2 * Copyright (C) 2013 Red Hat
3 * Author: Rob Clark <robdclark@gmail.com>
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published by
7 * the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program. If not, see <http://www.gnu.org/licenses/>.
22 struct drm_plane base;
32 #define to_mdp5_plane(x) container_of(x, struct mdp5_plane, base)
34 static struct mdp5_kms *get_kms(struct drm_plane *plane)
36 struct msm_drm_private *priv = plane->dev->dev_private;
37 return to_mdp5_kms(to_mdp_kms(priv->kms));
40 static int mdp5_plane_update(struct drm_plane *plane,
41 struct drm_crtc *crtc, struct drm_framebuffer *fb,
42 int crtc_x, int crtc_y,
43 unsigned int crtc_w, unsigned int crtc_h,
44 uint32_t src_x, uint32_t src_y,
45 uint32_t src_w, uint32_t src_h)
47 struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane);
49 mdp5_plane->enabled = true;
52 drm_framebuffer_unreference(plane->fb);
54 drm_framebuffer_reference(fb);
56 return mdp5_plane_mode_set(plane, crtc, fb,
57 crtc_x, crtc_y, crtc_w, crtc_h,
58 src_x, src_y, src_w, src_h);
61 static int mdp5_plane_disable(struct drm_plane *plane)
63 struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane);
64 struct mdp5_kms *mdp5_kms = get_kms(plane);
65 enum mdp5_pipe pipe = mdp5_plane->pipe;
68 DBG("%s: disable", mdp5_plane->name);
70 /* update our SMP request to zero (release all our blks): */
71 for (i = 0; i < pipe2nclients(pipe); i++)
72 mdp5_smp_request(mdp5_kms, pipe2client(pipe, i), 0);
74 /* TODO detaching now will cause us not to get the last
75 * vblank and mdp5_smp_commit().. so other planes will
76 * still see smp blocks previously allocated to us as
80 mdp5_crtc_detach(plane->crtc, plane);
85 static void mdp5_plane_destroy(struct drm_plane *plane)
87 struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane);
89 mdp5_plane_disable(plane);
90 drm_plane_cleanup(plane);
95 /* helper to install properties which are common to planes and crtcs */
96 void mdp5_plane_install_properties(struct drm_plane *plane,
97 struct drm_mode_object *obj)
102 int mdp5_plane_set_property(struct drm_plane *plane,
103 struct drm_property *property, uint64_t val)
109 static const struct drm_plane_funcs mdp5_plane_funcs = {
110 .update_plane = mdp5_plane_update,
111 .disable_plane = mdp5_plane_disable,
112 .destroy = mdp5_plane_destroy,
113 .set_property = mdp5_plane_set_property,
116 void mdp5_plane_set_scanout(struct drm_plane *plane,
117 struct drm_framebuffer *fb)
119 struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane);
120 struct mdp5_kms *mdp5_kms = get_kms(plane);
121 enum mdp5_pipe pipe = mdp5_plane->pipe;
122 uint32_t nplanes = drm_format_num_planes(fb->pixel_format);
126 for (i = 0; i < nplanes; i++) {
127 struct drm_gem_object *bo = msm_framebuffer_bo(fb, i);
128 msm_gem_get_iova(bo, mdp5_kms->id, &iova[i]);
133 mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_STRIDE_A(pipe),
134 MDP5_PIPE_SRC_STRIDE_A_P0(fb->pitches[0]) |
135 MDP5_PIPE_SRC_STRIDE_A_P1(fb->pitches[1]));
137 mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_STRIDE_B(pipe),
138 MDP5_PIPE_SRC_STRIDE_B_P2(fb->pitches[2]) |
139 MDP5_PIPE_SRC_STRIDE_B_P3(fb->pitches[3]));
141 mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC0_ADDR(pipe), iova[0]);
142 mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC1_ADDR(pipe), iova[1]);
143 mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC2_ADDR(pipe), iova[2]);
144 mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC3_ADDR(pipe), iova[3]);
149 /* NOTE: looks like if horizontal decimation is used (if we supported that)
150 * then the width used to calculate SMP block requirements is the post-
151 * decimated width. Ie. SMP buffering sits downstream of decimation (which
152 * presumably happens during the dma from scanout buffer).
154 static int request_smp_blocks(struct drm_plane *plane, uint32_t format,
155 uint32_t nplanes, uint32_t width)
157 struct drm_device *dev = plane->dev;
158 struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane);
159 struct mdp5_kms *mdp5_kms = get_kms(plane);
160 enum mdp5_pipe pipe = mdp5_plane->pipe;
161 int i, hsub, nlines, nblks, ret;
163 hsub = drm_format_horz_chroma_subsampling(format);
165 /* different if BWC (compressed framebuffer?) enabled: */
168 for (i = 0, nblks = 0; i < nplanes; i++) {
169 int n, fetch_stride, cpp;
171 cpp = drm_format_plane_cpp(format, i);
172 fetch_stride = width * cpp / (i ? hsub : 1);
174 n = DIV_ROUND_UP(fetch_stride * nlines, SMP_BLK_SIZE);
176 /* for hw rev v1.00 */
177 if (mdp5_kms->rev == 0)
178 n = roundup_pow_of_two(n);
180 DBG("%s[%d]: request %d SMP blocks", mdp5_plane->name, i, n);
181 ret = mdp5_smp_request(mdp5_kms, pipe2client(pipe, i), n);
183 dev_err(dev->dev, "Could not allocate %d SMP blocks: %d\n",
191 /* in success case, return total # of blocks allocated: */
195 static void set_fifo_thresholds(struct drm_plane *plane, int nblks)
197 struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane);
198 struct mdp5_kms *mdp5_kms = get_kms(plane);
199 enum mdp5_pipe pipe = mdp5_plane->pipe;
202 /* 1/4 of SMP pool that is being fetched */
203 val = (nblks * SMP_ENTRIES_PER_BLK) / 4;
205 mdp5_write(mdp5_kms, REG_MDP5_PIPE_REQPRIO_FIFO_WM_0(pipe), val * 1);
206 mdp5_write(mdp5_kms, REG_MDP5_PIPE_REQPRIO_FIFO_WM_1(pipe), val * 2);
207 mdp5_write(mdp5_kms, REG_MDP5_PIPE_REQPRIO_FIFO_WM_2(pipe), val * 3);
211 int mdp5_plane_mode_set(struct drm_plane *plane,
212 struct drm_crtc *crtc, struct drm_framebuffer *fb,
213 int crtc_x, int crtc_y,
214 unsigned int crtc_w, unsigned int crtc_h,
215 uint32_t src_x, uint32_t src_y,
216 uint32_t src_w, uint32_t src_h)
218 struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane);
219 struct mdp5_kms *mdp5_kms = get_kms(plane);
220 enum mdp5_pipe pipe = mdp5_plane->pipe;
221 const struct mdp_format *format;
222 uint32_t nplanes, config = 0;
223 uint32_t phasex_step = 0, phasey_step = 0;
224 uint32_t hdecm = 0, vdecm = 0;
227 nplanes = drm_format_num_planes(fb->pixel_format);
229 /* bad formats should already be rejected: */
230 if (WARN_ON(nplanes > pipe2nclients(pipe)))
233 /* src values are in Q16 fixed point, convert to integer: */
239 DBG("%s: FB[%u] %u,%u,%u,%u -> CRTC[%u] %d,%d,%u,%u", mdp5_plane->name,
240 fb->base.id, src_x, src_y, src_w, src_h,
241 crtc->base.id, crtc_x, crtc_y, crtc_w, crtc_h);
244 * Calculate and request required # of smp blocks:
246 nblks = request_smp_blocks(plane, fb->pixel_format, nplanes, src_w);
251 * Currently we update the hw for allocations/requests immediately,
252 * but once atomic modeset/pageflip is in place, the allocation
253 * would move into atomic->check_plane_state(), while updating the
254 * hw would remain here:
256 for (i = 0; i < pipe2nclients(pipe); i++)
257 mdp5_smp_configure(mdp5_kms, pipe2client(pipe, i));
259 if (src_w != crtc_w) {
260 config |= MDP5_PIPE_SCALE_CONFIG_SCALEX_EN;
261 /* TODO calc phasex_step, hdecm */
264 if (src_h != crtc_h) {
265 config |= MDP5_PIPE_SCALE_CONFIG_SCALEY_EN;
266 /* TODO calc phasey_step, vdecm */
269 mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_IMG_SIZE(pipe),
270 MDP5_PIPE_SRC_IMG_SIZE_WIDTH(src_w) |
271 MDP5_PIPE_SRC_IMG_SIZE_HEIGHT(src_h));
273 mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_SIZE(pipe),
274 MDP5_PIPE_SRC_SIZE_WIDTH(src_w) |
275 MDP5_PIPE_SRC_SIZE_HEIGHT(src_h));
277 mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_XY(pipe),
278 MDP5_PIPE_SRC_XY_X(src_x) |
279 MDP5_PIPE_SRC_XY_Y(src_y));
281 mdp5_write(mdp5_kms, REG_MDP5_PIPE_OUT_SIZE(pipe),
282 MDP5_PIPE_OUT_SIZE_WIDTH(crtc_w) |
283 MDP5_PIPE_OUT_SIZE_HEIGHT(crtc_h));
285 mdp5_write(mdp5_kms, REG_MDP5_PIPE_OUT_XY(pipe),
286 MDP5_PIPE_OUT_XY_X(crtc_x) |
287 MDP5_PIPE_OUT_XY_Y(crtc_y));
289 mdp5_plane_set_scanout(plane, fb);
291 format = to_mdp_format(msm_framebuffer_format(fb));
293 mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_FORMAT(pipe),
294 MDP5_PIPE_SRC_FORMAT_A_BPC(format->bpc_a) |
295 MDP5_PIPE_SRC_FORMAT_R_BPC(format->bpc_r) |
296 MDP5_PIPE_SRC_FORMAT_G_BPC(format->bpc_g) |
297 MDP5_PIPE_SRC_FORMAT_B_BPC(format->bpc_b) |
298 COND(format->alpha_enable, MDP5_PIPE_SRC_FORMAT_ALPHA_ENABLE) |
299 MDP5_PIPE_SRC_FORMAT_CPP(format->cpp - 1) |
300 MDP5_PIPE_SRC_FORMAT_UNPACK_COUNT(format->unpack_count - 1) |
301 COND(format->unpack_tight, MDP5_PIPE_SRC_FORMAT_UNPACK_TIGHT) |
302 MDP5_PIPE_SRC_FORMAT_NUM_PLANES(nplanes - 1) |
303 MDP5_PIPE_SRC_FORMAT_CHROMA_SAMP(CHROMA_RGB));
305 mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_UNPACK(pipe),
306 MDP5_PIPE_SRC_UNPACK_ELEM0(format->unpack[0]) |
307 MDP5_PIPE_SRC_UNPACK_ELEM1(format->unpack[1]) |
308 MDP5_PIPE_SRC_UNPACK_ELEM2(format->unpack[2]) |
309 MDP5_PIPE_SRC_UNPACK_ELEM3(format->unpack[3]));
311 mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_OP_MODE(pipe),
312 MDP5_PIPE_SRC_OP_MODE_BWC(BWC_LOSSLESS));
314 /* not using secure mode: */
315 mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_ADDR_SW_STATUS(pipe), 0);
317 mdp5_write(mdp5_kms, REG_MDP5_PIPE_SCALE_PHASE_STEP_X(pipe), phasex_step);
318 mdp5_write(mdp5_kms, REG_MDP5_PIPE_SCALE_PHASE_STEP_Y(pipe), phasey_step);
319 mdp5_write(mdp5_kms, REG_MDP5_PIPE_DECIMATION(pipe),
320 MDP5_PIPE_DECIMATION_VERT(vdecm) |
321 MDP5_PIPE_DECIMATION_HORZ(hdecm));
322 mdp5_write(mdp5_kms, REG_MDP5_PIPE_SCALE_CONFIG(pipe),
323 MDP5_PIPE_SCALE_CONFIG_SCALEX_MIN_FILTER(SCALE_FILTER_NEAREST) |
324 MDP5_PIPE_SCALE_CONFIG_SCALEY_MIN_FILTER(SCALE_FILTER_NEAREST) |
325 MDP5_PIPE_SCALE_CONFIG_SCALEX_CR_FILTER(SCALE_FILTER_NEAREST) |
326 MDP5_PIPE_SCALE_CONFIG_SCALEY_CR_FILTER(SCALE_FILTER_NEAREST) |
327 MDP5_PIPE_SCALE_CONFIG_SCALEX_MAX_FILTER(SCALE_FILTER_NEAREST) |
328 MDP5_PIPE_SCALE_CONFIG_SCALEY_MAX_FILTER(SCALE_FILTER_NEAREST));
330 set_fifo_thresholds(plane, nblks);
332 /* TODO detach from old crtc (if we had more than one) */
333 mdp5_crtc_attach(crtc, plane);
338 void mdp5_plane_complete_flip(struct drm_plane *plane)
340 struct mdp5_kms *mdp5_kms = get_kms(plane);
341 enum mdp5_pipe pipe = to_mdp5_plane(plane)->pipe;
344 for (i = 0; i < pipe2nclients(pipe); i++)
345 mdp5_smp_commit(mdp5_kms, pipe2client(pipe, i));
348 enum mdp5_pipe mdp5_plane_pipe(struct drm_plane *plane)
350 struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane);
351 return mdp5_plane->pipe;
354 /* initialize plane */
355 struct drm_plane *mdp5_plane_init(struct drm_device *dev,
356 enum mdp5_pipe pipe, bool private_plane)
358 struct drm_plane *plane = NULL;
359 struct mdp5_plane *mdp5_plane;
361 enum drm_plane_type type;
363 mdp5_plane = kzalloc(sizeof(*mdp5_plane), GFP_KERNEL);
369 plane = &mdp5_plane->base;
371 mdp5_plane->pipe = pipe;
372 mdp5_plane->name = pipe2name(pipe);
374 mdp5_plane->nformats = mdp5_get_formats(pipe, mdp5_plane->formats,
375 ARRAY_SIZE(mdp5_plane->formats));
377 type = private_plane ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY;
378 drm_universal_plane_init(dev, plane, 0xff, &mdp5_plane_funcs,
379 mdp5_plane->formats, mdp5_plane->nformats,
382 mdp5_plane_install_properties(plane, &plane->base);
388 mdp5_plane_destroy(plane);