// SPDX-License-Identifier: GPL-2.0+
/*
* R - Car Display Unit Planes
*
* Copyright ( C ) 2013 - 2015 Renesas Electronics Corporation
*
* Contact : Laurent Pinchart ( laurent . pinchart @ ideasonboard . com )
*/
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_blend.h>
#include <drm/drm_crtc.h>
#include <drm/drm_device.h>
#include <drm/drm_fb_dma_helper.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_framebuffer.h>
#include <drm/drm_gem_dma_helper.h>
#include "rcar_du_drv.h"
#include "rcar_du_group.h"
#include "rcar_du_kms.h"
#include "rcar_du_plane.h"
#include "rcar_du_regs.h"
/* -----------------------------------------------------------------------------
* Atomic hardware plane allocator
*
* The hardware plane allocator is solely based on the atomic plane states
* without keeping any external state to avoid races between . atomic_check ( )
* and . atomic_commit ( ) .
*
* The core idea is to avoid using a free planes bitmask that would need to be
* shared between check and commit handlers with a collective knowledge based on
* the allocated hardware plane ( s ) for each KMS plane . The allocator then loops
* over all plane states to compute the free planes bitmask , allocates hardware
* planes based on that bitmask , and stores the result back in the plane states .
*
* For this to work we need to access the current state of planes not touched by
* the atomic update . To ensure that it won ' t be modified , we need to lock all
* planes using drm_atomic_get_plane_state ( ) . This effectively serializes atomic
* updates from . atomic_check ( ) up to completion ( when swapping the states if
* the check step has succeeded ) or rollback ( when freeing the states if the
* check step has failed ) .
*
* Allocation is performed in the . atomic_check ( ) handler and applied
* automatically when the core swaps the old and new states .
*/
static bool rcar_du_plane_needs_realloc(
const struct rcar_du_plane_state *old_state,
const struct rcar_du_plane_state *new_state)
{
/*
* Lowering the number of planes doesn ' t strictly require reallocation
* as the extra hardware plane will be freed when committing , but doing
* so could lead to more fragmentation .
*/
if (!old_state->format ||
old_state->format->planes != new_state->format->planes)
return true ;
/* Reallocate hardware planes if the source has changed. */
if (old_state->source != new_state->source)
return true ;
return false ;
}
static unsigned int rcar_du_plane_hwmask(struct rcar_du_plane_state *state)
{
unsigned int mask;
if (state->hwindex == -1 )
return 0 ;
mask = 1 << state->hwindex;
if (state->format->planes == 2 )
mask |= 1 << ((state->hwindex + 1 ) % 8 );
return mask;
}
/*
* The R8A7790 DU can source frames directly from the VSP1 devices VSPD0 and
* VSPD1 . VSPD0 feeds DU0 / 1 plane 0 , and VSPD1 feeds either DU2 plane 0 or
* DU0 / 1 plane 1 .
*
* Allocate the correct fixed plane when sourcing frames from VSPD0 or VSPD1 ,
* and allocate planes in reverse index order otherwise to ensure maximum
* availability of planes 0 and 1 .
*
* The caller is responsible for ensuring that the requested source is
* compatible with the DU revision .
*/
static int rcar_du_plane_hwalloc(struct rcar_du_plane *plane,
struct rcar_du_plane_state *state,
unsigned int free)
{
unsigned int num_planes = state->format->planes;
int fixed = -1 ;
int i;
if (state->source == RCAR_DU_PLANE_VSPD0) {
/* VSPD0 feeds plane 0 on DU0/1. */
if (plane->group->index != 0 )
return -EINVAL;
fixed = 0 ;
} else if (state->source == RCAR_DU_PLANE_VSPD1) {
/* VSPD1 feeds plane 1 on DU0/1 or plane 0 on DU2. */
fixed = plane->group->index == 0 ? 1 : 0 ;
}
if (fixed >= 0 )
return free & (1 << fixed) ? fixed : -EBUSY;
for (i = RCAR_DU_NUM_HW_PLANES - 1 ; i >= 0 ; --i) {
if (!(free & (1 << i)))
continue ;
if (num_planes == 1 || free & (1 << ((i + 1 ) % 8 )))
break ;
}
return i < 0 ? -EBUSY : i;
}
int rcar_du_atomic_check_planes(struct drm_device *dev,
struct drm_atomic_state *state)
{
struct rcar_du_device *rcdu = to_rcar_du_device(dev);
unsigned int group_freed_planes[RCAR_DU_MAX_GROUPS] = { 0 , };
unsigned int group_free_planes[RCAR_DU_MAX_GROUPS] = { 0 , };
bool needs_realloc = false ;
unsigned int groups = 0 ;
unsigned int i;
struct drm_plane *drm_plane;
struct drm_plane_state *old_drm_plane_state;
struct drm_plane_state *new_drm_plane_state;
/* Check if hardware planes need to be reallocated. */
for_each_oldnew_plane_in_state(state, drm_plane, old_drm_plane_state,
new_drm_plane_state, i) {
struct rcar_du_plane_state *old_plane_state;
struct rcar_du_plane_state *new_plane_state;
struct rcar_du_plane *plane;
unsigned int index;
plane = to_rcar_plane(drm_plane);
old_plane_state = to_rcar_plane_state(old_drm_plane_state);
new_plane_state = to_rcar_plane_state(new_drm_plane_state);
dev_dbg(rcdu->dev, "%s: checking plane (%u,%tu)\n" , __func__,
plane->group->index, plane - plane->group->planes);
/*
* If the plane is being disabled we don ' t need to go through
* the full reallocation procedure . Just mark the hardware
* plane ( s ) as freed .
*/
if (!new_plane_state->format) {
dev_dbg(rcdu->dev, "%s: plane is being disabled\n" ,
__func__);
index = plane - plane->group->planes;
group_freed_planes[plane->group->index] |= 1 << index;
new_plane_state->hwindex = -1 ;
continue ;
}
/*
* If the plane needs to be reallocated mark it as such , and
* mark the hardware plane ( s ) as free .
*/
if (rcar_du_plane_needs_realloc(old_plane_state, new_plane_state)) {
dev_dbg(rcdu->dev, "%s: plane needs reallocation\n" ,
__func__);
groups |= 1 << plane->group->index;
needs_realloc = true ;
index = plane - plane->group->planes;
group_freed_planes[plane->group->index] |= 1 << index;
new_plane_state->hwindex = -1 ;
}
}
if (!needs_realloc)
return 0 ;
/*
* Grab all plane states for the groups that need reallocation to ensure
* locking and avoid racy updates . This serializes the update operation ,
* but there ' s not much we can do about it as that ' s the hardware
* design .
*
* Compute the used planes mask for each group at the same time to avoid
* looping over the planes separately later .
*/
while (groups) {
unsigned int index = ffs(groups) - 1 ;
struct rcar_du_group *group = &rcdu->groups[index];
unsigned int used_planes = 0 ;
dev_dbg(rcdu->dev, "%s: finding free planes for group %u\n" ,
__func__, index);
for (i = 0 ; i < group->num_planes; ++i) {
struct rcar_du_plane *plane = &group->planes[i];
struct rcar_du_plane_state *new_plane_state;
struct drm_plane_state *s;
s = drm_atomic_get_plane_state(state, &plane->plane);
if (IS_ERR(s))
return PTR_ERR(s);
/*
* If the plane has been freed in the above loop its
* hardware planes must not be added to the used planes
* bitmask . However , the current state doesn ' t reflect
* the free state yet , as we ' ve modified the new state
* above . Use the local freed planes list to check for
* that condition instead .
*/
if (group_freed_planes[index] & (1 << i)) {
dev_dbg(rcdu->dev,
"%s: plane (%u,%tu) has been freed, skipping\n" ,
__func__, plane->group->index,
plane - plane->group->planes);
continue ;
}
new_plane_state = to_rcar_plane_state(s);
used_planes |= rcar_du_plane_hwmask(new_plane_state);
dev_dbg(rcdu->dev,
"%s: plane (%u,%tu) uses %u hwplanes (index %d)\n" ,
__func__, plane->group->index,
plane - plane->group->planes,
new_plane_state->format ?
new_plane_state->format->planes : 0 ,
new_plane_state->hwindex);
}
group_free_planes[index] = 0 xff & ~used_planes;
groups &= ~(1 << index);
dev_dbg(rcdu->dev, "%s: group %u free planes mask 0x%02x\n" ,
__func__, index, group_free_planes[index]);
}
/* Reallocate hardware planes for each plane that needs it. */
for_each_oldnew_plane_in_state(state, drm_plane, old_drm_plane_state,
new_drm_plane_state, i) {
struct rcar_du_plane_state *old_plane_state;
struct rcar_du_plane_state *new_plane_state;
struct rcar_du_plane *plane;
unsigned int crtc_planes;
unsigned int free;
int idx;
plane = to_rcar_plane(drm_plane);
old_plane_state = to_rcar_plane_state(old_drm_plane_state);
new_plane_state = to_rcar_plane_state(new_drm_plane_state);
dev_dbg(rcdu->dev, "%s: allocating plane (%u,%tu)\n" , __func__,
plane->group->index, plane - plane->group->planes);
/*
* Skip planes that are being disabled or don ' t need to be
* reallocated .
*/
if (!new_plane_state->format ||
!rcar_du_plane_needs_realloc(old_plane_state, new_plane_state))
continue ;
/*
* Try to allocate the plane from the free planes currently
* associated with the target CRTC to avoid restarting the CRTC
* group and thus minimize flicker . If it fails fall back to
* allocating from all free planes .
*/
crtc_planes = to_rcar_crtc(new_plane_state->state.crtc)->index % 2
? plane->group->dptsr_planes
: ~plane->group->dptsr_planes;
free = group_free_planes[plane->group->index];
idx = rcar_du_plane_hwalloc(plane, new_plane_state,
free & crtc_planes);
if (idx < 0 )
idx = rcar_du_plane_hwalloc(plane, new_plane_state,
free);
if (idx < 0 ) {
dev_dbg(rcdu->dev, "%s: no available hardware plane\n" ,
__func__);
return idx;
}
dev_dbg(rcdu->dev, "%s: allocated %u hwplanes (index %u)\n" ,
__func__, new_plane_state->format->planes, idx);
new_plane_state->hwindex = idx;
group_free_planes[plane->group->index] &=
~rcar_du_plane_hwmask(new_plane_state);
dev_dbg(rcdu->dev, "%s: group %u free planes mask 0x%02x\n" ,
__func__, plane->group->index,
group_free_planes[plane->group->index]);
}
return 0 ;
}
/* -----------------------------------------------------------------------------
* Plane Setup
*/
#define RCAR_DU_COLORKEY_NONE (0 << 24 )
#define RCAR_DU_COLORKEY_SOURCE (1 << 24 )
#define RCAR_DU_COLORKEY_MASK (1 << 24 )
static void rcar_du_plane_write(struct rcar_du_group *rgrp,
unsigned int index, u32 reg, u32 data)
{
rcar_du_write(rgrp->dev, rgrp->mmio_offset + index * PLANE_OFF + reg,
data);
}
static void rcar_du_plane_setup_scanout(struct rcar_du_group *rgrp,
const struct rcar_du_plane_state *state)
{
unsigned int src_x = state->state.src.x1 >> 16 ;
unsigned int src_y = state->state.src.y1 >> 16 ;
unsigned int index = state->hwindex;
unsigned int pitch;
bool interlaced;
u32 dma[2 ];
interlaced = state->state.crtc->state->adjusted_mode.flags
& DRM_MODE_FLAG_INTERLACE;
if (state->source == RCAR_DU_PLANE_MEMORY) {
struct drm_framebuffer *fb = state->state.fb;
struct drm_gem_dma_object *gem;
unsigned int i;
if (state->format->planes == 2 )
pitch = fb->pitches[0 ];
else
pitch = fb->pitches[0 ] * 8 / state->format->bpp;
for (i = 0 ; i < state->format->planes; ++i) {
gem = drm_fb_dma_get_gem_obj(fb, i);
dma[i] = gem->dma_addr + fb->offsets[i];
}
} else {
pitch = drm_rect_width(&state->state.src) >> 16 ;
dma[0 ] = 0 ;
dma[1 ] = 0 ;
}
/*
* Memory pitch ( expressed in pixels ) . Must be doubled for interlaced
* operation with 32 bpp formats .
*/
rcar_du_plane_write(rgrp, index, PnMWR,
(interlaced && state->format->bpp == 32 ) ?
pitch * 2 : pitch);
/*
* The Y position is expressed in raster line units and must be doubled
* for 32 bpp formats , according to the R8A7790 datasheet . No mention of
* doubling the Y position is found in the R8A7779 datasheet , but the
* rule seems to apply there as well .
*
* Despite not being documented , doubling seem not to be needed when
* operating in interlaced mode .
*
* Similarly , for the second plane , NV12 and NV21 formats seem to
* require a halved Y position value , in both progressive and interlaced
* modes .
*/
rcar_du_plane_write(rgrp, index, PnSPXR, src_x);
rcar_du_plane_write(rgrp, index, PnSPYR, src_y *
(!interlaced && state->format->bpp == 32 ? 2 : 1 ));
rcar_du_plane_write(rgrp, index, PnDSA0R, dma[0 ]);
if (state->format->planes == 2 ) {
index = (index + 1 ) % 8 ;
rcar_du_plane_write(rgrp, index, PnMWR, pitch);
rcar_du_plane_write(rgrp, index, PnSPXR, src_x);
rcar_du_plane_write(rgrp, index, PnSPYR, src_y *
(state->format->bpp == 16 ? 2 : 1 ) / 2 );
rcar_du_plane_write(rgrp, index, PnDSA0R, dma[1 ]);
}
}
static void rcar_du_plane_setup_mode(struct rcar_du_group *rgrp,
unsigned int index,
const struct rcar_du_plane_state *state)
{
u32 colorkey;
u32 pnmr;
/*
* The PnALPHAR register controls alpha - blending in 16 bpp formats
* ( ARGB1555 and XRGB1555 ) .
*
* For ARGB , set the alpha value to 0 , and enable alpha - blending when
* the A bit is 0 . This maps A = 0 to alpha = 0 and A = 1 to alpha = 255 .
*
* For XRGB , set the alpha value to the plane - wide alpha value and
* enable alpha - blending regardless of the X bit value .
*/
if (state->format->fourcc != DRM_FORMAT_XRGB1555)
rcar_du_plane_write(rgrp, index, PnALPHAR, PnALPHAR_ABIT_0);
else
rcar_du_plane_write(rgrp, index, PnALPHAR,
PnALPHAR_ABIT_X | state->state.alpha >> 8 );
pnmr = PnMR_BM_MD | state->format->pnmr;
/*
* Disable color keying when requested . YUV formats have the
* PnMR_SPIM_TP_OFF bit set in their pnmr field , disabling color keying
* automatically .
*/
if ((state->colorkey & RCAR_DU_COLORKEY_MASK) == RCAR_DU_COLORKEY_NONE)
pnmr |= PnMR_SPIM_TP_OFF;
/* For packed YUV formats we need to select the U/V order. */
if (state->format->fourcc == DRM_FORMAT_YUYV)
pnmr |= PnMR_YCDF_YUYV;
rcar_du_plane_write(rgrp, index, PnMR, pnmr);
switch (state->format->fourcc) {
case DRM_FORMAT_RGB565:
colorkey = ((state->colorkey & 0 xf80000) >> 8 )
| ((state->colorkey & 0 x00fc00) >> 5 )
| ((state->colorkey & 0 x0000f8) >> 3 );
rcar_du_plane_write(rgrp, index, PnTC2R, colorkey);
break ;
case DRM_FORMAT_ARGB1555:
case DRM_FORMAT_XRGB1555:
colorkey = ((state->colorkey & 0 xf80000) >> 9 )
| ((state->colorkey & 0 x00f800) >> 6 )
| ((state->colorkey & 0 x0000f8) >> 3 );
rcar_du_plane_write(rgrp, index, PnTC2R, colorkey);
break ;
case DRM_FORMAT_XRGB8888:
case DRM_FORMAT_ARGB8888:
rcar_du_plane_write(rgrp, index, PnTC3R,
PnTC3R_CODE | (state->colorkey & 0 xffffff));
break ;
}
}
static void rcar_du_plane_setup_format_gen2(struct rcar_du_group *rgrp,
unsigned int index,
const struct rcar_du_plane_state *state)
{
u32 ddcr2 = PnDDCR2_CODE;
u32 ddcr4;
/*
* Data format
*
* The data format is selected by the DDDF field in PnMR and the EDF
* field in DDCR4 .
*/
rcar_du_plane_setup_mode(rgrp, index, state);
if (state->format->planes == 2 ) {
if (state->hwindex != index) {
if (state->format->fourcc == DRM_FORMAT_NV12 ||
state->format->fourcc == DRM_FORMAT_NV21)
ddcr2 |= PnDDCR2_Y420;
if (state->format->fourcc == DRM_FORMAT_NV21)
ddcr2 |= PnDDCR2_NV21;
ddcr2 |= PnDDCR2_DIVU;
} else {
ddcr2 |= PnDDCR2_DIVY;
}
}
rcar_du_plane_write(rgrp, index, PnDDCR2, ddcr2);
ddcr4 = state->format->edf | PnDDCR4_CODE;
if (state->source != RCAR_DU_PLANE_MEMORY)
ddcr4 |= PnDDCR4_VSPS;
rcar_du_plane_write(rgrp, index, PnDDCR4, ddcr4);
}
static void rcar_du_plane_setup_format_gen3(struct rcar_du_group *rgrp,
unsigned int index,
const struct rcar_du_plane_state *state)
{
struct rcar_du_device *rcdu = rgrp->dev;
u32 pnmr = state->format->pnmr | PnMR_SPIM_TP_OFF;
if (rcdu->info->features & RCAR_DU_FEATURE_NO_BLENDING) {
/* No blending. ALP and EOR are not supported. */
pnmr &= ~(PnMR_SPIM_ALP | PnMR_SPIM_EOR);
}
rcar_du_plane_write(rgrp, index, PnMR, pnmr);
rcar_du_plane_write(rgrp, index, PnDDCR4,
state->format->edf | PnDDCR4_CODE);
/*
* On Gen3 , some DU channels have two planes , each being wired to a
* separate VSPD instance . The DU can then blend two planes . While
* this feature isn ' t used by the driver , issues related to alpha
* blending ( such as incorrect colors or planes being invisible ) may
* still occur if the PnALPHAR register has a stale value . Set the
* register to 0 to avoid this .
*/
rcar_du_plane_write(rgrp, index, PnALPHAR, 0 );
}
static void rcar_du_plane_setup_format(struct rcar_du_group *rgrp,
unsigned int index,
const struct rcar_du_plane_state *state)
{
struct rcar_du_device *rcdu = rgrp->dev;
const struct drm_rect *dst = &state->state.dst;
if (rcdu->info->gen < 3 )
rcar_du_plane_setup_format_gen2(rgrp, index, state);
else
rcar_du_plane_setup_format_gen3(rgrp, index, state);
/* Destination position and size */
rcar_du_plane_write(rgrp, index, PnDSXR, drm_rect_width(dst));
rcar_du_plane_write(rgrp, index, PnDSYR, drm_rect_height(dst));
rcar_du_plane_write(rgrp, index, PnDPXR, dst->x1);
rcar_du_plane_write(rgrp, index, PnDPYR, dst->y1);
if (rcdu->info->gen < 3 ) {
/* Wrap-around and blinking, disabled */
rcar_du_plane_write(rgrp, index, PnWASPR, 0 );
rcar_du_plane_write(rgrp, index, PnWAMWR, 4095 );
rcar_du_plane_write(rgrp, index, PnBTR, 0 );
rcar_du_plane_write(rgrp, index, PnMLR, 0 );
}
}
void __rcar_du_plane_setup(struct rcar_du_group *rgrp,
const struct rcar_du_plane_state *state)
{
struct rcar_du_device *rcdu = rgrp->dev;
rcar_du_plane_setup_format(rgrp, state->hwindex, state);
if (state->format->planes == 2 )
rcar_du_plane_setup_format(rgrp, (state->hwindex + 1 ) % 8 ,
state);
if (rcdu->info->gen >= 3 )
return ;
rcar_du_plane_setup_scanout(rgrp, state);
if (state->source == RCAR_DU_PLANE_VSPD1) {
unsigned int vspd1_sink = rgrp->index ? 2 : 0 ;
if (rcdu->vspd1_sink != vspd1_sink) {
rcdu->vspd1_sink = vspd1_sink;
rcar_du_set_dpad0_vsp1_routing(rcdu);
/*
* Changes to the VSP1 sink take effect on DRES and thus
* need a restart of the group .
*/
rgrp->need_restart = true ;
}
}
}
int __rcar_du_plane_atomic_check(struct drm_plane *plane,
struct drm_plane_state *state,
const struct rcar_du_format_info **format)
{
struct drm_device *dev = plane->dev;
struct drm_crtc_state *crtc_state;
int ret;
if (!state->crtc) {
/*
* The visible field is not reset by the DRM core but only
* updated by drm_atomic_helper_check_plane_state ( ) , set it
* manually .
*/
state->visible = false ;
*format = NULL;
return 0 ;
}
crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc);
if (IS_ERR(crtc_state))
return PTR_ERR(crtc_state);
ret = drm_atomic_helper_check_plane_state(state, crtc_state,
DRM_PLANE_NO_SCALING,
DRM_PLANE_NO_SCALING,
true , true );
if (ret < 0 )
return ret;
if (!state->visible) {
*format = NULL;
return 0 ;
}
*format = rcar_du_format_info(state->fb->format->format);
if (*format == NULL) {
dev_dbg(dev->dev, "%s: unsupported format %p4cc\n" , __func__,
&state->fb->format->format);
return -EINVAL;
}
return 0 ;
}
static int rcar_du_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 rcar_du_plane_state *rstate = to_rcar_plane_state(new_plane_state);
return __rcar_du_plane_atomic_check(plane, new_plane_state,
&rstate->format);
}
static void rcar_du_plane_atomic_update(struct drm_plane *plane,
struct drm_atomic_state *state)
{
struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, plane);
struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, plane);
struct rcar_du_plane *rplane = to_rcar_plane(plane);
struct rcar_du_plane_state *old_rstate;
struct rcar_du_plane_state *new_rstate;
if (!new_state->visible)
return ;
rcar_du_plane_setup(rplane);
/*
* Check whether the source has changed from memory to live source or
* from live source to memory . The source has been configured by the
* VSPS bit in the PnDDCR4 register . Although the datasheet states that
* the bit is updated during vertical blanking , it seems that updates
* only occur when the DU group is held in reset through the DSYSR . DRES
* bit . We thus need to restart the group if the source changes .
*/
old_rstate = to_rcar_plane_state(old_state);
new_rstate = to_rcar_plane_state(new_state);
if ((old_rstate->source == RCAR_DU_PLANE_MEMORY) !=
(new_rstate->source == RCAR_DU_PLANE_MEMORY))
rplane->group->need_restart = true ;
}
static const struct drm_plane_helper_funcs rcar_du_plane_helper_funcs = {
.atomic_check = rcar_du_plane_atomic_check,
.atomic_update = rcar_du_plane_atomic_update,
};
static const struct drm_plane_helper_funcs rcar_du_primary_plane_helper_funcs = {
.atomic_check = rcar_du_plane_atomic_check,
.atomic_update = rcar_du_plane_atomic_update,
.get_scanout_buffer = drm_fb_dma_get_scanout_buffer,
};
static struct drm_plane_state *
rcar_du_plane_atomic_duplicate_state(struct drm_plane *plane)
{
struct rcar_du_plane_state *state;
struct rcar_du_plane_state *copy;
if (WARN_ON(!plane->state))
return NULL;
state = to_rcar_plane_state(plane->state);
copy = kmemdup(state, sizeof (*state), GFP_KERNEL);
if (copy == NULL)
return NULL;
__drm_atomic_helper_plane_duplicate_state(plane, ©->state);
return ©->state;
}
static void rcar_du_plane_atomic_destroy_state(struct drm_plane *plane,
struct drm_plane_state *state)
{
__drm_atomic_helper_plane_destroy_state(state);
kfree(to_rcar_plane_state(state));
}
static void rcar_du_plane_reset(struct drm_plane *plane)
{
struct rcar_du_plane_state *state;
if (plane->state) {
rcar_du_plane_atomic_destroy_state(plane, plane->state);
plane->state = NULL;
}
state = kzalloc(sizeof (*state), GFP_KERNEL);
if (state == NULL)
return ;
__drm_atomic_helper_plane_reset(plane, &state->state);
state->hwindex = -1 ;
state->source = RCAR_DU_PLANE_MEMORY;
state->colorkey = RCAR_DU_COLORKEY_NONE;
}
static int rcar_du_plane_atomic_set_property(struct drm_plane *plane,
struct drm_plane_state *state,
struct drm_property *property,
uint64_t val)
{
struct rcar_du_plane_state *rstate = to_rcar_plane_state(state);
struct rcar_du_device *rcdu = to_rcar_plane(plane)->group->dev;
if (property == rcdu->props.colorkey)
rstate->colorkey = val;
else
return -EINVAL;
return 0 ;
}
static int rcar_du_plane_atomic_get_property(struct drm_plane *plane,
const struct drm_plane_state *state, struct drm_property *property,
uint64_t *val)
{
const struct rcar_du_plane_state *rstate =
container_of(state, const struct rcar_du_plane_state, state);
struct rcar_du_device *rcdu = to_rcar_plane(plane)->group->dev;
if (property == rcdu->props.colorkey)
*val = rstate->colorkey;
else
return -EINVAL;
return 0 ;
}
static const struct drm_plane_funcs rcar_du_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.reset = rcar_du_plane_reset,
.destroy = drm_plane_cleanup,
.atomic_duplicate_state = rcar_du_plane_atomic_duplicate_state,
.atomic_destroy_state = rcar_du_plane_atomic_destroy_state,
.atomic_set_property = rcar_du_plane_atomic_set_property,
.atomic_get_property = rcar_du_plane_atomic_get_property,
};
static const uint32_t formats[] = {
DRM_FORMAT_RGB565,
DRM_FORMAT_ARGB1555,
DRM_FORMAT_XRGB1555,
DRM_FORMAT_XRGB8888,
DRM_FORMAT_ARGB8888,
DRM_FORMAT_UYVY,
DRM_FORMAT_YUYV,
DRM_FORMAT_NV12,
DRM_FORMAT_NV21,
DRM_FORMAT_NV16,
};
int rcar_du_planes_init(struct rcar_du_group *rgrp)
{
struct rcar_du_device *rcdu = rgrp->dev;
unsigned int crtcs;
unsigned int i;
int ret;
/*
* Create one primary plane per CRTC in this group and seven overlay
* planes .
*/
rgrp->num_planes = rgrp->num_crtcs + 7 ;
crtcs = ((1 << rcdu->num_crtcs) - 1 ) & (3 << (2 * rgrp->index));
for (i = 0 ; i < rgrp->num_planes; ++i) {
enum drm_plane_type type = i < rgrp->num_crtcs
? DRM_PLANE_TYPE_PRIMARY
: DRM_PLANE_TYPE_OVERLAY;
struct rcar_du_plane *plane = &rgrp->planes[i];
plane->group = rgrp;
ret = drm_universal_plane_init(&rcdu->ddev, &plane->plane,
crtcs, &rcar_du_plane_funcs,
formats, ARRAY_SIZE(formats),
NULL, type, NULL);
if (ret < 0 )
return ret;
if (type == DRM_PLANE_TYPE_PRIMARY)
drm_plane_helper_add(&plane->plane,
&rcar_du_primary_plane_helper_funcs);
else
drm_plane_helper_add(&plane->plane,
&rcar_du_plane_helper_funcs);
drm_plane_create_alpha_property(&plane->plane);
if (type == DRM_PLANE_TYPE_PRIMARY) {
drm_plane_create_zpos_immutable_property(&plane->plane,
0 );
} else {
drm_object_attach_property(&plane->plane.base,
rcdu->props.colorkey,
RCAR_DU_COLORKEY_NONE);
drm_plane_create_zpos_property(&plane->plane, 1 , 1 , 7 );
}
}
return 0 ;
}
Messung V0.5 in Prozent C=96 H=98 G=96
¤ Dauer der Verarbeitung: 0.22 Sekunden
(vorverarbeitet am 2026-10-04)
¤
*© Formatika GbR, Deutschland