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author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-15 20:42:10 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-15 20:42:10 -0800 |
commit | e60e1ee60630cafef5e430c2ae364877e061d980 (patch) | |
tree | 816aeef8fe8d4a2c6a1ebbc7a350839bac8dd4c2 /drivers/gpu/drm/tve200/tve200_display.c | |
parent | 5d352e69c60e54b5f04d6e337a1d2bf0dbf3d94a (diff) | |
parent | f150891fd9878ef0d9197c4e8451ce67c3bdd014 (diff) | |
download | linux-stable-e60e1ee60630cafef5e430c2ae364877e061d980.tar.gz linux-stable-e60e1ee60630cafef5e430c2ae364877e061d980.tar.bz2 linux-stable-e60e1ee60630cafef5e430c2ae364877e061d980.zip |
Merge tag 'drm-for-v4.15' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie:
"This is the main drm pull request for v4.15.
Core:
- Atomic object lifetime fixes
- Atomic iterator improvements
- Sparse/smatch fixes
- Legacy kms ioctls to be interruptible
- EDID override improvements
- fb/gem helper cleanups
- Simple outreachy patches
- Documentation improvements
- Fix dma-buf rcu races
- DRM mode object leasing for improving VR use cases.
- vgaarb improvements for non-x86 platforms.
New driver:
- tve200: Faraday Technology TVE200 block.
This "TV Encoder" encodes a ITU-T BT.656 stream and can be found in
the StorLink SL3516 (later Cortina Systems CS3516) as well as the
Grain Media GM8180.
New bridges:
- SiI9234 support
New panels:
- S6E63J0X03, OTM8009A, Seiko 43WVF1G, 7" rpi touch panel, Toshiba
LT089AC19000, Innolux AT043TN24
i915:
- Remove Coffeelake from alpha support
- Cannonlake workarounds
- Infoframe refactoring for DisplayPort
- VBT updates
- DisplayPort vswing/emph/buffer translation refactoring
- CCS fixes
- Restore GPU clock boost on missed vblanks
- Scatter list updates for userptr allocations
- Gen9+ transition watermarks
- Display IPC (Isochronous Priority Control)
- Private PAT management
- GVT: improved error handling and pci config sanitizing
- Execlist refactoring
- Transparent Huge Page support
- User defined priorities support
- HuC/GuC firmware refactoring
- DP MST fixes
- eDP power sequencing fixes
- Use RCU instead of stop_machine
- PSR state tracking support
- Eviction fixes
- BDW DP aux channel timeout fixes
- LSPCON fixes
- Cannonlake PLL fixes
amdgpu:
- Per VM BO support
- Powerplay cleanups
- CI powerplay support
- PASID mgr for kfd
- SR-IOV fixes
- initial GPU reset for vega10
- Prime mmap support
- TTM updates
- Clock query interface for Raven
- Fence to handle ioctl
- UVD encode ring support on Polaris
- Transparent huge page DMA support
- Compute LRU pipe tweaks
- BO flag to allow buffers to opt out of implicit sync
- CTX priority setting API
- VRAM lost infrastructure plumbing
qxl:
- fix flicker since atomic rework
amdkfd:
- Further improvements from internal AMD tree
- Usermode events
- Drop radeon support
nouveau:
- Pascal temperature sensor support
- Improved BAR2 handling
- MMU rework to support Pascal MMU
exynos:
- Improved HDMI/mixer support
- HDMI audio interface support
tegra:
- Prep work for tegra186
- Cleanup/fixes
msm:
- Preemption support for a5xx
- Display fixes for 8x96 (snapdragon 820)
- Async cursor plane fixes
- FW loading rework
- GPU debugging improvements
vc4:
- Prep for DSI panels
- fix T-format tiling scanout
- New madvise ioctl
Rockchip:
- LVDS support
omapdrm:
- omap4 HDMI CEC support
etnaviv:
- GPU performance counters groundwork
sun4i:
- refactor driver load + TCON backend
- HDMI improvements
- A31 support
- Misc fixes
udl:
- Probe/EDID read fixes.
tilcdc:
- Misc fixes.
pl111:
- Support more variants
adv7511:
- Improve EDID handling.
- HDMI CEC support
sii8620:
- Add remote control support"
* tag 'drm-for-v4.15' of git://people.freedesktop.org/~airlied/linux: (1480 commits)
drm/rockchip: analogix_dp: Use mutex rather than spinlock
drm/mode_object: fix documentation for object lookups.
drm/i915: Reorder context-close to avoid calling i915_vma_close() under RCU
drm/i915: Move init_clock_gating() back to where it was
drm/i915: Prune the reservation shared fence array
drm/i915: Idle the GPU before shinking everything
drm/i915: Lock llist_del_first() vs llist_del_all()
drm/i915: Calculate ironlake intermediate watermarks correctly, v2.
drm/i915: Disable lazy PPGTT page table optimization for vGPU
drm/i915/execlists: Remove the priority "optimisation"
drm/i915: Filter out spurious execlists context-switch interrupts
drm/amdgpu: use irq-safe lock for kiq->ring_lock
drm/amdgpu: bypass lru touch for KIQ ring submission
drm/amdgpu: Potential uninitialized variable in amdgpu_vm_update_directories()
drm/amdgpu: potential uninitialized variable in amdgpu_vce_ring_parse_cs()
drm/amd/powerplay: initialize a variable before using it
drm/amd/powerplay: suppress KASAN out of bounds warning in vega10_populate_all_memory_levels
drm/amd/amdgpu: fix evicted VRAM bo adjudgement condition
drm/vblank: Tune drm_crtc_accurate_vblank_count() WARN down to a debug
drm/rockchip: add CONFIG_OF dependency for lvds
...
Diffstat (limited to 'drivers/gpu/drm/tve200/tve200_display.c')
-rw-r--r-- | drivers/gpu/drm/tve200/tve200_display.c | 338 |
1 files changed, 338 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tve200/tve200_display.c b/drivers/gpu/drm/tve200/tve200_display.c new file mode 100644 index 000000000000..2c668bd6d997 --- /dev/null +++ b/drivers/gpu/drm/tve200/tve200_display.c @@ -0,0 +1,338 @@ +/* + * Copyright (C) 2017 Linus Walleij <linus.walleij@linaro.org> + * Parts of this file were based on sources as follows: + * + * Copyright (C) 2006-2008 Intel Corporation + * Copyright (C) 2007 Amos Lee <amos_lee@storlinksemi.com> + * Copyright (C) 2007 Dave Airlie <airlied@linux.ie> + * Copyright (C) 2011 Texas Instruments + * Copyright (C) 2017 Eric Anholt + * + * This program is free software and is provided to you under the terms of the + * GNU General Public License version 2 as published by the Free Software + * Foundation, and any use by you of this program is subject to the terms of + * such GNU licence. + */ +#include <linux/clk.h> +#include <linux/version.h> +#include <linux/dma-buf.h> +#include <linux/of_graph.h> + +#include <drm/drmP.h> +#include <drm/drm_panel.h> +#include <drm/drm_gem_cma_helper.h> +#include <drm/drm_gem_framebuffer_helper.h> +#include <drm/drm_fb_cma_helper.h> + +#include "tve200_drm.h" + +irqreturn_t tve200_irq(int irq, void *data) +{ + struct tve200_drm_dev_private *priv = data; + u32 stat; + u32 val; + + stat = readl(priv->regs + TVE200_INT_STAT); + + if (!stat) + return IRQ_NONE; + + /* + * Vblank IRQ + * + * The hardware is a bit tilted: the line stays high after clearing + * the vblank IRQ, firing many more interrupts. We counter this + * by toggling the IRQ back and forth from firing at vblank and + * firing at start of active image, which works around the problem + * since those occur strictly in sequence, and we get two IRQs for each + * frame, one at start of Vblank (that we make call into the CRTC) and + * another one at the start of the image (that we discard). + */ + if (stat & TVE200_INT_V_STATUS) { + val = readl(priv->regs + TVE200_CTRL); + /* We have an actual start of vsync */ + if (!(val & TVE200_VSTSTYPE_BITS)) { + drm_crtc_handle_vblank(&priv->pipe.crtc); + /* Toggle trigger to start of active image */ + val |= TVE200_VSTSTYPE_VAI; + } else { + /* Toggle trigger back to start of vsync */ + val &= ~TVE200_VSTSTYPE_BITS; + } + writel(val, priv->regs + TVE200_CTRL); + } else + dev_err(priv->drm->dev, "stray IRQ %08x\n", stat); + + /* Clear the interrupt once done */ + writel(stat, priv->regs + TVE200_INT_CLR); + + return IRQ_HANDLED; +} + +static int tve200_display_check(struct drm_simple_display_pipe *pipe, + struct drm_plane_state *pstate, + struct drm_crtc_state *cstate) +{ + const struct drm_display_mode *mode = &cstate->mode; + struct drm_framebuffer *old_fb = pipe->plane.state->fb; + struct drm_framebuffer *fb = pstate->fb; + + /* + * We support these specific resolutions and nothing else. + */ + if (!(mode->hdisplay == 352 && mode->vdisplay == 240) && /* SIF(525) */ + !(mode->hdisplay == 352 && mode->vdisplay == 288) && /* CIF(625) */ + !(mode->hdisplay == 640 && mode->vdisplay == 480) && /* VGA */ + !(mode->hdisplay == 720 && mode->vdisplay == 480) && /* D1 */ + !(mode->hdisplay == 720 && mode->vdisplay == 576)) { /* D1 */ + DRM_DEBUG_KMS("unsupported display mode (%u x %u)\n", + mode->hdisplay, mode->vdisplay); + return -EINVAL; + } + + if (fb) { + u32 offset = drm_fb_cma_get_gem_addr(fb, pstate, 0); + + /* FB base address must be dword aligned. */ + if (offset & 3) { + DRM_DEBUG_KMS("FB not 32-bit aligned\n"); + return -EINVAL; + } + + /* + * There's no pitch register, the mode's hdisplay + * controls this. + */ + if (fb->pitches[0] != mode->hdisplay * fb->format->cpp[0]) { + DRM_DEBUG_KMS("can't handle pitches\n"); + return -EINVAL; + } + + /* + * We can't change the FB format in a flicker-free + * manner (and only update it during CRTC enable). + */ + if (old_fb && old_fb->format != fb->format) + cstate->mode_changed = true; + } + + return 0; +} + +static void tve200_display_enable(struct drm_simple_display_pipe *pipe, + struct drm_crtc_state *cstate) +{ + struct drm_crtc *crtc = &pipe->crtc; + struct drm_plane *plane = &pipe->plane; + struct drm_device *drm = crtc->dev; + struct tve200_drm_dev_private *priv = drm->dev_private; + const struct drm_display_mode *mode = &cstate->mode; + struct drm_framebuffer *fb = plane->state->fb; + struct drm_connector *connector = priv->connector; + u32 format = fb->format->format; + u32 ctrl1 = 0; + + clk_prepare_enable(priv->clk); + + /* Function 1 */ + ctrl1 |= TVE200_CTRL_CSMODE; + /* Interlace mode for CCIR656: parameterize? */ + ctrl1 |= TVE200_CTRL_NONINTERLACE; + /* 32 words per burst */ + ctrl1 |= TVE200_CTRL_BURST_32_WORDS; + /* 16 retries */ + ctrl1 |= TVE200_CTRL_RETRYCNT_16; + /* NTSC mode: parametrize? */ + ctrl1 |= TVE200_CTRL_NTSC; + + /* Vsync IRQ at start of Vsync at first */ + ctrl1 |= TVE200_VSTSTYPE_VSYNC; + + if (connector->display_info.bus_flags & DRM_BUS_FLAG_PIXDATA_NEGEDGE) + ctrl1 |= TVE200_CTRL_TVCLKP; + + if ((mode->hdisplay == 352 && mode->vdisplay == 240) || /* SIF(525) */ + (mode->hdisplay == 352 && mode->vdisplay == 288)) { /* CIF(625) */ + ctrl1 |= TVE200_CTRL_IPRESOL_CIF; + dev_info(drm->dev, "CIF mode\n"); + } else if (mode->hdisplay == 640 && mode->vdisplay == 480) { + ctrl1 |= TVE200_CTRL_IPRESOL_VGA; + dev_info(drm->dev, "VGA mode\n"); + } else if ((mode->hdisplay == 720 && mode->vdisplay == 480) || + (mode->hdisplay == 720 && mode->vdisplay == 576)) { + ctrl1 |= TVE200_CTRL_IPRESOL_D1; + dev_info(drm->dev, "D1 mode\n"); + } + + if (format & DRM_FORMAT_BIG_ENDIAN) { + ctrl1 |= TVE200_CTRL_BBBP; + format &= ~DRM_FORMAT_BIG_ENDIAN; + } + + switch (format) { + case DRM_FORMAT_XRGB8888: + ctrl1 |= TVE200_IPDMOD_RGB888; + break; + case DRM_FORMAT_RGB565: + ctrl1 |= TVE200_IPDMOD_RGB565; + break; + case DRM_FORMAT_XRGB1555: + ctrl1 |= TVE200_IPDMOD_RGB555; + break; + case DRM_FORMAT_XBGR8888: + ctrl1 |= TVE200_IPDMOD_RGB888 | TVE200_BGR; + break; + case DRM_FORMAT_BGR565: + ctrl1 |= TVE200_IPDMOD_RGB565 | TVE200_BGR; + break; + case DRM_FORMAT_XBGR1555: + ctrl1 |= TVE200_IPDMOD_RGB555 | TVE200_BGR; + break; + case DRM_FORMAT_YUYV: + ctrl1 |= TVE200_IPDMOD_YUV422; + ctrl1 |= TVE200_CTRL_YCBCRODR_CR0Y1CB0Y0; + break; + case DRM_FORMAT_YVYU: + ctrl1 |= TVE200_IPDMOD_YUV422; + ctrl1 |= TVE200_CTRL_YCBCRODR_CB0Y1CR0Y0; + break; + case DRM_FORMAT_UYVY: + ctrl1 |= TVE200_IPDMOD_YUV422; + ctrl1 |= TVE200_CTRL_YCBCRODR_Y1CR0Y0CB0; + break; + case DRM_FORMAT_VYUY: + ctrl1 |= TVE200_IPDMOD_YUV422; + ctrl1 |= TVE200_CTRL_YCBCRODR_Y1CB0Y0CR0; + break; + case DRM_FORMAT_YUV420: + ctrl1 |= TVE200_CTRL_YUV420; + ctrl1 |= TVE200_IPDMOD_YUV420; + break; + default: + dev_err(drm->dev, "Unknown FB format 0x%08x\n", + fb->format->format); + break; + } + + ctrl1 |= TVE200_TVEEN; + + /* Turn it on */ + writel(ctrl1, priv->regs + TVE200_CTRL); + + drm_crtc_vblank_on(crtc); +} + +static void tve200_display_disable(struct drm_simple_display_pipe *pipe) +{ + struct drm_crtc *crtc = &pipe->crtc; + struct drm_device *drm = crtc->dev; + struct tve200_drm_dev_private *priv = drm->dev_private; + + drm_crtc_vblank_off(crtc); + + /* Disable and Power Down */ + writel(0, priv->regs + TVE200_CTRL); + + clk_disable_unprepare(priv->clk); +} + +static void tve200_display_update(struct drm_simple_display_pipe *pipe, + struct drm_plane_state *old_pstate) +{ + struct drm_crtc *crtc = &pipe->crtc; + struct drm_device *drm = crtc->dev; + struct tve200_drm_dev_private *priv = drm->dev_private; + struct drm_pending_vblank_event *event = crtc->state->event; + struct drm_plane *plane = &pipe->plane; + struct drm_plane_state *pstate = plane->state; + struct drm_framebuffer *fb = pstate->fb; + + if (fb) { + /* For RGB, the Y component is used as base address */ + writel(drm_fb_cma_get_gem_addr(fb, pstate, 0), + priv->regs + TVE200_Y_FRAME_BASE_ADDR); + + /* For three plane YUV we need two more addresses */ + if (fb->format->format == DRM_FORMAT_YUV420) { + writel(drm_fb_cma_get_gem_addr(fb, pstate, 1), + priv->regs + TVE200_U_FRAME_BASE_ADDR); + writel(drm_fb_cma_get_gem_addr(fb, pstate, 2), + priv->regs + TVE200_V_FRAME_BASE_ADDR); + } + } + + if (event) { + crtc->state->event = NULL; + + spin_lock_irq(&crtc->dev->event_lock); + if (crtc->state->active && drm_crtc_vblank_get(crtc) == 0) + drm_crtc_arm_vblank_event(crtc, event); + else + drm_crtc_send_vblank_event(crtc, event); + spin_unlock_irq(&crtc->dev->event_lock); + } +} + +int tve200_enable_vblank(struct drm_device *drm, unsigned int crtc) +{ + struct tve200_drm_dev_private *priv = drm->dev_private; + + writel(TVE200_INT_V_STATUS, priv->regs + TVE200_INT_EN); + return 0; +} + +void tve200_disable_vblank(struct drm_device *drm, unsigned int crtc) +{ + struct tve200_drm_dev_private *priv = drm->dev_private; + + writel(0, priv->regs + TVE200_INT_EN); +} + +static int tve200_display_prepare_fb(struct drm_simple_display_pipe *pipe, + struct drm_plane_state *plane_state) +{ + return drm_gem_fb_prepare_fb(&pipe->plane, plane_state); +} + +static const struct drm_simple_display_pipe_funcs tve200_display_funcs = { + .check = tve200_display_check, + .enable = tve200_display_enable, + .disable = tve200_display_disable, + .update = tve200_display_update, + .prepare_fb = tve200_display_prepare_fb, +}; + +int tve200_display_init(struct drm_device *drm) +{ + struct tve200_drm_dev_private *priv = drm->dev_private; + int ret; + static const u32 formats[] = { + DRM_FORMAT_XRGB8888, + DRM_FORMAT_XBGR8888, + DRM_FORMAT_RGB565, + DRM_FORMAT_BGR565, + DRM_FORMAT_XRGB1555, + DRM_FORMAT_XBGR1555, + /* + * The controller actually supports any YCbCr ordering, + * for packed YCbCr. This just lists the orderings that + * DRM supports. + */ + DRM_FORMAT_YUYV, + DRM_FORMAT_YVYU, + DRM_FORMAT_UYVY, + DRM_FORMAT_VYUY, + /* This uses three planes */ + DRM_FORMAT_YUV420, + }; + + ret = drm_simple_display_pipe_init(drm, &priv->pipe, + &tve200_display_funcs, + formats, ARRAY_SIZE(formats), + NULL, + priv->connector); + if (ret) + return ret; + + return 0; +} |