// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2011 Texas Instruments Incorporated - https://www.ti.com/
* Author: Rob Clark <[email protected]>
*/
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_blend.h>
#include <drm/drm_gem_atomic_helper.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_framebuffer.h>
#include "omap_dmm_tiler.h"
#include "omap_drv.h"
/*
* plane funcs
*/
#define to_omap_plane_state(x) container_of(x, struct omap_plane_state, base)
struct omap_plane_state {
/* Must be first. */
struct drm_plane_state base;
struct omap_hw_overlay *overlay;
struct omap_hw_overlay *r_overlay; /* right overlay */
};
#define to_omap_plane(x) container_of(x, struct omap_plane, base)
struct omap_plane {
struct drm_plane base;
enum omap_plane_id id;
};
bool is_omap_plane_dual_overlay(struct drm_plane_state *state)
{
struct omap_plane_state *omap_state = to_omap_plane_state(state);
return !!omap_state->r_overlay;
}
static int omap_plane_prepare_fb(struct drm_plane *plane,
struct drm_plane_state *new_state)
{
if (!new_state->fb)
return 0;
drm_gem_plane_helper_prepare_fb(plane, new_state);
return omap_framebuffer_pin(new_state->fb);
}
static void omap_plane_cleanup_fb(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
if (old_state->fb)
omap_framebuffer_unpin(old_state->fb);
}
static void omap_plane_atomic_update(struct drm_plane *plane,
struct drm_atomic_state *state)
{
struct omap_drm_private *priv = plane->dev->dev_private;
struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
plane);
struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
plane);
struct omap_plane_state *new_omap_state;
struct omap_plane_state *old_omap_state;
struct omap_overlay_info info, r_info;
enum omap_plane_id ovl_id, r_ovl_id;
int ret;
bool dual_ovl;
new_omap_state = to_omap_plane_state(new_state);
old_omap_state = to_omap_plane_state(old_state);
dual_ovl = is_omap_plane_dual_overlay(new_state);
/* Cleanup previously held overlay if needed */
if (old_omap_state->overlay)
omap_overlay_update_state(priv, old_omap_state->overlay);
if (old_omap_state->r_overlay)
omap_overlay_update_state(priv, old_omap_state->r_overlay);
if (!new_omap_state->overlay) {
DBG("[PLANE:%d:%s] no overlay attached", plane->base.id, plane->name);
return;
}
ovl_id = new_omap_state->overlay->id;
DBG("%s, crtc=%p fb=%p", plane->name, new_state->crtc,
new_state->fb);
memset(&info, 0, sizeof(info));
info.rotation_type = OMAP_DSS_ROT_NONE;
info.rotation = DRM_MODE_ROTATE_0;
info.global_alpha = new_state->alpha >> 8;
info.zorder = new_state->normalized_zpos;
if (new_state->pixel_blend_mode == DRM_MODE_BLEND_PREMULTI)
info.pre_mult_alpha = 1;
else
info.pre_mult_alpha = 0;
info.color_encoding = new_state->color_encoding;
info.color_range = new_state->color_range;
r_info = info;
/* update scanout: */
omap_framebuffer_update_scanout(new_state->fb, new_state, &info,
dual_ovl ? &r_info : NULL);
DBG("%s: %dx%d -> %dx%d (%d)",
new_omap_state->overlay->name, info.width, info.height,
info.out_width, info.out_height, info.screen_width);
DBG("%d,%d %pad %pad", info.pos_x, info.pos_y,
&info.paddr, &info.p_uv_addr);
if (dual_ovl) {
r_ovl_id = new_omap_state->r_overlay->id;
/*
* If the current plane uses 2 hw planes the very next
* zorder is used by the r_overlay so we just use the
* main overlay zorder + 1
*/
r_info.zorder = info.zorder + 1;
DBG("%s: %dx%d -> %dx%d (%d)",
new_omap_state->r_overlay->name,
r_info.width, r_info.height,
r_info.out_width, r_info.out_height, r_info.screen_width);
DBG("%d,%d %pad %pad", r_info.pos_x, r_info.pos_y,
&r_info.paddr, &r_info.p_uv_addr);
}
/* and finally, update omapdss: */
ret = dispc_ovl_setup(priv->dispc, ovl_id, &info,
omap_crtc_timings(new_state->crtc), false,
omap_crtc_channel(new_state->crtc));
if (ret) {
dev_err(plane->dev->dev, "Failed to setup plane %s\n",
plane->name);
dispc_ovl_enable(priv->dispc, ovl_id, false);
return;
}
dispc_ovl_enable(priv->dispc, ovl_id, true);
if (dual_ovl) {
ret = dispc_ovl_setup(priv->dispc, r_ovl_id, &r_info,
omap_crtc_timings(new_state->crtc), false,
omap_crtc_channel(new_state->crtc));
if (ret) {
dev_err(plane->dev->dev, "Failed to setup plane right-overlay %s\n",
plane->name);
dispc_ovl_enable(priv->dispc, r_ovl_id, false);
dispc_ovl_enable(priv->dispc, ovl_id, false);
return;
}
dispc_ovl_enable(priv->dispc, r_ovl_id, true);
}
}
static void omap_plane_atomic_disable(struct drm_plane *plane,
struct drm_atomic_state *state)
{
struct omap_drm_private *priv = plane->dev->dev_private;
struct omap_plane *omap_plane = to_omap_plane(plane);
struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
plane);
struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
plane);
struct omap_plane_state *new_omap_state;
struct omap_plane_state *old_omap_state;
new_omap_state = to_omap_plane_state(new_state);
old_omap_state = to_omap_plane_state(old_state);
if (!old_omap_state->overlay)
return;
new_state->rotation = DRM_MODE_ROTATE_0;
new_state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY ? 0 : omap_plane->id;
omap_overlay_update_state(priv, old_omap_state->overlay);
new_omap_state->overlay = NULL;
if (is_omap_plane_dual_overlay(old_state)) {
omap_overlay_update_state(priv, old_omap_state->r_overlay);
new_omap_state->r_overlay = NULL;
}
}
#define FRAC_16_16(mult, div) (((mult) << 16) / (div))
static int omap_plane_atomic_check(struct drm_plane *plane,
struct drm_atomic_state *state)
{
struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
plane);
struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(state,
plane);
struct omap_drm_private *priv = plane->dev->dev_private;
struct omap_plane_state *omap_state = to_omap_plane_state(new_plane_state);
struct omap_global_state *omap_overlay_global_state;
struct drm_crtc_state *crtc_state;
bool new_r_hw_overlay = false;
bool new_hw_overlay = false;
u32 max_width, max_height;
struct drm_crtc *crtc;
u16 width, height;
u32 caps = 0;
u32 fourcc;
int ret;
omap_overlay_global_state = omap_get_global_state(state);
if (IS_ERR(omap_overlay_global_state))
return PTR_ERR(omap_overlay_global_state);
dispc_ovl_get_max_size(priv->dispc, &width, &height);
max_width = width << 16;
max_height = height << 16;
crtc = new_plane_state->crtc ? new_plane_state->crtc : plane->state->crtc;
if (!crtc)
return 0;
crtc_state = drm_atomic_get_existing_crtc_state(state, crtc);
/* we should have a crtc state if the plane is attached to a crtc */
if (WARN_ON(!crtc_state))
return 0;
/*
* Note: these are just sanity checks to filter out totally bad scaling
* factors. The real limits must be calculated case by case, and
* unfortunately we currently do those checks only at the commit
* phase in dispc.
*/
ret = drm_atomic_helper_check_plane_state(new_plane_state, crtc_state,
FRAC_16_16(1, 8), FRAC_16_16(8, 1),
true, true);
if (ret)
return ret;
DBG("%s: visible %d -> %d", plane->name,
old_plane_state->visible, new_plane_state->visible);
if (!new_plane_state->visible) {
omap_overlay_release(state, omap_state->overlay);
omap_overlay_release(state, omap_state->r_overlay);
omap_state->overlay = NULL;
omap_state->r_overlay = NULL;
return 0;
}
if (new_plane_state->crtc_x < 0 || new_plane_state->crtc_y < 0)
return -EINVAL;
if (new_plane_state->crtc_x + new_plane_state->crtc_w > crtc_state->adjusted_mode.hdisplay)
return -EINVAL;
if (new_plane_state->crtc_y + new_plane_state->crtc_h > crtc_state->adjusted_mode.vdisplay)
return -EINVAL;
/* Make sure dimensions are within bounds. */
if (new_plane_state->src_h > max_height || new_plane_state->crtc_h > height)
return -EINVAL;
if (new_plane_state->src_w > max_width || new_plane_state->crtc_w > width) {
bool is_fourcc_yuv = new_plane_state->fb->format->is_yuv;
if (is_fourcc_yuv && (((new_plane_state->src_w >> 16) / 2 & 1) ||
new_plane_state->crtc_w / 2 & 1)) {
/*
* When calculating the split overlay width
* and it yield an odd value we will need to adjust
* the indivual width +/- 1. So make sure it fits
*/
if (new_plane_state->src_w <= ((2 * width - 1) << 16) &&
new_plane_state->crtc_w <= (2 * width - 1))
new_r_hw_overlay = true;
else
return -EINVAL;
} else {
if (new_plane_state->src_w <= (2 * max_width) &&
new_plane_state->crtc_w <= (2 * width))
new_r_hw_overlay = true;
else
return -EINVAL;
}
}
if (new_plane_state->rotation != DRM_MODE_ROTATE_0 &&
!omap_framebuffer_supports_rotation(new_plane_state->fb))
return -EINVAL;
if ((new_plane_state->src_w >> 16) != new_plane_state->crtc_w ||
(new_plane_state->src_h >> 16) != new_plane_state->crtc_h)
caps |= OMAP_DSS_OVL_CAP_SCALE;
fourcc = new_plane_state->fb->format->format;
/*
* (re)allocate hw overlay if we don't have one or
* there is a caps mismatch
*/
if (!omap_state->overlay || (caps & ~omap_state->overlay->caps)) {
new_hw_overlay = true;
} else {
/* check supported format */
if (!dispc_ovl_color_mode_supported(priv->dispc, omap_state->overlay->id,
fourcc))
new_hw_overlay = true;
}
/*
* check if we need two overlays and only have 1 or
* if we had 2 overlays but will only need 1
*/
if ((new_r_hw_overlay && !omap_state->r_overlay) ||
(!new_r_hw_overlay && omap_state->r_overlay))
new_hw_overlay = true;
if (new_hw_overlay) {
struct omap_hw_overlay *old_ovl = omap_state->overlay;
struct omap_hw_overlay *old_r_ovl = omap_state->r_overlay;
struct omap_hw_overlay *new_ovl = NULL;
struct omap_hw_overlay *new_r_ovl = NULL;
omap_overlay_release(state, old_ovl);
omap_overlay_release(state, old_r_ovl);
ret = omap_overlay_assign(state, plane, caps, fourcc, &new_ovl,
new_r_hw_overlay ? &new_r_ovl : NULL);
if (ret) {
DBG("%s: failed to assign hw_overlay", plane->name);
omap_state->overlay = NULL;
omap_state->r_overlay = NULL;
return ret;
}
omap_state->overlay = new_ovl;
if (new_r_hw_overlay)
omap_state->r_overlay = new_r_ovl;
else
omap_state->r_overlay = NULL;
}
DBG("plane: %s overlay_id: %d", plane->name, omap_state->overlay->id);
if (omap_state->r_overlay)
DBG("plane: %s r_overlay_id: %d", plane->name, omap_state->r_overlay->id);
return 0;
}
static const struct drm_plane_helper_funcs omap_plane_helper_funcs = {
.prepare_fb = omap_plane_prepare_fb,
.cleanup_fb = omap_plane_cleanup_fb,
.atomic_check = omap_plane_atomic_check,
.atomic_update = omap_plane_atomic_update,
.atomic_disable = omap_plane_atomic_disable,
};
static void omap_plane_destroy(struct drm_plane *plane)
{
struct omap_plane *omap_plane = to_omap_plane(plane);
DBG("%s", plane->name);
drm_plane_cleanup(plane);
kfree(omap_plane);
}
/* helper to install properties which are common to planes and crtcs */
void omap_plane_install_properties(struct drm_plane *plane,
struct drm_mode_object *obj)
{
struct drm_device *dev = plane->dev;
struct omap_drm_private *priv = dev->dev_private;
if (priv->has_dmm) {
if (!plane->rotation_property)
drm_plane_create_rotation_property(plane,
DRM_MODE_ROTATE_0,
DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_90 |
DRM_MODE_ROTATE_180 | DRM_MODE_ROTATE_270 |
DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y);
/* Attach the rotation property also to the crtc object */
if (plane->rotation_property && obj != &plane->base)
drm_object_attach_property(obj, plane->rotation_property,
DRM_MODE_ROTATE_0);
}
drm_object_attach_property(obj, priv->zorder_prop, 0);
}
static void omap_plane_reset(struct drm_plane *plane)
{
struct omap_plane_state *omap_state;
if (plane->state)
drm_atomic_helper_plane_destroy_state(plane, plane->state);
omap_state = kzalloc(sizeof(*omap_state), GFP_KERNEL);
if (!omap_state)
return;
__drm_atomic_helper_plane_reset(plane, &omap_state->base);
}
static struct drm_plane_state *
omap_plane_atomic_duplicate_state(struct drm_plane *plane)
{
struct omap_plane_state *state, *current_state;
if (WARN_ON(!plane->state))
return NULL;
current_state = to_omap_plane_state(plane->state);
state = kmalloc(sizeof(*state), GFP_KERNEL);
if (!state)
return NULL;
__drm_atomic_helper_plane_duplicate_state(plane, &state->base);
state->overlay = current_state->overlay;
state->r_overlay = current_state->r_overlay;
return &state->base;
}
static void omap_plane_atomic_print_state(struct drm_printer *p,
const struct drm_plane_state *state)
{
struct omap_plane_state *omap_state = to_omap_plane_state(state);
if (omap_state->overlay)
drm_printf(p, "\toverlay=%s (caps=0x%x)\n",
omap_state->overlay->name,
omap_state->overlay->caps);
else
drm_printf(p, "\toverlay=None\n");
if (omap_state->r_overlay)
drm_printf(p, "\tr_overlay=%s (caps=0x%x)\n",
omap_state->r_overlay->name,
omap_state->r_overlay->caps);
else
drm_printf(p, "\tr_overlay=None\n");
}
static int omap_plane_atomic_set_property(struct drm_plane *plane,
struct drm_plane_state *state,
struct drm_property *property,
u64 val)
{
struct omap_drm_private *priv = plane->dev->dev_private;
if (property == priv->zorder_prop)
state->zpos = val;
else
return -EINVAL;
return 0;
}
static int omap_plane_atomic_get_property(struct drm_plane *plane,
const struct drm_plane_state *state,
struct drm_property *property,
u64 *val)
{
struct omap_drm_private *priv = plane->dev->dev_private;
if (property == priv->zorder_prop)
*val = state->zpos;
else
return -EINVAL;
return 0;
}
static const struct drm_plane_funcs omap_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.reset = omap_plane_reset,
.destroy = omap_plane_destroy,
.atomic_duplicate_state = omap_plane_atomic_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
.atomic_set_property = omap_plane_atomic_set_property,
.atomic_get_property = omap_plane_atomic_get_property,
.atomic_print_state = omap_plane_atomic_print_state,
};
static bool omap_plane_supports_yuv(struct drm_plane *plane)
{
struct omap_drm_private *priv = plane->dev->dev_private;
struct omap_plane *omap_plane = to_omap_plane(plane);
const u32 *formats = dispc_ovl_get_color_modes(priv->dispc, omap_plane->id);
u32 i;
for (i = 0; formats[i]; i++)
if (formats[i] == DRM_FORMAT_YUYV ||
formats[i] == DRM_FORMAT_UYVY ||
formats[i] == DRM_FORMAT_NV12)
return true;
return false;
}
/* initialize plane */
struct drm_plane *omap_plane_init(struct drm_device *dev,
int idx, enum drm_plane_type type,
u32 possible_crtcs)
{
struct omap_drm_private *priv = dev->dev_private;
unsigned int num_planes = dispc_get_num_ovls(priv->dispc);
struct drm_plane *plane;
struct omap_plane *omap_plane;
unsigned int zpos;
int ret;
u32 nformats;
const u32 *formats;
if (WARN_ON(idx >= num_planes))
return ERR_PTR(-EINVAL);
omap_plane = kzalloc(sizeof(*omap_plane), GFP_KERNEL);
if (!omap_plane)
return ERR_PTR(-ENOMEM);
omap_plane->id = idx;
DBG("%d: type=%d", omap_plane->id, type);
DBG(" crtc_mask: 0x%04x", possible_crtcs);
formats = dispc_ovl_get_color_modes(priv->dispc, omap_plane->id);
for (nformats = 0; formats[nformats]; ++nformats)
;
plane = &omap_plane->base;
ret = drm_universal_plane_init(dev, plane, possible_crtcs,
&omap_plane_funcs, formats,
nformats, NULL, type, NULL);
if (ret < 0)
goto error;
drm_plane_helper_add(plane, &omap_plane_helper_funcs);
omap_plane_install_properties(plane, &plane->base);
/*
* Set the zpos default depending on whether we are a primary or overlay
* plane.
*/
if (plane->type == DRM_PLANE_TYPE_PRIMARY)
zpos = 0;
else
zpos = omap_plane->id;
drm_plane_create_zpos_property(plane, zpos, 0, num_planes - 1);
drm_plane_create_alpha_property(plane);
drm_plane_create_blend_mode_property(plane, BIT(DRM_MODE_BLEND_PREMULTI) |
BIT(DRM_MODE_BLEND_COVERAGE));
if (omap_plane_supports_yuv(plane))
drm_plane_create_color_properties(plane,
BIT(DRM_COLOR_YCBCR_BT601) |
BIT(DRM_COLOR_YCBCR_BT709),
BIT(DRM_COLOR_YCBCR_FULL_RANGE) |
BIT(DRM_COLOR_YCBCR_LIMITED_RANGE),
DRM_COLOR_YCBCR_BT601,
DRM_COLOR_YCBCR_FULL_RANGE);
return plane;
error:
dev_err(dev->dev, "%s(): could not create plane: %d\n",
__func__, omap_plane->id);
kfree(omap_plane);
return NULL;
}
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