Loading...
Note: File does not exist in v3.1.
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (C) 2012 Russell King
4 * Rewritten from the dovefb driver, and Armada510 manuals.
5 */
6
7#include <drm/drm_atomic.h>
8#include <drm/drm_atomic_helper.h>
9#include <drm/drm_fourcc.h>
10#include <drm/drm_plane_helper.h>
11
12#include "armada_crtc.h"
13#include "armada_drm.h"
14#include "armada_fb.h"
15#include "armada_gem.h"
16#include "armada_hw.h"
17#include "armada_plane.h"
18#include "armada_trace.h"
19
20static const uint32_t armada_primary_formats[] = {
21 DRM_FORMAT_UYVY,
22 DRM_FORMAT_YUYV,
23 DRM_FORMAT_VYUY,
24 DRM_FORMAT_YVYU,
25 DRM_FORMAT_ARGB8888,
26 DRM_FORMAT_ABGR8888,
27 DRM_FORMAT_XRGB8888,
28 DRM_FORMAT_XBGR8888,
29 DRM_FORMAT_RGB888,
30 DRM_FORMAT_BGR888,
31 DRM_FORMAT_ARGB1555,
32 DRM_FORMAT_ABGR1555,
33 DRM_FORMAT_RGB565,
34 DRM_FORMAT_BGR565,
35};
36
37void armada_drm_plane_calc(struct drm_plane_state *state, u32 addrs[2][3],
38 u16 pitches[3], bool interlaced)
39{
40 struct drm_framebuffer *fb = state->fb;
41 const struct drm_format_info *format = fb->format;
42 unsigned int num_planes = format->num_planes;
43 unsigned int x = state->src.x1 >> 16;
44 unsigned int y = state->src.y1 >> 16;
45 u32 addr = drm_fb_obj(fb)->dev_addr;
46 int i;
47
48 DRM_DEBUG_KMS("pitch %u x %d y %d bpp %d\n",
49 fb->pitches[0], x, y, format->cpp[0] * 8);
50
51 if (num_planes > 3)
52 num_planes = 3;
53
54 addrs[0][0] = addr + fb->offsets[0] + y * fb->pitches[0] +
55 x * format->cpp[0];
56 pitches[0] = fb->pitches[0];
57
58 y /= format->vsub;
59 x /= format->hsub;
60
61 for (i = 1; i < num_planes; i++) {
62 addrs[0][i] = addr + fb->offsets[i] + y * fb->pitches[i] +
63 x * format->cpp[i];
64 pitches[i] = fb->pitches[i];
65 }
66 for (; i < 3; i++) {
67 addrs[0][i] = 0;
68 pitches[i] = 0;
69 }
70 if (interlaced) {
71 for (i = 0; i < 3; i++) {
72 addrs[1][i] = addrs[0][i] + pitches[i];
73 pitches[i] *= 2;
74 }
75 } else {
76 for (i = 0; i < 3; i++)
77 addrs[1][i] = addrs[0][i];
78 }
79}
80
81int armada_drm_plane_atomic_check(struct drm_plane *plane,
82 struct drm_atomic_state *state)
83{
84 struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
85 plane);
86 struct armada_plane_state *st = to_armada_plane_state(new_plane_state);
87 struct drm_crtc *crtc = new_plane_state->crtc;
88 struct drm_crtc_state *crtc_state;
89 bool interlace;
90 int ret;
91
92 if (!new_plane_state->fb || WARN_ON(!new_plane_state->crtc)) {
93 new_plane_state->visible = false;
94 return 0;
95 }
96
97 if (state)
98 crtc_state = drm_atomic_get_existing_crtc_state(state,
99 crtc);
100 else
101 crtc_state = crtc->state;
102
103 ret = drm_atomic_helper_check_plane_state(new_plane_state, crtc_state,
104 0,
105 INT_MAX, true, false);
106 if (ret)
107 return ret;
108
109 interlace = crtc_state->adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE;
110 if (interlace) {
111 if ((new_plane_state->dst.y1 | new_plane_state->dst.y2) & 1)
112 return -EINVAL;
113 st->src_hw = drm_rect_height(&new_plane_state->src) >> 17;
114 st->dst_yx = new_plane_state->dst.y1 >> 1;
115 st->dst_hw = drm_rect_height(&new_plane_state->dst) >> 1;
116 } else {
117 st->src_hw = drm_rect_height(&new_plane_state->src) >> 16;
118 st->dst_yx = new_plane_state->dst.y1;
119 st->dst_hw = drm_rect_height(&new_plane_state->dst);
120 }
121
122 st->src_hw <<= 16;
123 st->src_hw |= drm_rect_width(&new_plane_state->src) >> 16;
124 st->dst_yx <<= 16;
125 st->dst_yx |= new_plane_state->dst.x1 & 0x0000ffff;
126 st->dst_hw <<= 16;
127 st->dst_hw |= drm_rect_width(&new_plane_state->dst) & 0x0000ffff;
128
129 armada_drm_plane_calc(new_plane_state, st->addrs, st->pitches,
130 interlace);
131 st->interlace = interlace;
132
133 return 0;
134}
135
136static void armada_drm_primary_plane_atomic_update(struct drm_plane *plane,
137 struct drm_atomic_state *state)
138{
139 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
140 plane);
141 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
142 plane);
143 struct armada_crtc *dcrtc;
144 struct armada_regs *regs;
145 u32 cfg, cfg_mask, val;
146 unsigned int idx;
147
148 DRM_DEBUG_KMS("[PLANE:%d:%s]\n", plane->base.id, plane->name);
149
150 if (!new_state->fb || WARN_ON(!new_state->crtc))
151 return;
152
153 DRM_DEBUG_KMS("[PLANE:%d:%s] is on [CRTC:%d:%s] with [FB:%d] visible %u->%u\n",
154 plane->base.id, plane->name,
155 new_state->crtc->base.id, new_state->crtc->name,
156 new_state->fb->base.id,
157 old_state->visible, new_state->visible);
158
159 dcrtc = drm_to_armada_crtc(new_state->crtc);
160 regs = dcrtc->regs + dcrtc->regs_idx;
161
162 idx = 0;
163 if (!old_state->visible && new_state->visible) {
164 val = CFG_PDWN64x66;
165 if (drm_fb_to_armada_fb(new_state->fb)->fmt > CFG_420)
166 val |= CFG_PDWN256x24;
167 armada_reg_queue_mod(regs, idx, 0, val, LCD_SPU_SRAM_PARA1);
168 }
169 val = armada_src_hw(new_state);
170 if (armada_src_hw(old_state) != val)
171 armada_reg_queue_set(regs, idx, val, LCD_SPU_GRA_HPXL_VLN);
172 val = armada_dst_yx(new_state);
173 if (armada_dst_yx(old_state) != val)
174 armada_reg_queue_set(regs, idx, val, LCD_SPU_GRA_OVSA_HPXL_VLN);
175 val = armada_dst_hw(new_state);
176 if (armada_dst_hw(old_state) != val)
177 armada_reg_queue_set(regs, idx, val, LCD_SPU_GZM_HPXL_VLN);
178 if (old_state->src.x1 != new_state->src.x1 ||
179 old_state->src.y1 != new_state->src.y1 ||
180 old_state->fb != new_state->fb ||
181 new_state->crtc->state->mode_changed) {
182 armada_reg_queue_set(regs, idx, armada_addr(new_state, 0, 0),
183 LCD_CFG_GRA_START_ADDR0);
184 armada_reg_queue_set(regs, idx, armada_addr(new_state, 1, 0),
185 LCD_CFG_GRA_START_ADDR1);
186 armada_reg_queue_mod(regs, idx, armada_pitch(new_state, 0),
187 0xffff,
188 LCD_CFG_GRA_PITCH);
189 }
190 if (old_state->fb != new_state->fb ||
191 new_state->crtc->state->mode_changed) {
192 cfg = CFG_GRA_FMT(drm_fb_to_armada_fb(new_state->fb)->fmt) |
193 CFG_GRA_MOD(drm_fb_to_armada_fb(new_state->fb)->mod);
194 if (drm_fb_to_armada_fb(new_state->fb)->fmt > CFG_420)
195 cfg |= CFG_PALETTE_ENA;
196 if (new_state->visible)
197 cfg |= CFG_GRA_ENA;
198 if (to_armada_plane_state(new_state)->interlace)
199 cfg |= CFG_GRA_FTOGGLE;
200 cfg_mask = CFG_GRAFORMAT |
201 CFG_GRA_MOD(CFG_SWAPRB | CFG_SWAPUV |
202 CFG_SWAPYU | CFG_YUV2RGB) |
203 CFG_PALETTE_ENA | CFG_GRA_FTOGGLE |
204 CFG_GRA_ENA;
205 } else if (old_state->visible != new_state->visible) {
206 cfg = new_state->visible ? CFG_GRA_ENA : 0;
207 cfg_mask = CFG_GRA_ENA;
208 } else {
209 cfg = cfg_mask = 0;
210 }
211 if (drm_rect_width(&old_state->src) != drm_rect_width(&new_state->src) ||
212 drm_rect_width(&old_state->dst) != drm_rect_width(&new_state->dst)) {
213 cfg_mask |= CFG_GRA_HSMOOTH;
214 if (drm_rect_width(&new_state->src) >> 16 !=
215 drm_rect_width(&new_state->dst))
216 cfg |= CFG_GRA_HSMOOTH;
217 }
218
219 if (cfg_mask)
220 armada_reg_queue_mod(regs, idx, cfg, cfg_mask,
221 LCD_SPU_DMA_CTRL0);
222
223 dcrtc->regs_idx += idx;
224}
225
226static void armada_drm_primary_plane_atomic_disable(struct drm_plane *plane,
227 struct drm_atomic_state *state)
228{
229 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
230 plane);
231 struct armada_crtc *dcrtc;
232 struct armada_regs *regs;
233 unsigned int idx = 0;
234
235 DRM_DEBUG_KMS("[PLANE:%d:%s]\n", plane->base.id, plane->name);
236
237 if (!old_state->crtc)
238 return;
239
240 DRM_DEBUG_KMS("[PLANE:%d:%s] was on [CRTC:%d:%s] with [FB:%d]\n",
241 plane->base.id, plane->name,
242 old_state->crtc->base.id, old_state->crtc->name,
243 old_state->fb->base.id);
244
245 dcrtc = drm_to_armada_crtc(old_state->crtc);
246 regs = dcrtc->regs + dcrtc->regs_idx;
247
248 /* Disable plane and power down most RAMs and FIFOs */
249 armada_reg_queue_mod(regs, idx, 0, CFG_GRA_ENA, LCD_SPU_DMA_CTRL0);
250 armada_reg_queue_mod(regs, idx, CFG_PDWN256x32 | CFG_PDWN256x24 |
251 CFG_PDWN32x32 | CFG_PDWN64x66,
252 0, LCD_SPU_SRAM_PARA1);
253
254 dcrtc->regs_idx += idx;
255}
256
257static const struct drm_plane_helper_funcs armada_primary_plane_helper_funcs = {
258 .atomic_check = armada_drm_plane_atomic_check,
259 .atomic_update = armada_drm_primary_plane_atomic_update,
260 .atomic_disable = armada_drm_primary_plane_atomic_disable,
261};
262
263void armada_plane_reset(struct drm_plane *plane)
264{
265 struct armada_plane_state *st;
266 if (plane->state)
267 __drm_atomic_helper_plane_destroy_state(plane->state);
268 kfree(plane->state);
269 st = kzalloc(sizeof(*st), GFP_KERNEL);
270 if (st)
271 __drm_atomic_helper_plane_reset(plane, &st->base);
272}
273
274struct drm_plane_state *armada_plane_duplicate_state(struct drm_plane *plane)
275{
276 struct armada_plane_state *st;
277
278 if (WARN_ON(!plane->state))
279 return NULL;
280
281 st = kmemdup(plane->state, sizeof(*st), GFP_KERNEL);
282 if (st)
283 __drm_atomic_helper_plane_duplicate_state(plane, &st->base);
284
285 return &st->base;
286}
287
288static const struct drm_plane_funcs armada_primary_plane_funcs = {
289 .update_plane = drm_atomic_helper_update_plane,
290 .disable_plane = drm_atomic_helper_disable_plane,
291 .destroy = drm_plane_helper_destroy,
292 .reset = armada_plane_reset,
293 .atomic_duplicate_state = armada_plane_duplicate_state,
294 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
295};
296
297int armada_drm_primary_plane_init(struct drm_device *drm,
298 struct drm_plane *primary)
299{
300 int ret;
301
302 drm_plane_helper_add(primary, &armada_primary_plane_helper_funcs);
303
304 ret = drm_universal_plane_init(drm, primary, 0,
305 &armada_primary_plane_funcs,
306 armada_primary_formats,
307 ARRAY_SIZE(armada_primary_formats),
308 NULL,
309 DRM_PLANE_TYPE_PRIMARY, NULL);
310
311 return ret;
312}