diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-4.19/950-0518-drm-vc4-Add-an-overlay-plane-to-vc4-firmware-kms.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-4.19/950-0518-drm-vc4-Add-an-overlay-plane-to-vc4-firmware-kms.patch | 853 |
1 files changed, 853 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0518-drm-vc4-Add-an-overlay-plane-to-vc4-firmware-kms.patch b/target/linux/bcm27xx/patches-4.19/950-0518-drm-vc4-Add-an-overlay-plane-to-vc4-firmware-kms.patch new file mode 100644 index 0000000000..f3e2851087 --- /dev/null +++ b/target/linux/bcm27xx/patches-4.19/950-0518-drm-vc4-Add-an-overlay-plane-to-vc4-firmware-kms.patch @@ -0,0 +1,853 @@ +From 953d85d97f59691dccbbca743c478a8b01f92b59 Mon Sep 17 00:00:00 2001 +From: Dave Stevenson <dave.stevenson@raspberrypi.org> +Date: Wed, 27 Mar 2019 17:45:01 +0000 +Subject: [PATCH] drm: vc4: Add an overlay plane to vc4-firmware-kms + +This uses a new API that is exposed via the mailbox service +to stick an element straight on the screen using DispmanX. + +The primary and cursor planes have also been switched to using +the new plane API, and it supports layering based on the DRM +zpos parameter. + +Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org> +--- + drivers/gpu/drm/vc4/vc4_firmware_kms.c | 518 ++++++++++++++------- + drivers/gpu/drm/vc4/vc4_kms.c | 1 + + drivers/gpu/drm/vc4/vc_image_types.h | 143 ++++++ + include/soc/bcm2835/raspberrypi-firmware.h | 2 + + 4 files changed, 495 insertions(+), 169 deletions(-) + create mode 100644 drivers/gpu/drm/vc4/vc_image_types.h + +--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c ++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c +@@ -26,8 +26,46 @@ + #include "linux/of_device.h" + #include "vc4_drv.h" + #include "vc4_regs.h" ++#include "vc_image_types.h" + #include <soc/bcm2835/raspberrypi-firmware.h> + ++struct set_plane { ++ u8 display; ++ u8 plane_id; ++ u8 vc_image_type; ++ s8 layer; ++ ++ u16 width; ++ u16 height; ++ ++ u16 pitch; ++ u16 vpitch; ++ ++ u32 src_x; /* 16p16 */ ++ u32 src_y; /* 16p16 */ ++ ++ u32 src_w; /* 16p16 */ ++ u32 src_h; /* 16p16 */ ++ ++ s16 dst_x; ++ s16 dst_y; ++ ++ u16 dst_w; ++ u16 dst_h; ++ ++ u8 alpha; ++ u8 num_planes; ++ u8 is_vu; ++ u8 padding; ++ ++ u32 planes[4]; /* DMA address of each plane */ ++}; ++ ++struct mailbox_set_plane { ++ struct rpi_firmware_property_tag_header tag; ++ struct set_plane plane; ++}; ++ + struct fb_alloc_tags { + struct rpi_firmware_property_tag_header tag1; + u32 xres, yres; +@@ -47,6 +85,79 @@ struct fb_alloc_tags { + u32 layer; + }; + ++static const struct vc_image_format { ++ u32 drm; /* DRM_FORMAT_* */ ++ u32 vc_image; /* VC_IMAGE_* */ ++ u32 is_vu; ++} vc_image_formats[] = { ++ { ++ .drm = DRM_FORMAT_XRGB8888, ++ .vc_image = VC_IMAGE_XRGB8888, ++ }, ++ { ++ .drm = DRM_FORMAT_ARGB8888, ++ .vc_image = VC_IMAGE_ARGB8888, ++ }, ++/* ++ * FIXME: Need to resolve which DRM format goes to which vc_image format ++ * for the remaining RGBA and RGBX formats. ++ * { ++ * .drm = DRM_FORMAT_ABGR8888, ++ * .vc_image = VC_IMAGE_RGBA8888, ++ * }, ++ * { ++ * .drm = DRM_FORMAT_XBGR8888, ++ * .vc_image = VC_IMAGE_RGBA8888, ++ * }, ++ */ ++ { ++ .drm = DRM_FORMAT_RGB565, ++ .vc_image = VC_IMAGE_RGB565, ++ }, ++ { ++ .drm = DRM_FORMAT_RGB888, ++ .vc_image = VC_IMAGE_BGR888, ++ }, ++ { ++ .drm = DRM_FORMAT_BGR888, ++ .vc_image = VC_IMAGE_RGB888, ++ }, ++ { ++ .drm = DRM_FORMAT_YUV422, ++ .vc_image = VC_IMAGE_YUV422PLANAR, ++ }, ++ { ++ .drm = DRM_FORMAT_YUV420, ++ .vc_image = VC_IMAGE_YUV420, ++ }, ++ { ++ .drm = DRM_FORMAT_YVU420, ++ .vc_image = VC_IMAGE_YUV420, ++ .is_vu = 1, ++ }, ++ { ++ .drm = DRM_FORMAT_NV12, ++ .vc_image = VC_IMAGE_YUV420SP, ++ }, ++ { ++ .drm = DRM_FORMAT_NV21, ++ .vc_image = VC_IMAGE_YUV420SP, ++ .is_vu = 1, ++ }, ++}; ++ ++static const struct vc_image_format *vc4_get_vc_image_fmt(u32 drm_format) ++{ ++ unsigned int i; ++ ++ for (i = 0; i < ARRAY_SIZE(vc_image_formats); i++) { ++ if (vc_image_formats[i].drm == drm_format) ++ return &vc_image_formats[i]; ++ } ++ ++ return NULL; ++} ++ + /* The firmware delivers a vblank interrupt to us through the SMI + * hardware, which has only this one register. + */ +@@ -113,6 +224,7 @@ struct vc4_fkms_plane { + struct fbinfo_s *fbinfo; + dma_addr_t fbinfo_bus_addr; + u32 pitch; ++ struct mailbox_set_plane mb; + }; + + static inline struct vc4_fkms_plane *to_vc4_fkms_plane(struct drm_plane *plane) +@@ -120,165 +232,183 @@ static inline struct vc4_fkms_plane *to_ + return (struct vc4_fkms_plane *)plane; + } + +-/* Turns the display on/off. */ +-static int vc4_plane_set_primary_blank(struct drm_plane *plane, bool blank) ++static int vc4_plane_set_blank(struct drm_plane *plane, bool blank) + { + struct vc4_dev *vc4 = to_vc4_dev(plane->dev); ++ struct vc4_fkms_plane *vc4_plane = to_vc4_fkms_plane(plane); ++ struct mailbox_set_plane blank_mb = { ++ .tag = { RPI_FIRMWARE_SET_PLANE, sizeof(struct set_plane), 0 }, ++ .plane = { ++ .display = vc4_plane->mb.plane.display, ++ .plane_id = vc4_plane->mb.plane.plane_id, ++ } ++ }; ++ int ret; + +- u32 packet = blank; +- +- DRM_DEBUG_ATOMIC("[PLANE:%d:%s] primary plane %s", ++ DRM_DEBUG_ATOMIC("[PLANE:%d:%s] overlay plane %s", + plane->base.id, plane->name, + blank ? "blank" : "unblank"); + +- return rpi_firmware_property(vc4->firmware, +- RPI_FIRMWARE_FRAMEBUFFER_BLANK, +- &packet, sizeof(packet)); ++ if (blank) ++ ret = rpi_firmware_property_list(vc4->firmware, &blank_mb, ++ sizeof(blank_mb)); ++ else ++ ret = rpi_firmware_property_list(vc4->firmware, &vc4_plane->mb, ++ sizeof(vc4_plane->mb)); ++ ++ WARN_ONCE(ret, "%s: firmware call failed. Please update your firmware", ++ __func__); ++ return ret; + } + +-static void vc4_primary_plane_atomic_update(struct drm_plane *plane, +- struct drm_plane_state *old_state) ++static void vc4_plane_atomic_update(struct drm_plane *plane, ++ struct drm_plane_state *old_state) + { +- struct vc4_dev *vc4 = to_vc4_dev(plane->dev); + struct drm_plane_state *state = plane->state; + struct drm_framebuffer *fb = state->fb; + struct drm_gem_cma_object *bo = drm_fb_cma_get_gem_obj(fb, 0); +- u32 format = fb->format->format; +- struct fb_alloc_tags fbinfo = { +- .tag1 = { RPI_FIRMWARE_FRAMEBUFFER_SET_PHYSICAL_WIDTH_HEIGHT, +- 8, 0, }, +- .xres = state->crtc_w, +- .yres = state->crtc_h, +- .tag2 = { RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_WIDTH_HEIGHT, +- 8, 0, }, +- .xres_virtual = state->crtc_w, +- .yres_virtual = state->crtc_h, +- .tag3 = { RPI_FIRMWARE_FRAMEBUFFER_SET_DEPTH, 4, 0 }, +- .bpp = 32, +- .tag4 = { RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_OFFSET, 8, 0 }, +- .xoffset = 0, +- .yoffset = 0, +- .tag5 = { RPI_FIRMWARE_FRAMEBUFFER_ALLOCATE, 8, 0 }, +- .base = bo->paddr + fb->offsets[0], +- .screen_size = state->crtc_w * state->crtc_h * 4, +- .tag6 = { RPI_FIRMWARE_FRAMEBUFFER_SET_PITCH, 4, 0 }, +- .pitch = fb->pitches[0], +- .tag7 = { RPI_FIRMWARE_FRAMEBUFFER_SET_ALPHA_MODE, 4, 0 }, +- .alpha_mode = format == DRM_FORMAT_ARGB8888 ? 0 : 2, +- .tag8 = { RPI_FIRMWARE_FRAMEBUFFER_SET_LAYER, 4, 0 }, +- .layer = -127, +- }; +- u32 bpp = 32; +- int ret; ++ const struct drm_format_info *drm_fmt = fb->format; ++ const struct vc_image_format *vc_fmt = ++ vc4_get_vc_image_fmt(drm_fmt->format); ++ struct vc4_fkms_plane *vc4_plane = to_vc4_fkms_plane(plane); ++ struct mailbox_set_plane *mb = &vc4_plane->mb; ++ struct vc4_crtc *vc4_crtc = to_vc4_crtc(state->crtc); ++ int num_planes = fb->format->num_planes; ++ struct drm_display_mode *mode = &state->crtc->mode; + +- if (fb->modifier == DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED) +- fbinfo.bpp |= BIT(31); ++ mb->plane.vc_image_type = vc_fmt->vc_image; ++ mb->plane.width = fb->width; ++ mb->plane.height = fb->height; ++ mb->plane.pitch = fb->pitches[0]; ++ mb->plane.src_w = state->src_w; ++ mb->plane.src_h = state->src_h; ++ mb->plane.src_x = state->src_x; ++ mb->plane.src_y = state->src_y; ++ mb->plane.dst_w = state->crtc_w; ++ mb->plane.dst_h = state->crtc_h; ++ mb->plane.dst_x = state->crtc_x; ++ mb->plane.dst_y = state->crtc_y; ++ mb->plane.alpha = state->alpha >> 8; ++ mb->plane.layer = state->normalized_zpos ? ++ state->normalized_zpos : -127; ++ mb->plane.num_planes = num_planes; ++ mb->plane.is_vu = vc_fmt->is_vu; ++ mb->plane.planes[0] = bo->paddr + fb->offsets[0]; + +- DRM_DEBUG_ATOMIC("[PLANE:%d:%s] primary update %dx%d@%d +%d,%d 0x%pad/%d\n", ++ /* FIXME: If the dest rect goes off screen then clip the src rect so we ++ * don't have off-screen pixels. ++ */ ++ if (plane->type == DRM_PLANE_TYPE_CURSOR) { ++ /* There is no scaling on the cursor plane, therefore the calcs ++ * to alter the source crop as the cursor goes off the screen ++ * are simple. ++ */ ++ if (mb->plane.dst_x + mb->plane.dst_w > mode->hdisplay) { ++ mb->plane.dst_w = mode->hdisplay - mb->plane.dst_x; ++ mb->plane.src_w = (mode->hdisplay - mb->plane.dst_x) ++ << 16; ++ } ++ if (mb->plane.dst_y + mb->plane.dst_h > mode->vdisplay) { ++ mb->plane.dst_h = mode->vdisplay - mb->plane.dst_y; ++ mb->plane.src_h = (mode->vdisplay - mb->plane.dst_y) ++ << 16; ++ } ++ } ++ ++ if (num_planes > 1) { ++ /* Assume this must be YUV */ ++ /* Makes assumptions on the stride for the chroma planes as we ++ * can't easily plumb in non-standard pitches. ++ */ ++ mb->plane.planes[1] = bo->paddr + fb->offsets[1]; ++ if (num_planes > 2) ++ mb->plane.planes[2] = bo->paddr + fb->offsets[2]; ++ else ++ mb->plane.planes[2] = 0; ++ ++ /* Special case the YUV420 with U and V as line interleaved ++ * planes as we have special handling for that case. ++ */ ++ if (num_planes == 3 && ++ (fb->offsets[2] - fb->offsets[1]) == fb->pitches[1]) ++ mb->plane.vc_image_type = VC_IMAGE_YUV420_S; ++ } else { ++ mb->plane.planes[1] = 0; ++ mb->plane.planes[2] = 0; ++ } ++ mb->plane.planes[3] = 0; ++ ++ switch (fb->modifier) { ++ case DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED: ++ switch (mb->plane.vc_image_type) { ++ case VC_IMAGE_RGBX32: ++ mb->plane.vc_image_type = VC_IMAGE_TF_RGBX32; ++ break; ++ case VC_IMAGE_RGBA32: ++ mb->plane.vc_image_type = VC_IMAGE_TF_RGBA32; ++ break; ++ case VC_IMAGE_RGB565: ++ mb->plane.vc_image_type = VC_IMAGE_TF_RGB565; ++ break; ++ } ++ break; ++ case DRM_FORMAT_MOD_BROADCOM_SAND128: ++ mb->plane.vc_image_type = VC_IMAGE_YUV_UV; ++ mb->plane.pitch = fourcc_mod_broadcom_param(fb->modifier); ++ break; ++ } ++ ++ if (vc4_crtc) { ++ mb->plane.dst_x += vc4_crtc->overscan[0]; ++ mb->plane.dst_y += vc4_crtc->overscan[1]; ++ } ++ ++ DRM_DEBUG_ATOMIC("[PLANE:%d:%s] plane update %dx%d@%d +dst(%d,%d, %d,%d) +src(%d,%d, %d,%d) 0x%08x/%08x/%08x/%d, alpha %u zpos %u\n", + plane->base.id, plane->name, +- state->crtc_w, +- state->crtc_h, +- bpp, ++ mb->plane.width, ++ mb->plane.height, ++ mb->plane.vc_image_type, + state->crtc_x, + state->crtc_y, +- &fbinfo.base, +- fb->pitches[0]); +- +- ret = rpi_firmware_property_list(vc4->firmware, &fbinfo, +- sizeof(fbinfo)); +- WARN_ON_ONCE(fbinfo.pitch != fb->pitches[0]); +- WARN_ON_ONCE(fbinfo.base != bo->paddr + fb->offsets[0]); +- +- /* If the CRTC is on (or going to be on) and we're enabled, ++ state->crtc_w, ++ state->crtc_h, ++ mb->plane.src_x, ++ mb->plane.src_y, ++ mb->plane.src_w, ++ mb->plane.src_h, ++ mb->plane.planes[0], ++ mb->plane.planes[1], ++ mb->plane.planes[2], ++ fb->pitches[0], ++ state->alpha, ++ state->normalized_zpos); ++ ++ /* ++ * Do NOT set now, as we haven't checked if the crtc is active or not. ++ * Set from vc4_plane_set_blank instead. ++ * ++ * If the CRTC is on (or going to be on) and we're enabled, + * then unblank. Otherwise, stay blank until CRTC enable. +- */ ++ */ + if (state->crtc->state->active) +- vc4_plane_set_primary_blank(plane, false); ++ vc4_plane_set_blank(plane, false); + } + +-static void vc4_primary_plane_atomic_disable(struct drm_plane *plane, +- struct drm_plane_state *old_state) ++static void vc4_plane_atomic_disable(struct drm_plane *plane, ++ struct drm_plane_state *old_state) + { +- vc4_plane_set_primary_blank(plane, true); +-} +- +-static void vc4_cursor_plane_atomic_update(struct drm_plane *plane, +- struct drm_plane_state *old_state) +-{ +- struct vc4_dev *vc4 = to_vc4_dev(plane->dev); ++ //struct vc4_dev *vc4 = to_vc4_dev(plane->dev); + struct drm_plane_state *state = plane->state; +- struct vc4_crtc *vc4_crtc = to_vc4_crtc(state->crtc); +- struct drm_framebuffer *fb = state->fb; +- struct drm_gem_cma_object *bo = drm_fb_cma_get_gem_obj(fb, 0); +- dma_addr_t addr = bo->paddr + fb->offsets[0]; +- int ret; +- u32 packet_state[] = { +- state->crtc->state->active, +- state->crtc_x, +- state->crtc_y, +- 0 +- }; +- WARN_ON_ONCE(fb->pitches[0] != state->crtc_w * 4); ++ struct vc4_fkms_plane *vc4_plane = to_vc4_fkms_plane(plane); + +- DRM_DEBUG_ATOMIC("[PLANE:%d:%s] update %dx%d cursor at %d,%d (0x%pad/%d)", ++ DRM_DEBUG_ATOMIC("[PLANE:%d:%s] plane disable %dx%d@%d +%d,%d\n", + plane->base.id, plane->name, + state->crtc_w, + state->crtc_h, ++ vc4_plane->mb.plane.vc_image_type, + state->crtc_x, +- state->crtc_y, +- &addr, +- fb->pitches[0]); +- +- /* add on the top/left offsets when overscan is active */ +- if (vc4_crtc) { +- packet_state[1] += vc4_crtc->overscan[0]; +- packet_state[2] += vc4_crtc->overscan[1]; +- } +- +- ret = rpi_firmware_property(vc4->firmware, +- RPI_FIRMWARE_SET_CURSOR_STATE, +- &packet_state, +- sizeof(packet_state)); +- if (ret || packet_state[0] != 0) +- DRM_ERROR("Failed to set cursor state: 0x%08x\n", packet_state[0]); +- +- /* Note: When the cursor contents change, the modesetting +- * driver calls drm_mode_cursor_univeral() with +- * DRM_MODE_CURSOR_BO, which means a new fb will be allocated. +- */ +- if (!old_state || +- state->crtc_w != old_state->crtc_w || +- state->crtc_h != old_state->crtc_h || +- fb != old_state->fb) { +- u32 packet_info[] = { state->crtc_w, state->crtc_h, +- 0, /* unused */ +- addr, +- 0, 0, /* hotx, hoty */}; +- +- ret = rpi_firmware_property(vc4->firmware, +- RPI_FIRMWARE_SET_CURSOR_INFO, +- &packet_info, +- sizeof(packet_info)); +- if (ret || packet_info[0] != 0) +- DRM_ERROR("Failed to set cursor info: 0x%08x\n", packet_info[0]); +- } +-} +- +-static void vc4_cursor_plane_atomic_disable(struct drm_plane *plane, +- struct drm_plane_state *old_state) +-{ +- struct vc4_dev *vc4 = to_vc4_dev(plane->dev); +- u32 packet_state[] = { false, 0, 0, 0 }; +- int ret; +- +- DRM_DEBUG_ATOMIC("[PLANE:%d:%s] disabling cursor", plane->base.id, plane->name); +- +- ret = rpi_firmware_property(vc4->firmware, +- RPI_FIRMWARE_SET_CURSOR_STATE, +- &packet_state, +- sizeof(packet_state)); +- if (ret || packet_state[0] != 0) +- DRM_ERROR("Failed to set cursor state: 0x%08x\n", packet_state[0]); ++ state->crtc_y); ++ vc4_plane_set_blank(plane, true); + } + + static int vc4_plane_atomic_check(struct drm_plane *plane, +@@ -301,6 +431,7 @@ static bool vc4_fkms_format_mod_supporte + switch (format) { + case DRM_FORMAT_XRGB8888: + case DRM_FORMAT_ARGB8888: ++ case DRM_FORMAT_RGB565: + switch (modifier) { + case DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED: + case DRM_FORMAT_MOD_LINEAR: +@@ -309,8 +440,22 @@ static bool vc4_fkms_format_mod_supporte + default: + return false; + } ++ case DRM_FORMAT_NV12: ++ case DRM_FORMAT_NV21: ++ switch (fourcc_mod_broadcom_mod(modifier)) { ++ case DRM_FORMAT_MOD_LINEAR: ++ case DRM_FORMAT_MOD_BROADCOM_SAND128: ++ return true; ++ default: ++ return false; ++ } ++ case DRM_FORMAT_RGB888: ++ case DRM_FORMAT_BGR888: ++ case DRM_FORMAT_YUV422: ++ case DRM_FORMAT_YUV420: ++ case DRM_FORMAT_YVU420: + default: +- return false; ++ return (modifier == DRM_FORMAT_MOD_LINEAR); + } + } + +@@ -325,31 +470,24 @@ static const struct drm_plane_funcs vc4_ + .format_mod_supported = vc4_fkms_format_mod_supported, + }; + +-static const struct drm_plane_helper_funcs vc4_primary_plane_helper_funcs = { +- .prepare_fb = drm_gem_fb_prepare_fb, +- .cleanup_fb = NULL, +- .atomic_check = vc4_plane_atomic_check, +- .atomic_update = vc4_primary_plane_atomic_update, +- .atomic_disable = vc4_primary_plane_atomic_disable, +-}; +- +-static const struct drm_plane_helper_funcs vc4_cursor_plane_helper_funcs = { ++static const struct drm_plane_helper_funcs vc4_plane_helper_funcs = { + .prepare_fb = drm_gem_fb_prepare_fb, + .cleanup_fb = NULL, + .atomic_check = vc4_plane_atomic_check, +- .atomic_update = vc4_cursor_plane_atomic_update, +- .atomic_disable = vc4_cursor_plane_atomic_disable, ++ .atomic_update = vc4_plane_atomic_update, ++ .atomic_disable = vc4_plane_atomic_disable, + }; + + static struct drm_plane *vc4_fkms_plane_init(struct drm_device *dev, +- enum drm_plane_type type) ++ enum drm_plane_type type, ++ u8 plane_id) + { +- /* Primary and cursor planes only */ + struct drm_plane *plane = NULL; + struct vc4_fkms_plane *vc4_plane; +- u32 formats[] = {DRM_FORMAT_ARGB8888, DRM_FORMAT_XRGB8888}; ++ u32 formats[ARRAY_SIZE(vc_image_formats)]; ++ unsigned int default_zpos; ++ u32 num_formats = 0; + int ret = 0; +- bool primary = (type == DRM_PLANE_TYPE_PRIMARY); + static const uint64_t modifiers[] = { + DRM_FORMAT_MOD_LINEAR, + /* VC4_T_TILED should come after linear, because we +@@ -358,6 +496,7 @@ static struct drm_plane *vc4_fkms_plane_ + DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED, + DRM_FORMAT_MOD_INVALID, + }; ++ int i; + + vc4_plane = devm_kzalloc(dev->dev, sizeof(*vc4_plane), + GFP_KERNEL); +@@ -366,19 +505,48 @@ static struct drm_plane *vc4_fkms_plane_ + goto fail; + } + ++ for (i = 0; i < ARRAY_SIZE(vc_image_formats); i++) ++ formats[num_formats++] = vc_image_formats[i].drm; ++ + plane = &vc4_plane->base; + ret = drm_universal_plane_init(dev, plane, 0xff, + &vc4_plane_funcs, +- formats, primary ? 2 : 1, modifiers, +- type, primary ? "primary" : "cursor"); ++ formats, num_formats, modifiers, ++ type, NULL); + +- if (type == DRM_PLANE_TYPE_PRIMARY) +- drm_plane_helper_add(plane, &vc4_primary_plane_helper_funcs); +- else +- drm_plane_helper_add(plane, &vc4_cursor_plane_helper_funcs); ++ drm_plane_helper_add(plane, &vc4_plane_helper_funcs); + + drm_plane_create_alpha_property(plane); + ++ /* ++ * Default frame buffer setup is with FB on -127, and raspistill etc ++ * tend to drop overlays on layer 2. Cursor plane was on layer +127. ++ * ++ * For F-KMS the mailbox call allows for a s8. ++ * Remap zpos 0 to -127 for the background layer, but leave all the ++ * other layers as requested by KMS. ++ */ ++ switch (type) { ++ case DRM_PLANE_TYPE_PRIMARY: ++ default_zpos = 0; ++ break; ++ case DRM_PLANE_TYPE_OVERLAY: ++ default_zpos = 1; ++ break; ++ case DRM_PLANE_TYPE_CURSOR: ++ default_zpos = 2; ++ break; ++ } ++ drm_plane_create_zpos_property(plane, default_zpos, 0, 127); ++ ++ /* Prepare the static elements of the mailbox structure */ ++ vc4_plane->mb.tag.tag = RPI_FIRMWARE_SET_PLANE; ++ vc4_plane->mb.tag.buf_size = sizeof(struct set_plane); ++ vc4_plane->mb.tag.req_resp_size = 0; ++ vc4_plane->mb.plane.display = 0; ++ vc4_plane->mb.plane.plane_id = plane_id; ++ vc4_plane->mb.plane.layer = default_zpos ? default_zpos : -127; ++ + return plane; + fail: + if (plane) +@@ -400,19 +568,23 @@ static void vc4_crtc_disable(struct drm_ + * whether anything scans out at all, but the firmware doesn't + * give us a CRTC-level control for that. + */ +- vc4_cursor_plane_atomic_disable(crtc->cursor, crtc->cursor->state); +- vc4_plane_set_primary_blank(crtc->primary, true); ++ ++ vc4_plane_atomic_disable(crtc->cursor, crtc->cursor->state); ++ vc4_plane_atomic_disable(crtc->primary, crtc->primary->state); ++ ++ /* FIXME: Disable overlay planes */ + } + + static void vc4_crtc_enable(struct drm_crtc *crtc, struct drm_crtc_state *old_state) + { + /* Unblank the planes (if they're supposed to be displayed). */ ++ + if (crtc->primary->state->fb) +- vc4_plane_set_primary_blank(crtc->primary, false); +- if (crtc->cursor->state->fb) { +- vc4_cursor_plane_atomic_update(crtc->cursor, +- crtc->cursor->state); +- } ++ vc4_plane_set_blank(crtc->primary, false); ++ if (crtc->cursor->state->fb) ++ vc4_plane_set_blank(crtc->cursor, crtc->cursor->state); ++ ++ /* FIXME: Enable overlay planes */ + } + + static int vc4_crtc_atomic_check(struct drm_crtc *crtc, +@@ -672,8 +844,10 @@ static int vc4_fkms_bind(struct device * + struct vc4_crtc *vc4_crtc; + struct vc4_fkms_encoder *vc4_encoder; + struct drm_crtc *crtc; +- struct drm_plane *primary_plane, *cursor_plane, *destroy_plane, *temp; ++ struct drm_plane *primary_plane, *overlay_plane, *cursor_plane; ++ struct drm_plane *destroy_plane, *temp; + struct device_node *firmware_node; ++ u32 blank = 1; + int ret; + + vc4->firmware_kms = true; +@@ -702,20 +876,26 @@ static int vc4_fkms_bind(struct device * + if (IS_ERR(vc4_crtc->regs)) + return PTR_ERR(vc4_crtc->regs); + +- /* For now, we create just the primary and the legacy cursor +- * planes. We should be able to stack more planes on easily, +- * but to do that we would need to compute the bandwidth +- * requirement of the plane configuration, and reject ones +- * that will take too much. +- */ +- primary_plane = vc4_fkms_plane_init(drm, DRM_PLANE_TYPE_PRIMARY); ++ /* Blank the firmware provided framebuffer */ ++ rpi_firmware_property(vc4->firmware, ++ RPI_FIRMWARE_FRAMEBUFFER_BLANK, ++ &blank, sizeof(blank)); ++ ++ primary_plane = vc4_fkms_plane_init(drm, DRM_PLANE_TYPE_PRIMARY, 0); + if (IS_ERR(primary_plane)) { + dev_err(dev, "failed to construct primary plane\n"); + ret = PTR_ERR(primary_plane); + goto err; + } + +- cursor_plane = vc4_fkms_plane_init(drm, DRM_PLANE_TYPE_CURSOR); ++ overlay_plane = vc4_fkms_plane_init(drm, DRM_PLANE_TYPE_OVERLAY, 1); ++ if (IS_ERR(overlay_plane)) { ++ dev_err(dev, "failed to construct overlay plane\n"); ++ ret = PTR_ERR(overlay_plane); ++ goto err; ++ } ++ ++ cursor_plane = vc4_fkms_plane_init(drm, DRM_PLANE_TYPE_CURSOR, 2); + if (IS_ERR(cursor_plane)) { + dev_err(dev, "failed to construct cursor plane\n"); + ret = PTR_ERR(cursor_plane); +--- a/drivers/gpu/drm/vc4/vc4_kms.c ++++ b/drivers/gpu/drm/vc4/vc4_kms.c +@@ -435,6 +435,7 @@ int vc4_kms_load(struct drm_device *dev) + dev->mode_config.preferred_depth = 24; + dev->mode_config.async_page_flip = true; + dev->mode_config.allow_fb_modifiers = true; ++ dev->mode_config.normalize_zpos = true; + + drm_modeset_lock_init(&vc4->ctm_state_lock); + +--- /dev/null ++++ b/drivers/gpu/drm/vc4/vc_image_types.h +@@ -0,0 +1,143 @@ ++ ++/* ++ * Copyright (c) 2012, Broadcom Europe Ltd ++ * ++ * Values taken from vc_image_types.h released by Broadcom at ++ * https://github.com/raspberrypi/userland/blob/master/interface/vctypes/vc_image_types.h ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++enum { ++ VC_IMAGE_MIN = 0, //bounds for error checking ++ ++ VC_IMAGE_RGB565 = 1, ++ VC_IMAGE_1BPP, ++ VC_IMAGE_YUV420, ++ VC_IMAGE_48BPP, ++ VC_IMAGE_RGB888, ++ VC_IMAGE_8BPP, ++ /* 4bpp palettised image */ ++ VC_IMAGE_4BPP, ++ /* A separated format of 16 colour/light shorts followed by 16 z ++ * values ++ */ ++ VC_IMAGE_3D32, ++ /* 16 colours followed by 16 z values */ ++ VC_IMAGE_3D32B, ++ /* A separated format of 16 material/colour/light shorts followed by ++ * 16 z values ++ */ ++ VC_IMAGE_3D32MAT, ++ /* 32 bit format containing 18 bits of 6.6.6 RGB, 9 bits per short */ ++ VC_IMAGE_RGB2X9, ++ /* 32-bit format holding 18 bits of 6.6.6 RGB */ ++ VC_IMAGE_RGB666, ++ /* 4bpp palettised image with embedded palette */ ++ VC_IMAGE_PAL4_OBSOLETE, ++ /* 8bpp palettised image with embedded palette */ ++ VC_IMAGE_PAL8_OBSOLETE, ++ /* RGB888 with an alpha byte after each pixel */ ++ VC_IMAGE_RGBA32, ++ /* a line of Y (32-byte padded), a line of U (16-byte padded), and a ++ * line of V (16-byte padded) ++ */ ++ VC_IMAGE_YUV422, ++ /* RGB565 with a transparent patch */ ++ VC_IMAGE_RGBA565, ++ /* Compressed (4444) version of RGBA32 */ ++ VC_IMAGE_RGBA16, ++ /* VCIII codec format */ ++ VC_IMAGE_YUV_UV, ++ /* VCIII T-format RGBA8888 */ ++ VC_IMAGE_TF_RGBA32, ++ /* VCIII T-format RGBx8888 */ ++ VC_IMAGE_TF_RGBX32, ++ /* VCIII T-format float */ ++ VC_IMAGE_TF_FLOAT, ++ /* VCIII T-format RGBA4444 */ ++ VC_IMAGE_TF_RGBA16, ++ /* VCIII T-format RGB5551 */ ++ VC_IMAGE_TF_RGBA5551, ++ /* VCIII T-format RGB565 */ ++ VC_IMAGE_TF_RGB565, ++ /* VCIII T-format 8-bit luma and 8-bit alpha */ ++ VC_IMAGE_TF_YA88, ++ /* VCIII T-format 8 bit generic sample */ ++ VC_IMAGE_TF_BYTE, ++ /* VCIII T-format 8-bit palette */ ++ VC_IMAGE_TF_PAL8, ++ /* VCIII T-format 4-bit palette */ ++ VC_IMAGE_TF_PAL4, ++ /* VCIII T-format Ericsson Texture Compressed */ ++ VC_IMAGE_TF_ETC1, ++ /* RGB888 with R & B swapped */ ++ VC_IMAGE_BGR888, ++ /* RGB888 with R & B swapped, but with no pitch, i.e. no padding after ++ * each row of pixels ++ */ ++ VC_IMAGE_BGR888_NP, ++ /* Bayer image, extra defines which variant is being used */ ++ VC_IMAGE_BAYER, ++ /* General wrapper for codec images e.g. JPEG from camera */ ++ VC_IMAGE_CODEC, ++ /* VCIII codec format */ ++ VC_IMAGE_YUV_UV32, ++ /* VCIII T-format 8-bit luma */ ++ VC_IMAGE_TF_Y8, ++ /* VCIII T-format 8-bit alpha */ ++ VC_IMAGE_TF_A8, ++ /* VCIII T-format 16-bit generic sample */ ++ VC_IMAGE_TF_SHORT, ++ /* VCIII T-format 1bpp black/white */ ++ VC_IMAGE_TF_1BPP, ++ VC_IMAGE_OPENGL, ++ /* VCIII-B0 HVS YUV 4:4:4 interleaved samples */ ++ VC_IMAGE_YUV444I, ++ /* Y, U, & V planes separately (VC_IMAGE_YUV422 has them interleaved on ++ * a per line basis) ++ */ ++ VC_IMAGE_YUV422PLANAR, ++ /* 32bpp with 8bit alpha at MS byte, with R, G, B (LS byte) */ ++ VC_IMAGE_ARGB8888, ++ /* 32bpp with 8bit unused at MS byte, with R, G, B (LS byte) */ ++ VC_IMAGE_XRGB8888, ++ ++ /* interleaved 8 bit samples of Y, U, Y, V (4 flavours) */ ++ VC_IMAGE_YUV422YUYV, ++ VC_IMAGE_YUV422YVYU, ++ VC_IMAGE_YUV422UYVY, ++ VC_IMAGE_YUV422VYUY, ++ ++ /* 32bpp like RGBA32 but with unused alpha */ ++ VC_IMAGE_RGBX32, ++ /* 32bpp, corresponding to RGBA with unused alpha */ ++ VC_IMAGE_RGBX8888, ++ /* 32bpp, corresponding to BGRA with unused alpha */ ++ VC_IMAGE_BGRX8888, ++ ++ /* Y as a plane, then UV byte interleaved in plane with with same pitch, ++ * half height ++ */ ++ VC_IMAGE_YUV420SP, ++ ++ /* Y, U, & V planes separately 4:4:4 */ ++ VC_IMAGE_YUV444PLANAR, ++ ++ /* T-format 8-bit U - same as TF_Y8 buf from U plane */ ++ VC_IMAGE_TF_U8, ++ /* T-format 8-bit U - same as TF_Y8 buf from V plane */ ++ VC_IMAGE_TF_V8, ++ ++ /* YUV4:2:0 planar, 16bit values */ ++ VC_IMAGE_YUV420_16, ++ /* YUV4:2:0 codec format, 16bit values */ ++ VC_IMAGE_YUV_UV_16, ++ /* YUV4:2:0 with U,V in side-by-side format */ ++ VC_IMAGE_YUV420_S, ++ ++ VC_IMAGE_MAX, /* bounds for error checking */ ++ VC_IMAGE_FORCE_ENUM_16BIT = 0xffff, ++}; +--- a/include/soc/bcm2835/raspberrypi-firmware.h ++++ b/include/soc/bcm2835/raspberrypi-firmware.h +@@ -148,6 +148,8 @@ enum rpi_firmware_property_tag { + + RPI_FIRMWARE_VCHIQ_INIT = 0x00048010, + ++ RPI_FIRMWARE_SET_PLANE = 0x00048015, ++ + RPI_FIRMWARE_GET_COMMAND_LINE = 0x00050001, + RPI_FIRMWARE_GET_DMA_CHANNELS = 0x00060001, + }; |