[PATCH v3 03/10] drm/imx: atomic phase 1: Use transitional atomic CRTC and plane helpers
Liu Ying
gnuiyl at gmail.com
Mon Jul 4 07:40:32 UTC 2016
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 at gmail.com>
---
v2->v3:
* A minor change to simplify the way we find crtc->enabled in
drm_plane_helper_funcs->atomic_check.
v1->v2:
* Get the overlay ipu plane resource when initializing the relevant CRTC
and do not get ipu plane resource any more when updating plane to avoid
resource allocation failure.
* Remove obsolete comments from ipu_crtc_enable/disable().
drivers/gpu/drm/imx/ipuv3-crtc.c | 197 ++++++++-------
drivers/gpu/drm/imx/ipuv3-plane.c | 511 +++++++++++++++++++++++---------------
drivers/gpu/drm/imx/ipuv3-plane.h | 16 +-
drivers/gpu/ipu-v3/ipu-dc.c | 5 +-
drivers/gpu/ipu-v3/ipu-di.c | 3 -
5 files changed, 410 insertions(+), 322 deletions(-)
diff --git a/drivers/gpu/drm/imx/ipuv3-crtc.c b/drivers/gpu/drm/imx/ipuv3-crtc.c
index fc04041..ba880fa 100644
--- a/drivers/gpu/drm/imx/ipuv3-crtc.c
+++ b/drivers/gpu/drm/imx/ipuv3-crtc.c
@@ -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;
}
}
@@ -234,79 +234,6 @@ 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)
-{
- struct drm_device *dev = crtc->dev;
- struct drm_encoder *encoder;
- struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
- 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);
- dev_dbg(ipu_crtc->dev, "%s: mode->vdisplay: %d\n", __func__,
- mode->vdisplay);
-
- list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
- if (encoder->crtc == crtc)
- encoder_types |= BIT(encoder->encoder_type);
-
- dev_dbg(ipu_crtc->dev, "%s: attached to encoder types 0x%lx\n",
- __func__, encoder_types);
-
- /*
- * If we have DAC or LDB, then we need the IPU DI clock to be
- * the same as the LDB DI clock. For TVDAC, derive the IPU DI
- * clock from 27 MHz TVE_DI clock, but allow to divide it.
- */
- if (encoder_types & (BIT(DRM_MODE_ENCODER_DAC) |
- BIT(DRM_MODE_ENCODER_LVDS)))
- sig_cfg.clkflags = IPU_DI_CLKMODE_SYNC | IPU_DI_CLKMODE_EXT;
- else if (encoder_types & BIT(DRM_MODE_ENCODER_TVDAC))
- sig_cfg.clkflags = IPU_DI_CLKMODE_EXT;
- else
- sig_cfg.clkflags = 0;
-
- sig_cfg.enable_pol = !(ipu_crtc->bus_flags & DRM_BUS_FLAG_DE_LOW);
- /* Default to driving pixel data on negative clock edges */
- sig_cfg.clk_pol = !!(ipu_crtc->bus_flags &
- DRM_BUS_FLAG_PIXDATA_POSEDGE);
- sig_cfg.bus_format = ipu_crtc->bus_format;
- sig_cfg.v_to_h_sync = 0;
- sig_cfg.hsync_pin = ipu_crtc->di_hsync_pin;
- sig_cfg.vsync_pin = ipu_crtc->di_vsync_pin;
-
- 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;
@@ -330,8 +257,7 @@ static irqreturn_t ipu_irq_handler(int irq, void *dev_id)
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_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);
@@ -355,6 +281,9 @@ static bool ipu_crtc_mode_fixup(struct drm_crtc *crtc,
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;
@@ -364,28 +293,95 @@ static void ipu_crtc_prepare(struct drm_crtc *crtc)
{
struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
- ipu_fb_disable(ipu_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_fb_enable(ipu_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;
+
+ dev_dbg(ipu_crtc->dev, "%s: mode->hdisplay: %d\n", __func__,
+ mode->hdisplay);
+ dev_dbg(ipu_crtc->dev, "%s: mode->vdisplay: %d\n", __func__,
+ mode->vdisplay);
+
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
+ if (encoder->crtc == crtc)
+ encoder_types |= BIT(encoder->encoder_type);
+
+ dev_dbg(ipu_crtc->dev, "%s: attached to encoder types 0x%lx\n",
+ __func__, encoder_types);
+
+ /*
+ * If we have DAC or LDB, then we need the IPU DI clock to be
+ * the same as the LDB DI clock. For TVDAC, derive the IPU DI
+ * clock from 27 MHz TVE_DI clock, but allow to divide it.
+ */
+ if (encoder_types & (BIT(DRM_MODE_ENCODER_DAC) |
+ BIT(DRM_MODE_ENCODER_LVDS)))
+ sig_cfg.clkflags = IPU_DI_CLKMODE_SYNC | IPU_DI_CLKMODE_EXT;
+ else if (encoder_types & BIT(DRM_MODE_ENCODER_TVDAC))
+ sig_cfg.clkflags = IPU_DI_CLKMODE_EXT;
+ else
+ sig_cfg.clkflags = 0;
+
+ sig_cfg.enable_pol = !(ipu_crtc->bus_flags & DRM_BUS_FLAG_DE_LOW);
+ /* Default to driving pixel data on negative clock edges */
+ sig_cfg.clk_pol = !!(ipu_crtc->bus_flags &
+ DRM_BUS_FLAG_PIXDATA_POSEDGE);
+ sig_cfg.bus_format = ipu_crtc->bus_format;
+ sig_cfg.v_to_h_sync = 0;
+ sig_cfg.hsync_pin = ipu_crtc->di_hsync_pin;
+ sig_cfg.vsync_pin = ipu_crtc->di_vsync_pin;
+
+ drm_display_mode_to_videomode(mode, &sig_cfg.mode);
+
+ 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 = {
diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c
index 02701de..59f2353 100644
--- a/drivers/gpu/drm/imx/ipuv3-plane.c
+++ b/drivers/gpu/drm/imx/ipuv3-plane.c
@@ -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,
@@ -151,164 +163,111 @@ 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);
- } else {
- 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;
+ 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;
}
-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)
+static inline unsigned long
+drm_plane_state_to_eba(struct drm_plane_state *state)
{
- struct device *dev = ipu_plane->base.dev->dev;
- int ret;
+ struct drm_framebuffer *fb = state->fb;
+ struct drm_gem_cma_object *cma_obj;
- /* no scaling */
- if (src_w != crtc_w || src_h != crtc_h)
- return -EINVAL;
+ cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
+ BUG_ON(!cma_obj);
- 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;
+ return cma_obj->paddr + fb->offsets[0] +
+ fb->pitches[0] * (state->src_y >> 16) +
+ (fb->bits_per_pixel >> 3) * (state->src_x >> 16);
+}
- /* 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;
+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);
- /*
- * 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;
+ cma_obj = drm_fb_cma_get_gem_obj(fb, 1);
+ BUG_ON(!cma_obj);
- return ipu_plane_set_base(ipu_plane, fb, src_x, src_y);
- }
+ return cma_obj->paddr + fb->offsets[1] +
+ fb->pitches[1] * (state->src_y >> 16) / 2 +
+ (state->src_x >> 16) / 2 - eba;
+}
- 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:
+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;
+}
+
+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;
- }
- }
- ipu_dmfc_config_wait4eot(ipu_plane->dmfc, crtc_w);
+ /*
+ * 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);
- 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]);
+ 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);
- 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);
- }
+ 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);
- ipu_plane->w = src_w;
- ipu_plane->h = src_h;
+ break;
+ }
- return 0;
+ 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);
+ } else {
+ ipu_cpmem_set_buffer(ipu_plane->ipu_ch, 0, eba);
+ ipu_cpmem_set_buffer(ipu_plane->ipu_ch, 1, eba);
+ }
}
void ipu_plane_put_resources(struct ipu_plane *ipu_plane)
@@ -355,7 +314,7 @@ err_out:
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)
@@ -381,74 +336,216 @@ 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)
+static int ipu_disable_plane(struct drm_plane *plane)
{
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);
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
- if (!ipu_plane->enabled)
- ipu_plane_enable(ipu_plane);
+ ipu_plane_disable(ipu_plane);
return 0;
}
-static int ipu_disable_plane(struct drm_plane *plane)
+static void ipu_plane_destroy(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_disable_plane(plane);
+ drm_plane_cleanup(plane);
+ kfree(ipu_plane);
+}
- ipu_plane_put_resources(ipu_plane);
+static const struct drm_plane_funcs ipu_plane_funcs = {
+ .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_destroy(struct drm_plane *plane)
+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;
- DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+ if (old_state->fb) {
+ ipu_plane_atomic_set_base(ipu_plane, old_state);
+ return;
+ }
- ipu_disable_plane(plane);
- drm_plane_cleanup(plane);
- kfree(ipu_plane);
+ 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_funcs ipu_plane_funcs = {
- .update_plane = ipu_update_plane,
- .disable_plane = ipu_disable_plane,
- .destroy = ipu_plane_destroy,
+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,
@@ -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;
}
diff --git a/drivers/gpu/drm/imx/ipuv3-plane.h b/drivers/gpu/drm/imx/ipuv3-plane.h
index 4448fd4..c51a44b 100644
--- a/drivers/gpu/drm/imx/ipuv3-plane.h
+++ b/drivers/gpu/drm/imx/ipuv3-plane.h
@@ -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);
diff --git a/drivers/gpu/ipu-v3/ipu-dc.c b/drivers/gpu/ipu-v3/ipu-dc.c
index 2f29780..cd72dad 100644
--- a/drivers/gpu/ipu-v3/ipu-dc.c
+++ b/drivers/gpu/ipu-v3/ipu-dc.c
@@ -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
diff --git a/drivers/gpu/ipu-v3/ipu-di.c b/drivers/gpu/ipu-v3/ipu-di.c
index 359268e..a8d87dd 100644
--- a/drivers/gpu/ipu-v3/ipu-di.c
+++ b/drivers/gpu/ipu-v3/ipu-di.c
@@ -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),
--
2.7.4
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