mdp_irq_register(&get_kms(crtc)->base, &mdp5_crtc->vblank);
}
-#define mdp5_lm_get_flush(lm) mdp_ctl_flush_mask_lm(lm)
-
static void crtc_flush(struct drm_crtc *crtc, u32 flush_mask)
{
struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
drm_atomic_crtc_for_each_plane(plane, crtc) {
flush_mask |= mdp5_plane_get_flush(plane);
}
- flush_mask |= mdp5_ctl_get_flush(mdp5_crtc->ctl);
- flush_mask |= mdp5_lm_get_flush(mdp5_crtc->lm);
+
+ flush_mask |= mdp_ctl_flush_mask_lm(mdp5_crtc->lm);
crtc_flush(crtc, flush_mask);
}
struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
struct drm_device *dev = crtc->dev;
struct mdp5_kms *mdp5_kms = get_kms(crtc);
- struct drm_gem_object *cursor_bo, *old_bo;
+ struct drm_gem_object *cursor_bo, *old_bo = NULL;
uint32_t blendcfg, cursor_addr, stride;
int ret, bpp, lm;
unsigned int depth;
enum mdp5_cursor_alpha cur_alpha = CURSOR_ALPHA_PER_PIXEL;
uint32_t flush_mask = mdp_ctl_flush_mask_cursor(0);
uint32_t roi_w, roi_h;
+ bool cursor_enable = true;
unsigned long flags;
if ((width > CURSOR_WIDTH) || (height > CURSOR_HEIGHT)) {
if (!handle) {
DBG("Cursor off");
- return mdp5_ctl_set_cursor(mdp5_crtc->ctl, false);
+ cursor_enable = false;
+ goto set_cursor;
}
cursor_bo = drm_gem_object_lookup(dev, file, handle);
spin_unlock_irqrestore(&mdp5_crtc->cursor.lock, flags);
- ret = mdp5_ctl_set_cursor(mdp5_crtc->ctl, true);
- if (ret)
+set_cursor:
+ ret = mdp5_ctl_set_cursor(mdp5_crtc->ctl, 0, cursor_enable);
+ if (ret) {
+ dev_err(dev->dev, "failed to %sable cursor: %d\n",
+ cursor_enable ? "en" : "dis", ret);
goto end;
+ }
- flush_mask |= mdp5_ctl_get_flush(mdp5_crtc->ctl);
crtc_flush(crtc, flush_mask);
end:
int mdp5_crtc_get_lm(struct drm_crtc *crtc)
{
struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+ return WARN_ON(!crtc) ? -EINVAL : mdp5_crtc->lm;
+}
- if (WARN_ON(!crtc))
- return -EINVAL;
-
- return mdp5_crtc->lm;
+struct mdp5_ctl *mdp5_crtc_get_ctl(struct drm_crtc *crtc)
+{
+ struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+ return WARN_ON(!crtc) ? NULL : mdp5_crtc->ctl;
}
/* initialize crtc */
/*
- * Copyright (c) 2014 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2014-2015 The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
struct op_mode {
struct mdp5_interface intf;
- /*
- * TODO: add a state variable to control the pipeline
- *
- * eg: WB interface needs both buffer addresses to be committed +
- * output buffers ready to be written into, before we can START.
- */
+
+ bool encoder_enabled;
+ uint32_t start_mask;
};
struct mdp5_ctl {
struct mdp5_ctl_manager *ctlm;
u32 id;
+ int lm;
/* whether this CTL has been allocated or not: */
bool busy;
spinlock_t hw_lock;
u32 reg_offset;
- /* flush mask used to commit CTL registers */
- u32 flush_mask;
+ /* when do CTL registers need to be flushed? (mask of trigger bits) */
+ u32 pending_ctl_trigger;
bool cursor_on;
u32 nlm;
u32 nctl;
+ /* to filter out non-present bits in the current hardware config */
+ u32 flush_hw_mask;
+
/* pool of CTLs + lock to protect resource allocation (ctls[i].busy) */
spinlock_t pool_lock;
struct mdp5_ctl ctls[MAX_CTL];
memcpy(&ctl->pipeline.intf, intf, sizeof(*intf));
+ ctl->pipeline.start_mask = mdp_ctl_flush_mask_lm(ctl->lm) |
+ mdp_ctl_flush_mask_encoder(intf);
+
/* Virtual interfaces need not set a display intf (e.g.: Writeback) */
if (!mdp5_cfg_intf_is_virtual(intf->type))
set_display_intf(mdp5_kms, intf);
return 0;
}
-int mdp5_ctl_set_cursor(struct mdp5_ctl *ctl, bool enable)
+static bool start_signal_needed(struct mdp5_ctl *ctl)
+{
+ struct op_mode *pipeline = &ctl->pipeline;
+
+ if (!pipeline->encoder_enabled || pipeline->start_mask != 0)
+ return false;
+
+ switch (pipeline->intf.type) {
+ case INTF_WB:
+ return true;
+ case INTF_DSI:
+ return pipeline->intf.mode == MDP5_INTF_DSI_MODE_COMMAND;
+ default:
+ return false;
+ }
+}
+
+/*
+ * send_start_signal() - Overlay Processor Start Signal
+ *
+ * For a given control operation (display pipeline), a START signal needs to be
+ * executed in order to kick off operation and activate all layers.
+ * e.g.: DSI command mode, Writeback
+ */
+static void send_start_signal(struct mdp5_ctl *ctl)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&ctl->hw_lock, flags);
+ ctl_write(ctl, REG_MDP5_CTL_START(ctl->id), 1);
+ spin_unlock_irqrestore(&ctl->hw_lock, flags);
+}
+
+static void refill_start_mask(struct mdp5_ctl *ctl)
+{
+ struct op_mode *pipeline = &ctl->pipeline;
+ struct mdp5_interface *intf = &ctl->pipeline.intf;
+
+ pipeline->start_mask = mdp_ctl_flush_mask_lm(ctl->lm);
+
+ /*
+ * Writeback encoder needs to program & flush
+ * address registers for each page flip..
+ */
+ if (intf->type == INTF_WB)
+ pipeline->start_mask |= mdp_ctl_flush_mask_encoder(intf);
+}
+
+/**
+ * mdp5_ctl_set_encoder_state() - set the encoder state
+ *
+ * @enable: true, when encoder is ready for data streaming; false, otherwise.
+ *
+ * Note:
+ * This encoder state is needed to trigger START signal (data path kickoff).
+ */
+int mdp5_ctl_set_encoder_state(struct mdp5_ctl *ctl, bool enabled)
+{
+ if (WARN_ON(!ctl))
+ return -EINVAL;
+
+ ctl->pipeline.encoder_enabled = enabled;
+ DBG("intf_%d: %s", ctl->pipeline.intf.num, enabled ? "on" : "off");
+
+ if (start_signal_needed(ctl)) {
+ send_start_signal(ctl);
+ refill_start_mask(ctl);
+ }
+
+ return 0;
+}
+
+/*
+ * Note:
+ * CTL registers need to be flushed after calling this function
+ * (call mdp5_ctl_commit() with mdp_ctl_flush_mask_ctl() mask)
+ */
+int mdp5_ctl_set_cursor(struct mdp5_ctl *ctl, int cursor_id, bool enable)
{
struct mdp5_ctl_manager *ctl_mgr = ctl->ctlm;
unsigned long flags;
u32 blend_cfg;
- int lm;
+ int lm = ctl->lm;
- lm = mdp5_crtc_get_lm(ctl->crtc);
if (unlikely(WARN_ON(lm < 0))) {
dev_err(ctl_mgr->dev->dev, "CTL %d cannot find LM: %d",
ctl->id, lm);
spin_unlock_irqrestore(&ctl->hw_lock, flags);
+ ctl->pending_ctl_trigger = mdp_ctl_flush_mask_cursor(cursor_id);
ctl->cursor_on = enable;
return 0;
}
-
int mdp5_ctl_blend(struct mdp5_ctl *ctl, u32 lm, u32 blend_cfg)
{
unsigned long flags;
ctl_write(ctl, REG_MDP5_CTL_LAYER_REG(ctl->id, lm), blend_cfg);
spin_unlock_irqrestore(&ctl->hw_lock, flags);
+ ctl->pending_ctl_trigger = mdp_ctl_flush_mask_lm(lm);
+
return 0;
}
+u32 mdp_ctl_flush_mask_encoder(struct mdp5_interface *intf)
+{
+ /* these are dummy bits for now, but will appear in next chipsets: */
+#define MDP5_CTL_FLUSH_TIMING_0 0x80000000
+#define MDP5_CTL_FLUSH_TIMING_1 0x40000000
+#define MDP5_CTL_FLUSH_TIMING_2 0x20000000
+#define MDP5_CTL_FLUSH_TIMING_3 0x10000000
+#define MDP5_CTL_FLUSH_WB 0x00010000
+
+ if (intf->type == INTF_WB)
+ return MDP5_CTL_FLUSH_WB;
+
+ switch (intf->num) {
+ case 0: return MDP5_CTL_FLUSH_TIMING_0;
+ case 1: return MDP5_CTL_FLUSH_TIMING_1;
+ case 2: return MDP5_CTL_FLUSH_TIMING_2;
+ case 3: return MDP5_CTL_FLUSH_TIMING_3;
+ default: return 0;
+ }
+}
+
+u32 mdp_ctl_flush_mask_cursor(int cursor_id)
+{
+ /* these are dummy bits for now, but will appear in next chipsets: */
+#define MDP5_CTL_FLUSH_CURSOR_0 0x00400000
+#define MDP5_CTL_FLUSH_CURSOR_1 0x00800000
+
+ switch (cursor_id) {
+ case 0: return MDP5_CTL_FLUSH_CURSOR_0;
+ case 1: return MDP5_CTL_FLUSH_CURSOR_1;
+ default: return 0;
+ }
+}
+
+u32 mdp_ctl_flush_mask_pipe(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;
+ case SSPP_VIG3: return MDP5_CTL_FLUSH_VIG3;
+ case SSPP_RGB3: return MDP5_CTL_FLUSH_RGB3;
+ default: return 0;
+ }
+}
+
+u32 mdp_ctl_flush_mask_lm(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;
+ case 5: return MDP5_CTL_FLUSH_LM5;
+ default: return 0;
+ }
+}
+
+static u32 fix_sw_flush(struct mdp5_ctl *ctl, u32 flush_mask)
+{
+ struct mdp5_ctl_manager *ctl_mgr = ctl->ctlm;
+ u32 sw_mask = 0;
+#define BIT_NEEDS_SW_FIX(bit) \
+ (!(ctl_mgr->flush_hw_mask & bit) && (flush_mask & bit))
+
+ /* for some targets, cursor bit is the same as LM bit */
+ if (BIT_NEEDS_SW_FIX(MDP5_CTL_FLUSH_CURSOR_0))
+ sw_mask |= mdp_ctl_flush_mask_lm(ctl->lm);
+
+ return sw_mask;
+}
+
+/**
+ * mdp5_ctl_commit() - Register Flush
+ *
+ * The flush register is used to indicate several registers are all
+ * programmed, and are safe to update to the back copy of the double
+ * buffered registers.
+ *
+ * Some registers FLUSH bits are shared when the hardware does not have
+ * dedicated bits for them; handling these is the job of fix_sw_flush().
+ *
+ * CTL registers need to be flushed in some circumstances; if that is the
+ * case, some trigger bits will be present in both flush mask and
+ * ctl->pending_ctl_trigger.
+ */
int mdp5_ctl_commit(struct mdp5_ctl *ctl, u32 flush_mask)
{
struct mdp5_ctl_manager *ctl_mgr = ctl->ctlm;
+ struct op_mode *pipeline = &ctl->pipeline;
unsigned long flags;
- if (flush_mask & MDP5_CTL_FLUSH_CURSOR_DUMMY) {
- int lm = mdp5_crtc_get_lm(ctl->crtc);
+ pipeline->start_mask &= ~flush_mask;
- if (unlikely(WARN_ON(lm < 0))) {
- dev_err(ctl_mgr->dev->dev, "CTL %d cannot find LM: %d",
- ctl->id, lm);
- return -EINVAL;
- }
+ VERB("flush_mask=%x, start_mask=%x, trigger=%x", flush_mask,
+ pipeline->start_mask, ctl->pending_ctl_trigger);
- /* for current targets, cursor bit is the same as LM bit */
- flush_mask |= mdp_ctl_flush_mask_lm(lm);
+ if (ctl->pending_ctl_trigger & flush_mask) {
+ flush_mask |= MDP5_CTL_FLUSH_CTL;
+ ctl->pending_ctl_trigger = 0;
}
- spin_lock_irqsave(&ctl->hw_lock, flags);
- ctl_write(ctl, REG_MDP5_CTL_FLUSH(ctl->id), flush_mask);
- spin_unlock_irqrestore(&ctl->hw_lock, flags);
+ flush_mask |= fix_sw_flush(ctl, flush_mask);
- return 0;
-}
+ flush_mask &= ctl_mgr->flush_hw_mask;
-u32 mdp5_ctl_get_flush(struct mdp5_ctl *ctl)
-{
- return ctl->flush_mask;
+ if (flush_mask) {
+ spin_lock_irqsave(&ctl->hw_lock, flags);
+ ctl_write(ctl, REG_MDP5_CTL_FLUSH(ctl->id), flush_mask);
+ spin_unlock_irqrestore(&ctl->hw_lock, flags);
+ }
+
+ if (start_signal_needed(ctl)) {
+ send_start_signal(ctl);
+ refill_start_mask(ctl);
+ }
+
+ return 0;
}
void mdp5_ctl_release(struct mdp5_ctl *ctl)
DBG("CTL %d released", ctl->id);
}
+int mdp5_ctl_get_ctl_id(struct mdp5_ctl *ctl)
+{
+ return WARN_ON(!ctl) ? -EINVAL : ctl->id;
+}
+
/*
* mdp5_ctl_request() - CTL dynamic allocation
*
ctl = &ctl_mgr->ctls[c];
+ ctl->lm = mdp5_crtc_get_lm(crtc);
ctl->crtc = crtc;
ctl->busy = true;
+ ctl->pending_ctl_trigger = 0;
DBG("CTL %d allocated", ctl->id);
unlock:
void __iomem *mmio_base, const struct mdp5_cfg_hw *hw_cfg)
{
struct mdp5_ctl_manager *ctl_mgr;
- const struct mdp5_sub_block *ctl_cfg = &hw_cfg->ctl;
+ const struct mdp5_ctl_block *ctl_cfg = &hw_cfg->ctl;
unsigned long flags;
int c, ret;
ctl_mgr->dev = dev;
ctl_mgr->nlm = hw_cfg->lm.count;
ctl_mgr->nctl = ctl_cfg->count;
+ ctl_mgr->flush_hw_mask = ctl_cfg->flush_hw_mask;
spin_lock_init(&ctl_mgr->pool_lock);
/* initialize each CTL of the pool: */
ctl->ctlm = ctl_mgr;
ctl->id = c;
ctl->reg_offset = ctl_cfg->base[c];
- ctl->flush_mask = MDP5_CTL_FLUSH_CTL;
ctl->busy = false;
spin_lock_init(&ctl->hw_lock);
}
* which is then used to call the other mdp5_ctl_*(ctl, ...) functions.
*/
struct mdp5_ctl *mdp5_ctlm_request(struct mdp5_ctl_manager *ctlm, struct drm_crtc *crtc);
+int mdp5_ctl_get_ctl_id(struct mdp5_ctl *ctl);
struct mdp5_interface;
int mdp5_ctl_set_intf(struct mdp5_ctl *ctl, struct mdp5_interface *intf);
+int mdp5_ctl_set_encoder_state(struct mdp5_ctl *ctl, bool enabled);
-int mdp5_ctl_set_cursor(struct mdp5_ctl *ctl, bool enable);
-
-/* @blend_cfg: see LM blender config definition below */
-int mdp5_ctl_blend(struct mdp5_ctl *ctl, u32 lm, u32 blend_cfg);
-
-/* @flush_mask: see CTL flush masks definitions below */
-int mdp5_ctl_commit(struct mdp5_ctl *ctl, u32 flush_mask);
-u32 mdp5_ctl_get_flush(struct mdp5_ctl *ctl);
-
-void mdp5_ctl_release(struct mdp5_ctl *ctl);
+int mdp5_ctl_set_cursor(struct mdp5_ctl *ctl, int cursor_id, bool enable);
/*
* blend_cfg (LM blender config):
}
/*
- * flush_mask (CTL flush masks):
+ * mdp5_ctl_blend() - Blend multiple layers on a Layer Mixer (LM)
+ *
+ * @blend_cfg: see LM blender config definition below
*
- * The following functions allow each DRM entity to get and store
- * their own flush mask.
- * Once stored, these masks will then be accessed through each DRM's
- * interface and used by the caller of mdp5_ctl_commit() to specify
- * which block(s) need to be flushed through @flush_mask parameter.
+ * Note:
+ * CTL registers need to be flushed after calling this function
+ * (call mdp5_ctl_commit() with mdp_ctl_flush_mask_ctl() mask)
*/
+int mdp5_ctl_blend(struct mdp5_ctl *ctl, u32 lm, u32 blend_cfg);
-#define MDP5_CTL_FLUSH_CURSOR_DUMMY 0x80000000
+/**
+ * mdp_ctl_flush_mask...() - Register FLUSH masks
+ *
+ * These masks are used to specify which block(s) need to be flushed
+ * through @flush_mask parameter in mdp5_ctl_commit(.., flush_mask).
+ */
+u32 mdp_ctl_flush_mask_lm(int lm);
+u32 mdp_ctl_flush_mask_pipe(enum mdp5_pipe pipe);
+u32 mdp_ctl_flush_mask_cursor(int cursor_id);
+u32 mdp_ctl_flush_mask_encoder(struct mdp5_interface *intf);
-static inline u32 mdp_ctl_flush_mask_cursor(int cursor_id)
-{
- /* TODO: use id once multiple cursor support is present */
- (void)cursor_id;
+/* @flush_mask: see CTL flush masks definitions below */
+int mdp5_ctl_commit(struct mdp5_ctl *ctl, u32 flush_mask);
- return MDP5_CTL_FLUSH_CURSOR_DUMMY;
-}
+void mdp5_ctl_release(struct mdp5_ctl *ctl);
-static inline u32 mdp_ctl_flush_mask_lm(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;
- case 5: return MDP5_CTL_FLUSH_LM5;
- default: return 0;
- }
-}
-static inline u32 mdp_ctl_flush_mask_pipe(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;
- case SSPP_VIG3: return MDP5_CTL_FLUSH_VIG3;
- case SSPP_RGB3: return MDP5_CTL_FLUSH_RGB3;
- default: return 0;
- }
-}
#endif /* __MDP5_CTL_H__ */
mdp5_write(mdp5_kms, REG_MDP5_INTF_FRAME_LINE_COUNT_EN(intf), 0x3); /* frame+line? */
spin_unlock_irqrestore(&mdp5_encoder->intf_lock, flags);
+
+ mdp5_crtc_set_intf(encoder->crtc, &mdp5_encoder->intf);
}
static void mdp5_encoder_disable(struct drm_encoder *encoder)
{
struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
struct mdp5_kms *mdp5_kms = get_kms(encoder);
+ struct mdp5_ctl *ctl = mdp5_crtc_get_ctl(encoder->crtc);
int lm = mdp5_crtc_get_lm(encoder->crtc);
struct mdp5_interface *intf = &mdp5_encoder->intf;
int intfn = mdp5_encoder->intf.num;
if (WARN_ON(!mdp5_encoder->enabled))
return;
+ mdp5_ctl_set_encoder_state(ctl, false);
+
spin_lock_irqsave(&mdp5_encoder->intf_lock, flags);
mdp5_write(mdp5_kms, REG_MDP5_INTF_TIMING_ENGINE_EN(intfn), 0);
spin_unlock_irqrestore(&mdp5_encoder->intf_lock, flags);
+ mdp5_ctl_commit(ctl, mdp_ctl_flush_mask_encoder(intf));
/*
* Wait for a vsync so we know the ENABLE=0 latched before
{
struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
struct mdp5_kms *mdp5_kms = get_kms(encoder);
+ struct mdp5_ctl *ctl = mdp5_crtc_get_ctl(encoder->crtc);
+ struct mdp5_interface *intf = &mdp5_encoder->intf;
int intfn = mdp5_encoder->intf.num;
unsigned long flags;
if (WARN_ON(mdp5_encoder->enabled))
return;
- mdp5_crtc_set_intf(encoder->crtc, &mdp5_encoder->intf);
-
bs_set(mdp5_encoder, 1);
spin_lock_irqsave(&mdp5_encoder->intf_lock, flags);
mdp5_write(mdp5_kms, REG_MDP5_INTF_TIMING_ENGINE_EN(intfn), 1);
spin_unlock_irqrestore(&mdp5_encoder->intf_lock, flags);
+ mdp5_ctl_commit(ctl, mdp_ctl_flush_mask_encoder(intf));
+
+ mdp5_ctl_set_encoder_state(ctl, true);
mdp5_encoder->enabled = true;
}
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff