The IPUv3 primary plane doesn't support partial off screen. So, this patch separates plane check logics for primary plane and overlay plane and adds more limitations on the primary plane.

Signed-off-by: Liu Ying gnuiyl@gmail.com --- v1->v2: * Remove an unnecessary copy to address Philipp's comment.

drivers/gpu/drm/imx/ipuv3-plane.c | 67 ++++++++++++++++++++++----------------- 1 file changed, 38 insertions(+), 29 deletions(-)

diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c index a4bb441..cd7eb26 100644 --- a/drivers/gpu/drm/imx/ipuv3-plane.c +++ b/drivers/gpu/drm/imx/ipuv3-plane.c @@ -199,37 +199,46 @@ int ipu_plane_mode_set(struct ipu_plane *ipu_plane, struct drm_crtc *crtc, if (src_w != crtc_w || src_h != crtc_h) return -EINVAL;

- /* clip to crtc bounds */ - if (crtc_x < 0) { - if (-crtc_x > crtc_w) + 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; - 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) + + /* full plane minimum width is 13 pixels */ + if (crtc_w < 13) return -EINVAL; - crtc_h = mode->vdisplay - crtc_y; - src_h = crtc_h; - } - /* full plane minimum width is 13 pixels */ - if (crtc_w < 13 && (ipu_plane->dp_flow != IPU_DP_FLOW_SYNC_FG)) + } 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;

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 --- 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 | 517 +++++++++++++++++++++++--------------- 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, 416 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..9b9260b 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 +336,222 @@ 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_crtc *crtc; + 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 */ + drm_for_each_crtc(crtc, plane->dev) { + if (drm_crtc_mask(crtc) == plane->possible_crtcs) { + if (!crtc->enabled) + return -EINVAL; + break; + } + } + + /* 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 +584,7 @@ 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),

Use drm_atomic_set_fb_for_plane() in the legacy ->page_flip path to track the pointer plane_state->fb correctly.

Signed-off-by: Liu Ying gnuiyl@gmail.com --- v1->v2: * None.

drivers/gpu/drm/imx/ipuv3-crtc.c | 4 ++++ 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/imx/ipuv3-crtc.c b/drivers/gpu/drm/imx/ipuv3-crtc.c index 8a0ef13..7df51e8 100644 --- a/drivers/gpu/drm/imx/ipuv3-crtc.c +++ b/drivers/gpu/drm/imx/ipuv3-crtc.c @@ -18,6 +18,7 @@ #include <linux/device.h> #include <linux/platform_device.h> #include <drm/drmP.h> +#include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_crtc_helper.h> #include <linux/fb.h> @@ -217,6 +218,9 @@ static int ipu_page_flip(struct drm_crtc *crtc, ipu_crtc->flip_state = IPU_FLIP_SUBMITTED; }

+ if (crtc->primary->state) + drm_atomic_set_fb_for_plane(crtc->primary->state, fb); + return 0;

free_flip_work:

Replacing drm_crtc_helper_set_config() by drm_atomic_helper_set_config() and converting the suspend/resume operations to atomic makes us be able to use atomic configurations. All of these allow us to remove the crtc_funcs->mode_set callback as it is no longer used. Also, we may remove all the encoders' ->prepare callbacks as they can be replaced by ->disable. In consequence, the bus_format, bus_flags, di_vsync_pin and di_hsync_pin settings are moved from ->prepare to structure imx_encoder. Furthermore, switching to the pure atomic version of set_config callback means that we may implement CRTC/plane atomic checks by using the new CRTC/plane states instead of the legacy ones and we may remove the private ipu_crtc->enabled state which was left there for the transitional atomic helpers in phase 1. Last, the legacy function drm_helper_disable_unused_functions() is removed from ->load in order not to confuse the atomic driver.

Signed-off-by: Liu Ying gnuiyl@gmail.com --- v1->v2: * Handle the newly introduced bus_flags via imx_encoder after the rebasing. * Remove the legacy function drm_helper_disable_unused_functions() from ->load in order not to confuse the atomic driver.

drivers/gpu/drm/imx/dw_hdmi-imx.c | 18 +++--- drivers/gpu/drm/imx/imx-drm-core.c | 53 ++++------------ drivers/gpu/drm/imx/imx-drm.h | 18 +++--- drivers/gpu/drm/imx/imx-ldb.c | 109 +++++++++++++++------------------ drivers/gpu/drm/imx/imx-tve.c | 58 +++++++----------- drivers/gpu/drm/imx/ipuv3-crtc.c | 69 ++++++--------------- drivers/gpu/drm/imx/ipuv3-plane.c | 23 +++---- drivers/gpu/drm/imx/parallel-display.c | 56 +++++++++-------- 8 files changed, 163 insertions(+), 241 deletions(-)

diff --git a/drivers/gpu/drm/imx/dw_hdmi-imx.c b/drivers/gpu/drm/imx/dw_hdmi-imx.c index a24631fd..5f64674 100644 --- a/drivers/gpu/drm/imx/dw_hdmi-imx.c +++ b/drivers/gpu/drm/imx/dw_hdmi-imx.c @@ -22,9 +22,11 @@

#include "imx-drm.h"

+#define imx_enc_to_imx_hdmi(x) container_of(x, struct imx_hdmi, imx_encoder) + struct imx_hdmi { struct device *dev; - struct drm_encoder encoder; + struct imx_drm_encoder imx_encoder; struct regmap *regmap; };

@@ -117,7 +119,8 @@ static void dw_hdmi_imx_encoder_mode_set(struct drm_encoder *encoder,

static void dw_hdmi_imx_encoder_commit(struct drm_encoder *encoder) { - struct imx_hdmi *hdmi = container_of(encoder, struct imx_hdmi, encoder); + struct imx_drm_encoder *imx_encoder = enc_to_imx_enc(encoder); + struct imx_hdmi *hdmi = imx_enc_to_imx_hdmi(imx_encoder); int mux = drm_of_encoder_active_port_id(hdmi->dev->of_node, encoder);

regmap_update_bits(hdmi->regmap, IOMUXC_GPR3, @@ -125,14 +128,8 @@ static void dw_hdmi_imx_encoder_commit(struct drm_encoder *encoder) mux << IMX6Q_GPR3_HDMI_MUX_CTL_SHIFT); }

-static void dw_hdmi_imx_encoder_prepare(struct drm_encoder *encoder) -{ - imx_drm_set_bus_format(encoder, MEDIA_BUS_FMT_RGB888_1X24); -} - static const struct drm_encoder_helper_funcs dw_hdmi_imx_encoder_helper_funcs = { .mode_set = dw_hdmi_imx_encoder_mode_set, - .prepare = dw_hdmi_imx_encoder_prepare, .commit = dw_hdmi_imx_encoder_commit, .disable = dw_hdmi_imx_encoder_disable, }; @@ -215,7 +212,10 @@ static int dw_hdmi_imx_bind(struct device *dev, struct device *master, match = of_match_node(dw_hdmi_imx_dt_ids, pdev->dev.of_node); plat_data = match->data; hdmi->dev = &pdev->dev; - encoder = &hdmi->encoder; + encoder = &hdmi->imx_encoder.encoder; + hdmi->imx_encoder.bus_format = MEDIA_BUS_FMT_RGB888_1X24; + hdmi->imx_encoder.di_hsync_pin = 2; + hdmi->imx_encoder.di_vsync_pin = 3;

irq = platform_get_irq(pdev, 0); if (irq < 0) diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c index 5893cbc..2a2ab8c 100644 --- a/drivers/gpu/drm/imx/imx-drm-core.c +++ b/drivers/gpu/drm/imx/imx-drm-core.c @@ -42,6 +42,7 @@ struct imx_drm_device { struct imx_drm_crtc *crtc[MAX_CRTC]; unsigned int pipes; struct drm_fbdev_cma *fbhelper; + struct drm_atomic_state *state; };

struct imx_drm_crtc { @@ -86,45 +87,6 @@ static int imx_drm_driver_unload(struct drm_device *drm) return 0; }

-static struct imx_drm_crtc *imx_drm_find_crtc(struct drm_crtc *crtc) -{ - struct imx_drm_device *imxdrm = crtc->dev->dev_private; - unsigned i; - - for (i = 0; i < MAX_CRTC; i++) - if (imxdrm->crtc[i] && imxdrm->crtc[i]->crtc == crtc) - return imxdrm->crtc[i]; - - return NULL; -} - -int imx_drm_set_bus_config(struct drm_encoder *encoder, u32 bus_format, - int hsync_pin, int vsync_pin, u32 bus_flags) -{ - struct imx_drm_crtc_helper_funcs *helper; - struct imx_drm_crtc *imx_crtc; - - imx_crtc = imx_drm_find_crtc(encoder->crtc); - if (!imx_crtc) - return -EINVAL; - - helper = &imx_crtc->imx_drm_helper_funcs; - if (helper->set_interface_pix_fmt) - return helper->set_interface_pix_fmt(encoder->crtc, - bus_format, hsync_pin, vsync_pin, - bus_flags); - return 0; -} -EXPORT_SYMBOL_GPL(imx_drm_set_bus_config); - -int imx_drm_set_bus_format(struct drm_encoder *encoder, u32 bus_format) -{ - return imx_drm_set_bus_config(encoder, bus_format, 2, 3, - DRM_BUS_FLAG_DE_HIGH | - DRM_BUS_FLAG_PIXDATA_NEGEDGE); -} -EXPORT_SYMBOL_GPL(imx_drm_set_bus_format); - int imx_drm_crtc_vblank_get(struct imx_drm_crtc *imx_drm_crtc) { return drm_crtc_vblank_get(imx_drm_crtc->crtc); @@ -294,7 +256,6 @@ static int imx_drm_driver_load(struct drm_device *drm, unsigned long flags) dev_warn(drm->dev, "Invalid legacyfb_depth. Defaulting to 16bpp\n"); legacyfb_depth = 16; } - drm_helper_disable_unused_functions(drm); imxdrm->fbhelper = drm_fbdev_cma_init(drm, legacyfb_depth, drm->mode_config.num_crtc, MAX_CRTC); if (IS_ERR(imxdrm->fbhelper)) { @@ -497,6 +458,7 @@ static int imx_drm_platform_remove(struct platform_device *pdev) static int imx_drm_suspend(struct device *dev) { struct drm_device *drm_dev = dev_get_drvdata(dev); + struct imx_drm_device *imxdrm;

/* The drm_dev is NULL before .load hook is called */ if (drm_dev == NULL) @@ -504,17 +466,26 @@ static int imx_drm_suspend(struct device *dev)

drm_kms_helper_poll_disable(drm_dev);

+ imxdrm = drm_dev->dev_private; + imxdrm->state = drm_atomic_helper_suspend(drm_dev); + if (IS_ERR(imxdrm->state)) { + drm_kms_helper_poll_enable(drm_dev); + return PTR_ERR(imxdrm->state); + } + return 0; }

static int imx_drm_resume(struct device *dev) { struct drm_device *drm_dev = dev_get_drvdata(dev); + struct imx_drm_device *imx_drm;

if (drm_dev == NULL) return 0;

- drm_helper_resume_force_mode(drm_dev); + imx_drm = drm_dev->dev_private; + drm_atomic_helper_resume(drm_dev, imx_drm->state); drm_kms_helper_poll_enable(drm_dev);

return 0; diff --git a/drivers/gpu/drm/imx/imx-drm.h b/drivers/gpu/drm/imx/imx-drm.h index 74320a1..39cef15 100644 --- a/drivers/gpu/drm/imx/imx-drm.h +++ b/drivers/gpu/drm/imx/imx-drm.h @@ -15,12 +15,19 @@ struct platform_device;

unsigned int imx_drm_crtc_id(struct imx_drm_crtc *crtc);

+struct imx_drm_encoder { + struct drm_encoder encoder; + u32 bus_format; + u32 bus_flags; + int di_hsync_pin; + int di_vsync_pin; +}; + +#define enc_to_imx_enc(x) container_of(x, struct imx_drm_encoder, encoder) + struct imx_drm_crtc_helper_funcs { int (*enable_vblank)(struct drm_crtc *crtc); void (*disable_vblank)(struct drm_crtc *crtc); - int (*set_interface_pix_fmt)(struct drm_crtc *crtc, - u32 bus_format, int hsync_pin, int vsync_pin, - u32 bus_flags); const struct drm_crtc_helper_funcs *crtc_helper_funcs; const struct drm_crtc_funcs *crtc_funcs; }; @@ -42,11 +49,6 @@ void imx_drm_mode_config_init(struct drm_device *drm);

struct drm_gem_cma_object *imx_drm_fb_get_obj(struct drm_framebuffer *fb);

-int imx_drm_set_bus_config(struct drm_encoder *encoder, u32 bus_format, - int hsync_pin, int vsync_pin, u32 bus_flags); -int imx_drm_set_bus_format(struct drm_encoder *encoder, - u32 bus_format); - int imx_drm_encoder_parse_of(struct drm_device *drm, struct drm_encoder *encoder, struct device_node *np);

diff --git a/drivers/gpu/drm/imx/imx-ldb.c b/drivers/gpu/drm/imx/imx-ldb.c index 12bf368..4a98eaa 100644 --- a/drivers/gpu/drm/imx/imx-ldb.c +++ b/drivers/gpu/drm/imx/imx-ldb.c @@ -51,14 +51,15 @@ #define LDB_BGREF_RMODE_INT (1 << 15)

#define con_to_imx_ldb_ch(x) container_of(x, struct imx_ldb_channel, connector) -#define enc_to_imx_ldb_ch(x) container_of(x, struct imx_ldb_channel, encoder) +#define imx_enc_to_imx_ldb_ch(x) \ + container_of(x, struct imx_ldb_channel, imx_encoder)

struct imx_ldb;

struct imx_ldb_channel { struct imx_ldb *ldb; struct drm_connector connector; - struct drm_encoder encoder; + struct imx_drm_encoder imx_encoder; struct drm_panel *panel; struct device_node *child; struct i2c_adapter *ddc; @@ -67,7 +68,6 @@ struct imx_ldb_channel { int edid_len; struct drm_display_mode mode; int mode_valid; - int bus_format; };

struct bus_mux { @@ -104,8 +104,8 @@ static int imx_ldb_connector_get_modes(struct drm_connector *connector) struct drm_display_info *di = &connector->display_info;

num_modes = imx_ldb_ch->panel->funcs->get_modes(imx_ldb_ch->panel); - if (!imx_ldb_ch->bus_format && di->num_bus_formats) - imx_ldb_ch->bus_format = di->bus_formats[0]; + if (!imx_ldb_ch->imx_encoder.bus_format && di->num_bus_formats) + imx_ldb_ch->imx_encoder.bus_format = di->bus_formats[0]; if (num_modes > 0) return num_modes; } @@ -139,7 +139,7 @@ static struct drm_encoder *imx_ldb_connector_best_encoder( { struct imx_ldb_channel *imx_ldb_ch = con_to_imx_ldb_ch(connector);

- return &imx_ldb_ch->encoder; + return &imx_ldb_ch->imx_encoder.encoder; }

static void imx_ldb_encoder_dpms(struct drm_encoder *encoder, int mode) @@ -174,45 +174,10 @@ static void imx_ldb_set_clock(struct imx_ldb *ldb, int mux, int chno, chno); }

-static void imx_ldb_encoder_prepare(struct drm_encoder *encoder) -{ - struct imx_ldb_channel *imx_ldb_ch = enc_to_imx_ldb_ch(encoder); - struct imx_ldb *ldb = imx_ldb_ch->ldb; - int dual = ldb->ldb_ctrl & LDB_SPLIT_MODE_EN; - u32 bus_format; - - switch (imx_ldb_ch->bus_format) { - default: - dev_warn(ldb->dev, - "could not determine data mapping, default to 18-bit "spwg"\n"); - /* fallthrough */ - case MEDIA_BUS_FMT_RGB666_1X7X3_SPWG: - bus_format = MEDIA_BUS_FMT_RGB666_1X18; - break; - case MEDIA_BUS_FMT_RGB888_1X7X4_SPWG: - bus_format = MEDIA_BUS_FMT_RGB888_1X24; - if (imx_ldb_ch->chno == 0 || dual) - ldb->ldb_ctrl |= LDB_DATA_WIDTH_CH0_24; - if (imx_ldb_ch->chno == 1 || dual) - ldb->ldb_ctrl |= LDB_DATA_WIDTH_CH1_24; - break; - case MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA: - bus_format = MEDIA_BUS_FMT_RGB888_1X24; - if (imx_ldb_ch->chno == 0 || dual) - ldb->ldb_ctrl |= LDB_DATA_WIDTH_CH0_24 | - LDB_BIT_MAP_CH0_JEIDA; - if (imx_ldb_ch->chno == 1 || dual) - ldb->ldb_ctrl |= LDB_DATA_WIDTH_CH1_24 | - LDB_BIT_MAP_CH1_JEIDA; - break; - } - - imx_drm_set_bus_format(encoder, bus_format); -} - static void imx_ldb_encoder_commit(struct drm_encoder *encoder) { - struct imx_ldb_channel *imx_ldb_ch = enc_to_imx_ldb_ch(encoder); + struct imx_drm_encoder *imx_encoder = enc_to_imx_enc(encoder); + struct imx_ldb_channel *imx_ldb_ch = imx_enc_to_imx_ldb_ch(imx_encoder); struct imx_ldb *ldb = imx_ldb_ch->ldb; int dual = ldb->ldb_ctrl & LDB_SPLIT_MODE_EN; int mux = drm_of_encoder_active_port_id(imx_ldb_ch->child, encoder); @@ -260,7 +225,8 @@ static void imx_ldb_encoder_mode_set(struct drm_encoder *encoder, struct drm_display_mode *orig_mode, struct drm_display_mode *mode) { - struct imx_ldb_channel *imx_ldb_ch = enc_to_imx_ldb_ch(encoder); + struct imx_drm_encoder *imx_encoder = enc_to_imx_enc(encoder); + struct imx_ldb_channel *imx_ldb_ch = imx_enc_to_imx_ldb_ch(imx_encoder); struct imx_ldb *ldb = imx_ldb_ch->ldb; int dual = ldb->ldb_ctrl & LDB_SPLIT_MODE_EN; unsigned long serial_clk; @@ -303,7 +269,8 @@ static void imx_ldb_encoder_mode_set(struct drm_encoder *encoder,

static void imx_ldb_encoder_disable(struct drm_encoder *encoder) { - struct imx_ldb_channel *imx_ldb_ch = enc_to_imx_ldb_ch(encoder); + struct imx_drm_encoder *imx_encoder = enc_to_imx_enc(encoder); + struct imx_ldb_channel *imx_ldb_ch = imx_enc_to_imx_ldb_ch(imx_encoder); struct imx_ldb *ldb = imx_ldb_ch->ldb; int mux, ret;

@@ -379,7 +346,6 @@ static const struct drm_encoder_funcs imx_ldb_encoder_funcs = {

static const struct drm_encoder_helper_funcs imx_ldb_encoder_helper_funcs = { .dpms = imx_ldb_encoder_dpms, - .prepare = imx_ldb_encoder_prepare, .commit = imx_ldb_encoder_commit, .mode_set = imx_ldb_encoder_mode_set, .disable = imx_ldb_encoder_disable, @@ -406,7 +372,7 @@ static int imx_ldb_register(struct drm_device *drm, struct imx_ldb *ldb = imx_ldb_ch->ldb; int ret;

- ret = imx_drm_encoder_parse_of(drm, &imx_ldb_ch->encoder, + ret = imx_drm_encoder_parse_of(drm, &imx_ldb_ch->imx_encoder.encoder, imx_ldb_ch->child); if (ret) return ret; @@ -421,10 +387,10 @@ static int imx_ldb_register(struct drm_device *drm, return ret; }

- drm_encoder_helper_add(&imx_ldb_ch->encoder, + drm_encoder_helper_add(&imx_ldb_ch->imx_encoder.encoder, &imx_ldb_encoder_helper_funcs); - drm_encoder_init(drm, &imx_ldb_ch->encoder, &imx_ldb_encoder_funcs, - DRM_MODE_ENCODER_LVDS, NULL); + drm_encoder_init(drm, &imx_ldb_ch->imx_encoder.encoder, + &imx_ldb_encoder_funcs, DRM_MODE_ENCODER_LVDS, NULL);

drm_connector_helper_add(&imx_ldb_ch->connector, &imx_ldb_connector_helper_funcs); @@ -435,7 +401,7 @@ static int imx_ldb_register(struct drm_device *drm, drm_panel_attach(imx_ldb_ch->panel, &imx_ldb_ch->connector);

drm_mode_connector_attach_encoder(&imx_ldb_ch->connector, - &imx_ldb_ch->encoder); + &imx_ldb_ch->imx_encoder.encoder);

return 0; } @@ -564,6 +530,7 @@ static int imx_ldb_bind(struct device *dev, struct device *master, void *data) struct imx_ldb_channel *channel; struct device_node *ddc_node; struct device_node *ep; + int bus_format;

ret = of_property_read_u32(child, "reg", &i); if (ret || i < 0 || i > 1) @@ -636,21 +603,46 @@ static int imx_ldb_bind(struct device *dev, struct device *master, void *data) } }

- channel->bus_format = of_get_bus_format(dev, child); - if (channel->bus_format == -EINVAL) { + bus_format = of_get_bus_format(dev, child); + if (bus_format == -EINVAL) { /* * If no bus format was specified in the device tree, * we can still get it from the connected panel later. */ if (channel->panel && channel->panel->funcs && channel->panel->funcs->get_modes) - channel->bus_format = 0; + bus_format = 0; } - if (channel->bus_format < 0) { + if (bus_format < 0) { dev_err(dev, "could not determine data mapping: %d\n", - channel->bus_format); - return channel->bus_format; + bus_format); + return bus_format; } + switch (bus_format) { + case MEDIA_BUS_FMT_RGB666_1X7X3_SPWG: + bus_format = MEDIA_BUS_FMT_RGB666_1X18; + break; + case MEDIA_BUS_FMT_RGB888_1X7X4_SPWG: + bus_format = MEDIA_BUS_FMT_RGB888_1X24; + if (i == 0 || dual) + imx_ldb->ldb_ctrl |= LDB_DATA_WIDTH_CH0_24; + if (i == 1 || dual) + imx_ldb->ldb_ctrl |= LDB_DATA_WIDTH_CH1_24; + break; + case MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA: + bus_format = MEDIA_BUS_FMT_RGB888_1X24; + if (i == 0 || dual) + imx_ldb->ldb_ctrl |= LDB_DATA_WIDTH_CH0_24 | + LDB_BIT_MAP_CH0_JEIDA; + if (i == 1 || dual) + imx_ldb->ldb_ctrl |= LDB_DATA_WIDTH_CH1_24 | + LDB_BIT_MAP_CH1_JEIDA; + break; + } + channel->imx_encoder.bus_format = bus_format; + + channel->imx_encoder.di_hsync_pin = 2; + channel->imx_encoder.di_vsync_pin = 3;

ret = imx_ldb_register(drm, channel); if (ret) @@ -675,7 +667,8 @@ static void imx_ldb_unbind(struct device *dev, struct device *master, continue;

channel->connector.funcs->destroy(&channel->connector); - channel->encoder.funcs->destroy(&channel->encoder); + channel->imx_encoder.encoder.funcs->destroy( + &channel->imx_encoder.encoder);

kfree(channel->edid); i2c_put_adapter(channel->ddc); diff --git a/drivers/gpu/drm/imx/imx-tve.c b/drivers/gpu/drm/imx/imx-tve.c index 0b0aeee..82a1edd 100644 --- a/drivers/gpu/drm/imx/imx-tve.c +++ b/drivers/gpu/drm/imx/imx-tve.c @@ -99,7 +99,7 @@ #define TVE_TVDAC_TEST_MODE_MASK (0x7 << 0)

#define con_to_tve(x) container_of(x, struct imx_tve, connector) -#define enc_to_tve(x) container_of(x, struct imx_tve, encoder) +#define imx_enc_to_tve(x) container_of(x, struct imx_tve, imx_encoder)

enum { TVE_MODE_TVOUT, @@ -108,7 +108,7 @@ enum {

struct imx_tve { struct drm_connector connector; - struct drm_encoder encoder; + struct imx_drm_encoder imx_encoder; struct device *dev; spinlock_t lock; /* register lock */ bool enabled; @@ -121,8 +121,6 @@ struct imx_tve { struct clk *di_sel_clk; struct clk_hw clk_hw_di; struct clk *di_clk; - int vsync_pin; - int hsync_pin; };

static void tve_lock(void *__tve) @@ -273,12 +271,13 @@ static struct drm_encoder *imx_tve_connector_best_encoder( { struct imx_tve *tve = con_to_tve(connector);

- return &tve->encoder; + return &tve->imx_encoder.encoder; }

static void imx_tve_encoder_dpms(struct drm_encoder *encoder, int mode) { - struct imx_tve *tve = enc_to_tve(encoder); + struct imx_drm_encoder *imx_encoder = enc_to_imx_enc(encoder); + struct imx_tve *tve = imx_enc_to_tve(imx_encoder); int ret;

ret = regmap_update_bits(tve->regmap, TVE_COM_CONF_REG, @@ -287,30 +286,12 @@ static void imx_tve_encoder_dpms(struct drm_encoder *encoder, int mode) dev_err(tve->dev, "failed to disable TVOUT: %d\n", ret); }

-static void imx_tve_encoder_prepare(struct drm_encoder *encoder) -{ - struct imx_tve *tve = enc_to_tve(encoder); - - tve_disable(tve); - - switch (tve->mode) { - case TVE_MODE_VGA: - imx_drm_set_bus_config(encoder, MEDIA_BUS_FMT_GBR888_1X24, - tve->hsync_pin, tve->vsync_pin, - DRM_BUS_FLAG_DE_HIGH | - DRM_BUS_FLAG_PIXDATA_NEGEDGE); - break; - case TVE_MODE_TVOUT: - imx_drm_set_bus_format(encoder, MEDIA_BUS_FMT_YUV8_1X24); - break; - } -} - static void imx_tve_encoder_mode_set(struct drm_encoder *encoder, struct drm_display_mode *orig_mode, struct drm_display_mode *mode) { - struct imx_tve *tve = enc_to_tve(encoder); + struct imx_drm_encoder *imx_encoder = enc_to_imx_enc(encoder); + struct imx_tve *tve = imx_enc_to_tve(imx_encoder); unsigned long rounded_rate; unsigned long rate; int div = 1; @@ -344,14 +325,16 @@ static void imx_tve_encoder_mode_set(struct drm_encoder *encoder,

static void imx_tve_encoder_commit(struct drm_encoder *encoder) { - struct imx_tve *tve = enc_to_tve(encoder); + struct imx_drm_encoder *imx_encoder = enc_to_imx_enc(encoder); + struct imx_tve *tve = imx_enc_to_tve(imx_encoder);

tve_enable(tve); }

static void imx_tve_encoder_disable(struct drm_encoder *encoder) { - struct imx_tve *tve = enc_to_tve(encoder); + struct imx_drm_encoder *imx_encoder = enc_to_imx_enc(encoder); + struct imx_tve *tve = imx_enc_to_tve(imx_encoder);

tve_disable(tve); } @@ -378,7 +361,6 @@ static const struct drm_encoder_funcs imx_tve_encoder_funcs = {

static const struct drm_encoder_helper_funcs imx_tve_encoder_helper_funcs = { .dpms = imx_tve_encoder_dpms, - .prepare = imx_tve_encoder_prepare, .mode_set = imx_tve_encoder_mode_set, .commit = imx_tve_encoder_commit, .disable = imx_tve_encoder_disable, @@ -499,13 +481,14 @@ static int imx_tve_register(struct drm_device *drm, struct imx_tve *tve) encoder_type = tve->mode == TVE_MODE_VGA ? DRM_MODE_ENCODER_DAC : DRM_MODE_ENCODER_TVDAC;

- ret = imx_drm_encoder_parse_of(drm, &tve->encoder, + ret = imx_drm_encoder_parse_of(drm, &tve->imx_encoder.encoder, tve->dev->of_node); if (ret) return ret;

- drm_encoder_helper_add(&tve->encoder, &imx_tve_encoder_helper_funcs); - drm_encoder_init(drm, &tve->encoder, &imx_tve_encoder_funcs, + drm_encoder_helper_add(&tve->imx_encoder.encoder, + &imx_tve_encoder_helper_funcs); + drm_encoder_init(drm, &tve->imx_encoder.encoder, &imx_tve_encoder_funcs, encoder_type, NULL);

drm_connector_helper_add(&tve->connector, @@ -513,7 +496,8 @@ static int imx_tve_register(struct drm_device *drm, struct imx_tve *tve) drm_connector_init(drm, &tve->connector, &imx_tve_connector_funcs, DRM_MODE_CONNECTOR_VGA);

- drm_mode_connector_attach_encoder(&tve->connector, &tve->encoder); + drm_mode_connector_attach_encoder(&tve->connector, + &tve->imx_encoder.encoder);

return 0; } @@ -591,7 +575,7 @@ static int imx_tve_bind(struct device *dev, struct device *master, void *data)

if (tve->mode == TVE_MODE_VGA) { ret = of_property_read_u32(np, "fsl,hsync-pin", - &tve->hsync_pin); + &tve->imx_encoder.di_hsync_pin);

if (ret < 0) { dev_err(dev, "failed to get vsync pin\n"); @@ -599,12 +583,14 @@ static int imx_tve_bind(struct device *dev, struct device *master, void *data) }

ret |= of_property_read_u32(np, "fsl,vsync-pin", - &tve->vsync_pin); + &tve->imx_encoder.di_vsync_pin);

if (ret < 0) { dev_err(dev, "failed to get vsync pin\n"); return ret; } + + tve->imx_encoder.bus_format = MEDIA_BUS_FMT_GBR888_1X24; }

res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -693,7 +679,7 @@ static void imx_tve_unbind(struct device *dev, struct device *master, struct imx_tve *tve = dev_get_drvdata(dev);

tve->connector.funcs->destroy(&tve->connector); - tve->encoder.funcs->destroy(&tve->encoder); + tve->imx_encoder.encoder.funcs->destroy(&tve->imx_encoder.encoder);

if (!IS_ERR(tve->dac_reg)) regulator_disable(tve->dac_reg); diff --git a/drivers/gpu/drm/imx/ipuv3-crtc.c b/drivers/gpu/drm/imx/ipuv3-crtc.c index 7df51e8..7f4475a1 100644 --- a/drivers/gpu/drm/imx/ipuv3-crtc.c +++ b/drivers/gpu/drm/imx/ipuv3-crtc.c @@ -62,15 +62,10 @@ struct ipu_crtc {

struct ipu_dc *dc; struct ipu_di *di; - int enabled; enum ipu_flip_status flip_state; struct workqueue_struct *flip_queue; struct ipu_flip_work *flip_work; int irq; - u32 bus_format; - u32 bus_flags; - int di_hsync_pin; - int di_vsync_pin; };

#define to_ipu_crtc(x) container_of(x, struct ipu_crtc, base) @@ -79,18 +74,9 @@ static void ipu_crtc_enable(struct ipu_crtc *ipu_crtc) { struct ipu_soc *ipu = dev_get_drvdata(ipu_crtc->dev->parent);

- if (ipu_crtc->enabled) - return; - ipu_dc_enable(ipu); ipu_dc_enable_channel(ipu_crtc->dc); ipu_di_enable(ipu_crtc->di); - 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); }

@@ -98,14 +84,9 @@ 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; - ipu_dc_disable_channel(ipu_crtc->dc); ipu_di_disable(ipu_crtc->di); ipu_dc_disable(ipu); - ipu_crtc->enabled = 0; - drm_crtc_vblank_off(&ipu_crtc->base); }

@@ -234,7 +215,7 @@ put_vblank: }

static const struct drm_crtc_funcs ipu_crtc_funcs = { - .set_config = drm_crtc_helper_set_config, + .set_config = drm_atomic_helper_set_config, .destroy = drm_crtc_cleanup, .page_flip = ipu_page_flip, .reset = drm_atomic_helper_crtc_reset, @@ -314,6 +295,11 @@ static void ipu_crtc_commit(struct drm_crtc *crtc) static int ipu_crtc_atomic_check(struct drm_crtc *crtc, struct drm_crtc_state *state) { + u32 primary_plane_mask = 1 << drm_plane_index(crtc->primary); + + if (state->active && (primary_plane_mask & state->plane_mask) == 0) + return -EINVAL; + return 0; }

@@ -321,6 +307,7 @@ static void ipu_crtc_mode_set_nofb(struct drm_crtc *crtc) { struct drm_device *dev = crtc->dev; struct drm_encoder *encoder; + struct imx_drm_encoder *imx_encoder = NULL; 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 = {}; @@ -331,9 +318,12 @@ static void ipu_crtc_mode_set_nofb(struct drm_crtc *crtc) 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) + list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + if (encoder->crtc == crtc) { encoder_types |= BIT(encoder->encoder_type); + imx_encoder = enc_to_imx_enc(encoder); + } + }

dev_dbg(ipu_crtc->dev, "%s: attached to encoder types 0x%lx\n", __func__, encoder_types); @@ -351,27 +341,26 @@ static void ipu_crtc_mode_set_nofb(struct drm_crtc *crtc) else sig_cfg.clkflags = 0;

- sig_cfg.enable_pol = !(ipu_crtc->bus_flags & DRM_BUS_FLAG_DE_LOW); + sig_cfg.enable_pol = !(imx_encoder->bus_flags & DRM_BUS_FLAG_DE_LOW); /* Default to driving pixel data on negative clock edges */ - sig_cfg.clk_pol = !!(ipu_crtc->bus_flags & + sig_cfg.clk_pol = !!(imx_encoder->bus_flags & DRM_BUS_FLAG_PIXDATA_POSEDGE); - sig_cfg.bus_format = ipu_crtc->bus_format; + sig_cfg.bus_format = imx_encoder->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; + sig_cfg.hsync_pin = imx_encoder->di_hsync_pin; + sig_cfg.vsync_pin = imx_encoder->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); + imx_encoder->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 = drm_helper_crtc_mode_set, .mode_set_nofb = ipu_crtc_mode_set_nofb, .prepare = ipu_crtc_prepare, .commit = ipu_crtc_commit, @@ -382,14 +371,6 @@ 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; @@ -402,23 +383,9 @@ static void ipu_disable_vblank(struct drm_crtc *crtc) disable_irq_nosync(ipu_crtc->irq); }

-static int ipu_set_interface_pix_fmt(struct drm_crtc *crtc, - u32 bus_format, int hsync_pin, int vsync_pin, u32 bus_flags) -{ - struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc); - - ipu_crtc->bus_format = bus_format; - ipu_crtc->bus_flags = bus_flags; - ipu_crtc->di_hsync_pin = hsync_pin; - ipu_crtc->di_vsync_pin = vsync_pin; - - return 0; -} - static const struct imx_drm_crtc_helper_funcs ipu_crtc_helper_funcs = { .enable_vblank = ipu_enable_vblank, .disable_vblank = ipu_disable_vblank, - .set_interface_pix_fmt = ipu_set_interface_pix_fmt, .crtc_funcs = &ipu_crtc_funcs, .crtc_helper_funcs = &ipu_helper_funcs, }; diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c index fc1ff7c..79cfff5 100644 --- a/drivers/gpu/drm/imx/ipuv3-plane.c +++ b/drivers/gpu/drm/imx/ipuv3-plane.c @@ -14,6 +14,7 @@ */

#include <drm/drmP.h> +#include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_fb_cma_helper.h> #include <drm/drm_gem_cma_helper.h> @@ -374,31 +375,31 @@ static int ipu_plane_atomic_check(struct drm_plane *plane, struct drm_plane_state *old_state = plane->state; struct drm_crtc_state *crtc_state; struct device *dev = plane->dev->dev; - struct drm_crtc *crtc; 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; + return 0; + + if (!state->crtc) + return -EINVAL; + + crtc_state = + drm_atomic_get_existing_crtc_state(state->state, state->crtc); + if (WARN_ON(!crtc_state)) + return -EINVAL;

/* CRTC should be enabled */ - drm_for_each_crtc(crtc, plane->dev) { - if (drm_crtc_mask(crtc) == plane->possible_crtcs) { - if (!crtc->enabled) - return -EINVAL; - break; - } - } + if (!crtc_state->enable) + 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 */ diff --git a/drivers/gpu/drm/imx/parallel-display.c b/drivers/gpu/drm/imx/parallel-display.c index 9fe88c9..7374d82 100644 --- a/drivers/gpu/drm/imx/parallel-display.c +++ b/drivers/gpu/drm/imx/parallel-display.c @@ -27,15 +27,15 @@ #include "imx-drm.h"

#define con_to_imxpd(x) container_of(x, struct imx_parallel_display, connector) -#define enc_to_imxpd(x) container_of(x, struct imx_parallel_display, encoder) +#define imx_enc_to_imxpd(x) \ + container_of(x, struct imx_parallel_display, imx_encoder)

struct imx_parallel_display { struct drm_connector connector; - struct drm_encoder encoder; + struct imx_drm_encoder imx_encoder; struct device *dev; void *edid; int edid_len; - u32 bus_format; struct drm_display_mode mode; struct drm_panel *panel; }; @@ -57,8 +57,9 @@ static int imx_pd_connector_get_modes(struct drm_connector *connector) struct drm_display_info *di = &connector->display_info;

num_modes = imxpd->panel->funcs->get_modes(imxpd->panel); - if (!imxpd->bus_format && di->num_bus_formats) - imxpd->bus_format = di->bus_formats[0]; + if (!imxpd->imx_encoder.bus_format && di->num_bus_formats) + imxpd->imx_encoder.bus_format = di->bus_formats[0]; + imxpd->imx_encoder.bus_flags = di->bus_flags; if (num_modes > 0) return num_modes; } @@ -88,12 +89,13 @@ static struct drm_encoder *imx_pd_connector_best_encoder( { struct imx_parallel_display *imxpd = con_to_imxpd(connector);

- return &imxpd->encoder; + return &imxpd->imx_encoder.encoder; }

static void imx_pd_encoder_dpms(struct drm_encoder *encoder, int mode) { - struct imx_parallel_display *imxpd = enc_to_imxpd(encoder); + struct imx_drm_encoder *imx_encoder = enc_to_imx_enc(encoder); + struct imx_parallel_display *imxpd = imx_enc_to_imxpd(imx_encoder);

if (mode != DRM_MODE_DPMS_ON) drm_panel_disable(imxpd->panel); @@ -101,16 +103,10 @@ static void imx_pd_encoder_dpms(struct drm_encoder *encoder, int mode) drm_panel_enable(imxpd->panel); }

-static void imx_pd_encoder_prepare(struct drm_encoder *encoder) -{ - struct imx_parallel_display *imxpd = enc_to_imxpd(encoder); - imx_drm_set_bus_config(encoder, imxpd->bus_format, 2, 3, - imxpd->connector.display_info.bus_flags); -} - static void imx_pd_encoder_commit(struct drm_encoder *encoder) { - struct imx_parallel_display *imxpd = enc_to_imxpd(encoder); + struct imx_drm_encoder *imx_encoder = enc_to_imx_enc(encoder); + struct imx_parallel_display *imxpd = imx_enc_to_imxpd(imx_encoder);

drm_panel_prepare(imxpd->panel); drm_panel_enable(imxpd->panel); @@ -124,7 +120,8 @@ static void imx_pd_encoder_mode_set(struct drm_encoder *encoder,

static void imx_pd_encoder_disable(struct drm_encoder *encoder) { - struct imx_parallel_display *imxpd = enc_to_imxpd(encoder); + struct imx_drm_encoder *imx_encoder = enc_to_imx_enc(encoder); + struct imx_parallel_display *imxpd = imx_enc_to_imxpd(imx_encoder);

drm_panel_disable(imxpd->panel); drm_panel_unprepare(imxpd->panel); @@ -151,7 +148,6 @@ static const struct drm_encoder_funcs imx_pd_encoder_funcs = {

static const struct drm_encoder_helper_funcs imx_pd_encoder_helper_funcs = { .dpms = imx_pd_encoder_dpms, - .prepare = imx_pd_encoder_prepare, .commit = imx_pd_encoder_commit, .mode_set = imx_pd_encoder_mode_set, .disable = imx_pd_encoder_disable, @@ -162,7 +158,7 @@ static int imx_pd_register(struct drm_device *drm, { int ret;

- ret = imx_drm_encoder_parse_of(drm, &imxpd->encoder, + ret = imx_drm_encoder_parse_of(drm, &imxpd->imx_encoder.encoder, imxpd->dev->of_node); if (ret) return ret; @@ -174,9 +170,10 @@ static int imx_pd_register(struct drm_device *drm, */ imxpd->connector.dpms = DRM_MODE_DPMS_OFF;

- drm_encoder_helper_add(&imxpd->encoder, &imx_pd_encoder_helper_funcs); - drm_encoder_init(drm, &imxpd->encoder, &imx_pd_encoder_funcs, - DRM_MODE_ENCODER_NONE, NULL); + drm_encoder_helper_add(&imxpd->imx_encoder.encoder, + &imx_pd_encoder_helper_funcs); + drm_encoder_init(drm, &imxpd->imx_encoder.encoder, + &imx_pd_encoder_funcs, DRM_MODE_ENCODER_NONE, NULL);

drm_connector_helper_add(&imxpd->connector, &imx_pd_connector_helper_funcs); @@ -186,7 +183,8 @@ static int imx_pd_register(struct drm_device *drm, if (imxpd->panel) drm_panel_attach(imxpd->panel, &imxpd->connector);

- drm_mode_connector_attach_encoder(&imxpd->connector, &imxpd->encoder); + drm_mode_connector_attach_encoder(&imxpd->connector, + &imxpd->imx_encoder.encoder);

return 0; } @@ -199,6 +197,7 @@ static int imx_pd_bind(struct device *dev, struct device *master, void *data) const u8 *edidp; struct imx_parallel_display *imxpd; int ret; + u32 bus_format = 0; const char *fmt;

imxpd = devm_kzalloc(dev, sizeof(*imxpd), GFP_KERNEL); @@ -212,14 +211,17 @@ static int imx_pd_bind(struct device *dev, struct device *master, void *data) ret = of_property_read_string(np, "interface-pix-fmt", &fmt); if (!ret) { if (!strcmp(fmt, "rgb24")) - imxpd->bus_format = MEDIA_BUS_FMT_RGB888_1X24; + bus_format = MEDIA_BUS_FMT_RGB888_1X24; else if (!strcmp(fmt, "rgb565")) - imxpd->bus_format = MEDIA_BUS_FMT_RGB565_1X16; + bus_format = MEDIA_BUS_FMT_RGB565_1X16; else if (!strcmp(fmt, "bgr666")) - imxpd->bus_format = MEDIA_BUS_FMT_RGB666_1X18; + bus_format = MEDIA_BUS_FMT_RGB666_1X18; else if (!strcmp(fmt, "lvds666")) - imxpd->bus_format = MEDIA_BUS_FMT_RGB666_1X24_CPADHI; + bus_format = MEDIA_BUS_FMT_RGB666_1X24_CPADHI; } + imxpd->imx_encoder.bus_format = bus_format; + imxpd->imx_encoder.di_hsync_pin = 2; + imxpd->imx_encoder.di_vsync_pin = 3;

/* port@1 is the output port */ ep = of_graph_get_endpoint_by_regs(np, 1, -1); @@ -252,7 +254,7 @@ static void imx_pd_unbind(struct device *dev, struct device *master, { struct imx_parallel_display *imxpd = dev_get_drvdata(dev);

- imxpd->encoder.funcs->destroy(&imxpd->encoder); + imxpd->imx_encoder.encoder.funcs->destroy(&imxpd->imx_encoder.encoder); imxpd->connector.funcs->destroy(&imxpd->connector);

kfree(imxpd->edid);

To support generic atomic page flip, this patch customizes ->atomic_commit for nonblock commits.

Signed-off-by: Liu Ying gnuiyl@gmail.com --- v1->v2: * s/async/nonblock/ on this patch to address Daniel Vetter's comment. * Wait for pending commit on each CRTC for both block and nonblock atomic mode settings. This way, a block commit will not overwrite the hardware setting when a nonblock page flip is about to finish, so that the page flip may wait for vblank successfully.

drivers/gpu/drm/imx/imx-drm-core.c | 135 +++++++++++++++++++++++++++++++- drivers/gpu/drm/imx/ipuv3-crtc.c | 156 ++----------------------------------- 2 files changed, 142 insertions(+), 149 deletions(-)

diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c index 2a2ab8c..d2bb743 100644 --- a/drivers/gpu/drm/imx/imx-drm-core.c +++ b/drivers/gpu/drm/imx/imx-drm-core.c @@ -15,10 +15,14 @@ */ #include <linux/component.h> #include <linux/device.h> +#include <linux/dma-buf.h> #include <linux/fb.h> #include <linux/module.h> #include <linux/platform_device.h> +#include <linux/reservation.h> +#include <linux/wait.h> #include <drm/drmP.h> +#include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_fb_helper.h> #include <drm/drm_crtc_helper.h> @@ -48,6 +52,14 @@ struct imx_drm_device { struct imx_drm_crtc { struct drm_crtc *crtc; struct imx_drm_crtc_helper_funcs imx_drm_helper_funcs; + wait_queue_head_t commit_wait; + bool commit_pending; +}; + +struct imx_drm_commit { + struct work_struct work; + struct drm_device *dev; + struct drm_atomic_state *state; };

#if IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION) @@ -168,11 +180,130 @@ static void imx_drm_output_poll_changed(struct drm_device *drm) drm_fbdev_cma_hotplug_event(imxdrm->fbhelper); }

+static void imx_drm_atomic_complete(struct imx_drm_commit *commit) +{ + struct drm_device *dev = commit->dev; + struct imx_drm_device *imxdrm = dev->dev_private; + struct imx_drm_crtc *imx_crtc; + struct drm_atomic_state *old_state = commit->state; + struct drm_crtc *crtc; + struct drm_crtc_state *old_crtc_state; + struct drm_plane_state *plane_state; + struct drm_gem_cma_object *cma_obj; + struct fence *excl; + unsigned shared_count; + struct fence **shared; + unsigned int i, j; + int ret; + + /* Wait for fences. */ + for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) { + if (crtc->state->event) { + plane_state = crtc->primary->state; + cma_obj = drm_fb_cma_get_gem_obj(plane_state->fb, 0); + if (cma_obj->base.dma_buf) { + ret = reservation_object_get_fences_rcu( + cma_obj->base.dma_buf->resv, &excl, + &shared_count, &shared); + if (unlikely(ret)) + DRM_ERROR("failed to get fences " + "for buffer\n"); + + if (excl) { + fence_wait(excl, false); + fence_put(excl); + } + for (j = 0; j < shared_count; i++) { + fence_wait(shared[j], false); + fence_put(shared[j]); + } + } + } + } + + /* Apply the atomic update. */ + drm_atomic_helper_commit_modeset_disables(dev, old_state); + drm_atomic_helper_commit_modeset_enables(dev, old_state); + drm_atomic_helper_commit_planes(dev, old_state, false); + drm_atomic_helper_wait_for_vblanks(dev, old_state); + drm_atomic_helper_cleanup_planes(dev, old_state); + + for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) { + imx_crtc = imxdrm->crtc[i]; + + /* Complete the commit, wake up any waiter. */ + spin_lock(&imx_crtc->commit_wait.lock); + imx_crtc->commit_pending = false; + wake_up_all_locked(&imx_crtc->commit_wait); + spin_unlock(&imx_crtc->commit_wait.lock); + } + + drm_atomic_state_free(old_state); + + kfree(commit); +} + +static void imx_drm_atomic_work(struct work_struct *work) +{ + struct imx_drm_commit *commit = + container_of(work, struct imx_drm_commit, work); + + imx_drm_atomic_complete(commit); +} + +static int imx_drm_atomic_commit(struct drm_device *dev, + struct drm_atomic_state *state, bool nonblock) +{ + struct imx_drm_device *imxdrm = dev->dev_private; + struct imx_drm_crtc *imx_crtc; + struct imx_drm_commit *commit; + struct drm_crtc *crtc; + struct drm_crtc_state *crtc_state; + unsigned int i; + int ret; + + commit = kzalloc(sizeof(*commit), GFP_KERNEL); + if (commit == NULL) + return -ENOMEM; + + commit->dev = dev; + commit->state = state; + + for_each_crtc_in_state(state, crtc, crtc_state, i) { + imx_crtc = imxdrm->crtc[i]; + + spin_lock(&imx_crtc->commit_wait.lock); + ret = wait_event_interruptible_locked( + imx_crtc->commit_wait, + !imx_crtc->commit_pending); + if (ret == 0) + imx_crtc->commit_pending = true; + spin_unlock(&imx_crtc->commit_wait.lock); + + if (ret) { + kfree(commit); + return ret; + } + } + + if (nonblock) + INIT_WORK(&commit->work, imx_drm_atomic_work); + + drm_atomic_helper_swap_state(dev, state); + + if (nonblock) + schedule_work(&commit->work); + else + imx_drm_atomic_complete(commit); + + return 0; +} + static const struct drm_mode_config_funcs imx_drm_mode_config_funcs = { .fb_create = drm_fb_cma_create, .output_poll_changed = imx_drm_output_poll_changed, .atomic_check = drm_atomic_helper_check, - .atomic_commit = drm_atomic_helper_commit, + .atomic_commit = imx_drm_atomic_commit, };

/* @@ -307,6 +438,8 @@ int imx_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc, imx_drm_crtc->imx_drm_helper_funcs = *imx_drm_helper_funcs; imx_drm_crtc->crtc = crtc;

+ init_waitqueue_head(&imx_drm_crtc->commit_wait); + crtc->port = port;

imxdrm->crtc[imxdrm->pipes++] = imx_drm_crtc; diff --git a/drivers/gpu/drm/imx/ipuv3-crtc.c b/drivers/gpu/drm/imx/ipuv3-crtc.c index f20340f..7ee51db 100644 --- a/drivers/gpu/drm/imx/ipuv3-crtc.c +++ b/drivers/gpu/drm/imx/ipuv3-crtc.c @@ -24,8 +24,6 @@ #include <linux/fb.h> #include <linux/clk.h> #include <linux/errno.h> -#include <linux/reservation.h> -#include <linux/dma-buf.h> #include <drm/drm_gem_cma_helper.h> #include <drm/drm_fb_cma_helper.h>

@@ -35,23 +33,6 @@

#define DRIVER_DESC "i.MX IPUv3 Graphics"

-enum ipu_flip_status { - IPU_FLIP_NONE, - IPU_FLIP_PENDING, - IPU_FLIP_SUBMITTED, -}; - -struct ipu_flip_work { - struct work_struct unref_work; - struct drm_gem_object *bo; - struct drm_pending_vblank_event *page_flip_event; - struct work_struct fence_work; - struct ipu_crtc *crtc; - struct fence *excl; - unsigned shared_count; - struct fence **shared; -}; - struct ipu_crtc { struct device *dev; struct drm_crtc base; @@ -62,9 +43,6 @@ struct ipu_crtc {

struct ipu_dc *dc; struct ipu_di *di; - enum ipu_flip_status flip_state; - struct workqueue_struct *flip_queue; - struct ipu_flip_work *flip_work; int irq; };

@@ -92,150 +70,35 @@ static void ipu_crtc_disable(struct drm_crtc *crtc) drm_crtc_vblank_off(&ipu_crtc->base); }

-static void ipu_flip_unref_work_func(struct work_struct *__work) -{ - struct ipu_flip_work *work = - container_of(__work, struct ipu_flip_work, unref_work); - - drm_gem_object_unreference_unlocked(work->bo); - kfree(work); -} - -static void ipu_flip_fence_work_func(struct work_struct *__work) -{ - struct ipu_flip_work *work = - container_of(__work, struct ipu_flip_work, fence_work); - int i; - - /* wait for all fences attached to the FB obj to signal */ - if (work->excl) { - fence_wait(work->excl, false); - fence_put(work->excl); - } - for (i = 0; i < work->shared_count; i++) { - fence_wait(work->shared[i], false); - fence_put(work->shared[i]); - } - - work->crtc->flip_state = IPU_FLIP_SUBMITTED; -} - -static int ipu_page_flip(struct drm_crtc *crtc, - struct drm_framebuffer *fb, - struct drm_pending_vblank_event *event, - uint32_t page_flip_flags) -{ - struct drm_gem_cma_object *cma_obj = drm_fb_cma_get_gem_obj(fb, 0); - struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc); - struct ipu_flip_work *flip_work; - int ret; - - if (ipu_crtc->flip_state != IPU_FLIP_NONE) - return -EBUSY; - - ret = imx_drm_crtc_vblank_get(ipu_crtc->imx_crtc); - if (ret) { - dev_dbg(ipu_crtc->dev, "failed to acquire vblank counter\n"); - list_del(&event->base.link); - - return ret; - } - - flip_work = kzalloc(sizeof *flip_work, GFP_KERNEL); - if (!flip_work) { - ret = -ENOMEM; - goto put_vblank; - } - INIT_WORK(&flip_work->unref_work, ipu_flip_unref_work_func); - flip_work->page_flip_event = event; - - /* get BO backing the old framebuffer and take a reference */ - flip_work->bo = &drm_fb_cma_get_gem_obj(crtc->primary->fb, 0)->base; - drm_gem_object_reference(flip_work->bo); - - ipu_crtc->flip_work = flip_work; - /* - * If the object has a DMABUF attached, we need to wait on its fences - * if there are any. - */ - if (cma_obj->base.dma_buf) { - INIT_WORK(&flip_work->fence_work, ipu_flip_fence_work_func); - flip_work->crtc = ipu_crtc; - - ret = reservation_object_get_fences_rcu( - cma_obj->base.dma_buf->resv, &flip_work->excl, - &flip_work->shared_count, &flip_work->shared); - - if (unlikely(ret)) { - DRM_ERROR("failed to get fences for buffer\n"); - goto free_flip_work; - } - - /* No need to queue the worker if the are no fences */ - if (!flip_work->excl && !flip_work->shared_count) { - ipu_crtc->flip_state = IPU_FLIP_SUBMITTED; - } else { - ipu_crtc->flip_state = IPU_FLIP_PENDING; - queue_work(ipu_crtc->flip_queue, - &flip_work->fence_work); - } - } else { - ipu_crtc->flip_state = IPU_FLIP_SUBMITTED; - } - - if (crtc->primary->state) - drm_atomic_set_fb_for_plane(crtc->primary->state, fb); - - return 0; - -free_flip_work: - drm_gem_object_unreference_unlocked(flip_work->bo); - kfree(flip_work); - ipu_crtc->flip_work = NULL; -put_vblank: - imx_drm_crtc_vblank_put(ipu_crtc->imx_crtc); - - return ret; -} - static const struct drm_crtc_funcs ipu_crtc_funcs = { .set_config = drm_atomic_helper_set_config, .destroy = drm_crtc_cleanup, - .page_flip = ipu_page_flip, + .page_flip = drm_atomic_helper_page_flip, .reset = drm_atomic_helper_crtc_reset, .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state, .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, };

-static void ipu_crtc_handle_pageflip(struct ipu_crtc *ipu_crtc) +static void ipu_crtc_handle_pageflip(struct drm_crtc *crtc) { + struct drm_device *drm = crtc->dev; 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); + drm_crtc_send_vblank_event(crtc, crtc->state->event); + crtc->state->event = NULL; 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; + struct drm_crtc *crtc = &ipu_crtc->base;

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; - } + if (crtc->state->event) + ipu_crtc_handle_pageflip(crtc);

return IRQ_HANDLED; } @@ -458,8 +321,6 @@ static int ipu_crtc_init(struct ipu_crtc *ipu_crtc, /* Only enable IRQ when we actually need it to trigger work. */ disable_irq(ipu_crtc->irq);

- ipu_crtc->flip_queue = create_singlethread_workqueue("ipu-crtc-flip"); - return 0;

err_put_plane1_res: @@ -504,7 +365,6 @@ 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_put_resources(ipu_crtc); if (ipu_crtc->plane[1]) ipu_plane_put_resources(ipu_crtc->plane[1]);