1 // SPDX-License-Identifier: GPL-2.0-only
3 * Hisilicon Hi6220 SoC ADE(Advanced Display Engine)'s crtc&plane driver
5 * Copyright (c) 2016 Linaro Limited.
6 * Copyright (c) 2014-2016 Hisilicon Limited.
9 * Xinliang Liu <z.liuxinliang@hisilicon.com>
10 * Xinliang Liu <xinliang.liu@linaro.org>
11 * Xinwei Kong <kong.kongxinwei@hisilicon.com>
14 #include <linux/bitops.h>
15 #include <linux/clk.h>
16 #include <linux/mfd/syscon.h>
17 #include <linux/platform_device.h>
18 #include <linux/regmap.h>
19 #include <linux/reset.h>
21 #include <video/display_timing.h>
23 #include <drm/drm_atomic.h>
24 #include <drm/drm_atomic_helper.h>
25 #include <drm/drm_crtc.h>
26 #include <drm/drm_drv.h>
27 #include <drm/drm_fb_cma_helper.h>
28 #include <drm/drm_fourcc.h>
29 #include <drm/drm_gem_cma_helper.h>
30 #include <drm/drm_plane_helper.h>
31 #include <drm/drm_probe_helper.h>
32 #include <drm/drm_vblank.h>
33 #include <drm/drm_gem_framebuffer_helper.h>
35 #include "kirin_drm_drv.h"
36 #include "kirin_ade_reg.h"
38 #define OUT_OVLY ADE_OVLY2 /* output overlay compositor */
44 struct regmap *noc_regmap;
45 struct clk *ade_core_clk;
46 struct clk *media_noc_clk;
47 struct clk *ade_pix_clk;
48 struct reset_control *reset;
49 struct work_struct display_reset_wq;
53 struct drm_crtc *crtc;
57 struct kirin_crtc crtc;
58 struct kirin_plane planes[ADE_CH_NUM];
59 struct ade_hw_ctx *hw_ctx;
62 /* ade-format info: */
63 static const struct kirin_format ade_formats[] = {
65 { DRM_FORMAT_RGB565, ADE_RGB_565 },
66 { DRM_FORMAT_BGR565, ADE_BGR_565 },
68 { DRM_FORMAT_RGB888, ADE_RGB_888 },
69 { DRM_FORMAT_BGR888, ADE_BGR_888 },
71 { DRM_FORMAT_XRGB8888, ADE_XRGB_8888 },
72 { DRM_FORMAT_XBGR8888, ADE_XBGR_8888 },
73 { DRM_FORMAT_RGBA8888, ADE_RGBA_8888 },
74 { DRM_FORMAT_BGRA8888, ADE_BGRA_8888 },
75 { DRM_FORMAT_ARGB8888, ADE_ARGB_8888 },
76 { DRM_FORMAT_ABGR8888, ADE_ABGR_8888 },
79 static const u32 channel_formats[] = {
81 DRM_FORMAT_RGB565, DRM_FORMAT_BGR565, DRM_FORMAT_RGB888,
82 DRM_FORMAT_BGR888, DRM_FORMAT_XRGB8888, DRM_FORMAT_XBGR8888,
83 DRM_FORMAT_RGBA8888, DRM_FORMAT_BGRA8888, DRM_FORMAT_ARGB8888,
87 /* convert from fourcc format to ade format */
88 static u32 ade_get_format(u32 pixel_format)
92 for (i = 0; i < ARRAY_SIZE(ade_formats); i++)
93 if (ade_formats[i].pixel_format == pixel_format)
94 return ade_formats[i].hw_format;
97 DRM_ERROR("Not found pixel format!!fourcc_format= %d\n",
99 return ADE_FORMAT_UNSUPPORT;
102 static void ade_update_reload_bit(void __iomem *base, u32 bit_num, u32 val)
104 u32 bit_ofst, reg_num;
106 bit_ofst = bit_num % 32;
107 reg_num = bit_num / 32;
109 ade_update_bits(base + ADE_RELOAD_DIS(reg_num), bit_ofst,
113 static u32 ade_read_reload_bit(void __iomem *base, u32 bit_num)
115 u32 tmp, bit_ofst, reg_num;
117 bit_ofst = bit_num % 32;
118 reg_num = bit_num / 32;
120 tmp = readl(base + ADE_RELOAD_DIS(reg_num));
121 return !!(BIT(bit_ofst) & tmp);
124 static void ade_init(struct ade_hw_ctx *ctx)
126 void __iomem *base = ctx->base;
128 /* enable clk gate */
129 ade_update_bits(base + ADE_CTRL1, AUTO_CLK_GATE_EN_OFST,
130 AUTO_CLK_GATE_EN, ADE_ENABLE);
132 writel(0, base + ADE_OVLY1_TRANS_CFG);
133 writel(0, base + ADE_OVLY_CTL);
134 writel(0, base + ADE_OVLYX_CTL(OUT_OVLY));
135 /* clear reset and reload regs */
136 writel(MASK(32), base + ADE_SOFT_RST_SEL(0));
137 writel(MASK(32), base + ADE_SOFT_RST_SEL(1));
138 writel(MASK(32), base + ADE_RELOAD_DIS(0));
139 writel(MASK(32), base + ADE_RELOAD_DIS(1));
141 * for video mode, all the ade registers should
142 * become effective at frame end.
144 ade_update_bits(base + ADE_CTRL, FRM_END_START_OFST,
145 FRM_END_START_MASK, REG_EFFECTIVE_IN_ADEEN_FRMEND);
146 ade_update_bits(base + LDI_INT_EN, UNDERFLOW_INT_EN_OFST, MASK(1), 1);
149 static bool ade_crtc_mode_fixup(struct drm_crtc *crtc,
150 const struct drm_display_mode *mode,
151 struct drm_display_mode *adjusted_mode)
153 struct kirin_crtc *kcrtc = to_kirin_crtc(crtc);
154 struct ade_hw_ctx *ctx = kcrtc->hw_ctx;
156 adjusted_mode->clock =
157 clk_round_rate(ctx->ade_pix_clk, mode->clock * 1000) / 1000;
162 static void ade_set_pix_clk(struct ade_hw_ctx *ctx,
163 struct drm_display_mode *mode,
164 struct drm_display_mode *adj_mode)
166 u32 clk_Hz = mode->clock * 1000;
170 * Success should be guaranteed in mode_valid call back,
171 * so failure shouldn't happen here
173 ret = clk_set_rate(ctx->ade_pix_clk, clk_Hz);
175 DRM_ERROR("failed to set pixel clk %dHz (%d)\n", clk_Hz, ret);
176 adj_mode->clock = clk_get_rate(ctx->ade_pix_clk) / 1000;
179 static void ade_ldi_set_mode(struct ade_hw_ctx *ctx,
180 struct drm_display_mode *mode,
181 struct drm_display_mode *adj_mode)
183 void __iomem *base = ctx->base;
184 u32 width = mode->hdisplay;
185 u32 height = mode->vdisplay;
186 u32 hfp, hbp, hsw, vfp, vbp, vsw;
189 plr_flags = (mode->flags & DRM_MODE_FLAG_NVSYNC) ? FLAG_NVSYNC : 0;
190 plr_flags |= (mode->flags & DRM_MODE_FLAG_NHSYNC) ? FLAG_NHSYNC : 0;
191 hfp = mode->hsync_start - mode->hdisplay;
192 hbp = mode->htotal - mode->hsync_end;
193 hsw = mode->hsync_end - mode->hsync_start;
194 vfp = mode->vsync_start - mode->vdisplay;
195 vbp = mode->vtotal - mode->vsync_end;
196 vsw = mode->vsync_end - mode->vsync_start;
198 DRM_DEBUG_DRIVER("vsw exceeded 15\n");
202 writel((hbp << HBP_OFST) | hfp, base + LDI_HRZ_CTRL0);
203 /* the configured value is actual value - 1 */
204 writel(hsw - 1, base + LDI_HRZ_CTRL1);
205 writel((vbp << VBP_OFST) | vfp, base + LDI_VRT_CTRL0);
206 /* the configured value is actual value - 1 */
207 writel(vsw - 1, base + LDI_VRT_CTRL1);
208 /* the configured value is actual value - 1 */
209 writel(((height - 1) << VSIZE_OFST) | (width - 1),
210 base + LDI_DSP_SIZE);
211 writel(plr_flags, base + LDI_PLR_CTRL);
213 /* set overlay compositor output size */
214 writel(((width - 1) << OUTPUT_XSIZE_OFST) | (height - 1),
215 base + ADE_OVLY_OUTPUT_SIZE(OUT_OVLY));
218 writel(CTRAN_BYPASS_ON, base + ADE_CTRAN_DIS(ADE_CTRAN6));
219 /* the configured value is actual value - 1 */
220 writel(width * height - 1, base + ADE_CTRAN_IMAGE_SIZE(ADE_CTRAN6));
221 ade_update_reload_bit(base, CTRAN_OFST + ADE_CTRAN6, 0);
223 ade_set_pix_clk(ctx, mode, adj_mode);
225 DRM_DEBUG_DRIVER("set mode: %dx%d\n", width, height);
228 static int ade_power_up(struct ade_hw_ctx *ctx)
232 ret = clk_prepare_enable(ctx->media_noc_clk);
234 DRM_ERROR("failed to enable media_noc_clk (%d)\n", ret);
238 ret = reset_control_deassert(ctx->reset);
240 DRM_ERROR("failed to deassert reset\n");
244 ret = clk_prepare_enable(ctx->ade_core_clk);
246 DRM_ERROR("failed to enable ade_core_clk (%d)\n", ret);
251 ctx->power_on = true;
255 static void ade_power_down(struct ade_hw_ctx *ctx)
257 void __iomem *base = ctx->base;
259 writel(ADE_DISABLE, base + LDI_CTRL);
261 writel(DSI_PCLK_OFF, base + LDI_HDMI_DSI_GT);
263 clk_disable_unprepare(ctx->ade_core_clk);
264 reset_control_assert(ctx->reset);
265 clk_disable_unprepare(ctx->media_noc_clk);
266 ctx->power_on = false;
269 static void ade_set_medianoc_qos(struct ade_hw_ctx *ctx)
271 struct regmap *map = ctx->noc_regmap;
273 regmap_update_bits(map, ADE0_QOSGENERATOR_MODE,
274 QOSGENERATOR_MODE_MASK, BYPASS_MODE);
275 regmap_update_bits(map, ADE0_QOSGENERATOR_EXTCONTROL,
276 SOCKET_QOS_EN, SOCKET_QOS_EN);
278 regmap_update_bits(map, ADE1_QOSGENERATOR_MODE,
279 QOSGENERATOR_MODE_MASK, BYPASS_MODE);
280 regmap_update_bits(map, ADE1_QOSGENERATOR_EXTCONTROL,
281 SOCKET_QOS_EN, SOCKET_QOS_EN);
284 static int ade_crtc_enable_vblank(struct drm_crtc *crtc)
286 struct kirin_crtc *kcrtc = to_kirin_crtc(crtc);
287 struct ade_hw_ctx *ctx = kcrtc->hw_ctx;
288 void __iomem *base = ctx->base;
291 (void)ade_power_up(ctx);
293 ade_update_bits(base + LDI_INT_EN, FRAME_END_INT_EN_OFST,
299 static void ade_crtc_disable_vblank(struct drm_crtc *crtc)
301 struct kirin_crtc *kcrtc = to_kirin_crtc(crtc);
302 struct ade_hw_ctx *ctx = kcrtc->hw_ctx;
303 void __iomem *base = ctx->base;
305 if (!ctx->power_on) {
306 DRM_ERROR("power is down! vblank disable fail\n");
310 ade_update_bits(base + LDI_INT_EN, FRAME_END_INT_EN_OFST,
314 static void drm_underflow_wq(struct work_struct *work)
316 struct ade_hw_ctx *ctx = container_of(work, struct ade_hw_ctx,
318 struct drm_device *drm_dev = ctx->crtc->dev;
319 struct drm_atomic_state *state;
321 state = drm_atomic_helper_suspend(drm_dev);
322 drm_atomic_helper_resume(drm_dev, state);
325 static irqreturn_t ade_irq_handler(int irq, void *data)
327 struct ade_hw_ctx *ctx = data;
328 struct drm_crtc *crtc = ctx->crtc;
329 void __iomem *base = ctx->base;
332 status = readl(base + LDI_MSK_INT);
333 DRM_DEBUG_VBL("LDI IRQ: status=0x%X\n", status);
336 if (status & BIT(FRAME_END_INT_EN_OFST)) {
337 ade_update_bits(base + LDI_INT_CLR, FRAME_END_INT_EN_OFST,
339 drm_crtc_handle_vblank(crtc);
341 if (status & BIT(UNDERFLOW_INT_EN_OFST)) {
342 ade_update_bits(base + LDI_INT_CLR, UNDERFLOW_INT_EN_OFST,
344 DRM_ERROR("LDI underflow!");
345 schedule_work(&ctx->display_reset_wq);
351 static void ade_display_enable(struct ade_hw_ctx *ctx)
353 void __iomem *base = ctx->base;
354 u32 out_fmt = LDI_OUT_RGB_888;
356 /* enable output overlay compositor */
357 writel(ADE_ENABLE, base + ADE_OVLYX_CTL(OUT_OVLY));
358 ade_update_reload_bit(base, OVLY_OFST + OUT_OVLY, 0);
360 /* display source setting */
361 writel(DISP_SRC_OVLY2, base + ADE_DISP_SRC_CFG);
364 writel(ADE_ENABLE, base + ADE_EN);
366 writel(NORMAL_MODE, base + LDI_WORK_MODE);
367 writel((out_fmt << BPP_OFST) | DATA_GATE_EN | LDI_EN,
370 writel(DSI_PCLK_ON, base + LDI_HDMI_DSI_GT);
374 static void ade_rdma_dump_regs(void __iomem *base, u32 ch)
376 u32 reg_ctrl, reg_addr, reg_size, reg_stride, reg_space, reg_en;
379 reg_ctrl = RD_CH_CTRL(ch);
380 reg_addr = RD_CH_ADDR(ch);
381 reg_size = RD_CH_SIZE(ch);
382 reg_stride = RD_CH_STRIDE(ch);
383 reg_space = RD_CH_SPACE(ch);
384 reg_en = RD_CH_EN(ch);
386 val = ade_read_reload_bit(base, RDMA_OFST + ch);
387 DRM_DEBUG_DRIVER("[rdma%d]: reload(%d)\n", ch + 1, val);
388 val = readl(base + reg_ctrl);
389 DRM_DEBUG_DRIVER("[rdma%d]: reg_ctrl(0x%08x)\n", ch + 1, val);
390 val = readl(base + reg_addr);
391 DRM_DEBUG_DRIVER("[rdma%d]: reg_addr(0x%08x)\n", ch + 1, val);
392 val = readl(base + reg_size);
393 DRM_DEBUG_DRIVER("[rdma%d]: reg_size(0x%08x)\n", ch + 1, val);
394 val = readl(base + reg_stride);
395 DRM_DEBUG_DRIVER("[rdma%d]: reg_stride(0x%08x)\n", ch + 1, val);
396 val = readl(base + reg_space);
397 DRM_DEBUG_DRIVER("[rdma%d]: reg_space(0x%08x)\n", ch + 1, val);
398 val = readl(base + reg_en);
399 DRM_DEBUG_DRIVER("[rdma%d]: reg_en(0x%08x)\n", ch + 1, val);
402 static void ade_clip_dump_regs(void __iomem *base, u32 ch)
406 val = ade_read_reload_bit(base, CLIP_OFST + ch);
407 DRM_DEBUG_DRIVER("[clip%d]: reload(%d)\n", ch + 1, val);
408 val = readl(base + ADE_CLIP_DISABLE(ch));
409 DRM_DEBUG_DRIVER("[clip%d]: reg_clip_disable(0x%08x)\n", ch + 1, val);
410 val = readl(base + ADE_CLIP_SIZE0(ch));
411 DRM_DEBUG_DRIVER("[clip%d]: reg_clip_size0(0x%08x)\n", ch + 1, val);
412 val = readl(base + ADE_CLIP_SIZE1(ch));
413 DRM_DEBUG_DRIVER("[clip%d]: reg_clip_size1(0x%08x)\n", ch + 1, val);
416 static void ade_compositor_routing_dump_regs(void __iomem *base, u32 ch)
418 u8 ovly_ch = 0; /* TODO: Only primary plane now */
421 val = readl(base + ADE_OVLY_CH_XY0(ovly_ch));
422 DRM_DEBUG_DRIVER("[overlay ch%d]: reg_ch_xy0(0x%08x)\n", ovly_ch, val);
423 val = readl(base + ADE_OVLY_CH_XY1(ovly_ch));
424 DRM_DEBUG_DRIVER("[overlay ch%d]: reg_ch_xy1(0x%08x)\n", ovly_ch, val);
425 val = readl(base + ADE_OVLY_CH_CTL(ovly_ch));
426 DRM_DEBUG_DRIVER("[overlay ch%d]: reg_ch_ctl(0x%08x)\n", ovly_ch, val);
429 static void ade_dump_overlay_compositor_regs(void __iomem *base, u32 comp)
433 val = ade_read_reload_bit(base, OVLY_OFST + comp);
434 DRM_DEBUG_DRIVER("[overlay%d]: reload(%d)\n", comp + 1, val);
435 writel(ADE_ENABLE, base + ADE_OVLYX_CTL(comp));
436 DRM_DEBUG_DRIVER("[overlay%d]: reg_ctl(0x%08x)\n", comp + 1, val);
437 val = readl(base + ADE_OVLY_CTL);
438 DRM_DEBUG_DRIVER("ovly_ctl(0x%08x)\n", val);
441 static void ade_dump_regs(void __iomem *base)
445 /* dump channel regs */
446 for (i = 0; i < ADE_CH_NUM; i++) {
448 ade_rdma_dump_regs(base, i);
451 ade_clip_dump_regs(base, i);
453 /* dump compositor routing regs */
454 ade_compositor_routing_dump_regs(base, i);
457 /* dump overlay compositor regs */
458 ade_dump_overlay_compositor_regs(base, OUT_OVLY);
461 static void ade_dump_regs(void __iomem *base) { }
464 static void ade_crtc_atomic_enable(struct drm_crtc *crtc,
465 struct drm_crtc_state *old_state)
467 struct kirin_crtc *kcrtc = to_kirin_crtc(crtc);
468 struct ade_hw_ctx *ctx = kcrtc->hw_ctx;
474 if (!ctx->power_on) {
475 ret = ade_power_up(ctx);
480 ade_set_medianoc_qos(ctx);
481 ade_display_enable(ctx);
482 ade_dump_regs(ctx->base);
483 drm_crtc_vblank_on(crtc);
484 kcrtc->enable = true;
487 static void ade_crtc_atomic_disable(struct drm_crtc *crtc,
488 struct drm_crtc_state *old_state)
490 struct kirin_crtc *kcrtc = to_kirin_crtc(crtc);
491 struct ade_hw_ctx *ctx = kcrtc->hw_ctx;
496 drm_crtc_vblank_off(crtc);
498 kcrtc->enable = false;
501 static void ade_crtc_mode_set_nofb(struct drm_crtc *crtc)
503 struct kirin_crtc *kcrtc = to_kirin_crtc(crtc);
504 struct ade_hw_ctx *ctx = kcrtc->hw_ctx;
505 struct drm_display_mode *mode = &crtc->state->mode;
506 struct drm_display_mode *adj_mode = &crtc->state->adjusted_mode;
509 (void)ade_power_up(ctx);
510 ade_ldi_set_mode(ctx, mode, adj_mode);
513 static void ade_crtc_atomic_begin(struct drm_crtc *crtc,
514 struct drm_crtc_state *old_state)
516 struct kirin_crtc *kcrtc = to_kirin_crtc(crtc);
517 struct ade_hw_ctx *ctx = kcrtc->hw_ctx;
518 struct drm_display_mode *mode = &crtc->state->mode;
519 struct drm_display_mode *adj_mode = &crtc->state->adjusted_mode;
522 (void)ade_power_up(ctx);
523 ade_ldi_set_mode(ctx, mode, adj_mode);
526 static void ade_crtc_atomic_flush(struct drm_crtc *crtc,
527 struct drm_crtc_state *old_state)
530 struct kirin_crtc *kcrtc = to_kirin_crtc(crtc);
531 struct ade_hw_ctx *ctx = kcrtc->hw_ctx;
532 struct drm_pending_vblank_event *event = crtc->state->event;
533 void __iomem *base = ctx->base;
535 /* only crtc is enabled regs take effect */
538 /* flush ade registers */
539 writel(ADE_ENABLE, base + ADE_EN);
543 crtc->state->event = NULL;
545 spin_lock_irq(&crtc->dev->event_lock);
546 if (drm_crtc_vblank_get(crtc) == 0)
547 drm_crtc_arm_vblank_event(crtc, event);
549 drm_crtc_send_vblank_event(crtc, event);
550 spin_unlock_irq(&crtc->dev->event_lock);
554 static const struct drm_crtc_helper_funcs ade_crtc_helper_funcs = {
555 .mode_fixup = ade_crtc_mode_fixup,
556 .mode_set_nofb = ade_crtc_mode_set_nofb,
557 .atomic_begin = ade_crtc_atomic_begin,
558 .atomic_flush = ade_crtc_atomic_flush,
559 .atomic_enable = ade_crtc_atomic_enable,
560 .atomic_disable = ade_crtc_atomic_disable,
563 static const struct drm_crtc_funcs ade_crtc_funcs = {
564 .destroy = drm_crtc_cleanup,
565 .set_config = drm_atomic_helper_set_config,
566 .page_flip = drm_atomic_helper_page_flip,
567 .reset = drm_atomic_helper_crtc_reset,
568 .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
569 .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
570 .enable_vblank = ade_crtc_enable_vblank,
571 .disable_vblank = ade_crtc_disable_vblank,
574 static int kirin_drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
575 struct drm_plane *plane)
577 struct device_node *port;
580 /* set crtc port so that
581 * drm_of_find_possible_crtcs call works
583 port = of_get_child_by_name(dev->dev->of_node, "port");
585 DRM_ERROR("no port node found in %pOF\n", dev->dev->of_node);
591 ret = drm_crtc_init_with_planes(dev, crtc, plane, NULL,
592 ade_driver_data.crtc_funcs, NULL);
594 DRM_ERROR("failed to init crtc.\n");
598 drm_crtc_helper_add(crtc, ade_driver_data.crtc_helper_funcs);
603 static void ade_rdma_set(void __iomem *base, struct drm_framebuffer *fb,
604 u32 ch, u32 y, u32 in_h, u32 fmt)
606 struct drm_gem_cma_object *obj = drm_fb_cma_get_gem_obj(fb, 0);
607 struct drm_format_name_buf format_name;
608 u32 reg_ctrl, reg_addr, reg_size, reg_stride, reg_space, reg_en;
609 u32 stride = fb->pitches[0];
610 u32 addr = (u32)obj->paddr + y * stride;
612 DRM_DEBUG_DRIVER("rdma%d: (y=%d, height=%d), stride=%d, paddr=0x%x\n",
613 ch + 1, y, in_h, stride, (u32)obj->paddr);
614 DRM_DEBUG_DRIVER("addr=0x%x, fb:%dx%d, pixel_format=%d(%s)\n",
615 addr, fb->width, fb->height, fmt,
616 drm_get_format_name(fb->format->format, &format_name));
619 reg_ctrl = RD_CH_CTRL(ch);
620 reg_addr = RD_CH_ADDR(ch);
621 reg_size = RD_CH_SIZE(ch);
622 reg_stride = RD_CH_STRIDE(ch);
623 reg_space = RD_CH_SPACE(ch);
624 reg_en = RD_CH_EN(ch);
629 writel((fmt << 16) & 0x1f0000, base + reg_ctrl);
630 writel(addr, base + reg_addr);
631 writel((in_h << 16) | stride, base + reg_size);
632 writel(stride, base + reg_stride);
633 writel(in_h * stride, base + reg_space);
634 writel(ADE_ENABLE, base + reg_en);
635 ade_update_reload_bit(base, RDMA_OFST + ch, 0);
638 static void ade_rdma_disable(void __iomem *base, u32 ch)
643 reg_en = RD_CH_EN(ch);
644 writel(0, base + reg_en);
645 ade_update_reload_bit(base, RDMA_OFST + ch, 1);
648 static void ade_clip_set(void __iomem *base, u32 ch, u32 fb_w, u32 x,
656 * clip width, no need to clip height
658 if (fb_w == in_w) { /* bypass */
665 clip_right = fb_w - (x + in_w) - 1;
668 DRM_DEBUG_DRIVER("clip%d: clip_left=%d, clip_right=%d\n",
669 ch + 1, clip_left, clip_right);
671 writel(disable_val, base + ADE_CLIP_DISABLE(ch));
672 writel((fb_w - 1) << 16 | (in_h - 1), base + ADE_CLIP_SIZE0(ch));
673 writel(clip_left << 16 | clip_right, base + ADE_CLIP_SIZE1(ch));
674 ade_update_reload_bit(base, CLIP_OFST + ch, 0);
677 static void ade_clip_disable(void __iomem *base, u32 ch)
679 writel(1, base + ADE_CLIP_DISABLE(ch));
680 ade_update_reload_bit(base, CLIP_OFST + ch, 1);
683 static bool has_Alpha_channel(int format)
696 static void ade_get_blending_params(u32 fmt, u8 glb_alpha, u8 *alp_mode,
697 u8 *alp_sel, u8 *under_alp_sel)
699 bool has_alpha = has_Alpha_channel(fmt);
704 if (has_alpha && glb_alpha < 255)
705 *alp_mode = ADE_ALP_PIXEL_AND_GLB;
707 *alp_mode = ADE_ALP_PIXEL;
709 *alp_mode = ADE_ALP_GLOBAL;
714 *alp_sel = ADE_ALP_MUL_COEFF_3; /* 1 */
715 *under_alp_sel = ADE_ALP_MUL_COEFF_2; /* 0 */
718 static void ade_compositor_routing_set(void __iomem *base, u8 ch,
720 u32 in_w, u32 in_h, u32 fmt)
722 u8 ovly_ch = 0; /* TODO: This is the zpos, only one plane now */
724 u32 x1 = x0 + in_w - 1;
725 u32 y1 = y0 + in_h - 1;
731 ade_get_blending_params(fmt, glb_alpha, &alp_mode, &alp_sel,
734 /* overlay routing setting
736 writel(x0 << 16 | y0, base + ADE_OVLY_CH_XY0(ovly_ch));
737 writel(x1 << 16 | y1, base + ADE_OVLY_CH_XY1(ovly_ch));
738 val = (ch + 1) << CH_SEL_OFST | BIT(CH_EN_OFST) |
739 alp_sel << CH_ALP_SEL_OFST |
740 under_alp_sel << CH_UNDER_ALP_SEL_OFST |
741 glb_alpha << CH_ALP_GBL_OFST |
742 alp_mode << CH_ALP_MODE_OFST;
743 writel(val, base + ADE_OVLY_CH_CTL(ovly_ch));
744 /* connect this plane/channel to overlay2 compositor */
745 ade_update_bits(base + ADE_OVLY_CTL, CH_OVLY_SEL_OFST(ovly_ch),
746 CH_OVLY_SEL_MASK, CH_OVLY_SEL_VAL(OUT_OVLY));
749 static void ade_compositor_routing_disable(void __iomem *base, u32 ch)
751 u8 ovly_ch = 0; /* TODO: Only primary plane now */
753 /* disable this plane/channel */
754 ade_update_bits(base + ADE_OVLY_CH_CTL(ovly_ch), CH_EN_OFST,
756 /* dis-connect this plane/channel of overlay2 compositor */
757 ade_update_bits(base + ADE_OVLY_CTL, CH_OVLY_SEL_OFST(ovly_ch),
758 CH_OVLY_SEL_MASK, 0);
762 * Typicaly, a channel looks like: DMA-->clip-->scale-->ctrans-->compositor
764 static void ade_update_channel(struct kirin_plane *kplane,
765 struct drm_framebuffer *fb, int crtc_x,
766 int crtc_y, unsigned int crtc_w,
767 unsigned int crtc_h, u32 src_x,
768 u32 src_y, u32 src_w, u32 src_h)
770 struct ade_hw_ctx *ctx = kplane->hw_ctx;
771 void __iomem *base = ctx->base;
772 u32 fmt = ade_get_format(fb->format->format);
777 DRM_DEBUG_DRIVER("channel%d: src:(%d, %d)-%dx%d, crtc:(%d, %d)-%dx%d",
778 ch + 1, src_x, src_y, src_w, src_h,
779 crtc_x, crtc_y, crtc_w, crtc_h);
784 ade_rdma_set(base, fb, ch, src_y, in_h, fmt);
786 /* 2) clip setting */
787 ade_clip_set(base, ch, fb->width, src_x, in_w, in_h);
789 /* 3) TODO: scale setting for overlay planes */
791 /* 4) TODO: ctran/csc setting for overlay planes */
793 /* 5) compositor routing setting */
794 ade_compositor_routing_set(base, ch, crtc_x, crtc_y, in_w, in_h, fmt);
797 static void ade_disable_channel(struct kirin_plane *kplane)
799 struct ade_hw_ctx *ctx = kplane->hw_ctx;
800 void __iomem *base = ctx->base;
803 DRM_DEBUG_DRIVER("disable channel%d\n", ch + 1);
805 /* disable read DMA */
806 ade_rdma_disable(base, ch);
809 ade_clip_disable(base, ch);
811 /* disable compositor routing */
812 ade_compositor_routing_disable(base, ch);
815 static int ade_plane_atomic_check(struct drm_plane *plane,
816 struct drm_plane_state *state)
818 struct drm_framebuffer *fb = state->fb;
819 struct drm_crtc *crtc = state->crtc;
820 struct drm_crtc_state *crtc_state;
821 u32 src_x = state->src_x >> 16;
822 u32 src_y = state->src_y >> 16;
823 u32 src_w = state->src_w >> 16;
824 u32 src_h = state->src_h >> 16;
825 int crtc_x = state->crtc_x;
826 int crtc_y = state->crtc_y;
827 u32 crtc_w = state->crtc_w;
828 u32 crtc_h = state->crtc_h;
834 fmt = ade_get_format(fb->format->format);
835 if (fmt == ADE_FORMAT_UNSUPPORT)
838 crtc_state = drm_atomic_get_crtc_state(state->state, crtc);
839 if (IS_ERR(crtc_state))
840 return PTR_ERR(crtc_state);
842 if (src_w != crtc_w || src_h != crtc_h) {
846 if (src_x + src_w > fb->width ||
847 src_y + src_h > fb->height)
850 if (crtc_x < 0 || crtc_y < 0)
853 if (crtc_x + crtc_w > crtc_state->adjusted_mode.hdisplay ||
854 crtc_y + crtc_h > crtc_state->adjusted_mode.vdisplay)
860 static void ade_plane_atomic_update(struct drm_plane *plane,
861 struct drm_plane_state *old_state)
863 struct drm_plane_state *state = plane->state;
864 struct kirin_plane *kplane = to_kirin_plane(plane);
866 ade_update_channel(kplane, state->fb, state->crtc_x, state->crtc_y,
867 state->crtc_w, state->crtc_h,
868 state->src_x >> 16, state->src_y >> 16,
869 state->src_w >> 16, state->src_h >> 16);
872 static void ade_plane_atomic_disable(struct drm_plane *plane,
873 struct drm_plane_state *old_state)
875 struct kirin_plane *kplane = to_kirin_plane(plane);
877 ade_disable_channel(kplane);
880 static const struct drm_plane_helper_funcs ade_plane_helper_funcs = {
881 .atomic_check = ade_plane_atomic_check,
882 .atomic_update = ade_plane_atomic_update,
883 .atomic_disable = ade_plane_atomic_disable,
886 static struct drm_plane_funcs ade_plane_funcs = {
887 .update_plane = drm_atomic_helper_update_plane,
888 .disable_plane = drm_atomic_helper_disable_plane,
889 .destroy = drm_plane_cleanup,
890 .reset = drm_atomic_helper_plane_reset,
891 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
892 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
895 static int kirin_drm_plane_init(struct drm_device *dev,
896 struct kirin_plane *kplane,
897 enum drm_plane_type type)
901 ret = drm_universal_plane_init(dev, &kplane->base, 1,
902 ade_driver_data.plane_funcs,
903 ade_driver_data.channel_formats,
904 ade_driver_data.channel_formats_cnt,
907 DRM_ERROR("fail to init plane, ch=%d\n", kplane->ch);
911 drm_plane_helper_add(&kplane->base, ade_driver_data.plane_helper_funcs);
916 static void *ade_hw_ctx_alloc(struct platform_device *pdev,
917 struct drm_crtc *crtc)
919 struct resource *res;
920 struct device *dev = &pdev->dev;
921 struct device_node *np = pdev->dev.of_node;
922 struct ade_hw_ctx *ctx = NULL;
925 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
927 DRM_ERROR("failed to alloc ade_hw_ctx\n");
928 return ERR_PTR(-ENOMEM);
931 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
932 ctx->base = devm_ioremap_resource(dev, res);
933 if (IS_ERR(ctx->base)) {
934 DRM_ERROR("failed to remap ade io base\n");
935 return ERR_PTR(-EIO);
938 ctx->reset = devm_reset_control_get(dev, NULL);
939 if (IS_ERR(ctx->reset))
940 return ERR_PTR(-ENODEV);
943 syscon_regmap_lookup_by_phandle(np, "hisilicon,noc-syscon");
944 if (IS_ERR(ctx->noc_regmap)) {
945 DRM_ERROR("failed to get noc regmap\n");
946 return ERR_PTR(-ENODEV);
949 ctx->irq = platform_get_irq(pdev, 0);
951 DRM_ERROR("failed to get irq\n");
952 return ERR_PTR(-ENODEV);
955 ctx->ade_core_clk = devm_clk_get(dev, "clk_ade_core");
956 if (IS_ERR(ctx->ade_core_clk)) {
957 DRM_ERROR("failed to parse clk ADE_CORE\n");
958 return ERR_PTR(-ENODEV);
961 ctx->media_noc_clk = devm_clk_get(dev, "clk_codec_jpeg");
962 if (IS_ERR(ctx->media_noc_clk)) {
963 DRM_ERROR("failed to parse clk CODEC_JPEG\n");
964 return ERR_PTR(-ENODEV);
967 ctx->ade_pix_clk = devm_clk_get(dev, "clk_ade_pix");
968 if (IS_ERR(ctx->ade_pix_clk)) {
969 DRM_ERROR("failed to parse clk ADE_PIX\n");
970 return ERR_PTR(-ENODEV);
973 /* vblank irq init */
974 ret = devm_request_irq(dev, ctx->irq, ade_irq_handler,
975 IRQF_SHARED, dev->driver->name, ctx);
977 return ERR_PTR(-EIO);
979 INIT_WORK(&ctx->display_reset_wq, drm_underflow_wq);
985 static int ade_drm_init(struct platform_device *pdev)
987 struct drm_device *dev = platform_get_drvdata(pdev);
988 struct ade_data *ade;
989 struct ade_hw_ctx *ctx;
990 struct kirin_crtc *kcrtc;
991 struct kirin_plane *kplane;
992 enum drm_plane_type type;
997 ade = devm_kzalloc(dev->dev, sizeof(*ade), GFP_KERNEL);
999 DRM_ERROR("failed to alloc ade_data\n");
1003 ctx = ade_hw_ctx_alloc(pdev, &ade->crtc.base);
1005 DRM_ERROR("failed to initialize kirin_priv hw ctx\n");
1011 kcrtc->hw_ctx = ctx;
1015 * TODO: Now only support primary plane, overlay planes
1018 for (ch = 0; ch < ade_driver_data.num_planes; ch++) {
1019 kplane = &ade->planes[ch];
1021 kplane->hw_ctx = ctx;
1023 if (ch == ade_driver_data.prim_plane)
1024 type = DRM_PLANE_TYPE_PRIMARY;
1026 type = DRM_PLANE_TYPE_OVERLAY;
1028 ret = kirin_drm_plane_init(dev, kplane, type);
1034 prim_plane = ade_driver_data.prim_plane;
1035 ret = kirin_drm_crtc_init(dev, &kcrtc->base,
1036 &ade->planes[prim_plane].base);
1043 static void ade_drm_cleanup(struct platform_device *pdev)
1047 static const struct drm_mode_config_funcs ade_mode_config_funcs = {
1048 .fb_create = drm_gem_fb_create,
1049 .atomic_check = drm_atomic_helper_check,
1050 .atomic_commit = drm_atomic_helper_commit,
1054 DEFINE_DRM_GEM_CMA_FOPS(ade_fops);
1056 static struct drm_driver ade_driver = {
1057 .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
1059 .gem_free_object_unlocked = drm_gem_cma_free_object,
1060 .gem_vm_ops = &drm_gem_cma_vm_ops,
1061 .dumb_create = drm_gem_cma_dumb_create_internal,
1062 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
1063 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
1064 .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
1065 .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
1066 .gem_prime_vmap = drm_gem_cma_prime_vmap,
1067 .gem_prime_vunmap = drm_gem_cma_prime_vunmap,
1068 .gem_prime_mmap = drm_gem_cma_prime_mmap,
1071 .desc = "Hisilicon Kirin620 SoC DRM Driver",
1077 struct kirin_drm_data ade_driver_data = {
1078 .register_connects = false,
1079 .num_planes = ADE_CH_NUM,
1080 .prim_plane = ADE_CH1,
1081 .channel_formats = channel_formats,
1082 .channel_formats_cnt = ARRAY_SIZE(channel_formats),
1083 .config_max_width = 2048,
1084 .config_max_height = 2048,
1085 .driver = &ade_driver,
1086 .crtc_helper_funcs = &ade_crtc_helper_funcs,
1087 .crtc_funcs = &ade_crtc_funcs,
1088 .plane_helper_funcs = &ade_plane_helper_funcs,
1089 .plane_funcs = &ade_plane_funcs,
1090 .mode_config_funcs = &ade_mode_config_funcs,
1092 .init = ade_drm_init,
1093 .cleanup = ade_drm_cleanup