99 строки
2.4 KiB
C
99 строки
2.4 KiB
C
|
#include <linux/vgaarb.h>
|
||
|
|
#include <linux/vga_switcheroo.h>
|
||
|
|
|
||
|
|
#include "drmP.h"
|
||
|
|
#include "drm_crtc_helper.h"
|
||
|
|
|
||
|
|
#include "nouveau_drm.h"
|
||
|
|
#include "nouveau_acpi.h"
|
||
|
|
#include "nouveau_fbcon.h"
|
||
|
|
|
||
|
|
static unsigned int
|
||
|
|
nouveau_vga_set_decode(void *priv, bool state)
|
||
|
|
{
|
||
|
|
struct nouveau_device *device = nouveau_dev(priv);
|
||
|
|
|
||
|
|
if (device->chipset >= 0x40)
|
||
|
|
nv_wr32(device, 0x088054, state);
|
||
|
|
else
|
||
|
|
nv_wr32(device, 0x001854, state);
|
||
|
|
|
||
|
|
if (state)
|
||
|
|
return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM |
|
||
|
|
VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
|
||
|
|
else
|
||
|
|
return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
nouveau_switcheroo_set_state(struct pci_dev *pdev,
|
||
|
|
enum vga_switcheroo_state state)
|
||
|
|
{
|
||
|
|
struct drm_device *dev = pci_get_drvdata(pdev);
|
||
|
|
pm_message_t pmm = { .event = PM_EVENT_SUSPEND };
|
||
|
|
|
||
|
|
if (state == VGA_SWITCHEROO_ON) {
|
||
|
|
printk(KERN_ERR "VGA switcheroo: switched nouveau on\n");
|
||
|
|
dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
|
||
|
|
nouveau_drm_resume(pdev);
|
||
|
|
drm_kms_helper_poll_enable(dev);
|
||
|
|
dev->switch_power_state = DRM_SWITCH_POWER_ON;
|
||
|
|
} else {
|
||
|
|
printk(KERN_ERR "VGA switcheroo: switched nouveau off\n");
|
||
|
|
dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
|
||
|
|
drm_kms_helper_poll_disable(dev);
|
||
|
|
nouveau_switcheroo_optimus_dsm();
|
||
|
|
nouveau_drm_suspend(pdev, pmm);
|
||
|
|
dev->switch_power_state = DRM_SWITCH_POWER_OFF;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
nouveau_switcheroo_reprobe(struct pci_dev *pdev)
|
||
|
|
{
|
||
|
|
struct drm_device *dev = pci_get_drvdata(pdev);
|
||
|
|
nouveau_fbcon_output_poll_changed(dev);
|
||
|
|
}
|
||
|
|
|
||
|
|
static bool
|
||
|
|
nouveau_switcheroo_can_switch(struct pci_dev *pdev)
|
||
|
|
{
|
||
|
|
struct drm_device *dev = pci_get_drvdata(pdev);
|
||
|
|
bool can_switch;
|
||
|
|
|
||
|
|
spin_lock(&dev->count_lock);
|
||
|
|
can_switch = (dev->open_count == 0);
|
||
|
|
spin_unlock(&dev->count_lock);
|
||
|
|
return can_switch;
|
||
|
|
}
|
||
|
|
|
||
|
|
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,
|
||
|
|
};
|
||
|
|
|
||
|
|
void
|
||
|
|
nouveau_vga_init(struct nouveau_drm *drm)
|
||
|
|
{
|
||
|
|
struct drm_device *dev = drm->dev;
|
||
|
|
vga_client_register(dev->pdev, dev, NULL, nouveau_vga_set_decode);
|
||
|
|
vga_switcheroo_register_client(dev->pdev, &nouveau_switcheroo_ops);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
nouveau_vga_fini(struct nouveau_drm *drm)
|
||
|
|
{
|
||
|
|
struct drm_device *dev = drm->dev;
|
||
|
|
vga_switcheroo_unregister_client(dev->pdev);
|
||
|
|
vga_client_register(dev->pdev, NULL, NULL, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void
|
||
|
|
nouveau_vga_lastclose(struct drm_device *dev)
|
||
|
|
{
|
||
|
|
vga_switcheroo_process_delayed_switch();
|
||
|
|
}
|