/* * Copyright © 2011 Intel Corporation * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. * * Authors: * Jesse Barnes * * New plane/sprite handling. * * The older chips had a separate interface for programming plane related * registers; newer ones are much simpler and we can use the new DRM plane * support. */ #include #include #include #include #include #include #include "intel_drv.h" #include "intel_frontbuffer.h" #include #include "i915_drv.h" static bool format_is_yuv(uint32_t format) { switch (format) { case DRM_FORMAT_YUYV: case DRM_FORMAT_UYVY: case DRM_FORMAT_VYUY: case DRM_FORMAT_YVYU: return true; default: return false; } } int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode, int usecs) { /* paranoia */ if (!adjusted_mode->crtc_htotal) return 1; return DIV_ROUND_UP(usecs * adjusted_mode->crtc_clock, 1000 * adjusted_mode->crtc_htotal); } #define VBLANK_EVASION_TIME_US 100 /** * intel_pipe_update_start() - start update of a set of display registers * @crtc: the crtc of which the registers are going to be updated * @start_vbl_count: vblank counter return pointer used for error checking * * Mark the start of an update to pipe registers that should be updated * atomically regarding vblank. If the next vblank will happens within * the next 100 us, this function waits until the vblank passes. * * After a successful call to this function, interrupts will be disabled * until a subsequent call to intel_pipe_update_end(). That is done to * avoid random delays. The value written to @start_vbl_count should be * supplied to intel_pipe_update_end() for error checking. */ void intel_pipe_update_start(struct intel_crtc *crtc) { struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); const struct drm_display_mode *adjusted_mode = &crtc->config->base.adjusted_mode; long timeout = msecs_to_jiffies_timeout(1); int scanline, min, max, vblank_start; wait_queue_head_t *wq = drm_crtc_vblank_waitqueue(&crtc->base); bool need_vlv_dsi_wa = (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) && intel_crtc_has_type(crtc->config, INTEL_OUTPUT_DSI); DEFINE_WAIT(wait); vblank_start = adjusted_mode->crtc_vblank_start; if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) vblank_start = DIV_ROUND_UP(vblank_start, 2); /* FIXME needs to be calibrated sensibly */ min = vblank_start - intel_usecs_to_scanlines(adjusted_mode, VBLANK_EVASION_TIME_US); max = vblank_start - 1; local_irq_disable(); if (min <= 0 || max <= 0) return; if (WARN_ON(drm_crtc_vblank_get(&crtc->base))) return; crtc->debug.min_vbl = min; crtc->debug.max_vbl = max; trace_i915_pipe_update_start(crtc); for (;;) { /* * prepare_to_wait() has a memory barrier, which guarantees * other CPUs can see the task state update by the time we * read the scanline. */ prepare_to_wait(wq, &wait, TASK_UNINTERRUPTIBLE); scanline = intel_get_crtc_scanline(crtc); if (scanline < min || scanline > max) break; if (timeout <= 0) { DRM_ERROR("Potential atomic update failure on pipe %c\n", pipe_name(crtc->pipe)); break; } local_irq_enable(); timeout = schedule_timeout(timeout); local_irq_disable(); } finish_wait(wq, &wait); drm_crtc_vblank_put(&crtc->base); /* * On VLV/CHV DSI the scanline counter would appear to * increment approx. 1/3 of a scanline before start of vblank. * The registers still get latched at start of vblank however. * This means we must not write any registers on the first * line of vblank (since not the whole line is actually in * vblank). And unfortunately we can't use the interrupt to * wait here since it will fire too soon. We could use the * frame start interrupt instead since it will fire after the * critical scanline, but that would require more changes * in the interrupt code. So for now we'll just do the nasty * thing and poll for the bad scanline to pass us by. * * FIXME figure out if BXT+ DSI suffers from this as well */ while (need_vlv_dsi_wa && scanline == vblank_start) scanline = intel_get_crtc_scanline(crtc); crtc->debug.scanline_start = scanline; crtc->debug.start_vbl_time = ktime_get(); crtc->debug.start_vbl_count = intel_crtc_get_vblank_counter(crtc); trace_i915_pipe_update_vblank_evaded(crtc); } /** * intel_pipe_update_end() - end update of a set of display registers * @crtc: the crtc of which the registers were updated * @start_vbl_count: start vblank counter (used for error checking) * * Mark the end of an update started with intel_pipe_update_start(). This * re-enables interrupts and verifies the update was actually completed * before a vblank using the value of @start_vbl_count. */ void intel_pipe_update_end(struct intel_crtc *crtc, struct intel_flip_work *work) { enum pipe pipe = crtc->pipe; int scanline_end = intel_get_crtc_scanline(crtc); u32 end_vbl_count = intel_crtc_get_vblank_counter(crtc); ktime_t end_vbl_time = ktime_get(); struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); if (work) { work->flip_queued_vblank = end_vbl_count; smp_mb__before_atomic(); atomic_set(&work->pending, 1); } trace_i915_pipe_update_end(crtc, end_vbl_count, scanline_end); /* We're still in the vblank-evade critical section, this can't race. * Would be slightly nice to just grab the vblank count and arm the * event outside of the critical section - the spinlock might spin for a * while ... */ if (crtc->base.state->event) { WARN_ON(drm_crtc_vblank_get(&crtc->base) != 0); spin_lock(&crtc->base.dev->event_lock); drm_crtc_arm_vblank_event(&crtc->base, crtc->base.state->event); spin_unlock(&crtc->base.dev->event_lock); crtc->base.state->event = NULL; } local_irq_enable(); if (intel_vgpu_active(dev_priv)) return; if (crtc->debug.start_vbl_count && crtc->debug.start_vbl_count != end_vbl_count) { DRM_ERROR("Atomic update failure on pipe %c (start=%u end=%u) time %lld us, min %d, max %d, scanline start %d, end %d\n", pipe_name(pipe), crtc->debug.start_vbl_count, end_vbl_count, ktime_us_delta(end_vbl_time, crtc->debug.start_vbl_time), crtc->debug.min_vbl, crtc->debug.max_vbl, crtc->debug.scanline_start, scanline_end); } #ifdef CONFIG_DRM_I915_DEBUG_VBLANK_EVADE else if (ktime_us_delta(end_vbl_time, crtc->debug.start_vbl_time) > VBLANK_EVASION_TIME_US) DRM_WARN("Atomic update on pipe (%c) took %lld us, max time under evasion is %u us\n", pipe_name(pipe), ktime_us_delta(end_vbl_time, crtc->debug.start_vbl_time), VBLANK_EVASION_TIME_US); #endif } static void skl_update_plane(struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { struct drm_i915_private *dev_priv = to_i915(plane->base.dev); const struct drm_framebuffer *fb = plane_state->base.fb; enum plane_id plane_id = plane->id; enum pipe pipe = plane->pipe; u32 plane_ctl = plane_state->ctl; const struct drm_intel_sprite_colorkey *key = &plane_state->ckey; u32 surf_addr = plane_state->main.offset; unsigned int rotation = plane_state->base.rotation; u32 stride = skl_plane_stride(fb, 0, rotation); int crtc_x = plane_state->base.dst.x1; int crtc_y = plane_state->base.dst.y1; uint32_t crtc_w = drm_rect_width(&plane_state->base.dst); uint32_t crtc_h = drm_rect_height(&plane_state->base.dst); uint32_t x = plane_state->main.x; uint32_t y = plane_state->main.y; uint32_t src_w = drm_rect_width(&plane_state->base.src) >> 16; uint32_t src_h = drm_rect_height(&plane_state->base.src) >> 16; unsigned long irqflags; /* Sizes are 0 based */ src_w--; src_h--; crtc_w--; crtc_h--; spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); if (IS_GEMINILAKE(dev_priv) || IS_CANNONLAKE(dev_priv)) { I915_WRITE_FW(PLANE_COLOR_CTL(pipe, plane_id), PLANE_COLOR_PIPE_GAMMA_ENABLE | PLANE_COLOR_PIPE_CSC_ENABLE | PLANE_COLOR_PLANE_GAMMA_DISABLE); } if (key->flags) { I915_WRITE_FW(PLANE_KEYVAL(pipe, plane_id), key->min_value); I915_WRITE_FW(PLANE_KEYMAX(pipe, plane_id), key->max_value); I915_WRITE_FW(PLANE_KEYMSK(pipe, plane_id), key->channel_mask); } I915_WRITE_FW(PLANE_OFFSET(pipe, plane_id), (y << 16) | x); I915_WRITE_FW(PLANE_STRIDE(pipe, plane_id), stride); I915_WRITE_FW(PLANE_SIZE(pipe, plane_id), (src_h << 16) | src_w); /* program plane scaler */ if (plane_state->scaler_id >= 0) { int scaler_id = plane_state->scaler_id; const struct intel_scaler *scaler; scaler = &crtc_state->scaler_state.scalers[scaler_id]; I915_WRITE_FW(SKL_PS_CTRL(pipe, scaler_id), PS_SCALER_EN | PS_PLANE_SEL(plane_id) | scaler->mode); I915_WRITE_FW(SKL_PS_PWR_GATE(pipe, scaler_id), 0); I915_WRITE_FW(SKL_PS_WIN_POS(pipe, scaler_id), (crtc_x << 16) | crtc_y); I915_WRITE_FW(SKL_PS_WIN_SZ(pipe, scaler_id), ((crtc_w + 1) << 16)|(crtc_h + 1)); I915_WRITE_FW(PLANE_POS(pipe, plane_id), 0); } else { I915_WRITE_FW(PLANE_POS(pipe, plane_id), (crtc_y << 16) | crtc_x); } I915_WRITE_FW(PLANE_CTL(pipe, plane_id), plane_ctl); I915_WRITE_FW(PLANE_SURF(pipe, plane_id), intel_plane_ggtt_offset(plane_state) + surf_addr); POSTING_READ_FW(PLANE_SURF(pipe, plane_id)); spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags); } static void skl_disable_plane(struct intel_plane *plane, struct intel_crtc *crtc) { struct drm_i915_private *dev_priv = to_i915(plane->base.dev); enum plane_id plane_id = plane->id; enum pipe pipe = plane->pipe; unsigned long irqflags; spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); I915_WRITE_FW(PLANE_CTL(pipe, plane_id), 0); I915_WRITE_FW(PLANE_SURF(pipe, plane_id), 0); POSTING_READ_FW(PLANE_SURF(pipe, plane_id)); spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags); } static void chv_update_csc(struct intel_plane *plane, uint32_t format) { struct drm_i915_private *dev_priv = to_i915(plane->base.dev); enum plane_id plane_id = plane->id; /* Seems RGB data bypasses the CSC always */ if (!format_is_yuv(format)) return; /* * BT.601 limited range YCbCr -> full range RGB * * |r| | 6537 4769 0| |cr | * |g| = |-3330 4769 -1605| x |y-64| * |b| | 0 4769 8263| |cb | * * Cb and Cr apparently come in as signed already, so no * need for any offset. For Y we need to remove the offset. */ I915_WRITE_FW(SPCSCYGOFF(plane_id), SPCSC_OOFF(0) | SPCSC_IOFF(-64)); I915_WRITE_FW(SPCSCCBOFF(plane_id), SPCSC_OOFF(0) | SPCSC_IOFF(0)); I915_WRITE_FW(SPCSCCROFF(plane_id), SPCSC_OOFF(0) | SPCSC_IOFF(0)); I915_WRITE_FW(SPCSCC01(plane_id), SPCSC_C1(4769) | SPCSC_C0(6537)); I915_WRITE_FW(SPCSCC23(plane_id), SPCSC_C1(-3330) | SPCSC_C0(0)); I915_WRITE_FW(SPCSCC45(plane_id), SPCSC_C1(-1605) | SPCSC_C0(4769)); I915_WRITE_FW(SPCSCC67(plane_id), SPCSC_C1(4769) | SPCSC_C0(0)); I915_WRITE_FW(SPCSCC8(plane_id), SPCSC_C0(8263)); I915_WRITE_FW(SPCSCYGICLAMP(plane_id), SPCSC_IMAX(940) | SPCSC_IMIN(64)); I915_WRITE_FW(SPCSCCBICLAMP(plane_id), SPCSC_IMAX(448) | SPCSC_IMIN(-448)); I915_WRITE_FW(SPCSCCRICLAMP(plane_id), SPCSC_IMAX(448) | SPCSC_IMIN(-448)); I915_WRITE_FW(SPCSCYGOCLAMP(plane_id), SPCSC_OMAX(1023) | SPCSC_OMIN(0)); I915_WRITE_FW(SPCSCCBOCLAMP(plane_id), SPCSC_OMAX(1023) | SPCSC_OMIN(0)); I915_WRITE_FW(SPCSCCROCLAMP(plane_id), SPCSC_OMAX(1023) | SPCSC_OMIN(0)); } static u32 vlv_sprite_ctl(const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { const struct drm_framebuffer *fb = plane_state->base.fb; unsigned int rotation = plane_state->base.rotation; const struct drm_intel_sprite_colorkey *key = &plane_state->ckey; u32 sprctl; sprctl = SP_ENABLE | SP_GAMMA_ENABLE; switch (fb->format->format) { case DRM_FORMAT_YUYV: sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_YUYV; break; case DRM_FORMAT_YVYU: sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_YVYU; break; case DRM_FORMAT_UYVY: sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_UYVY; break; case DRM_FORMAT_VYUY: sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_VYUY; break; case DRM_FORMAT_RGB565: sprctl |= SP_FORMAT_BGR565; break; case DRM_FORMAT_XRGB8888: sprctl |= SP_FORMAT_BGRX8888; break; case DRM_FORMAT_ARGB8888: sprctl |= SP_FORMAT_BGRA8888; break; case DRM_FORMAT_XBGR2101010: sprctl |= SP_FORMAT_RGBX1010102; break; case DRM_FORMAT_ABGR2101010: sprctl |= SP_FORMAT_RGBA1010102; break; case DRM_FORMAT_XBGR8888: sprctl |= SP_FORMAT_RGBX8888; break; case DRM_FORMAT_ABGR8888: sprctl |= SP_FORMAT_RGBA8888; break; default: MISSING_CASE(fb->format->format); return 0; } if (fb->modifier == I915_FORMAT_MOD_X_TILED) sprctl |= SP_TILED; if (rotation & DRM_MODE_ROTATE_180) sprctl |= SP_ROTATE_180; if (rotation & DRM_MODE_REFLECT_X) sprctl |= SP_MIRROR; if (key->flags & I915_SET_COLORKEY_SOURCE) sprctl |= SP_SOURCE_KEY; return sprctl; } static void vlv_update_plane(struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { struct drm_i915_private *dev_priv = to_i915(plane->base.dev); const struct drm_framebuffer *fb = plane_state->base.fb; enum pipe pipe = plane->pipe; enum plane_id plane_id = plane->id; u32 sprctl = plane_state->ctl; u32 sprsurf_offset = plane_state->main.offset; u32 linear_offset; const struct drm_intel_sprite_colorkey *key = &plane_state->ckey; int crtc_x = plane_state->base.dst.x1; int crtc_y = plane_state->base.dst.y1; uint32_t crtc_w = drm_rect_width(&plane_state->base.dst); uint32_t crtc_h = drm_rect_height(&plane_state->base.dst); uint32_t x = plane_state->main.x; uint32_t y = plane_state->main.y; unsigned long irqflags; /* Sizes are 0 based */ crtc_w--; crtc_h--; linear_offset = intel_fb_xy_to_linear(x, y, plane_state, 0); spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_B) chv_update_csc(plane, fb->format->format); if (key->flags) { I915_WRITE_FW(SPKEYMINVAL(pipe, plane_id), key->min_value); I915_WRITE_FW(SPKEYMAXVAL(pipe, plane_id), key->max_value); I915_WRITE_FW(SPKEYMSK(pipe, plane_id), key->channel_mask); } I915_WRITE_FW(SPSTRIDE(pipe, plane_id), fb->pitches[0]); I915_WRITE_FW(SPPOS(pipe, plane_id), (crtc_y << 16) | crtc_x); if (fb->modifier == I915_FORMAT_MOD_X_TILED) I915_WRITE_FW(SPTILEOFF(pipe, plane_id), (y << 16) | x); else I915_WRITE_FW(SPLINOFF(pipe, plane_id), linear_offset); I915_WRITE_FW(SPCONSTALPHA(pipe, plane_id), 0); I915_WRITE_FW(SPSIZE(pipe, plane_id), (crtc_h << 16) | crtc_w); I915_WRITE_FW(SPCNTR(pipe, plane_id), sprctl); I915_WRITE_FW(SPSURF(pipe, plane_id), intel_plane_ggtt_offset(plane_state) + sprsurf_offset); POSTING_READ_FW(SPSURF(pipe, plane_id)); spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags); } static void vlv_disable_plane(struct intel_plane *plane, struct intel_crtc *crtc) { struct drm_i915_private *dev_priv = to_i915(plane->base.dev); enum pipe pipe = plane->pipe; enum plane_id plane_id = plane->id; unsigned long irqflags; spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); I915_WRITE_FW(SPCNTR(pipe, plane_id), 0); I915_WRITE_FW(SPSURF(pipe, plane_id), 0); POSTING_READ_FW(SPSURF(pipe, plane_id)); spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags); } static u32 ivb_sprite_ctl(const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { struct drm_i915_private *dev_priv = to_i915(plane_state->base.plane->dev); const struct drm_framebuffer *fb = plane_state->base.fb; unsigned int rotation = plane_state->base.rotation; const struct drm_intel_sprite_colorkey *key = &plane_state->ckey; u32 sprctl; sprctl = SPRITE_ENABLE | SPRITE_GAMMA_ENABLE; if (IS_IVYBRIDGE(dev_priv)) sprctl |= SPRITE_TRICKLE_FEED_DISABLE; if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) sprctl |= SPRITE_PIPE_CSC_ENABLE; switch (fb->format->format) { case DRM_FORMAT_XBGR8888: sprctl |= SPRITE_FORMAT_RGBX888 | SPRITE_RGB_ORDER_RGBX; break; case DRM_FORMAT_XRGB8888: sprctl |= SPRITE_FORMAT_RGBX888; break; case DRM_FORMAT_YUYV: sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_YUYV; break; case DRM_FORMAT_YVYU: sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_YVYU; break; case DRM_FORMAT_UYVY: sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_UYVY; break; case DRM_FORMAT_VYUY: sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_VYUY; break; default: MISSING_CASE(fb->format->format); return 0; } if (fb->modifier == I915_FORMAT_MOD_X_TILED) sprctl |= SPRITE_TILED; if (rotation & DRM_MODE_ROTATE_180) sprctl |= SPRITE_ROTATE_180; if (key->flags & I915_SET_COLORKEY_DESTINATION) sprctl |= SPRITE_DEST_KEY; else if (key->flags & I915_SET_COLORKEY_SOURCE) sprctl |= SPRITE_SOURCE_KEY; return sprctl; } static void ivb_update_plane(struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { struct drm_i915_private *dev_priv = to_i915(plane->base.dev); const struct drm_framebuffer *fb = plane_state->base.fb; enum pipe pipe = plane->pipe; u32 sprctl = plane_state->ctl, sprscale = 0; u32 sprsurf_offset = plane_state->main.offset; u32 linear_offset; const struct drm_intel_sprite_colorkey *key = &plane_state->ckey; int crtc_x = plane_state->base.dst.x1; int crtc_y = plane_state->base.dst.y1; uint32_t crtc_w = drm_rect_width(&plane_state->base.dst); uint32_t crtc_h = drm_rect_height(&plane_state->base.dst); uint32_t x = plane_state->main.x; uint32_t y = plane_state->main.y; uint32_t src_w = drm_rect_width(&plane_state->base.src) >> 16; uint32_t src_h = drm_rect_height(&plane_state->base.src) >> 16; unsigned long irqflags; /* Sizes are 0 based */ src_w--; src_h--; crtc_w--; crtc_h--; if (crtc_w != src_w || crtc_h != src_h) sprscale = SPRITE_SCALE_ENABLE | (src_w << 16) | src_h; linear_offset = intel_fb_xy_to_linear(x, y, plane_state, 0); spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); if (key->flags) { I915_WRITE_FW(SPRKEYVAL(pipe), key->min_value); I915_WRITE_FW(SPRKEYMAX(pipe), key->max_value); I915_WRITE_FW(SPRKEYMSK(pipe), key->channel_mask); } I915_WRITE_FW(SPRSTRIDE(pipe), fb->pitches[0]); I915_WRITE_FW(SPRPOS(pipe), (crtc_y << 16) | crtc_x); /* HSW consolidates SPRTILEOFF and SPRLINOFF into a single SPROFFSET * register */ if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) I915_WRITE_FW(SPROFFSET(pipe), (y << 16) | x); else if (fb->modifier == I915_FORMAT_MOD_X_TILED) I915_WRITE_FW(SPRTILEOFF(pipe), (y << 16) | x); else I915_WRITE_FW(SPRLINOFF(pipe), linear_offset); I915_WRITE_FW(SPRSIZE(pipe), (crtc_h << 16) | crtc_w); if (plane->can_scale) I915_WRITE_FW(SPRSCALE(pipe), sprscale); I915_WRITE_FW(SPRCTL(pipe), sprctl); I915_WRITE_FW(SPRSURF(pipe), intel_plane_ggtt_offset(plane_state) + sprsurf_offset); POSTING_READ_FW(SPRSURF(pipe)); spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags); } static void ivb_disable_plane(struct intel_plane *plane, struct intel_crtc *crtc) { struct drm_i915_private *dev_priv = to_i915(plane->base.dev); enum pipe pipe = plane->pipe; unsigned long irqflags; spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); I915_WRITE_FW(SPRCTL(pipe), 0); /* Can't leave the scaler enabled... */ if (plane->can_scale) I915_WRITE_FW(SPRSCALE(pipe), 0); I915_WRITE_FW(SPRSURF(pipe), 0); POSTING_READ_FW(SPRSURF(pipe)); spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags); } static u32 g4x_sprite_ctl(const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { struct drm_i915_private *dev_priv = to_i915(plane_state->base.plane->dev); const struct drm_framebuffer *fb = plane_state->base.fb; unsigned int rotation = plane_state->base.rotation; const struct drm_intel_sprite_colorkey *key = &plane_state->ckey; u32 dvscntr; dvscntr = DVS_ENABLE | DVS_GAMMA_ENABLE; if (IS_GEN6(dev_priv)) dvscntr |= DVS_TRICKLE_FEED_DISABLE; switch (fb->format->format) { case DRM_FORMAT_XBGR8888: dvscntr |= DVS_FORMAT_RGBX888 | DVS_RGB_ORDER_XBGR; break; case DRM_FORMAT_XRGB8888: dvscntr |= DVS_FORMAT_RGBX888; break; case DRM_FORMAT_YUYV: dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_YUYV; break; case DRM_FORMAT_YVYU: dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_YVYU; break; case DRM_FORMAT_UYVY: dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_UYVY; break; case DRM_FORMAT_VYUY: dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_VYUY; break; default: MISSING_CASE(fb->format->format); return 0; } if (fb->modifier == I915_FORMAT_MOD_X_TILED) dvscntr |= DVS_TILED; if (rotation & DRM_MODE_ROTATE_180) dvscntr |= DVS_ROTATE_180; if (key->flags & I915_SET_COLORKEY_DESTINATION) dvscntr |= DVS_DEST_KEY; else if (key->flags & I915_SET_COLORKEY_SOURCE) dvscntr |= DVS_SOURCE_KEY; return dvscntr; } static void g4x_update_plane(struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { struct drm_i915_private *dev_priv = to_i915(plane->base.dev); const struct drm_framebuffer *fb = plane_state->base.fb; enum pipe pipe = plane->pipe; u32 dvscntr = plane_state->ctl, dvsscale = 0; u32 dvssurf_offset = plane_state->main.offset; u32 linear_offset; const struct drm_intel_sprite_colorkey *key = &plane_state->ckey; int crtc_x = plane_state->base.dst.x1; int crtc_y = plane_state->base.dst.y1; uint32_t crtc_w = drm_rect_width(&plane_state->base.dst); uint32_t crtc_h = drm_rect_height(&plane_state->base.dst); uint32_t x = plane_state->main.x; uint32_t y = plane_state->main.y; uint32_t src_w = drm_rect_width(&plane_state->base.src) >> 16; uint32_t src_h = drm_rect_height(&plane_state->base.src) >> 16; unsigned long irqflags; /* Sizes are 0 based */ src_w--; src_h--; crtc_w--; crtc_h--; if (crtc_w != src_w || crtc_h != src_h) dvsscale = DVS_SCALE_ENABLE | (src_w << 16) | src_h; linear_offset = intel_fb_xy_to_linear(x, y, plane_state, 0); spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); if (key->flags) { I915_WRITE_FW(DVSKEYVAL(pipe), key->min_value); I915_WRITE_FW(DVSKEYMAX(pipe), key->max_value); I915_WRITE_FW(DVSKEYMSK(pipe), key->channel_mask); } I915_WRITE_FW(DVSSTRIDE(pipe), fb->pitches[0]); I915_WRITE_FW(DVSPOS(pipe), (crtc_y << 16) | crtc_x); if (fb->modifier == I915_FORMAT_MOD_X_TILED) I915_WRITE_FW(DVSTILEOFF(pipe), (y << 16) | x); else I915_WRITE_FW(DVSLINOFF(pipe), linear_offset); I915_WRITE_FW(DVSSIZE(pipe), (crtc_h << 16) | crtc_w); I915_WRITE_FW(DVSSCALE(pipe), dvsscale); I915_WRITE_FW(DVSCNTR(pipe), dvscntr); I915_WRITE_FW(DVSSURF(pipe), intel_plane_ggtt_offset(plane_state) + dvssurf_offset); POSTING_READ_FW(DVSSURF(pipe)); spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags); } static void g4x_disable_plane(struct intel_plane *plane, struct intel_crtc *crtc) { struct drm_i915_private *dev_priv = to_i915(plane->base.dev); enum pipe pipe = plane->pipe; unsigned long irqflags; spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); I915_WRITE_FW(DVSCNTR(pipe), 0); /* Disable the scaler */ I915_WRITE_FW(DVSSCALE(pipe), 0); I915_WRITE_FW(DVSSURF(pipe), 0); POSTING_READ_FW(DVSSURF(pipe)); spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags); } static int intel_check_sprite_plane(struct intel_plane *plane, struct intel_crtc_state *crtc_state, struct intel_plane_state *state) { struct drm_i915_private *dev_priv = to_i915(plane->base.dev); struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); struct drm_framebuffer *fb = state->base.fb; int crtc_x, crtc_y; unsigned int crtc_w, crtc_h; uint32_t src_x, src_y, src_w, src_h; struct drm_rect *src = &state->base.src; struct drm_rect *dst = &state->base.dst; const struct drm_rect *clip = &state->clip; int hscale, vscale; int max_scale, min_scale; bool can_scale; int ret; *src = drm_plane_state_src(&state->base); *dst = drm_plane_state_dest(&state->base); if (!fb) { state->base.visible = false; return 0; } /* Don't modify another pipe's plane */ if (plane->pipe != crtc->pipe) { DRM_DEBUG_KMS("Wrong plane <-> crtc mapping\n"); return -EINVAL; } /* FIXME check all gen limits */ if (fb->width < 3 || fb->height < 3 || fb->pitches[0] > 16384) { DRM_DEBUG_KMS("Unsuitable framebuffer for plane\n"); return -EINVAL; } /* setup can_scale, min_scale, max_scale */ if (INTEL_GEN(dev_priv) >= 9) { /* use scaler when colorkey is not required */ if (state->ckey.flags == I915_SET_COLORKEY_NONE) { can_scale = 1; min_scale = 1; max_scale = skl_max_scale(crtc, crtc_state); } else { can_scale = 0; min_scale = DRM_PLANE_HELPER_NO_SCALING; max_scale = DRM_PLANE_HELPER_NO_SCALING; } } else { can_scale = plane->can_scale; max_scale = plane->max_downscale << 16; min_scale = plane->can_scale ? 1 : (1 << 16); } /* * FIXME the following code does a bunch of fuzzy adjustments to the * coordinates and sizes. We probably need some way to decide whether * more strict checking should be done instead. */ drm_rect_rotate(src, fb->width << 16, fb->height << 16, state->base.rotation); hscale = drm_rect_calc_hscale_relaxed(src, dst, min_scale, max_scale); BUG_ON(hscale < 0); vscale = drm_rect_calc_vscale_relaxed(src, dst, min_scale, max_scale); BUG_ON(vscale < 0); state->base.visible = drm_rect_clip_scaled(src, dst, clip, hscale, vscale); crtc_x = dst->x1; crtc_y = dst->y1; crtc_w = drm_rect_width(dst); crtc_h = drm_rect_height(dst); if (state->base.visible) { /* check again in case clipping clamped the results */ hscale = drm_rect_calc_hscale(src, dst, min_scale, max_scale); if (hscale < 0) { DRM_DEBUG_KMS("Horizontal scaling factor out of limits\n"); drm_rect_debug_print("src: ", src, true); drm_rect_debug_print("dst: ", dst, false); return hscale; } vscale = drm_rect_calc_vscale(src, dst, min_scale, max_scale); if (vscale < 0) { DRM_DEBUG_KMS("Vertical scaling factor out of limits\n"); drm_rect_debug_print("src: ", src, true); drm_rect_debug_print("dst: ", dst, false); return vscale; } /* Make the source viewport size an exact multiple of the scaling factors. */ drm_rect_adjust_size(src, drm_rect_width(dst) * hscale - drm_rect_width(src), drm_rect_height(dst) * vscale - drm_rect_height(src)); drm_rect_rotate_inv(src, fb->width << 16, fb->height << 16, state->base.rotation); /* sanity check to make sure the src viewport wasn't enlarged */ WARN_ON(src->x1 < (int) state->base.src_x || src->y1 < (int) state->base.src_y || src->x2 > (int) state->base.src_x + state->base.src_w || src->y2 > (int) state->base.src_y + state->base.src_h); /* * Hardware doesn't handle subpixel coordinates. * Adjust to (macro)pixel boundary, but be careful not to * increase the source viewport size, because that could * push the downscaling factor out of bounds. */ src_x = src->x1 >> 16; src_w = drm_rect_width(src) >> 16; src_y = src->y1 >> 16; src_h = drm_rect_height(src) >> 16; if (format_is_yuv(fb->format->format)) { src_x &= ~1; src_w &= ~1; /* * Must keep src and dst the * same if we can't scale. */ if (!can_scale) crtc_w &= ~1; if (crtc_w == 0) state->base.visible = false; } } /* Check size restrictions when scaling */ if (state->base.visible && (src_w != crtc_w || src_h != crtc_h)) { unsigned int width_bytes; int cpp = fb->format->cpp[0]; WARN_ON(!can_scale); /* FIXME interlacing min height is 6 */ if (crtc_w < 3 || crtc_h < 3) state->base.visible = false; if (src_w < 3 || src_h < 3) state->base.visible = false; width_bytes = ((src_x * cpp) & 63) + src_w * cpp; if (INTEL_GEN(dev_priv) < 9 && (src_w > 2048 || src_h > 2048 || width_bytes > 4096 || fb->pitches[0] > 4096)) { DRM_DEBUG_KMS("Source dimensions exceed hardware limits\n"); return -EINVAL; } } if (state->base.visible) { src->x1 = src_x << 16; src->x2 = (src_x + src_w) << 16; src->y1 = src_y << 16; src->y2 = (src_y + src_h) << 16; } dst->x1 = crtc_x; dst->x2 = crtc_x + crtc_w; dst->y1 = crtc_y; dst->y2 = crtc_y + crtc_h; if (INTEL_GEN(dev_priv) >= 9) { ret = skl_check_plane_surface(state); if (ret) return ret; state->ctl = skl_plane_ctl(crtc_state, state); } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) { ret = i9xx_check_plane_surface(state); if (ret) return ret; state->ctl = vlv_sprite_ctl(crtc_state, state); } else if (INTEL_GEN(dev_priv) >= 7) { ret = i9xx_check_plane_surface(state); if (ret) return ret; state->ctl = ivb_sprite_ctl(crtc_state, state); } else { ret = i9xx_check_plane_surface(state); if (ret) return ret; state->ctl = g4x_sprite_ctl(crtc_state, state); } return 0; } int intel_sprite_set_colorkey(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_i915_private *dev_priv = to_i915(dev); struct drm_intel_sprite_colorkey *set = data; struct drm_plane *plane; struct drm_plane_state *plane_state; struct drm_atomic_state *state; struct drm_modeset_acquire_ctx ctx; int ret = 0; /* Make sure we don't try to enable both src & dest simultaneously */ if ((set->flags & (I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE)) == (I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE)) return -EINVAL; if ((IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) && set->flags & I915_SET_COLORKEY_DESTINATION) return -EINVAL; plane = drm_plane_find(dev, set->plane_id); if (!plane || plane->type != DRM_PLANE_TYPE_OVERLAY) return -ENOENT; drm_modeset_acquire_init(&ctx, 0); state = drm_atomic_state_alloc(plane->dev); if (!state) { ret = -ENOMEM; goto out; } state->acquire_ctx = &ctx; while (1) { plane_state = drm_atomic_get_plane_state(state, plane); ret = PTR_ERR_OR_ZERO(plane_state); if (!ret) { to_intel_plane_state(plane_state)->ckey = *set; ret = drm_atomic_commit(state); } if (ret != -EDEADLK) break; drm_atomic_state_clear(state); drm_modeset_backoff(&ctx); } drm_atomic_state_put(state); out: drm_modeset_drop_locks(&ctx); drm_modeset_acquire_fini(&ctx); return ret; } static const uint32_t g4x_plane_formats[] = { DRM_FORMAT_XRGB8888, DRM_FORMAT_YUYV, DRM_FORMAT_YVYU, DRM_FORMAT_UYVY, DRM_FORMAT_VYUY, }; static const uint32_t snb_plane_formats[] = { DRM_FORMAT_XBGR8888, DRM_FORMAT_XRGB8888, DRM_FORMAT_YUYV, DRM_FORMAT_YVYU, DRM_FORMAT_UYVY, DRM_FORMAT_VYUY, }; static const uint32_t vlv_plane_formats[] = { DRM_FORMAT_RGB565, DRM_FORMAT_ABGR8888, DRM_FORMAT_ARGB8888, DRM_FORMAT_XBGR8888, DRM_FORMAT_XRGB8888, DRM_FORMAT_XBGR2101010, DRM_FORMAT_ABGR2101010, DRM_FORMAT_YUYV, DRM_FORMAT_YVYU, DRM_FORMAT_UYVY, DRM_FORMAT_VYUY, }; static uint32_t skl_plane_formats[] = { DRM_FORMAT_RGB565, DRM_FORMAT_ABGR8888, DRM_FORMAT_ARGB8888, DRM_FORMAT_XBGR8888, DRM_FORMAT_XRGB8888, DRM_FORMAT_YUYV, DRM_FORMAT_YVYU, DRM_FORMAT_UYVY, DRM_FORMAT_VYUY, }; struct intel_plane * intel_sprite_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe, int plane) { struct intel_plane *intel_plane = NULL; struct intel_plane_state *state = NULL; unsigned long possible_crtcs; const uint32_t *plane_formats; unsigned int supported_rotations; int num_plane_formats; int ret; intel_plane = kzalloc(sizeof(*intel_plane), GFP_KERNEL); if (!intel_plane) { ret = -ENOMEM; goto fail; } state = intel_create_plane_state(&intel_plane->base); if (!state) { ret = -ENOMEM; goto fail; } intel_plane->base.state = &state->base; if (INTEL_GEN(dev_priv) >= 9) { intel_plane->can_scale = true; state->scaler_id = -1; intel_plane->update_plane = skl_update_plane; intel_plane->disable_plane = skl_disable_plane; plane_formats = skl_plane_formats; num_plane_formats = ARRAY_SIZE(skl_plane_formats); } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) { intel_plane->can_scale = false; intel_plane->max_downscale = 1; intel_plane->update_plane = vlv_update_plane; intel_plane->disable_plane = vlv_disable_plane; plane_formats = vlv_plane_formats; num_plane_formats = ARRAY_SIZE(vlv_plane_formats); } else if (INTEL_GEN(dev_priv) >= 7) { if (IS_IVYBRIDGE(dev_priv)) { intel_plane->can_scale = true; intel_plane->max_downscale = 2; } else { intel_plane->can_scale = false; intel_plane->max_downscale = 1; } intel_plane->update_plane = ivb_update_plane; intel_plane->disable_plane = ivb_disable_plane; plane_formats = snb_plane_formats; num_plane_formats = ARRAY_SIZE(snb_plane_formats); } else { intel_plane->can_scale = true; intel_plane->max_downscale = 16; intel_plane->update_plane = g4x_update_plane; intel_plane->disable_plane = g4x_disable_plane; if (IS_GEN6(dev_priv)) { plane_formats = snb_plane_formats; num_plane_formats = ARRAY_SIZE(snb_plane_formats); } else { plane_formats = g4x_plane_formats; num_plane_formats = ARRAY_SIZE(g4x_plane_formats); } } if (INTEL_GEN(dev_priv) >= 9) { supported_rotations = DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_90 | DRM_MODE_ROTATE_180 | DRM_MODE_ROTATE_270; } else if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_B) { supported_rotations = DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_180 | DRM_MODE_REFLECT_X; } else { supported_rotations = DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_180; } intel_plane->pipe = pipe; intel_plane->plane = plane; intel_plane->id = PLANE_SPRITE0 + plane; intel_plane->frontbuffer_bit = INTEL_FRONTBUFFER_SPRITE(pipe, plane); intel_plane->check_plane = intel_check_sprite_plane; possible_crtcs = (1 << pipe); if (INTEL_GEN(dev_priv) >= 9) ret = drm_universal_plane_init(&dev_priv->drm, &intel_plane->base, possible_crtcs, &intel_plane_funcs, plane_formats, num_plane_formats, NULL, DRM_PLANE_TYPE_OVERLAY, "plane %d%c", plane + 2, pipe_name(pipe)); else ret = drm_universal_plane_init(&dev_priv->drm, &intel_plane->base, possible_crtcs, &intel_plane_funcs, plane_formats, num_plane_formats, NULL, DRM_PLANE_TYPE_OVERLAY, "sprite %c", sprite_name(pipe, plane)); if (ret) goto fail; drm_plane_create_rotation_property(&intel_plane->base, DRM_MODE_ROTATE_0, supported_rotations); drm_plane_helper_add(&intel_plane->base, &intel_plane_helper_funcs); return intel_plane; fail: kfree(state); kfree(intel_plane); return ERR_PTR(ret); }