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authorDave Airlie <airlied@redhat.com>2010-03-01 16:22:38 +1000
committerDave Airlie <airlied@redhat.com>2010-03-01 16:22:38 +1000
commit1c62233508ef7104f8a78e571fdf5c72d0dc0200 (patch)
tree31e19cbff5c1080d3015d20b24dd43ee95f4ed8c /drivers/gpu/drm/i915
parent6d9c13513661c1991bf5f4e6e1363c721292d819 (diff)
parent6a9ee8af344e3bd7dbd61e67037096cdf7f83289 (diff)
Merge branch 'gpu-switcher' of /ssd/git//linux-2.6 into drm-next-stage
* 'gpu-switcher' of /ssd/git//linux-2.6: vga_switcheroo: initial implementation (v15) fb: for framebuffer handover don't exit the loop early. Conflicts: drivers/gpu/drm/i915/i915_dma.c drivers/gpu/drm/radeon/Makefile drivers/gpu/drm/radeon/radeon.h
Diffstat (limited to 'drivers/gpu/drm/i915')
-rw-r--r--drivers/gpu/drm/i915/i915_dma.c35
-rw-r--r--drivers/gpu/drm/i915/i915_drv.c4
-rw-r--r--drivers/gpu/drm/i915/i915_drv.h2
-rw-r--r--drivers/gpu/drm/i915/intel_fb.c2
4 files changed, 41 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 3e658d6a6b7..8bfc0bbf13e 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -37,6 +37,7 @@
#include <linux/vgaarb.h>
#include <linux/acpi.h>
#include <linux/pnp.h>
+#include <linux/vga_switcheroo.h>
/* Really want an OS-independent resettable timer. Would like to have
* this loop run for (eg) 3 sec, but have the timer reset every time
@@ -1381,6 +1382,32 @@ static unsigned int i915_vga_set_decode(void *cookie, bool state)
return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
}
+static void i915_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_INFO "i915: switched off\n");
+ /* i915 resume handler doesn't set to D0 */
+ pci_set_power_state(dev->pdev, PCI_D0);
+ i915_resume(dev);
+ } else {
+ printk(KERN_ERR "i915: switched off\n");
+ i915_suspend(dev, pmm);
+ }
+}
+
+static bool i915_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 int i915_load_modeset_init(struct drm_device *dev,
unsigned long prealloc_start,
unsigned long prealloc_size,
@@ -1442,6 +1469,12 @@ static int i915_load_modeset_init(struct drm_device *dev,
if (ret)
goto destroy_ringbuffer;
+ ret = vga_switcheroo_register_client(dev->pdev,
+ i915_switcheroo_set_state,
+ i915_switcheroo_can_switch);
+ if (ret)
+ goto destroy_ringbuffer;
+
intel_modeset_init(dev);
ret = drm_irq_install(dev);
@@ -1733,6 +1766,7 @@ int i915_driver_unload(struct drm_device *dev)
dev_priv->child_dev_num = 0;
}
drm_irq_uninstall(dev);
+ vga_switcheroo_unregister_client(dev->pdev);
vga_client_register(dev->pdev, NULL, NULL, NULL);
}
@@ -1802,6 +1836,7 @@ void i915_driver_lastclose(struct drm_device * dev)
if (!dev_priv || drm_core_check_feature(dev, DRIVER_MODESET)) {
drm_fb_helper_restore();
+ vga_switcheroo_process_delayed_switch();
return;
}
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 85ad020125c..1b2e95455c0 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -214,7 +214,7 @@ static int i915_drm_freeze(struct drm_device *dev)
return 0;
}
-static int i915_suspend(struct drm_device *dev, pm_message_t state)
+int i915_suspend(struct drm_device *dev, pm_message_t state)
{
int error;
@@ -268,7 +268,7 @@ static int i915_drm_thaw(struct drm_device *dev)
return error;
}
-static int i915_resume(struct drm_device *dev)
+int i915_resume(struct drm_device *dev)
{
if (pci_enable_device(dev->pdev))
return -EIO;
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index f97592609da..979439cfb82 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -773,6 +773,8 @@ extern unsigned int i915_fbpercrtc;
extern unsigned int i915_powersave;
extern unsigned int i915_lvds_downclock;
+extern int i915_suspend(struct drm_device *dev, pm_message_t state);
+extern int i915_resume(struct drm_device *dev);
extern void i915_save_display(struct drm_device *dev);
extern void i915_restore_display(struct drm_device *dev);
extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c
index aaabbcbe590..8cd791dc5b2 100644
--- a/drivers/gpu/drm/i915/intel_fb.c
+++ b/drivers/gpu/drm/i915/intel_fb.c
@@ -35,6 +35,7 @@
#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/init.h>
+#include <linux/vga_switcheroo.h>
#include "drmP.h"
#include "drm.h"
@@ -235,6 +236,7 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width,
obj_priv->gtt_offset, fbo);
mutex_unlock(&dev->struct_mutex);
+ vga_switcheroo_client_fb_set(dev->pdev, info);
return 0;
out_unpin: