diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0578-drm-vc4-Disable-V3D-interactions-if-the-v3d-componen.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0578-drm-vc4-Disable-V3D-interactions-if-the-v3d-componen.patch | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0578-drm-vc4-Disable-V3D-interactions-if-the-v3d-componen.patch b/target/linux/brcm2708/patches-4.19/950-0578-drm-vc4-Disable-V3D-interactions-if-the-v3d-componen.patch deleted file mode 100644 index 863cba6463..0000000000 --- a/target/linux/brcm2708/patches-4.19/950-0578-drm-vc4-Disable-V3D-interactions-if-the-v3d-componen.patch +++ /dev/null @@ -1,167 +0,0 @@ -From ef816cd2c04e82d3b923cbb407025609fecd1205 Mon Sep 17 00:00:00 2001 -From: Eric Anholt <eric@anholt.net> -Date: Wed, 20 Feb 2019 13:03:41 -0800 -Subject: [PATCH 578/725] drm/vc4: Disable V3D interactions if the v3d - component didn't probe. - -One might want to use the VC4 display stack without using Mesa. -Similar to the debugfs fixes for not having all of the possible -display bits enabled, make sure you can't oops in vc4 if v3d isn't -enabled. - -Signed-off-by: Eric Anholt <eric@anholt.net> ---- - drivers/gpu/drm/vc4/vc4_drv.c | 11 +++++++++++ - drivers/gpu/drm/vc4/vc4_gem.c | 10 ++++++++++ - drivers/gpu/drm/vc4/vc4_irq.c | 9 +++++++++ - drivers/gpu/drm/vc4/vc4_perfmon.c | 18 ++++++++++++++++++ - 4 files changed, 48 insertions(+) - ---- a/drivers/gpu/drm/vc4/vc4_drv.c -+++ b/drivers/gpu/drm/vc4/vc4_drv.c -@@ -71,6 +71,9 @@ static int vc4_get_param_ioctl(struct dr - if (args->pad != 0) - return -EINVAL; - -+ if (!vc4->v3d) -+ return -EINVAL; -+ - switch (args->param) { - case DRM_VC4_PARAM_V3D_IDENT0: - ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev); -@@ -271,6 +274,7 @@ static int vc4_drm_bind(struct device *d - struct platform_device *pdev = to_platform_device(dev); - struct drm_device *drm; - struct vc4_dev *vc4; -+ struct device_node *node; - int ret = 0; - - dev->coherent_dma_mask = DMA_BIT_MASK(32); -@@ -279,6 +283,13 @@ static int vc4_drm_bind(struct device *d - if (!vc4) - return -ENOMEM; - -+ /* If VC4 V3D is missing, don't advertise render nodes. */ -+ node = of_find_compatible_node(NULL, NULL, "brcm,bcm2835-v3d"); -+ if (node) -+ of_node_put(node); -+ else -+ vc4_drm_driver.driver_features &= ~DRIVER_RENDER; -+ - drm = drm_dev_alloc(&vc4_drm_driver, dev); - if (IS_ERR(drm)) - return PTR_ERR(drm); ---- a/drivers/gpu/drm/vc4/vc4_gem.c -+++ b/drivers/gpu/drm/vc4/vc4_gem.c -@@ -74,6 +74,11 @@ vc4_get_hang_state_ioctl(struct drm_devi - u32 i; - int ret = 0; - -+ if (!vc4->v3d) { -+ DRM_DEBUG("VC4_GET_HANG_STATE with no VC4 V3D probed\n"); -+ return -EINVAL; -+ } -+ - spin_lock_irqsave(&vc4->job_lock, irqflags); - kernel_state = vc4->hang_state; - if (!kernel_state) { -@@ -1124,6 +1129,11 @@ vc4_submit_cl_ioctl(struct drm_device *d - struct dma_fence *in_fence; - int ret = 0; - -+ if (!vc4->v3d) { -+ DRM_DEBUG("VC4_SUBMIT_CL with no VC4 V3D probed\n"); -+ return -EINVAL; -+ } -+ - if ((args->flags & ~(VC4_SUBMIT_CL_USE_CLEAR_COLOR | - VC4_SUBMIT_CL_FIXED_RCL_ORDER | - VC4_SUBMIT_CL_RCL_ORDER_INCREASING_X | ---- a/drivers/gpu/drm/vc4/vc4_irq.c -+++ b/drivers/gpu/drm/vc4/vc4_irq.c -@@ -229,6 +229,9 @@ vc4_irq_preinstall(struct drm_device *de - { - struct vc4_dev *vc4 = to_vc4_dev(dev); - -+ if (!vc4->v3d) -+ return; -+ - init_waitqueue_head(&vc4->job_wait_queue); - INIT_WORK(&vc4->overflow_mem_work, vc4_overflow_mem_work); - -@@ -243,6 +246,9 @@ vc4_irq_postinstall(struct drm_device *d - { - struct vc4_dev *vc4 = to_vc4_dev(dev); - -+ if (!vc4->v3d) -+ return 0; -+ - /* Enable both the render done and out of memory interrupts. */ - V3D_WRITE(V3D_INTENA, V3D_DRIVER_IRQS); - -@@ -254,6 +260,9 @@ vc4_irq_uninstall(struct drm_device *dev - { - struct vc4_dev *vc4 = to_vc4_dev(dev); - -+ if (!vc4->v3d) -+ return; -+ - /* Disable sending interrupts for our driver's IRQs. */ - V3D_WRITE(V3D_INTDIS, V3D_DRIVER_IRQS); - ---- a/drivers/gpu/drm/vc4/vc4_perfmon.c -+++ b/drivers/gpu/drm/vc4/vc4_perfmon.c -@@ -100,12 +100,18 @@ void vc4_perfmon_close_file(struct vc4_f - int vc4_perfmon_create_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) - { -+ struct vc4_dev *vc4 = to_vc4_dev(dev); - struct vc4_file *vc4file = file_priv->driver_priv; - struct drm_vc4_perfmon_create *req = data; - struct vc4_perfmon *perfmon; - unsigned int i; - int ret; - -+ if (!vc4->v3d) { -+ DRM_DEBUG("Creating perfmon no VC4 V3D probed\n"); -+ return -EINVAL; -+ } -+ - /* Number of monitored counters cannot exceed HW limits. */ - if (req->ncounters > DRM_VC4_MAX_PERF_COUNTERS || - !req->ncounters) -@@ -146,10 +152,16 @@ int vc4_perfmon_create_ioctl(struct drm_ - int vc4_perfmon_destroy_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) - { -+ struct vc4_dev *vc4 = to_vc4_dev(dev); - struct vc4_file *vc4file = file_priv->driver_priv; - struct drm_vc4_perfmon_destroy *req = data; - struct vc4_perfmon *perfmon; - -+ if (!vc4->v3d) { -+ DRM_DEBUG("Destroying perfmon no VC4 V3D probed\n"); -+ return -EINVAL; -+ } -+ - mutex_lock(&vc4file->perfmon.lock); - perfmon = idr_remove(&vc4file->perfmon.idr, req->id); - mutex_unlock(&vc4file->perfmon.lock); -@@ -164,11 +176,17 @@ int vc4_perfmon_destroy_ioctl(struct drm - int vc4_perfmon_get_values_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) - { -+ struct vc4_dev *vc4 = to_vc4_dev(dev); - struct vc4_file *vc4file = file_priv->driver_priv; - struct drm_vc4_perfmon_get_values *req = data; - struct vc4_perfmon *perfmon; - int ret; - -+ if (!vc4->v3d) { -+ DRM_DEBUG("Getting perfmon no VC4 V3D probed\n"); -+ return -EINVAL; -+ } -+ - mutex_lock(&vc4file->perfmon.lock); - perfmon = idr_find(&vc4file->perfmon.idr, req->id); - vc4_perfmon_get(perfmon); |