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misc: Add host side PCI driver for PCI test function device

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Add PCI endpoint test driver that can verify base address register, legacy
interrupt/MSI interrupt and read/write/copy buffers between host and
device. The corresponding pci-epf-test function driver should be used on
the EP side.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Kishon Vijay Abraham I
2017-03-27 15:15:14 +05:30
committed by Bjorn Helgaas
parent 984c307878
commit 2c156ac71c
5 changed files with 562 additions and 0 deletions
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7
drivers/misc/Kconfig
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@@ -771,6 +771,13 @@ config PANEL_BOOT_MESSAGE
endif # PANEL
config PCI_ENDPOINT_TEST
depends on PCI
tristate "PCI Endpoint Test driver"
---help---
Enable this configuration option to enable the host side test driver
for PCI Endpoint.
source "drivers/misc/c2port/Kconfig"
source "drivers/misc/eeprom/Kconfig"
source "drivers/misc/cb710/Kconfig"

1
drivers/misc/Makefile
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@@ -54,6 +54,7 @@ obj-$(CONFIG_ECHO) += echo/
obj-$(CONFIG_VEXPRESS_SYSCFG) += vexpress-syscfg.o
obj-$(CONFIG_CXL_BASE) += cxl/
obj-$(CONFIG_PANEL) += panel.o
obj-$(CONFIG_PCI_ENDPOINT_TEST) += pci_endpoint_test.o
lkdtm-$(CONFIG_LKDTM) += lkdtm_core.o
lkdtm-$(CONFIG_LKDTM) += lkdtm_bugs.o

534
drivers/misc/pci_endpoint_test.c Normal file
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File diff suppressed because it is too large Load Diff

1
include/uapi/linux/Kbuild
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@@ -333,6 +333,7 @@ header-y += parport.h
header-y += patchkey.h
header-y += pci.h
header-y += pci_regs.h
header-y += pcitest.h
header-y += perf_event.h
header-y += personality.h
header-y += pfkeyv2.h

19
include/uapi/linux/pcitest.h Normal file
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@@ -0,0 +1,19 @@
/**
* pcitest.h - PCI test uapi defines
*
* Copyright (C) 2017 Texas Instruments
* Author: Kishon Vijay Abraham I <kishon@ti.com>
*
*/
#ifndef __UAPI_LINUX_PCITEST_H
#define __UAPI_LINUX_PCITEST_H
#define PCITEST_BAR _IO('P', 0x1)
#define PCITEST_LEGACY_IRQ _IO('P', 0x2)
#define PCITEST_MSI _IOW('P', 0x3, int)
#define PCITEST_WRITE _IOW('P', 0x4, unsigned long)
#define PCITEST_READ _IOW('P', 0x5, unsigned long)
#define PCITEST_COPY _IOW('P', 0x6, unsigned long)
#endif /* __UAPI_LINUX_PCITEST_H */