mdp/mdp4/mdp4_irq.o \
mdp/mdp4/mdp4_kms.o \
mdp/mdp4/mdp4_plane.o \
+ mdp/mdp5/mdp5_crtc.o \
+ mdp/mdp5/mdp5_encoder.o \
+ mdp/mdp5/mdp5_irq.o \
+ mdp/mdp5/mdp5_kms.o \
+ mdp/mdp5/mdp5_plane.o \
+ mdp/mdp5/mdp5_smp.o \
msm_drv.o \
msm_fb.o \
msm_gem.o \
display controller blocks at play:
+ MDP3 - ?? seems to be what is on geeksphone peak device
+ MDP4 - S3 (APQ8060, touchpad), S4-pro (APQ8064, nexus4 & ifc6410)
- + MDSS - snapdragon 800
+ + MDP5 - snapdragon 800
(I don't have a completely clear picture on which display controller
maps to which part #)
may have their own irqs which they install themselves. For this reason
the display controller is the "master" device.
+For MDP5, the mapping is:
+
+ plane -> PIPE{RGBn,VIGn} \
+ crtc -> LM (layer mixer) |-> MDP "device"
+ encoder -> INTF /
+ connector -> HDMI/DSI/eDP/etc --> other device(s)
+
+Unlike MDP4, it appears we can get by with a single encoder, rather
+than needing a different implementation for DTV, DSI, etc. (Ie. the
+register interface is same, just different bases.)
+
+Also unlike MDP4, with MDP5 all the IRQs for other blocks (HDMI, DSI,
+etc) are routed through MDP.
+
+And finally, MDP5 has this "Shared Memory Pool" (called "SMP"), from
+which blocks need to be allocated to the active pipes based on fetch
+stride.
+
Each connector probably ends up being a separate device, just for the
logistics of finding/mapping io region, irq, etc. Idealy we would
have a better way than just stashing the platform device in a global
--- /dev/null
+/*
+ * Copyright (C) 2013 Red Hat
+ * Author: Rob Clark <robdclark@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "mdp5_kms.h"
+
+#include <drm/drm_mode.h>
+#include "drm_crtc.h"
+#include "drm_crtc_helper.h"
+#include "drm_flip_work.h"
+
+struct mdp5_crtc {
+ struct drm_crtc base;
+ char name[8];
+ struct drm_plane *plane;
+ struct drm_plane *planes[8];
+ int id;
+ bool enabled;
+
+ /* which mixer/encoder we route output to: */
+ int mixer;
+
+ /* if there is a pending flip, these will be non-null: */
+ struct drm_pending_vblank_event *event;
+ struct msm_fence_cb pageflip_cb;
+
+#define PENDING_CURSOR 0x1
+#define PENDING_FLIP 0x2
+ atomic_t pending;
+
+ /* the fb that we logically (from PoV of KMS API) hold a ref
+ * to. Which we may not yet be scanning out (we may still
+ * be scanning out previous in case of page_flip while waiting
+ * for gpu rendering to complete:
+ */
+ struct drm_framebuffer *fb;
+
+ /* the fb that we currently hold a scanout ref to: */
+ struct drm_framebuffer *scanout_fb;
+
+ /* for unref'ing framebuffers after scanout completes: */
+ struct drm_flip_work unref_fb_work;
+
+ struct mdp_irq vblank;
+ struct mdp_irq err;
+};
+#define to_mdp5_crtc(x) container_of(x, struct mdp5_crtc, base)
+
+static struct mdp5_kms *get_kms(struct drm_crtc *crtc)
+{
+ struct msm_drm_private *priv = crtc->dev->dev_private;
+ return to_mdp5_kms(to_mdp_kms(priv->kms));
+}
+
+static void request_pending(struct drm_crtc *crtc, uint32_t pending)
+{
+ struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+
+ atomic_or(pending, &mdp5_crtc->pending);
+ mdp_irq_register(&get_kms(crtc)->base, &mdp5_crtc->vblank);
+}
+
+static void crtc_flush(struct drm_crtc *crtc)
+{
+ struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+ struct mdp5_kms *mdp5_kms = get_kms(crtc);
+ int id = mdp5_crtc->id;
+ uint32_t i, flush = 0;
+
+ for (i = 0; i < ARRAY_SIZE(mdp5_crtc->planes); i++) {
+ struct drm_plane *plane = mdp5_crtc->planes[i];
+ if (plane) {
+ enum mdp5_pipe pipe = mdp5_plane_pipe(plane);
+ flush |= pipe2flush(pipe);
+ }
+ }
+ flush |= mixer2flush(mdp5_crtc->id);
+ flush |= MDP5_CTL_FLUSH_CTL;
+
+ DBG("%s: flush=%08x", mdp5_crtc->name, flush);
+
+ mdp5_write(mdp5_kms, REG_MDP5_CTL_FLUSH(id), flush);
+}
+
+static void update_fb(struct drm_crtc *crtc, struct drm_framebuffer *new_fb)
+{
+ struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+ struct drm_framebuffer *old_fb = mdp5_crtc->fb;
+
+ /* grab reference to incoming scanout fb: */
+ drm_framebuffer_reference(new_fb);
+ mdp5_crtc->base.fb = new_fb;
+ mdp5_crtc->fb = new_fb;
+
+ if (old_fb)
+ drm_flip_work_queue(&mdp5_crtc->unref_fb_work, old_fb);
+}
+
+/* unlike update_fb(), take a ref to the new scanout fb *before* updating
+ * plane, then call this. Needed to ensure we don't unref the buffer that
+ * is actually still being scanned out.
+ *
+ * Note that this whole thing goes away with atomic.. since we can defer
+ * calling into driver until rendering is done.
+ */
+static void update_scanout(struct drm_crtc *crtc, struct drm_framebuffer *fb)
+{
+ struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+
+ /* flush updates, to make sure hw is updated to new scanout fb,
+ * so that we can safely queue unref to current fb (ie. next
+ * vblank we know hw is done w/ previous scanout_fb).
+ */
+ crtc_flush(crtc);
+
+ if (mdp5_crtc->scanout_fb)
+ drm_flip_work_queue(&mdp5_crtc->unref_fb_work,
+ mdp5_crtc->scanout_fb);
+
+ mdp5_crtc->scanout_fb = fb;
+
+ /* enable vblank to complete flip: */
+ request_pending(crtc, PENDING_FLIP);
+}
+
+/* if file!=NULL, this is preclose potential cancel-flip path */
+static void complete_flip(struct drm_crtc *crtc, struct drm_file *file)
+{
+ struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+ struct drm_device *dev = crtc->dev;
+ struct drm_pending_vblank_event *event;
+ unsigned long flags, i;
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+ event = mdp5_crtc->event;
+ if (event) {
+ /* if regular vblank case (!file) or if cancel-flip from
+ * preclose on file that requested flip, then send the
+ * event:
+ */
+ if (!file || (event->base.file_priv == file)) {
+ mdp5_crtc->event = NULL;
+ drm_send_vblank_event(dev, mdp5_crtc->id, event);
+ }
+ }
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+
+ for (i = 0; i < ARRAY_SIZE(mdp5_crtc->planes); i++) {
+ struct drm_plane *plane = mdp5_crtc->planes[i];
+ if (plane)
+ mdp5_plane_complete_flip(plane);
+ }
+}
+
+static void pageflip_cb(struct msm_fence_cb *cb)
+{
+ struct mdp5_crtc *mdp5_crtc =
+ container_of(cb, struct mdp5_crtc, pageflip_cb);
+ struct drm_crtc *crtc = &mdp5_crtc->base;
+ struct drm_framebuffer *fb = mdp5_crtc->fb;
+
+ if (!fb)
+ return;
+
+ drm_framebuffer_reference(fb);
+ mdp5_plane_set_scanout(mdp5_crtc->plane, fb);
+ update_scanout(crtc, fb);
+}
+
+static void unref_fb_worker(struct drm_flip_work *work, void *val)
+{
+ struct mdp5_crtc *mdp5_crtc =
+ container_of(work, struct mdp5_crtc, unref_fb_work);
+ struct drm_device *dev = mdp5_crtc->base.dev;
+
+ mutex_lock(&dev->mode_config.mutex);
+ drm_framebuffer_unreference(val);
+ mutex_unlock(&dev->mode_config.mutex);
+}
+
+static void mdp5_crtc_destroy(struct drm_crtc *crtc)
+{
+ struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+
+ mdp5_crtc->plane->funcs->destroy(mdp5_crtc->plane);
+
+ drm_crtc_cleanup(crtc);
+ drm_flip_work_cleanup(&mdp5_crtc->unref_fb_work);
+
+ kfree(mdp5_crtc);
+}
+
+static void mdp5_crtc_dpms(struct drm_crtc *crtc, int mode)
+{
+ struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+ struct mdp5_kms *mdp5_kms = get_kms(crtc);
+ bool enabled = (mode == DRM_MODE_DPMS_ON);
+
+ DBG("%s: mode=%d", mdp5_crtc->name, mode);
+
+ if (enabled != mdp5_crtc->enabled) {
+ if (enabled) {
+ mdp5_enable(mdp5_kms);
+ mdp_irq_register(&mdp5_kms->base, &mdp5_crtc->err);
+ } else {
+ mdp_irq_unregister(&mdp5_kms->base, &mdp5_crtc->err);
+ mdp5_disable(mdp5_kms);
+ }
+ mdp5_crtc->enabled = enabled;
+ }
+}
+
+static bool mdp5_crtc_mode_fixup(struct drm_crtc *crtc,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ return true;
+}
+
+static void blend_setup(struct drm_crtc *crtc)
+{
+ struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+ struct mdp5_kms *mdp5_kms = get_kms(crtc);
+ int id = mdp5_crtc->id;
+
+ /*
+ * Hard-coded setup for now until I figure out how the
+ * layer-mixer works
+ */
+
+ /* LM[id]: */
+ mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(id),
+ MDP5_LM_BLEND_COLOR_OUT_STAGE0_FG_ALPHA);
+ mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_OP_MODE(id, 0),
+ MDP5_LM_BLEND_OP_MODE_FG_ALPHA(FG_CONST) |
+ MDP5_LM_BLEND_OP_MODE_BG_ALPHA(FG_PIXEL) |
+ MDP5_LM_BLEND_OP_MODE_BG_INV_ALPHA);
+ mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_FG_ALPHA(id, 0), 0xff);
+ mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_BG_ALPHA(id, 0), 0x00);
+
+ /* NOTE: seems that LM[n] and CTL[m], we do not need n==m.. but
+ * we want to be setting CTL[m].LAYER[n]. Not sure what the
+ * point of having CTL[m].LAYER[o] (for o!=n).. maybe that is
+ * used when chaining up mixers for high resolution displays?
+ */
+
+ /* CTL[id]: */
+ mdp5_write(mdp5_kms, REG_MDP5_CTL_LAYER_REG(id, 0),
+ MDP5_CTL_LAYER_REG_RGB0(STAGE0) |
+ MDP5_CTL_LAYER_REG_BORDER_COLOR);
+ mdp5_write(mdp5_kms, REG_MDP5_CTL_LAYER_REG(id, 1), 0);
+ mdp5_write(mdp5_kms, REG_MDP5_CTL_LAYER_REG(id, 2), 0);
+ mdp5_write(mdp5_kms, REG_MDP5_CTL_LAYER_REG(id, 3), 0);
+ mdp5_write(mdp5_kms, REG_MDP5_CTL_LAYER_REG(id, 4), 0);
+}
+
+static int mdp5_crtc_mode_set(struct drm_crtc *crtc,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode,
+ int x, int y,
+ struct drm_framebuffer *old_fb)
+{
+ struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+ struct mdp5_kms *mdp5_kms = get_kms(crtc);
+ int ret;
+
+ mode = adjusted_mode;
+
+ DBG("%s: set mode: %d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x",
+ mdp5_crtc->name, mode->base.id, mode->name,
+ mode->vrefresh, mode->clock,
+ mode->hdisplay, mode->hsync_start,
+ mode->hsync_end, mode->htotal,
+ mode->vdisplay, mode->vsync_start,
+ mode->vsync_end, mode->vtotal,
+ mode->type, mode->flags);
+
+ /* grab extra ref for update_scanout() */
+ drm_framebuffer_reference(crtc->fb);
+
+ ret = mdp5_plane_mode_set(mdp5_crtc->plane, crtc, crtc->fb,
+ 0, 0, mode->hdisplay, mode->vdisplay,
+ x << 16, y << 16,
+ mode->hdisplay << 16, mode->vdisplay << 16);
+ if (ret) {
+ dev_err(crtc->dev->dev, "%s: failed to set mode on plane: %d\n",
+ mdp5_crtc->name, ret);
+ return ret;
+ }
+
+ mdp5_write(mdp5_kms, REG_MDP5_LM_OUT_SIZE(mdp5_crtc->id),
+ MDP5_LM_OUT_SIZE_WIDTH(mode->hdisplay) |
+ MDP5_LM_OUT_SIZE_HEIGHT(mode->vdisplay));
+
+ update_fb(crtc, crtc->fb);
+ update_scanout(crtc, crtc->fb);
+
+ return 0;
+}
+
+static void mdp5_crtc_prepare(struct drm_crtc *crtc)
+{
+ struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+ DBG("%s", mdp5_crtc->name);
+ /* make sure we hold a ref to mdp clks while setting up mode: */
+ mdp5_enable(get_kms(crtc));
+ mdp5_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
+}
+
+static void mdp5_crtc_commit(struct drm_crtc *crtc)
+{
+ mdp5_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
+ crtc_flush(crtc);
+ /* drop the ref to mdp clk's that we got in prepare: */
+ mdp5_disable(get_kms(crtc));
+}
+
+static int mdp5_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
+ struct drm_framebuffer *old_fb)
+{
+ struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+ struct drm_plane *plane = mdp5_crtc->plane;
+ struct drm_display_mode *mode = &crtc->mode;
+ int ret;
+
+ /* grab extra ref for update_scanout() */
+ drm_framebuffer_reference(crtc->fb);
+
+ ret = mdp5_plane_mode_set(plane, crtc, crtc->fb,
+ 0, 0, mode->hdisplay, mode->vdisplay,
+ x << 16, y << 16,
+ mode->hdisplay << 16, mode->vdisplay << 16);
+
+ update_fb(crtc, crtc->fb);
+ update_scanout(crtc, crtc->fb);
+
+ return ret;
+}
+
+static void mdp5_crtc_load_lut(struct drm_crtc *crtc)
+{
+}
+
+static int mdp5_crtc_page_flip(struct drm_crtc *crtc,
+ struct drm_framebuffer *new_fb,
+ struct drm_pending_vblank_event *event,
+ uint32_t page_flip_flags)
+{
+ struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+ struct drm_device *dev = crtc->dev;
+ struct drm_gem_object *obj;
+ unsigned long flags;
+
+ if (mdp5_crtc->event) {
+ dev_err(dev->dev, "already pending flip!\n");
+ return -EBUSY;
+ }
+
+ obj = msm_framebuffer_bo(new_fb, 0);
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+ mdp5_crtc->event = event;
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+
+ update_fb(crtc, new_fb);
+
+ return msm_gem_queue_inactive_cb(obj, &mdp5_crtc->pageflip_cb);
+}
+
+static int mdp5_crtc_set_property(struct drm_crtc *crtc,
+ struct drm_property *property, uint64_t val)
+{
+ // XXX
+ return -EINVAL;
+}
+
+static const struct drm_crtc_funcs mdp5_crtc_funcs = {
+ .set_config = drm_crtc_helper_set_config,
+ .destroy = mdp5_crtc_destroy,
+ .page_flip = mdp5_crtc_page_flip,
+ .set_property = mdp5_crtc_set_property,
+};
+
+static const struct drm_crtc_helper_funcs mdp5_crtc_helper_funcs = {
+ .dpms = mdp5_crtc_dpms,
+ .mode_fixup = mdp5_crtc_mode_fixup,
+ .mode_set = mdp5_crtc_mode_set,
+ .prepare = mdp5_crtc_prepare,
+ .commit = mdp5_crtc_commit,
+ .mode_set_base = mdp5_crtc_mode_set_base,
+ .load_lut = mdp5_crtc_load_lut,
+};
+
+static void mdp5_crtc_vblank_irq(struct mdp_irq *irq, uint32_t irqstatus)
+{
+ struct mdp5_crtc *mdp5_crtc = container_of(irq, struct mdp5_crtc, vblank);
+ struct drm_crtc *crtc = &mdp5_crtc->base;
+ struct msm_drm_private *priv = crtc->dev->dev_private;
+ unsigned pending;
+
+ mdp_irq_unregister(&get_kms(crtc)->base, &mdp5_crtc->vblank);
+
+ pending = atomic_xchg(&mdp5_crtc->pending, 0);
+
+ if (pending & PENDING_FLIP) {
+ complete_flip(crtc, NULL);
+ drm_flip_work_commit(&mdp5_crtc->unref_fb_work, priv->wq);
+ }
+}
+
+static void mdp5_crtc_err_irq(struct mdp_irq *irq, uint32_t irqstatus)
+{
+ struct mdp5_crtc *mdp5_crtc = container_of(irq, struct mdp5_crtc, err);
+ struct drm_crtc *crtc = &mdp5_crtc->base;
+ DBG("%s: error: %08x", mdp5_crtc->name, irqstatus);
+ crtc_flush(crtc);
+}
+
+uint32_t mdp5_crtc_vblank(struct drm_crtc *crtc)
+{
+ struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+ return mdp5_crtc->vblank.irqmask;
+}
+
+void mdp5_crtc_cancel_pending_flip(struct drm_crtc *crtc, struct drm_file *file)
+{
+ DBG("cancel: %p", file);
+ complete_flip(crtc, file);
+}
+
+/* set interface for routing crtc->encoder: */
+void mdp5_crtc_set_intf(struct drm_crtc *crtc, int intf,
+ enum mdp5_intf intf_id)
+{
+ struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+ struct mdp5_kms *mdp5_kms = get_kms(crtc);
+ static const enum mdp5_intfnum intfnum[] = {
+ INTF0, INTF1, INTF2, INTF3,
+ };
+ uint32_t intf_sel;
+
+ /* now that we know what irq's we want: */
+ mdp5_crtc->err.irqmask = intf2err(intf);
+ mdp5_crtc->vblank.irqmask = intf2vblank(intf);
+
+ /* when called from modeset_init(), skip the rest until later: */
+ if (!mdp5_kms)
+ return;
+
+ intf_sel = mdp5_read(mdp5_kms, REG_MDP5_DISP_INTF_SEL);
+
+ switch (intf) {
+ case 0:
+ intf_sel &= ~MDP5_DISP_INTF_SEL_INTF0__MASK;
+ intf_sel |= MDP5_DISP_INTF_SEL_INTF0(intf_id);
+ break;
+ case 1:
+ intf_sel &= ~MDP5_DISP_INTF_SEL_INTF1__MASK;
+ intf_sel |= MDP5_DISP_INTF_SEL_INTF1(intf_id);
+ break;
+ case 2:
+ intf_sel &= ~MDP5_DISP_INTF_SEL_INTF2__MASK;
+ intf_sel |= MDP5_DISP_INTF_SEL_INTF2(intf_id);
+ break;
+ case 3:
+ intf_sel &= ~MDP5_DISP_INTF_SEL_INTF3__MASK;
+ intf_sel |= MDP5_DISP_INTF_SEL_INTF3(intf_id);
+ break;
+ default:
+ BUG();
+ break;
+ }
+
+ blend_setup(crtc);
+
+ DBG("%s: intf_sel=%08x", mdp5_crtc->name, intf_sel);
+
+ mdp5_write(mdp5_kms, REG_MDP5_DISP_INTF_SEL, intf_sel);
+ mdp5_write(mdp5_kms, REG_MDP5_CTL_OP(mdp5_crtc->id),
+ MDP5_CTL_OP_MODE(MODE_NONE) |
+ MDP5_CTL_OP_INTF_NUM(intfnum[intf]));
+
+ crtc_flush(crtc);
+}
+
+static void set_attach(struct drm_crtc *crtc, enum mdp5_pipe pipe_id,
+ struct drm_plane *plane)
+{
+ struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+
+ BUG_ON(pipe_id >= ARRAY_SIZE(mdp5_crtc->planes));
+
+ if (mdp5_crtc->planes[pipe_id] == plane)
+ return;
+
+ mdp5_crtc->planes[pipe_id] = plane;
+ blend_setup(crtc);
+ if (mdp5_crtc->enabled && (plane != mdp5_crtc->plane))
+ crtc_flush(crtc);
+}
+
+void mdp5_crtc_attach(struct drm_crtc *crtc, struct drm_plane *plane)
+{
+ set_attach(crtc, mdp5_plane_pipe(plane), plane);
+}
+
+void mdp5_crtc_detach(struct drm_crtc *crtc, struct drm_plane *plane)
+{
+ set_attach(crtc, mdp5_plane_pipe(plane), NULL);
+}
+
+/* initialize crtc */
+struct drm_crtc *mdp5_crtc_init(struct drm_device *dev,
+ struct drm_plane *plane, int id)
+{
+ struct drm_crtc *crtc = NULL;
+ struct mdp5_crtc *mdp5_crtc;
+ int ret;
+
+ mdp5_crtc = kzalloc(sizeof(*mdp5_crtc), GFP_KERNEL);
+ if (!mdp5_crtc) {
+ ret = -ENOMEM;
+ goto fail;
+ }
+
+ crtc = &mdp5_crtc->base;
+
+ mdp5_crtc->plane = plane;
+ mdp5_crtc->id = id;
+
+ mdp5_crtc->vblank.irq = mdp5_crtc_vblank_irq;
+ mdp5_crtc->err.irq = mdp5_crtc_err_irq;
+
+ snprintf(mdp5_crtc->name, sizeof(mdp5_crtc->name), "%s:%d",
+ pipe2name(mdp5_plane_pipe(plane)), id);
+
+ ret = drm_flip_work_init(&mdp5_crtc->unref_fb_work, 16,
+ "unref fb", unref_fb_worker);
+ if (ret)
+ goto fail;
+
+ INIT_FENCE_CB(&mdp5_crtc->pageflip_cb, pageflip_cb);
+
+ drm_crtc_init(dev, crtc, &mdp5_crtc_funcs);
+ drm_crtc_helper_add(crtc, &mdp5_crtc_helper_funcs);
+
+ mdp5_plane_install_properties(mdp5_crtc->plane, &crtc->base);
+
+ return crtc;
+
+fail:
+ if (crtc)
+ mdp5_crtc_destroy(crtc);
+
+ return ERR_PTR(ret);
+}
--- /dev/null
+/*
+ * Copyright (C) 2013 Red Hat
+ * Author: Rob Clark <robdclark@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "mdp5_kms.h"
+
+#include "drm_crtc.h"
+#include "drm_crtc_helper.h"
+
+struct mdp5_encoder {
+ struct drm_encoder base;
+ int intf;
+ enum mdp5_intf intf_id;
+ bool enabled;
+ uint32_t bsc;
+};
+#define to_mdp5_encoder(x) container_of(x, struct mdp5_encoder, base)
+
+static struct mdp5_kms *get_kms(struct drm_encoder *encoder)
+{
+ struct msm_drm_private *priv = encoder->dev->dev_private;
+ return to_mdp5_kms(to_mdp_kms(priv->kms));
+}
+
+#ifdef CONFIG_MSM_BUS_SCALING
+#include <mach/board.h>
+#include <mach/msm_bus.h>
+#include <mach/msm_bus_board.h>
+#define MDP_BUS_VECTOR_ENTRY(ab_val, ib_val) \
+ { \
+ .src = MSM_BUS_MASTER_MDP_PORT0, \
+ .dst = MSM_BUS_SLAVE_EBI_CH0, \
+ .ab = (ab_val), \
+ .ib = (ib_val), \
+ }
+
+static struct msm_bus_vectors mdp_bus_vectors[] = {
+ MDP_BUS_VECTOR_ENTRY(0, 0),
+ MDP_BUS_VECTOR_ENTRY(2000000000, 2000000000),
+};
+static struct msm_bus_paths mdp_bus_usecases[] = { {
+ .num_paths = 1,
+ .vectors = &mdp_bus_vectors[0],
+}, {
+ .num_paths = 1,
+ .vectors = &mdp_bus_vectors[1],
+} };
+static struct msm_bus_scale_pdata mdp_bus_scale_table = {
+ .usecase = mdp_bus_usecases,
+ .num_usecases = ARRAY_SIZE(mdp_bus_usecases),
+ .name = "mdss_mdp",
+};
+
+static void bs_init(struct mdp5_encoder *mdp5_encoder)
+{
+ mdp5_encoder->bsc = msm_bus_scale_register_client(
+ &mdp_bus_scale_table);
+ DBG("bus scale client: %08x", mdp5_encoder->bsc);
+}
+
+static void bs_fini(struct mdp5_encoder *mdp5_encoder)
+{
+ if (mdp5_encoder->bsc) {
+ msm_bus_scale_unregister_client(mdp5_encoder->bsc);
+ mdp5_encoder->bsc = 0;
+ }
+}
+
+static void bs_set(struct mdp5_encoder *mdp5_encoder, int idx)
+{
+ if (mdp5_encoder->bsc) {
+ DBG("set bus scaling: %d", idx);
+ /* HACK: scaling down, and then immediately back up
+ * seems to leave things broken (underflow).. so
+ * never disable:
+ */
+ idx = 1;
+ msm_bus_scale_client_update_request(mdp5_encoder->bsc, idx);
+ }
+}
+#else
+static void bs_init(struct mdp5_encoder *mdp5_encoder) {}
+static void bs_fini(struct mdp5_encoder *mdp5_encoder) {}
+static void bs_set(struct mdp5_encoder *mdp5_encoder, int idx) {}
+#endif
+
+static void mdp5_encoder_destroy(struct drm_encoder *encoder)
+{
+ struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
+ bs_fini(mdp5_encoder);
+ drm_encoder_cleanup(encoder);
+ kfree(mdp5_encoder);
+}
+
+static const struct drm_encoder_funcs mdp5_encoder_funcs = {
+ .destroy = mdp5_encoder_destroy,
+};
+
+static void mdp5_encoder_dpms(struct drm_encoder *encoder, int mode)
+{
+ struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
+ struct mdp5_kms *mdp5_kms = get_kms(encoder);
+ int intf = mdp5_encoder->intf;
+ bool enabled = (mode == DRM_MODE_DPMS_ON);
+
+ DBG("mode=%d", mode);
+
+ if (enabled == mdp5_encoder->enabled)
+ return;
+
+ if (enabled) {
+ bs_set(mdp5_encoder, 1);
+ mdp5_write(mdp5_kms, REG_MDP5_INTF_TIMING_ENGINE_EN(intf), 1);
+ } else {
+ mdp5_write(mdp5_kms, REG_MDP5_INTF_TIMING_ENGINE_EN(intf), 0);
+ bs_set(mdp5_encoder, 0);
+ }
+
+ mdp5_encoder->enabled = enabled;
+}
+
+static bool mdp5_encoder_mode_fixup(struct drm_encoder *encoder,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ return true;
+}
+
+static void mdp5_encoder_mode_set(struct drm_encoder *encoder,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
+ struct mdp5_kms *mdp5_kms = get_kms(encoder);
+ int intf = mdp5_encoder->intf;
+ uint32_t dtv_hsync_skew, vsync_period, vsync_len, ctrl_pol;
+ uint32_t display_v_start, display_v_end;
+ uint32_t hsync_start_x, hsync_end_x;
+ uint32_t format;
+
+ mode = adjusted_mode;
+
+ DBG("set mode: %d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x",
+ mode->base.id, mode->name,
+ mode->vrefresh, mode->clock,
+ mode->hdisplay, mode->hsync_start,
+ mode->hsync_end, mode->htotal,
+ mode->vdisplay, mode->vsync_start,
+ mode->vsync_end, mode->vtotal,
+ mode->type, mode->flags);
+
+ ctrl_pol = 0;
+ if (mode->flags & DRM_MODE_FLAG_NHSYNC)
+ ctrl_pol |= MDP5_INTF_POLARITY_CTL_HSYNC_LOW;
+ if (mode->flags & DRM_MODE_FLAG_NVSYNC)
+ ctrl_pol |= MDP5_INTF_POLARITY_CTL_VSYNC_LOW;
+ /* probably need to get DATA_EN polarity from panel.. */
+
+ dtv_hsync_skew = 0; /* get this from panel? */
+ format = 0x213f; /* get this from panel? */
+
+ hsync_start_x = (mode->htotal - mode->hsync_start);
+ hsync_end_x = mode->htotal - (mode->hsync_start - mode->hdisplay) - 1;
+
+ vsync_period = mode->vtotal * mode->htotal;
+ vsync_len = (mode->vsync_end - mode->vsync_start) * mode->htotal;
+ display_v_start = (mode->vtotal - mode->vsync_start) * mode->htotal + dtv_hsync_skew;
+ display_v_end = vsync_period - ((mode->vsync_start - mode->vdisplay) * mode->htotal) + dtv_hsync_skew - 1;
+
+ mdp5_write(mdp5_kms, REG_MDP5_INTF_HSYNC_CTL(intf),
+ MDP5_INTF_HSYNC_CTL_PULSEW(mode->hsync_end - mode->hsync_start) |
+ MDP5_INTF_HSYNC_CTL_PERIOD(mode->htotal));
+ mdp5_write(mdp5_kms, REG_MDP5_INTF_VSYNC_PERIOD_F0(intf), vsync_period);
+ mdp5_write(mdp5_kms, REG_MDP5_INTF_VSYNC_LEN_F0(intf), vsync_len);
+ mdp5_write(mdp5_kms, REG_MDP5_INTF_DISPLAY_HCTL(intf),
+ MDP5_INTF_DISPLAY_HCTL_START(hsync_start_x) |
+ MDP5_INTF_DISPLAY_HCTL_END(hsync_end_x));
+ mdp5_write(mdp5_kms, REG_MDP5_INTF_DISPLAY_VSTART_F0(intf), display_v_start);
+ mdp5_write(mdp5_kms, REG_MDP5_INTF_DISPLAY_VEND_F0(intf), display_v_end);
+ mdp5_write(mdp5_kms, REG_MDP5_INTF_BORDER_COLOR(intf), 0);
+ mdp5_write(mdp5_kms, REG_MDP5_INTF_UNDERFLOW_COLOR(intf), 0xff);
+ mdp5_write(mdp5_kms, REG_MDP5_INTF_HSYNC_SKEW(intf), dtv_hsync_skew);
+ mdp5_write(mdp5_kms, REG_MDP5_INTF_POLARITY_CTL(intf), ctrl_pol);
+ mdp5_write(mdp5_kms, REG_MDP5_INTF_ACTIVE_HCTL(intf),
+ MDP5_INTF_ACTIVE_HCTL_START(0) |
+ MDP5_INTF_ACTIVE_HCTL_END(0));
+ mdp5_write(mdp5_kms, REG_MDP5_INTF_ACTIVE_VSTART_F0(intf), 0);
+ mdp5_write(mdp5_kms, REG_MDP5_INTF_ACTIVE_VEND_F0(intf), 0);
+ mdp5_write(mdp5_kms, REG_MDP5_INTF_PANEL_FORMAT(intf), format);
+ mdp5_write(mdp5_kms, REG_MDP5_INTF_FRAME_LINE_COUNT_EN(intf), 0x3); /* frame+line? */
+}
+
+static void mdp5_encoder_prepare(struct drm_encoder *encoder)
+{
+ mdp5_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
+}
+
+static void mdp5_encoder_commit(struct drm_encoder *encoder)
+{
+ struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
+ mdp5_crtc_set_intf(encoder->crtc, mdp5_encoder->intf,
+ mdp5_encoder->intf_id);
+ mdp5_encoder_dpms(encoder, DRM_MODE_DPMS_ON);
+}
+
+static const struct drm_encoder_helper_funcs mdp5_encoder_helper_funcs = {
+ .dpms = mdp5_encoder_dpms,
+ .mode_fixup = mdp5_encoder_mode_fixup,
+ .mode_set = mdp5_encoder_mode_set,
+ .prepare = mdp5_encoder_prepare,
+ .commit = mdp5_encoder_commit,
+};
+
+/* initialize encoder */
+struct drm_encoder *mdp5_encoder_init(struct drm_device *dev, int intf,
+ enum mdp5_intf intf_id)
+{
+ struct drm_encoder *encoder = NULL;
+ struct mdp5_encoder *mdp5_encoder;
+ int ret;
+
+ mdp5_encoder = kzalloc(sizeof(*mdp5_encoder), GFP_KERNEL);
+ if (!mdp5_encoder) {
+ ret = -ENOMEM;
+ goto fail;
+ }
+
+ mdp5_encoder->intf = intf;
+ mdp5_encoder->intf_id = intf_id;
+ encoder = &mdp5_encoder->base;
+
+ drm_encoder_init(dev, encoder, &mdp5_encoder_funcs,
+ DRM_MODE_ENCODER_TMDS);
+ drm_encoder_helper_add(encoder, &mdp5_encoder_helper_funcs);
+
+ bs_init(mdp5_encoder);
+
+ return encoder;
+
+fail:
+ if (encoder)
+ mdp5_encoder_destroy(encoder);
+
+ return ERR_PTR(ret);
+}
--- /dev/null
+/*
+ * Copyright (C) 2013 Red Hat
+ * Author: Rob Clark <robdclark@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "msm_drv.h"
+#include "mdp5_kms.h"
+
+void mdp5_set_irqmask(struct mdp_kms *mdp_kms, uint32_t irqmask)
+{
+ mdp5_write(to_mdp5_kms(mdp_kms), REG_MDP5_INTR_EN, irqmask);
+}
+
+static void mdp5_irq_error_handler(struct mdp_irq *irq, uint32_t irqstatus)
+{
+ DRM_ERROR("errors: %08x\n", irqstatus);
+}
+
+void mdp5_irq_preinstall(struct msm_kms *kms)
+{
+ struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms));
+ mdp5_write(mdp5_kms, REG_MDP5_INTR_CLEAR, 0xffffffff);
+}
+
+int mdp5_irq_postinstall(struct msm_kms *kms)
+{
+ struct mdp_kms *mdp_kms = to_mdp_kms(kms);
+ struct mdp5_kms *mdp5_kms = to_mdp5_kms(mdp_kms);
+ struct mdp_irq *error_handler = &mdp5_kms->error_handler;
+
+ error_handler->irq = mdp5_irq_error_handler;
+ error_handler->irqmask = MDP5_IRQ_INTF0_UNDER_RUN |
+ MDP5_IRQ_INTF1_UNDER_RUN |
+ MDP5_IRQ_INTF2_UNDER_RUN |
+ MDP5_IRQ_INTF3_UNDER_RUN;
+
+ mdp_irq_register(mdp_kms, error_handler);
+
+ return 0;
+}
+
+void mdp5_irq_uninstall(struct msm_kms *kms)
+{
+ struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms));
+ mdp5_write(mdp5_kms, REG_MDP5_INTR_EN, 0x00000000);
+}
+
+static void mdp5_irq_mdp(struct mdp_kms *mdp_kms)
+{
+ struct mdp5_kms *mdp5_kms = to_mdp5_kms(mdp_kms);
+ struct drm_device *dev = mdp5_kms->dev;
+ struct msm_drm_private *priv = dev->dev_private;
+ unsigned int id;
+ uint32_t status;
+
+ status = mdp5_read(mdp5_kms, REG_MDP5_INTR_STATUS);
+ mdp5_write(mdp5_kms, REG_MDP5_INTR_CLEAR, status);
+
+ VERB("status=%08x", status);
+
+ for (id = 0; id < priv->num_crtcs; id++)
+ if (status & mdp5_crtc_vblank(priv->crtcs[id]))
+ drm_handle_vblank(dev, id);
+
+ mdp_dispatch_irqs(mdp_kms, status);
+}
+
+irqreturn_t mdp5_irq(struct msm_kms *kms)
+{
+ struct mdp_kms *mdp_kms = to_mdp_kms(kms);
+ struct mdp5_kms *mdp5_kms = to_mdp5_kms(mdp_kms);
+ uint32_t intr;
+
+ intr = mdp5_read(mdp5_kms, REG_MDP5_HW_INTR_STATUS);
+
+ VERB("intr=%08x", intr);
+
+ if (intr & MDP5_HW_INTR_STATUS_INTR_MDP)
+ mdp5_irq_mdp(mdp_kms);
+
+ if (intr & MDP5_HW_INTR_STATUS_INTR_HDMI)
+ hdmi_irq(0, mdp5_kms->hdmi);
+
+ return IRQ_HANDLED;
+}
+
+int mdp5_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc)
+{
+ mdp_update_vblank_mask(to_mdp_kms(kms),
+ mdp5_crtc_vblank(crtc), true);
+ return 0;
+}
+
+void mdp5_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc)
+{
+ mdp_update_vblank_mask(to_mdp_kms(kms),
+ mdp5_crtc_vblank(crtc), false);
+}
--- /dev/null
+/*
+ * Copyright (C) 2013 Red Hat
+ * Author: Rob Clark <robdclark@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "msm_drv.h"
+#include "msm_mmu.h"
+#include "mdp5_kms.h"
+
+static struct mdp5_platform_config *mdp5_get_config(struct platform_device *dev);
+
+static int mdp5_hw_init(struct msm_kms *kms)
+{
+ struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms));
+ struct drm_device *dev = mdp5_kms->dev;
+ uint32_t version, major, minor;
+ int ret = 0;
+
+ pm_runtime_get_sync(dev->dev);
+
+ mdp5_enable(mdp5_kms);
+ version = mdp5_read(mdp5_kms, REG_MDP5_MDP_VERSION);
+ mdp5_disable(mdp5_kms);
+
+ major = FIELD(version, MDP5_MDP_VERSION_MAJOR);
+ minor = FIELD(version, MDP5_MDP_VERSION_MINOR);
+
+ DBG("found MDP5 version v%d.%d", major, minor);
+
+ if ((major != 1) || ((minor != 0) && (minor != 2))) {
+ dev_err(dev->dev, "unexpected MDP version: v%d.%d\n",
+ major, minor);
+ ret = -ENXIO;
+ goto out;
+ }
+
+ mdp5_kms->rev = minor;
+
+ /* Magic unknown register writes:
+ *
+ * W VBIF:0x004 00000001 (mdss_mdp.c:839)
+ * W MDP5:0x2e0 0xe9 (mdss_mdp.c:839)
+ * W MDP5:0x2e4 0x55 (mdss_mdp.c:839)
+ * W MDP5:0x3ac 0xc0000ccc (mdss_mdp.c:839)
+ * W MDP5:0x3b4 0xc0000ccc (mdss_mdp.c:839)
+ * W MDP5:0x3bc 0xcccccc (mdss_mdp.c:839)
+ * W MDP5:0x4a8 0xcccc0c0 (mdss_mdp.c:839)
+ * W MDP5:0x4b0 0xccccc0c0 (mdss_mdp.c:839)
+ * W MDP5:0x4b8 0xccccc000 (mdss_mdp.c:839)
+ *
+ * Downstream fbdev driver gets these register offsets/values
+ * from DT.. not really sure what these registers are or if
+ * different values for different boards/SoC's, etc. I guess
+ * they are the golden registers.
+ *
+ * Not setting these does not seem to cause any problem. But
+ * we may be getting lucky with the bootloader initializing
+ * them for us. OTOH, if we can always count on the bootloader
+ * setting the golden registers, then perhaps we don't need to
+ * care.
+ */
+
+ mdp5_write(mdp5_kms, REG_MDP5_DISP_INTF_SEL, 0);
+ mdp5_write(mdp5_kms, REG_MDP5_CTL_OP(0), 0);
+ mdp5_write(mdp5_kms, REG_MDP5_CTL_OP(1), 0);
+ mdp5_write(mdp5_kms, REG_MDP5_CTL_OP(2), 0);
+ mdp5_write(mdp5_kms, REG_MDP5_CTL_OP(3), 0);
+
+out:
+ pm_runtime_put_sync(dev->dev);
+
+ return ret;
+}
+
+static long mdp5_round_pixclk(struct msm_kms *kms, unsigned long rate,
+ struct drm_encoder *encoder)
+{
+ return rate;
+}
+
+static void mdp5_preclose(struct msm_kms *kms, struct drm_file *file)
+{
+ struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms));
+ struct msm_drm_private *priv = mdp5_kms->dev->dev_private;
+ unsigned i;
+
+ for (i = 0; i < priv->num_crtcs; i++)
+ mdp5_crtc_cancel_pending_flip(priv->crtcs[i], file);
+}
+
+static void mdp5_destroy(struct msm_kms *kms)
+{
+ struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms));
+ kfree(mdp5_kms);
+}
+
+static const struct mdp_kms_funcs kms_funcs = {
+ .base = {
+ .hw_init = mdp5_hw_init,
+ .irq_preinstall = mdp5_irq_preinstall,
+ .irq_postinstall = mdp5_irq_postinstall,
+ .irq_uninstall = mdp5_irq_uninstall,
+ .irq = mdp5_irq,
+ .enable_vblank = mdp5_enable_vblank,
+ .disable_vblank = mdp5_disable_vblank,
+ .get_format = mdp_get_format,
+ .round_pixclk = mdp5_round_pixclk,
+ .preclose = mdp5_preclose,
+ .destroy = mdp5_destroy,
+ },
+ .set_irqmask = mdp5_set_irqmask,
+};
+
+int mdp5_disable(struct mdp5_kms *mdp5_kms)
+{
+ DBG("");
+
+ clk_disable_unprepare(mdp5_kms->ahb_clk);
+ clk_disable_unprepare(mdp5_kms->axi_clk);
+ clk_disable_unprepare(mdp5_kms->core_clk);
+ clk_disable_unprepare(mdp5_kms->lut_clk);
+
+ return 0;
+}
+
+int mdp5_enable(struct mdp5_kms *mdp5_kms)
+{
+ DBG("");
+
+ clk_prepare_enable(mdp5_kms->ahb_clk);
+ clk_prepare_enable(mdp5_kms->axi_clk);
+ clk_prepare_enable(mdp5_kms->core_clk);
+ clk_prepare_enable(mdp5_kms->lut_clk);
+
+ return 0;
+}
+
+static int modeset_init(struct mdp5_kms *mdp5_kms)
+{
+ static const enum mdp5_pipe crtcs[] = {
+ SSPP_RGB0, SSPP_RGB1, SSPP_RGB2,
+ };
+ struct drm_device *dev = mdp5_kms->dev;
+ struct msm_drm_private *priv = dev->dev_private;
+ struct drm_encoder *encoder;
+ int i, ret;
+
+ /* construct CRTCs: */
+ for (i = 0; i < ARRAY_SIZE(crtcs); i++) {
+ struct drm_plane *plane;
+ struct drm_crtc *crtc;
+
+ plane = mdp5_plane_init(dev, crtcs[i], true);
+ if (IS_ERR(plane)) {
+ ret = PTR_ERR(plane);
+ dev_err(dev->dev, "failed to construct plane for %s (%d)\n",
+ pipe2name(crtcs[i]), ret);
+ goto fail;
+ }
+
+ crtc = mdp5_crtc_init(dev, plane, i);
+ if (IS_ERR(crtc)) {
+ ret = PTR_ERR(crtc);
+ dev_err(dev->dev, "failed to construct crtc for %s (%d)\n",
+ pipe2name(crtcs[i]), ret);
+ goto fail;
+ }
+ priv->crtcs[priv->num_crtcs++] = crtc;
+ }
+
+ /* Construct encoder for HDMI: */
+ encoder = mdp5_encoder_init(dev, 3, INTF_HDMI);
+ if (IS_ERR(encoder)) {
+ dev_err(dev->dev, "failed to construct encoder\n");
+ ret = PTR_ERR(encoder);
+ goto fail;
+ }
+
+ /* NOTE: the vsync and error irq's are actually associated with
+ * the INTF/encoder.. the easiest way to deal with this (ie. what
+ * we do now) is assume a fixed relationship between crtc's and
+ * encoders. I'm not sure if there is ever a need to more freely
+ * assign crtcs to encoders, but if there is then we need to take
+ * care of error and vblank irq's that the crtc has registered,
+ * and also update user-requested vblank_mask.
+ */
+ encoder->possible_crtcs = BIT(0);
+ mdp5_crtc_set_intf(priv->crtcs[0], 3, INTF_HDMI);
+
+ priv->encoders[priv->num_encoders++] = encoder;
+
+ /* Construct bridge/connector for HDMI: */
+ mdp5_kms->hdmi = hdmi_init(dev, encoder);
+ if (IS_ERR(mdp5_kms->hdmi)) {
+ ret = PTR_ERR(mdp5_kms->hdmi);
+ dev_err(dev->dev, "failed to initialize HDMI: %d\n", ret);
+ goto fail;
+ }
+
+ return 0;
+
+fail:
+ return ret;
+}
+
+static const char *iommu_ports[] = {
+ "mdp_0",
+};
+
+static int get_clk(struct platform_device *pdev, struct clk **clkp,
+ const char *name)
+{
+ struct device *dev = &pdev->dev;
+ struct clk *clk = devm_clk_get(dev, name);
+ if (IS_ERR(clk)) {
+ dev_err(dev, "failed to get %s (%ld)\n", name, PTR_ERR(clk));
+ return PTR_ERR(clk);
+ }
+ *clkp = clk;
+ return 0;
+}
+
+struct msm_kms *mdp5_kms_init(struct drm_device *dev)
+{
+ struct platform_device *pdev = dev->platformdev;
+ struct mdp5_platform_config *config = mdp5_get_config(pdev);
+ struct mdp5_kms *mdp5_kms;
+ struct msm_kms *kms = NULL;
+ struct msm_mmu *mmu;
+ int ret;
+
+ mdp5_kms = kzalloc(sizeof(*mdp5_kms), GFP_KERNEL);
+ if (!mdp5_kms) {
+ dev_err(dev->dev, "failed to allocate kms\n");
+ ret = -ENOMEM;
+ goto fail;
+ }
+
+ mdp_kms_init(&mdp5_kms->base, &kms_funcs);
+
+ kms = &mdp5_kms->base.base;
+
+ mdp5_kms->dev = dev;
+ mdp5_kms->smp_blk_cnt = config->smp_blk_cnt;
+
+ mdp5_kms->mmio = msm_ioremap(pdev, "mdp_phys", "MDP5");
+ if (IS_ERR(mdp5_kms->mmio)) {
+ ret = PTR_ERR(mdp5_kms->mmio);
+ goto fail;
+ }
+
+ mdp5_kms->vbif = msm_ioremap(pdev, "vbif_phys", "VBIF");
+ if (IS_ERR(mdp5_kms->vbif)) {
+ ret = PTR_ERR(mdp5_kms->vbif);
+ goto fail;
+ }
+
+ mdp5_kms->vdd = devm_regulator_get(&pdev->dev, "vdd");
+ if (IS_ERR(mdp5_kms->vdd)) {
+ ret = PTR_ERR(mdp5_kms->vdd);
+ goto fail;
+ }
+
+ ret = regulator_enable(mdp5_kms->vdd);
+ if (ret) {
+ dev_err(dev->dev, "failed to enable regulator vdd: %d\n", ret);
+ goto fail;
+ }
+
+ ret = get_clk(pdev, &mdp5_kms->axi_clk, "bus_clk") ||
+ get_clk(pdev, &mdp5_kms->ahb_clk, "iface_clk") ||
+ get_clk(pdev, &mdp5_kms->src_clk, "core_clk_src") ||
+ get_clk(pdev, &mdp5_kms->core_clk, "core_clk") ||
+ get_clk(pdev, &mdp5_kms->lut_clk, "lut_clk") ||
+ get_clk(pdev, &mdp5_kms->vsync_clk, "vsync_clk");
+ if (ret)
+ goto fail;
+
+ ret = clk_set_rate(mdp5_kms->src_clk, config->max_clk);
+
+ /* make sure things are off before attaching iommu (bootloader could
+ * have left things on, in which case we'll start getting faults if
+ * we don't disable):
+ */
+ mdp5_enable(mdp5_kms);
+ mdp5_write(mdp5_kms, REG_MDP5_INTF_TIMING_ENGINE_EN(0), 0);
+ mdp5_write(mdp5_kms, REG_MDP5_INTF_TIMING_ENGINE_EN(1), 0);
+ mdp5_write(mdp5_kms, REG_MDP5_INTF_TIMING_ENGINE_EN(2), 0);
+ mdp5_write(mdp5_kms, REG_MDP5_INTF_TIMING_ENGINE_EN(3), 0);
+ mdp5_disable(mdp5_kms);
+ mdelay(16);
+
+ if (config->iommu) {
+ mmu = msm_iommu_new(dev, config->iommu);
+ if (IS_ERR(mmu)) {
+ ret = PTR_ERR(mmu);
+ goto fail;
+ }
+ ret = mmu->funcs->attach(mmu, iommu_ports,
+ ARRAY_SIZE(iommu_ports));
+ if (ret)
+ goto fail;
+ } else {
+ dev_info(dev->dev, "no iommu, fallback to phys "
+ "contig buffers for scanout\n");
+ mmu = NULL;
+ }
+
+ mdp5_kms->id = msm_register_mmu(dev, mmu);
+ if (mdp5_kms->id < 0) {
+ ret = mdp5_kms->id;
+ dev_err(dev->dev, "failed to register mdp5 iommu: %d\n", ret);
+ goto fail;
+ }
+
+ ret = modeset_init(mdp5_kms);
+ if (ret) {
+ dev_err(dev->dev, "modeset_init failed: %d\n", ret);
+ goto fail;
+ }
+
+ return kms;
+
+fail:
+ if (kms)
+ mdp5_destroy(kms);
+ return ERR_PTR(ret);
+}
+
+static struct mdp5_platform_config *mdp5_get_config(struct platform_device *dev)
+{
+ static struct mdp5_platform_config config = {};
+#ifdef CONFIG_OF
+ /* TODO */
+#endif
+ return &config;
+}
--- /dev/null
+/*
+ * Copyright (C) 2013 Red Hat
+ * Author: Rob Clark <robdclark@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __MDP5_KMS_H__
+#define __MDP5_KMS_H__
+
+#include "msm_drv.h"
+#include "msm_kms.h"
+#include "mdp/mdp_kms.h"
+#include "mdp5.xml.h"
+#include "mdp5_smp.h"
+
+struct mdp5_kms {
+ struct mdp_kms base;
+
+ struct drm_device *dev;
+
+ int rev;
+
+ /* mapper-id used to request GEM buffer mapped for scanout: */
+ int id;
+
+ /* for tracking smp allocation amongst pipes: */
+ mdp5_smp_state_t smp_state;
+ struct mdp5_client_smp_state smp_client_state[CID_MAX];
+ int smp_blk_cnt;
+
+ /* io/register spaces: */
+ void __iomem *mmio, *vbif;
+
+ struct regulator *vdd;
+
+ struct clk *axi_clk;
+ struct clk *ahb_clk;
+ struct clk *src_clk;
+ struct clk *core_clk;
+ struct clk *lut_clk;
+ struct clk *vsync_clk;
+
+ struct hdmi *hdmi;
+
+ struct mdp_irq error_handler;
+};
+#define to_mdp5_kms(x) container_of(x, struct mdp5_kms, base)
+
+/* platform config data (ie. from DT, or pdata) */
+struct mdp5_platform_config {
+ struct iommu_domain *iommu;
+ uint32_t max_clk;
+ int smp_blk_cnt;
+};
+
+static inline void mdp5_write(struct mdp5_kms *mdp5_kms, u32 reg, u32 data)
+{
+ msm_writel(data, mdp5_kms->mmio + reg);
+}
+
+static inline u32 mdp5_read(struct mdp5_kms *mdp5_kms, u32 reg)
+{
+ return msm_readl(mdp5_kms->mmio + reg);
+}
+
+static inline const char *pipe2name(enum mdp5_pipe pipe)
+{
+ static const char *names[] = {
+#define NAME(n) [SSPP_ ## n] = #n
+ NAME(VIG0), NAME(VIG1), NAME(VIG2),
+ NAME(RGB0), NAME(RGB1), NAME(RGB2),
+ NAME(DMA0), NAME(DMA1),
+#undef NAME
+ };
+ return names[pipe];
+}
+
+static inline uint32_t pipe2flush(enum mdp5_pipe pipe)
+{
+ switch (pipe) {
+ case SSPP_VIG0: return MDP5_CTL_FLUSH_VIG0;
+ case SSPP_VIG1: return MDP5_CTL_FLUSH_VIG1;
+ case SSPP_VIG2: return MDP5_CTL_FLUSH_VIG2;
+ case SSPP_RGB0: return MDP5_CTL_FLUSH_RGB0;
+ case SSPP_RGB1: return MDP5_CTL_FLUSH_RGB1;
+ case SSPP_RGB2: return MDP5_CTL_FLUSH_RGB2;
+ case SSPP_DMA0: return MDP5_CTL_FLUSH_DMA0;
+ case SSPP_DMA1: return MDP5_CTL_FLUSH_DMA1;
+ default: return 0;
+ }
+}
+
+static inline int pipe2nclients(enum mdp5_pipe pipe)
+{
+ switch (pipe) {
+ case SSPP_RGB0:
+ case SSPP_RGB1:
+ case SSPP_RGB2:
+ return 1;
+ default:
+ return 3;
+ }
+}
+
+static inline enum mdp5_client_id pipe2client(enum mdp5_pipe pipe, int plane)
+{
+ WARN_ON(plane >= pipe2nclients(pipe));
+ switch (pipe) {
+ case SSPP_VIG0: return CID_VIG0_Y + plane;
+ case SSPP_VIG1: return CID_VIG1_Y + plane;
+ case SSPP_VIG2: return CID_VIG2_Y + plane;
+ case SSPP_RGB0: return CID_RGB0;
+ case SSPP_RGB1: return CID_RGB1;
+ case SSPP_RGB2: return CID_RGB2;
+ case SSPP_DMA0: return CID_DMA0_Y + plane;
+ case SSPP_DMA1: return CID_DMA1_Y + plane;
+ default: return CID_UNUSED;
+ }
+}
+
+static inline uint32_t mixer2flush(int lm)
+{
+ switch (lm) {
+ case 0: return MDP5_CTL_FLUSH_LM0;
+ case 1: return MDP5_CTL_FLUSH_LM1;
+ case 2: return MDP5_CTL_FLUSH_LM2;
+ default: return 0;
+ }
+}
+
+static inline uint32_t intf2err(int intf)
+{
+ switch (intf) {
+ case 0: return MDP5_IRQ_INTF0_UNDER_RUN;
+ case 1: return MDP5_IRQ_INTF1_UNDER_RUN;
+ case 2: return MDP5_IRQ_INTF2_UNDER_RUN;
+ case 3: return MDP5_IRQ_INTF3_UNDER_RUN;
+ default: return 0;
+ }
+}
+
+static inline uint32_t intf2vblank(int intf)
+{
+ switch (intf) {
+ case 0: return MDP5_IRQ_INTF0_VSYNC;
+ case 1: return MDP5_IRQ_INTF1_VSYNC;
+ case 2: return MDP5_IRQ_INTF2_VSYNC;
+ case 3: return MDP5_IRQ_INTF3_VSYNC;
+ default: return 0;
+ }
+}
+
+int mdp5_disable(struct mdp5_kms *mdp5_kms);
+int mdp5_enable(struct mdp5_kms *mdp5_kms);
+
+void mdp5_set_irqmask(struct mdp_kms *mdp_kms, uint32_t irqmask);
+void mdp5_irq_preinstall(struct msm_kms *kms);
+int mdp5_irq_postinstall(struct msm_kms *kms);
+void mdp5_irq_uninstall(struct msm_kms *kms);
+irqreturn_t mdp5_irq(struct msm_kms *kms);
+int mdp5_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc);
+void mdp5_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc);
+
+static inline
+uint32_t mdp5_get_formats(enum mdp5_pipe pipe, uint32_t *pixel_formats,
+ uint32_t max_formats)
+{
+ /* TODO when we have YUV, we need to filter supported formats
+ * based on pipe id..
+ */
+ return mdp_get_formats(pixel_formats, max_formats);
+}
+
+void mdp5_plane_install_properties(struct drm_plane *plane,
+ struct drm_mode_object *obj);
+void mdp5_plane_set_scanout(struct drm_plane *plane,
+ struct drm_framebuffer *fb);
+int mdp5_plane_mode_set(struct drm_plane *plane,
+ struct drm_crtc *crtc, struct drm_framebuffer *fb,
+ int crtc_x, int crtc_y,
+ unsigned int crtc_w, unsigned int crtc_h,
+ uint32_t src_x, uint32_t src_y,
+ uint32_t src_w, uint32_t src_h);
+void mdp5_plane_complete_flip(struct drm_plane *plane);
+enum mdp5_pipe mdp5_plane_pipe(struct drm_plane *plane);
+struct drm_plane *mdp5_plane_init(struct drm_device *dev,
+ enum mdp5_pipe pipe, bool private_plane);
+
+uint32_t mdp5_crtc_vblank(struct drm_crtc *crtc);
+
+void mdp5_crtc_cancel_pending_flip(struct drm_crtc *crtc, struct drm_file *file);
+void mdp5_crtc_set_intf(struct drm_crtc *crtc, int intf,
+ enum mdp5_intf intf_id);
+void mdp5_crtc_attach(struct drm_crtc *crtc, struct drm_plane *plane);
+void mdp5_crtc_detach(struct drm_crtc *crtc, struct drm_plane *plane);
+struct drm_crtc *mdp5_crtc_init(struct drm_device *dev,
+ struct drm_plane *plane, int id);
+
+struct drm_encoder *mdp5_encoder_init(struct drm_device *dev, int intf,
+ enum mdp5_intf intf_id);
+
+#endif /* __MDP5_KMS_H__ */
--- /dev/null
+/*
+ * Copyright (C) 2013 Red Hat
+ * Author: Rob Clark <robdclark@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "mdp5_kms.h"
+
+
+struct mdp5_plane {
+ struct drm_plane base;
+ const char *name;
+
+ enum mdp5_pipe pipe;
+
+ uint32_t nformats;
+ uint32_t formats[32];
+
+ bool enabled;
+};
+#define to_mdp5_plane(x) container_of(x, struct mdp5_plane, base)
+
+static struct mdp5_kms *get_kms(struct drm_plane *plane)
+{
+ struct msm_drm_private *priv = plane->dev->dev_private;
+ return to_mdp5_kms(to_mdp_kms(priv->kms));
+}
+
+static int mdp5_plane_update(struct drm_plane *plane,
+ struct drm_crtc *crtc, struct drm_framebuffer *fb,
+ int crtc_x, int crtc_y,
+ unsigned int crtc_w, unsigned int crtc_h,
+ uint32_t src_x, uint32_t src_y,
+ uint32_t src_w, uint32_t src_h)
+{
+ struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane);
+
+ mdp5_plane->enabled = true;
+
+ if (plane->fb)
+ drm_framebuffer_unreference(plane->fb);
+
+ drm_framebuffer_reference(fb);
+
+ return mdp5_plane_mode_set(plane, crtc, fb,
+ crtc_x, crtc_y, crtc_w, crtc_h,
+ src_x, src_y, src_w, src_h);
+}
+
+static int mdp5_plane_disable(struct drm_plane *plane)
+{
+ struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane);
+ struct mdp5_kms *mdp5_kms = get_kms(plane);
+ enum mdp5_pipe pipe = mdp5_plane->pipe;
+ int i;
+
+ DBG("%s: disable", mdp5_plane->name);
+
+ /* update our SMP request to zero (release all our blks): */
+ for (i = 0; i < pipe2nclients(pipe); i++)
+ mdp5_smp_request(mdp5_kms, pipe2client(pipe, i), 0);
+
+ /* TODO detaching now will cause us not to get the last
+ * vblank and mdp5_smp_commit().. so other planes will
+ * still see smp blocks previously allocated to us as
+ * in-use..
+ */
+ if (plane->crtc)
+ mdp5_crtc_detach(plane->crtc, plane);
+
+ return 0;
+}
+
+static void mdp5_plane_destroy(struct drm_plane *plane)
+{
+ struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane);
+
+ mdp5_plane_disable(plane);
+ drm_plane_cleanup(plane);
+
+ kfree(mdp5_plane);
+}
+
+/* helper to install properties which are common to planes and crtcs */
+void mdp5_plane_install_properties(struct drm_plane *plane,
+ struct drm_mode_object *obj)
+{
+ // XXX
+}
+
+int mdp5_plane_set_property(struct drm_plane *plane,
+ struct drm_property *property, uint64_t val)
+{
+ // XXX
+ return -EINVAL;
+}
+
+static const struct drm_plane_funcs mdp5_plane_funcs = {
+ .update_plane = mdp5_plane_update,
+ .disable_plane = mdp5_plane_disable,
+ .destroy = mdp5_plane_destroy,
+ .set_property = mdp5_plane_set_property,
+};
+
+void mdp5_plane_set_scanout(struct drm_plane *plane,
+ struct drm_framebuffer *fb)
+{
+ struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane);
+ struct mdp5_kms *mdp5_kms = get_kms(plane);
+ enum mdp5_pipe pipe = mdp5_plane->pipe;
+ uint32_t nplanes = drm_format_num_planes(fb->pixel_format);
+ uint32_t iova[4];
+ int i;
+
+ for (i = 0; i < nplanes; i++) {
+ struct drm_gem_object *bo = msm_framebuffer_bo(fb, i);
+ msm_gem_get_iova(bo, mdp5_kms->id, &iova[i]);
+ }
+ for (; i < 4; i++)
+ iova[i] = 0;
+
+ mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_STRIDE_A(pipe),
+ MDP5_PIPE_SRC_STRIDE_A_P0(fb->pitches[0]) |
+ MDP5_PIPE_SRC_STRIDE_A_P1(fb->pitches[1]));
+
+ mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_STRIDE_B(pipe),
+ MDP5_PIPE_SRC_STRIDE_B_P2(fb->pitches[2]) |
+ MDP5_PIPE_SRC_STRIDE_B_P3(fb->pitches[3]));
+
+ mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC0_ADDR(pipe), iova[0]);
+ mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC1_ADDR(pipe), iova[1]);
+ mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC2_ADDR(pipe), iova[2]);
+ mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC3_ADDR(pipe), iova[3]);
+
+ plane->fb = fb;
+}
+
+/* NOTE: looks like if horizontal decimation is used (if we supported that)
+ * then the width used to calculate SMP block requirements is the post-
+ * decimated width. Ie. SMP buffering sits downstream of decimation (which
+ * presumably happens during the dma from scanout buffer).
+ */
+static int request_smp_blocks(struct drm_plane *plane, uint32_t format,
+ uint32_t nplanes, uint32_t width)
+{
+ struct drm_device *dev = plane->dev;
+ struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane);
+ struct mdp5_kms *mdp5_kms = get_kms(plane);
+ enum mdp5_pipe pipe = mdp5_plane->pipe;
+ int i, hsub, nlines, nblks, ret;
+
+ hsub = drm_format_horz_chroma_subsampling(format);
+
+ /* different if BWC (compressed framebuffer?) enabled: */
+ nlines = 2;
+
+ for (i = 0, nblks = 0; i < nplanes; i++) {
+ int n, fetch_stride, cpp;
+
+ cpp = drm_format_plane_cpp(format, i);
+ fetch_stride = width * cpp / (i ? hsub : 1);
+
+ n = DIV_ROUND_UP(fetch_stride * nlines, SMP_BLK_SIZE);
+
+ /* for hw rev v1.00 */
+ if (mdp5_kms->rev == 0)
+ n = roundup_pow_of_two(n);
+
+ DBG("%s[%d]: request %d SMP blocks", mdp5_plane->name, i, n);
+ ret = mdp5_smp_request(mdp5_kms, pipe2client(pipe, i), n);
+ if (ret) {
+ dev_err(dev->dev, "Could not allocate %d SMP blocks: %d\n",
+ n, ret);
+ return ret;
+ }
+
+ nblks += n;
+ }
+
+ /* in success case, return total # of blocks allocated: */
+ return nblks;
+}
+
+static void set_fifo_thresholds(struct drm_plane *plane, int nblks)
+{
+ struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane);
+ struct mdp5_kms *mdp5_kms = get_kms(plane);
+ enum mdp5_pipe pipe = mdp5_plane->pipe;
+ uint32_t val;
+
+ /* 1/4 of SMP pool that is being fetched */
+ val = (nblks * SMP_ENTRIES_PER_BLK) / 4;
+
+ mdp5_write(mdp5_kms, REG_MDP5_PIPE_REQPRIO_FIFO_WM_0(pipe), val * 1);
+ mdp5_write(mdp5_kms, REG_MDP5_PIPE_REQPRIO_FIFO_WM_1(pipe), val * 2);
+ mdp5_write(mdp5_kms, REG_MDP5_PIPE_REQPRIO_FIFO_WM_2(pipe), val * 3);
+
+}
+
+int mdp5_plane_mode_set(struct drm_plane *plane,
+ struct drm_crtc *crtc, struct drm_framebuffer *fb,
+ int crtc_x, int crtc_y,
+ unsigned int crtc_w, unsigned int crtc_h,
+ uint32_t src_x, uint32_t src_y,
+ uint32_t src_w, uint32_t src_h)
+{
+ struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane);
+ struct mdp5_kms *mdp5_kms = get_kms(plane);
+ enum mdp5_pipe pipe = mdp5_plane->pipe;
+ const struct mdp_format *format;
+ uint32_t nplanes, config = 0;
+ uint32_t phasex_step = 0, phasey_step = 0;
+ uint32_t hdecm = 0, vdecm = 0;
+ int i, nblks;
+
+ nplanes = drm_format_num_planes(fb->pixel_format);
+
+ /* bad formats should already be rejected: */
+ if (WARN_ON(nplanes > pipe2nclients(pipe)))
+ return -EINVAL;
+
+ /* src values are in Q16 fixed point, convert to integer: */
+ src_x = src_x >> 16;
+ src_y = src_y >> 16;
+ src_w = src_w >> 16;
+ src_h = src_h >> 16;
+
+ DBG("%s: FB[%u] %u,%u,%u,%u -> CRTC[%u] %d,%d,%u,%u", mdp5_plane->name,
+ fb->base.id, src_x, src_y, src_w, src_h,
+ crtc->base.id, crtc_x, crtc_y, crtc_w, crtc_h);
+
+ /*
+ * Calculate and request required # of smp blocks:
+ */
+ nblks = request_smp_blocks(plane, fb->pixel_format, nplanes, src_w);
+ if (nblks < 0)
+ return nblks;
+
+ /*
+ * Currently we update the hw for allocations/requests immediately,
+ * but once atomic modeset/pageflip is in place, the allocation
+ * would move into atomic->check_plane_state(), while updating the
+ * hw would remain here:
+ */
+ for (i = 0; i < pipe2nclients(pipe); i++)
+ mdp5_smp_configure(mdp5_kms, pipe2client(pipe, i));
+
+ if (src_w != crtc_w) {
+ config |= MDP5_PIPE_SCALE_CONFIG_SCALEX_EN;
+ /* TODO calc phasex_step, hdecm */
+ }
+
+ if (src_h != crtc_h) {
+ config |= MDP5_PIPE_SCALE_CONFIG_SCALEY_EN;
+ /* TODO calc phasey_step, vdecm */
+ }
+
+ mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_IMG_SIZE(pipe),
+ MDP5_PIPE_SRC_IMG_SIZE_WIDTH(src_w) |
+ MDP5_PIPE_SRC_IMG_SIZE_HEIGHT(src_h));
+
+ mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_SIZE(pipe),
+ MDP5_PIPE_SRC_SIZE_WIDTH(src_w) |
+ MDP5_PIPE_SRC_SIZE_HEIGHT(src_h));
+
+ mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_XY(pipe),
+ MDP5_PIPE_SRC_XY_X(src_x) |
+ MDP5_PIPE_SRC_XY_Y(src_y));
+
+ mdp5_write(mdp5_kms, REG_MDP5_PIPE_OUT_SIZE(pipe),
+ MDP5_PIPE_OUT_SIZE_WIDTH(crtc_w) |
+ MDP5_PIPE_OUT_SIZE_HEIGHT(crtc_h));
+
+ mdp5_write(mdp5_kms, REG_MDP5_PIPE_OUT_XY(pipe),
+ MDP5_PIPE_OUT_XY_X(crtc_x) |
+ MDP5_PIPE_OUT_XY_Y(crtc_y));
+
+ mdp5_plane_set_scanout(plane, fb);
+
+ format = to_mdp_format(msm_framebuffer_format(fb));
+
+ mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_FORMAT(pipe),
+ MDP5_PIPE_SRC_FORMAT_A_BPC(format->bpc_a) |
+ MDP5_PIPE_SRC_FORMAT_R_BPC(format->bpc_r) |
+ MDP5_PIPE_SRC_FORMAT_G_BPC(format->bpc_g) |
+ MDP5_PIPE_SRC_FORMAT_B_BPC(format->bpc_b) |
+ COND(format->alpha_enable, MDP5_PIPE_SRC_FORMAT_ALPHA_ENABLE) |
+ MDP5_PIPE_SRC_FORMAT_CPP(format->cpp - 1) |
+ MDP5_PIPE_SRC_FORMAT_UNPACK_COUNT(format->unpack_count - 1) |
+ COND(format->unpack_tight, MDP5_PIPE_SRC_FORMAT_UNPACK_TIGHT) |
+ MDP5_PIPE_SRC_FORMAT_NUM_PLANES(nplanes - 1) |
+ MDP5_PIPE_SRC_FORMAT_CHROMA_SAMP(CHROMA_RGB));
+
+ mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_UNPACK(pipe),
+ MDP5_PIPE_SRC_UNPACK_ELEM0(format->unpack[0]) |
+ MDP5_PIPE_SRC_UNPACK_ELEM1(format->unpack[1]) |
+ MDP5_PIPE_SRC_UNPACK_ELEM2(format->unpack[2]) |
+ MDP5_PIPE_SRC_UNPACK_ELEM3(format->unpack[3]));
+
+ mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_OP_MODE(pipe),
+ MDP5_PIPE_SRC_OP_MODE_BWC(BWC_LOSSLESS));
+
+ /* not using secure mode: */
+ mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_ADDR_SW_STATUS(pipe), 0);
+
+ mdp5_write(mdp5_kms, REG_MDP5_PIPE_SCALE_PHASE_STEP_X(pipe), phasex_step);
+ mdp5_write(mdp5_kms, REG_MDP5_PIPE_SCALE_PHASE_STEP_Y(pipe), phasey_step);
+ mdp5_write(mdp5_kms, REG_MDP5_PIPE_DECIMATION(pipe),
+ MDP5_PIPE_DECIMATION_VERT(vdecm) |
+ MDP5_PIPE_DECIMATION_HORZ(hdecm));
+ mdp5_write(mdp5_kms, REG_MDP5_PIPE_SCALE_CONFIG(pipe),
+ MDP5_PIPE_SCALE_CONFIG_SCALEX_MIN_FILTER(SCALE_FILTER_NEAREST) |
+ MDP5_PIPE_SCALE_CONFIG_SCALEY_MIN_FILTER(SCALE_FILTER_NEAREST) |
+ MDP5_PIPE_SCALE_CONFIG_SCALEX_CR_FILTER(SCALE_FILTER_NEAREST) |
+ MDP5_PIPE_SCALE_CONFIG_SCALEY_CR_FILTER(SCALE_FILTER_NEAREST) |
+ MDP5_PIPE_SCALE_CONFIG_SCALEX_MAX_FILTER(SCALE_FILTER_NEAREST) |
+ MDP5_PIPE_SCALE_CONFIG_SCALEY_MAX_FILTER(SCALE_FILTER_NEAREST));
+
+ set_fifo_thresholds(plane, nblks);
+
+ /* TODO detach from old crtc (if we had more than one) */
+ mdp5_crtc_attach(crtc, plane);
+
+ return 0;
+}
+
+void mdp5_plane_complete_flip(struct drm_plane *plane)
+{
+ struct mdp5_kms *mdp5_kms = get_kms(plane);
+ enum mdp5_pipe pipe = to_mdp5_plane(plane)->pipe;
+ int i;
+
+ for (i = 0; i < pipe2nclients(pipe); i++)
+ mdp5_smp_commit(mdp5_kms, pipe2client(pipe, i));
+}
+
+enum mdp5_pipe mdp5_plane_pipe(struct drm_plane *plane)
+{
+ struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane);
+ return mdp5_plane->pipe;
+}
+
+/* initialize plane */
+struct drm_plane *mdp5_plane_init(struct drm_device *dev,
+ enum mdp5_pipe pipe, bool private_plane)
+{
+ struct drm_plane *plane = NULL;
+ struct mdp5_plane *mdp5_plane;
+ int ret;
+
+ mdp5_plane = kzalloc(sizeof(*mdp5_plane), GFP_KERNEL);
+ if (!mdp5_plane) {
+ ret = -ENOMEM;
+ goto fail;
+ }
+
+ plane = &mdp5_plane->base;
+
+ mdp5_plane->pipe = pipe;
+ mdp5_plane->name = pipe2name(pipe);
+
+ mdp5_plane->nformats = mdp5_get_formats(pipe, mdp5_plane->formats,
+ ARRAY_SIZE(mdp5_plane->formats));
+
+ drm_plane_init(dev, plane, 0xff, &mdp5_plane_funcs,
+ mdp5_plane->formats, mdp5_plane->nformats,
+ private_plane);
+
+ mdp5_plane_install_properties(plane, &plane->base);
+
+ return plane;
+
+fail:
+ if (plane)
+ mdp5_plane_destroy(plane);
+
+ return ERR_PTR(ret);
+}
--- /dev/null
+/*
+ * Copyright (C) 2013 Red Hat
+ * Author: Rob Clark <robdclark@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "mdp5_kms.h"
+#include "mdp5_smp.h"
+
+
+/* SMP - Shared Memory Pool
+ *
+ * These are shared between all the clients, where each plane in a
+ * scanout buffer is a SMP client. Ie. scanout of 3 plane I420 on
+ * pipe VIG0 => 3 clients: VIG0_Y, VIG0_CB, VIG0_CR.
+ *
+ * Based on the size of the attached scanout buffer, a certain # of
+ * blocks must be allocated to that client out of the shared pool.
+ *
+ * For each block, it can be either free, or pending/in-use by a
+ * client. The updates happen in three steps:
+ *
+ * 1) mdp5_smp_request():
+ * When plane scanout is setup, calculate required number of
+ * blocks needed per client, and request. Blocks not inuse or
+ * pending by any other client are added to client's pending
+ * set.
+ *
+ * 2) mdp5_smp_configure():
+ * As hw is programmed, before FLUSH, MDP5_SMP_ALLOC registers
+ * are configured for the union(pending, inuse)
+ *
+ * 3) mdp5_smp_commit():
+ * After next vblank, copy pending -> inuse. Optionally update
+ * MDP5_SMP_ALLOC registers if there are newly unused blocks
+ *
+ * On the next vblank after changes have been committed to hw, the
+ * client's pending blocks become it's in-use blocks (and no-longer
+ * in-use blocks become available to other clients).
+ *
+ * btw, hurray for confusing overloaded acronyms! :-/
+ *
+ * NOTE: for atomic modeset/pageflip NONBLOCK operations, step #1
+ * should happen at (or before)? atomic->check(). And we'd need
+ * an API to discard previous requests if update is aborted or
+ * (test-only).
+ *
+ * TODO would perhaps be nice to have debugfs to dump out kernel
+ * inuse and pending state of all clients..
+ */
+
+static DEFINE_SPINLOCK(smp_lock);
+
+
+/* step #1: update # of blocks pending for the client: */
+int mdp5_smp_request(struct mdp5_kms *mdp5_kms,
+ enum mdp5_client_id cid, int nblks)
+{
+ struct mdp5_client_smp_state *ps = &mdp5_kms->smp_client_state[cid];
+ int i, ret, avail, cur_nblks, cnt = mdp5_kms->smp_blk_cnt;
+ unsigned long flags;
+
+ spin_lock_irqsave(&smp_lock, flags);
+
+ avail = cnt - bitmap_weight(mdp5_kms->smp_state, cnt);
+ if (nblks > avail) {
+ ret = -ENOSPC;
+ goto fail;
+ }
+
+ cur_nblks = bitmap_weight(ps->pending, cnt);
+ if (nblks > cur_nblks) {
+ /* grow the existing pending reservation: */
+ for (i = cur_nblks; i < nblks; i++) {
+ int blk = find_first_zero_bit(mdp5_kms->smp_state, cnt);
+ set_bit(blk, ps->pending);
+ set_bit(blk, mdp5_kms->smp_state);
+ }
+ } else {
+ /* shrink the existing pending reservation: */
+ for (i = cur_nblks; i > nblks; i--) {
+ int blk = find_first_bit(ps->pending, cnt);
+ clear_bit(blk, ps->pending);
+ /* don't clear in global smp_state until _commit() */
+ }
+ }
+
+fail:
+ spin_unlock_irqrestore(&smp_lock, flags);
+ return 0;
+}
+
+static void update_smp_state(struct mdp5_kms *mdp5_kms,
+ enum mdp5_client_id cid, mdp5_smp_state_t *assigned)
+{
+ int cnt = mdp5_kms->smp_blk_cnt;
+ uint32_t blk, val;
+
+ for_each_set_bit(blk, *assigned, cnt) {
+ int idx = blk / 3;
+ int fld = blk % 3;
+
+ val = mdp5_read(mdp5_kms, REG_MDP5_SMP_ALLOC_W_REG(idx));
+
+ switch (fld) {
+ case 0:
+ val &= ~MDP5_SMP_ALLOC_W_REG_CLIENT0__MASK;
+ val |= MDP5_SMP_ALLOC_W_REG_CLIENT0(cid);
+ break;
+ case 1:
+ val &= ~MDP5_SMP_ALLOC_W_REG_CLIENT1__MASK;
+ val |= MDP5_SMP_ALLOC_W_REG_CLIENT1(cid);
+ break;
+ case 2:
+ val &= ~MDP5_SMP_ALLOC_W_REG_CLIENT2__MASK;
+ val |= MDP5_SMP_ALLOC_W_REG_CLIENT2(cid);
+ break;
+ }
+
+ mdp5_write(mdp5_kms, REG_MDP5_SMP_ALLOC_W_REG(idx), val);
+ mdp5_write(mdp5_kms, REG_MDP5_SMP_ALLOC_R_REG(idx), val);
+ }
+}
+
+/* step #2: configure hw for union(pending, inuse): */
+void mdp5_smp_configure(struct mdp5_kms *mdp5_kms, enum mdp5_client_id cid)
+{
+ struct mdp5_client_smp_state *ps = &mdp5_kms->smp_client_state[cid];
+ int cnt = mdp5_kms->smp_blk_cnt;
+ mdp5_smp_state_t assigned;
+
+ bitmap_or(assigned, ps->inuse, ps->pending, cnt);
+ update_smp_state(mdp5_kms, cid, &assigned);
+}
+
+/* step #3: after vblank, copy pending -> inuse: */
+void mdp5_smp_commit(struct mdp5_kms *mdp5_kms, enum mdp5_client_id cid)
+{
+ struct mdp5_client_smp_state *ps = &mdp5_kms->smp_client_state[cid];
+ int cnt = mdp5_kms->smp_blk_cnt;
+ mdp5_smp_state_t released;
+
+ /*
+ * Figure out if there are any blocks we where previously
+ * using, which can be released and made available to other
+ * clients:
+ */
+ if (bitmap_andnot(released, ps->inuse, ps->pending, cnt)) {
+ unsigned long flags;
+
+ spin_lock_irqsave(&smp_lock, flags);
+ /* clear released blocks: */
+ bitmap_andnot(mdp5_kms->smp_state, mdp5_kms->smp_state,
+ released, cnt);
+ spin_unlock_irqrestore(&smp_lock, flags);
+
+ update_smp_state(mdp5_kms, CID_UNUSED, &released);
+ }
+
+ bitmap_copy(ps->inuse, ps->pending, cnt);
+}
--- /dev/null
+/*
+ * Copyright (C) 2013 Red Hat
+ * Author: Rob Clark <robdclark@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __MDP5_SMP_H__
+#define __MDP5_SMP_H__
+
+#include "msm_drv.h"
+
+#define MAX_SMP_BLOCKS 22
+#define SMP_BLK_SIZE 4096
+#define SMP_ENTRIES_PER_BLK (SMP_BLK_SIZE / 16)
+
+typedef DECLARE_BITMAP(mdp5_smp_state_t, MAX_SMP_BLOCKS);
+
+struct mdp5_client_smp_state {
+ mdp5_smp_state_t inuse;
+ mdp5_smp_state_t pending;
+};
+
+struct mdp5_kms;
+
+int mdp5_smp_request(struct mdp5_kms *mdp5_kms, enum mdp5_client_id cid, int nblks);
+void mdp5_smp_configure(struct mdp5_kms *mdp5_kms, enum mdp5_client_id cid);
+void mdp5_smp_commit(struct mdp5_kms *mdp5_kms, enum mdp5_client_id cid);
+
+
+#endif /* __MDP5_SMP_H__ */
return 0;
}
+static int get_mdp_ver(struct platform_device *pdev)
+{
+#ifdef CONFIG_OF
+ const static struct of_device_id match_types[] = { {
+ .compatible = "qcom,mdss_mdp",
+ .data = (void *)5,
+ }, {
+ /* end node */
+ } };
+ struct device *dev = &pdev->dev;
+ const struct of_device_id *match;
+ match = of_match_node(match_types, dev->of_node);
+ if (match)
+ return (int)match->data;
+#endif
+ return 4;
+}
+
static int msm_load(struct drm_device *dev, unsigned long flags)
{
struct platform_device *pdev = dev->platformdev;
(uint32_t)(priv->vram.paddr + size));
}
- kms = mdp4_kms_init(dev);
+ switch (get_mdp_ver(pdev)) {
+ case 4:
+ kms = mdp4_kms_init(dev);
+ break;
+ case 5:
+ kms = mdp5_kms_init(dev);
+ break;
+ default:
+ kms = ERR_PTR(-ENODEV);
+ break;
+ }
+
if (IS_ERR(kms)) {
/*
* NOTE: once we have GPU support, having no kms should not
{ }
};
+static const struct of_device_id dt_match[] = {
+ { .compatible = "qcom,mdss_mdp" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, dt_match);
+
static struct platform_driver msm_platform_driver = {
.probe = msm_pdev_probe,
.remove = msm_pdev_remove,
.driver = {
.owner = THIS_MODULE,
.name = "msm",
+ .of_match_table = dt_match,
.pm = &msm_pm_ops,
},
.id_table = msm_id,
}
struct msm_kms *mdp4_kms_init(struct drm_device *dev);
+struct msm_kms *mdp5_kms_init(struct drm_device *dev);
#endif /* __MSM_KMS_H__ */
projects / GitHub / MotorolaMobilityLLC / kernel-slsi.git / commitdiff