From f6b1772b255504e9666cb8b1beabfd00abb2da56 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 16 Jul 2021 08:16:33 +0200 Subject: [PATCH] vgaarb: remove the unused irq_set_state argument to vga_client_register MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Link: https://patchwork.freedesktop.org/patch/msgid/20210716061634.2446357-7-hch@lst.de Acked-by: Christian König Signed-off-by: Christian König --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 +- drivers/gpu/drm/i915/display/intel_vga.c | 2 +- drivers/gpu/drm/nouveau/nouveau_vga.c | 2 +- drivers/gpu/drm/radeon/radeon_device.c | 2 +- drivers/gpu/vga/vgaarb.c | 23 +---------------------- drivers/vfio/pci/vfio_pci.c | 2 +- include/linux/vgaarb.h | 4 +--- 7 files changed, 7 insertions(+), 30 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index d18bfce..3c817f7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -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; diff --git a/drivers/gpu/drm/i915/display/intel_vga.c b/drivers/gpu/drm/i915/display/intel_vga.c index 833f9ec..0222719 100644 --- a/drivers/gpu/drm/i915/display/intel_vga.c +++ b/drivers/gpu/drm/i915/display/intel_vga.c @@ -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; diff --git a/drivers/gpu/drm/nouveau/nouveau_vga.c b/drivers/gpu/drm/nouveau/nouveau_vga.c index de7a3a8..d071c11 100644 --- a/drivers/gpu/drm/nouveau/nouveau_vga.c +++ b/drivers/gpu/drm/nouveau/nouveau_vga.c @@ -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)) diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index d781914..11e8e42 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -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; diff --git a/drivers/gpu/vga/vgaarb.c b/drivers/gpu/vga/vgaarb.c index 85b765b..4bde017 100644 --- a/drivers/gpu/vga/vgaarb.c +++ b/drivers/gpu/vga/vgaarb.c @@ -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; diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c index 1dd2c58..b038900 100644 --- a/drivers/vfio/pci/vfio_pci.c +++ b/drivers/vfio/pci/vfio_pci.c @@ -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)); diff --git a/include/linux/vgaarb.h b/include/linux/vgaarb.h index 7bca61a..ea45d3e 100644 --- a/include/linux/vgaarb.h +++ b/include/linux/vgaarb.h @@ -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 */ -- 2.7.4