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path: root/drivers/gpu/drm/exynos/exynos_drm_drv.c
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Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_drv.c')
-rw-r--r--drivers/gpu/drm/exynos/exynos_drm_drv.c281
1 files changed, 142 insertions, 139 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index 68f0f36..5344940 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -130,6 +130,8 @@ static void exynos_drm_atomic_work(struct work_struct *work)
exynos_atomic_commit_complete(commit);
}
+static struct device *exynos_drm_get_dma_device(void);
+
static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
{
struct exynos_drm_private *private;
@@ -147,6 +149,16 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
dev_set_drvdata(dev->dev, dev);
dev->dev_private = (void *)private;
+ /* the first real CRTC device is used for all dma mapping operations */
+ private->dma_dev = exynos_drm_get_dma_device();
+ if (!private->dma_dev) {
+ DRM_ERROR("no device found for DMA mapping operations.\n");
+ ret = -ENODEV;
+ goto err_free_private;
+ }
+ DRM_INFO("Exynos DRM: using %s device for DMA mapping operations\n",
+ dev_name(private->dma_dev));
+
/*
* create mapping to manage iommu table and set a pointer to iommu
* mapping structure to iommu_mapping of private data.
@@ -340,20 +352,6 @@ static void exynos_drm_preclose(struct drm_device *dev,
static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
{
- struct drm_pending_event *e, *et;
- unsigned long flags;
-
- if (!file->driver_priv)
- return;
-
- spin_lock_irqsave(&dev->event_lock, flags);
- /* Release all events handled by page flip handler but not freed. */
- list_for_each_entry_safe(e, et, &file->event_list, link) {
- list_del(&e->link);
- e->destroy(e);
- }
- spin_unlock_irqrestore(&dev->event_lock, flags);
-
kfree(file->driver_priv);
file->driver_priv = NULL;
}
@@ -372,6 +370,8 @@ static const struct vm_operations_struct exynos_drm_gem_vm_ops = {
static const struct drm_ioctl_desc exynos_ioctls[] = {
DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
DRM_AUTH | DRM_RENDER_ALLOW),
+ DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP, exynos_drm_gem_map_ioctl,
+ DRM_AUTH | DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET, exynos_drm_gem_get_ioctl,
DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION, vidi_connection_ioctl,
@@ -495,69 +495,65 @@ static const struct dev_pm_ops exynos_drm_pm_ops = {
/* forward declaration */
static struct platform_driver exynos_drm_platform_driver;
+struct exynos_drm_driver_info {
+ struct platform_driver *driver;
+ unsigned int flags;
+};
+
+#define DRM_COMPONENT_DRIVER BIT(0) /* supports component framework */
+#define DRM_VIRTUAL_DEVICE BIT(1) /* create virtual platform device */
+#define DRM_DMA_DEVICE BIT(2) /* can be used for dma allocations */
+
+#define DRV_PTR(drv, cond) (IS_ENABLED(cond) ? &drv : NULL)
+
/*
* Connector drivers should not be placed before associated crtc drivers,
* because connector requires pipe number of its crtc during initialization.
*/
-static struct platform_driver *const exynos_drm_kms_drivers[] = {
-#ifdef CONFIG_DRM_EXYNOS_FIMD
- &fimd_driver,
-#endif
-#ifdef CONFIG_DRM_EXYNOS5433_DECON
- &exynos5433_decon_driver,
-#endif
-#ifdef CONFIG_DRM_EXYNOS7_DECON
- &decon_driver,
-#endif
-#ifdef CONFIG_DRM_EXYNOS_MIC
- &mic_driver,
-#endif
-#ifdef CONFIG_DRM_EXYNOS_DP
- &dp_driver,
-#endif
-#ifdef CONFIG_DRM_EXYNOS_DSI
- &dsi_driver,
-#endif
-#ifdef CONFIG_DRM_EXYNOS_MIXER
- &mixer_driver,
-#endif
-#ifdef CONFIG_DRM_EXYNOS_HDMI
- &hdmi_driver,
-#endif
-#ifdef CONFIG_DRM_EXYNOS_VIDI
- &vidi_driver,
-#endif
-};
-
-static struct platform_driver *const exynos_drm_non_kms_drivers[] = {
-#ifdef CONFIG_DRM_EXYNOS_G2D
- &g2d_driver,
-#endif
-#ifdef CONFIG_DRM_EXYNOS_FIMC
- &fimc_driver,
-#endif
-#ifdef CONFIG_DRM_EXYNOS_ROTATOR
- &rotator_driver,
-#endif
-#ifdef CONFIG_DRM_EXYNOS_GSC
- &gsc_driver,
-#endif
-#ifdef CONFIG_DRM_EXYNOS_IPP
- &ipp_driver,
-#endif
- &exynos_drm_platform_driver,
-};
-
-static struct platform_driver *const exynos_drm_drv_with_simple_dev[] = {
-#ifdef CONFIG_DRM_EXYNOS_VIDI
- &vidi_driver,
-#endif
-#ifdef CONFIG_DRM_EXYNOS_IPP
- &ipp_driver,
-#endif
- &exynos_drm_platform_driver,
+static struct exynos_drm_driver_info exynos_drm_drivers[] = {
+ {
+ DRV_PTR(fimd_driver, CONFIG_DRM_EXYNOS_FIMD),
+ DRM_COMPONENT_DRIVER | DRM_DMA_DEVICE
+ }, {
+ DRV_PTR(exynos5433_decon_driver, CONFIG_DRM_EXYNOS5433_DECON),
+ DRM_COMPONENT_DRIVER | DRM_DMA_DEVICE
+ }, {
+ DRV_PTR(decon_driver, CONFIG_DRM_EXYNOS7_DECON),
+ DRM_COMPONENT_DRIVER | DRM_DMA_DEVICE
+ }, {
+ DRV_PTR(mixer_driver, CONFIG_DRM_EXYNOS_MIXER),
+ DRM_COMPONENT_DRIVER | DRM_DMA_DEVICE
+ }, {
+ DRV_PTR(mic_driver, CONFIG_DRM_EXYNOS_MIC),
+ DRM_COMPONENT_DRIVER
+ }, {
+ DRV_PTR(dp_driver, CONFIG_DRM_EXYNOS_DP),
+ DRM_COMPONENT_DRIVER
+ }, {
+ DRV_PTR(dsi_driver, CONFIG_DRM_EXYNOS_DSI),
+ DRM_COMPONENT_DRIVER
+ }, {
+ DRV_PTR(hdmi_driver, CONFIG_DRM_EXYNOS_HDMI),
+ DRM_COMPONENT_DRIVER
+ }, {
+ DRV_PTR(vidi_driver, CONFIG_DRM_EXYNOS_VIDI),
+ DRM_COMPONENT_DRIVER | DRM_VIRTUAL_DEVICE
+ }, {
+ DRV_PTR(g2d_driver, CONFIG_DRM_EXYNOS_G2D),
+ }, {
+ DRV_PTR(fimc_driver, CONFIG_DRM_EXYNOS_FIMC),
+ }, {
+ DRV_PTR(rotator_driver, CONFIG_DRM_EXYNOS_ROTATOR),
+ }, {
+ DRV_PTR(gsc_driver, CONFIG_DRM_EXYNOS_GSC),
+ }, {
+ DRV_PTR(ipp_driver, CONFIG_DRM_EXYNOS_IPP),
+ DRM_VIRTUAL_DEVICE
+ }, {
+ &exynos_drm_platform_driver,
+ DRM_VIRTUAL_DEVICE
+ }
};
-#define PDEV_COUNT ARRAY_SIZE(exynos_drm_drv_with_simple_dev)
static int compare_dev(struct device *dev, void *data)
{
@@ -569,11 +565,15 @@ static struct component_match *exynos_drm_match_add(struct device *dev)
struct component_match *match = NULL;
int i;
- for (i = 0; i < ARRAY_SIZE(exynos_drm_kms_drivers); ++i) {
- struct device_driver *drv = &exynos_drm_kms_drivers[i]->driver;
+ for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) {
+ struct exynos_drm_driver_info *info = &exynos_drm_drivers[i];
struct device *p = NULL, *d;
- while ((d = bus_find_device(&platform_bus_type, p, drv,
+ if (!info->driver || !(info->flags & DRM_COMPONENT_DRIVER))
+ continue;
+
+ while ((d = bus_find_device(&platform_bus_type, p,
+ &info->driver->driver,
(void *)platform_bus_type.match))) {
put_device(p);
component_match_add(dev, &match, compare_dev, d);
@@ -630,91 +630,102 @@ static struct platform_driver exynos_drm_platform_driver = {
},
};
-static struct platform_device *exynos_drm_pdevs[PDEV_COUNT];
+static struct device *exynos_drm_get_dma_device(void)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) {
+ struct exynos_drm_driver_info *info = &exynos_drm_drivers[i];
+ struct device *dev;
+
+ if (!info->driver || !(info->flags & DRM_DMA_DEVICE))
+ continue;
+
+ while ((dev = bus_find_device(&platform_bus_type, NULL,
+ &info->driver->driver,
+ (void *)platform_bus_type.match))) {
+ put_device(dev);
+ return dev;
+ }
+ }
+ return NULL;
+}
static void exynos_drm_unregister_devices(void)
{
- int i = PDEV_COUNT;
+ int i;
+
+ for (i = ARRAY_SIZE(exynos_drm_drivers) - 1; i >= 0; --i) {
+ struct exynos_drm_driver_info *info = &exynos_drm_drivers[i];
+ struct device *dev;
+
+ if (!info->driver || !(info->flags & DRM_VIRTUAL_DEVICE))
+ continue;
- while (--i >= 0) {
- platform_device_unregister(exynos_drm_pdevs[i]);
- exynos_drm_pdevs[i] = NULL;
+ while ((dev = bus_find_device(&platform_bus_type, NULL,
+ &info->driver->driver,
+ (void *)platform_bus_type.match))) {
+ put_device(dev);
+ platform_device_unregister(to_platform_device(dev));
+ }
}
}
static int exynos_drm_register_devices(void)
{
+ struct platform_device *pdev;
int i;
- for (i = 0; i < PDEV_COUNT; ++i) {
- struct platform_driver *d = exynos_drm_drv_with_simple_dev[i];
- struct platform_device *pdev =
- platform_device_register_simple(d->driver.name, -1,
- NULL, 0);
+ for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) {
+ struct exynos_drm_driver_info *info = &exynos_drm_drivers[i];
- if (!IS_ERR(pdev)) {
- exynos_drm_pdevs[i] = pdev;
+ if (!info->driver || !(info->flags & DRM_VIRTUAL_DEVICE))
continue;
- }
- while (--i >= 0) {
- platform_device_unregister(exynos_drm_pdevs[i]);
- exynos_drm_pdevs[i] = NULL;
- }
- return PTR_ERR(pdev);
+ pdev = platform_device_register_simple(
+ info->driver->driver.name, -1, NULL, 0);
+ if (IS_ERR(pdev))
+ goto fail;
}
return 0;
+fail:
+ exynos_drm_unregister_devices();
+ return PTR_ERR(pdev);
}
-static void exynos_drm_unregister_drivers(struct platform_driver * const *drv,
- int count)
+static void exynos_drm_unregister_drivers(void)
{
- while (--count >= 0)
- platform_driver_unregister(drv[count]);
-}
+ int i;
-static int exynos_drm_register_drivers(struct platform_driver * const *drv,
- int count)
-{
- int i, ret;
+ for (i = ARRAY_SIZE(exynos_drm_drivers) - 1; i >= 0; --i) {
+ struct exynos_drm_driver_info *info = &exynos_drm_drivers[i];
- for (i = 0; i < count; ++i) {
- ret = platform_driver_register(drv[i]);
- if (!ret)
+ if (!info->driver)
continue;
- while (--i >= 0)
- platform_driver_unregister(drv[i]);
-
- return ret;
+ platform_driver_unregister(info->driver);
}
-
- return 0;
}
-static inline int exynos_drm_register_kms_drivers(void)
+static int exynos_drm_register_drivers(void)
{
- return exynos_drm_register_drivers(exynos_drm_kms_drivers,
- ARRAY_SIZE(exynos_drm_kms_drivers));
-}
+ int i, ret;
-static inline int exynos_drm_register_non_kms_drivers(void)
-{
- return exynos_drm_register_drivers(exynos_drm_non_kms_drivers,
- ARRAY_SIZE(exynos_drm_non_kms_drivers));
-}
+ for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) {
+ struct exynos_drm_driver_info *info = &exynos_drm_drivers[i];
-static inline void exynos_drm_unregister_kms_drivers(void)
-{
- exynos_drm_unregister_drivers(exynos_drm_kms_drivers,
- ARRAY_SIZE(exynos_drm_kms_drivers));
-}
+ if (!info->driver)
+ continue;
-static inline void exynos_drm_unregister_non_kms_drivers(void)
-{
- exynos_drm_unregister_drivers(exynos_drm_non_kms_drivers,
- ARRAY_SIZE(exynos_drm_non_kms_drivers));
+ ret = platform_driver_register(info->driver);
+ if (ret)
+ goto fail;
+ }
+ return 0;
+fail:
+ exynos_drm_unregister_drivers();
+ return ret;
}
static int exynos_drm_init(void)
@@ -725,19 +736,12 @@ static int exynos_drm_init(void)
if (ret)
return ret;
- ret = exynos_drm_register_kms_drivers();
+ ret = exynos_drm_register_drivers();
if (ret)
goto err_unregister_pdevs;
- ret = exynos_drm_register_non_kms_drivers();
- if (ret)
- goto err_unregister_kms_drivers;
-
return 0;
-err_unregister_kms_drivers:
- exynos_drm_unregister_kms_drivers();
-
err_unregister_pdevs:
exynos_drm_unregister_devices();
@@ -746,8 +750,7 @@ err_unregister_pdevs:
static void exynos_drm_exit(void)
{
- exynos_drm_unregister_non_kms_drivers();
- exynos_drm_unregister_kms_drivers();
+ exynos_drm_unregister_drivers();
exynos_drm_unregister_devices();
}
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