ struct device *dev = sp->dev;
+ struct pci_dev *pdev = to_pci_dev(dev);
+ int v, ret;
+
+ for (v = 0; v < ARRAY_SIZE(sp_pci->msix_entry); v++)
+ sp_pci->msix_entry[v].entry = v;
+
+ ret = pci_enable_msix_range(pdev, sp_pci->msix_entry, 1, v);
+ if (ret < 0)
+ return ret;
+
+ sp_pci->msix_count = ret;
+ sp->use_tasklet = true;
+
+ sp->psp_irq = sp_pci->msix_entry[0].vector;
+ sp->ccp_irq = (sp_pci->msix_count > 1) ? sp_pci->msix_entry[1].vector
+ : sp_pci->msix_entry[0].vector;
+ return 0;
+}
+
+static int sp_get_msi_irq(struct sp_device *sp)
+{
+ struct device *dev = sp->dev;
+ struct pci_dev *pdev = to_pci_dev(dev);
+ int ret;
+
+ ret = pci_enable_msi(pdev);
+ if (ret)
+ return ret;
+
+ sp->ccp_irq = pdev->irq;
+ sp->psp_irq = pdev->irq;
+
+ return 0;
+}
+
+static int sp_get_irqs(struct sp_device *sp)
+{
+ struct device *dev = sp->dev;
+ int ret;
+
+ ret = sp_get_msix_irqs(sp);
+ if (!ret)
+ return 0;
+
+ /* Couldn't get MSI-X vectors, try MSI */
+ dev_notice(dev, "could not enable MSI-X (%d), trying MSI\n", ret);
+ ret = sp_get_msi_irq(sp);
+ if (!ret)
+ return 0;
+
+ /* Couldn't get MSI interrupt */
+ dev_notice(dev, "could not enable MSI (%d)\n", ret);
+
+ return ret;
+}
+
+static void sp_free_irqs(struct sp_device *sp)
+{
+ struct sp_pci *sp_pci = sp->dev_specific;
+ struct device *dev = sp->dev;
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ if (sp_pci->msix_count)
+ pci_disable_msix(pdev);
+ else if (sp->psp_irq)
+ pci_disable_msi(pdev);
+
+ sp->ccp_irq = 0;
+ sp->psp_irq = 0;
+}
+
+static int sp_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ struct sp_device *sp;
+ struct sp_pci *sp_pci;
+ struct device *dev = &pdev->dev;
+ void __iomem * const *iomap_table;
+ int bar_mask;
+ int ret;
+
+ ret = -ENOMEM;
+ sp = sp_alloc_struct(dev);
+ if (!sp)
+ goto e_err;
+
+ sp_pci = devm_kzalloc(dev, sizeof(*sp_pci), GFP_KERNEL);
+ if (!sp_pci)
+ goto e_err;
+
+ sp->dev_specific = sp_pci;
+ sp->dev_vdata = (struct sp_dev_vdata *)id->driver_data;
+ if (!sp->dev_vdata) {
+ ret = -ENODEV;
+ dev_err(dev, "missing driver data\n");
+ goto e_err;
+ }
+
+ ret = pcim_enable_device(pdev);
+ if (ret) {
+ dev_err(dev, "pcim_enable_device failed (%d)\n", ret);
+ goto e_err;
+ }
+
+ bar_mask = pci_select_bars(pdev, IORESOURCE_MEM);
+ ret = pcim_iomap_regions(pdev, bar_mask, "ccp");
+ if (ret) {
+ dev_err(dev, "pcim_iomap_regions failed (%d)\n", ret);
+ goto e_err;
+ }
+
+ iomap_table = pcim_iomap_table(pdev);
+ if (!iomap_table) {
+ dev_err(dev, "pcim_iomap_table failed\n");
+ ret = -ENOMEM;
+ goto e_err;
+ }
+
+ sp->io_map = iomap_table[sp->dev_vdata->bar];
+ if (!sp->io_map) {
+ dev_err(dev, "ioremap failed\n");
+ ret = -ENOMEM;
+ goto e_err;
+ }
+
+ ret = sp_get_irqs(sp);
+ if (ret)
+ goto e_err;
+
+ pci_set_master(pdev);
+
+ ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(48));
+ if (ret) {
+ ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
+ if (ret) {
+ dev_err(dev, "dma_set_mask_and_coherent failed (%d)\n",
+ ret);
+ goto e_err;
+ }
+ }
+
+ dev_set_drvdata(dev, sp);
+
+ ret = sp_init(sp);
+ if (ret)
+ goto e_err;
+
+ dev_notice(dev, "enabled\n");
+
+ return 0;
+
+e_err:
+ dev_notice(dev, "initialization failed\n");
+ return ret;
+}
+
+static void sp_pci_remove(struct pci_dev *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct sp_device *sp = dev_get_drvdata(dev);
+
+ if (!sp)
+ return;
+
+ sp_destroy(sp);
+
+ sp_free_irqs(sp);
+
+ dev_notice(dev, "disabled\n");
+}
+
+#ifdef CONFIG_PM
+static int sp_pci_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct device *dev = &pdev->dev;
+ struct sp_device *sp = dev_get_drvdata(dev);
+
+ return sp_suspend(sp, state);
+}
+
+static int sp_pci_resume(struct pci_dev *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct sp_device *sp = dev_get_drvdata(dev);
+
+ return sp_resume(sp);
+}
+#endif
+
+static const struct sp_dev_vdata dev_vdata[] = {
+ {
+ .bar = 2,
+#ifdef CONFIG_CRYPTO_DEV_SP_CCP
+ .ccp_vdata = &ccpv3,
+#endif
+ },
+ {
+ .bar = 2,
+#ifdef CONFIG_CRYPTO_DEV_SP_CCP
+ .ccp_vdata = &ccpv5a,
+#endif
+ },
+ {
+ .bar = 2,
+#ifdef CONFIG_CRYPTO_DEV_SP_CCP
+ .ccp_vdata = &ccpv5b,
+#endif
+ },
+};
+static const struct pci_device_id sp_pci_table[] = {
+ { PCI_VDEVICE(AMD, 0x1537), (kernel_ulong_t)&dev_vdata[0] },
+ { PCI_VDEVICE(AMD, 0x1456), (kernel_ulong_t)&dev_vdata[1] },
+ { PCI_VDEVICE(AMD, 0x1468), (kernel_ulong_t)&dev_vdata[2] },
+ /* Last entry must be zero */
+ { 0, }
+};
+MODULE_DEVICE_TABLE(pci, sp_pci_table);
+
+static struct pci_driver sp_pci_driver = {
+ .name = "ccp",
+ .id_table = sp_pci_table,
+ .probe = sp_pci_probe,
+ .remove = sp_pci_remove,
+#ifdef CONFIG_PM
+ .suspend = sp_pci_suspend,
+ .resume = sp_pci_resume,
+#endif
+};
+
+int sp_pci_init(void)
+{
+ return pci_register_driver(&sp_pci_driver);
+}
+
+void sp_pci_exit(void)
+{
+ pci_unregister_driver(&sp_pci_driver);
+}
--- /dev/null
+/*
+ * AMD Secure Processor device driver
+ *
+ * Copyright (C) 2014,2016 Advanced Micro Devices, Inc.
+ *
+ * Author: Tom Lendacky <thomas.lendacky@amd.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/ioport.h>
+#include <linux/dma-mapping.h>
+#include <linux/kthread.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/delay.h>
+#include <linux/ccp.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/acpi.h>
+
+#include "ccp-dev.h"
+
+struct sp_platform {
+ int coherent;
+ unsigned int irq_count;
+};
+
+static const struct acpi_device_id sp_acpi_match[];
+static const struct of_device_id sp_of_match[];
+
+static struct sp_dev_vdata *sp_get_of_version(struct platform_device *pdev)
+{
+#ifdef CONFIG_OF
+ const struct of_device_id *match;
+
+ match = of_match_node(sp_of_match, pdev->dev.of_node);
+ if (match && match->data)
+ return (struct sp_dev_vdata *)match->data;
+#endif
+ return NULL;
+}
+
+static struct sp_dev_vdata *sp_get_acpi_version(struct platform_device *pdev)
+{
+#ifdef CONFIG_ACPI
+ const struct acpi_device_id *match;
+
+ match = acpi_match_device(sp_acpi_match, &pdev->dev);
+ if (match && match->driver_data)
+ return (struct sp_dev_vdata *)match->driver_data;
+#endif
+ return NULL;
+}
+
+static int sp_get_irqs(struct sp_device *sp)
+{
+ struct sp_platform *sp_platform = sp->dev_specific;
+ struct device *dev = sp->dev;
+ struct platform_device *pdev = to_platform_device(dev);
+ unsigned int i, count;
+ int ret;
+
+ for (i = 0, count = 0; i < pdev->num_resources; i++) {
+ struct resource *res = &pdev->resource[i];
+
+ if (resource_type(res) == IORESOURCE_IRQ)
+ count++;
+ }
+
+ sp_platform->irq_count = count;
+
+ ret = platform_get_irq(pdev, 0);
+ if (ret < 0) {
+ dev_notice(dev, "unable to get IRQ (%d)\n", ret);
+ return ret;
+ }
+
+ sp->psp_irq = ret;
+ if (count == 1) {
+ sp->ccp_irq = ret;
+ } else {
+ ret = platform_get_irq(pdev, 1);
+ if (ret < 0) {
+ dev_notice(dev, "unable to get IRQ (%d)\n", ret);
+ return ret;
+ }
+
+ sp->ccp_irq = ret;
+ }
+
+ return 0;
+}
+
+static int sp_platform_probe(struct platform_device *pdev)
+{
+ struct sp_device *sp;
+ struct sp_platform *sp_platform;
+ struct device *dev = &pdev->dev;
+ enum dev_dma_attr attr;
+ struct resource *ior;
+ int ret;
+
+ ret = -ENOMEM;
+ sp = sp_alloc_struct(dev);
+ if (!sp)
+ goto e_err;
+
+ sp_platform = devm_kzalloc(dev, sizeof(*sp_platform), GFP_KERNEL);
+ if (!sp_platform)
+ goto e_err;
+
+ sp->dev_specific = sp_platform;
+ sp->dev_vdata = pdev->dev.of_node ? sp_get_of_version(pdev)
+ : sp_get_acpi_version(pdev);
+ if (!sp->dev_vdata) {
+ ret = -ENODEV;
+ dev_err(dev, "missing driver data\n");
+ goto e_err;
+ }
+
+ ior = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ sp->io_map = devm_ioremap_resource(dev, ior);
+ if (IS_ERR(sp->io_map)) {
+ ret = PTR_ERR(sp->io_map);
+ goto e_err;
+ }
+
+ attr = device_get_dma_attr(dev);
+ if (attr == DEV_DMA_NOT_SUPPORTED) {
+ dev_err(dev, "DMA is not supported");
+ goto e_err;
+ }
+
+ sp_platform->coherent = (attr == DEV_DMA_COHERENT);
+ if (sp_platform->coherent)
+ sp->axcache = CACHE_WB_NO_ALLOC;
+ else
+ sp->axcache = CACHE_NONE;
+
+ ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(48));
+ if (ret) {
+ dev_err(dev, "dma_set_mask_and_coherent failed (%d)\n", ret);
+ goto e_err;
+ }
+
+ ret = sp_get_irqs(sp);
+ if (ret)
+ goto e_err;
+
+ dev_set_drvdata(dev, sp);
+
+ ret = sp_init(sp);
+ if (ret)
+ goto e_err;
+
+ dev_notice(dev, "enabled\n");
+
+ return 0;
+
+e_err:
+ dev_notice(dev, "initialization failed\n");
+ return ret;
+}
+
+static int sp_platform_remove(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct sp_device *sp = dev_get_drvdata(dev);
+
+ sp_destroy(sp);
+
+ dev_notice(dev, "disabled\n");
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int sp_platform_suspend(struct platform_device *pdev,
+ pm_message_t state)
+{
+ struct device *dev = &pdev->dev;
+ struct sp_device *sp = dev_get_drvdata(dev);
+
+ return sp_suspend(sp, state);
+}
+
+static int sp_platform_resume(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct sp_device *sp = dev_get_drvdata(dev);
+
+ return sp_resume(sp);
+}
+#endif
+
+static const struct sp_dev_vdata dev_vdata[] = {
+ {
+ .bar = 0,
+#ifdef CONFIG_CRYPTO_DEV_SP_CCP
+ .ccp_vdata = &ccpv3_platform,
+#endif
+ },
+};
+
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id sp_acpi_match[] = {
+ { "AMDI0C00", (kernel_ulong_t)&dev_vdata[0] },
+ { },
+};
+MODULE_DEVICE_TABLE(acpi, sp_acpi_match);
+#endif
+
+#ifdef CONFIG_OF
+static const struct of_device_id sp_of_match[] = {
+ { .compatible = "amd,ccp-seattle-v1a",
+ .data = (const void *)&dev_vdata[0] },
+ { },
+};
+MODULE_DEVICE_TABLE(of, sp_of_match);
+#endif
+
+static struct platform_driver sp_platform_driver = {
+ .driver = {
+ .name = "ccp",
+#ifdef CONFIG_ACPI
+ .acpi_match_table = sp_acpi_match,
+#endif
+#ifdef CONFIG_OF
+ .of_match_table = sp_of_match,
+#endif
+ },
+ .probe = sp_platform_probe,
+ .remove = sp_platform_remove,
+#ifdef CONFIG_PM
+ .suspend = sp_platform_suspend,
+ .resume = sp_platform_resume,
+#endif
+};
+
+int sp_platform_init(void)
+{
+ return platform_driver_register(&sp_platform_driver);
+}
+
+void sp_platform_exit(void)
+{
+ platform_driver_unregister(&sp_platform_driver);
+}
projects / mirror_ubuntu-hirsute-kernel.git / commitdiff