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vgaarb: remove the unused irq_set_state argument to vga_client_register

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All callers pass NULL as the irq_set_state argument, so remove it and
the ->irq_set_state member in struct vga_device.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210716061634.2446357-7-hch@lst.de
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Christoph Hellwig 2021-07-16 08:16:33 +02:00 committed by Christian König
parent b877947586
commit f6b1772b25
7 changed files with 7 additions and 30 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View File

@ -3679,7 +3679,7 @@ fence_driver_init:
/* this will fail for cards that aren't VGA class devices, just
* ignore it */
if ((adev->pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA)
vga_client_register(adev->pdev, adev, NULL, amdgpu_device_vga_set_decode);
vga_client_register(adev->pdev, adev, amdgpu_device_vga_set_decode);
if (amdgpu_device_supports_px(ddev)) {
px = true;

2
drivers/gpu/drm/i915/display/intel_vga.c
View File

@ -147,7 +147,7 @@ int intel_vga_register(struct drm_i915_private *i915)
* then we do not take part in VGA arbitration and the
* vga_client_register() fails with -ENODEV.
*/
ret = vga_client_register(pdev, i915, NULL, intel_vga_set_decode);
ret = vga_client_register(pdev, i915, intel_vga_set_decode);
if (ret && ret != -ENODEV)
return ret;

2
drivers/gpu/drm/nouveau/nouveau_vga.c
View File

@ -94,7 +94,7 @@ nouveau_vga_init(struct nouveau_drm *drm)
return;
pdev = to_pci_dev(dev->dev);
vga_client_register(pdev, dev, NULL, nouveau_vga_set_decode);
vga_client_register(pdev, dev, nouveau_vga_set_decode);
/* don't register Thunderbolt eGPU with vga_switcheroo */
if (pci_is_thunderbolt_attached(pdev))

2
drivers/gpu/drm/radeon/radeon_device.c
View File

@ -1434,7 +1434,7 @@ int radeon_device_init(struct radeon_device *rdev,
/* if we have > 1 VGA cards, then disable the radeon VGA resources */
/* this will fail for cards that aren't VGA class devices, just
* ignore it */
vga_client_register(rdev->pdev, rdev, NULL, radeon_vga_set_decode);
vga_client_register(rdev->pdev, rdev, radeon_vga_set_decode);
if (rdev->flags & RADEON_IS_PX)
runtime = true;

23
drivers/gpu/vga/vgaarb.c
View File

@ -72,9 +72,7 @@ struct vga_device {
unsigned int io_norm_cnt; /* normal IO count */
unsigned int mem_norm_cnt; /* normal MEM count */
bool bridge_has_one_vga;
/* allow IRQ enable/disable hook */
void *cookie;
void (*irq_set_state)(void *cookie, bool enable);
unsigned int (*set_vga_decode)(void *cookie, bool decode);
};
@ -218,13 +216,6 @@ int vga_remove_vgacon(struct pci_dev *pdev)
#endif
EXPORT_SYMBOL(vga_remove_vgacon);
static inline void vga_irq_set_state(struct vga_device *vgadev, bool state)
{
if (vgadev->irq_set_state)
vgadev->irq_set_state(vgadev->cookie, state);
}
/* If we don't ever use VGA arb we should avoid
turning off anything anywhere due to old X servers getting
confused about the boot device not being VGA */
@ -325,10 +316,8 @@ static struct vga_device *__vga_tryget(struct vga_device *vgadev,
if ((match & conflict->decodes) & VGA_RSRC_LEGACY_IO)
pci_bits |= PCI_COMMAND_IO;
if (pci_bits) {
vga_irq_set_state(conflict, false);
if (pci_bits)
flags |= PCI_VGA_STATE_CHANGE_DECODES;
}
}
if (change_bridge)
@ -365,9 +354,6 @@ enable_them:
pci_set_vga_state(vgadev->pdev, true, pci_bits, flags);
if (!vgadev->bridge_has_one_vga)
vga_irq_set_state(vgadev, true);
vgadev->owns |= wants;
lock_them:
vgadev->locks |= (rsrc & VGA_RSRC_LEGACY_MASK);
@ -855,15 +841,10 @@ EXPORT_SYMBOL(vga_set_legacy_decoding);
* vga_client_register - register or unregister a VGA arbitration client
* @pdev: pci device of the VGA client
* @cookie: client cookie to be used in callbacks
* @irq_set_state: irq state change callback
* @set_vga_decode: vga decode change callback
*
* Clients have two callback mechanisms they can use.
*
* @irq_set_state callback: If a client can't disable its GPUs VGA
* resources, then we need to be able to ask it to turn off its irqs when we
* turn off its mem and io decoding.
*
* @set_vga_decode callback: If a client can disable its GPU VGA resource, it
* will get a callback from this to set the encode/decode state.
*
@ -882,7 +863,6 @@ EXPORT_SYMBOL(vga_set_legacy_decoding);
* Returns: 0 on success, -1 on failure
*/
int vga_client_register(struct pci_dev *pdev, void *cookie,
void (*irq_set_state)(void *cookie, bool state),
unsigned int (*set_vga_decode)(void *cookie,
bool decode))
{
@ -895,7 +875,6 @@ int vga_client_register(struct pci_dev *pdev, void *cookie,
if (!vgadev)
goto bail;
vgadev->irq_set_state = irq_set_state;
vgadev->set_vga_decode = set_vga_decode;
vgadev->cookie = cookie;
ret = 0;

2
drivers/vfio/pci/vfio_pci.c
View File

@ -1951,7 +1951,7 @@ static int vfio_pci_vga_init(struct vfio_pci_device *vdev)
if (!vfio_pci_is_vga(pdev))
return 0;
ret = vga_client_register(pdev, vdev, NULL, vfio_pci_set_vga_decode);
ret = vga_client_register(pdev, vdev, vfio_pci_set_vga_decode);
if (ret)
return ret;
vga_set_legacy_decoding(pdev, vfio_pci_set_vga_decode(vdev, false));

4
include/linux/vgaarb.h
View File

@ -52,7 +52,6 @@ struct pci_dev *vga_default_device(void);
void vga_set_default_device(struct pci_dev *pdev);
int vga_remove_vgacon(struct pci_dev *pdev);
int vga_client_register(struct pci_dev *pdev, void *cookie,
void (*irq_set_state)(void *cookie, bool state),
unsigned int (*set_vga_decode)(void *cookie, bool state));
#else /* CONFIG_VGA_ARB */
static inline void vga_set_legacy_decoding(struct pci_dev *pdev,
@ -79,7 +78,6 @@ static inline int vga_remove_vgacon(struct pci_dev *pdev)
return 0;
}
static inline int vga_client_register(struct pci_dev *pdev, void *cookie,
void (*irq_set_state)(void *cookie, bool state),
unsigned int (*set_vga_decode)(void *cookie, bool state))
{
return 0;
@ -118,7 +116,7 @@ static inline int vga_get_uninterruptible(struct pci_dev *pdev,
static inline void vga_client_unregister(struct pci_dev *pdev)
{
vga_client_register(pdev, NULL, NULL, NULL);
vga_client_register(pdev, NULL, NULL);
}
#endif /* LINUX_VGA_H */