From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752292AbdAYVib (ORCPT ); Wed, 25 Jan 2017 16:38:31 -0500 Received: from mail-lf0-f47.google.com ([209.85.215.47]:35485 "EHLO mail-lf0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751690AbdAYVia (ORCPT ); Wed, 25 Jan 2017 16:38:30 -0500 From: Sergei Shtylyov To: laurent.pinchart@ideasonboard.com, airlied@linux.ie, dri-devel@lists.freedesktop.org Cc: linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 3/3] drm: rcar-du: Add VSP1 live source support Date: Thu, 26 Jan 2017 00:38:26 +0300 Message-ID: <2606258.J5UQyLyQ6T@wasted.cogentembedded.com> Organization: Cogent Embedded Inc. User-Agent: KMail/4.14.10 (Linux/4.8.13-100.fc23.x86_64; KDE/4.14.20; x86_64; ; ) In-Reply-To: <1542778.dcWpka5Jpx@wasted.cogentembedded.com> References: <1542778.dcWpka5Jpx@wasted.cogentembedded.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Laurent Pinchart Register live sources for VSPD0 and VSPD1 and configure the plane source at plane setup time to source frames from memory or from the VSP1. [Sergei: ported to the modern kernel.] Signed-off-by: Laurent Pinchart Signed-off-by: Sergei Shtylyov --- Changes in version 3: - ported the patch to the modern kernel; - reformatted rcar_du_live_fb_create_handle()/rcar_du_live_fb_create()'s parameter lists; - added my signoff. drivers/gpu/drm/rcar-du/rcar_du_drv.c | 6 +- drivers/gpu/drm/rcar-du/rcar_du_kms.c | 77 +++++++++++++++++++++++++++++++ drivers/gpu/drm/rcar-du/rcar_du_kms.h | 3 + drivers/gpu/drm/rcar-du/rcar_du_plane.c | 79 +++++++++++++++++++++++++++++++- drivers/gpu/drm/rcar-du/rcar_du_plane.h | 3 + 5 files changed, 164 insertions(+), 4 deletions(-) Index: linux/drivers/gpu/drm/rcar-du/rcar_du_drv.c =================================================================== --- linux.orig/drivers/gpu/drm/rcar-du/rcar_du_drv.c +++ linux/drivers/gpu/drm/rcar-du/rcar_du_drv.c @@ -60,7 +60,8 @@ static const struct rcar_du_device_info static const struct rcar_du_device_info rcar_du_r8a7790_info = { .gen = 2, .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK - | RCAR_DU_FEATURE_EXT_CTRL_REGS, + | RCAR_DU_FEATURE_EXT_CTRL_REGS + | RCAR_DU_FEATURE_VSP1_SOURCE, .quirks = RCAR_DU_QUIRK_ALIGN_128B | RCAR_DU_QUIRK_LVDS_LANES, .num_crtcs = 3, .routes = { @@ -90,7 +91,8 @@ static const struct rcar_du_device_info static const struct rcar_du_device_info rcar_du_r8a7791_info = { .gen = 2, .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK - | RCAR_DU_FEATURE_EXT_CTRL_REGS, + | RCAR_DU_FEATURE_EXT_CTRL_REGS + | RCAR_DU_FEATURE_VSP1_SOURCE, .num_crtcs = 2, .routes = { /* R8A779[13] has one RGB output, one LVDS output and one Index: linux/drivers/gpu/drm/rcar-du/rcar_du_kms.c =================================================================== --- linux.orig/drivers/gpu/drm/rcar-du/rcar_du_kms.c +++ linux/drivers/gpu/drm/rcar-du/rcar_du_kms.c @@ -166,6 +166,74 @@ int rcar_du_dumb_create(struct drm_file return drm_gem_cma_dumb_create_internal(file, dev, args); } +struct rcar_du_live_framebuffer { + struct drm_framebuffer fb; + struct drm_live_source *src; +}; + +#define to_live_fb(fb) container_of(fb, struct rcar_du_live_framebuffer, fb) + +struct drm_live_source *rcar_du_live_fb_source(struct drm_framebuffer *fb) +{ + return fb->flags & DRM_MODE_FB_LIVE_SOURCE ? to_live_fb(fb)->src : NULL; +} + +static void rcar_du_live_fb_destroy(struct drm_framebuffer *fb) +{ + struct rcar_du_live_framebuffer *live_fb = to_live_fb(fb); + + drm_framebuffer_cleanup(fb); + kfree(live_fb); +} + +static int rcar_du_live_fb_create_handle(struct drm_framebuffer *fb, + struct drm_file *file_priv, + unsigned int *handle) +{ + *handle = 0; + return 0; +} + +static struct drm_framebuffer_funcs rcar_du_live_fb_funcs = { + .destroy = rcar_du_live_fb_destroy, + .create_handle = rcar_du_live_fb_create_handle, +}; + +static struct drm_framebuffer * +rcar_du_live_fb_create(struct drm_device *dev, struct drm_file *file_priv, + const struct drm_mode_fb_cmd2 *mode_cmd) +{ + struct rcar_du_live_framebuffer *fb; + struct drm_mode_object *obj; + struct drm_live_source *src; + int ret; + + obj = drm_mode_object_find(dev, mode_cmd->handles[0], + DRM_MODE_OBJECT_LIVE_SOURCE); + if (!obj) + return ERR_PTR(-EINVAL); + + src = obj_to_live_source(obj); + + fb = kzalloc(sizeof(*fb), GFP_KERNEL); + if (!fb) + return ERR_PTR(-ENOMEM); + + drm_helper_mode_fill_fb_struct(dev, &fb->fb, mode_cmd); + + fb->src = src; + + ret = drm_framebuffer_init(dev, &fb->fb, &rcar_du_live_fb_funcs); + if (ret) { + dev_err(dev->dev, "Failed to initialize framebuffer: %d\n", + ret); + kfree(fb); + return ERR_PTR(ret); + } + + return &fb->fb; +} + static struct drm_framebuffer * rcar_du_fb_create(struct drm_device *dev, struct drm_file *file_priv, const struct drm_mode_fb_cmd2 *mode_cmd) @@ -177,6 +245,9 @@ rcar_du_fb_create(struct drm_device *dev unsigned int bpp; unsigned int i; + if (mode_cmd->flags & DRM_MODE_FB_LIVE_SOURCE) + return rcar_du_live_fb_create(dev, file_priv, mode_cmd); + format = rcar_du_format_info(mode_cmd->pixel_format); if (format == NULL) { dev_dbg(dev->dev, "unsupported pixel format %08x\n", @@ -659,6 +730,12 @@ int rcar_du_modeset_init(struct rcar_du_ drm_mode_config_reset(dev); + if (rcar_du_has(rcdu, RCAR_DU_FEATURE_VSP1_SOURCE)) { + ret = rcar_du_vsp1_sources_init(rcdu); + if (ret < 0) + return ret; + } + drm_kms_helper_poll_init(dev); if (dev->mode_config.num_connector) { Index: linux/drivers/gpu/drm/rcar-du/rcar_du_kms.h =================================================================== --- linux.orig/drivers/gpu/drm/rcar-du/rcar_du_kms.h +++ linux/drivers/gpu/drm/rcar-du/rcar_du_kms.h @@ -18,6 +18,7 @@ struct drm_file; struct drm_device; +struct drm_live_source; struct drm_mode_create_dumb; struct rcar_du_device; @@ -36,4 +37,6 @@ int rcar_du_modeset_init(struct rcar_du_ int rcar_du_dumb_create(struct drm_file *file, struct drm_device *dev, struct drm_mode_create_dumb *args); +struct drm_live_source *rcar_du_live_fb_source(struct drm_framebuffer *fb); + #endif /* __RCAR_DU_KMS_H__ */ Index: linux/drivers/gpu/drm/rcar-du/rcar_du_plane.c =================================================================== --- linux.orig/drivers/gpu/drm/rcar-du/rcar_du_plane.c +++ linux/drivers/gpu/drm/rcar-du/rcar_du_plane.c @@ -27,6 +27,71 @@ #include "rcar_du_regs.h" /* ----------------------------------------------------------------------------- + * Live Sources + */ + +struct rcar_du_vsp1_source { + struct drm_live_source base; + + enum rcar_du_plane_source source; +}; + +static inline struct rcar_du_vsp1_source * +to_rcar_vsp1_source(struct drm_live_source *src) +{ + return container_of(src, struct rcar_du_vsp1_source, base); +} + +static const struct drm_live_source_funcs rcar_du_live_source_funcs = { + .destroy = drm_live_source_cleanup, +}; + +static const uint32_t source_formats[] = { + DRM_FORMAT_XRGB8888, +}; + +int rcar_du_vsp1_sources_init(struct rcar_du_device *rcdu) +{ + static const struct { + enum rcar_du_plane_source source; + unsigned int planes; + } sources[] = { + { RCAR_DU_PLANE_VSPD0, BIT(RCAR_DU_NUM_KMS_PLANES - 1) }, + { RCAR_DU_PLANE_VSPD1, BIT(RCAR_DU_NUM_KMS_PLANES - 2) | + BIT(2 * RCAR_DU_NUM_KMS_PLANES - 1) }, + }; + unsigned int planes_mask; + unsigned int num_planes; + unsigned int i; + + num_planes = RCAR_DU_NUM_KMS_PLANES * DIV_ROUND_UP(rcdu->num_crtcs, 2); + planes_mask = (1 << num_planes) - 1; + + for (i = 0; i < ARRAY_SIZE(sources); ++i) { + struct rcar_du_vsp1_source *src; + char name[6]; + int ret; + + src = devm_kzalloc(rcdu->dev, sizeof(*src), GFP_KERNEL); + if (src == NULL) + return -ENOMEM; + + src->source = sources[i].source; + + sprintf(name, "vspd%u", i); + ret = drm_live_source_init(rcdu->ddev, &src->base, name, + sources[i].planes & planes_mask, + source_formats, + ARRAY_SIZE(source_formats), + &rcar_du_live_source_funcs); + if (ret < 0) + return ret; + } + + return 0; +} + +/* ----------------------------------------------------------------------------- * Atomic hardware plane allocator * * The hardware plane allocator is solely based on the atomic plane states @@ -555,6 +620,7 @@ static int rcar_du_plane_atomic_check(st struct rcar_du_plane_state *rstate = to_rcar_plane_state(state); struct rcar_du_plane *rplane = to_rcar_plane(plane); struct rcar_du_device *rcdu = rplane->group->dev; + uint32_t pixel_format; if (!state->fb || !state->crtc) { rstate->format = NULL; @@ -567,13 +633,22 @@ static int rcar_du_plane_atomic_check(st return -EINVAL; } - rstate->format = rcar_du_format_info(state->fb->format->format); + pixel_format = state->fb->format->format; + rstate->format = rcar_du_format_info(pixel_format); if (rstate->format == NULL) { dev_dbg(rcdu->dev, "%s: unsupported format %08x\n", __func__, - state->fb->format->format); + pixel_format); return -EINVAL; } + if (state->fb->flags & DRM_MODE_FB_LIVE_SOURCE) { + struct drm_live_source *src = rcar_du_live_fb_source(state->fb); + + rstate->source = to_rcar_vsp1_source(src)->source; + } else { + rstate->source = RCAR_DU_PLANE_MEMORY; + } + return 0; } Index: linux/drivers/gpu/drm/rcar-du/rcar_du_plane.h =================================================================== --- linux.orig/drivers/gpu/drm/rcar-du/rcar_du_plane.h +++ linux/drivers/gpu/drm/rcar-du/rcar_du_plane.h @@ -17,6 +17,7 @@ #include #include +struct rcar_du_device; struct rcar_du_format_info; struct rcar_du_group; @@ -72,6 +73,8 @@ to_rcar_plane_state(struct drm_plane_sta int rcar_du_atomic_check_planes(struct drm_device *dev, struct drm_atomic_state *state); +int rcar_du_vsp1_sources_init(struct rcar_du_device *rcdu); + int rcar_du_planes_init(struct rcar_du_group *rgrp); void __rcar_du_plane_setup(struct rcar_du_group *rgrp,