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author | Chris Zankel <chris@zankel.net> | 2015-08-29 23:55:58 (GMT) |
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committer | Chris Zankel <chris@zankel.net> | 2015-08-29 23:55:58 (GMT) |
commit | 650c919798c71fb34b77a6f2ba03a06907f06a76 (patch) | |
tree | d1c60012d4d86846d25f1d0b783b5122c26a2e31 /drivers/gpu/drm/armada/armada_overlay.c | |
parent | 895fb3159280fe7695b35ec7c87ec19e13ca5b6e (diff) | |
parent | 64291f7db5bd8150a74ad2036f1037e6a0428df2 (diff) | |
download | linux-650c919798c71fb34b77a6f2ba03a06907f06a76.tar.xz |
Merge tag 'v4.2' into for_next
Linux 4.2
Diffstat (limited to 'drivers/gpu/drm/armada/armada_overlay.c')
-rw-r--r-- | drivers/gpu/drm/armada/armada_overlay.c | 121 |
1 files changed, 75 insertions, 46 deletions
diff --git a/drivers/gpu/drm/armada/armada_overlay.c b/drivers/gpu/drm/armada/armada_overlay.c index c5b06fd..e939fab 100644 --- a/drivers/gpu/drm/armada/armada_overlay.c +++ b/drivers/gpu/drm/armada/armada_overlay.c @@ -7,6 +7,7 @@ * published by the Free Software Foundation. */ #include <drm/drmP.h> +#include <drm/drm_plane_helper.h> #include "armada_crtc.h" #include "armada_drm.h" #include "armada_fb.h" @@ -85,16 +86,8 @@ static void armada_plane_vbl(struct armada_crtc *dcrtc, void *data) if (fb) armada_drm_queue_unref_work(dcrtc->crtc.dev, fb); -} -static unsigned armada_limit(int start, unsigned size, unsigned max) -{ - int end = start + size; - if (end < 0) - return 0; - if (start < 0) - start = 0; - return (unsigned)end > max ? max - start : end - start; + wake_up(&dplane->vbl.wait); } static int @@ -105,26 +98,39 @@ armada_plane_update(struct drm_plane *plane, struct drm_crtc *crtc, { struct armada_plane *dplane = drm_to_armada_plane(plane); struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc); + struct drm_rect src = { + .x1 = src_x, + .y1 = src_y, + .x2 = src_x + src_w, + .y2 = src_y + src_h, + }; + struct drm_rect dest = { + .x1 = crtc_x, + .y1 = crtc_y, + .x2 = crtc_x + crtc_w, + .y2 = crtc_y + crtc_h, + }; + const struct drm_rect clip = { + .x2 = crtc->mode.hdisplay, + .y2 = crtc->mode.vdisplay, + }; uint32_t val, ctrl0; unsigned idx = 0; + bool visible; int ret; - crtc_w = armada_limit(crtc_x, crtc_w, dcrtc->crtc.mode.hdisplay); - crtc_h = armada_limit(crtc_y, crtc_h, dcrtc->crtc.mode.vdisplay); + ret = drm_plane_helper_check_update(plane, crtc, fb, &src, &dest, &clip, + 0, INT_MAX, true, false, &visible); + if (ret) + return ret; + ctrl0 = CFG_DMA_FMT(drm_fb_to_armada_fb(fb)->fmt) | CFG_DMA_MOD(drm_fb_to_armada_fb(fb)->mod) | CFG_CBSH_ENA | CFG_DMA_HSMOOTH | CFG_DMA_ENA; /* Does the position/size result in nothing to display? */ - if (crtc_w == 0 || crtc_h == 0) { + if (!visible) ctrl0 &= ~CFG_DMA_ENA; - } - - /* - * FIXME: if the starting point is off screen, we need to - * adjust src_x, src_y, src_w, src_h appropriately, and - * according to the scale. - */ if (!dcrtc->plane) { dcrtc->plane = plane; @@ -134,15 +140,19 @@ armada_plane_update(struct drm_plane *plane, struct drm_crtc *crtc, /* FIXME: overlay on an interlaced display */ /* Just updating the position/size? */ if (plane->fb == fb && dplane->ctrl0 == ctrl0) { - val = (src_h & 0xffff0000) | src_w >> 16; + val = (drm_rect_height(&src) & 0xffff0000) | + drm_rect_width(&src) >> 16; dplane->src_hw = val; writel_relaxed(val, dcrtc->base + LCD_SPU_DMA_HPXL_VLN); - val = crtc_h << 16 | crtc_w; + + val = drm_rect_height(&dest) << 16 | drm_rect_width(&dest); dplane->dst_hw = val; writel_relaxed(val, dcrtc->base + LCD_SPU_DZM_HPXL_VLN); - val = crtc_y << 16 | crtc_x; + + val = dest.y1 << 16 | dest.x1; dplane->dst_yx = val; writel_relaxed(val, dcrtc->base + LCD_SPU_DMA_OVSA_HPXL_VLN); + return 0; } else if (~dplane->ctrl0 & ctrl0 & CFG_DMA_ENA) { /* Power up the Y/U/V FIFOs on ENA 0->1 transitions */ @@ -150,15 +160,14 @@ armada_plane_update(struct drm_plane *plane, struct drm_crtc *crtc, dcrtc->base + LCD_SPU_SRAM_PARA1); } - ret = wait_event_timeout(dplane->vbl.wait, - list_empty(&dplane->vbl.update.node), - HZ/25); - if (ret < 0) - return ret; + wait_event_timeout(dplane->vbl.wait, + list_empty(&dplane->vbl.update.node), + HZ/25); if (plane->fb != fb) { struct armada_gem_object *obj = drm_fb_obj(fb); - uint32_t sy, su, sv; + uint32_t addr[3], pixel_format; + int i, num_planes, hsub; /* * Take a reference on the new framebuffer - we want to @@ -178,26 +187,39 @@ armada_plane_update(struct drm_plane *plane, struct drm_crtc *crtc, older_fb); } - src_y >>= 16; - src_x >>= 16; - sy = obj->dev_addr + fb->offsets[0] + src_y * fb->pitches[0] + - src_x * fb->bits_per_pixel / 8; - su = obj->dev_addr + fb->offsets[1] + src_y * fb->pitches[1] + - src_x; - sv = obj->dev_addr + fb->offsets[2] + src_y * fb->pitches[2] + - src_x; + src_y = src.y1 >> 16; + src_x = src.x1 >> 16; - armada_reg_queue_set(dplane->vbl.regs, idx, sy, + pixel_format = fb->pixel_format; + hsub = drm_format_horz_chroma_subsampling(pixel_format); + num_planes = drm_format_num_planes(pixel_format); + + /* + * Annoyingly, shifting a YUYV-format image by one pixel + * causes the U/V planes to toggle. Toggle the UV swap. + * (Unfortunately, this causes momentary colour flickering.) + */ + if (src_x & (hsub - 1) && num_planes == 1) + ctrl0 ^= CFG_DMA_MOD(CFG_SWAPUV); + + for (i = 0; i < num_planes; i++) + addr[i] = obj->dev_addr + fb->offsets[i] + + src_y * fb->pitches[i] + + src_x * drm_format_plane_cpp(pixel_format, i); + for (; i < ARRAY_SIZE(addr); i++) + addr[i] = 0; + + armada_reg_queue_set(dplane->vbl.regs, idx, addr[0], LCD_SPU_DMA_START_ADDR_Y0); - armada_reg_queue_set(dplane->vbl.regs, idx, su, + armada_reg_queue_set(dplane->vbl.regs, idx, addr[1], LCD_SPU_DMA_START_ADDR_U0); - armada_reg_queue_set(dplane->vbl.regs, idx, sv, + armada_reg_queue_set(dplane->vbl.regs, idx, addr[2], LCD_SPU_DMA_START_ADDR_V0); - armada_reg_queue_set(dplane->vbl.regs, idx, sy, + armada_reg_queue_set(dplane->vbl.regs, idx, addr[0], LCD_SPU_DMA_START_ADDR_Y1); - armada_reg_queue_set(dplane->vbl.regs, idx, su, + armada_reg_queue_set(dplane->vbl.regs, idx, addr[1], LCD_SPU_DMA_START_ADDR_U1); - armada_reg_queue_set(dplane->vbl.regs, idx, sv, + armada_reg_queue_set(dplane->vbl.regs, idx, addr[2], LCD_SPU_DMA_START_ADDR_V1); val = fb->pitches[0] << 16 | fb->pitches[0]; @@ -208,24 +230,27 @@ armada_plane_update(struct drm_plane *plane, struct drm_crtc *crtc, LCD_SPU_DMA_PITCH_UV); } - val = (src_h & 0xffff0000) | src_w >> 16; + val = (drm_rect_height(&src) & 0xffff0000) | drm_rect_width(&src) >> 16; if (dplane->src_hw != val) { dplane->src_hw = val; armada_reg_queue_set(dplane->vbl.regs, idx, val, LCD_SPU_DMA_HPXL_VLN); } - val = crtc_h << 16 | crtc_w; + + val = drm_rect_height(&dest) << 16 | drm_rect_width(&dest); if (dplane->dst_hw != val) { dplane->dst_hw = val; armada_reg_queue_set(dplane->vbl.regs, idx, val, LCD_SPU_DZM_HPXL_VLN); } - val = crtc_y << 16 | crtc_x; + + val = dest.y1 << 16 | dest.x1; if (dplane->dst_yx != val) { dplane->dst_yx = val; armada_reg_queue_set(dplane->vbl.regs, idx, val, LCD_SPU_DMA_OVSA_HPXL_VLN); } + if (dplane->ctrl0 != ctrl0) { dplane->ctrl0 = ctrl0; armada_reg_queue_mod(dplane->vbl.regs, idx, ctrl0, @@ -279,7 +304,11 @@ static int armada_plane_disable(struct drm_plane *plane) static void armada_plane_destroy(struct drm_plane *plane) { - kfree(plane); + struct armada_plane *dplane = drm_to_armada_plane(plane); + + drm_plane_cleanup(plane); + + kfree(dplane); } static int armada_plane_set_property(struct drm_plane *plane, |