diff options
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_plane.c')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_plane.c | 2475 |
1 files changed, 2102 insertions, 373 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c index fa6809d8b0fe..f00d4076ba07 100644 --- a/drivers/gpu/drm/vc4/vc4_plane.c +++ b/drivers/gpu/drm/vc4/vc4_plane.c @@ -1,9 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2015 Broadcom - * - * 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. */ /** @@ -20,130 +17,236 @@ #include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h> -#include <drm/drm_fb_cma_helper.h> -#include <drm/drm_plane_helper.h> +#include <drm/drm_atomic_uapi.h> +#include <drm/drm_blend.h> +#include <drm/drm_drv.h> +#include <drm/drm_fb_dma_helper.h> +#include <drm/drm_fourcc.h> +#include <drm/drm_framebuffer.h> +#include <drm/drm_gem_atomic_helper.h> +#include <drm/drm_print.h> + +#include "uapi/drm/vc4_drm.h" #include "vc4_drv.h" #include "vc4_regs.h" -enum vc4_scaling_mode { - VC4_SCALING_NONE, - VC4_SCALING_TPZ, - VC4_SCALING_PPF, -}; - -struct vc4_plane_state { - struct drm_plane_state base; - /* System memory copy of the display list for this element, computed - * at atomic_check time. - */ - u32 *dlist; - u32 dlist_size; /* Number of dwords allocated for the display list */ - u32 dlist_count; /* Number of used dwords in the display list. */ - - /* Offset in the dlist to various words, for pageflip or - * cursor updates. - */ - u32 pos0_offset; - u32 pos2_offset; - u32 ptr0_offset; - - /* Offset where the plane's dlist was last stored in the - * hardware at vc4_crtc_atomic_flush() time. - */ - u32 __iomem *hw_dlist; - - /* Clipped coordinates of the plane on the display. */ - int crtc_x, crtc_y, crtc_w, crtc_h; - /* Clipped area being scanned from in the FB. */ - u32 src_x, src_y; - - u32 src_w[2], src_h[2]; - - /* Scaling selection for the RGB/Y plane and the Cb/Cr planes. */ - enum vc4_scaling_mode x_scaling[2], y_scaling[2]; - bool is_unity; - bool is_yuv; - - /* Offset to start scanning out from the start of the plane's - * BO. - */ - u32 offsets[3]; - - /* Our allocation in LBM for temporary storage during scaling. */ - struct drm_mm_node lbm; -}; - -static inline struct vc4_plane_state * -to_vc4_plane_state(struct drm_plane_state *state) -{ - return (struct vc4_plane_state *)state; -} - static const struct hvs_format { u32 drm; /* DRM_FORMAT_* */ u32 hvs; /* HVS_FORMAT_* */ u32 pixel_order; - bool has_alpha; - bool flip_cbcr; + u32 pixel_order_hvs5; + bool hvs5_only; } hvs_formats[] = { { - .drm = DRM_FORMAT_XRGB8888, .hvs = HVS_PIXEL_FORMAT_RGBA8888, - .pixel_order = HVS_PIXEL_ORDER_ABGR, .has_alpha = false, + .drm = DRM_FORMAT_XRGB8888, + .hvs = HVS_PIXEL_FORMAT_RGBA8888, + .pixel_order = HVS_PIXEL_ORDER_ABGR, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_ARGB, + }, + { + .drm = DRM_FORMAT_ARGB8888, + .hvs = HVS_PIXEL_FORMAT_RGBA8888, + .pixel_order = HVS_PIXEL_ORDER_ABGR, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_ARGB, + }, + { + .drm = DRM_FORMAT_ABGR8888, + .hvs = HVS_PIXEL_FORMAT_RGBA8888, + .pixel_order = HVS_PIXEL_ORDER_ARGB, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_ABGR, }, { - .drm = DRM_FORMAT_ARGB8888, .hvs = HVS_PIXEL_FORMAT_RGBA8888, - .pixel_order = HVS_PIXEL_ORDER_ABGR, .has_alpha = true, + .drm = DRM_FORMAT_XBGR8888, + .hvs = HVS_PIXEL_FORMAT_RGBA8888, + .pixel_order = HVS_PIXEL_ORDER_ARGB, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_ABGR, }, { - .drm = DRM_FORMAT_ABGR8888, .hvs = HVS_PIXEL_FORMAT_RGBA8888, - .pixel_order = HVS_PIXEL_ORDER_ARGB, .has_alpha = true, + .drm = DRM_FORMAT_RGB565, + .hvs = HVS_PIXEL_FORMAT_RGB565, + .pixel_order = HVS_PIXEL_ORDER_XRGB, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_XRGB, }, { - .drm = DRM_FORMAT_XBGR8888, .hvs = HVS_PIXEL_FORMAT_RGBA8888, - .pixel_order = HVS_PIXEL_ORDER_ARGB, .has_alpha = false, + .drm = DRM_FORMAT_BGR565, + .hvs = HVS_PIXEL_FORMAT_RGB565, + .pixel_order = HVS_PIXEL_ORDER_XBGR, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_XBGR, }, { - .drm = DRM_FORMAT_RGB565, .hvs = HVS_PIXEL_FORMAT_RGB565, - .pixel_order = HVS_PIXEL_ORDER_XRGB, .has_alpha = false, + .drm = DRM_FORMAT_ARGB1555, + .hvs = HVS_PIXEL_FORMAT_RGBA5551, + .pixel_order = HVS_PIXEL_ORDER_ABGR, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_ARGB, }, { - .drm = DRM_FORMAT_BGR565, .hvs = HVS_PIXEL_FORMAT_RGB565, - .pixel_order = HVS_PIXEL_ORDER_XBGR, .has_alpha = false, + .drm = DRM_FORMAT_XRGB1555, + .hvs = HVS_PIXEL_FORMAT_RGBA5551, + .pixel_order = HVS_PIXEL_ORDER_ABGR, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_ARGB, }, { - .drm = DRM_FORMAT_ARGB1555, .hvs = HVS_PIXEL_FORMAT_RGBA5551, - .pixel_order = HVS_PIXEL_ORDER_ABGR, .has_alpha = true, + .drm = DRM_FORMAT_RGB888, + .hvs = HVS_PIXEL_FORMAT_RGB888, + .pixel_order = HVS_PIXEL_ORDER_XRGB, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_XRGB, }, { - .drm = DRM_FORMAT_XRGB1555, .hvs = HVS_PIXEL_FORMAT_RGBA5551, - .pixel_order = HVS_PIXEL_ORDER_ABGR, .has_alpha = false, + .drm = DRM_FORMAT_BGR888, + .hvs = HVS_PIXEL_FORMAT_RGB888, + .pixel_order = HVS_PIXEL_ORDER_XBGR, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_XBGR, }, { .drm = DRM_FORMAT_YUV422, .hvs = HVS_PIXEL_FORMAT_YCBCR_YUV422_3PLANE, + .pixel_order = HVS_PIXEL_ORDER_XYCBCR, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_XYCBCR, }, { .drm = DRM_FORMAT_YVU422, .hvs = HVS_PIXEL_FORMAT_YCBCR_YUV422_3PLANE, - .flip_cbcr = true, + .pixel_order = HVS_PIXEL_ORDER_XYCRCB, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_XYCRCB, + }, + { + .drm = DRM_FORMAT_YUV444, + .hvs = HVS_PIXEL_FORMAT_YCBCR_YUV422_3PLANE, + .pixel_order = HVS_PIXEL_ORDER_XYCBCR, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_XYCBCR, + }, + { + .drm = DRM_FORMAT_YVU444, + .hvs = HVS_PIXEL_FORMAT_YCBCR_YUV422_3PLANE, + .pixel_order = HVS_PIXEL_ORDER_XYCRCB, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_XYCRCB, }, { .drm = DRM_FORMAT_YUV420, .hvs = HVS_PIXEL_FORMAT_YCBCR_YUV420_3PLANE, + .pixel_order = HVS_PIXEL_ORDER_XYCBCR, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_XYCBCR, }, { .drm = DRM_FORMAT_YVU420, .hvs = HVS_PIXEL_FORMAT_YCBCR_YUV420_3PLANE, - .flip_cbcr = true, + .pixel_order = HVS_PIXEL_ORDER_XYCRCB, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_XYCRCB, }, { .drm = DRM_FORMAT_NV12, .hvs = HVS_PIXEL_FORMAT_YCBCR_YUV420_2PLANE, + .pixel_order = HVS_PIXEL_ORDER_XYCBCR, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_XYCBCR, + }, + { + .drm = DRM_FORMAT_NV21, + .hvs = HVS_PIXEL_FORMAT_YCBCR_YUV420_2PLANE, + .pixel_order = HVS_PIXEL_ORDER_XYCRCB, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_XYCRCB, }, { .drm = DRM_FORMAT_NV16, .hvs = HVS_PIXEL_FORMAT_YCBCR_YUV422_2PLANE, + .pixel_order = HVS_PIXEL_ORDER_XYCBCR, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_XYCBCR, + }, + { + .drm = DRM_FORMAT_NV61, + .hvs = HVS_PIXEL_FORMAT_YCBCR_YUV422_2PLANE, + .pixel_order = HVS_PIXEL_ORDER_XYCRCB, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_XYCRCB, + }, + { + .drm = DRM_FORMAT_P030, + .hvs = HVS_PIXEL_FORMAT_YCBCR_10BIT, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_XYCBCR, + .hvs5_only = true, + }, + { + .drm = DRM_FORMAT_XRGB2101010, + .hvs = HVS_PIXEL_FORMAT_RGBA1010102, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_ARGB, + .hvs5_only = true, + }, + { + .drm = DRM_FORMAT_ARGB2101010, + .hvs = HVS_PIXEL_FORMAT_RGBA1010102, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_ARGB, + .hvs5_only = true, + }, + { + .drm = DRM_FORMAT_ABGR2101010, + .hvs = HVS_PIXEL_FORMAT_RGBA1010102, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_ABGR, + .hvs5_only = true, + }, + { + .drm = DRM_FORMAT_XBGR2101010, + .hvs = HVS_PIXEL_FORMAT_RGBA1010102, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_ABGR, + .hvs5_only = true, + }, + { + .drm = DRM_FORMAT_RGB332, + .hvs = HVS_PIXEL_FORMAT_RGB332, + .pixel_order = HVS_PIXEL_ORDER_ARGB, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_ARGB, + }, + { + .drm = DRM_FORMAT_BGR233, + .hvs = HVS_PIXEL_FORMAT_RGB332, + .pixel_order = HVS_PIXEL_ORDER_ABGR, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_ABGR, + }, + { + .drm = DRM_FORMAT_XRGB4444, + .hvs = HVS_PIXEL_FORMAT_RGBA4444, + .pixel_order = HVS_PIXEL_ORDER_ABGR, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_ARGB, + }, + { + .drm = DRM_FORMAT_ARGB4444, + .hvs = HVS_PIXEL_FORMAT_RGBA4444, + .pixel_order = HVS_PIXEL_ORDER_ABGR, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_ARGB, + }, + { + .drm = DRM_FORMAT_XBGR4444, + .hvs = HVS_PIXEL_FORMAT_RGBA4444, + .pixel_order = HVS_PIXEL_ORDER_ARGB, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_ABGR, + }, + { + .drm = DRM_FORMAT_ABGR4444, + .hvs = HVS_PIXEL_FORMAT_RGBA4444, + .pixel_order = HVS_PIXEL_ORDER_ARGB, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_ABGR, + }, + { + .drm = DRM_FORMAT_BGRX4444, + .hvs = HVS_PIXEL_FORMAT_RGBA4444, + .pixel_order = HVS_PIXEL_ORDER_RGBA, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_BGRA, + }, + { + .drm = DRM_FORMAT_BGRA4444, + .hvs = HVS_PIXEL_FORMAT_RGBA4444, + .pixel_order = HVS_PIXEL_ORDER_RGBA, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_BGRA, + }, + { + .drm = DRM_FORMAT_RGBX4444, + .hvs = HVS_PIXEL_FORMAT_RGBA4444, + .pixel_order = HVS_PIXEL_ORDER_BGRA, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_RGBA, + }, + { + .drm = DRM_FORMAT_RGBA4444, + .hvs = HVS_PIXEL_FORMAT_RGBA4444, + .pixel_order = HVS_PIXEL_ORDER_BGRA, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_RGBA, }, }; @@ -161,22 +264,25 @@ static const struct hvs_format *vc4_get_hvs_format(u32 drm_format) static enum vc4_scaling_mode vc4_get_scaling_mode(u32 src, u32 dst) { - if (dst > src) + if (dst == src >> 16) + return VC4_SCALING_NONE; + if (3 * dst >= 2 * (src >> 16)) return VC4_SCALING_PPF; - else if (dst < src) - return VC4_SCALING_TPZ; else - return VC4_SCALING_NONE; + return VC4_SCALING_TPZ; } static bool plane_enabled(struct drm_plane_state *state) { - return state->fb && state->crtc; + return state->fb && !WARN_ON(!state->crtc); } static struct drm_plane_state *vc4_plane_duplicate_state(struct drm_plane *plane) { + struct vc4_dev *vc4 = to_vc4_dev(plane->dev); + struct vc4_hvs *hvs = vc4->hvs; struct vc4_plane_state *vc4_state; + unsigned int i; if (WARN_ON(!plane->state)) return NULL; @@ -187,6 +293,13 @@ static struct drm_plane_state *vc4_plane_duplicate_state(struct drm_plane *plane memset(&vc4_state->lbm, 0, sizeof(vc4_state->lbm)); + for (i = 0; i < DRM_FORMAT_MAX_PLANES; i++) { + if (vc4_state->upm_handle[i]) + refcount_inc(&hvs->upm_refcounts[vc4_state->upm_handle[i]].refcount); + } + + vc4_state->dlist_initialized = 0; + __drm_atomic_helper_plane_duplicate_state(plane, &vc4_state->base); if (vc4_state->dlist) { @@ -203,18 +316,47 @@ static struct drm_plane_state *vc4_plane_duplicate_state(struct drm_plane *plane return &vc4_state->base; } +static void vc4_plane_release_upm_ida(struct vc4_hvs *hvs, unsigned int upm_handle) +{ + struct vc4_upm_refcounts *refcount = &hvs->upm_refcounts[upm_handle]; + unsigned long irqflags; + + spin_lock_irqsave(&hvs->mm_lock, irqflags); + drm_mm_remove_node(&refcount->upm); + spin_unlock_irqrestore(&hvs->mm_lock, irqflags); + refcount->upm.start = 0; + refcount->upm.size = 0; + refcount->size = 0; + + ida_free(&hvs->upm_handles, upm_handle); +} + static void vc4_plane_destroy_state(struct drm_plane *plane, struct drm_plane_state *state) { struct vc4_dev *vc4 = to_vc4_dev(plane->dev); + struct vc4_hvs *hvs = vc4->hvs; struct vc4_plane_state *vc4_state = to_vc4_plane_state(state); + unsigned int i; - if (vc4_state->lbm.allocated) { + if (drm_mm_node_allocated(&vc4_state->lbm)) { unsigned long irqflags; - spin_lock_irqsave(&vc4->hvs->mm_lock, irqflags); + spin_lock_irqsave(&hvs->mm_lock, irqflags); drm_mm_remove_node(&vc4_state->lbm); - spin_unlock_irqrestore(&vc4->hvs->mm_lock, irqflags); + spin_unlock_irqrestore(&hvs->mm_lock, irqflags); + } + + for (i = 0; i < DRM_FORMAT_MAX_PLANES; i++) { + struct vc4_upm_refcounts *refcount; + + if (!vc4_state->upm_handle[i]) + continue; + + refcount = &hvs->upm_refcounts[vc4_state->upm_handle[i]]; + + if (refcount_dec_and_test(&refcount->refcount)) + vc4_plane_release_upm_ida(hvs, vc4_state->upm_handle[i]); } kfree(vc4_state->dlist); @@ -227,21 +369,23 @@ static void vc4_plane_reset(struct drm_plane *plane) { struct vc4_plane_state *vc4_state; - WARN_ON(plane->state); + if (plane->state) + __drm_atomic_helper_plane_destroy_state(plane->state); + + kfree(plane->state); vc4_state = kzalloc(sizeof(*vc4_state), GFP_KERNEL); if (!vc4_state) return; - plane->state = &vc4_state->base; - vc4_state->base.plane = plane; + __drm_atomic_helper_plane_reset(plane, &vc4_state->base); } -static void vc4_dlist_write(struct vc4_plane_state *vc4_state, u32 val) +static void vc4_dlist_counter_increment(struct vc4_plane_state *vc4_state) { if (vc4_state->dlist_count == vc4_state->dlist_size) { u32 new_size = max(4u, vc4_state->dlist_count * 2); - u32 *new_dlist = kmalloc(new_size * 4, GFP_KERNEL); + u32 *new_dlist = kmalloc_array(new_size, 4, GFP_KERNEL); if (!new_dlist) return; @@ -252,7 +396,15 @@ static void vc4_dlist_write(struct vc4_plane_state *vc4_state, u32 val) vc4_state->dlist_size = new_size; } - vc4_state->dlist[vc4_state->dlist_count++] = val; + vc4_state->dlist_count++; +} + +static void vc4_dlist_write(struct vc4_plane_state *vc4_state, u32 val) +{ + unsigned int idx = vc4_state->dlist_count; + + vc4_dlist_counter_increment(vc4_state); + vc4_state->dlist[idx] = val; } /* Returns the scl0/scl1 field based on whether the dimensions need to @@ -290,50 +442,98 @@ static u32 vc4_get_scl_field(struct drm_plane_state *state, int plane) } } +static int vc4_plane_margins_adj(struct drm_plane_state *pstate) +{ + struct vc4_plane_state *vc4_pstate = to_vc4_plane_state(pstate); + unsigned int left, right, top, bottom, adjhdisplay, adjvdisplay; + struct drm_crtc_state *crtc_state; + + crtc_state = drm_atomic_get_new_crtc_state(pstate->state, + pstate->crtc); + + vc4_crtc_get_margins(crtc_state, &left, &right, &top, &bottom); + if (!left && !right && !top && !bottom) + return 0; + + if (left + right >= crtc_state->mode.hdisplay || + top + bottom >= crtc_state->mode.vdisplay) + return -EINVAL; + + adjhdisplay = crtc_state->mode.hdisplay - (left + right); + vc4_pstate->crtc_x = DIV_ROUND_CLOSEST(vc4_pstate->crtc_x * + adjhdisplay, + crtc_state->mode.hdisplay); + vc4_pstate->crtc_x += left; + if (vc4_pstate->crtc_x > crtc_state->mode.hdisplay - right) + vc4_pstate->crtc_x = crtc_state->mode.hdisplay - right; + + adjvdisplay = crtc_state->mode.vdisplay - (top + bottom); + vc4_pstate->crtc_y = DIV_ROUND_CLOSEST(vc4_pstate->crtc_y * + adjvdisplay, + crtc_state->mode.vdisplay); + vc4_pstate->crtc_y += top; + if (vc4_pstate->crtc_y > crtc_state->mode.vdisplay - bottom) + vc4_pstate->crtc_y = crtc_state->mode.vdisplay - bottom; + + vc4_pstate->crtc_w = DIV_ROUND_CLOSEST(vc4_pstate->crtc_w * + adjhdisplay, + crtc_state->mode.hdisplay); + vc4_pstate->crtc_h = DIV_ROUND_CLOSEST(vc4_pstate->crtc_h * + adjvdisplay, + crtc_state->mode.vdisplay); + + if (!vc4_pstate->crtc_w || !vc4_pstate->crtc_h) + return -EINVAL; + + return 0; +} + static int vc4_plane_setup_clipping_and_scaling(struct drm_plane_state *state) { - struct drm_plane *plane = state->plane; struct vc4_plane_state *vc4_state = to_vc4_plane_state(state); struct drm_framebuffer *fb = state->fb; - struct drm_gem_cma_object *bo = drm_fb_cma_get_gem_obj(fb, 0); - u32 subpixel_src_mask = (1 << 16) - 1; - u32 format = fb->format->format; int num_planes = fb->format->num_planes; - u32 h_subsample = 1; - u32 v_subsample = 1; - int i; - - for (i = 0; i < num_planes; i++) - vc4_state->offsets[i] = bo->paddr + fb->offsets[i]; - - /* We don't support subpixel source positioning for scaling. */ - if ((state->src_x & subpixel_src_mask) || - (state->src_y & subpixel_src_mask) || - (state->src_w & subpixel_src_mask) || - (state->src_h & subpixel_src_mask)) { + struct drm_crtc_state *crtc_state; + u32 h_subsample = fb->format->hsub; + u32 v_subsample = fb->format->vsub; + int ret; + + crtc_state = drm_atomic_get_new_crtc_state(state->state, state->crtc); + if (!crtc_state) { + DRM_DEBUG_KMS("Invalid crtc state\n"); return -EINVAL; } - vc4_state->src_x = state->src_x >> 16; - vc4_state->src_y = state->src_y >> 16; - vc4_state->src_w[0] = state->src_w >> 16; - vc4_state->src_h[0] = state->src_h >> 16; + ret = drm_atomic_helper_check_plane_state(state, crtc_state, 1, + INT_MAX, true, true); + if (ret) + return ret; - vc4_state->crtc_x = state->crtc_x; - vc4_state->crtc_y = state->crtc_y; - vc4_state->crtc_w = state->crtc_w; - vc4_state->crtc_h = state->crtc_h; + vc4_state->src_x = state->src.x1; + vc4_state->src_y = state->src.y1; + vc4_state->src_w[0] = state->src.x2 - vc4_state->src_x; + vc4_state->src_h[0] = state->src.y2 - vc4_state->src_y; + + vc4_state->crtc_x = state->dst.x1; + vc4_state->crtc_y = state->dst.y1; + vc4_state->crtc_w = state->dst.x2 - state->dst.x1; + vc4_state->crtc_h = state->dst.y2 - state->dst.y1; + + ret = vc4_plane_margins_adj(state); + if (ret) + return ret; vc4_state->x_scaling[0] = vc4_get_scaling_mode(vc4_state->src_w[0], vc4_state->crtc_w); vc4_state->y_scaling[0] = vc4_get_scaling_mode(vc4_state->src_h[0], vc4_state->crtc_h); + vc4_state->is_unity = (vc4_state->x_scaling[0] == VC4_SCALING_NONE && + vc4_state->y_scaling[0] == VC4_SCALING_NONE); + if (num_planes > 1) { vc4_state->is_yuv = true; - h_subsample = drm_format_horz_chroma_subsampling(format); - v_subsample = drm_format_vert_chroma_subsampling(format); vc4_state->src_w[1] = vc4_state->src_w[0] / h_subsample; vc4_state->src_h[1] = vc4_state->src_h[0] / v_subsample; @@ -344,54 +544,24 @@ static int vc4_plane_setup_clipping_and_scaling(struct drm_plane_state *state) vc4_get_scaling_mode(vc4_state->src_h[1], vc4_state->crtc_h); - /* YUV conversion requires that scaling be enabled, - * even on a plane that's otherwise 1:1. Choose TPZ - * for simplicity. + /* YUV conversion requires that horizontal scaling be enabled + * on the UV plane even if vc4_get_scaling_mode() returned + * VC4_SCALING_NONE (which can happen when the down-scaling + * ratio is 0.5). Let's force it to VC4_SCALING_PPF in this + * case. */ - if (vc4_state->x_scaling[0] == VC4_SCALING_NONE) - vc4_state->x_scaling[0] = VC4_SCALING_TPZ; - if (vc4_state->y_scaling[0] == VC4_SCALING_NONE) - vc4_state->y_scaling[0] = VC4_SCALING_TPZ; - } - - vc4_state->is_unity = (vc4_state->x_scaling[0] == VC4_SCALING_NONE && - vc4_state->y_scaling[0] == VC4_SCALING_NONE && - vc4_state->x_scaling[1] == VC4_SCALING_NONE && - vc4_state->y_scaling[1] == VC4_SCALING_NONE); - - /* No configuring scaling on the cursor plane, since it gets - non-vblank-synced updates, and scaling requires requires - LBM changes which have to be vblank-synced. - */ - if (plane->type == DRM_PLANE_TYPE_CURSOR && !vc4_state->is_unity) - return -EINVAL; + if (vc4_state->x_scaling[1] == VC4_SCALING_NONE) + vc4_state->x_scaling[1] = VC4_SCALING_PPF; - /* Clamp the on-screen start x/y to 0. The hardware doesn't - * support negative y, and negative x wastes bandwidth. - */ - if (vc4_state->crtc_x < 0) { - for (i = 0; i < num_planes; i++) { - u32 cpp = fb->format->cpp[i]; - u32 subs = ((i == 0) ? 1 : h_subsample); - - vc4_state->offsets[i] += (cpp * - (-vc4_state->crtc_x) / subs); - } - vc4_state->src_w[0] += vc4_state->crtc_x; - vc4_state->src_w[1] += vc4_state->crtc_x / h_subsample; - vc4_state->crtc_x = 0; - } - - if (vc4_state->crtc_y < 0) { - for (i = 0; i < num_planes; i++) { - u32 subs = ((i == 0) ? 1 : v_subsample); - - vc4_state->offsets[i] += (fb->pitches[i] * - (-vc4_state->crtc_y) / subs); - } - vc4_state->src_h[0] += vc4_state->crtc_y; - vc4_state->src_h[1] += vc4_state->crtc_y / v_subsample; - vc4_state->crtc_y = 0; + /* Similarly UV needs vertical scaling to be enabled. + * Without this a 1:1 scaled YUV422 plane isn't rendered. + */ + if (vc4_state->y_scaling[1] == VC4_SCALING_NONE) + vc4_state->y_scaling[1] = VC4_SCALING_PPF; + } else { + vc4_state->is_yuv = false; + vc4_state->x_scaling[1] = VC4_SCALING_NONE; + vc4_state->y_scaling[1] = VC4_SCALING_NONE; } return 0; @@ -399,9 +569,12 @@ static int vc4_plane_setup_clipping_and_scaling(struct drm_plane_state *state) static void vc4_write_tpz(struct vc4_plane_state *vc4_state, u32 src, u32 dst) { + struct vc4_dev *vc4 = to_vc4_dev(vc4_state->base.plane->dev); u32 scale, recip; - scale = (1 << 16) * src / dst; + WARN_ON_ONCE(vc4->gen > VC4_GEN_6_D); + + scale = src / dst; /* The specs note that while the reciprocal would be defined * as (1<<32)/scale, ~0 is close enough. @@ -409,35 +582,108 @@ static void vc4_write_tpz(struct vc4_plane_state *vc4_state, u32 src, u32 dst) recip = ~0 / scale; vc4_dlist_write(vc4_state, + /* + * The BCM2712 is lacking BIT(31) compared to + * the previous generations, but we don't use + * it. + */ VC4_SET_FIELD(scale, SCALER_TPZ0_SCALE) | VC4_SET_FIELD(0, SCALER_TPZ0_IPHASE)); vc4_dlist_write(vc4_state, VC4_SET_FIELD(recip, SCALER_TPZ1_RECIP)); } -static void vc4_write_ppf(struct vc4_plane_state *vc4_state, u32 src, u32 dst) +/* phase magnitude bits */ +#define PHASE_BITS 6 + +static void vc4_write_ppf(struct vc4_plane_state *vc4_state, u32 src, u32 dst, + u32 xy, int channel) { - u32 scale = (1 << 16) * src / dst; + struct vc4_dev *vc4 = to_vc4_dev(vc4_state->base.plane->dev); + u32 scale = src / dst; + s32 offset, offset2; + s32 phase; + + WARN_ON_ONCE(vc4->gen > VC4_GEN_6_D); + + /* + * Start the phase at 1/2 pixel from the 1st pixel at src_x. + * 1/4 pixel for YUV. + */ + if (channel) { + /* + * The phase is relative to scale_src->x, so shift it for + * display list's x value + */ + offset = (xy & 0x1ffff) >> (16 - PHASE_BITS) >> 1; + offset += -(1 << PHASE_BITS >> 2); + } else { + /* + * The phase is relative to scale_src->x, so shift it for + * display list's x value + */ + offset = (xy & 0xffff) >> (16 - PHASE_BITS); + offset += -(1 << PHASE_BITS >> 1); + + /* + * This is a kludge to make sure the scaling factors are + * consistent with YUV's luma scaling. We lose 1-bit precision + * because of this. + */ + scale &= ~1; + } + + /* + * There may be a also small error introduced by precision of scale. + * Add half of that as a compromise + */ + offset2 = src - dst * scale; + offset2 >>= 16 - PHASE_BITS; + phase = offset + (offset2 >> 1); + + /* Ensure +ve values don't touch the sign bit, then truncate negative values */ + if (phase >= 1 << PHASE_BITS) + phase = (1 << PHASE_BITS) - 1; + + phase &= SCALER_PPF_IPHASE_MASK; vc4_dlist_write(vc4_state, SCALER_PPF_AGC | VC4_SET_FIELD(scale, SCALER_PPF_SCALE) | - VC4_SET_FIELD(0, SCALER_PPF_IPHASE)); + /* + * The register layout documentation is slightly + * different to setup the phase in the BCM2712, + * but they seem equivalent. + */ + VC4_SET_FIELD(phase, SCALER_PPF_IPHASE)); } -static u32 vc4_lbm_size(struct drm_plane_state *state) +static u32 __vc4_lbm_size(struct drm_plane_state *state) { struct vc4_plane_state *vc4_state = to_vc4_plane_state(state); - /* This is the worst case number. One of the two sizes will - * be used depending on the scaling configuration. - */ - u32 pix_per_line = max(vc4_state->src_w[0], (u32)vc4_state->crtc_w); + struct vc4_dev *vc4 = to_vc4_dev(state->plane->dev); + u32 pix_per_line; u32 lbm; + /* LBM is not needed when there's no vertical scaling. */ + if (vc4_state->y_scaling[0] == VC4_SCALING_NONE && + vc4_state->y_scaling[1] == VC4_SCALING_NONE) + return 0; + + /* + * This can be further optimized in the RGB/YUV444 case if the PPF + * decimation factor is between 0.5 and 1.0 by using crtc_w. + * + * It's not an issue though, since in that case since src_w[0] is going + * to be greater than or equal to crtc_w. + */ + if (vc4_state->x_scaling[0] == VC4_SCALING_TPZ) + pix_per_line = vc4_state->crtc_w; + else + pix_per_line = vc4_state->src_w[0] >> 16; + if (!vc4_state->is_yuv) { - if (vc4_state->is_unity) - return 0; - else if (vc4_state->y_scaling[0] == VC4_SCALING_TPZ) + if (vc4_state->y_scaling[0] == VC4_SCALING_TPZ) lbm = pix_per_line * 8; else { /* In special cases, this multiplier might be 12. */ @@ -451,43 +697,509 @@ static u32 vc4_lbm_size(struct drm_plane_state *state) lbm = pix_per_line * 16; } - lbm = roundup(lbm, 32); + /* Align it to 64 or 128 (hvs5) bytes */ + lbm = roundup(lbm, vc4->gen == VC4_GEN_5 ? 128 : 64); + + /* Each "word" of the LBM memory contains 2 or 4 (hvs5) pixels */ + lbm /= vc4->gen == VC4_GEN_5 ? 4 : 2; return lbm; } +static unsigned int vc4_lbm_words_per_component(const struct drm_plane_state *state, + unsigned int channel) +{ + const struct vc4_plane_state *vc4_state = to_vc4_plane_state(state); + + switch (vc4_state->y_scaling[channel]) { + case VC4_SCALING_PPF: + return 4; + + case VC4_SCALING_TPZ: + return 2; + + default: + return 0; + } +} + +static unsigned int vc4_lbm_components(const struct drm_plane_state *state, + unsigned int channel) +{ + const struct drm_format_info *info = state->fb->format; + const struct vc4_plane_state *vc4_state = to_vc4_plane_state(state); + + if (vc4_state->y_scaling[channel] == VC4_SCALING_NONE) + return 0; + + if (info->is_yuv) + return channel ? 2 : 1; + + if (info->has_alpha) + return 4; + + return 3; +} + +static unsigned int vc4_lbm_channel_size(const struct drm_plane_state *state, + unsigned int channel) +{ + const struct drm_format_info *info = state->fb->format; + const struct vc4_plane_state *vc4_state = to_vc4_plane_state(state); + unsigned int channels_scaled = 0; + unsigned int components, words, wpc; + unsigned int width, lines; + unsigned int i; + + /* LBM is meant to use the smaller of source or dest width, but there + * is a issue with UV scaling that the size required for the second + * channel is based on the source width only. + */ + if (info->hsub > 1 && channel == 1) + width = state->src_w >> 16; + else + width = min(state->src_w >> 16, state->crtc_w); + width = round_up(width / info->hsub, 4); + + wpc = vc4_lbm_words_per_component(state, channel); + if (!wpc) + return 0; + + components = vc4_lbm_components(state, channel); + if (!components) + return 0; + + if (state->alpha != DRM_BLEND_ALPHA_OPAQUE && info->has_alpha) + components -= 1; + + words = width * wpc * components; + + lines = DIV_ROUND_UP(words, 128 / info->hsub); + + for (i = 0; i < 2; i++) + if (vc4_state->y_scaling[channel] != VC4_SCALING_NONE) + channels_scaled++; + + if (channels_scaled == 1) + lines = lines / 2; + + return lines; +} + +static unsigned int __vc6_lbm_size(const struct drm_plane_state *state) +{ + const struct drm_format_info *info = state->fb->format; + + if (info->hsub > 1) + return max(vc4_lbm_channel_size(state, 0), + vc4_lbm_channel_size(state, 1)); + else + return vc4_lbm_channel_size(state, 0); +} + +static u32 vc4_lbm_size(struct drm_plane_state *state) +{ + struct vc4_plane_state *vc4_state = to_vc4_plane_state(state); + struct vc4_dev *vc4 = to_vc4_dev(state->plane->dev); + + /* LBM is not needed when there's no vertical scaling. */ + if (vc4_state->y_scaling[0] == VC4_SCALING_NONE && + vc4_state->y_scaling[1] == VC4_SCALING_NONE) + return 0; + + if (vc4->gen >= VC4_GEN_6_C) + return __vc6_lbm_size(state); + else + return __vc4_lbm_size(state); +} + +static size_t vc6_upm_size(const struct drm_plane_state *state, + unsigned int plane) +{ + const struct vc4_plane_state *vc4_state = to_vc4_plane_state(state); + unsigned int stride = state->fb->pitches[plane]; + + /* + * TODO: This only works for raster formats, and is sub-optimal + * for buffers with a stride aligned on 32 bytes. + */ + unsigned int words_per_line = (stride + 62) / 32; + unsigned int fetch_region_size = words_per_line * 32; + unsigned int buffer_lines = 2 << vc4_state->upm_buffer_lines; + unsigned int buffer_size = fetch_region_size * buffer_lines; + + return ALIGN(buffer_size, HVS_UBM_WORD_SIZE); +} + static void vc4_write_scaling_parameters(struct drm_plane_state *state, int channel) { + struct vc4_dev *vc4 = to_vc4_dev(state->plane->dev); struct vc4_plane_state *vc4_state = to_vc4_plane_state(state); + WARN_ON_ONCE(vc4->gen > VC4_GEN_6_D); + /* Ch0 H-PPF Word 0: Scaling Parameters */ if (vc4_state->x_scaling[channel] == VC4_SCALING_PPF) { - vc4_write_ppf(vc4_state, - vc4_state->src_w[channel], vc4_state->crtc_w); + vc4_write_ppf(vc4_state, vc4_state->src_w[channel], + vc4_state->crtc_w, vc4_state->src_x, channel); } /* Ch0 V-PPF Words 0-1: Scaling Parameters, Context */ if (vc4_state->y_scaling[channel] == VC4_SCALING_PPF) { - vc4_write_ppf(vc4_state, - vc4_state->src_h[channel], vc4_state->crtc_h); + vc4_write_ppf(vc4_state, vc4_state->src_h[channel], + vc4_state->crtc_h, vc4_state->src_y, channel); vc4_dlist_write(vc4_state, 0xc0c0c0c0); } /* Ch0 H-TPZ Words 0-1: Scaling Parameters, Recip */ if (vc4_state->x_scaling[channel] == VC4_SCALING_TPZ) { - vc4_write_tpz(vc4_state, - vc4_state->src_w[channel], vc4_state->crtc_w); + vc4_write_tpz(vc4_state, vc4_state->src_w[channel], + vc4_state->crtc_w); } /* Ch0 V-TPZ Words 0-2: Scaling Parameters, Recip, Context */ if (vc4_state->y_scaling[channel] == VC4_SCALING_TPZ) { - vc4_write_tpz(vc4_state, - vc4_state->src_h[channel], vc4_state->crtc_h); + vc4_write_tpz(vc4_state, vc4_state->src_h[channel], + vc4_state->crtc_h); vc4_dlist_write(vc4_state, 0xc0c0c0c0); } } +static void vc4_plane_calc_load(struct drm_plane_state *state) +{ + unsigned int hvs_load_shift, vrefresh, i; + struct drm_framebuffer *fb = state->fb; + struct vc4_plane_state *vc4_state; + struct drm_crtc_state *crtc_state; + unsigned int vscale_factor; + + vc4_state = to_vc4_plane_state(state); + crtc_state = drm_atomic_get_new_crtc_state(state->state, state->crtc); + vrefresh = drm_mode_vrefresh(&crtc_state->adjusted_mode); + + /* The HVS is able to process 2 pixels/cycle when scaling the source, + * 4 pixels/cycle otherwise. + * Alpha blending step seems to be pipelined and it's always operating + * at 4 pixels/cycle, so the limiting aspect here seems to be the + * scaler block. + * HVS load is expressed in clk-cycles/sec (AKA Hz). + */ + if (vc4_state->x_scaling[0] != VC4_SCALING_NONE || + vc4_state->x_scaling[1] != VC4_SCALING_NONE || + vc4_state->y_scaling[0] != VC4_SCALING_NONE || + vc4_state->y_scaling[1] != VC4_SCALING_NONE) + hvs_load_shift = 1; + else + hvs_load_shift = 2; + + vc4_state->membus_load = 0; + vc4_state->hvs_load = 0; + for (i = 0; i < fb->format->num_planes; i++) { + /* Even if the bandwidth/plane required for a single frame is + * + * (vc4_state->src_w[i] >> 16) * (vc4_state->src_h[i] >> 16) * + * cpp * vrefresh + * + * when downscaling, we have to read more pixels per line in + * the time frame reserved for a single line, so the bandwidth + * demand can be punctually higher. To account for that, we + * calculate the down-scaling factor and multiply the plane + * load by this number. We're likely over-estimating the read + * demand, but that's better than under-estimating it. + */ + vscale_factor = DIV_ROUND_UP(vc4_state->src_h[i] >> 16, + vc4_state->crtc_h); + vc4_state->membus_load += (vc4_state->src_w[i] >> 16) * + (vc4_state->src_h[i] >> 16) * + vscale_factor * fb->format->cpp[i]; + vc4_state->hvs_load += vc4_state->crtc_h * vc4_state->crtc_w; + } + + vc4_state->hvs_load *= vrefresh; + vc4_state->hvs_load >>= hvs_load_shift; + vc4_state->membus_load *= vrefresh; +} + +static int vc4_plane_allocate_lbm(struct drm_plane_state *state) +{ + struct drm_device *drm = state->plane->dev; + struct vc4_dev *vc4 = to_vc4_dev(drm); + struct drm_plane *plane = state->plane; + struct vc4_plane_state *vc4_state = to_vc4_plane_state(state); + unsigned long irqflags; + u32 lbm_size; + + lbm_size = vc4_lbm_size(state); + if (!lbm_size) + return 0; + + /* + * NOTE: BCM2712 doesn't need to be aligned, since the size + * returned by vc4_lbm_size() is in words already. + */ + if (vc4->gen == VC4_GEN_5) + lbm_size = ALIGN(lbm_size, 64); + else if (vc4->gen == VC4_GEN_4) + lbm_size = ALIGN(lbm_size, 32); + + drm_dbg_driver(drm, "[PLANE:%d:%s] LBM Allocation Size: %u\n", + plane->base.id, plane->name, lbm_size); + + if (WARN_ON(!vc4_state->lbm_offset)) + return -EINVAL; + + /* Allocate the LBM memory that the HVS will use for temporary + * storage due to our scaling/format conversion. + */ + if (!drm_mm_node_allocated(&vc4_state->lbm)) { + int ret; + + spin_lock_irqsave(&vc4->hvs->mm_lock, irqflags); + ret = drm_mm_insert_node_generic(&vc4->hvs->lbm_mm, + &vc4_state->lbm, + lbm_size, 1, + 0, 0); + spin_unlock_irqrestore(&vc4->hvs->mm_lock, irqflags); + + if (ret) { + drm_err(drm, "Failed to allocate LBM entry: %d\n", ret); + return ret; + } + } else { + WARN_ON_ONCE(lbm_size != vc4_state->lbm.size); + } + + vc4_state->dlist[vc4_state->lbm_offset] = vc4_state->lbm.start; + + return 0; +} + +static int vc6_plane_allocate_upm(struct drm_plane_state *state) +{ + const struct drm_format_info *info = state->fb->format; + struct drm_device *drm = state->plane->dev; + struct vc4_dev *vc4 = to_vc4_dev(drm); + struct vc4_hvs *hvs = vc4->hvs; + struct vc4_plane_state *vc4_state = to_vc4_plane_state(state); + unsigned int i; + int ret; + + WARN_ON_ONCE(vc4->gen < VC4_GEN_6_C); + + vc4_state->upm_buffer_lines = SCALER6_PTR0_UPM_BUFF_SIZE_2_LINES; + + for (i = 0; i < info->num_planes; i++) { + struct vc4_upm_refcounts *refcount; + int upm_handle; + unsigned long irqflags; + size_t upm_size; + + upm_size = vc6_upm_size(state, i); + if (!upm_size) + return -EINVAL; + upm_handle = vc4_state->upm_handle[i]; + + if (upm_handle && + hvs->upm_refcounts[upm_handle].size == upm_size) { + /* Allocation is the same size as the previous user of + * the plane. Keep the allocation. + */ + vc4_state->upm_handle[i] = upm_handle; + } else { + if (upm_handle && + refcount_dec_and_test(&hvs->upm_refcounts[upm_handle].refcount)) { + vc4_plane_release_upm_ida(hvs, upm_handle); + vc4_state->upm_handle[i] = 0; + } + + upm_handle = ida_alloc_range(&hvs->upm_handles, 1, + VC4_NUM_UPM_HANDLES, + GFP_KERNEL); + if (upm_handle < 0) { + drm_dbg(drm, "Out of upm_handles\n"); + return upm_handle; + } + vc4_state->upm_handle[i] = upm_handle; + + refcount = &hvs->upm_refcounts[upm_handle]; + refcount_set(&refcount->refcount, 1); + refcount->size = upm_size; + + spin_lock_irqsave(&hvs->mm_lock, irqflags); + ret = drm_mm_insert_node_generic(&hvs->upm_mm, + &refcount->upm, + upm_size, HVS_UBM_WORD_SIZE, + 0, 0); + spin_unlock_irqrestore(&hvs->mm_lock, irqflags); + if (ret) { + drm_err(drm, "Failed to allocate UPM entry: %d\n", ret); + refcount_set(&refcount->refcount, 0); + ida_free(&hvs->upm_handles, upm_handle); + vc4_state->upm_handle[i] = 0; + return ret; + } + } + + refcount = &hvs->upm_refcounts[upm_handle]; + vc4_state->dlist[vc4_state->ptr0_offset[i]] |= + VC4_SET_FIELD(refcount->upm.start / HVS_UBM_WORD_SIZE, + SCALER6_PTR0_UPM_BASE) | + VC4_SET_FIELD(vc4_state->upm_handle[i] - 1, + SCALER6_PTR0_UPM_HANDLE) | + VC4_SET_FIELD(vc4_state->upm_buffer_lines, + SCALER6_PTR0_UPM_BUFF_SIZE); + } + + return 0; +} + +static void vc6_plane_free_upm(struct drm_plane_state *state) +{ + struct vc4_plane_state *vc4_state = to_vc4_plane_state(state); + struct drm_device *drm = state->plane->dev; + struct vc4_dev *vc4 = to_vc4_dev(drm); + struct vc4_hvs *hvs = vc4->hvs; + unsigned int i; + + WARN_ON_ONCE(vc4->gen < VC4_GEN_6_C); + + for (i = 0; i < DRM_FORMAT_MAX_PLANES; i++) { + unsigned int upm_handle; + + upm_handle = vc4_state->upm_handle[i]; + if (!upm_handle) + continue; + + if (refcount_dec_and_test(&hvs->upm_refcounts[upm_handle].refcount)) + vc4_plane_release_upm_ida(hvs, upm_handle); + vc4_state->upm_handle[i] = 0; + } +} + +/* + * The colorspace conversion matrices are held in 3 entries in the dlist. + * Create an array of them, with entries for each full and limited mode, and + * each supported colorspace. + */ +static const u32 colorspace_coeffs[2][DRM_COLOR_ENCODING_MAX][3] = { + { + /* Limited range */ + { + /* BT601 */ + SCALER_CSC0_ITR_R_601_5, + SCALER_CSC1_ITR_R_601_5, + SCALER_CSC2_ITR_R_601_5, + }, { + /* BT709 */ + SCALER_CSC0_ITR_R_709_3, + SCALER_CSC1_ITR_R_709_3, + SCALER_CSC2_ITR_R_709_3, + }, { + /* BT2020 */ + SCALER_CSC0_ITR_R_2020, + SCALER_CSC1_ITR_R_2020, + SCALER_CSC2_ITR_R_2020, + } + }, { + /* Full range */ + { + /* JFIF */ + SCALER_CSC0_JPEG_JFIF, + SCALER_CSC1_JPEG_JFIF, + SCALER_CSC2_JPEG_JFIF, + }, { + /* BT709 */ + SCALER_CSC0_ITR_R_709_3_FR, + SCALER_CSC1_ITR_R_709_3_FR, + SCALER_CSC2_ITR_R_709_3_FR, + }, { + /* BT2020 */ + SCALER_CSC0_ITR_R_2020_FR, + SCALER_CSC1_ITR_R_2020_FR, + SCALER_CSC2_ITR_R_2020_FR, + } + } +}; + +static u32 vc4_hvs4_get_alpha_blend_mode(struct drm_plane_state *state) +{ + struct drm_device *dev = state->state->dev; + struct vc4_dev *vc4 = to_vc4_dev(dev); + + WARN_ON_ONCE(vc4->gen != VC4_GEN_4); + + if (!state->fb->format->has_alpha) + return VC4_SET_FIELD(SCALER_POS2_ALPHA_MODE_FIXED, + SCALER_POS2_ALPHA_MODE); + + switch (state->pixel_blend_mode) { + case DRM_MODE_BLEND_PIXEL_NONE: + return VC4_SET_FIELD(SCALER_POS2_ALPHA_MODE_FIXED, + SCALER_POS2_ALPHA_MODE); + default: + case DRM_MODE_BLEND_PREMULTI: + return VC4_SET_FIELD(SCALER_POS2_ALPHA_MODE_PIPELINE, + SCALER_POS2_ALPHA_MODE) | + SCALER_POS2_ALPHA_PREMULT; + case DRM_MODE_BLEND_COVERAGE: + return VC4_SET_FIELD(SCALER_POS2_ALPHA_MODE_PIPELINE, + SCALER_POS2_ALPHA_MODE); + } +} + +static u32 vc4_hvs5_get_alpha_blend_mode(struct drm_plane_state *state) +{ + struct drm_device *dev = state->state->dev; + struct vc4_dev *vc4 = to_vc4_dev(dev); + + WARN_ON_ONCE(vc4->gen != VC4_GEN_5 && vc4->gen != VC4_GEN_6_C && + vc4->gen != VC4_GEN_6_D); + + switch (vc4->gen) { + default: + case VC4_GEN_5: + case VC4_GEN_6_C: + if (!state->fb->format->has_alpha) + return VC4_SET_FIELD(SCALER5_CTL2_ALPHA_MODE_FIXED, + SCALER5_CTL2_ALPHA_MODE); + + switch (state->pixel_blend_mode) { + case DRM_MODE_BLEND_PIXEL_NONE: + return VC4_SET_FIELD(SCALER5_CTL2_ALPHA_MODE_FIXED, + SCALER5_CTL2_ALPHA_MODE); + default: + case DRM_MODE_BLEND_PREMULTI: + return VC4_SET_FIELD(SCALER5_CTL2_ALPHA_MODE_PIPELINE, + SCALER5_CTL2_ALPHA_MODE) | + SCALER5_CTL2_ALPHA_PREMULT; + case DRM_MODE_BLEND_COVERAGE: + return VC4_SET_FIELD(SCALER5_CTL2_ALPHA_MODE_PIPELINE, + SCALER5_CTL2_ALPHA_MODE); + } + case VC4_GEN_6_D: + /* 2712-D configures fixed alpha mode in CTL0 */ + return state->pixel_blend_mode == DRM_MODE_BLEND_PREMULTI ? + SCALER5_CTL2_ALPHA_PREMULT : 0; + } +} + +static u32 vc4_hvs6_get_alpha_mask_mode(struct drm_plane_state *state) +{ + struct drm_device *dev = state->state->dev; + struct vc4_dev *vc4 = to_vc4_dev(dev); + + WARN_ON_ONCE(vc4->gen != VC4_GEN_6_C && vc4->gen != VC4_GEN_6_D); + + if (vc4->gen == VC4_GEN_6_D && + (!state->fb->format->has_alpha || + state->pixel_blend_mode == DRM_MODE_BLEND_PIXEL_NONE)) + return VC4_SET_FIELD(SCALER6D_CTL0_ALPHA_MASK_FIXED, + SCALER6_CTL0_ALPHA_MASK); + + return VC4_SET_FIELD(SCALER6_CTL0_ALPHA_MASK_NONE, SCALER6_CTL0_ALPHA_MASK); +} + /* Writes out a full display list for an active plane to the plane's * private dlist state. */ @@ -499,34 +1211,36 @@ static int vc4_plane_mode_set(struct drm_plane *plane, struct drm_framebuffer *fb = state->fb; u32 ctl0_offset = vc4_state->dlist_count; const struct hvs_format *format = vc4_get_hvs_format(fb->format->format); - int num_planes = drm_format_num_planes(format->drm); + u64 base_format_mod = fourcc_mod_broadcom_mod(fb->modifier); + int num_planes = fb->format->num_planes; + u32 h_subsample = fb->format->hsub; + u32 v_subsample = fb->format->vsub; + bool mix_plane_alpha; + bool covers_screen; u32 scl0, scl1, pitch0; - u32 lbm_size, tiling; - unsigned long irqflags; + u32 tiling, src_x, src_y; + u32 width, height; + u32 hvs_format = format->hvs; + unsigned int rotation; + u32 offsets[3] = { 0 }; int ret, i; + if (vc4_state->dlist_initialized) + return 0; + ret = vc4_plane_setup_clipping_and_scaling(state); if (ret) return ret; - /* Allocate the LBM memory that the HVS will use for temporary - * storage due to our scaling/format conversion. - */ - lbm_size = vc4_lbm_size(state); - if (lbm_size) { - if (!vc4_state->lbm.allocated) { - spin_lock_irqsave(&vc4->hvs->mm_lock, irqflags); - ret = drm_mm_insert_node_generic(&vc4->hvs->lbm_mm, - &vc4_state->lbm, - lbm_size, 32, 0, 0); - spin_unlock_irqrestore(&vc4->hvs->mm_lock, irqflags); - } else { - WARN_ON_ONCE(lbm_size != vc4_state->lbm.size); - } + if (!vc4_state->src_w[0] || !vc4_state->src_h[0] || + !vc4_state->crtc_w || !vc4_state->crtc_h) { + /* 0 source size probably means the plane is offscreen */ + vc4_state->dlist_initialized = 1; + return 0; } - if (ret) - return ret; + width = vc4_state->src_w[0] >> 16; + height = vc4_state->src_h[0] >> 16; /* SCL1 is used for Cb/Cr scaling of planar formats. For RGB * and 4:4:4, scl1 should be set to scl0 so both channels of @@ -535,85 +1249,343 @@ static int vc4_plane_mode_set(struct drm_plane *plane, * the scl fields here. */ if (num_planes == 1) { - scl0 = vc4_get_scl_field(state, 1); + scl0 = vc4_get_scl_field(state, 0); scl1 = scl0; } else { scl0 = vc4_get_scl_field(state, 1); scl1 = vc4_get_scl_field(state, 0); } - switch (fb->modifier) { + rotation = drm_rotation_simplify(state->rotation, + DRM_MODE_ROTATE_0 | + DRM_MODE_REFLECT_X | + DRM_MODE_REFLECT_Y); + + /* We must point to the last line when Y reflection is enabled. */ + src_y = vc4_state->src_y >> 16; + if (rotation & DRM_MODE_REFLECT_Y) + src_y += height - 1; + + src_x = vc4_state->src_x >> 16; + + switch (base_format_mod) { case DRM_FORMAT_MOD_LINEAR: tiling = SCALER_CTL0_TILING_LINEAR; pitch0 = VC4_SET_FIELD(fb->pitches[0], SCALER_SRC_PITCH); + + /* Adjust the base pointer to the first pixel to be scanned + * out. + */ + for (i = 0; i < num_planes; i++) { + offsets[i] += src_y / (i ? v_subsample : 1) * fb->pitches[i]; + offsets[i] += src_x / (i ? h_subsample : 1) * fb->format->cpp[i]; + } + break; - case DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED: + + case DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED: { + u32 tile_size_shift = 12; /* T tiles are 4kb */ + /* Whole-tile offsets, mostly for setting the pitch. */ + u32 tile_w_shift = fb->format->cpp[0] == 2 ? 6 : 5; + u32 tile_h_shift = 5; /* 16 and 32bpp are 32 pixels high */ + u32 tile_w_mask = (1 << tile_w_shift) - 1; + /* The height mask on 32-bit-per-pixel tiles is 63, i.e. twice + * the height (in pixels) of a 4k tile. + */ + u32 tile_h_mask = (2 << tile_h_shift) - 1; + /* For T-tiled, the FB pitch is "how many bytes from one row to + * the next, such that + * + * pitch * tile_h == tile_size * tiles_per_row + */ + u32 tiles_w = fb->pitches[0] >> (tile_size_shift - tile_h_shift); + u32 tiles_l = src_x >> tile_w_shift; + u32 tiles_r = tiles_w - tiles_l; + u32 tiles_t = src_y >> tile_h_shift; + /* Intra-tile offsets, which modify the base address (the + * SCALER_PITCH0_TILE_Y_OFFSET tells HVS how to walk from that + * base address). + */ + u32 tile_y = (src_y >> 4) & 1; + u32 subtile_y = (src_y >> 2) & 3; + u32 utile_y = src_y & 3; + u32 x_off = src_x & tile_w_mask; + u32 y_off = src_y & tile_h_mask; + + /* When Y reflection is requested we must set the + * SCALER_PITCH0_TILE_LINE_DIR flag to tell HVS that all lines + * after the initial one should be fetched in descending order, + * which makes sense since we start from the last line and go + * backward. + * Don't know why we need y_off = max_y_off - y_off, but it's + * definitely required (I guess it's also related to the "going + * backward" situation). + */ + if (rotation & DRM_MODE_REFLECT_Y) { + y_off = tile_h_mask - y_off; + pitch0 = SCALER_PITCH0_TILE_LINE_DIR; + } else { + pitch0 = 0; + } + tiling = SCALER_CTL0_TILING_256B_OR_T; + pitch0 |= (VC4_SET_FIELD(x_off, SCALER_PITCH0_SINK_PIX) | + VC4_SET_FIELD(y_off, SCALER_PITCH0_TILE_Y_OFFSET) | + VC4_SET_FIELD(tiles_l, SCALER_PITCH0_TILE_WIDTH_L) | + VC4_SET_FIELD(tiles_r, SCALER_PITCH0_TILE_WIDTH_R)); + offsets[0] += tiles_t * (tiles_w << tile_size_shift); + offsets[0] += subtile_y << 8; + offsets[0] += utile_y << 4; + + /* Rows of tiles alternate left-to-right and right-to-left. */ + if (tiles_t & 1) { + pitch0 |= SCALER_PITCH0_TILE_INITIAL_LINE_DIR; + offsets[0] += (tiles_w - tiles_l) << tile_size_shift; + offsets[0] -= (1 + !tile_y) << 10; + } else { + offsets[0] += tiles_l << tile_size_shift; + offsets[0] += tile_y << 10; + } + + break; + } + + case DRM_FORMAT_MOD_BROADCOM_SAND64: + case DRM_FORMAT_MOD_BROADCOM_SAND128: + case DRM_FORMAT_MOD_BROADCOM_SAND256: { + uint32_t param = fourcc_mod_broadcom_param(fb->modifier); + + if (param > SCALER_TILE_HEIGHT_MASK) { + DRM_DEBUG_KMS("SAND height too large (%d)\n", + param); + return -EINVAL; + } + + if (fb->format->format == DRM_FORMAT_P030) { + hvs_format = HVS_PIXEL_FORMAT_YCBCR_10BIT; + tiling = SCALER_CTL0_TILING_128B; + } else { + hvs_format = HVS_PIXEL_FORMAT_H264; + + switch (base_format_mod) { + case DRM_FORMAT_MOD_BROADCOM_SAND64: + tiling = SCALER_CTL0_TILING_64B; + break; + case DRM_FORMAT_MOD_BROADCOM_SAND128: + tiling = SCALER_CTL0_TILING_128B; + break; + case DRM_FORMAT_MOD_BROADCOM_SAND256: + tiling = SCALER_CTL0_TILING_256B_OR_T; + break; + default: + return -EINVAL; + } + } + + /* Adjust the base pointer to the first pixel to be scanned + * out. + * + * For P030, y_ptr [31:4] is the 128bit word for the start pixel + * y_ptr [3:0] is the pixel (0-11) contained within that 128bit + * word that should be taken as the first pixel. + * Ditto uv_ptr [31:4] vs [3:0], however [3:0] contains the + * element within the 128bit word, eg for pixel 3 the value + * should be 6. + */ + for (i = 0; i < num_planes; i++) { + u32 tile_w, tile, x_off, pix_per_tile; + + if (fb->format->format == DRM_FORMAT_P030) { + /* + * Spec says: bits [31:4] of the given address + * should point to the 128-bit word containing + * the desired starting pixel, and bits[3:0] + * should be between 0 and 11, indicating which + * of the 12-pixels in that 128-bit word is the + * first pixel to be used + */ + u32 remaining_pixels = src_x % 96; + u32 aligned = remaining_pixels / 12; + u32 last_bits = remaining_pixels % 12; + + x_off = aligned * 16 + last_bits; + tile_w = 128; + pix_per_tile = 96; + } else { + switch (base_format_mod) { + case DRM_FORMAT_MOD_BROADCOM_SAND64: + tile_w = 64; + break; + case DRM_FORMAT_MOD_BROADCOM_SAND128: + tile_w = 128; + break; + case DRM_FORMAT_MOD_BROADCOM_SAND256: + tile_w = 256; + break; + default: + return -EINVAL; + } + pix_per_tile = tile_w / fb->format->cpp[0]; + x_off = (src_x % pix_per_tile) / + (i ? h_subsample : 1) * + fb->format->cpp[i]; + } + + tile = src_x / pix_per_tile; + + offsets[i] += param * tile_w * tile; + offsets[i] += src_y / (i ? v_subsample : 1) * tile_w; + offsets[i] += x_off & ~(i ? 1 : 0); + } - pitch0 = (VC4_SET_FIELD(0, SCALER_PITCH0_TILE_Y_OFFSET), - VC4_SET_FIELD(0, SCALER_PITCH0_TILE_WIDTH_L), - VC4_SET_FIELD((vc4_state->src_w[0] + 31) >> 5, - SCALER_PITCH0_TILE_WIDTH_R)); + pitch0 = VC4_SET_FIELD(param, SCALER_TILE_HEIGHT); break; + } + default: DRM_DEBUG_KMS("Unsupported FB tiling flag 0x%16llx", (long long)fb->modifier); return -EINVAL; } + /* fetch an extra pixel if we don't actually line up with the left edge. */ + if ((vc4_state->src_x & 0xffff) && vc4_state->src_x < (state->fb->width << 16)) + width++; + + /* same for the right side */ + if (((vc4_state->src_x + vc4_state->src_w[0]) & 0xffff) && + vc4_state->src_x + vc4_state->src_w[0] < (state->fb->width << 16)) + width++; + + /* now for the top */ + if ((vc4_state->src_y & 0xffff) && vc4_state->src_y < (state->fb->height << 16)) + height++; + + /* and the bottom */ + if (((vc4_state->src_y + vc4_state->src_h[0]) & 0xffff) && + vc4_state->src_y + vc4_state->src_h[0] < (state->fb->height << 16)) + height++; + + /* For YUV444 the hardware wants double the width, otherwise it doesn't + * fetch full width of chroma + */ + if (format->drm == DRM_FORMAT_YUV444 || format->drm == DRM_FORMAT_YVU444) + width <<= 1; + + /* Don't waste cycles mixing with plane alpha if the set alpha + * is opaque or there is no per-pixel alpha information. + * In any case we use the alpha property value as the fixed alpha. + */ + mix_plane_alpha = state->alpha != DRM_BLEND_ALPHA_OPAQUE && + fb->format->has_alpha; + + if (vc4->gen == VC4_GEN_4) { /* Control word */ - vc4_dlist_write(vc4_state, - SCALER_CTL0_VALID | - (format->pixel_order << SCALER_CTL0_ORDER_SHIFT) | - (format->hvs << SCALER_CTL0_PIXEL_FORMAT_SHIFT) | - VC4_SET_FIELD(tiling, SCALER_CTL0_TILING) | - (vc4_state->is_unity ? SCALER_CTL0_UNITY : 0) | - VC4_SET_FIELD(scl0, SCALER_CTL0_SCL0) | - VC4_SET_FIELD(scl1, SCALER_CTL0_SCL1)); - - /* Position Word 0: Image Positions and Alpha Value */ - vc4_state->pos0_offset = vc4_state->dlist_count; - vc4_dlist_write(vc4_state, - VC4_SET_FIELD(0xff, SCALER_POS0_FIXED_ALPHA) | - VC4_SET_FIELD(vc4_state->crtc_x, SCALER_POS0_START_X) | - VC4_SET_FIELD(vc4_state->crtc_y, SCALER_POS0_START_Y)); + vc4_dlist_write(vc4_state, + SCALER_CTL0_VALID | + (rotation & DRM_MODE_REFLECT_X ? SCALER_CTL0_HFLIP : 0) | + (rotation & DRM_MODE_REFLECT_Y ? SCALER_CTL0_VFLIP : 0) | + VC4_SET_FIELD(SCALER_CTL0_RGBA_EXPAND_ROUND, SCALER_CTL0_RGBA_EXPAND) | + (format->pixel_order << SCALER_CTL0_ORDER_SHIFT) | + (hvs_format << SCALER_CTL0_PIXEL_FORMAT_SHIFT) | + VC4_SET_FIELD(tiling, SCALER_CTL0_TILING) | + (vc4_state->is_unity ? SCALER_CTL0_UNITY : 0) | + VC4_SET_FIELD(scl0, SCALER_CTL0_SCL0) | + VC4_SET_FIELD(scl1, SCALER_CTL0_SCL1)); + + /* Position Word 0: Image Positions and Alpha Value */ + vc4_state->pos0_offset = vc4_state->dlist_count; + vc4_dlist_write(vc4_state, + VC4_SET_FIELD(state->alpha >> 8, SCALER_POS0_FIXED_ALPHA) | + VC4_SET_FIELD(vc4_state->crtc_x, SCALER_POS0_START_X) | + VC4_SET_FIELD(vc4_state->crtc_y, SCALER_POS0_START_Y)); + + /* Position Word 1: Scaled Image Dimensions. */ + if (!vc4_state->is_unity) { + vc4_dlist_write(vc4_state, + VC4_SET_FIELD(vc4_state->crtc_w, + SCALER_POS1_SCL_WIDTH) | + VC4_SET_FIELD(vc4_state->crtc_h, + SCALER_POS1_SCL_HEIGHT)); + } - /* Position Word 1: Scaled Image Dimensions. */ - if (!vc4_state->is_unity) { + /* Position Word 2: Source Image Size, Alpha */ + vc4_state->pos2_offset = vc4_state->dlist_count; vc4_dlist_write(vc4_state, - VC4_SET_FIELD(vc4_state->crtc_w, - SCALER_POS1_SCL_WIDTH) | - VC4_SET_FIELD(vc4_state->crtc_h, - SCALER_POS1_SCL_HEIGHT)); - } + (mix_plane_alpha ? SCALER_POS2_ALPHA_MIX : 0) | + vc4_hvs4_get_alpha_blend_mode(state) | + VC4_SET_FIELD(width, SCALER_POS2_WIDTH) | + VC4_SET_FIELD(height, SCALER_POS2_HEIGHT)); - /* Position Word 2: Source Image Size, Alpha Mode */ - vc4_state->pos2_offset = vc4_state->dlist_count; - vc4_dlist_write(vc4_state, - VC4_SET_FIELD(format->has_alpha ? - SCALER_POS2_ALPHA_MODE_PIPELINE : - SCALER_POS2_ALPHA_MODE_FIXED, - SCALER_POS2_ALPHA_MODE) | - VC4_SET_FIELD(vc4_state->src_w[0], SCALER_POS2_WIDTH) | - VC4_SET_FIELD(vc4_state->src_h[0], SCALER_POS2_HEIGHT)); - - /* Position Word 3: Context. Written by the HVS. */ - vc4_dlist_write(vc4_state, 0xc0c0c0c0); + /* Position Word 3: Context. Written by the HVS. */ + vc4_dlist_write(vc4_state, 0xc0c0c0c0); + + } else { + /* Control word */ + vc4_dlist_write(vc4_state, + SCALER_CTL0_VALID | + (format->pixel_order_hvs5 << SCALER_CTL0_ORDER_SHIFT) | + (hvs_format << SCALER_CTL0_PIXEL_FORMAT_SHIFT) | + VC4_SET_FIELD(tiling, SCALER_CTL0_TILING) | + (vc4_state->is_unity ? + SCALER5_CTL0_UNITY : 0) | + VC4_SET_FIELD(scl0, SCALER_CTL0_SCL0) | + VC4_SET_FIELD(scl1, SCALER_CTL0_SCL1) | + SCALER5_CTL0_ALPHA_EXPAND | + SCALER5_CTL0_RGB_EXPAND); + + /* Position Word 0: Image Positions and Alpha Value */ + vc4_state->pos0_offset = vc4_state->dlist_count; + vc4_dlist_write(vc4_state, + (rotation & DRM_MODE_REFLECT_Y ? + SCALER5_POS0_VFLIP : 0) | + VC4_SET_FIELD(vc4_state->crtc_x, + SCALER_POS0_START_X) | + (rotation & DRM_MODE_REFLECT_X ? + SCALER5_POS0_HFLIP : 0) | + VC4_SET_FIELD(vc4_state->crtc_y, + SCALER5_POS0_START_Y) + ); + + /* Control Word 2 */ + vc4_dlist_write(vc4_state, + VC4_SET_FIELD(state->alpha >> 4, + SCALER5_CTL2_ALPHA) | + vc4_hvs5_get_alpha_blend_mode(state) | + (mix_plane_alpha ? + SCALER5_CTL2_ALPHA_MIX : 0) + ); + + /* Position Word 1: Scaled Image Dimensions. */ + if (!vc4_state->is_unity) { + vc4_dlist_write(vc4_state, + VC4_SET_FIELD(vc4_state->crtc_w, + SCALER5_POS1_SCL_WIDTH) | + VC4_SET_FIELD(vc4_state->crtc_h, + SCALER5_POS1_SCL_HEIGHT)); + } + + /* Position Word 2: Source Image Size */ + vc4_state->pos2_offset = vc4_state->dlist_count; + vc4_dlist_write(vc4_state, + VC4_SET_FIELD(width, SCALER5_POS2_WIDTH) | + VC4_SET_FIELD(height, SCALER5_POS2_HEIGHT)); + + /* Position Word 3: Context. Written by the HVS. */ + vc4_dlist_write(vc4_state, 0xc0c0c0c0); + } /* Pointer Word 0/1/2: RGB / Y / Cb / Cr Pointers * * The pointers may be any byte address. */ - vc4_state->ptr0_offset = vc4_state->dlist_count; - if (!format->flip_cbcr) { - for (i = 0; i < num_planes; i++) - vc4_dlist_write(vc4_state, vc4_state->offsets[i]); - } else { - WARN_ON_ONCE(num_planes != 3); - vc4_dlist_write(vc4_state, vc4_state->offsets[0]); - vc4_dlist_write(vc4_state, vc4_state->offsets[2]); - vc4_dlist_write(vc4_state, vc4_state->offsets[1]); + vc4_state->ptr0_offset[0] = vc4_state->dlist_count; + + for (i = 0; i < num_planes; i++) { + struct drm_gem_dma_object *bo = drm_fb_dma_get_gem_obj(fb, i); + + vc4_dlist_write(vc4_state, bo->dma_addr + fb->offsets[i] + offsets[i]); } /* Pointer Context Word 0/1/2: Written by the HVS */ @@ -625,22 +1597,47 @@ static int vc4_plane_mode_set(struct drm_plane *plane, /* Pitch word 1/2 */ for (i = 1; i < num_planes; i++) { - vc4_dlist_write(vc4_state, - VC4_SET_FIELD(fb->pitches[i], SCALER_SRC_PITCH)); + if (hvs_format != HVS_PIXEL_FORMAT_H264 && + hvs_format != HVS_PIXEL_FORMAT_YCBCR_10BIT) { + vc4_dlist_write(vc4_state, + VC4_SET_FIELD(fb->pitches[i], + SCALER_SRC_PITCH)); + } else { + vc4_dlist_write(vc4_state, pitch0); + } } /* Colorspace conversion words */ if (vc4_state->is_yuv) { - vc4_dlist_write(vc4_state, SCALER_CSC0_ITR_R_601_5); - vc4_dlist_write(vc4_state, SCALER_CSC1_ITR_R_601_5); - vc4_dlist_write(vc4_state, SCALER_CSC2_ITR_R_601_5); + enum drm_color_encoding color_encoding = state->color_encoding; + enum drm_color_range color_range = state->color_range; + const u32 *ccm; + + if (color_encoding >= DRM_COLOR_ENCODING_MAX) + color_encoding = DRM_COLOR_YCBCR_BT601; + if (color_range >= DRM_COLOR_RANGE_MAX) + color_range = DRM_COLOR_YCBCR_LIMITED_RANGE; + + ccm = colorspace_coeffs[color_range][color_encoding]; + + vc4_dlist_write(vc4_state, ccm[0]); + vc4_dlist_write(vc4_state, ccm[1]); + vc4_dlist_write(vc4_state, ccm[2]); } - if (!vc4_state->is_unity) { - /* LBM Base Address. */ + vc4_state->lbm_offset = 0; + + if (vc4_state->x_scaling[0] != VC4_SCALING_NONE || + vc4_state->x_scaling[1] != VC4_SCALING_NONE || + vc4_state->y_scaling[0] != VC4_SCALING_NONE || + vc4_state->y_scaling[1] != VC4_SCALING_NONE) { + /* Reserve a slot for the LBM Base Address. The real value will + * be set when calling vc4_plane_allocate_lbm(). + */ if (vc4_state->y_scaling[0] != VC4_SCALING_NONE || vc4_state->y_scaling[1] != VC4_SCALING_NONE) { - vc4_dlist_write(vc4_state, vc4_state->lbm.start); + vc4_state->lbm_offset = vc4_state->dlist_count; + vc4_dlist_counter_increment(vc4_state); } if (num_planes > 1) { @@ -676,6 +1673,447 @@ static int vc4_plane_mode_set(struct drm_plane *plane, vc4_state->dlist[ctl0_offset] |= VC4_SET_FIELD(vc4_state->dlist_count, SCALER_CTL0_SIZE); + /* crtc_* are already clipped coordinates. */ + covers_screen = vc4_state->crtc_x == 0 && vc4_state->crtc_y == 0 && + vc4_state->crtc_w == state->crtc->mode.hdisplay && + vc4_state->crtc_h == state->crtc->mode.vdisplay; + /* Background fill might be necessary when the plane has per-pixel + * alpha content or a non-opaque plane alpha and could blend from the + * background or does not cover the entire screen. + */ + vc4_state->needs_bg_fill = fb->format->has_alpha || !covers_screen || + state->alpha != DRM_BLEND_ALPHA_OPAQUE; + + /* Flag the dlist as initialized to avoid checking it twice in case + * the async update check already called vc4_plane_mode_set() and + * decided to fallback to sync update because async update was not + * possible. + */ + vc4_state->dlist_initialized = 1; + + vc4_plane_calc_load(state); + + return 0; +} + +static u32 vc6_plane_get_csc_mode(struct vc4_plane_state *vc4_state) +{ + struct drm_plane_state *state = &vc4_state->base; + struct vc4_dev *vc4 = to_vc4_dev(state->plane->dev); + u32 ret = 0; + + if (vc4_state->is_yuv) { + enum drm_color_encoding color_encoding = state->color_encoding; + enum drm_color_range color_range = state->color_range; + + /* CSC pre-loaded with: + * 0 = BT601 limited range + * 1 = BT709 limited range + * 2 = BT2020 limited range + * 3 = BT601 full range + * 4 = BT709 full range + * 5 = BT2020 full range + */ + if (color_encoding > DRM_COLOR_YCBCR_BT2020) + color_encoding = DRM_COLOR_YCBCR_BT601; + if (color_range > DRM_COLOR_YCBCR_FULL_RANGE) + color_range = DRM_COLOR_YCBCR_LIMITED_RANGE; + + if (vc4->gen == VC4_GEN_6_C) { + ret |= SCALER6C_CTL2_CSC_ENABLE; + ret |= VC4_SET_FIELD(color_encoding + (color_range * 3), + SCALER6C_CTL2_BRCM_CFC_CONTROL); + } else { + ret |= SCALER6D_CTL2_CSC_ENABLE; + ret |= VC4_SET_FIELD(color_encoding + (color_range * 3), + SCALER6D_CTL2_BRCM_CFC_CONTROL); + } + } + + return ret; +} + +static int vc6_plane_mode_set(struct drm_plane *plane, + struct drm_plane_state *state) +{ + struct drm_device *drm = plane->dev; + struct vc4_dev *vc4 = to_vc4_dev(drm); + struct vc4_plane_state *vc4_state = to_vc4_plane_state(state); + struct drm_framebuffer *fb = state->fb; + const struct hvs_format *format = vc4_get_hvs_format(fb->format->format); + u64 base_format_mod = fourcc_mod_broadcom_mod(fb->modifier); + int num_planes = fb->format->num_planes; + u32 h_subsample = fb->format->hsub; + u32 v_subsample = fb->format->vsub; + bool mix_plane_alpha; + bool covers_screen; + u32 scl0, scl1, pitch0; + u32 tiling, src_x, src_y; + u32 width, height; + u32 hvs_format = format->hvs; + u32 offsets[3] = { 0 }; + unsigned int rotation; + int ret, i; + + if (vc4_state->dlist_initialized) + return 0; + + ret = vc4_plane_setup_clipping_and_scaling(state); + if (ret) + return ret; + + if (!vc4_state->src_w[0] || !vc4_state->src_h[0] || + !vc4_state->crtc_w || !vc4_state->crtc_h) { + /* 0 source size probably means the plane is offscreen. + * 0 destination size is a redundant plane. + */ + vc4_state->dlist_initialized = 1; + return 0; + } + + width = vc4_state->src_w[0] >> 16; + height = vc4_state->src_h[0] >> 16; + + /* SCL1 is used for Cb/Cr scaling of planar formats. For RGB + * and 4:4:4, scl1 should be set to scl0 so both channels of + * the scaler do the same thing. For YUV, the Y plane needs + * to be put in channel 1 and Cb/Cr in channel 0, so we swap + * the scl fields here. + */ + if (num_planes == 1) { + scl0 = vc4_get_scl_field(state, 0); + scl1 = scl0; + } else { + scl0 = vc4_get_scl_field(state, 1); + scl1 = vc4_get_scl_field(state, 0); + } + + rotation = drm_rotation_simplify(state->rotation, + DRM_MODE_ROTATE_0 | + DRM_MODE_REFLECT_X | + DRM_MODE_REFLECT_Y); + + /* We must point to the last line when Y reflection is enabled. */ + src_y = vc4_state->src_y >> 16; + if (rotation & DRM_MODE_REFLECT_Y) + src_y += height - 1; + + src_x = vc4_state->src_x >> 16; + + switch (base_format_mod) { + case DRM_FORMAT_MOD_LINEAR: + tiling = SCALER6_CTL0_ADDR_MODE_LINEAR; + + /* Adjust the base pointer to the first pixel to be scanned + * out. + */ + for (i = 0; i < num_planes; i++) { + offsets[i] += src_y / (i ? v_subsample : 1) * fb->pitches[i]; + offsets[i] += src_x / (i ? h_subsample : 1) * fb->format->cpp[i]; + } + + break; + + case DRM_FORMAT_MOD_BROADCOM_SAND128: + case DRM_FORMAT_MOD_BROADCOM_SAND256: { + uint32_t param = fourcc_mod_broadcom_param(fb->modifier); + u32 components_per_word; + u32 starting_offset; + u32 fetch_count; + + if (param > SCALER_TILE_HEIGHT_MASK) { + DRM_DEBUG_KMS("SAND height too large (%d)\n", + param); + return -EINVAL; + } + + if (fb->format->format == DRM_FORMAT_P030) { + hvs_format = HVS_PIXEL_FORMAT_YCBCR_10BIT; + tiling = SCALER6_CTL0_ADDR_MODE_128B; + } else { + hvs_format = HVS_PIXEL_FORMAT_YCBCR_YUV420_2PLANE; + + switch (base_format_mod) { + case DRM_FORMAT_MOD_BROADCOM_SAND128: + tiling = SCALER6_CTL0_ADDR_MODE_128B; + break; + case DRM_FORMAT_MOD_BROADCOM_SAND256: + tiling = SCALER6_CTL0_ADDR_MODE_256B; + break; + default: + return -EINVAL; + } + } + + /* Adjust the base pointer to the first pixel to be scanned + * out. + * + * For P030, y_ptr [31:4] is the 128bit word for the start pixel + * y_ptr [3:0] is the pixel (0-11) contained within that 128bit + * word that should be taken as the first pixel. + * Ditto uv_ptr [31:4] vs [3:0], however [3:0] contains the + * element within the 128bit word, eg for pixel 3 the value + * should be 6. + */ + for (i = 0; i < num_planes; i++) { + u32 tile_w, tile, x_off, pix_per_tile; + + if (fb->format->format == DRM_FORMAT_P030) { + /* + * Spec says: bits [31:4] of the given address + * should point to the 128-bit word containing + * the desired starting pixel, and bits[3:0] + * should be between 0 and 11, indicating which + * of the 12-pixels in that 128-bit word is the + * first pixel to be used + */ + u32 remaining_pixels = src_x % 96; + u32 aligned = remaining_pixels / 12; + u32 last_bits = remaining_pixels % 12; + + x_off = aligned * 16 + last_bits; + tile_w = 128; + pix_per_tile = 96; + } else { + switch (base_format_mod) { + case DRM_FORMAT_MOD_BROADCOM_SAND128: + tile_w = 128; + break; + case DRM_FORMAT_MOD_BROADCOM_SAND256: + tile_w = 256; + break; + default: + return -EINVAL; + } + pix_per_tile = tile_w / fb->format->cpp[0]; + x_off = (src_x % pix_per_tile) / + (i ? h_subsample : 1) * + fb->format->cpp[i]; + } + + tile = src_x / pix_per_tile; + + offsets[i] += param * tile_w * tile; + offsets[i] += src_y / (i ? v_subsample : 1) * tile_w; + offsets[i] += x_off & ~(i ? 1 : 0); + } + + components_per_word = fb->format->format == DRM_FORMAT_P030 ? 24 : 32; + starting_offset = src_x % components_per_word; + fetch_count = (width + starting_offset + components_per_word - 1) / + components_per_word; + + pitch0 = VC4_SET_FIELD(param, SCALER6_PTR2_PITCH) | + VC4_SET_FIELD(fetch_count - 1, SCALER6_PTR2_FETCH_COUNT); + break; + } + + default: + DRM_DEBUG_KMS("Unsupported FB tiling flag 0x%16llx", + (long long)fb->modifier); + return -EINVAL; + } + + /* fetch an extra pixel if we don't actually line up with the left edge. */ + if ((vc4_state->src_x & 0xffff) && vc4_state->src_x < (state->fb->width << 16)) + width++; + + /* same for the right side */ + if (((vc4_state->src_x + vc4_state->src_w[0]) & 0xffff) && + vc4_state->src_x + vc4_state->src_w[0] < (state->fb->width << 16)) + width++; + + /* now for the top */ + if ((vc4_state->src_y & 0xffff) && vc4_state->src_y < (state->fb->height << 16)) + height++; + + /* and the bottom */ + if (((vc4_state->src_y + vc4_state->src_h[0]) & 0xffff) && + vc4_state->src_y + vc4_state->src_h[0] < (state->fb->height << 16)) + height++; + + /* for YUV444 hardware wants double the width, otherwise it doesn't + * fetch full width of chroma + */ + if (format->drm == DRM_FORMAT_YUV444 || format->drm == DRM_FORMAT_YVU444) + width <<= 1; + + /* Don't waste cycles mixing with plane alpha if the set alpha + * is opaque or there is no per-pixel alpha information. + * In any case we use the alpha property value as the fixed alpha. + */ + mix_plane_alpha = state->alpha != DRM_BLEND_ALPHA_OPAQUE && + fb->format->has_alpha; + + /* Control Word 0: Scaling Configuration & Element Validity*/ + vc4_dlist_write(vc4_state, + SCALER6_CTL0_VALID | + VC4_SET_FIELD(tiling, SCALER6_CTL0_ADDR_MODE) | + vc4_hvs6_get_alpha_mask_mode(state) | + (vc4_state->is_unity ? SCALER6_CTL0_UNITY : 0) | + VC4_SET_FIELD(format->pixel_order_hvs5, SCALER6_CTL0_ORDERRGBA) | + VC4_SET_FIELD(scl1, SCALER6_CTL0_SCL1_MODE) | + VC4_SET_FIELD(scl0, SCALER6_CTL0_SCL0_MODE) | + VC4_SET_FIELD(hvs_format, SCALER6_CTL0_PIXEL_FORMAT)); + + /* Position Word 0: Image Position */ + vc4_state->pos0_offset = vc4_state->dlist_count; + vc4_dlist_write(vc4_state, + VC4_SET_FIELD(vc4_state->crtc_y, SCALER6_POS0_START_Y) | + (rotation & DRM_MODE_REFLECT_X ? SCALER6_POS0_HFLIP : 0) | + VC4_SET_FIELD(vc4_state->crtc_x, SCALER6_POS0_START_X)); + + /* Control Word 2: Alpha Value & CSC */ + vc4_dlist_write(vc4_state, + vc6_plane_get_csc_mode(vc4_state) | + vc4_hvs5_get_alpha_blend_mode(state) | + (mix_plane_alpha ? SCALER6_CTL2_ALPHA_MIX : 0) | + VC4_SET_FIELD(state->alpha >> 4, SCALER5_CTL2_ALPHA)); + + /* Position Word 1: Scaled Image Dimensions */ + if (!vc4_state->is_unity) + vc4_dlist_write(vc4_state, + VC4_SET_FIELD(vc4_state->crtc_h - 1, + SCALER6_POS1_SCL_LINES) | + VC4_SET_FIELD(vc4_state->crtc_w - 1, + SCALER6_POS1_SCL_WIDTH)); + + /* Position Word 2: Source Image Size */ + vc4_state->pos2_offset = vc4_state->dlist_count; + vc4_dlist_write(vc4_state, + VC4_SET_FIELD(height - 1, + SCALER6_POS2_SRC_LINES) | + VC4_SET_FIELD(width - 1, + SCALER6_POS2_SRC_WIDTH)); + + /* Position Word 3: Context */ + vc4_dlist_write(vc4_state, 0xc0c0c0c0); + + /* + * TODO: This only covers Raster Scan Order planes + */ + for (i = 0; i < num_planes; i++) { + struct drm_gem_dma_object *bo = drm_fb_dma_get_gem_obj(fb, i); + dma_addr_t paddr = bo->dma_addr + fb->offsets[i] + offsets[i]; + + /* Pointer Word 0 */ + vc4_state->ptr0_offset[i] = vc4_state->dlist_count; + vc4_dlist_write(vc4_state, + (rotation & DRM_MODE_REFLECT_Y ? SCALER6_PTR0_VFLIP : 0) | + /* + * The UPM buffer will be allocated in + * vc6_plane_allocate_upm(). + */ + VC4_SET_FIELD(upper_32_bits(paddr) & 0xff, + SCALER6_PTR0_UPPER_ADDR)); + + /* Pointer Word 1 */ + vc4_dlist_write(vc4_state, lower_32_bits(paddr)); + + /* Pointer Word 2 */ + if (base_format_mod != DRM_FORMAT_MOD_BROADCOM_SAND128 && + base_format_mod != DRM_FORMAT_MOD_BROADCOM_SAND256) { + vc4_dlist_write(vc4_state, + VC4_SET_FIELD(fb->pitches[i], + SCALER6_PTR2_PITCH)); + } else { + vc4_dlist_write(vc4_state, pitch0); + } + } + + /* + * Palette Word 0 + * TODO: We're not using the palette mode + */ + + /* + * Trans Word 0 + * TODO: It's only relevant if we set the trans_rgb bit in the + * control word 0, and we don't at the moment. + */ + + vc4_state->lbm_offset = 0; + + if (!vc4_state->is_unity || fb->format->is_yuv) { + /* + * Reserve a slot for the LBM Base Address. The real value will + * be set when calling vc4_plane_allocate_lbm(). + */ + if (vc4_state->y_scaling[0] != VC4_SCALING_NONE || + vc4_state->y_scaling[1] != VC4_SCALING_NONE) { + vc4_state->lbm_offset = vc4_state->dlist_count; + vc4_dlist_counter_increment(vc4_state); + } + + if (vc4_state->x_scaling[0] != VC4_SCALING_NONE || + vc4_state->x_scaling[1] != VC4_SCALING_NONE || + vc4_state->y_scaling[0] != VC4_SCALING_NONE || + vc4_state->y_scaling[1] != VC4_SCALING_NONE) { + if (num_planes > 1) + /* + * Emit Cb/Cr as channel 0 and Y as channel + * 1. This matches how we set up scl0/scl1 + * above. + */ + vc4_write_scaling_parameters(state, 1); + + vc4_write_scaling_parameters(state, 0); + } + + /* + * If any PPF setup was done, then all the kernel + * pointers get uploaded. + */ + if (vc4_state->x_scaling[0] == VC4_SCALING_PPF || + vc4_state->y_scaling[0] == VC4_SCALING_PPF || + vc4_state->x_scaling[1] == VC4_SCALING_PPF || + vc4_state->y_scaling[1] == VC4_SCALING_PPF) { + u32 kernel = + VC4_SET_FIELD(vc4->hvs->mitchell_netravali_filter.start, + SCALER_PPF_KERNEL_OFFSET); + + /* HPPF plane 0 */ + vc4_dlist_write(vc4_state, kernel); + /* VPPF plane 0 */ + vc4_dlist_write(vc4_state, kernel); + /* HPPF plane 1 */ + vc4_dlist_write(vc4_state, kernel); + /* VPPF plane 1 */ + vc4_dlist_write(vc4_state, kernel); + } + } + + vc4_dlist_write(vc4_state, SCALER6_CTL0_END); + + vc4_state->dlist[0] |= + VC4_SET_FIELD(vc4_state->dlist_count, SCALER6_CTL0_NEXT); + + /* crtc_* are already clipped coordinates. */ + covers_screen = vc4_state->crtc_x == 0 && vc4_state->crtc_y == 0 && + vc4_state->crtc_w == state->crtc->mode.hdisplay && + vc4_state->crtc_h == state->crtc->mode.vdisplay; + + /* + * Background fill might be necessary when the plane has per-pixel + * alpha content or a non-opaque plane alpha and could blend from the + * background or does not cover the entire screen. + */ + vc4_state->needs_bg_fill = fb->format->has_alpha || !covers_screen || + state->alpha != DRM_BLEND_ALPHA_OPAQUE; + + /* + * Flag the dlist as initialized to avoid checking it twice in case + * the async update check already called vc4_plane_mode_set() and + * decided to fallback to sync update because async update was not + * possible. + */ + vc4_state->dlist_initialized = 1; + + vc4_plane_calc_load(state); + + drm_dbg_driver(drm, "[PLANE:%d:%s] Computed DLIST size: %u\n", + plane->base.id, plane->name, vc4_state->dlist_count); + return 0; } @@ -687,20 +2125,53 @@ static int vc4_plane_mode_set(struct drm_plane *plane, * in the CRTC's flush. */ static int vc4_plane_atomic_check(struct drm_plane *plane, - struct drm_plane_state *state) + struct drm_atomic_state *state) { - struct vc4_plane_state *vc4_state = to_vc4_plane_state(state); + struct vc4_dev *vc4 = to_vc4_dev(plane->dev); + struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, + plane); + struct vc4_plane_state *vc4_state = to_vc4_plane_state(new_plane_state); + int ret; vc4_state->dlist_count = 0; - if (plane_enabled(state)) - return vc4_plane_mode_set(plane, state); + if (!plane_enabled(new_plane_state)) { + struct drm_plane_state *old_plane_state = + drm_atomic_get_old_plane_state(state, plane); + + if (vc4->gen >= VC4_GEN_6_C && old_plane_state && + plane_enabled(old_plane_state)) { + vc6_plane_free_upm(new_plane_state); + } + return 0; + } + + if (vc4->gen >= VC4_GEN_6_C) + ret = vc6_plane_mode_set(plane, new_plane_state); else + ret = vc4_plane_mode_set(plane, new_plane_state); + if (ret) + return ret; + + if (!vc4_state->src_w[0] || !vc4_state->src_h[0] || + !vc4_state->crtc_w || !vc4_state->crtc_h) return 0; + + ret = vc4_plane_allocate_lbm(new_plane_state); + if (ret) + return ret; + + if (vc4->gen >= VC4_GEN_6_C) { + ret = vc6_plane_allocate_upm(new_plane_state); + if (ret) + return ret; + } + + return 0; } static void vc4_plane_atomic_update(struct drm_plane *plane, - struct drm_plane_state *old_state) + struct drm_atomic_state *state) { /* No contents here. Since we don't know where in the CRTC's * dlist we should be stored, our dlist is uploaded to the @@ -713,6 +2184,10 @@ u32 vc4_plane_write_dlist(struct drm_plane *plane, u32 __iomem *dlist) { struct vc4_plane_state *vc4_state = to_vc4_plane_state(plane->state); int i; + int idx; + + if (!drm_dev_enter(plane->dev, &idx)) + goto out; vc4_state->hw_dlist = dlist; @@ -720,13 +2195,15 @@ u32 vc4_plane_write_dlist(struct drm_plane *plane, u32 __iomem *dlist) for (i = 0; i < vc4_state->dlist_count; i++) writel(vc4_state->dlist[i], &dlist[i]); + drm_dev_exit(idx); + +out: return vc4_state->dlist_count; } u32 vc4_plane_dlist_size(const struct drm_plane_state *state) { - const struct vc4_plane_state *vc4_state = - container_of(state, typeof(*vc4_state), base); + const struct vc4_plane_state *vc4_state = to_vc4_plane_state(state); return vc4_state->dlist_count; } @@ -737,92 +2214,113 @@ u32 vc4_plane_dlist_size(const struct drm_plane_state *state) void vc4_plane_async_set_fb(struct drm_plane *plane, struct drm_framebuffer *fb) { struct vc4_plane_state *vc4_state = to_vc4_plane_state(plane->state); - struct drm_gem_cma_object *bo = drm_fb_cma_get_gem_obj(fb, 0); - uint32_t addr; + struct drm_gem_dma_object *bo = drm_fb_dma_get_gem_obj(fb, 0); + struct vc4_dev *vc4 = to_vc4_dev(plane->dev); + dma_addr_t dma_addr = bo->dma_addr + fb->offsets[0]; + int idx; + + if (!drm_dev_enter(plane->dev, &idx)) + return; /* We're skipping the address adjustment for negative origin, * because this is only called on the primary plane. */ WARN_ON_ONCE(plane->state->crtc_x < 0 || plane->state->crtc_y < 0); - addr = bo->paddr + fb->offsets[0]; - - /* Write the new address into the hardware immediately. The - * scanout will start from this address as soon as the FIFO - * needs to refill with pixels. - */ - writel(addr, &vc4_state->hw_dlist[vc4_state->ptr0_offset]); - /* Also update the CPU-side dlist copy, so that any later - * atomic updates that don't do a new modeset on our plane - * also use our updated address. - */ - vc4_state->dlist[vc4_state->ptr0_offset] = addr; -} + if (vc4->gen == VC4_GEN_6_C) { + u32 value; -static const struct drm_plane_helper_funcs vc4_plane_helper_funcs = { - .atomic_check = vc4_plane_atomic_check, - .atomic_update = vc4_plane_atomic_update, -}; + value = vc4_state->dlist[vc4_state->ptr0_offset[0]] & + ~SCALER6_PTR0_UPPER_ADDR_MASK; + value |= VC4_SET_FIELD(upper_32_bits(dma_addr) & 0xff, + SCALER6_PTR0_UPPER_ADDR); -static void vc4_plane_destroy(struct drm_plane *plane) -{ - drm_plane_helper_disable(plane); - drm_plane_cleanup(plane); -} + writel(value, &vc4_state->hw_dlist[vc4_state->ptr0_offset[0]]); + vc4_state->dlist[vc4_state->ptr0_offset[0]] = value; -/* Implements immediate (non-vblank-synced) updates of the cursor - * position, or falls back to the atomic helper otherwise. - */ -static int -vc4_update_plane(struct drm_plane *plane, - struct drm_crtc *crtc, - struct drm_framebuffer *fb, - int crtc_x, int crtc_y, - unsigned int crtc_w, unsigned int crtc_h, - uint32_t src_x, uint32_t src_y, - uint32_t src_w, uint32_t src_h, - struct drm_modeset_acquire_ctx *ctx) -{ - struct drm_plane_state *plane_state; - struct vc4_plane_state *vc4_state; - - if (plane != crtc->cursor) - goto out; + value = lower_32_bits(dma_addr); + writel(value, &vc4_state->hw_dlist[vc4_state->ptr0_offset[0] + 1]); + vc4_state->dlist[vc4_state->ptr0_offset[0] + 1] = value; + } else { + u32 addr; - plane_state = plane->state; - vc4_state = to_vc4_plane_state(plane_state); + addr = (u32)dma_addr; - if (!plane_state) - goto out; + /* Write the new address into the hardware immediately. The + * scanout will start from this address as soon as the FIFO + * needs to refill with pixels. + */ + writel(addr, &vc4_state->hw_dlist[vc4_state->ptr0_offset[0]]); - /* No configuring new scaling in the fast path. */ - if (crtc_w != plane_state->crtc_w || - crtc_h != plane_state->crtc_h || - src_w != plane_state->src_w || - src_h != plane_state->src_h) { - goto out; + /* Also update the CPU-side dlist copy, so that any later + * atomic updates that don't do a new modeset on our plane + * also use our updated address. + */ + vc4_state->dlist[vc4_state->ptr0_offset[0]] = addr; } - if (fb != plane_state->fb) { - drm_atomic_set_fb_for_plane(plane->state, fb); - vc4_plane_async_set_fb(plane, fb); - } + drm_dev_exit(idx); +} - /* Set the cursor's position on the screen. This is the - * expected change from the drm_mode_cursor_universal() - * helper. - */ - plane_state->crtc_x = crtc_x; - plane_state->crtc_y = crtc_y; +static void vc4_plane_atomic_async_update(struct drm_plane *plane, + struct drm_atomic_state *state) +{ + struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, + plane); + struct vc4_plane_state *vc4_state, *new_vc4_state; + int idx; - /* Allow changing the start position within the cursor BO, if - * that matters. - */ - plane_state->src_x = src_x; - plane_state->src_y = src_y; + if (!drm_dev_enter(plane->dev, &idx)) + return; - /* Update the display list based on the new crtc_x/y. */ - vc4_plane_atomic_check(plane, plane_state); + swap(plane->state->fb, new_plane_state->fb); + plane->state->crtc_x = new_plane_state->crtc_x; + plane->state->crtc_y = new_plane_state->crtc_y; + plane->state->crtc_w = new_plane_state->crtc_w; + plane->state->crtc_h = new_plane_state->crtc_h; + plane->state->src_x = new_plane_state->src_x; + plane->state->src_y = new_plane_state->src_y; + plane->state->src_w = new_plane_state->src_w; + plane->state->src_h = new_plane_state->src_h; + plane->state->alpha = new_plane_state->alpha; + plane->state->pixel_blend_mode = new_plane_state->pixel_blend_mode; + plane->state->rotation = new_plane_state->rotation; + plane->state->zpos = new_plane_state->zpos; + plane->state->normalized_zpos = new_plane_state->normalized_zpos; + plane->state->color_encoding = new_plane_state->color_encoding; + plane->state->color_range = new_plane_state->color_range; + plane->state->src = new_plane_state->src; + plane->state->dst = new_plane_state->dst; + plane->state->visible = new_plane_state->visible; + + new_vc4_state = to_vc4_plane_state(new_plane_state); + vc4_state = to_vc4_plane_state(plane->state); + + vc4_state->crtc_x = new_vc4_state->crtc_x; + vc4_state->crtc_y = new_vc4_state->crtc_y; + vc4_state->crtc_h = new_vc4_state->crtc_h; + vc4_state->crtc_w = new_vc4_state->crtc_w; + vc4_state->src_x = new_vc4_state->src_x; + vc4_state->src_y = new_vc4_state->src_y; + memcpy(vc4_state->src_w, new_vc4_state->src_w, + sizeof(vc4_state->src_w)); + memcpy(vc4_state->src_h, new_vc4_state->src_h, + sizeof(vc4_state->src_h)); + memcpy(vc4_state->x_scaling, new_vc4_state->x_scaling, + sizeof(vc4_state->x_scaling)); + memcpy(vc4_state->y_scaling, new_vc4_state->y_scaling, + sizeof(vc4_state->y_scaling)); + vc4_state->is_unity = new_vc4_state->is_unity; + vc4_state->is_yuv = new_vc4_state->is_yuv; + vc4_state->needs_bg_fill = new_vc4_state->needs_bg_fill; + + /* Update the current vc4_state pos0, pos2 and ptr0 dlist entries. */ + vc4_state->dlist[vc4_state->pos0_offset] = + new_vc4_state->dlist[vc4_state->pos0_offset]; + vc4_state->dlist[vc4_state->pos2_offset] = + new_vc4_state->dlist[vc4_state->pos2_offset]; + vc4_state->dlist[vc4_state->ptr0_offset[0]] = + new_vc4_state->dlist[vc4_state->ptr0_offset[0]]; /* Note that we can't just call vc4_plane_write_dlist() * because that would smash the context data that the HVS is @@ -832,62 +2330,293 @@ vc4_update_plane(struct drm_plane *plane, &vc4_state->hw_dlist[vc4_state->pos0_offset]); writel(vc4_state->dlist[vc4_state->pos2_offset], &vc4_state->hw_dlist[vc4_state->pos2_offset]); - writel(vc4_state->dlist[vc4_state->ptr0_offset], - &vc4_state->hw_dlist[vc4_state->ptr0_offset]); + writel(vc4_state->dlist[vc4_state->ptr0_offset[0]], + &vc4_state->hw_dlist[vc4_state->ptr0_offset[0]]); + + drm_dev_exit(idx); +} + +static int vc4_plane_atomic_async_check(struct drm_plane *plane, + struct drm_atomic_state *state, bool flip) +{ + struct vc4_dev *vc4 = to_vc4_dev(plane->dev); + struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, + plane); + struct vc4_plane_state *old_vc4_state, *new_vc4_state; + int ret; + u32 i; + + if (vc4->gen <= VC4_GEN_5) + ret = vc4_plane_mode_set(plane, new_plane_state); + else + ret = vc6_plane_mode_set(plane, new_plane_state); + if (ret) + return ret; + + old_vc4_state = to_vc4_plane_state(plane->state); + new_vc4_state = to_vc4_plane_state(new_plane_state); + + if (!new_vc4_state->hw_dlist) + return -EINVAL; + + if (old_vc4_state->dlist_count != new_vc4_state->dlist_count || + old_vc4_state->pos0_offset != new_vc4_state->pos0_offset || + old_vc4_state->pos2_offset != new_vc4_state->pos2_offset || + old_vc4_state->ptr0_offset[0] != new_vc4_state->ptr0_offset[0] || + vc4_lbm_size(plane->state) != vc4_lbm_size(new_plane_state)) + return -EINVAL; + + /* Only pos0, pos2 and ptr0 DWORDS can be updated in an async update + * if anything else has changed, fallback to a sync update. + */ + for (i = 0; i < new_vc4_state->dlist_count; i++) { + if (i == new_vc4_state->pos0_offset || + i == new_vc4_state->pos2_offset || + i == new_vc4_state->ptr0_offset[0] || + (new_vc4_state->lbm_offset && + i == new_vc4_state->lbm_offset)) + continue; + + if (new_vc4_state->dlist[i] != old_vc4_state->dlist[i]) + return -EINVAL; + } return 0; +} -out: - return drm_atomic_helper_update_plane(plane, crtc, fb, - crtc_x, crtc_y, - crtc_w, crtc_h, - src_x, src_y, - src_w, src_h, - ctx); +static int vc4_prepare_fb(struct drm_plane *plane, + struct drm_plane_state *state) +{ + struct vc4_bo *bo; + int ret; + + if (!state->fb) + return 0; + + bo = to_vc4_bo(&drm_fb_dma_get_gem_obj(state->fb, 0)->base); + + ret = drm_gem_plane_helper_prepare_fb(plane, state); + if (ret) + return ret; + + return vc4_bo_inc_usecnt(bo); +} + +static void vc4_cleanup_fb(struct drm_plane *plane, + struct drm_plane_state *state) +{ + struct vc4_bo *bo; + + if (!state->fb) + return; + + bo = to_vc4_bo(&drm_fb_dma_get_gem_obj(state->fb, 0)->base); + vc4_bo_dec_usecnt(bo); +} + +static const struct drm_plane_helper_funcs vc4_plane_helper_funcs = { + .atomic_check = vc4_plane_atomic_check, + .atomic_update = vc4_plane_atomic_update, + .prepare_fb = vc4_prepare_fb, + .cleanup_fb = vc4_cleanup_fb, + .atomic_async_check = vc4_plane_atomic_async_check, + .atomic_async_update = vc4_plane_atomic_async_update, +}; + +static const struct drm_plane_helper_funcs vc5_plane_helper_funcs = { + .atomic_check = vc4_plane_atomic_check, + .atomic_update = vc4_plane_atomic_update, + .atomic_async_check = vc4_plane_atomic_async_check, + .atomic_async_update = vc4_plane_atomic_async_update, +}; + +static bool vc4_format_mod_supported(struct drm_plane *plane, + uint32_t format, + uint64_t modifier) +{ + /* Support T_TILING for RGB formats only. */ + switch (format) { + case DRM_FORMAT_XRGB8888: + case DRM_FORMAT_ARGB8888: + case DRM_FORMAT_ABGR8888: + case DRM_FORMAT_XBGR8888: + case DRM_FORMAT_RGB565: + case DRM_FORMAT_BGR565: + case DRM_FORMAT_ARGB1555: + case DRM_FORMAT_XRGB1555: + switch (fourcc_mod_broadcom_mod(modifier)) { + case DRM_FORMAT_MOD_LINEAR: + case DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED: + return true; + 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_SAND64: + case DRM_FORMAT_MOD_BROADCOM_SAND128: + case DRM_FORMAT_MOD_BROADCOM_SAND256: + return true; + default: + return false; + } + case DRM_FORMAT_P030: + switch (fourcc_mod_broadcom_mod(modifier)) { + case DRM_FORMAT_MOD_BROADCOM_SAND128: + return true; + default: + return false; + } + case DRM_FORMAT_RGBX1010102: + case DRM_FORMAT_BGRX1010102: + case DRM_FORMAT_RGBA1010102: + case DRM_FORMAT_BGRA1010102: + case DRM_FORMAT_XRGB4444: + case DRM_FORMAT_ARGB4444: + case DRM_FORMAT_XBGR4444: + case DRM_FORMAT_ABGR4444: + case DRM_FORMAT_RGBX4444: + case DRM_FORMAT_RGBA4444: + case DRM_FORMAT_BGRX4444: + case DRM_FORMAT_BGRA4444: + case DRM_FORMAT_RGB332: + case DRM_FORMAT_BGR233: + case DRM_FORMAT_YUV422: + case DRM_FORMAT_YVU422: + case DRM_FORMAT_YUV420: + case DRM_FORMAT_YVU420: + case DRM_FORMAT_NV16: + case DRM_FORMAT_NV61: + default: + return (modifier == DRM_FORMAT_MOD_LINEAR); + } } static const struct drm_plane_funcs vc4_plane_funcs = { - .update_plane = vc4_update_plane, + .update_plane = drm_atomic_helper_update_plane, .disable_plane = drm_atomic_helper_disable_plane, - .destroy = vc4_plane_destroy, - .set_property = NULL, .reset = vc4_plane_reset, .atomic_duplicate_state = vc4_plane_duplicate_state, .atomic_destroy_state = vc4_plane_destroy_state, + .format_mod_supported = vc4_format_mod_supported, }; struct drm_plane *vc4_plane_init(struct drm_device *dev, - enum drm_plane_type type) + enum drm_plane_type type, + uint32_t possible_crtcs) { - struct drm_plane *plane = NULL; + struct vc4_dev *vc4 = to_vc4_dev(dev); + struct drm_plane *plane; struct vc4_plane *vc4_plane; u32 formats[ARRAY_SIZE(hvs_formats)]; - u32 num_formats = 0; - int ret = 0; + int num_formats = 0; unsigned i; - - vc4_plane = devm_kzalloc(dev->dev, sizeof(*vc4_plane), - GFP_KERNEL); - if (!vc4_plane) - return ERR_PTR(-ENOMEM); + static const uint64_t modifiers[] = { + DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED, + DRM_FORMAT_MOD_BROADCOM_SAND128, + DRM_FORMAT_MOD_BROADCOM_SAND64, + DRM_FORMAT_MOD_BROADCOM_SAND256, + DRM_FORMAT_MOD_LINEAR, + DRM_FORMAT_MOD_INVALID + }; for (i = 0; i < ARRAY_SIZE(hvs_formats); i++) { - /* Don't allow YUV in cursor planes, since that means - * tuning on the scaler, which we don't allow for the - * cursor. - */ - if (type != DRM_PLANE_TYPE_CURSOR || - hvs_formats[i].hvs < HVS_PIXEL_FORMAT_YCBCR_YUV420_3PLANE) { - formats[num_formats++] = hvs_formats[i].drm; + if (!hvs_formats[i].hvs5_only || vc4->gen >= VC4_GEN_5) { + formats[num_formats] = hvs_formats[i].drm; + num_formats++; } } + + vc4_plane = drmm_universal_plane_alloc(dev, struct vc4_plane, base, + possible_crtcs, + &vc4_plane_funcs, + formats, num_formats, + modifiers, type, NULL); + if (IS_ERR(vc4_plane)) + return ERR_CAST(vc4_plane); plane = &vc4_plane->base; - ret = drm_universal_plane_init(dev, plane, 0, - &vc4_plane_funcs, - formats, num_formats, - type, NULL); - drm_plane_helper_add(plane, &vc4_plane_helper_funcs); + if (vc4->gen >= VC4_GEN_5) + drm_plane_helper_add(plane, &vc5_plane_helper_funcs); + else + drm_plane_helper_add(plane, &vc4_plane_helper_funcs); + + drm_plane_create_alpha_property(plane); + drm_plane_create_blend_mode_property(plane, + BIT(DRM_MODE_BLEND_PIXEL_NONE) | + BIT(DRM_MODE_BLEND_PREMULTI) | + BIT(DRM_MODE_BLEND_COVERAGE)); + drm_plane_create_rotation_property(plane, DRM_MODE_ROTATE_0, + DRM_MODE_ROTATE_0 | + DRM_MODE_ROTATE_180 | + DRM_MODE_REFLECT_X | + DRM_MODE_REFLECT_Y); + + drm_plane_create_color_properties(plane, + BIT(DRM_COLOR_YCBCR_BT601) | + BIT(DRM_COLOR_YCBCR_BT709) | + BIT(DRM_COLOR_YCBCR_BT2020), + BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) | + BIT(DRM_COLOR_YCBCR_FULL_RANGE), + DRM_COLOR_YCBCR_BT709, + DRM_COLOR_YCBCR_LIMITED_RANGE); + + if (type == DRM_PLANE_TYPE_PRIMARY) + drm_plane_create_zpos_immutable_property(plane, 0); return plane; } + +#define VC4_NUM_OVERLAY_PLANES 16 + +int vc4_plane_create_additional_planes(struct drm_device *drm) +{ + struct drm_plane *cursor_plane; + struct drm_crtc *crtc; + unsigned int i; + + /* Set up some arbitrary number of planes. We're not limited + * by a set number of physical registers, just the space in + * the HVS (16k) and how small an plane can be (28 bytes). + * However, each plane we set up takes up some memory, and + * increases the cost of looping over planes, which atomic + * modesetting does quite a bit. As a result, we pick a + * modest number of planes to expose, that should hopefully + * still cover any sane usecase. + */ + for (i = 0; i < VC4_NUM_OVERLAY_PLANES; i++) { + struct drm_plane *plane = + vc4_plane_init(drm, DRM_PLANE_TYPE_OVERLAY, + GENMASK(drm->mode_config.num_crtc - 1, 0)); + + if (IS_ERR(plane)) + continue; + + /* Create zpos property. Max of all the overlays + 1 primary + + * 1 cursor plane on a crtc. + */ + drm_plane_create_zpos_property(plane, i + 1, 1, + VC4_NUM_OVERLAY_PLANES + 1); + } + + drm_for_each_crtc(crtc, drm) { + /* Set up the legacy cursor after overlay initialization, + * since the zpos fallback is that planes are rendered by plane + * ID order, and that then puts the cursor on top. + */ + cursor_plane = vc4_plane_init(drm, DRM_PLANE_TYPE_CURSOR, + drm_crtc_mask(crtc)); + if (!IS_ERR(cursor_plane)) { + crtc->cursor = cursor_plane; + + drm_plane_create_zpos_property(cursor_plane, + VC4_NUM_OVERLAY_PLANES + 1, + 1, + VC4_NUM_OVERLAY_PLANES + 1); + } + } + + return 0; +} |