mirrors/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2025-11-04 10:40:15 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

drm/imx: atomic phase 1: Use transitional atomic CRTC and plane helpers

Browse source 
Use the drm_plane_helper_update/disable() and drm_helper_crtc_mode_set()
transitional atomic helpers.  The crtc->mode_set_nofb callback is added
so that the primary plane is no longer tied to the CRTC.  Check/update
logics are separated to make sure crtc->mode_set_nofb and plane->atomic_update
are always successful.  Also, some necessary logics are tweaked for a smooth
transition.

Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This commit is contained in:
Liu Ying 2016-07-08 17:40:55 +08:00 committed by Philipp Zabel
parent d7868cb7ac
commit 33f1423530
5 changed files with 439 additions and 351 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

233
drivers/gpu/drm/imx/ipuv3-crtc.c
View file

@ -73,7 +73,7 @@ struct ipu_crtc {
#define to_ipu_crtc(x) container_of(x, struct ipu_crtc, base)
static void ipu_fb_enable(struct ipu_crtc *ipu_crtc)
static void ipu_crtc_enable(struct ipu_crtc *ipu_crtc)
{
struct ipu_soc *ipu = dev_get_drvdata(ipu_crtc->dev->parent);
@ -81,30 +81,30 @@ static void ipu_fb_enable(struct ipu_crtc *ipu_crtc)
return;
ipu_dc_enable(ipu);
ipu_plane_enable(ipu_crtc->plane[0]);
/* Start DC channel and DI after IDMAC */
ipu_dc_enable_channel(ipu_crtc->dc);
ipu_di_enable(ipu_crtc->di);
drm_crtc_vblank_on(&ipu_crtc->base);
ipu_crtc->enabled = 1;
/*
* In order not to be warned on enabling vblank failure,
* we should call drm_crtc_vblank_on() after ->enabled is set to 1.
*/
drm_crtc_vblank_on(&ipu_crtc->base);
}
static void ipu_fb_disable(struct ipu_crtc *ipu_crtc)
static void ipu_crtc_disable(struct ipu_crtc *ipu_crtc)
{
struct ipu_soc *ipu = dev_get_drvdata(ipu_crtc->dev->parent);
if (!ipu_crtc->enabled)
return;
/* Stop DC channel and DI before IDMAC */
ipu_dc_disable_channel(ipu_crtc->dc);
ipu_di_disable(ipu_crtc->di);
ipu_plane_disable(ipu_crtc->plane[0]);
ipu_dc_disable(ipu);
drm_crtc_vblank_off(&ipu_crtc->base);
ipu_crtc->enabled = 0;
drm_crtc_vblank_off(&ipu_crtc->base);
}
static void ipu_crtc_dpms(struct drm_crtc *crtc, int mode)
@ -115,12 +115,12 @@ static void ipu_crtc_dpms(struct drm_crtc *crtc, int mode)
switch (mode) {
case DRM_MODE_DPMS_ON:
ipu_fb_enable(ipu_crtc);
ipu_crtc_enable(ipu_crtc);
break;
case DRM_MODE_DPMS_STANDBY:
case DRM_MODE_DPMS_SUSPEND:
case DRM_MODE_DPMS_OFF:
ipu_fb_disable(ipu_crtc);
ipu_crtc_disable(ipu_crtc);
break;
}
}
@ -234,18 +234,89 @@ static const struct drm_crtc_funcs ipu_crtc_funcs = {
.page_flip = ipu_page_flip,
};
static int ipu_crtc_mode_set(struct drm_crtc *crtc,
struct drm_display_mode *orig_mode,
struct drm_display_mode *mode,
int x, int y,
struct drm_framebuffer *old_fb)
static void ipu_crtc_handle_pageflip(struct ipu_crtc *ipu_crtc)
{
unsigned long flags;
struct drm_device *drm = ipu_crtc->base.dev;
struct ipu_flip_work *work = ipu_crtc->flip_work;
spin_lock_irqsave(&drm->event_lock, flags);
if (work->page_flip_event)
drm_crtc_send_vblank_event(&ipu_crtc->base,
work->page_flip_event);
imx_drm_crtc_vblank_put(ipu_crtc->imx_crtc);
spin_unlock_irqrestore(&drm->event_lock, flags);
}
static irqreturn_t ipu_irq_handler(int irq, void *dev_id)
{
struct ipu_crtc *ipu_crtc = dev_id;
imx_drm_handle_vblank(ipu_crtc->imx_crtc);
if (ipu_crtc->flip_state == IPU_FLIP_SUBMITTED) {
struct ipu_plane *plane = ipu_crtc->plane[0];
ipu_plane_set_base(plane, ipu_crtc->base.primary->fb);
ipu_crtc_handle_pageflip(ipu_crtc);
queue_work(ipu_crtc->flip_queue,
&ipu_crtc->flip_work->unref_work);
ipu_crtc->flip_state = IPU_FLIP_NONE;
}
return IRQ_HANDLED;
}
static bool ipu_crtc_mode_fixup(struct drm_crtc *crtc,
const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
struct videomode vm;
int ret;
drm_display_mode_to_videomode(adjusted_mode, &vm);
ret = ipu_di_adjust_videomode(ipu_crtc->di, &vm);
if (ret)
return false;
if ((vm.vsync_len == 0) || (vm.hsync_len == 0))
return false;
drm_display_mode_from_videomode(&vm, adjusted_mode);
return true;
}
static void ipu_crtc_prepare(struct drm_crtc *crtc)
{
struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
ipu_crtc_disable(ipu_crtc);
}
static void ipu_crtc_commit(struct drm_crtc *crtc)
{
struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
ipu_crtc_enable(ipu_crtc);
}
static int ipu_crtc_atomic_check(struct drm_crtc *crtc,
struct drm_crtc_state *state)
{
return 0;
}
static void ipu_crtc_mode_set_nofb(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
struct drm_encoder *encoder;
struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
struct drm_display_mode *mode = &crtc->state->adjusted_mode;
struct ipu_di_signal_cfg sig_cfg = {};
unsigned long encoder_types = 0;
int ret;
dev_dbg(ipu_crtc->dev, "%s: mode->hdisplay: %d\n", __func__,
mode->hdisplay);
@ -283,109 +354,34 @@ static int ipu_crtc_mode_set(struct drm_crtc *crtc,
drm_display_mode_to_videomode(mode, &sig_cfg.mode);
ret = ipu_dc_init_sync(ipu_crtc->dc, ipu_crtc->di,
mode->flags & DRM_MODE_FLAG_INTERLACE,
ipu_crtc->bus_format, mode->hdisplay);
if (ret) {
dev_err(ipu_crtc->dev,
"initializing display controller failed with %d\n",
ret);
return ret;
}
ret = ipu_di_init_sync_panel(ipu_crtc->di, &sig_cfg);
if (ret) {
dev_err(ipu_crtc->dev,
"initializing panel failed with %d\n", ret);
return ret;
}
return ipu_plane_mode_set(ipu_crtc->plane[0], crtc, mode,
crtc->primary->fb,
0, 0, mode->hdisplay, mode->vdisplay,
x, y, mode->hdisplay, mode->vdisplay,
mode->flags & DRM_MODE_FLAG_INTERLACE);
}
static void ipu_crtc_handle_pageflip(struct ipu_crtc *ipu_crtc)
{
unsigned long flags;
struct drm_device *drm = ipu_crtc->base.dev;
struct ipu_flip_work *work = ipu_crtc->flip_work;
spin_lock_irqsave(&drm->event_lock, flags);
if (work->page_flip_event)
drm_crtc_send_vblank_event(&ipu_crtc->base,
work->page_flip_event);
imx_drm_crtc_vblank_put(ipu_crtc->imx_crtc);
spin_unlock_irqrestore(&drm->event_lock, flags);
}
static irqreturn_t ipu_irq_handler(int irq, void *dev_id)
{
struct ipu_crtc *ipu_crtc = dev_id;
imx_drm_handle_vblank(ipu_crtc->imx_crtc);
if (ipu_crtc->flip_state == IPU_FLIP_SUBMITTED) {
struct ipu_plane *plane = ipu_crtc->plane[0];
ipu_plane_set_base(plane, ipu_crtc->base.primary->fb,
plane->x, plane->y);
ipu_crtc_handle_pageflip(ipu_crtc);
queue_work(ipu_crtc->flip_queue,
&ipu_crtc->flip_work->unref_work);
ipu_crtc->flip_state = IPU_FLIP_NONE;
}
return IRQ_HANDLED;
}
static bool ipu_crtc_mode_fixup(struct drm_crtc *crtc,
const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
struct videomode vm;
int ret;
drm_display_mode_to_videomode(adjusted_mode, &vm);
ret = ipu_di_adjust_videomode(ipu_crtc->di, &vm);
if (ret)
return false;
drm_display_mode_from_videomode(&vm, adjusted_mode);
return true;
}
static void ipu_crtc_prepare(struct drm_crtc *crtc)
{
struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
ipu_fb_disable(ipu_crtc);
}
static void ipu_crtc_commit(struct drm_crtc *crtc)
{
struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
ipu_fb_enable(ipu_crtc);
ipu_dc_init_sync(ipu_crtc->dc, ipu_crtc->di,
mode->flags & DRM_MODE_FLAG_INTERLACE,
ipu_crtc->bus_format, mode->hdisplay);
ipu_di_init_sync_panel(ipu_crtc->di, &sig_cfg);
}
static const struct drm_crtc_helper_funcs ipu_helper_funcs = {
.dpms = ipu_crtc_dpms,
.mode_fixup = ipu_crtc_mode_fixup,
.mode_set = ipu_crtc_mode_set,
.mode_set = drm_helper_crtc_mode_set,
.mode_set_nofb = ipu_crtc_mode_set_nofb,
.prepare = ipu_crtc_prepare,
.commit = ipu_crtc_commit,
.atomic_check = ipu_crtc_atomic_check,
};
static int ipu_enable_vblank(struct drm_crtc *crtc)
{
struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
/*
* ->commit is done after ->mode_set in drm_crtc_helper_set_mode(),
* so waiting for vblank in drm_plane_helper_commit() will timeout.
* Check the state here to avoid the waiting.
*/
if (!ipu_crtc->enabled)
return -EINVAL;
enable_irq(ipu_crtc->irq);
return 0;
@ -496,8 +492,16 @@ static int ipu_crtc_init(struct ipu_crtc *ipu_crtc,
IPU_DP_FLOW_SYNC_FG,
drm_crtc_mask(&ipu_crtc->base),
DRM_PLANE_TYPE_OVERLAY);
if (IS_ERR(ipu_crtc->plane[1]))
if (IS_ERR(ipu_crtc->plane[1])) {
ipu_crtc->plane[1] = NULL;
} else {
ret = ipu_plane_get_resources(ipu_crtc->plane[1]);
if (ret) {
dev_err(ipu_crtc->dev, "getting plane 1 "
"resources failed with %d.\n", ret);
goto err_put_plane0_res;
}
}
}
ipu_crtc->irq = ipu_plane_irq(ipu_crtc->plane[0]);
@ -505,7 +509,7 @@ static int ipu_crtc_init(struct ipu_crtc *ipu_crtc,
"imx_drm", ipu_crtc);
if (ret < 0) {
dev_err(ipu_crtc->dev, "irq request failed with %d.\n", ret);
goto err_put_plane_res;
goto err_put_plane1_res;
}
/* Only enable IRQ when we actually need it to trigger work. */
disable_irq(ipu_crtc->irq);
@ -514,7 +518,10 @@ static int ipu_crtc_init(struct ipu_crtc *ipu_crtc,
return 0;
err_put_plane_res:
err_put_plane1_res:
if (ipu_crtc->plane[1])
ipu_plane_put_resources(ipu_crtc->plane[1]);
err_put_plane0_res:
ipu_plane_put_resources(ipu_crtc->plane[0]);
err_remove_crtc:
imx_drm_remove_crtc(ipu_crtc->imx_crtc);
@ -554,8 +561,10 @@ static void ipu_drm_unbind(struct device *dev, struct device *master,
imx_drm_remove_crtc(ipu_crtc->imx_crtc);
destroy_workqueue(ipu_crtc->flip_queue);
ipu_plane_put_resources(ipu_crtc->plane[0]);
ipu_put_resources(ipu_crtc);
if (ipu_crtc->plane[1])
ipu_plane_put_resources(ipu_crtc->plane[1]);
ipu_plane_put_resources(ipu_crtc->plane[0]);
}
static const struct component_ops ipu_crtc_ops = {

533
drivers/gpu/drm/imx/ipuv3-plane.c
View file

@ -16,6 +16,7 @@
#include <drm/drmP.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_plane_helper.h>
#include "video/imx-ipu-v3.h"
#include "ipuv3-plane.h"
@ -53,12 +54,15 @@ int ipu_plane_irq(struct ipu_plane *ipu_plane)
IPU_IRQ_EOF);
}
int ipu_plane_set_base(struct ipu_plane *ipu_plane, struct drm_framebuffer *fb,
int x, int y)
int ipu_plane_set_base(struct ipu_plane *ipu_plane, struct drm_framebuffer *fb)
{
struct drm_gem_cma_object *cma_obj[3];
unsigned long eba, ubo, vbo;
struct drm_gem_cma_object *cma_obj[3], *old_cma_obj[3];
struct drm_plane_state *state = ipu_plane->base.state;
struct drm_framebuffer *old_fb = state->fb;
unsigned long eba, ubo, vbo, old_eba, old_ubo, old_vbo;
int active, i;
int x = state->src_x >> 16;
int y = state->src_y >> 16;
for (i = 0; i < drm_format_num_planes(fb->pixel_format); i++) {
cma_obj[i] = drm_fb_cma_get_gem_obj(fb, i);
@ -68,6 +72,14 @@ int ipu_plane_set_base(struct ipu_plane *ipu_plane, struct drm_framebuffer *fb,
}
}
for (i = 0; i < drm_format_num_planes(old_fb->pixel_format); i++) {
old_cma_obj[i] = drm_fb_cma_get_gem_obj(old_fb, i);
if (!old_cma_obj[i]) {
DRM_DEBUG_KMS("plane %d entry is null.\n", i);
return -EFAULT;
}
}
eba = cma_obj[0]->paddr + fb->offsets[0] +
fb->pitches[0] * y + (fb->bits_per_pixel >> 3) * x;
@ -81,13 +93,11 @@ int ipu_plane_set_base(struct ipu_plane *ipu_plane, struct drm_framebuffer *fb,
return -EINVAL;
}
if (ipu_plane->enabled && fb->pitches[0] != ipu_plane->stride[0]) {
if (fb->pitches[0] != old_fb->pitches[0]) {
DRM_DEBUG_KMS("pitches must not change while plane is enabled.\n");
return -EINVAL;
}
ipu_plane->stride[0] = fb->pitches[0];
switch (fb->pixel_format) {
case DRM_FORMAT_YUV420:
case DRM_FORMAT_YVU420:
@ -104,6 +114,14 @@ int ipu_plane_set_base(struct ipu_plane *ipu_plane, struct drm_framebuffer *fb,
vbo = cma_obj[2]->paddr + fb->offsets[2] +
fb->pitches[2] * y / 2 + x / 2 - eba;
old_eba = old_cma_obj[0]->paddr + old_fb->offsets[0] +
old_fb->pitches[0] * y +
(old_fb->bits_per_pixel >> 3) * x;
old_ubo = old_cma_obj[1]->paddr + old_fb->offsets[1] +
old_fb->pitches[1] * y / 2 + x / 2 - old_eba;
old_vbo = old_cma_obj[2]->paddr + old_fb->offsets[2] +
old_fb->pitches[2] * y / 2 + x / 2 - old_eba;
if ((ubo & 0x7) || (vbo & 0x7)) {
DRM_DEBUG_KMS("U/V buffer offsets must be a multiple of 8.\n");
return -EINVAL;
@ -114,8 +132,7 @@ int ipu_plane_set_base(struct ipu_plane *ipu_plane, struct drm_framebuffer *fb,
return -EINVAL;
}
if (ipu_plane->enabled && ((ipu_plane->u_offset != ubo) ||
(ipu_plane->v_offset != vbo))) {
if (old_ubo != ubo || old_vbo != vbo) {
DRM_DEBUG_KMS("U/V buffer offsets must not change while plane is enabled.\n");
return -EINVAL;
}
@ -130,16 +147,11 @@ int ipu_plane_set_base(struct ipu_plane *ipu_plane, struct drm_framebuffer *fb,
return -EINVAL;
}
if (ipu_plane->enabled &&
(ipu_plane->stride[1] != fb->pitches[1])) {
if (old_fb->pitches[1] != fb->pitches[1]) {
DRM_DEBUG_KMS("U/V pitches must not change while plane is enabled.\n");
return -EINVAL;
}
ipu_plane->u_offset = ubo;
ipu_plane->v_offset = vbo;
ipu_plane->stride[1] = fb->pitches[1];
dev_dbg(ipu_plane->base.dev->dev,
"phys = %pad %pad %pad, x = %d, y = %d",
&cma_obj[0]->paddr, &cma_obj[1]->paddr,
@ -151,7 +163,104 @@ int ipu_plane_set_base(struct ipu_plane *ipu_plane, struct drm_framebuffer *fb,
break;
}
if (ipu_plane->enabled) {
active = ipu_idmac_get_current_buffer(ipu_plane->ipu_ch);
ipu_cpmem_set_buffer(ipu_plane->ipu_ch, !active, eba);
ipu_idmac_select_buffer(ipu_plane->ipu_ch, !active);
return 0;
}
static inline unsigned long
drm_plane_state_to_eba(struct drm_plane_state *state)
{
struct drm_framebuffer *fb = state->fb;
struct drm_gem_cma_object *cma_obj;
cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
BUG_ON(!cma_obj);
return cma_obj->paddr + fb->offsets[0] +
fb->pitches[0] * (state->src_y >> 16) +
(fb->bits_per_pixel >> 3) * (state->src_x >> 16);
}
static inline unsigned long
drm_plane_state_to_ubo(struct drm_plane_state *state)
{
struct drm_framebuffer *fb = state->fb;
struct drm_gem_cma_object *cma_obj;
unsigned long eba = drm_plane_state_to_eba(state);
cma_obj = drm_fb_cma_get_gem_obj(fb, 1);
BUG_ON(!cma_obj);
return cma_obj->paddr + fb->offsets[1] +
fb->pitches[1] * (state->src_y >> 16) / 2 +
(state->src_x >> 16) / 2 - eba;
}
static inline unsigned long
drm_plane_state_to_vbo(struct drm_plane_state *state)
{
struct drm_framebuffer *fb = state->fb;
struct drm_gem_cma_object *cma_obj;
unsigned long eba = drm_plane_state_to_eba(state);
cma_obj = drm_fb_cma_get_gem_obj(fb, 2);
BUG_ON(!cma_obj);
return cma_obj->paddr + fb->offsets[2] +
fb->pitches[2] * (state->src_y >> 16) / 2 +
(state->src_x >> 16) / 2 - eba;
}
static void ipu_plane_atomic_set_base(struct ipu_plane *ipu_plane,
struct drm_plane_state *old_state)
{
struct drm_plane *plane = &ipu_plane->base;
struct drm_plane_state *state = plane->state;
struct drm_framebuffer *fb = state->fb;
unsigned long eba, ubo, vbo;
int active;
eba = drm_plane_state_to_eba(state);
switch (fb->pixel_format) {
case DRM_FORMAT_YUV420:
case DRM_FORMAT_YVU420:
if (old_state->fb)
break;
/*
* Multiplanar formats have to meet the following restrictions:
* - The (up to) three plane addresses are EBA, EBA+UBO, EBA+VBO
* - EBA, UBO and VBO are a multiple of 8
* - UBO and VBO are unsigned and not larger than 0xfffff8
* - Only EBA may be changed while scanout is active
* - The strides of U and V planes must be identical.
*/
ubo = drm_plane_state_to_ubo(state);
vbo = drm_plane_state_to_vbo(state);
if (fb->pixel_format == DRM_FORMAT_YUV420)
ipu_cpmem_set_yuv_planar_full(ipu_plane->ipu_ch,
fb->pitches[1], ubo, vbo);
else
ipu_cpmem_set_yuv_planar_full(ipu_plane->ipu_ch,
fb->pitches[1], vbo, ubo);
dev_dbg(ipu_plane->base.dev->dev,
"phy = %lu %lu %lu, x = %d, y = %d", eba, ubo, vbo,
state->src_x >> 16, state->src_y >> 16);
break;
default:
dev_dbg(ipu_plane->base.dev->dev, "phys = %lu, x = %d, y = %d",
eba, state->src_x >> 16, state->src_y >> 16);
break;
}
if (old_state->fb) {
active = ipu_idmac_get_current_buffer(ipu_plane->ipu_ch);
ipu_cpmem_set_buffer(ipu_plane->ipu_ch, !active, eba);
ipu_idmac_select_buffer(ipu_plane->ipu_ch, !active);
@ -159,156 +268,6 @@ int ipu_plane_set_base(struct ipu_plane *ipu_plane, struct drm_framebuffer *fb,
ipu_cpmem_set_buffer(ipu_plane->ipu_ch, 0, eba);
ipu_cpmem_set_buffer(ipu_plane->ipu_ch, 1, eba);
}
/* cache offsets for subsequent pageflips */
ipu_plane->x = x;
ipu_plane->y = y;
return 0;
}
int ipu_plane_mode_set(struct ipu_plane *ipu_plane, struct drm_crtc *crtc,
struct drm_display_mode *mode,
struct drm_framebuffer *fb, int crtc_x, int crtc_y,
unsigned int crtc_w, unsigned int crtc_h,
uint32_t src_x, uint32_t src_y,
uint32_t src_w, uint32_t src_h, bool interlaced)
{
struct device *dev = ipu_plane->base.dev->dev;
int ret;
/* no scaling */
if (src_w != crtc_w || src_h != crtc_h)
return -EINVAL;
if (ipu_plane->base.type == DRM_PLANE_TYPE_PRIMARY) {
/* full plane doesn't support partial off screen */
if (crtc_x || crtc_y || crtc_w != mode->hdisplay ||
crtc_h != mode->vdisplay)
return -EINVAL;
/* full plane minimum width is 13 pixels */
if (crtc_w < 13)
return -EINVAL;
} else if (ipu_plane->base.type == DRM_PLANE_TYPE_OVERLAY) {
/* clip to crtc bounds */
if (crtc_x < 0) {
if (-crtc_x > crtc_w)
return -EINVAL;
src_x += -crtc_x;
src_w -= -crtc_x;
crtc_w -= -crtc_x;
crtc_x = 0;
}
if (crtc_y < 0) {
if (-crtc_y > crtc_h)
return -EINVAL;
src_y += -crtc_y;
src_h -= -crtc_y;
crtc_h -= -crtc_y;
crtc_y = 0;
}
if (crtc_x + crtc_w > mode->hdisplay) {
if (crtc_x > mode->hdisplay)
return -EINVAL;
crtc_w = mode->hdisplay - crtc_x;
src_w = crtc_w;
}
if (crtc_y + crtc_h > mode->vdisplay) {
if (crtc_y > mode->vdisplay)
return -EINVAL;
crtc_h = mode->vdisplay - crtc_y;
src_h = crtc_h;
}
} else
return -EINVAL;
if (crtc_h < 2)
return -EINVAL;
/*
* since we cannot touch active IDMAC channels, we do not support
* resizing the enabled plane or changing its format
*/
if (ipu_plane->enabled) {
if (src_w != ipu_plane->w || src_h != ipu_plane->h ||
fb->pixel_format != ipu_plane->base.fb->pixel_format)
return -EINVAL;
return ipu_plane_set_base(ipu_plane, fb, src_x, src_y);
}
switch (ipu_plane->dp_flow) {
case IPU_DP_FLOW_SYNC_BG:
ret = ipu_dp_setup_channel(ipu_plane->dp,
IPUV3_COLORSPACE_RGB,
IPUV3_COLORSPACE_RGB);
if (ret) {
dev_err(dev,
"initializing display processor failed with %d\n",
ret);
return ret;
}
ipu_dp_set_global_alpha(ipu_plane->dp, true, 0, true);
break;
case IPU_DP_FLOW_SYNC_FG:
ipu_dp_setup_channel(ipu_plane->dp,
ipu_drm_fourcc_to_colorspace(fb->pixel_format),
IPUV3_COLORSPACE_UNKNOWN);
ipu_dp_set_window_pos(ipu_plane->dp, crtc_x, crtc_y);
/* Enable local alpha on partial plane */
switch (fb->pixel_format) {
case DRM_FORMAT_ARGB1555:
case DRM_FORMAT_ABGR1555:
case DRM_FORMAT_RGBA5551:
case DRM_FORMAT_BGRA5551:
case DRM_FORMAT_ARGB4444:
case DRM_FORMAT_ARGB8888:
case DRM_FORMAT_ABGR8888:
case DRM_FORMAT_RGBA8888:
case DRM_FORMAT_BGRA8888:
ipu_dp_set_global_alpha(ipu_plane->dp, false, 0, false);
break;
default:
break;
}
}
ipu_dmfc_config_wait4eot(ipu_plane->dmfc, crtc_w);
ipu_cpmem_zero(ipu_plane->ipu_ch);
ipu_cpmem_set_resolution(ipu_plane->ipu_ch, src_w, src_h);
ret = ipu_cpmem_set_fmt(ipu_plane->ipu_ch, fb->pixel_format);
if (ret < 0) {
dev_err(dev, "unsupported pixel format 0x%08x\n",
fb->pixel_format);
return ret;
}
ipu_cpmem_set_high_priority(ipu_plane->ipu_ch);
ipu_idmac_set_double_buffer(ipu_plane->ipu_ch, 1);
ipu_cpmem_set_stride(ipu_plane->ipu_ch, fb->pitches[0]);
ret = ipu_plane_set_base(ipu_plane, fb, src_x, src_y);
if (ret < 0)
return ret;
if (interlaced)
ipu_cpmem_interlaced_scan(ipu_plane->ipu_ch, fb->pitches[0]);
if (fb->pixel_format == DRM_FORMAT_YUV420) {
ipu_cpmem_set_yuv_planar_full(ipu_plane->ipu_ch,
ipu_plane->stride[1],
ipu_plane->u_offset,
ipu_plane->v_offset);
} else if (fb->pixel_format == DRM_FORMAT_YVU420) {
ipu_cpmem_set_yuv_planar_full(ipu_plane->ipu_ch,
ipu_plane->stride[1],
ipu_plane->v_offset,
ipu_plane->u_offset);
}
ipu_plane->w = src_w;
ipu_plane->h = src_h;
return 0;
}
void ipu_plane_put_resources(struct ipu_plane *ipu_plane)
@ -355,7 +314,7 @@ int ipu_plane_get_resources(struct ipu_plane *ipu_plane)
return ret;
}
void ipu_plane_enable(struct ipu_plane *ipu_plane)
static void ipu_plane_enable(struct ipu_plane *ipu_plane)
{
if (ipu_plane->dp)
ipu_dp_enable(ipu_plane->ipu);
@ -363,14 +322,10 @@ void ipu_plane_enable(struct ipu_plane *ipu_plane)
ipu_idmac_enable_channel(ipu_plane->ipu_ch);
if (ipu_plane->dp)
ipu_dp_enable_channel(ipu_plane->dp);
ipu_plane->enabled = true;
}
void ipu_plane_disable(struct ipu_plane *ipu_plane)
static void ipu_plane_disable(struct ipu_plane *ipu_plane)
{
ipu_plane->enabled = false;
ipu_idmac_wait_busy(ipu_plane->ipu_ch, 50);
if (ipu_plane->dp)
@ -381,55 +336,13 @@ void ipu_plane_disable(struct ipu_plane *ipu_plane)
ipu_dp_disable(ipu_plane->ipu);
}
/*
* drm_plane API
*/
static int ipu_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
struct drm_framebuffer *fb, int crtc_x, int crtc_y,
unsigned int crtc_w, unsigned int crtc_h,
uint32_t src_x, uint32_t src_y,
uint32_t src_w, uint32_t src_h)
{
struct ipu_plane *ipu_plane = to_ipu_plane(plane);
int ret = 0;
DRM_DEBUG_KMS("plane - %p\n", plane);
if (!ipu_plane->enabled)
ret = ipu_plane_get_resources(ipu_plane);
if (ret < 0)
return ret;
ret = ipu_plane_mode_set(ipu_plane, crtc, &crtc->hwmode, fb,
crtc_x, crtc_y, crtc_w, crtc_h,
src_x >> 16, src_y >> 16, src_w >> 16, src_h >> 16,
false);
if (ret < 0) {
ipu_plane_put_resources(ipu_plane);
return ret;
}
if (crtc != plane->crtc)
dev_dbg(plane->dev->dev, "crtc change: %p -> %p\n",
plane->crtc, crtc);
if (!ipu_plane->enabled)
ipu_plane_enable(ipu_plane);
return 0;
}
static int ipu_disable_plane(struct drm_plane *plane)
{
struct ipu_plane *ipu_plane = to_ipu_plane(plane);
DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
if (ipu_plane->enabled)
ipu_plane_disable(ipu_plane);
ipu_plane_put_resources(ipu_plane);
ipu_plane_disable(ipu_plane);
return 0;
}
@ -446,11 +359,195 @@ static void ipu_plane_destroy(struct drm_plane *plane)
}
static const struct drm_plane_funcs ipu_plane_funcs = {
.update_plane = ipu_update_plane,
.disable_plane = ipu_disable_plane,
.update_plane = drm_plane_helper_update,
.disable_plane = drm_plane_helper_disable,
.destroy = ipu_plane_destroy,
};
static int ipu_plane_atomic_check(struct drm_plane *plane,
struct drm_plane_state *state)
{
struct drm_plane_state *old_state = plane->state;
struct drm_crtc_state *crtc_state;
struct device *dev = plane->dev->dev;
struct drm_framebuffer *fb = state->fb;
struct drm_framebuffer *old_fb = old_state->fb;
unsigned long eba, ubo, vbo, old_ubo, old_vbo;
/* Ok to disable */
if (!fb)
return old_fb ? 0 : -EINVAL;
/* CRTC should be enabled */
if (!state->crtc->enabled)
return -EINVAL;
/* no scaling */
if (state->src_w >> 16 != state->crtc_w ||
state->src_h >> 16 != state->crtc_h)
return -EINVAL;
crtc_state = state->crtc->state;
switch (plane->type) {
case DRM_PLANE_TYPE_PRIMARY:
/* full plane doesn't support partial off screen */
if (state->crtc_x || state->crtc_y ||
state->crtc_w != crtc_state->adjusted_mode.hdisplay ||
state->crtc_h != crtc_state->adjusted_mode.vdisplay)
return -EINVAL;
/* full plane minimum width is 13 pixels */
if (state->crtc_w < 13)
return -EINVAL;
break;
case DRM_PLANE_TYPE_OVERLAY:
if (state->crtc_x < 0 || state->crtc_y < 0)
return -EINVAL;
if (state->crtc_x + state->crtc_w >
crtc_state->adjusted_mode.hdisplay)
return -EINVAL;
if (state->crtc_y + state->crtc_h >
crtc_state->adjusted_mode.vdisplay)
return -EINVAL;
break;
default:
dev_warn(dev, "Unsupported plane type\n");
return -EINVAL;
}
if (state->crtc_h < 2)
return -EINVAL;
/*
* since we cannot touch active IDMAC channels, we do not support
* resizing the enabled plane or changing its format
*/
if (old_fb && (state->src_w != old_state->src_w ||
state->src_h != old_state->src_h ||
fb->pixel_format != old_fb->pixel_format))
return -EINVAL;
eba = drm_plane_state_to_eba(state);
if (eba & 0x7)
return -EINVAL;
if (fb->pitches[0] < 1 || fb->pitches[0] > 16384)
return -EINVAL;
if (old_fb && fb->pitches[0] != old_fb->pitches[0])
return -EINVAL;
switch (fb->pixel_format) {
case DRM_FORMAT_YUV420:
case DRM_FORMAT_YVU420:
/*
* Multiplanar formats have to meet the following restrictions:
* - The (up to) three plane addresses are EBA, EBA+UBO, EBA+VBO
* - EBA, UBO and VBO are a multiple of 8
* - UBO and VBO are unsigned and not larger than 0xfffff8
* - Only EBA may be changed while scanout is active
* - The strides of U and V planes must be identical.
*/
ubo = drm_plane_state_to_ubo(state);
vbo = drm_plane_state_to_vbo(state);
if ((ubo & 0x7) || (vbo & 0x7))
return -EINVAL;
if ((ubo > 0xfffff8) || (vbo > 0xfffff8))
return -EINVAL;
if (old_fb) {
old_ubo = drm_plane_state_to_ubo(old_state);
old_vbo = drm_plane_state_to_vbo(old_state);
if (ubo != old_ubo || vbo != old_vbo)
return -EINVAL;
}
if (fb->pitches[1] != fb->pitches[2])
return -EINVAL;
if (fb->pitches[1] < 1 || fb->pitches[1] > 16384)
return -EINVAL;
if (old_fb && old_fb->pitches[1] != fb->pitches[1])
return -EINVAL;
}
return 0;
}
static void ipu_plane_atomic_disable(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
ipu_disable_plane(plane);
}
static void ipu_plane_atomic_update(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
struct ipu_plane *ipu_plane = to_ipu_plane(plane);
struct drm_plane_state *state = plane->state;
enum ipu_color_space ics;
if (old_state->fb) {
ipu_plane_atomic_set_base(ipu_plane, old_state);
return;
}
switch (ipu_plane->dp_flow) {
case IPU_DP_FLOW_SYNC_BG:
ipu_dp_setup_channel(ipu_plane->dp,
IPUV3_COLORSPACE_RGB,
IPUV3_COLORSPACE_RGB);
ipu_dp_set_global_alpha(ipu_plane->dp, true, 0, true);
break;
case IPU_DP_FLOW_SYNC_FG:
ics = ipu_drm_fourcc_to_colorspace(state->fb->pixel_format);
ipu_dp_setup_channel(ipu_plane->dp, ics,
IPUV3_COLORSPACE_UNKNOWN);
ipu_dp_set_window_pos(ipu_plane->dp, state->crtc_x,
state->crtc_y);
/* Enable local alpha on partial plane */
switch (state->fb->pixel_format) {
case DRM_FORMAT_ARGB1555:
case DRM_FORMAT_ABGR1555:
case DRM_FORMAT_RGBA5551:
case DRM_FORMAT_BGRA5551:
case DRM_FORMAT_ARGB4444:
case DRM_FORMAT_ARGB8888:
case DRM_FORMAT_ABGR8888:
case DRM_FORMAT_RGBA8888:
case DRM_FORMAT_BGRA8888:
ipu_dp_set_global_alpha(ipu_plane->dp, false, 0, false);
break;
default:
break;
}
}
ipu_dmfc_config_wait4eot(ipu_plane->dmfc, state->crtc_w);
ipu_cpmem_zero(ipu_plane->ipu_ch);
ipu_cpmem_set_resolution(ipu_plane->ipu_ch, state->src_w >> 16,
state->src_h >> 16);
ipu_cpmem_set_fmt(ipu_plane->ipu_ch, state->fb->pixel_format);
ipu_cpmem_set_high_priority(ipu_plane->ipu_ch);
ipu_idmac_set_double_buffer(ipu_plane->ipu_ch, 1);
ipu_cpmem_set_stride(ipu_plane->ipu_ch, state->fb->pitches[0]);
ipu_plane_atomic_set_base(ipu_plane, old_state);
ipu_plane_enable(ipu_plane);
}
static const struct drm_plane_helper_funcs ipu_plane_helper_funcs = {
.atomic_check = ipu_plane_atomic_check,
.atomic_disable = ipu_plane_atomic_disable,
.atomic_update = ipu_plane_atomic_update,
};
struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu,
int dma, int dp, unsigned int possible_crtcs,
enum drm_plane_type type)
@ -481,5 +578,7 @@ struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu,
return ERR_PTR(ret);
}
drm_plane_helper_add(&ipu_plane->base, &ipu_plane_helper_funcs);
return ipu_plane;
}

16
drivers/gpu/drm/imx/ipuv3-plane.h
View file

@ -23,17 +23,6 @@ struct ipu_plane {
int dma;
int dp_flow;
int x;
int y;
int w;
int h;
unsigned int u_offset;
unsigned int v_offset;
unsigned int stride[2];
bool enabled;
};
struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu,
@ -48,10 +37,7 @@ int ipu_plane_mode_set(struct ipu_plane *plane, struct drm_crtc *crtc,
uint32_t src_x, uint32_t src_y, uint32_t src_w,
uint32_t src_h, bool interlaced);
void ipu_plane_enable(struct ipu_plane *plane);
void ipu_plane_disable(struct ipu_plane *plane);
int ipu_plane_set_base(struct ipu_plane *plane, struct drm_framebuffer *fb,
int x, int y);
int ipu_plane_set_base(struct ipu_plane *plane, struct drm_framebuffer *fb);
int ipu_plane_get_resources(struct ipu_plane *plane);
void ipu_plane_put_resources(struct ipu_plane *plane);

5
drivers/gpu/ipu-v3/ipu-dc.c
View file

@ -178,10 +178,7 @@ int ipu_dc_init_sync(struct ipu_dc *dc, struct ipu_di *di, bool interlaced,
dc->di = ipu_di_get_num(di);
map = ipu_bus_format_to_map(bus_format);
if (map < 0) {
dev_dbg(priv->dev, "IPU_DISP: No MAP\n");
return map;
}
BUG_ON(map < 0);
/*
* In interlaced mode we need more counters to create the asymmetric

3
drivers/gpu/ipu-v3/ipu-di.c
View file

@ -572,9 +572,6 @@ int ipu_di_init_sync_panel(struct ipu_di *di, struct ipu_di_signal_cfg *sig)
dev_dbg(di->ipu->dev, "disp %d: panel size = %d x %d\n",
di->id, sig->mode.hactive, sig->mode.vactive);
if ((sig->mode.vsync_len == 0) || (sig->mode.hsync_len == 0))
return -EINVAL;
dev_dbg(di->ipu->dev, "Clocks: IPU %luHz DI %luHz Needed %luHz\n",
clk_get_rate(di->clk_ipu),
clk_get_rate(di->clk_di),