Commit 801ca4ce authored by Alex Williamson's avatar Alex Williamson
Browse files

vfio/platform: Mark reset drivers for removal 

While vfio-platform itself is on a reprieve from being removed[1],
these reset drivers don't support any current hardware, are not being
tested, and suggest a level of support that doesn't really exist.
Mark them for removal to surface any remaining user such that we can
potentially drop them and simplify the code if none appear.

Link: https://lore.kernel.org/all/20250806170314.3768750-3-alex.williamson@redhat.com

 [1]
Reviewed-by: default avatarPranjal Shrivastava <praan@google.com>
Reviewed-by: default avatarMostafa Saleh <smostafa@google.com>
Reviewed-by: default avatarEric Auger <eric.auger@redhat.com>
Link: https://lore.kernel.org/r/20250825175807.3264083-3-alex.williamson@redhat.com


Signed-off-by: default avatarAlex Williamson <alex.williamson@redhat.com>
parent fd0f7530

drivers/vfio/platform/reset/Kconfig

+3 −3
Original line number Diff line number Diff line 
# SPDX-License-Identifier: GPL-2.0-only

if VFIO_PLATFORM

config VFIO_PLATFORM_CALXEDAXGMAC_RESET

	tristate "VFIO support for calxeda xgmac reset"

	tristate "VFIO support for calxeda xgmac reset (DEPRECATED)"

	help

	  Enables the VFIO platform driver to handle reset for Calxeda xgmac



	  If you don't know what to do here, say N.



config VFIO_PLATFORM_AMDXGBE_RESET

	tristate "VFIO support for AMD XGBE reset"

	tristate "VFIO support for AMD XGBE reset (DEPRECATED)"

	help

	  Enables the VFIO platform driver to handle reset for AMD XGBE



	  If you don't know what to do here, say N.



config VFIO_PLATFORM_BCMFLEXRM_RESET

	tristate "VFIO support for Broadcom FlexRM reset"

	tristate "VFIO support for Broadcom FlexRM reset (DEPRECATED)"

	depends on ARCH_BCM_IPROC || COMPILE_TEST

	default ARCH_BCM_IPROC

	help

drivers/vfio/platform/reset/vfio_platform_amdxgbe.c

+2 −0
Original line number Diff line number Diff line
@@ -52,6 +52,8 @@ static int vfio_platform_amdxgbe_reset(struct vfio_platform_device *vdev) 
	u32 dma_mr_value, pcs_value, value;

	unsigned int count;



	dev_err_once(vdev->device, "DEPRECATION: VFIO AMD XGBE platform reset is deprecated and will be removed in a future kernel release\n");



	if (!xgmac_regs->ioaddr) {

		xgmac_regs->ioaddr =

			ioremap(xgmac_regs->addr, xgmac_regs->size);

drivers/vfio/platform/reset/vfio_platform_bcmflexrm.c

+2 −0
Original line number Diff line number Diff line
@@ -72,6 +72,8 @@ static int vfio_platform_bcmflexrm_reset(struct vfio_platform_device *vdev) 
	int rc = 0, ret = 0, ring_num = 0;

	struct vfio_platform_region *reg = &vdev->regions[0];



	dev_err_once(vdev->device, "DEPRECATION: VFIO Broadcom FlexRM platform reset is deprecated and will be removed in a future kernel release\n");



	/* Map FlexRM ring registers if not mapped */

	if (!reg->ioaddr) {

		reg->ioaddr = ioremap(reg->addr, reg->size);

drivers/vfio/platform/reset/vfio_platform_calxedaxgmac.c

+2 −0
Original line number Diff line number Diff line
@@ -50,6 +50,8 @@ static int vfio_platform_calxedaxgmac_reset(struct vfio_platform_device *vdev) 
{

	struct vfio_platform_region *reg = &vdev->regions[0];



	dev_err_once(vdev->device, "DEPRECATION: VFIO Calxeda xgmac platform reset is deprecated and will be removed in a future kernel release\n");



	if (!reg->ioaddr) {

		reg->ioaddr =

			ioremap(reg->addr, reg->size);