From 26ec685ff9d9c16525d8ec4c97e52fcdb187b302 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 11 May 2012 07:51:17 +0200 Subject: [PATCH] vga_switcheroo: Introduce struct vga_switcheroo_client_ops This changes the API as a clean-up. Instead of passing multiple function pointers at each time, introduce a new struct holding the whole callback functions and pass it to the registration. The same struct will be used for the upcoming audio client registration, too. Signed-off-by: Takashi Iwai --- drivers/gpu/drm/i915/i915_dma.c | 11 +++++++---- drivers/gpu/drm/nouveau/nouveau_state.c | 10 +++++++--- drivers/gpu/drm/radeon/radeon_device.c | 10 ++++++---- drivers/gpu/vga/vga_switcheroo.c | 22 ++++++++-------------- include/linux/vga_switcheroo.h | 13 +++++++------ 5 files changed, 35 insertions(+), 31 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 006ea47..42d91e8 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1271,6 +1271,12 @@ static bool i915_switcheroo_can_switch(struct pci_dev *pdev) return can_switch; } +static const struct vga_switcheroo_client_ops i915_switcheroo_ops = { + .set_gpu_state = i915_switcheroo_set_state, + .reprobe = NULL, + .can_switch = i915_switcheroo_can_switch, +}; + static int i915_load_modeset_init(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; @@ -1293,10 +1299,7 @@ static int i915_load_modeset_init(struct drm_device *dev) intel_register_dsm_handler(); - ret = vga_switcheroo_register_client(dev->pdev, - i915_switcheroo_set_state, - NULL, - i915_switcheroo_can_switch); + ret = vga_switcheroo_register_client(dev->pdev, &i915_switcheroo_ops); if (ret) goto cleanup_vga_client; diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c index c2a8511e..298c09b 100644 --- a/drivers/gpu/drm/nouveau/nouveau_state.c +++ b/drivers/gpu/drm/nouveau/nouveau_state.c @@ -662,6 +662,12 @@ error: return ret; } +static const struct vga_switcheroo_client_ops nouveau_switcheroo_ops = { + .set_gpu_state = nouveau_switcheroo_set_state, + .reprobe = nouveau_switcheroo_reprobe, + .can_switch = nouveau_switcheroo_can_switch, +}; + int nouveau_card_init(struct drm_device *dev) { @@ -670,9 +676,7 @@ nouveau_card_init(struct drm_device *dev) int ret, e = 0; vga_client_register(dev->pdev, dev, NULL, nouveau_vga_set_decode); - vga_switcheroo_register_client(dev->pdev, nouveau_switcheroo_set_state, - nouveau_switcheroo_reprobe, - nouveau_switcheroo_can_switch); + vga_switcheroo_register_client(dev->pdev, &nouveau_switcheroo_ops); /* Initialise internal driver API hooks */ ret = nouveau_init_engine_ptrs(dev); diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index e1bc7e9..3d41525 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -697,6 +697,11 @@ static bool radeon_switcheroo_can_switch(struct pci_dev *pdev) return can_switch; } +static const struct vga_switcheroo_client_ops radeon_switcheroo_ops = { + .set_gpu_state = radeon_switcheroo_set_state, + .reprobe = NULL, + .can_switch = radeon_switcheroo_can_switch, +}; int radeon_device_init(struct radeon_device *rdev, struct drm_device *ddev, @@ -809,10 +814,7 @@ int radeon_device_init(struct radeon_device *rdev, /* 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_switcheroo_register_client(rdev->pdev, - radeon_switcheroo_set_state, - NULL, - radeon_switcheroo_can_switch); + vga_switcheroo_register_client(rdev->pdev, &radeon_switcheroo_ops); r = radeon_init(rdev); if (r) diff --git a/drivers/gpu/vga/vga_switcheroo.c b/drivers/gpu/vga/vga_switcheroo.c index da29da6..a049b74 100644 --- a/drivers/gpu/vga/vga_switcheroo.c +++ b/drivers/gpu/vga/vga_switcheroo.c @@ -34,9 +34,7 @@ struct vga_switcheroo_client { struct pci_dev *pdev; struct fb_info *fb_info; int pwr_state; - void (*set_gpu_state)(struct pci_dev *pdev, enum vga_switcheroo_state); - void (*reprobe)(struct pci_dev *pdev); - bool (*can_switch)(struct pci_dev *pdev); + const struct vga_switcheroo_client_ops *ops; int id; bool active; struct list_head list; @@ -109,9 +107,7 @@ static void vga_switcheroo_enable(void) } int vga_switcheroo_register_client(struct pci_dev *pdev, - void (*set_gpu_state)(struct pci_dev *pdev, enum vga_switcheroo_state), - void (*reprobe)(struct pci_dev *pdev), - bool (*can_switch)(struct pci_dev *pdev)) + const struct vga_switcheroo_client_ops *ops) { struct vga_switcheroo_client *client; @@ -121,9 +117,7 @@ int vga_switcheroo_register_client(struct pci_dev *pdev, client->pwr_state = VGA_SWITCHEROO_ON; client->pdev = pdev; - client->set_gpu_state = set_gpu_state; - client->reprobe = reprobe; - client->can_switch = can_switch; + client->ops = ops; client->id = -1; if (pdev == vga_default_device()) client->active = true; @@ -230,7 +224,7 @@ static int vga_switchon(struct vga_switcheroo_client *client) if (vgasr_priv.handler->power_state) vgasr_priv.handler->power_state(client->id, VGA_SWITCHEROO_ON); /* call the driver callback to turn on device */ - client->set_gpu_state(client->pdev, VGA_SWITCHEROO_ON); + client->ops->set_gpu_state(client->pdev, VGA_SWITCHEROO_ON); client->pwr_state = VGA_SWITCHEROO_ON; return 0; } @@ -238,7 +232,7 @@ static int vga_switchon(struct vga_switcheroo_client *client) static int vga_switchoff(struct vga_switcheroo_client *client) { /* call the driver callback to turn off device */ - client->set_gpu_state(client->pdev, VGA_SWITCHEROO_OFF); + client->ops->set_gpu_state(client->pdev, VGA_SWITCHEROO_OFF); if (vgasr_priv.handler->power_state) vgasr_priv.handler->power_state(client->id, VGA_SWITCHEROO_OFF); client->pwr_state = VGA_SWITCHEROO_OFF; @@ -284,8 +278,8 @@ static int vga_switchto_stage2(struct vga_switcheroo_client *new_client) if (ret) return ret; - if (new_client->reprobe) - new_client->reprobe(new_client->pdev); + if (new_client->ops->reprobe) + new_client->ops->reprobe(new_client->pdev); if (active->pwr_state == VGA_SWITCHEROO_ON) vga_switchoff(active); @@ -299,7 +293,7 @@ static bool check_can_switch(void) struct vga_switcheroo_client *client; list_for_each_entry(client, &vgasr_priv.clients, list) { - if (!client->can_switch(client->pdev)) { + if (!client->ops->can_switch(client->pdev)) { printk(KERN_ERR "vga_switcheroo: client %x refused switch\n", client->id); return false; } diff --git a/include/linux/vga_switcheroo.h b/include/linux/vga_switcheroo.h index 4b9a7f5..3c54ebc 100644 --- a/include/linux/vga_switcheroo.h +++ b/include/linux/vga_switcheroo.h @@ -28,13 +28,16 @@ struct vga_switcheroo_handler { int (*get_client_id)(struct pci_dev *pdev); }; +struct vga_switcheroo_client_ops { + void (*set_gpu_state)(struct pci_dev *dev, enum vga_switcheroo_state); + void (*reprobe)(struct pci_dev *dev); + bool (*can_switch)(struct pci_dev *dev); +}; #if defined(CONFIG_VGA_SWITCHEROO) void vga_switcheroo_unregister_client(struct pci_dev *dev); int vga_switcheroo_register_client(struct pci_dev *dev, - void (*set_gpu_state)(struct pci_dev *dev, enum vga_switcheroo_state), - void (*reprobe)(struct pci_dev *dev), - bool (*can_switch)(struct pci_dev *dev)); + const struct vga_switcheroo_client_ops *ops); void vga_switcheroo_client_fb_set(struct pci_dev *dev, struct fb_info *info); @@ -48,9 +51,7 @@ int vga_switcheroo_process_delayed_switch(void); static inline void vga_switcheroo_unregister_client(struct pci_dev *dev) {} static inline int vga_switcheroo_register_client(struct pci_dev *dev, - void (*set_gpu_state)(struct pci_dev *dev, enum vga_switcheroo_state), - void (*reprobe)(struct pci_dev *dev), - bool (*can_switch)(struct pci_dev *dev)) { return 0; } + const struct vga_switcheroo_client_ops *ops) { return 0; } static inline void vga_switcheroo_client_fb_set(struct pci_dev *dev, struct fb_info *info) {} static inline int vga_switcheroo_register_handler(struct vga_switcheroo_handler *handler) { return 0; } static inline void vga_switcheroo_unregister_handler(void) {} -- 2.7.4