diff options
Diffstat (limited to 'drivers/gpu/drm/tegra/drm.c')
| -rw-r--r-- | drivers/gpu/drm/tegra/drm.c | 51 |
1 files changed, 39 insertions, 12 deletions
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c index ff36171c8fb7..4596073fe28f 100644 --- a/drivers/gpu/drm/tegra/drm.c +++ b/drivers/gpu/drm/tegra/drm.c @@ -4,6 +4,7 @@ * Copyright (C) 2012-2016 NVIDIA CORPORATION. All rights reserved. */ +#include <linux/aperture.h> #include <linux/bitops.h> #include <linux/host1x.h> #include <linux/idr.h> @@ -12,7 +13,7 @@ #include <linux/platform_device.h> #include <linux/pm_runtime.h> -#include <drm/drm_aperture.h> +#include <drm/clients/drm_client_setup.h> #include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_debugfs.h> @@ -34,7 +35,6 @@ #define DRIVER_NAME "tegra" #define DRIVER_DESC "NVIDIA Tegra graphics" -#define DRIVER_DATE "20120330" #define DRIVER_MAJOR 1 #define DRIVER_MINOR 0 #define DRIVER_PATCHLEVEL 0 @@ -801,6 +801,7 @@ static const struct file_operations tegra_drm_fops = { .read = drm_read, .compat_ioctl = drm_compat_ioctl, .llseek = noop_llseek, + .fop_flags = FOP_UNSIGNED_OFFSET, }; static int tegra_drm_context_cleanup(int id, void *p, void *data) @@ -891,13 +892,14 @@ static const struct drm_driver tegra_drm_driver = { .dumb_create = tegra_bo_dumb_create, + TEGRA_FBDEV_DRIVER_OPS, + .ioctls = tegra_drm_ioctls, .num_ioctls = ARRAY_SIZE(tegra_drm_ioctls), .fops = &tegra_drm_fops, .name = DRIVER_NAME, .desc = DRIVER_DESC, - .date = DRIVER_DATE, .major = DRIVER_MAJOR, .minor = DRIVER_MINOR, .patchlevel = DRIVER_PATCHLEVEL, @@ -960,7 +962,8 @@ int host1x_client_iommu_attach(struct host1x_client *client) * not the shared IOMMU domain, don't try to attach it to a different * domain. This allows using the IOMMU-backed DMA API. */ - if (domain && domain != tegra->domain) + if (domain && domain->type != IOMMU_DOMAIN_IDENTITY && + domain != tegra->domain) return 0; if (tegra->domain) { @@ -1134,6 +1137,7 @@ static bool host1x_drm_wants_iommu(struct host1x_device *dev) static int host1x_drm_probe(struct host1x_device *dev) { + struct device *dma_dev = dev->dev.parent; struct tegra_drm *tegra; struct drm_device *drm; int err; @@ -1148,10 +1152,10 @@ static int host1x_drm_probe(struct host1x_device *dev) goto put; } - if (host1x_drm_wants_iommu(dev) && iommu_present(&platform_bus_type)) { - tegra->domain = iommu_domain_alloc(&platform_bus_type); - if (!tegra->domain) { - err = -ENOMEM; + if (host1x_drm_wants_iommu(dev) && device_iommu_mapped(dma_dev)) { + tegra->domain = iommu_paging_domain_alloc(dma_dev); + if (IS_ERR(tegra->domain)) { + err = PTR_ERR(tegra->domain); goto free; } @@ -1242,15 +1246,32 @@ static int host1x_drm_probe(struct host1x_device *dev) drm_mode_config_reset(drm); - err = drm_aperture_remove_framebuffers(&tegra_drm_driver); - if (err < 0) - goto hub; + /* + * Only take over from a potential firmware framebuffer if any CRTCs + * have been registered. This must not be a fatal error because there + * are other accelerators that are exposed via this driver. + * + * Another case where this happens is on Tegra234 where the display + * hardware is no longer part of the host1x complex, so this driver + * will not expose any modesetting features. + */ + if (drm->mode_config.num_crtc > 0) { + err = aperture_remove_all_conflicting_devices(tegra_drm_driver.name); + if (err < 0) + goto hub; + } else { + /* + * Indicate to userspace that this doesn't expose any display + * capabilities. + */ + drm->driver_features &= ~(DRIVER_MODESET | DRIVER_ATOMIC); + } err = drm_dev_register(drm, 0); if (err < 0) goto hub; - tegra_fbdev_setup(drm); + drm_client_setup(drm, NULL); return 0; @@ -1312,6 +1333,11 @@ static int host1x_drm_remove(struct host1x_device *dev) return 0; } +static void host1x_drm_shutdown(struct host1x_device *dev) +{ + drm_atomic_helper_shutdown(dev_get_drvdata(&dev->dev)); +} + #ifdef CONFIG_PM_SLEEP static int host1x_drm_suspend(struct device *dev) { @@ -1380,6 +1406,7 @@ static struct host1x_driver host1x_drm_driver = { }, .probe = host1x_drm_probe, .remove = host1x_drm_remove, + .shutdown = host1x_drm_shutdown, .subdevs = host1x_drm_subdevs, }; |