[PATCH 34/39] drm: renesas: shmobile: Atomic conversion part 1

From: Geert Uytterhoeven
Date: Thu Jun 22 2023 - 05:32:22 EST

Implement atomic mode setting for both the primary and overlay planes.
This involves:
- Moving the primary plane handling code from CRTC mode setting to
plane handling shared by primary and overlay planes,
- Adding basic CRTC and mode config atomic mode setting ops, which
don't do much yet.

Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
.../gpu/drm/renesas/shmobile/shmob_drm_crtc.c | 128 +++------
.../gpu/drm/renesas/shmobile/shmob_drm_crtc.h | 3 -
.../gpu/drm/renesas/shmobile/shmob_drm_drv.c | 4 +-
.../gpu/drm/renesas/shmobile/shmob_drm_kms.c | 13 +-
.../drm/renesas/shmobile/shmob_drm_plane.c | 260 ++++++++++++------
.../drm/renesas/shmobile/shmob_drm_plane.h | 1 -
6 files changed, 222 insertions(+), 187 deletions(-)

diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c b/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c
index ef327da39bca415a..ea19e802792e24a4 100644
--- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c
+++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c
@@ -11,6 +11,9 @@
#include <linux/media-bus-format.h>
#include <linux/pm_runtime.h>

+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_atomic_state_helper.h>
+#include <drm/drm_atomic_uapi.h>
#include <drm/drm_crtc.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_dma_helper.h>
@@ -188,27 +191,21 @@ static void shmob_drm_crtc_start(struct shmob_drm_crtc *scrtc)
struct drm_crtc *crtc = &scrtc->base;
struct shmob_drm_device *sdev = to_shmob_device(crtc->dev);
const struct shmob_drm_interface_data *idata = &sdev->pdata->iface;
- const struct shmob_drm_format_info *format;
- struct drm_device *dev = &sdev->ddev;
- struct drm_plane *plane;
+ struct device *dev = sdev->dev;
u32 value;
int ret;

if (scrtc->started)
return;

- format = shmob_drm_format_info(crtc->primary->fb->format->format);
- if (WARN_ON(format == NULL))
- return;
-
- ret = pm_runtime_resume_and_get(sdev->dev);
+ ret = pm_runtime_resume_and_get(dev);
if (ret)
return;

/* Enable clocks before accessing the hardware. */
ret = shmob_drm_clk_on(sdev);
if (ret < 0) {
- pm_runtime_put(sdev->dev);
+ pm_runtime_put(dev);
return;
}

@@ -245,23 +242,8 @@ static void shmob_drm_crtc_start(struct shmob_drm_crtc *scrtc)
/* Setup geometry, format, frame buffer memory and operation mode. */
shmob_drm_crtc_setup_geometry(scrtc);

- /* TODO: Handle YUV colorspaces. Hardcode REC709 for now. */
- lcdc_write(sdev, LDDFR, format->lddfr | LDDFR_CF1);
- lcdc_write(sdev, LDMLSR, scrtc->line_size);
- lcdc_write(sdev, LDSA1R, scrtc->dma[0]);
- if (shmob_drm_format_is_yuv(format))
- lcdc_write(sdev, LDSA2R, scrtc->dma[1]);
lcdc_write(sdev, LDSM1R, 0);

- /* Word and long word swap. */
- lcdc_write(sdev, LDDDSR, format->ldddsr);
-
- /* Setup planes. */
- drm_for_each_legacy_plane(plane, dev) {
- if (plane->crtc == crtc)
- shmob_drm_plane_setup(plane);
- }
-
/* Enable the display output. */
lcdc_write(sdev, LDCNT1R, LDCNT1R_DE);

@@ -369,42 +351,6 @@ void shmob_drm_crtc_resume(struct shmob_drm_crtc *scrtc)
shmob_drm_crtc_start(scrtc);
}

-static void shmob_drm_crtc_compute_base(struct shmob_drm_crtc *scrtc,
- int x, int y)
-{
- struct drm_crtc *crtc = &scrtc->base;
- struct drm_framebuffer *fb = crtc->primary->fb;
- struct drm_gem_dma_object *gem;
- unsigned int bpp;
-
- bpp = shmob_drm_format_is_yuv(scrtc->format) ? 8 : scrtc->format->bpp;
- gem = drm_fb_dma_get_gem_obj(fb, 0);
- scrtc->dma[0] = gem->dma_addr + fb->offsets[0]
- + y * fb->pitches[0] + x * bpp / 8;
-
- if (shmob_drm_format_is_yuv(scrtc->format)) {
- bpp = scrtc->format->bpp - 8;
- gem = drm_fb_dma_get_gem_obj(fb, 1);
- scrtc->dma[1] = gem->dma_addr + fb->offsets[1]
- + y / (bpp == 4 ? 2 : 1) * fb->pitches[1]
- + x * (bpp == 16 ? 2 : 1);
- }
-}
-
-static void shmob_drm_crtc_update_base(struct shmob_drm_crtc *scrtc)
-{
- struct drm_crtc *crtc = &scrtc->base;
- struct shmob_drm_device *sdev = to_shmob_device(crtc->dev);
-
- shmob_drm_crtc_compute_base(scrtc, crtc->x, crtc->y);
-
- lcdc_write_mirror(sdev, LDSA1R, scrtc->dma[0]);
- if (shmob_drm_format_is_yuv(scrtc->format))
- lcdc_write_mirror(sdev, LDSA2R, scrtc->dma[1]);
-
- lcdc_write(sdev, LDRCNTR, lcdc_read(sdev, LDRCNTR) ^ LDRCNTR_MRS);
-}
-
static inline struct shmob_drm_crtc *to_shmob_crtc(struct drm_crtc *crtc)
{
return container_of(crtc, struct shmob_drm_crtc, base);
@@ -430,50 +376,45 @@ static void shmob_drm_crtc_mode_prepare(struct drm_crtc *crtc)
shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
}

-static int shmob_drm_crtc_mode_set(struct drm_crtc *crtc,
- struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode,
- int x, int y,
- struct drm_framebuffer *old_fb)
+static void shmob_drm_crtc_mode_commit(struct drm_crtc *crtc)
{
- struct shmob_drm_device *sdev = to_shmob_device(crtc->dev);
- struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
- const struct shmob_drm_format_info *format;
-
- format = shmob_drm_format_info(crtc->primary->fb->format->format);
- if (format == NULL) {
- dev_dbg(sdev->dev, "mode_set: unsupported format %p4cc\n",
- &crtc->primary->fb->format->format);
- return -EINVAL;
- }
-
- scrtc->format = format;
- scrtc->line_size = crtc->primary->fb->pitches[0];
-
- shmob_drm_crtc_compute_base(scrtc, x, y);
+ shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
+}

+static int shmob_drm_crtc_atomic_check(struct drm_crtc *crtc,
+ struct drm_atomic_state *state)
+{
return 0;
}

-static void shmob_drm_crtc_mode_commit(struct drm_crtc *crtc)
+static void shmob_drm_crtc_atomic_begin(struct drm_crtc *crtc,
+ struct drm_atomic_state *state)
{
- shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
}

-static int shmob_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
- struct drm_framebuffer *old_fb)
+static void shmob_drm_crtc_atomic_flush(struct drm_crtc *crtc,
+ struct drm_atomic_state *state)
{
- shmob_drm_crtc_update_base(to_shmob_crtc(crtc));
+ struct drm_pending_vblank_event *event;
+ struct drm_device *dev = crtc->dev;
+ unsigned long flags;

- return 0;
+ if (crtc->state->event) {
+ spin_lock_irqsave(&dev->event_lock, flags);
+ event = crtc->state->event;
+ crtc->state->event = NULL;
+ drm_crtc_send_vblank_event(crtc, event);
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ }
}

static const struct drm_crtc_helper_funcs crtc_helper_funcs = {
.dpms = shmob_drm_crtc_dpms,
.prepare = shmob_drm_crtc_mode_prepare,
.commit = shmob_drm_crtc_mode_commit,
- .mode_set = shmob_drm_crtc_mode_set,
- .mode_set_base = shmob_drm_crtc_mode_set_base,
+ .atomic_check = shmob_drm_crtc_atomic_check,
+ .atomic_begin = shmob_drm_crtc_atomic_begin,
+ .atomic_flush = shmob_drm_crtc_atomic_flush,
};

static int shmob_drm_crtc_page_flip(struct drm_crtc *crtc,
@@ -493,8 +434,7 @@ static int shmob_drm_crtc_page_flip(struct drm_crtc *crtc,
}
spin_unlock_irqrestore(&dev->event_lock, flags);

- crtc->primary->fb = fb;
- shmob_drm_crtc_update_base(scrtc);
+ drm_atomic_set_fb_for_plane(crtc->primary->state, fb);

if (event) {
event->pipe = 0;
@@ -541,9 +481,12 @@ static void shmob_drm_disable_vblank(struct drm_crtc *crtc)
}

static const struct drm_crtc_funcs crtc_funcs = {
+ .reset = drm_atomic_helper_crtc_reset,
.destroy = drm_crtc_cleanup,
- .set_config = drm_crtc_helper_set_config,
+ .set_config = drm_atomic_helper_set_config,
.page_flip = shmob_drm_crtc_page_flip,
+ .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
.enable_vblank = shmob_drm_enable_vblank,
.disable_vblank = shmob_drm_disable_vblank,
};
@@ -679,8 +622,11 @@ static void shmob_drm_connector_destroy(struct drm_connector *connector)

static const struct drm_connector_funcs connector_funcs = {
.dpms = drm_helper_connector_dpms,
+ .reset = drm_atomic_helper_connector_reset,
.fill_modes = drm_helper_probe_single_connector_modes,
.destroy = shmob_drm_connector_destroy,
+ .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};

static struct drm_connector *
diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.h b/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.h
index b9863e026e8a9b83..fe41e42d6cc55275 100644
--- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.h
+++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.h
@@ -29,9 +29,6 @@ struct shmob_drm_crtc {
wait_queue_head_t flip_wait;
int dpms;

- const struct shmob_drm_format_info *format;
- unsigned long dma[2];
- unsigned int line_size;
bool started;
};

diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c b/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c
index 636f1888b815579b..9107f84224602683 100644
--- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c
+++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c
@@ -16,7 +16,7 @@
#include <linux/pm_runtime.h>
#include <linux/slab.h>

-#include <drm/drm_crtc_helper.h>
+#include <drm/drm_atomic_helper.h>
#include <drm/drm_drv.h>
#include <drm/drm_fbdev_generic.h>
#include <drm/drm_gem_dma_helper.h>
@@ -146,7 +146,7 @@ static int shmob_drm_remove(struct platform_device *pdev)
struct drm_device *ddev = &sdev->ddev;

drm_dev_unregister(ddev);
- drm_helper_force_disable_all(ddev);
+ drm_atomic_helper_shutdown(ddev);
drm_kms_helper_poll_fini(ddev);
return 0;
}
diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.c b/drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.c
index 20316907030b2789..4202ab00fb0cf487 100644
--- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.c
+++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.c
@@ -7,6 +7,7 @@
* Laurent Pinchart (laurent.pinchart@xxxxxxxxxxxxxxxx)
*/

+#include <drm/drm_atomic_helper.h>
#include <drm/drm_crtc.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fourcc.h>
@@ -17,6 +18,7 @@
#include "shmob_drm_crtc.h"
#include "shmob_drm_drv.h"
#include "shmob_drm_kms.h"
+#include "shmob_drm_plane.h"
#include "shmob_drm_regs.h"

/* -----------------------------------------------------------------------------
@@ -147,13 +149,16 @@ shmob_drm_fb_create(struct drm_device *dev, struct drm_file *file_priv,

static const struct drm_mode_config_funcs shmob_drm_mode_config_funcs = {
.fb_create = shmob_drm_fb_create,
+ .atomic_check = drm_atomic_helper_check,
+ .atomic_commit = drm_atomic_helper_commit,
};

int shmob_drm_modeset_init(struct shmob_drm_device *sdev)
{
+ struct drm_device *dev = &sdev->ddev;
int ret;

- ret = drmm_mode_config_init(&sdev->ddev);
+ ret = drmm_mode_config_init(dev);
if (ret)
return ret;

@@ -169,7 +174,9 @@ int shmob_drm_modeset_init(struct shmob_drm_device *sdev)
if (ret < 0)
return ret;

- drm_kms_helper_poll_init(&sdev->ddev);
+ drm_mode_config_reset(dev);
+
+ drm_kms_helper_poll_init(dev);

sdev->ddev.mode_config.min_width = 0;
sdev->ddev.mode_config.min_height = 0;
@@ -177,7 +184,5 @@ int shmob_drm_modeset_init(struct shmob_drm_device *sdev)
sdev->ddev.mode_config.max_height = 4095;
sdev->ddev.mode_config.funcs = &shmob_drm_mode_config_funcs;

- drm_helper_disable_unused_functions(&sdev->ddev);
-
return 0;
}
diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.c b/drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.c
index e300e5c0de70a9b1..2a77e93c054bf2e8 100644
--- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.c
+++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.c
@@ -7,6 +7,8 @@
* Laurent Pinchart (laurent.pinchart@xxxxxxxxxxxxxxxx)
*/

+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
#include <drm/drm_crtc.h>
#include <drm/drm_fb_dma_helper.h>
#include <drm/drm_fourcc.h>
@@ -22,17 +24,13 @@
struct shmob_drm_plane {
struct drm_plane base;
unsigned int index;
- unsigned int alpha;
+};
+
+struct shmob_drm_plane_state {
+ struct drm_plane_state base;

const struct shmob_drm_format_info *format;
- unsigned long dma[2];
-
- unsigned int src_x;
- unsigned int src_y;
- unsigned int crtc_x;
- unsigned int crtc_y;
- unsigned int crtc_w;
- unsigned int crtc_h;
+ u32 dma[2];
};

static inline struct shmob_drm_plane *to_shmob_plane(struct drm_plane *plane)
@@ -40,37 +38,66 @@ static inline struct shmob_drm_plane *to_shmob_plane(struct drm_plane *plane)
return container_of(plane, struct shmob_drm_plane, base);
}

-static void shmob_drm_plane_compute_base(struct shmob_drm_plane *splane,
- struct drm_framebuffer *fb,
- int x, int y)
+static inline struct shmob_drm_plane_state *to_shmob_plane_state(struct drm_plane_state *state)
+{
+ return container_of(state, struct shmob_drm_plane_state, base);
+}
+
+static void shmob_drm_plane_compute_base(struct shmob_drm_plane_state *sstate)
{
+ struct drm_framebuffer *fb = sstate->base.fb;
+ unsigned int x = sstate->base.src_x >> 16;
+ unsigned int y = sstate->base.src_y >> 16;
struct drm_gem_dma_object *gem;
unsigned int bpp;

- bpp = shmob_drm_format_is_yuv(splane->format) ? 8 : splane->format->bpp;
+ bpp = shmob_drm_format_is_yuv(sstate->format) ? 8 : sstate->format->bpp;
gem = drm_fb_dma_get_gem_obj(fb, 0);
- splane->dma[0] = gem->dma_addr + fb->offsets[0]
+ sstate->dma[0] = gem->dma_addr + fb->offsets[0]
+ y * fb->pitches[0] + x * bpp / 8;

- if (shmob_drm_format_is_yuv(splane->format)) {
- bpp = splane->format->bpp - 8;
+ if (shmob_drm_format_is_yuv(sstate->format)) {
+ bpp = sstate->format->bpp - 8;
gem = drm_fb_dma_get_gem_obj(fb, 1);
- splane->dma[1] = gem->dma_addr + fb->offsets[1]
+ sstate->dma[1] = gem->dma_addr + fb->offsets[1]
+ y / (bpp == 4 ? 2 : 1) * fb->pitches[1]
+ x * (bpp == 16 ? 2 : 1);
}
}

-static void __shmob_drm_plane_setup(struct shmob_drm_plane *splane,
- struct drm_framebuffer *fb)
+static void shmob_drm_primary_plane_setup(struct shmob_drm_plane *splane,
+ struct drm_plane_state *state)
{
+ struct shmob_drm_plane_state *sstate = to_shmob_plane_state(state);
+ struct shmob_drm_device *sdev = to_shmob_device(splane->base.dev);
+ struct drm_framebuffer *fb = state->fb;
+
+ /* TODO: Handle YUV colorspaces. Hardcode REC709 for now. */
+ lcdc_write(sdev, LDDFR, sstate->format->lddfr | LDDFR_CF1);
+ lcdc_write(sdev, LDMLSR, fb->pitches[0]);
+
+ /* Word and long word swap. */
+ lcdc_write(sdev, LDDDSR, sstate->format->ldddsr);
+
+ lcdc_write_mirror(sdev, LDSA1R, sstate->dma[0]);
+ if (shmob_drm_format_is_yuv(sstate->format))
+ lcdc_write_mirror(sdev, LDSA2R, sstate->dma[1]);
+
+ lcdc_write(sdev, LDRCNTR, lcdc_read(sdev, LDRCNTR) ^ LDRCNTR_MRS);
+}
+
+static void shmob_drm_overlay_plane_setup(struct shmob_drm_plane *splane,
+ struct drm_plane_state *state)
+{
+ struct shmob_drm_plane_state *sstate = to_shmob_plane_state(state);
struct shmob_drm_device *sdev = to_shmob_device(splane->base.dev);
unsigned int ovl_idx = splane->index - 1;
+ struct drm_framebuffer *fb = state->fb;
u32 format;

/* TODO: Support ROP3 mode */
- format = LDBBSIFR_EN | (splane->alpha << LDBBSIFR_LAY_SHIFT) |
- splane->format->ldbbsifr;
+ format = LDBBSIFR_EN | ((state->alpha >> 8) << LDBBSIFR_LAY_SHIFT) |
+ sstate->format->ldbbsifr;

#define plane_reg_dump(sdev, ovl_idx, reg) \
dev_dbg(sdev->ddev.dev, "%s(%u): %s 0x%08x 0x%08x\n", __func__, \
@@ -92,22 +119,19 @@ static void __shmob_drm_plane_setup(struct shmob_drm_plane *splane,
lcdc_write(sdev, LDBnBSIFR(ovl_idx), format);

lcdc_write(sdev, LDBnBSSZR(ovl_idx),
- (splane->crtc_h << LDBBSSZR_BVSS_SHIFT) |
- (splane->crtc_w << LDBBSSZR_BHSS_SHIFT));
+ (state->crtc_h << LDBBSSZR_BVSS_SHIFT) |
+ (state->crtc_w << LDBBSSZR_BHSS_SHIFT));
lcdc_write(sdev, LDBnBLOCR(ovl_idx),
- (splane->crtc_y << LDBBLOCR_CVLC_SHIFT) |
- (splane->crtc_x << LDBBLOCR_CHLC_SHIFT));
+ (state->crtc_y << LDBBLOCR_CVLC_SHIFT) |
+ (state->crtc_x << LDBBLOCR_CHLC_SHIFT));
lcdc_write(sdev, LDBnBSMWR(ovl_idx),
fb->pitches[0] << LDBBSMWR_BSMW_SHIFT);

- shmob_drm_plane_compute_base(splane, fb, splane->src_x, splane->src_y);
-
- lcdc_write(sdev, LDBnBSAYR(ovl_idx), splane->dma[0]);
- if (shmob_drm_format_is_yuv(splane->format))
- lcdc_write(sdev, LDBnBSACR(ovl_idx), splane->dma[1]);
+ lcdc_write(sdev, LDBnBSAYR(ovl_idx), sstate->dma[0]);
+ if (shmob_drm_format_is_yuv(sstate->format))
+ lcdc_write(sdev, LDBnBSACR(ovl_idx), sstate->dma[1]);

- lcdc_write(sdev, LDBCR,
- LDBCR_UPF(ovl_idx) | LDBCR_UPD(ovl_idx));
+ lcdc_write(sdev, LDBCR, LDBCR_UPF(ovl_idx) | LDBCR_UPD(ovl_idx));
dev_dbg(sdev->ddev.dev, "%s(%u): %s 0x%08x\n", __func__, ovl_idx,
"LDBCR", lcdc_read(sdev, LDBCR));

@@ -119,77 +143,144 @@ static void __shmob_drm_plane_setup(struct shmob_drm_plane *splane,
plane_reg_dump(sdev, ovl_idx, LDBnBSACR);
}

-void shmob_drm_plane_setup(struct drm_plane *plane)
+static int shmob_drm_plane_atomic_check(struct drm_plane *plane,
+ struct drm_atomic_state *state)
{
- struct shmob_drm_plane *splane = to_shmob_plane(plane);
-
- if (plane->fb == NULL)
- return;
+ struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, plane);
+ struct shmob_drm_plane_state *sstate = to_shmob_plane_state(new_plane_state);
+ struct drm_crtc_state *crtc_state;
+ bool is_primary = plane->type == DRM_PLANE_TYPE_PRIMARY;
+ int ret;
+
+ if (!new_plane_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.
+ */
+ new_plane_state->visible = false;
+ sstate->format = NULL;
+ return 0;
+ }

- __shmob_drm_plane_setup(splane, plane->fb);
-}
+ crtc_state = drm_atomic_get_crtc_state(state, new_plane_state->crtc);
+ if (IS_ERR(crtc_state))
+ return PTR_ERR(crtc_state);

-static int
-shmob_drm_plane_update(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 drm_modeset_acquire_ctx *ctx)
-{
- struct shmob_drm_device *sdev = to_shmob_device(plane->dev);
- struct shmob_drm_plane *splane = to_shmob_plane(plane);
- const struct shmob_drm_format_info *format;
+ ret = drm_atomic_helper_check_plane_state(new_plane_state, crtc_state,
+ DRM_PLANE_NO_SCALING,
+ DRM_PLANE_NO_SCALING,
+ !is_primary, true);
+ if (ret < 0)
+ return ret;

- format = shmob_drm_format_info(fb->format->format);
- if (format == NULL) {
- dev_dbg(sdev->dev, "update_plane: unsupported format %p4cc\n",
- &fb->format->format);
- return -EINVAL;
+ if (!new_plane_state->visible) {
+ sstate->format = NULL;
+ return 0;
}

- if (src_w >> 16 != crtc_w || src_h >> 16 != crtc_h) {
- dev_dbg(sdev->dev, "%s: scaling not supported\n", __func__);
+ sstate->format = shmob_drm_format_info(new_plane_state->fb->format->format);
+ if (!sstate->format) {
+ dev_dbg(plane->dev->dev,
+ "plane_atomic_check: unsupported format %p4cc\n",
+ &new_plane_state->fb->format->format);
return -EINVAL;
}

- splane->format = format;
+ shmob_drm_plane_compute_base(sstate);

- splane->src_x = src_x >> 16;
- splane->src_y = src_y >> 16;
- splane->crtc_x = crtc_x;
- splane->crtc_y = crtc_y;
- splane->crtc_w = crtc_w;
- splane->crtc_h = crtc_h;
-
- __shmob_drm_plane_setup(splane, fb);
return 0;
}

-static int shmob_drm_plane_disable(struct drm_plane *plane,
- struct drm_modeset_acquire_ctx *ctx)
+static void shmob_drm_plane_atomic_update(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 shmob_drm_plane *splane = to_shmob_plane(plane);
+
+ if (!new_plane_state->visible)
+ return;
+
+ if (plane->type == DRM_PLANE_TYPE_PRIMARY)
+ shmob_drm_primary_plane_setup(splane, new_plane_state);
+ else
+ shmob_drm_overlay_plane_setup(splane, new_plane_state);
+}
+
+static void shmob_drm_plane_atomic_disable(struct drm_plane *plane,
+ struct drm_atomic_state *state)
+{
+ struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, plane);
struct shmob_drm_device *sdev = to_shmob_device(plane->dev);
struct shmob_drm_plane *splane = to_shmob_plane(plane);
- unsigned int ovl_idx = splane->index - 1;
+ unsigned int ovl_idx;

- splane->format = NULL;
+ if (!old_state->crtc)
+ return;
+
+ if (plane->type != DRM_PLANE_TYPE_OVERLAY)
+ return;

+ ovl_idx = splane->index - 1;
lcdc_write(sdev, LDBCR, LDBCR_UPC(ovl_idx));
lcdc_write(sdev, LDBnBSIFR(ovl_idx), 0);
- lcdc_write(sdev, LDBCR,
- LDBCR_UPF(ovl_idx) | LDBCR_UPD(ovl_idx));
- return 0;
+ lcdc_write(sdev, LDBCR, LDBCR_UPF(ovl_idx) | LDBCR_UPD(ovl_idx));
+}
+
+static struct drm_plane_state *
+shmob_drm_plane_atomic_duplicate_state(struct drm_plane *plane)
+{
+ struct shmob_drm_plane_state *state;
+ struct shmob_drm_plane_state *copy;
+
+ if (WARN_ON(!plane->state))
+ return NULL;
+
+ state = to_shmob_plane_state(plane->state);
+ copy = kmemdup(state, sizeof(*state), GFP_KERNEL);
+ if (copy == NULL)
+ return NULL;
+
+ __drm_atomic_helper_plane_duplicate_state(plane, &copy->base);
+
+ return &copy->base;
+}
+
+static void shmob_drm_plane_atomic_destroy_state(struct drm_plane *plane,
+ struct drm_plane_state *state)
+{
+ __drm_atomic_helper_plane_destroy_state(state);
+ kfree(to_shmob_plane_state(state));
+}
+
+static void shmob_drm_plane_reset(struct drm_plane *plane)
+{
+ struct shmob_drm_plane_state *state;
+
+ if (plane->state) {
+ shmob_drm_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->base);
}

-static const struct drm_plane_funcs primary_plane_funcs = {
- .update_plane = drm_plane_helper_update_primary,
- .disable_plane = drm_plane_helper_disable_primary,
+static const struct drm_plane_helper_funcs shmob_drm_plane_helper_funcs = {
+ .atomic_check = shmob_drm_plane_atomic_check,
+ .atomic_update = shmob_drm_plane_atomic_update,
+ .atomic_disable = shmob_drm_plane_atomic_disable,
};

static const struct drm_plane_funcs shmob_drm_plane_funcs = {
- .update_plane = shmob_drm_plane_update,
- .disable_plane = shmob_drm_plane_disable,
+ .update_plane = drm_atomic_helper_update_plane,
+ .disable_plane = drm_atomic_helper_disable_plane,
+ .reset = shmob_drm_plane_reset,
+ .atomic_duplicate_state = shmob_drm_plane_atomic_duplicate_state,
+ .atomic_destroy_state = shmob_drm_plane_atomic_destroy_state,
};

static const uint32_t formats[] = {
@@ -208,28 +299,25 @@ static const uint32_t formats[] = {
struct drm_plane *shmob_drm_plane_create(struct shmob_drm_device *sdev,
unsigned int index)
{
- const struct drm_plane_funcs *funcs;
struct shmob_drm_plane *splane;
enum drm_plane_type type;

- if (!index) {
+ if (!index)
type = DRM_PLANE_TYPE_PRIMARY;
- funcs = &primary_plane_funcs;
- } else {
+ else
type = DRM_PLANE_TYPE_OVERLAY;
- funcs = &shmob_drm_plane_funcs;
- }

splane = drmm_universal_plane_alloc(&sdev->ddev,
struct shmob_drm_plane, base, 1,
- funcs, formats,
+ &shmob_drm_plane_funcs, formats,
ARRAY_SIZE(formats), NULL, type,
NULL);
if (IS_ERR(splane))
return ERR_CAST(splane);

splane->index = index;
- splane->alpha = 255;
+
+ drm_plane_helper_add(&splane->base, &shmob_drm_plane_helper_funcs);

return &splane->base;
}
diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.h b/drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.h
index 29cf6732d479a509..c6744859c4941d6c 100644
--- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.h
+++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.h
@@ -15,6 +15,5 @@ struct shmob_drm_device;

struct drm_plane *shmob_drm_plane_create(struct shmob_drm_device *sdev,
unsigned int index);
-void shmob_drm_plane_setup(struct drm_plane *plane);

#endif /* __SHMOB_DRM_PLANE_H__ */
--
2.34.1