drm: Rework vblank-wait handling to allow interrupt reduction.

[linux-2.6-block.git] / drivers / gpu / drm / radeon / radeon_drv.c

diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index 349ac3d3b8480c13d91c850f917819774f92edbf..71af746a4e4760d24c7c36e1141882b43117137a 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -38,7 +38,7 @@
 
 int radeon_no_wb;
 
-MODULE_PARM_DESC(no_wb, "Disable AGP writeback for scratch registers\n");
+MODULE_PARM_DESC(no_wb, "Disable AGP writeback for scratch registers");
 module_param_named(no_wb, radeon_no_wb, int, 0444);
 
 static int dri_library_name(struct drm_device *dev, char *buf)
@@ -52,6 +52,28 @@ static int dri_library_name(struct drm_device *dev, char *buf)
                        "r300"));
 }
 
+static int radeon_suspend(struct drm_device *dev, pm_message_t state)
+{
+       drm_radeon_private_t *dev_priv = dev->dev_private;
+
+       /* Disable *all* interrupts */
+       if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS690)
+               RADEON_WRITE(R500_DxMODE_INT_MASK, 0);
+       RADEON_WRITE(RADEON_GEN_INT_CNTL, 0);
+       return 0;
+}
+
+static int radeon_resume(struct drm_device *dev)
+{
+       drm_radeon_private_t *dev_priv = dev->dev_private;
+
+       /* Restore interrupt registers */
+       if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS690)
+               RADEON_WRITE(R500_DxMODE_INT_MASK, dev_priv->r500_disp_irq_reg);
+       RADEON_WRITE(RADEON_GEN_INT_CNTL, dev_priv->irq_enable_reg);
+       return 0;
+}
+
 static struct pci_device_id pciidlist[] = {
        radeon_PCI_IDS
 };
@@ -59,8 +81,7 @@ static struct pci_device_id pciidlist[] = {
 static struct drm_driver driver = {
        .driver_features =
            DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | DRIVER_SG |
-           DRIVER_HAVE_IRQ | DRIVER_HAVE_DMA | DRIVER_IRQ_SHARED |
-           DRIVER_IRQ_VBL | DRIVER_IRQ_VBL2,
+           DRIVER_HAVE_IRQ | DRIVER_HAVE_DMA | DRIVER_IRQ_SHARED,
        .dev_priv_size = sizeof(drm_radeon_buf_priv_t),
        .load = radeon_driver_load,
        .firstopen = radeon_driver_firstopen,
@@ -69,8 +90,11 @@ static struct drm_driver driver = {
        .postclose = radeon_driver_postclose,
        .lastclose = radeon_driver_lastclose,
        .unload = radeon_driver_unload,
-       .vblank_wait = radeon_driver_vblank_wait,
-       .vblank_wait2 = radeon_driver_vblank_wait2,
+       .suspend = radeon_suspend,
+       .resume = radeon_resume,
+       .get_vblank_counter = radeon_get_vblank_counter,
+       .enable_vblank = radeon_enable_vblank,
+       .disable_vblank = radeon_disable_vblank,
        .dri_library_name = dri_library_name,
        .irq_preinstall = radeon_driver_irq_preinstall,
        .irq_postinstall = radeon_driver_irq_postinstall,