256 lines
6.9 KiB
C
256 lines
6.9 KiB
C
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/*
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* Copyright (C) 2013 Red Hat
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* Author: Rob Clark <robdclark@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "mdp4_kms.h"
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struct mdp4_plane {
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struct drm_plane base;
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const char *name;
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enum mdp4_pipe pipe;
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uint32_t nformats;
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uint32_t formats[32];
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bool enabled;
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};
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#define to_mdp4_plane(x) container_of(x, struct mdp4_plane, base)
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static struct mdp4_kms *get_kms(struct drm_plane *plane)
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{
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struct msm_drm_private *priv = plane->dev->dev_private;
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return to_mdp4_kms(to_mdp_kms(priv->kms));
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}
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static int mdp4_plane_update(struct drm_plane *plane,
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struct drm_crtc *crtc, struct drm_framebuffer *fb,
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int crtc_x, int crtc_y,
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unsigned int crtc_w, unsigned int crtc_h,
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uint32_t src_x, uint32_t src_y,
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uint32_t src_w, uint32_t src_h)
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{
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struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
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mdp4_plane->enabled = true;
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if (plane->fb)
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drm_framebuffer_unreference(plane->fb);
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drm_framebuffer_reference(fb);
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return mdp4_plane_mode_set(plane, crtc, fb,
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crtc_x, crtc_y, crtc_w, crtc_h,
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src_x, src_y, src_w, src_h);
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}
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static int mdp4_plane_disable(struct drm_plane *plane)
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{
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struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
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DBG("%s: disable", mdp4_plane->name);
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if (plane->crtc)
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mdp4_crtc_detach(plane->crtc, plane);
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return 0;
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}
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static void mdp4_plane_destroy(struct drm_plane *plane)
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{
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struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
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mdp4_plane_disable(plane);
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drm_plane_cleanup(plane);
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kfree(mdp4_plane);
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}
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/* helper to install properties which are common to planes and crtcs */
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void mdp4_plane_install_properties(struct drm_plane *plane,
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struct drm_mode_object *obj)
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{
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// XXX
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}
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int mdp4_plane_set_property(struct drm_plane *plane,
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struct drm_property *property, uint64_t val)
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{
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// XXX
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return -EINVAL;
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}
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static const struct drm_plane_funcs mdp4_plane_funcs = {
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.update_plane = mdp4_plane_update,
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.disable_plane = mdp4_plane_disable,
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.destroy = mdp4_plane_destroy,
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.set_property = mdp4_plane_set_property,
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};
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void mdp4_plane_set_scanout(struct drm_plane *plane,
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struct drm_framebuffer *fb)
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{
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struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
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struct mdp4_kms *mdp4_kms = get_kms(plane);
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enum mdp4_pipe pipe = mdp4_plane->pipe;
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uint32_t iova;
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mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_STRIDE_A(pipe),
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MDP4_PIPE_SRC_STRIDE_A_P0(fb->pitches[0]) |
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MDP4_PIPE_SRC_STRIDE_A_P1(fb->pitches[1]));
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mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_STRIDE_B(pipe),
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MDP4_PIPE_SRC_STRIDE_B_P2(fb->pitches[2]) |
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MDP4_PIPE_SRC_STRIDE_B_P3(fb->pitches[3]));
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msm_gem_get_iova(msm_framebuffer_bo(fb, 0), mdp4_kms->id, &iova);
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mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRCP0_BASE(pipe), iova);
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plane->fb = fb;
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}
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#define MDP4_VG_PHASE_STEP_DEFAULT 0x20000000
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int mdp4_plane_mode_set(struct drm_plane *plane,
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struct drm_crtc *crtc, struct drm_framebuffer *fb,
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int crtc_x, int crtc_y,
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unsigned int crtc_w, unsigned int crtc_h,
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uint32_t src_x, uint32_t src_y,
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uint32_t src_w, uint32_t src_h)
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{
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struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
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struct mdp4_kms *mdp4_kms = get_kms(plane);
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enum mdp4_pipe pipe = mdp4_plane->pipe;
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const struct mdp_format *format;
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uint32_t op_mode = 0;
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uint32_t phasex_step = MDP4_VG_PHASE_STEP_DEFAULT;
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uint32_t phasey_step = MDP4_VG_PHASE_STEP_DEFAULT;
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/* src values are in Q16 fixed point, convert to integer: */
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src_x = src_x >> 16;
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src_y = src_y >> 16;
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src_w = src_w >> 16;
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src_h = src_h >> 16;
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DBG("%s: FB[%u] %u,%u,%u,%u -> CRTC[%u] %d,%d,%u,%u", mdp4_plane->name,
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fb->base.id, src_x, src_y, src_w, src_h,
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crtc->base.id, crtc_x, crtc_y, crtc_w, crtc_h);
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if (src_w != crtc_w) {
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op_mode |= MDP4_PIPE_OP_MODE_SCALEX_EN;
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/* TODO calc phasex_step */
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}
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if (src_h != crtc_h) {
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op_mode |= MDP4_PIPE_OP_MODE_SCALEY_EN;
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/* TODO calc phasey_step */
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}
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mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_SIZE(pipe),
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MDP4_PIPE_SRC_SIZE_WIDTH(src_w) |
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MDP4_PIPE_SRC_SIZE_HEIGHT(src_h));
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mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_XY(pipe),
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MDP4_PIPE_SRC_XY_X(src_x) |
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MDP4_PIPE_SRC_XY_Y(src_y));
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mdp4_write(mdp4_kms, REG_MDP4_PIPE_DST_SIZE(pipe),
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MDP4_PIPE_DST_SIZE_WIDTH(crtc_w) |
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MDP4_PIPE_DST_SIZE_HEIGHT(crtc_h));
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mdp4_write(mdp4_kms, REG_MDP4_PIPE_DST_XY(pipe),
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MDP4_PIPE_DST_XY_X(crtc_x) |
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MDP4_PIPE_DST_XY_Y(crtc_y));
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mdp4_plane_set_scanout(plane, fb);
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format = to_mdp_format(msm_framebuffer_format(fb));
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mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_FORMAT(pipe),
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MDP4_PIPE_SRC_FORMAT_A_BPC(format->bpc_a) |
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MDP4_PIPE_SRC_FORMAT_R_BPC(format->bpc_r) |
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MDP4_PIPE_SRC_FORMAT_G_BPC(format->bpc_g) |
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MDP4_PIPE_SRC_FORMAT_B_BPC(format->bpc_b) |
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COND(format->alpha_enable, MDP4_PIPE_SRC_FORMAT_ALPHA_ENABLE) |
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MDP4_PIPE_SRC_FORMAT_CPP(format->cpp - 1) |
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MDP4_PIPE_SRC_FORMAT_UNPACK_COUNT(format->unpack_count - 1) |
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COND(format->unpack_tight, MDP4_PIPE_SRC_FORMAT_UNPACK_TIGHT));
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mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_UNPACK(pipe),
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MDP4_PIPE_SRC_UNPACK_ELEM0(format->unpack[0]) |
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MDP4_PIPE_SRC_UNPACK_ELEM1(format->unpack[1]) |
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MDP4_PIPE_SRC_UNPACK_ELEM2(format->unpack[2]) |
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MDP4_PIPE_SRC_UNPACK_ELEM3(format->unpack[3]));
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mdp4_write(mdp4_kms, REG_MDP4_PIPE_OP_MODE(pipe), op_mode);
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mdp4_write(mdp4_kms, REG_MDP4_PIPE_PHASEX_STEP(pipe), phasex_step);
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mdp4_write(mdp4_kms, REG_MDP4_PIPE_PHASEY_STEP(pipe), phasey_step);
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/* TODO detach from old crtc (if we had more than one) */
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mdp4_crtc_attach(crtc, plane);
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return 0;
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}
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static const char *pipe_names[] = {
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"VG1", "VG2",
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"RGB1", "RGB2", "RGB3",
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"VG3", "VG4",
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};
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enum mdp4_pipe mdp4_plane_pipe(struct drm_plane *plane)
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{
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struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
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return mdp4_plane->pipe;
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}
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/* initialize plane */
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struct drm_plane *mdp4_plane_init(struct drm_device *dev,
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enum mdp4_pipe pipe_id, bool private_plane)
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{
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struct drm_plane *plane = NULL;
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struct mdp4_plane *mdp4_plane;
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int ret;
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enum drm_plane_type type;
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mdp4_plane = kzalloc(sizeof(*mdp4_plane), GFP_KERNEL);
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if (!mdp4_plane) {
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ret = -ENOMEM;
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goto fail;
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}
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plane = &mdp4_plane->base;
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mdp4_plane->pipe = pipe_id;
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mdp4_plane->name = pipe_names[pipe_id];
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mdp4_plane->nformats = mdp4_get_formats(pipe_id, mdp4_plane->formats,
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ARRAY_SIZE(mdp4_plane->formats));
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type = private_plane ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY;
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drm_universal_plane_init(dev, plane, 0xff, &mdp4_plane_funcs,
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mdp4_plane->formats, mdp4_plane->nformats,
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type);
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mdp4_plane_install_properties(plane, &plane->base);
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return plane;
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fail:
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if (plane)
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mdp4_plane_destroy(plane);
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return ERR_PTR(ret);
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}
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