diff options
Diffstat (limited to 'drivers/gpu/drm/imx')
| -rw-r--r-- | drivers/gpu/drm/imx/dw_hdmi-imx.c | 10 | ||||
| -rw-r--r-- | drivers/gpu/drm/imx/imx-drm-core.c | 44 | ||||
| -rw-r--r-- | drivers/gpu/drm/imx/imx-drm.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/imx/imx-ldb.c | 13 | ||||
| -rw-r--r-- | drivers/gpu/drm/imx/imx-tve.c | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/imx/ipuv3-crtc.c | 133 | ||||
| -rw-r--r-- | drivers/gpu/drm/imx/ipuv3-plane.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/imx/parallel-display.c | 8 |
8 files changed, 125 insertions, 95 deletions
diff --git a/drivers/gpu/drm/imx/dw_hdmi-imx.c b/drivers/gpu/drm/imx/dw_hdmi-imx.c index 063825fecbe2..2a95d10e9d92 100644 --- a/drivers/gpu/drm/imx/dw_hdmi-imx.c +++ b/drivers/gpu/drm/imx/dw_hdmi-imx.c @@ -109,13 +109,6 @@ static void dw_hdmi_imx_encoder_disable(struct drm_encoder *encoder) { } -static bool dw_hdmi_imx_encoder_mode_fixup(struct drm_encoder *encoder, - const struct drm_display_mode *mode, - struct drm_display_mode *adj_mode) -{ - return true; -} - static void dw_hdmi_imx_encoder_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode, struct drm_display_mode *adj_mode) @@ -125,7 +118,7 @@ static void dw_hdmi_imx_encoder_mode_set(struct drm_encoder *encoder, static void dw_hdmi_imx_encoder_commit(struct drm_encoder *encoder) { struct imx_hdmi *hdmi = container_of(encoder, struct imx_hdmi, encoder); - int mux = imx_drm_encoder_get_mux_id(hdmi->dev->of_node, encoder); + int mux = drm_of_encoder_active_port_id(hdmi->dev->of_node, encoder); regmap_update_bits(hdmi->regmap, IOMUXC_GPR3, IMX6Q_GPR3_HDMI_MUX_CTL_MASK, @@ -138,7 +131,6 @@ static void dw_hdmi_imx_encoder_prepare(struct drm_encoder *encoder) } static const struct drm_encoder_helper_funcs dw_hdmi_imx_encoder_helper_funcs = { - .mode_fixup = dw_hdmi_imx_encoder_mode_fixup, .mode_set = dw_hdmi_imx_encoder_mode_set, .prepare = dw_hdmi_imx_encoder_prepare, .commit = dw_hdmi_imx_encoder_commit, diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c index 2f57d7967417..9876e0f0c3e1 100644 --- a/drivers/gpu/drm/imx/imx-drm-core.c +++ b/drivers/gpu/drm/imx/imx-drm-core.c @@ -17,7 +17,6 @@ #include <linux/device.h> #include <linux/fb.h> #include <linux/module.h> -#include <linux/of_graph.h> #include <linux/platform_device.h> #include <drm/drmP.h> #include <drm/drm_fb_helper.h> @@ -171,18 +170,6 @@ static void imx_drm_disable_vblank(struct drm_device *drm, unsigned int pipe) imx_drm_crtc->imx_drm_helper_funcs.disable_vblank(imx_drm_crtc->crtc); } -static void imx_drm_driver_preclose(struct drm_device *drm, - struct drm_file *file) -{ - int i; - - if (!file->is_master) - return; - - for (i = 0; i < MAX_CRTC; i++) - imx_drm_disable_vblank(drm, i); -} - static const struct file_operations imx_drm_driver_fops = { .owner = THIS_MODULE, .open = drm_open, @@ -424,36 +411,6 @@ int imx_drm_encoder_parse_of(struct drm_device *drm, } EXPORT_SYMBOL_GPL(imx_drm_encoder_parse_of); -/* - * @node: device tree node containing encoder input ports - * @encoder: drm_encoder - */ -int imx_drm_encoder_get_mux_id(struct device_node *node, - struct drm_encoder *encoder) -{ - struct imx_drm_crtc *imx_crtc = imx_drm_find_crtc(encoder->crtc); - struct device_node *ep; - struct of_endpoint endpoint; - struct device_node *port; - int ret; - - if (!node || !imx_crtc) - return -EINVAL; - - for_each_endpoint_of_node(node, ep) { - port = of_graph_get_remote_port(ep); - of_node_put(port); - if (port == imx_crtc->crtc->port) { - ret = of_graph_parse_endpoint(ep, &endpoint); - of_node_put(ep); - return ret ? ret : endpoint.port; - } - } - - return -EINVAL; -} -EXPORT_SYMBOL_GPL(imx_drm_encoder_get_mux_id); - static const struct drm_ioctl_desc imx_drm_ioctls[] = { /* none so far */ }; @@ -463,7 +420,6 @@ static struct drm_driver imx_drm_driver = { .load = imx_drm_driver_load, .unload = imx_drm_driver_unload, .lastclose = imx_drm_driver_lastclose, - .preclose = imx_drm_driver_preclose, .set_busid = drm_platform_set_busid, .gem_free_object = drm_gem_cma_free_object, .gem_vm_ops = &drm_gem_cma_vm_ops, diff --git a/drivers/gpu/drm/imx/imx-drm.h b/drivers/gpu/drm/imx/imx-drm.h index 71cf6d9c714f..b0241b9d1334 100644 --- a/drivers/gpu/drm/imx/imx-drm.h +++ b/drivers/gpu/drm/imx/imx-drm.h @@ -46,8 +46,6 @@ int imx_drm_set_bus_format_pins(struct drm_encoder *encoder, int imx_drm_set_bus_format(struct drm_encoder *encoder, u32 bus_format); -int imx_drm_encoder_get_mux_id(struct device_node *node, - struct drm_encoder *encoder); int imx_drm_encoder_parse_of(struct drm_device *drm, struct drm_encoder *encoder, struct device_node *np); diff --git a/drivers/gpu/drm/imx/imx-ldb.c b/drivers/gpu/drm/imx/imx-ldb.c index 22ac482231ed..a58eee59550a 100644 --- a/drivers/gpu/drm/imx/imx-ldb.c +++ b/drivers/gpu/drm/imx/imx-ldb.c @@ -19,6 +19,7 @@ #include <drm/drmP.h> #include <drm/drm_fb_helper.h> #include <drm/drm_crtc_helper.h> +#include <drm/drm_of.h> #include <drm/drm_panel.h> #include <linux/mfd/syscon.h> #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h> @@ -139,13 +140,6 @@ static void imx_ldb_encoder_dpms(struct drm_encoder *encoder, int mode) { } -static bool imx_ldb_encoder_mode_fixup(struct drm_encoder *encoder, - const struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode) -{ - return true; -} - static void imx_ldb_set_clock(struct imx_ldb *ldb, int mux, int chno, unsigned long serial_clk, unsigned long di_clk) { @@ -215,7 +209,7 @@ static void imx_ldb_encoder_commit(struct drm_encoder *encoder) struct imx_ldb_channel *imx_ldb_ch = enc_to_imx_ldb_ch(encoder); struct imx_ldb *ldb = imx_ldb_ch->ldb; int dual = ldb->ldb_ctrl & LDB_SPLIT_MODE_EN; - int mux = imx_drm_encoder_get_mux_id(imx_ldb_ch->child, encoder); + int mux = drm_of_encoder_active_port_id(imx_ldb_ch->child, encoder); drm_panel_prepare(imx_ldb_ch->panel); @@ -265,7 +259,7 @@ static void imx_ldb_encoder_mode_set(struct drm_encoder *encoder, int dual = ldb->ldb_ctrl & LDB_SPLIT_MODE_EN; unsigned long serial_clk; unsigned long di_clk = mode->clock * 1000; - int mux = imx_drm_encoder_get_mux_id(imx_ldb_ch->child, encoder); + int mux = drm_of_encoder_active_port_id(imx_ldb_ch->child, encoder); if (mode->clock > 170000) { dev_warn(ldb->dev, @@ -376,7 +370,6 @@ static const struct drm_encoder_funcs imx_ldb_encoder_funcs = { static const struct drm_encoder_helper_funcs imx_ldb_encoder_helper_funcs = { .dpms = imx_ldb_encoder_dpms, - .mode_fixup = imx_ldb_encoder_mode_fixup, .prepare = imx_ldb_encoder_prepare, .commit = imx_ldb_encoder_commit, .mode_set = imx_ldb_encoder_mode_set, diff --git a/drivers/gpu/drm/imx/imx-tve.c b/drivers/gpu/drm/imx/imx-tve.c index 292349f0b132..ae7a9fb3b8a2 100644 --- a/drivers/gpu/drm/imx/imx-tve.c +++ b/drivers/gpu/drm/imx/imx-tve.c @@ -286,13 +286,6 @@ static void imx_tve_encoder_dpms(struct drm_encoder *encoder, int mode) dev_err(tve->dev, "failed to disable TVOUT: %d\n", ret); } -static bool imx_tve_encoder_mode_fixup(struct drm_encoder *encoder, - const struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode) -{ - return true; -} - static void imx_tve_encoder_prepare(struct drm_encoder *encoder) { struct imx_tve *tve = enc_to_tve(encoder); @@ -379,7 +372,6 @@ static const struct drm_encoder_funcs imx_tve_encoder_funcs = { static const struct drm_encoder_helper_funcs imx_tve_encoder_helper_funcs = { .dpms = imx_tve_encoder_dpms, - .mode_fixup = imx_tve_encoder_mode_fixup, .prepare = imx_tve_encoder_prepare, .mode_set = imx_tve_encoder_mode_set, .commit = imx_tve_encoder_commit, diff --git a/drivers/gpu/drm/imx/ipuv3-crtc.c b/drivers/gpu/drm/imx/ipuv3-crtc.c index 287226311413..dee8e8b3523b 100644 --- a/drivers/gpu/drm/imx/ipuv3-crtc.c +++ b/drivers/gpu/drm/imx/ipuv3-crtc.c @@ -22,6 +22,8 @@ #include <linux/fb.h> #include <linux/clk.h> #include <linux/errno.h> +#include <linux/reservation.h> +#include <linux/dma-buf.h> #include <drm/drm_gem_cma_helper.h> #include <drm/drm_fb_cma_helper.h> @@ -31,6 +33,23 @@ #define DRIVER_DESC "i.MX IPUv3 Graphics" +enum ipu_flip_status { + IPU_FLIP_NONE, + IPU_FLIP_PENDING, + IPU_FLIP_SUBMITTED, +}; + +struct ipu_flip_work { + struct work_struct unref_work; + struct drm_gem_object *bo; + struct drm_pending_vblank_event *page_flip_event; + struct work_struct fence_work; + struct ipu_crtc *crtc; + struct fence *excl; + unsigned shared_count; + struct fence **shared; +}; + struct ipu_crtc { struct device *dev; struct drm_crtc base; @@ -42,8 +61,9 @@ struct ipu_crtc { struct ipu_dc *dc; struct ipu_di *di; int enabled; - struct drm_pending_vblank_event *page_flip_event; - struct drm_framebuffer *newfb; + enum ipu_flip_status flip_state; + struct workqueue_struct *flip_queue; + struct ipu_flip_work *flip_work; int irq; u32 bus_format; int di_hsync_pin; @@ -104,15 +124,45 @@ static void ipu_crtc_dpms(struct drm_crtc *crtc, int mode) } } +static void ipu_flip_unref_work_func(struct work_struct *__work) +{ + struct ipu_flip_work *work = + container_of(__work, struct ipu_flip_work, unref_work); + + drm_gem_object_unreference_unlocked(work->bo); + kfree(work); +} + +static void ipu_flip_fence_work_func(struct work_struct *__work) +{ + struct ipu_flip_work *work = + container_of(__work, struct ipu_flip_work, fence_work); + int i; + + /* wait for all fences attached to the FB obj to signal */ + if (work->excl) { + fence_wait(work->excl, false); + fence_put(work->excl); + } + for (i = 0; i < work->shared_count; i++) { + fence_wait(work->shared[i], false); + fence_put(work->shared[i]); + } + + work->crtc->flip_state = IPU_FLIP_SUBMITTED; +} + static int ipu_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb, struct drm_pending_vblank_event *event, uint32_t page_flip_flags) { + struct drm_gem_cma_object *cma_obj = drm_fb_cma_get_gem_obj(fb, 0); struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc); + struct ipu_flip_work *flip_work; int ret; - if (ipu_crtc->newfb) + if (ipu_crtc->flip_state != IPU_FLIP_NONE) return -EBUSY; ret = imx_drm_crtc_vblank_get(ipu_crtc->imx_crtc); @@ -123,11 +173,58 @@ static int ipu_page_flip(struct drm_crtc *crtc, return ret; } - ipu_crtc->newfb = fb; - ipu_crtc->page_flip_event = event; - crtc->primary->fb = fb; + flip_work = kzalloc(sizeof *flip_work, GFP_KERNEL); + if (!flip_work) { + ret = -ENOMEM; + goto put_vblank; + } + INIT_WORK(&flip_work->unref_work, ipu_flip_unref_work_func); + flip_work->page_flip_event = event; + + /* get BO backing the old framebuffer and take a reference */ + flip_work->bo = &drm_fb_cma_get_gem_obj(crtc->primary->fb, 0)->base; + drm_gem_object_reference(flip_work->bo); + + ipu_crtc->flip_work = flip_work; + /* + * If the object has a DMABUF attached, we need to wait on its fences + * if there are any. + */ + if (cma_obj->base.dma_buf) { + INIT_WORK(&flip_work->fence_work, ipu_flip_fence_work_func); + flip_work->crtc = ipu_crtc; + + ret = reservation_object_get_fences_rcu( + cma_obj->base.dma_buf->resv, &flip_work->excl, + &flip_work->shared_count, &flip_work->shared); + + if (unlikely(ret)) { + DRM_ERROR("failed to get fences for buffer\n"); + goto free_flip_work; + } + + /* No need to queue the worker if the are no fences */ + if (!flip_work->excl && !flip_work->shared_count) { + ipu_crtc->flip_state = IPU_FLIP_SUBMITTED; + } else { + ipu_crtc->flip_state = IPU_FLIP_PENDING; + queue_work(ipu_crtc->flip_queue, + &flip_work->fence_work); + } + } else { + ipu_crtc->flip_state = IPU_FLIP_SUBMITTED; + } return 0; + +free_flip_work: + drm_gem_object_unreference_unlocked(flip_work->bo); + kfree(flip_work); + ipu_crtc->flip_work = NULL; +put_vblank: + imx_drm_crtc_vblank_put(ipu_crtc->imx_crtc); + + return ret; } static const struct drm_crtc_funcs ipu_crtc_funcs = { @@ -211,12 +308,12 @@ static void ipu_crtc_handle_pageflip(struct ipu_crtc *ipu_crtc) { unsigned long flags; struct drm_device *drm = ipu_crtc->base.dev; + struct ipu_flip_work *work = ipu_crtc->flip_work; spin_lock_irqsave(&drm->event_lock, flags); - if (ipu_crtc->page_flip_event) + if (work->page_flip_event) drm_crtc_send_vblank_event(&ipu_crtc->base, - ipu_crtc->page_flip_event); - ipu_crtc->page_flip_event = NULL; + work->page_flip_event); imx_drm_crtc_vblank_put(ipu_crtc->imx_crtc); spin_unlock_irqrestore(&drm->event_lock, flags); } @@ -227,13 +324,15 @@ static irqreturn_t ipu_irq_handler(int irq, void *dev_id) imx_drm_handle_vblank(ipu_crtc->imx_crtc); - if (ipu_crtc->newfb) { + if (ipu_crtc->flip_state == IPU_FLIP_SUBMITTED) { struct ipu_plane *plane = ipu_crtc->plane[0]; - ipu_crtc->newfb = NULL; ipu_plane_set_base(plane, ipu_crtc->base.primary->fb, plane->x, plane->y); ipu_crtc_handle_pageflip(ipu_crtc); + queue_work(ipu_crtc->flip_queue, + &ipu_crtc->flip_work->unref_work); + ipu_crtc->flip_state = IPU_FLIP_NONE; } return IRQ_HANDLED; @@ -282,6 +381,10 @@ static const struct drm_crtc_helper_funcs ipu_helper_funcs = { static int ipu_enable_vblank(struct drm_crtc *crtc) { + struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc); + + enable_irq(ipu_crtc->irq); + return 0; } @@ -289,8 +392,7 @@ static void ipu_disable_vblank(struct drm_crtc *crtc) { struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc); - ipu_crtc->page_flip_event = NULL; - ipu_crtc->newfb = NULL; + disable_irq_nosync(ipu_crtc->irq); } static int ipu_set_interface_pix_fmt(struct drm_crtc *crtc, @@ -401,6 +503,10 @@ static int ipu_crtc_init(struct ipu_crtc *ipu_crtc, dev_err(ipu_crtc->dev, "irq request failed with %d.\n", ret); goto err_put_plane_res; } + /* Only enable IRQ when we actually need it to trigger work. */ + disable_irq(ipu_crtc->irq); + + ipu_crtc->flip_queue = create_singlethread_workqueue("ipu-crtc-flip"); return 0; @@ -443,6 +549,7 @@ static void ipu_drm_unbind(struct device *dev, struct device *master, imx_drm_remove_crtc(ipu_crtc->imx_crtc); + destroy_workqueue(ipu_crtc->flip_queue); ipu_plane_put_resources(ipu_crtc->plane[0]); ipu_put_resources(ipu_crtc); } diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c index 26bb1b626fe3..588827844f30 100644 --- a/drivers/gpu/drm/imx/ipuv3-plane.c +++ b/drivers/gpu/drm/imx/ipuv3-plane.c @@ -339,7 +339,7 @@ static int ipu_update_plane(struct drm_plane *plane, struct drm_crtc *crtc, } if (crtc != plane->crtc) - dev_info(plane->dev->dev, "crtc change: %p -> %p\n", + dev_dbg(plane->dev->dev, "crtc change: %p -> %p\n", plane->crtc, crtc); plane->crtc = crtc; diff --git a/drivers/gpu/drm/imx/parallel-display.c b/drivers/gpu/drm/imx/parallel-display.c index 0ffef172afb4..363e2c7741e2 100644 --- a/drivers/gpu/drm/imx/parallel-display.c +++ b/drivers/gpu/drm/imx/parallel-display.c @@ -112,13 +112,6 @@ static void imx_pd_encoder_dpms(struct drm_encoder *encoder, int mode) drm_panel_enable(imxpd->panel); } -static bool imx_pd_encoder_mode_fixup(struct drm_encoder *encoder, - const struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode) -{ - return true; -} - static void imx_pd_encoder_prepare(struct drm_encoder *encoder) { struct imx_parallel_display *imxpd = enc_to_imxpd(encoder); @@ -166,7 +159,6 @@ static const struct drm_encoder_funcs imx_pd_encoder_funcs = { static const struct drm_encoder_helper_funcs imx_pd_encoder_helper_funcs = { .dpms = imx_pd_encoder_dpms, - .mode_fixup = imx_pd_encoder_mode_fixup, .prepare = imx_pd_encoder_prepare, .commit = imx_pd_encoder_commit, .mode_set = imx_pd_encoder_mode_set, |