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authorBen Skeggs <bskeggs@redhat.com>2012-10-31 12:11:15 +1000
committerBen Skeggs <bskeggs@redhat.com>2012-10-31 12:11:15 +1000
commit9430738d80223a1cd791a2baa74fa170d3df1262 (patch)
tree83f51ac27c22e60e66338726e010489914512397 /drivers/gpu
parent5cad16acd25b16681a060d28d10eeacf98d07701 (diff)
drm/nouveau: resurrect headless mode since rework
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_display.c34
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_drm.c34
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_drm.h2
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_irq.c16
4 files changed, 51 insertions, 35 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index d2f8ffeed742..0185837d9862 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -360,23 +360,26 @@ nouveau_display_create(struct drm_device *dev)
drm_kms_helper_poll_init(dev);
drm_kms_helper_poll_disable(dev);
- if (nv_device(drm->device)->card_type < NV_50)
- ret = nv04_display_create(dev);
- else
- if (nv_device(drm->device)->card_type < NV_D0)
- ret = nv50_display_create(dev);
- else
- ret = nvd0_display_create(dev);
- if (ret)
- goto disp_create_err;
-
- if (dev->mode_config.num_crtc) {
- ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
+ if (nouveau_modeset == 1) {
+ if (nv_device(drm->device)->card_type < NV_50)
+ ret = nv04_display_create(dev);
+ else
+ if (nv_device(drm->device)->card_type < NV_D0)
+ ret = nv50_display_create(dev);
+ else
+ ret = nvd0_display_create(dev);
if (ret)
- goto vblank_err;
+ goto disp_create_err;
+
+ if (dev->mode_config.num_crtc) {
+ ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
+ if (ret)
+ goto vblank_err;
+ }
+
+ nouveau_backlight_init(dev);
}
- nouveau_backlight_init(dev);
return 0;
vblank_err:
@@ -395,7 +398,8 @@ nouveau_display_destroy(struct drm_device *dev)
nouveau_backlight_exit(dev);
drm_vblank_cleanup(dev);
- disp->dtor(dev);
+ if (disp->dtor)
+ disp->dtor(dev);
drm_kms_helper_poll_fini(dev);
drm_mode_config_cleanup(dev);
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index ccae8c26ae2b..9cc83f18f9dc 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -63,8 +63,9 @@ MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
static int nouveau_noaccel = 0;
module_param_named(noaccel, nouveau_noaccel, int, 0400);
-MODULE_PARM_DESC(modeset, "enable driver");
-static int nouveau_modeset = -1;
+MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
+ "0 = disabled, 1 = enabled, 2 = headless)");
+int nouveau_modeset = -1;
module_param_named(modeset, nouveau_modeset, int, 0400);
static struct drm_driver driver;
@@ -363,7 +364,8 @@ nouveau_drm_unload(struct drm_device *dev)
nouveau_pm_fini(dev);
- nouveau_display_fini(dev);
+ if (dev->mode_config.num_crtc)
+ nouveau_display_fini(dev);
nouveau_display_destroy(dev);
nouveau_irq_fini(dev);
@@ -403,13 +405,15 @@ nouveau_drm_suspend(struct pci_dev *pdev, pm_message_t pm_state)
pm_state.event == PM_EVENT_PRETHAW)
return 0;
- NV_INFO(drm, "suspending fbcon...\n");
- nouveau_fbcon_set_suspend(dev, 1);
+ if (dev->mode_config.num_crtc) {
+ NV_INFO(drm, "suspending fbcon...\n");
+ nouveau_fbcon_set_suspend(dev, 1);
- NV_INFO(drm, "suspending display...\n");
- ret = nouveau_display_suspend(dev);
- if (ret)
- return ret;
+ NV_INFO(drm, "suspending display...\n");
+ ret = nouveau_display_suspend(dev);
+ if (ret)
+ return ret;
+ }
NV_INFO(drm, "evicting buffers...\n");
ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
@@ -445,8 +449,10 @@ fail_client:
nouveau_client_init(&cli->base);
}
- NV_INFO(drm, "resuming display...\n");
- nouveau_display_resume(dev);
+ if (dev->mode_config.num_crtc) {
+ NV_INFO(drm, "resuming display...\n");
+ nouveau_display_resume(dev);
+ }
return ret;
}
@@ -486,8 +492,10 @@ nouveau_drm_resume(struct pci_dev *pdev)
nouveau_irq_postinstall(dev);
nouveau_pm_resume(dev);
- NV_INFO(drm, "resuming display...\n");
- nouveau_display_resume(dev);
+ if (dev->mode_config.num_crtc) {
+ NV_INFO(drm, "resuming display...\n");
+ nouveau_display_resume(dev);
+ }
return 0;
}
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.h b/drivers/gpu/drm/nouveau/nouveau_drm.h
index 819471217546..a10169927086 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.h
@@ -141,4 +141,6 @@ int nouveau_drm_resume(struct pci_dev *);
nv_info((cli), fmt, ##args); \
} while (0)
+extern int nouveau_modeset;
+
#endif
diff --git a/drivers/gpu/drm/nouveau/nouveau_irq.c b/drivers/gpu/drm/nouveau/nouveau_irq.c
index 9ca8afdb5549..1d8cb506a28a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_irq.c
+++ b/drivers/gpu/drm/nouveau/nouveau_irq.c
@@ -61,13 +61,15 @@ nouveau_irq_handler(DRM_IRQ_ARGS)
nv_subdev(pmc)->intr(nv_subdev(pmc));
- if (device->card_type >= NV_D0) {
- if (nv_rd32(device, 0x000100) & 0x04000000)
- nvd0_display_intr(dev);
- } else
- if (device->card_type >= NV_50) {
- if (nv_rd32(device, 0x000100) & 0x04000000)
- nv50_display_intr(dev);
+ if (dev->mode_config.num_crtc) {
+ if (device->card_type >= NV_D0) {
+ if (nv_rd32(device, 0x000100) & 0x04000000)
+ nvd0_display_intr(dev);
+ } else
+ if (device->card_type >= NV_50) {
+ if (nv_rd32(device, 0x000100) & 0x04000000)
+ nv50_display_intr(dev);
+ }
}
return IRQ_HANDLED;