vfio: platform: fix __iomem in vfio_platform_amdxgbe.c

The ioaddr should have __iomem marker on it, so add that to fix
the following sparse warnings:

drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:33:44: warning: incorrect type in argument 2 (different address spaces)
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:33:44: expected void volatile [noderef] <asn:2> *addr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:33:44: got void *
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:34:33: warning: incorrect type in argument 1 (different address spaces)
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:34:33: expected void const volatile [noderef] <asn:2> *addr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:34:33: got void *
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:44:44: warning: incorrect type in argument 2 (different address spaces)
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:44:44: expected void volatile [noderef] <asn:2> *addr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:44:44: got void *
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:45:33: warning: incorrect type in argument 2 (different address spaces)
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:45:33: expected void volatile [noderef] <asn:2> *addr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:45:33: got void *
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:69:41: warning: incorrect type in argument 1 (different address spaces)
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:69:41: expected void *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:69:41: got void [noderef] <asn:2> *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:71:30: warning: incorrect type in argument 1 (different address spaces)
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:71:30: expected void *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:71:30: got void [noderef] <asn:2> *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:76:49: warning: incorrect type in argument 1 (different address spaces)
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:76:49: expected void *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:76:49: got void [noderef] <asn:2> *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:85:37: warning: incorrect type in argument 1 (different address spaces)
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:85:37: expected void *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:85:37: got void [noderef] <asn:2> *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:87:30: warning: incorrect type in argument 1 (different address spaces)
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:87:30: expected void *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:87:30: got void [noderef] <asn:2> *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:90:30: warning: incorrect type in argument 1 (different address spaces)
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:90:30: expected void *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:90:30: got void [noderef] <asn:2> *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:93:30: warning: incorrect type in argument 1 (different address spaces)
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:93:30: expected void *ioaddr
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:93:30: got void [noderef] <asn:2> *ioaddr

Signed-off-by: Ben Dooks (Codethink) <ben.dooks@codethink.co.uk>
Acked-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

remove ioremap_nocache and devm_ioremap_nocache

ioremap has provided non-cached semantics by default since the Linux 2.6
days, so remove the additional ioremap_nocache interface.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201

Based on 1 normalized pattern(s):

this program is free software you can redistribute it and or modify
it under the terms and conditions of the gnu general public license
version 2 as published by the free software foundation this program
is distributed in the hope it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with this program if not see http www gnu org
licenses

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-only

has been chosen to replace the boilerplate/reference in 228 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190528171438.107155473@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

vfio: Use dev_printk() when possible

Use dev_printk() when possible to make messages consistent with other
device-related messages.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

vfio: platform: reset: fix up include directives to remove ccflags-y

For the include directive with double-quotes "", the preprocessor
searches the header in the relative path to the current file.

Fix them up, and remove the header search path option.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

vfio: platform: mark symbols static where possible

We get a few warnings when building kernel with W=1:
drivers/vfio/platform/vfio_platform_common.c:76:5: warning: no previous prototype for 'vfio_platform_acpi_call_reset' [-Wmissing-prototypes]
drivers/vfio/platform/vfio_platform_common.c:98:6: warning: no previous prototype for 'vfio_platform_acpi_has_reset' [-Wmissing-prototypes]
drivers/vfio/platform/vfio_platform_common.c:640:5: warning: no previous prototype for 'vfio_platform_of_probe' [-Wmissing-prototypes]
drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:59:5: warning: no previous prototype for 'vfio_platform_amdxgbe_reset' [-Wmissing-prototypes]
drivers/vfio/platform/reset/vfio_platform_calxedaxgmac.c:60:5: warning: no previous prototype for 'vfio_platform_calxedaxgmac_reset' [-Wmissing-prototypes]
....

In fact, these functions are only used in the file in which they are
declared and don't need a declaration, but can be made static.
so this patch marks these functions with 'static'.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Baptiste Reynal <b.reynal@virtualopensystems.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

VFIO: platform: reset: fix a warning message condition

This loop ends with count set to -1 and not zero so the warning message
isn't printed when it should be. I've fixed this by change the postop
to a preop.

Fixes: 0990822c9866 ('VFIO: platform: reset: AMD xgbe reset module')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Eric Auger <eric.auger@linaro.org>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

VFIO: platform: reset: AMD xgbe reset module

This patch introduces a module that registers and implements a low-level
reset function for the AMD XGBE device.

it performs the following actions:
- reset the PHY
- disable auto-negotiation
- disable & clear auto-negotiation IRQ
- soft-reset the MAC

Those tiny pieces of code are inherited from the native xgbe driver.

Signed-off-by: Eric Auger <eric.auger@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>