diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_overlay.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_overlay.c | 1540 |
1 files changed, 0 insertions, 1540 deletions
diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c deleted file mode 100644 index a3698812e9c7..000000000000 --- a/drivers/gpu/drm/i915/intel_overlay.c +++ /dev/null @@ -1,1540 +0,0 @@ -/* - * Copyright © 2009 - * - * 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: - * Daniel Vetter <daniel@ffwll.ch> - * - * Derived from Xorg ddx, xf86-video-intel, src/i830_video.c - */ -#include <drm/drmP.h> -#include <drm/i915_drm.h> -#include "i915_drv.h" -#include "i915_reg.h" -#include "intel_drv.h" - -/* Limits for overlay size. According to intel doc, the real limits are: - * Y width: 4095, UV width (planar): 2047, Y height: 2047, - * UV width (planar): * 1023. But the xorg thinks 2048 for height and width. Use - * the mininum of both. */ -#define IMAGE_MAX_WIDTH 2048 -#define IMAGE_MAX_HEIGHT 2046 /* 2 * 1023 */ -/* on 830 and 845 these large limits result in the card hanging */ -#define IMAGE_MAX_WIDTH_LEGACY 1024 -#define IMAGE_MAX_HEIGHT_LEGACY 1088 - -/* overlay register definitions */ -/* OCMD register */ -#define OCMD_TILED_SURFACE (0x1<<19) -#define OCMD_MIRROR_MASK (0x3<<17) -#define OCMD_MIRROR_MODE (0x3<<17) -#define OCMD_MIRROR_HORIZONTAL (0x1<<17) -#define OCMD_MIRROR_VERTICAL (0x2<<17) -#define OCMD_MIRROR_BOTH (0x3<<17) -#define OCMD_BYTEORDER_MASK (0x3<<14) /* zero for YUYV or FOURCC YUY2 */ -#define OCMD_UV_SWAP (0x1<<14) /* YVYU */ -#define OCMD_Y_SWAP (0x2<<14) /* UYVY or FOURCC UYVY */ -#define OCMD_Y_AND_UV_SWAP (0x3<<14) /* VYUY */ -#define OCMD_SOURCE_FORMAT_MASK (0xf<<10) -#define OCMD_RGB_888 (0x1<<10) /* not in i965 Intel docs */ -#define OCMD_RGB_555 (0x2<<10) /* not in i965 Intel docs */ -#define OCMD_RGB_565 (0x3<<10) /* not in i965 Intel docs */ -#define OCMD_YUV_422_PACKED (0x8<<10) -#define OCMD_YUV_411_PACKED (0x9<<10) /* not in i965 Intel docs */ -#define OCMD_YUV_420_PLANAR (0xc<<10) -#define OCMD_YUV_422_PLANAR (0xd<<10) -#define OCMD_YUV_410_PLANAR (0xe<<10) /* also 411 */ -#define OCMD_TVSYNCFLIP_PARITY (0x1<<9) -#define OCMD_TVSYNCFLIP_ENABLE (0x1<<7) -#define OCMD_BUF_TYPE_MASK (0x1<<5) -#define OCMD_BUF_TYPE_FRAME (0x0<<5) -#define OCMD_BUF_TYPE_FIELD (0x1<<5) -#define OCMD_TEST_MODE (0x1<<4) -#define OCMD_BUFFER_SELECT (0x3<<2) -#define OCMD_BUFFER0 (0x0<<2) -#define OCMD_BUFFER1 (0x1<<2) -#define OCMD_FIELD_SELECT (0x1<<2) -#define OCMD_FIELD0 (0x0<<1) -#define OCMD_FIELD1 (0x1<<1) -#define OCMD_ENABLE (0x1<<0) - -/* OCONFIG register */ -#define OCONF_PIPE_MASK (0x1<<18) -#define OCONF_PIPE_A (0x0<<18) -#define OCONF_PIPE_B (0x1<<18) -#define OCONF_GAMMA2_ENABLE (0x1<<16) -#define OCONF_CSC_MODE_BT601 (0x0<<5) -#define OCONF_CSC_MODE_BT709 (0x1<<5) -#define OCONF_CSC_BYPASS (0x1<<4) -#define OCONF_CC_OUT_8BIT (0x1<<3) -#define OCONF_TEST_MODE (0x1<<2) -#define OCONF_THREE_LINE_BUFFER (0x1<<0) -#define OCONF_TWO_LINE_BUFFER (0x0<<0) - -/* DCLRKM (dst-key) register */ -#define DST_KEY_ENABLE (0x1<<31) -#define CLK_RGB24_MASK 0x0 -#define CLK_RGB16_MASK 0x070307 -#define CLK_RGB15_MASK 0x070707 -#define CLK_RGB8I_MASK 0xffffff - -#define RGB16_TO_COLORKEY(c) \ - (((c & 0xF800) << 8) | ((c & 0x07E0) << 5) | ((c & 0x001F) << 3)) -#define RGB15_TO_COLORKEY(c) \ - (((c & 0x7c00) << 9) | ((c & 0x03E0) << 6) | ((c & 0x001F) << 3)) - -/* overlay flip addr flag */ -#define OFC_UPDATE 0x1 - -/* polyphase filter coefficients */ -#define N_HORIZ_Y_TAPS 5 -#define N_VERT_Y_TAPS 3 -#define N_HORIZ_UV_TAPS 3 -#define N_VERT_UV_TAPS 3 -#define N_PHASES 17 -#define MAX_TAPS 5 - -/* memory bufferd overlay registers */ -struct overlay_registers { - u32 OBUF_0Y; - u32 OBUF_1Y; - u32 OBUF_0U; - u32 OBUF_0V; - u32 OBUF_1U; - u32 OBUF_1V; - u32 OSTRIDE; - u32 YRGB_VPH; - u32 UV_VPH; - u32 HORZ_PH; - u32 INIT_PHS; - u32 DWINPOS; - u32 DWINSZ; - u32 SWIDTH; - u32 SWIDTHSW; - u32 SHEIGHT; - u32 YRGBSCALE; - u32 UVSCALE; - u32 OCLRC0; - u32 OCLRC1; - u32 DCLRKV; - u32 DCLRKM; - u32 SCLRKVH; - u32 SCLRKVL; - u32 SCLRKEN; - u32 OCONFIG; - u32 OCMD; - u32 RESERVED1; /* 0x6C */ - u32 OSTART_0Y; - u32 OSTART_1Y; - u32 OSTART_0U; - u32 OSTART_0V; - u32 OSTART_1U; - u32 OSTART_1V; - u32 OTILEOFF_0Y; - u32 OTILEOFF_1Y; - u32 OTILEOFF_0U; - u32 OTILEOFF_0V; - u32 OTILEOFF_1U; - u32 OTILEOFF_1V; - u32 FASTHSCALE; /* 0xA0 */ - u32 UVSCALEV; /* 0xA4 */ - u32 RESERVEDC[(0x200 - 0xA8) / 4]; /* 0xA8 - 0x1FC */ - u16 Y_VCOEFS[N_VERT_Y_TAPS * N_PHASES]; /* 0x200 */ - u16 RESERVEDD[0x100 / 2 - N_VERT_Y_TAPS * N_PHASES]; - u16 Y_HCOEFS[N_HORIZ_Y_TAPS * N_PHASES]; /* 0x300 */ - u16 RESERVEDE[0x200 / 2 - N_HORIZ_Y_TAPS * N_PHASES]; - u16 UV_VCOEFS[N_VERT_UV_TAPS * N_PHASES]; /* 0x500 */ - u16 RESERVEDF[0x100 / 2 - N_VERT_UV_TAPS * N_PHASES]; - u16 UV_HCOEFS[N_HORIZ_UV_TAPS * N_PHASES]; /* 0x600 */ - u16 RESERVEDG[0x100 / 2 - N_HORIZ_UV_TAPS * N_PHASES]; -}; - -struct intel_overlay { - struct drm_device *dev; - struct intel_crtc *crtc; - struct drm_i915_gem_object *vid_bo; - struct drm_i915_gem_object *old_vid_bo; - int active; - int pfit_active; - u32 pfit_vscale_ratio; /* shifted-point number, (1<<12) == 1.0 */ - u32 color_key; - u32 brightness, contrast, saturation; - u32 old_xscale, old_yscale; - /* register access */ - u32 flip_addr; - struct drm_i915_gem_object *reg_bo; - /* flip handling */ - uint32_t last_flip_req; - void (*flip_tail)(struct intel_overlay *); -}; - -static struct overlay_registers __iomem * -intel_overlay_map_regs(struct intel_overlay *overlay) -{ - drm_i915_private_t *dev_priv = overlay->dev->dev_private; - struct overlay_registers __iomem *regs; - - if (OVERLAY_NEEDS_PHYSICAL(overlay->dev)) - regs = (struct overlay_registers __iomem *)overlay->reg_bo->phys_obj->handle->vaddr; - else - regs = io_mapping_map_wc(dev_priv->gtt.mappable, - overlay->reg_bo->gtt_offset); - - return regs; -} - -static void intel_overlay_unmap_regs(struct intel_overlay *overlay, - struct overlay_registers __iomem *regs) -{ - if (!OVERLAY_NEEDS_PHYSICAL(overlay->dev)) - io_mapping_unmap(regs); -} - -static int intel_overlay_do_wait_request(struct intel_overlay *overlay, - void (*tail)(struct intel_overlay *)) -{ - struct drm_device *dev = overlay->dev; - drm_i915_private_t *dev_priv = dev->dev_private; - struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; - int ret; - - BUG_ON(overlay->last_flip_req); - ret = i915_add_request(ring, &overlay->last_flip_req); - if (ret) - return ret; - - overlay->flip_tail = tail; - ret = i915_wait_seqno(ring, overlay->last_flip_req); - if (ret) - return ret; - i915_gem_retire_requests(dev); - - overlay->last_flip_req = 0; - return 0; -} - -/* overlay needs to be disable in OCMD reg */ -static int intel_overlay_on(struct intel_overlay *overlay) -{ - struct drm_device *dev = overlay->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; - int ret; - - BUG_ON(overlay->active); - overlay->active = 1; - - WARN_ON(IS_I830(dev) && !(dev_priv->quirks & QUIRK_PIPEA_FORCE)); - - ret = intel_ring_begin(ring, 4); - if (ret) - return ret; - - intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_ON); - intel_ring_emit(ring, overlay->flip_addr | OFC_UPDATE); - intel_ring_emit(ring, MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP); - intel_ring_emit(ring, MI_NOOP); - intel_ring_advance(ring); - - return intel_overlay_do_wait_request(overlay, NULL); -} - -/* overlay needs to be enabled in OCMD reg */ -static int intel_overlay_continue(struct intel_overlay *overlay, - bool load_polyphase_filter) -{ - struct drm_device *dev = overlay->dev; - drm_i915_private_t *dev_priv = dev->dev_private; - struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; - u32 flip_addr = overlay->flip_addr; - u32 tmp; - int ret; - - BUG_ON(!overlay->active); - - if (load_polyphase_filter) - flip_addr |= OFC_UPDATE; - - /* check for underruns */ - tmp = I915_READ(DOVSTA); - if (tmp & (1 << 17)) - DRM_DEBUG("overlay underrun, DOVSTA: %x\n", tmp); - - ret = intel_ring_begin(ring, 2); - if (ret) - return ret; - - intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_CONTINUE); - intel_ring_emit(ring, flip_addr); - intel_ring_advance(ring); - - return i915_add_request(ring, &overlay->last_flip_req); -} - -static void intel_overlay_release_old_vid_tail(struct intel_overlay *overlay) -{ - struct drm_i915_gem_object *obj = overlay->old_vid_bo; - - i915_gem_object_unpin(obj); - drm_gem_object_unreference(&obj->base); - - overlay->old_vid_bo = NULL; -} - -static void intel_overlay_off_tail(struct intel_overlay *overlay) -{ - struct drm_i915_gem_object *obj = overlay->vid_bo; - - /* never have the overlay hw on without showing a frame */ - BUG_ON(!overlay->vid_bo); - - i915_gem_object_unpin(obj); - drm_gem_object_unreference(&obj->base); - overlay->vid_bo = NULL; - - overlay->crtc->overlay = NULL; - overlay->crtc = NULL; - overlay->active = 0; -} - -/* overlay needs to be disabled in OCMD reg */ -static int intel_overlay_off(struct intel_overlay *overlay) -{ - struct drm_device *dev = overlay->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; - u32 flip_addr = overlay->flip_addr; - int ret; - - BUG_ON(!overlay->active); - - /* According to intel docs the overlay hw may hang (when switching - * off) without loading the filter coeffs. It is however unclear whether - * this applies to the disabling of the overlay or to the switching off - * of the hw. Do it in both cases */ - flip_addr |= OFC_UPDATE; - - ret = intel_ring_begin(ring, 6); - if (ret) - return ret; - - /* wait for overlay to go idle */ - intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_CONTINUE); - intel_ring_emit(ring, flip_addr); - intel_ring_emit(ring, MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP); - /* turn overlay off */ - if (IS_I830(dev)) { - /* Workaround: Don't disable the overlay fully, since otherwise - * it dies on the next OVERLAY_ON cmd. */ - intel_ring_emit(ring, MI_NOOP); - intel_ring_emit(ring, MI_NOOP); - intel_ring_emit(ring, MI_NOOP); - } else { - intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_OFF); - intel_ring_emit(ring, flip_addr); - intel_ring_emit(ring, MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP); - } - intel_ring_advance(ring); - - return intel_overlay_do_wait_request(overlay, intel_overlay_off_tail); -} - -/* recover from an interruption due to a signal - * We have to be careful not to repeat work forever an make forward progess. */ -static int intel_overlay_recover_from_interrupt(struct intel_overlay *overlay) -{ - struct drm_device *dev = overlay->dev; - drm_i915_private_t *dev_priv = dev->dev_private; - struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; - int ret; - - if (overlay->last_flip_req == 0) - return 0; - - ret = i915_wait_seqno(ring, overlay->last_flip_req); - if (ret) - return ret; - i915_gem_retire_requests(dev); - - if (overlay->flip_tail) - overlay->flip_tail(overlay); - - overlay->last_flip_req = 0; - return 0; -} - -/* Wait for pending overlay flip and release old frame. - * Needs to be called before the overlay register are changed - * via intel_overlay_(un)map_regs - */ -static int intel_overlay_release_old_vid(struct intel_overlay *overlay) -{ - struct drm_device *dev = overlay->dev; - drm_i915_private_t *dev_priv = dev->dev_private; - struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; - int ret; - - /* Only wait if there is actually an old frame to release to - * guarantee forward progress. - */ - if (!overlay->old_vid_bo) - return 0; - - if (I915_READ(ISR) & I915_OVERLAY_PLANE_FLIP_PENDING_INTERRUPT) { - /* synchronous slowpath */ - ret = intel_ring_begin(ring, 2); - if (ret) - return ret; - - intel_ring_emit(ring, MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP); - intel_ring_emit(ring, MI_NOOP); - intel_ring_advance(ring); - - ret = intel_overlay_do_wait_request(overlay, - intel_overlay_release_old_vid_tail); - if (ret) - return ret; - } - - intel_overlay_release_old_vid_tail(overlay); - return 0; -} - -struct put_image_params { - int format; - short dst_x; - short dst_y; - short dst_w; - short dst_h; - short src_w; - short src_scan_h; - short src_scan_w; - short src_h; - short stride_Y; - short stride_UV; - int offset_Y; - int offset_U; - int offset_V; -}; - -static int packed_depth_bytes(u32 format) -{ - switch (format & I915_OVERLAY_DEPTH_MASK) { - case I915_OVERLAY_YUV422: - return 4; - case I915_OVERLAY_YUV411: - /* return 6; not implemented */ - default: - return -EINVAL; - } -} - -static int packed_width_bytes(u32 format, short width) -{ - switch (format & I915_OVERLAY_DEPTH_MASK) { - case I915_OVERLAY_YUV422: - return width << 1; - default: - return -EINVAL; - } -} - -static int uv_hsubsampling(u32 format) -{ - switch (format & I915_OVERLAY_DEPTH_MASK) { - case I915_OVERLAY_YUV422: - case I915_OVERLAY_YUV420: - return 2; - case I915_OVERLAY_YUV411: - case I915_OVERLAY_YUV410: - return 4; - default: - return -EINVAL; - } -} - -static int uv_vsubsampling(u32 format) -{ - switch (format & I915_OVERLAY_DEPTH_MASK) { - case I915_OVERLAY_YUV420: - case I915_OVERLAY_YUV410: - return 2; - case I915_OVERLAY_YUV422: - case I915_OVERLAY_YUV411: - return 1; - default: - return -EINVAL; - } -} - -static u32 calc_swidthsw(struct drm_device *dev, u32 offset, u32 width) -{ - u32 mask, shift, ret; - if (IS_GEN2(dev)) { - mask = 0x1f; - shift = 5; - } else { - mask = 0x3f; - shift = 6; - } - ret = ((offset + width + mask) >> shift) - (offset >> shift); - if (!IS_GEN2(dev)) - ret <<= 1; - ret -= 1; - return ret << 2; -} - -static const u16 y_static_hcoeffs[N_HORIZ_Y_TAPS * N_PHASES] = { - 0x3000, 0xb4a0, 0x1930, 0x1920, 0xb4a0, - 0x3000, 0xb500, 0x19d0, 0x1880, 0xb440, - 0x3000, 0xb540, 0x1a88, 0x2f80, 0xb3e0, - 0x3000, 0xb580, 0x1b30, 0x2e20, 0xb380, - 0x3000, 0xb5c0, 0x1bd8, 0x2cc0, 0xb320, - 0x3020, 0xb5e0, 0x1c60, 0x2b80, 0xb2c0, - 0x3020, 0xb5e0, 0x1cf8, 0x2a20, 0xb260, - 0x3020, 0xb5e0, 0x1d80, 0x28e0, 0xb200, - 0x3020, 0xb5c0, 0x1e08, 0x3f40, 0xb1c0, - 0x3020, 0xb580, 0x1e78, 0x3ce0, 0xb160, - 0x3040, 0xb520, 0x1ed8, 0x3aa0, 0xb120, - 0x3040, 0xb4a0, 0x1f30, 0x3880, 0xb0e0, - 0x3040, 0xb400, 0x1f78, 0x3680, 0xb0a0, - 0x3020, 0xb340, 0x1fb8, 0x34a0, 0xb060, - 0x3020, 0xb240, 0x1fe0, 0x32e0, 0xb040, - 0x3020, 0xb140, 0x1ff8, 0x3160, 0xb020, - 0xb000, 0x3000, 0x0800, 0x3000, 0xb000 -}; - -static const u16 uv_static_hcoeffs[N_HORIZ_UV_TAPS * N_PHASES] = { - 0x3000, 0x1800, 0x1800, 0xb000, 0x18d0, 0x2e60, - 0xb000, 0x1990, 0x2ce0, 0xb020, 0x1a68, 0x2b40, - 0xb040, 0x1b20, 0x29e0, 0xb060, 0x1bd8, 0x2880, - 0xb080, 0x1c88, 0x3e60, 0xb0a0, 0x1d28, 0x3c00, - 0xb0c0, 0x1db8, 0x39e0, 0xb0e0, 0x1e40, 0x37e0, - 0xb100, 0x1eb8, 0x3620, 0xb100, 0x1f18, 0x34a0, - 0xb100, 0x1f68, 0x3360, 0xb0e0, 0x1fa8, 0x3240, - 0xb0c0, 0x1fe0, 0x3140, 0xb060, 0x1ff0, 0x30a0, - 0x3000, 0x0800, 0x3000 -}; - -static void update_polyphase_filter(struct overlay_registers __iomem *regs) -{ - memcpy_toio(regs->Y_HCOEFS, y_static_hcoeffs, sizeof(y_static_hcoeffs)); - memcpy_toio(regs->UV_HCOEFS, uv_static_hcoeffs, - sizeof(uv_static_hcoeffs)); -} - -static bool update_scaling_factors(struct intel_overlay *overlay, - struct overlay_registers __iomem *regs, - struct put_image_params *params) -{ - /* fixed point with a 12 bit shift */ - u32 xscale, yscale, xscale_UV, yscale_UV; -#define FP_SHIFT 12 -#define FRACT_MASK 0xfff - bool scale_changed = false; - int uv_hscale = uv_hsubsampling(params->format); - int uv_vscale = uv_vsubsampling(params->format); - - if (params->dst_w > 1) - xscale = ((params->src_scan_w - 1) << FP_SHIFT) - /(params->dst_w); - else - xscale = 1 << FP_SHIFT; - - if (params->dst_h > 1) - yscale = ((params->src_scan_h - 1) << FP_SHIFT) - /(params->dst_h); - else - yscale = 1 << FP_SHIFT; - - /*if (params->format & I915_OVERLAY_YUV_PLANAR) {*/ - xscale_UV = xscale/uv_hscale; - yscale_UV = yscale/uv_vscale; - /* make the Y scale to UV scale ratio an exact multiply */ - xscale = xscale_UV * uv_hscale; - yscale = yscale_UV * uv_vscale; - /*} else { - xscale_UV = 0; - yscale_UV = 0; - }*/ - - if (xscale != overlay->old_xscale || yscale != overlay->old_yscale) - scale_changed = true; - overlay->old_xscale = xscale; - overlay->old_yscale = yscale; - - iowrite32(((yscale & FRACT_MASK) << 20) | - ((xscale >> FP_SHIFT) << 16) | - ((xscale & FRACT_MASK) << 3), - ®s->YRGBSCALE); - - iowrite32(((yscale_UV & FRACT_MASK) << 20) | - ((xscale_UV >> FP_SHIFT) << 16) | - ((xscale_UV & FRACT_MASK) << 3), - ®s->UVSCALE); - - iowrite32((((yscale >> FP_SHIFT) << 16) | - ((yscale_UV >> FP_SHIFT) << 0)), - ®s->UVSCALEV); - - if (scale_changed) - update_polyphase_filter(regs); - - return scale_changed; -} - -static void update_colorkey(struct intel_overlay *overlay, - struct overlay_registers __iomem *regs) -{ - u32 key = overlay->color_key; - - switch (overlay->crtc->base.fb->bits_per_pixel) { - case 8: - iowrite32(0, ®s->DCLRKV); - iowrite32(CLK_RGB8I_MASK | DST_KEY_ENABLE, ®s->DCLRKM); - break; - - case 16: - if (overlay->crtc->base.fb->depth == 15) { - iowrite32(RGB15_TO_COLORKEY(key), ®s->DCLRKV); - iowrite32(CLK_RGB15_MASK | DST_KEY_ENABLE, - ®s->DCLRKM); - } else { - iowrite32(RGB16_TO_COLORKEY(key), ®s->DCLRKV); - iowrite32(CLK_RGB16_MASK | DST_KEY_ENABLE, - ®s->DCLRKM); - } - break; - - case 24: - case 32: - iowrite32(key, ®s->DCLRKV); - iowrite32(CLK_RGB24_MASK | DST_KEY_ENABLE, ®s->DCLRKM); - break; - } -} - -static u32 overlay_cmd_reg(struct put_image_params *params) -{ - u32 cmd = OCMD_ENABLE | OCMD_BUF_TYPE_FRAME | OCMD_BUFFER0; - - if (params->format & I915_OVERLAY_YUV_PLANAR) { - switch (params->format & I915_OVERLAY_DEPTH_MASK) { - case I915_OVERLAY_YUV422: - cmd |= OCMD_YUV_422_PLANAR; - break; - case I915_OVERLAY_YUV420: - cmd |= OCMD_YUV_420_PLANAR; - break; - case I915_OVERLAY_YUV411: - case I915_OVERLAY_YUV410: - cmd |= OCMD_YUV_410_PLANAR; - break; - } - } else { /* YUV packed */ - switch (params->format & I915_OVERLAY_DEPTH_MASK) { - case I915_OVERLAY_YUV422: - cmd |= OCMD_YUV_422_PACKED; - break; - case I915_OVERLAY_YUV411: - cmd |= OCMD_YUV_411_PACKED; - break; - } - - switch (params->format & I915_OVERLAY_SWAP_MASK) { - case I915_OVERLAY_NO_SWAP: - break; - case I915_OVERLAY_UV_SWAP: - cmd |= OCMD_UV_SWAP; - break; - case I915_OVERLAY_Y_SWAP: - cmd |= OCMD_Y_SWAP; - break; - case I915_OVERLAY_Y_AND_UV_SWAP: - cmd |= OCMD_Y_AND_UV_SWAP; - break; - } - } - - return cmd; -} - -static int intel_overlay_do_put_image(struct intel_overlay *overlay, - struct drm_i915_gem_object *new_bo, - struct put_image_params *params) -{ - int ret, tmp_width; - struct overlay_registers __iomem *regs; - bool scale_changed = false; - struct drm_device *dev = overlay->dev; - u32 swidth, swidthsw, sheight, ostride; - - BUG_ON(!mutex_is_locked(&dev->struct_mutex)); - BUG_ON(!mutex_is_locked(&dev->mode_config.mutex)); - BUG_ON(!overlay); - - ret = intel_overlay_release_old_vid(overlay); - if (ret != 0) - return ret; - - ret = i915_gem_object_pin_to_display_plane(new_bo, 0, NULL); - if (ret != 0) - return ret; - - ret = i915_gem_object_put_fence(new_bo); - if (ret) - goto out_unpin; - - if (!overlay->active) { - u32 oconfig; - regs = intel_overlay_map_regs(overlay); - if (!regs) { - ret = -ENOMEM; - goto out_unpin; - } - oconfig = OCONF_CC_OUT_8BIT; - if (IS_GEN4(overlay->dev)) - oconfig |= OCONF_CSC_MODE_BT709; - oconfig |= overlay->crtc->pipe == 0 ? - OCONF_PIPE_A : OCONF_PIPE_B; - iowrite32(oconfig, ®s->OCONFIG); - intel_overlay_unmap_regs(overlay, regs); - - ret = intel_overlay_on(overlay); - if (ret != 0) - goto out_unpin; - } - - regs = intel_overlay_map_regs(overlay); - if (!regs) { - ret = -ENOMEM; - goto out_unpin; - } - - iowrite32((params->dst_y << 16) | params->dst_x, ®s->DWINPOS); - iowrite32((params->dst_h << 16) | params->dst_w, ®s->DWINSZ); - - if (params->format & I915_OVERLAY_YUV_PACKED) - tmp_width = packed_width_bytes(params->format, params->src_w); - else - tmp_width = params->src_w; - - swidth = params->src_w; - swidthsw = calc_swidthsw(overlay->dev, params->offset_Y, tmp_width); - sheight = params->src_h; - iowrite32(new_bo->gtt_offset + params->offset_Y, ®s->OBUF_0Y); - ostride = params->stride_Y; - - if (params->format & I915_OVERLAY_YUV_PLANAR) { - int uv_hscale = uv_hsubsampling(params->format); - int uv_vscale = uv_vsubsampling(params->format); - u32 tmp_U, tmp_V; - swidth |= (params->src_w/uv_hscale) << 16; - tmp_U = calc_swidthsw(overlay->dev, params->offset_U, - params->src_w/uv_hscale); - tmp_V = calc_swidthsw(overlay->dev, params->offset_V, - params->src_w/uv_hscale); - swidthsw |= max_t(u32, tmp_U, tmp_V) << 16; - sheight |= (params->src_h/uv_vscale) << 16; - iowrite32(new_bo->gtt_offset + params->offset_U, ®s->OBUF_0U); - iowrite32(new_bo->gtt_offset + params->offset_V, ®s->OBUF_0V); - ostride |= params->stride_UV << 16; - } - - iowrite32(swidth, ®s->SWIDTH); - iowrite32(swidthsw, ®s->SWIDTHSW); - iowrite32(sheight, ®s->SHEIGHT); - iowrite32(ostride, ®s->OSTRIDE); - - scale_changed = update_scaling_factors(overlay, regs, params); - - update_colorkey(overlay, regs); - - iowrite32(overlay_cmd_reg(params), ®s->OCMD); - - intel_overlay_unmap_regs(overlay, regs); - - ret = intel_overlay_continue(overlay, scale_changed); - if (ret) - goto out_unpin; - - overlay->old_vid_bo = overlay->vid_bo; - overlay->vid_bo = new_bo; - - return 0; - -out_unpin: - i915_gem_object_unpin(new_bo); - return ret; -} - -int intel_overlay_switch_off(struct intel_overlay *overlay) -{ - struct overlay_registers __iomem *regs; - struct drm_device *dev = overlay->dev; - int ret; - - BUG_ON(!mutex_is_locked(&dev->struct_mutex)); - BUG_ON(!mutex_is_locked(&dev->mode_config.mutex)); - - ret = intel_overlay_recover_from_interrupt(overlay); - if (ret != 0) - return ret; - - if (!overlay->active) - return 0; - - ret = intel_overlay_release_old_vid(overlay); - if (ret != 0) - return ret; - - regs = intel_overlay_map_regs(overlay); - iowrite32(0, ®s->OCMD); - intel_overlay_unmap_regs(overlay, regs); - - ret = intel_overlay_off(overlay); - if (ret != 0) - return ret; - - intel_overlay_off_tail(overlay); - return 0; -} - -static int check_overlay_possible_on_crtc(struct intel_overlay *overlay, - struct intel_crtc *crtc) -{ - drm_i915_private_t *dev_priv = overlay->dev->dev_private; - - if (!crtc->active) - return -EINVAL; - - /* can't use the overlay with double wide pipe */ - if (INTEL_INFO(overlay->dev)->gen < 4 && - (I915_READ(PIPECONF(crtc->pipe)) & (PIPECONF_DOUBLE_WIDE | PIPECONF_ENABLE)) != PIPECONF_ENABLE) - return -EINVAL; - - return 0; -} - -static void update_pfit_vscale_ratio(struct intel_overlay *overlay) -{ - struct drm_device *dev = overlay->dev; - drm_i915_private_t *dev_priv = dev->dev_private; - u32 pfit_control = I915_READ(PFIT_CONTROL); - u32 ratio; - - /* XXX: This is not the same logic as in the xorg driver, but more in - * line with the intel documentation for the i965 - */ - if (INTEL_INFO(dev)->gen >= 4) { - /* on i965 use the PGM reg to read out the autoscaler values */ - ratio = I915_READ(PFIT_PGM_RATIOS) >> PFIT_VERT_SCALE_SHIFT_965; - } else { - if (pfit_control & VERT_AUTO_SCALE) - ratio = I915_READ(PFIT_AUTO_RATIOS); - else - ratio = I915_READ(PFIT_PGM_RATIOS); - ratio >>= PFIT_VERT_SCALE_SHIFT; - } - - overlay->pfit_vscale_ratio = ratio; -} - -static int check_overlay_dst(struct intel_overlay *overlay, - struct drm_intel_overlay_put_image *rec) -{ - struct drm_display_mode *mode = &overlay->crtc->base.mode; - - if (rec->dst_x < mode->hdisplay && - rec->dst_x + rec->dst_width <= mode->hdisplay && - rec->dst_y < mode->vdisplay && - rec->dst_y + rec->dst_height <= mode->vdisplay) - return 0; - else - return -EINVAL; -} - -static int check_overlay_scaling(struct put_image_params *rec) -{ - u32 tmp; - - /* downscaling limit is 8.0 */ - tmp = ((rec->src_scan_h << 16) / rec->dst_h) >> 16; - if (tmp > 7) - return -EINVAL; - tmp = ((rec->src_scan_w << 16) / rec->dst_w) >> 16; - if (tmp > 7) - return -EINVAL; - - return 0; -} - -static int check_overlay_src(struct drm_device *dev, - struct drm_intel_overlay_put_image *rec, - struct drm_i915_gem_object *new_bo) -{ - int uv_hscale = uv_hsubsampling(rec->flags); - int uv_vscale = uv_vsubsampling(rec->flags); - u32 stride_mask; - int depth; - u32 tmp; - - /* check src dimensions */ - if (IS_845G(dev) || IS_I830(dev)) { - if (rec->src_height > IMAGE_MAX_HEIGHT_LEGACY || - rec->src_width > IMAGE_MAX_WIDTH_LEGACY) - return -EINVAL; - } else { - if (rec->src_height > IMAGE_MAX_HEIGHT || - rec->src_width > IMAGE_MAX_WIDTH) - return -EINVAL; - } - - /* better safe than sorry, use 4 as the maximal subsampling ratio */ - if (rec->src_height < N_VERT_Y_TAPS*4 || - rec->src_width < N_HORIZ_Y_TAPS*4) - return -EINVAL; - - /* check alignment constraints */ - switch (rec->flags & I915_OVERLAY_TYPE_MASK) { - case I915_OVERLAY_RGB: - /* not implemented */ - return -EINVAL; - - case I915_OVERLAY_YUV_PACKED: - if (uv_vscale != 1) - return -EINVAL; - - depth = packed_depth_bytes(rec->flags); - if (depth < 0) - return depth; - - /* ignore UV planes */ - rec->stride_UV = 0; - rec->offset_U = 0; - rec->offset_V = 0; - /* check pixel alignment */ - if (rec->offset_Y % depth) - return -EINVAL; - break; - - case I915_OVERLAY_YUV_PLANAR: - if (uv_vscale < 0 || uv_hscale < 0) - return -EINVAL; - /* no offset restrictions for planar formats */ - break; - - default: - return -EINVAL; - } - - if (rec->src_width % uv_hscale) - return -EINVAL; - - /* stride checking */ - if (IS_I830(dev) || IS_845G(dev)) - stride_mask = 255; - else - stride_mask = 63; - - if (rec->stride_Y & stride_mask || rec->stride_UV & stride_mask) - return -EINVAL; - if (IS_GEN4(dev) && rec->stride_Y < 512) - return -EINVAL; - - tmp = (rec->flags & I915_OVERLAY_TYPE_MASK) == I915_OVERLAY_YUV_PLANAR ? - 4096 : 8192; - if (rec->stride_Y > tmp || rec->stride_UV > 2*1024) - return -EINVAL; - - /* check buffer dimensions */ - switch (rec->flags & I915_OVERLAY_TYPE_MASK) { - case I915_OVERLAY_RGB: - case I915_OVERLAY_YUV_PACKED: - /* always 4 Y values per depth pixels */ - if (packed_width_bytes(rec->flags, rec->src_width) > rec->stride_Y) - return -EINVAL; - - tmp = rec->stride_Y*rec->src_height; - if (rec->offset_Y + tmp > new_bo->base.size) - return -EINVAL; - break; - - case I915_OVERLAY_YUV_PLANAR: - if (rec->src_width > rec->stride_Y) - return -EINVAL; - if (rec->src_width/uv_hscale > rec->stride_UV) - return -EINVAL; - - tmp = rec->stride_Y * rec->src_height; - if (rec->offset_Y + tmp > new_bo->base.size) - return -EINVAL; - - tmp = rec->stride_UV * (rec->src_height / uv_vscale); - if (rec->offset_U + tmp > new_bo->base.size || - rec->offset_V + tmp > new_bo->base.size) - return -EINVAL; - break; - } - - return 0; -} - -/** - * Return the pipe currently connected to the panel fitter, - * or -1 if the panel fitter is not present or not in use - */ -static int intel_panel_fitter_pipe(struct drm_device *dev) -{ - struct drm_i915_private *dev_priv = dev->dev_private; - u32 pfit_control; - - /* i830 doesn't have a panel fitter */ - if (IS_I830(dev)) - return -1; - - pfit_control = I915_READ(PFIT_CONTROL); - - /* See if the panel fitter is in use */ - if ((pfit_control & PFIT_ENABLE) == 0) - return -1; - - /* 965 can place panel fitter on either pipe */ - if (IS_GEN4(dev)) - return (pfit_control >> 29) & 0x3; - - /* older chips can only use pipe 1 */ - return 1; -} - -int intel_overlay_put_image(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_intel_overlay_put_image *put_image_rec = data; - drm_i915_private_t *dev_priv = dev->dev_private; - struct intel_overlay *overlay; - struct drm_mode_object *drmmode_obj; - struct intel_crtc *crtc; - struct drm_i915_gem_object *new_bo; - struct put_image_params *params; - int ret; - - /* No need to check for DRIVER_MODESET - we don't set it up then. */ - overlay = dev_priv->overlay; - if (!overlay) { - DRM_DEBUG("userspace bug: no overlay\n"); - return -ENODEV; - } - - if (!(put_image_rec->flags & I915_OVERLAY_ENABLE)) { - drm_modeset_lock_all(dev); - mutex_lock(&dev->struct_mutex); - - ret = intel_overlay_switch_off(overlay); - - mutex_unlock(&dev->struct_mutex); - drm_modeset_unlock_all(dev); - - return ret; - } - - params = kmalloc(sizeof(struct put_image_params), GFP_KERNEL); - if (!params) - return -ENOMEM; - - drmmode_obj = drm_mode_object_find(dev, put_image_rec->crtc_id, - DRM_MODE_OBJECT_CRTC); - if (!drmmode_obj) { - ret = -ENOENT; - goto out_free; - } - crtc = to_intel_crtc(obj_to_crtc(drmmode_obj)); - - new_bo = to_intel_bo(drm_gem_object_lookup(dev, file_priv, - put_image_rec->bo_handle)); - if (&new_bo->base == NULL) { - ret = -ENOENT; - goto out_free; - } - - drm_modeset_lock_all(dev); - mutex_lock(&dev->struct_mutex); - - if (new_bo->tiling_mode) { - DRM_ERROR("buffer used for overlay image can not be tiled\n"); - ret = -EINVAL; - goto out_unlock; - } - - ret = intel_overlay_recover_from_interrupt(overlay); - if (ret != 0) - goto out_unlock; - - if (overlay->crtc != crtc) { - struct drm_display_mode *mode = &crtc->base.mode; - ret = intel_overlay_switch_off(overlay); - if (ret != 0) - goto out_unlock; - - ret = check_overlay_possible_on_crtc(overlay, crtc); - if (ret != 0) - goto out_unlock; - - overlay->crtc = crtc; - crtc->overlay = overlay; - - /* line too wide, i.e. one-line-mode */ - if (mode->hdisplay > 1024 && - intel_panel_fitter_pipe(dev) == crtc->pipe) { - overlay->pfit_active = 1; - update_pfit_vscale_ratio(overlay); - } else - overlay->pfit_active = 0; - } - - ret = check_overlay_dst(overlay, put_image_rec); - if (ret != 0) - goto out_unlock; - - if (overlay->pfit_active) { - params->dst_y = ((((u32)put_image_rec->dst_y) << 12) / - overlay->pfit_vscale_ratio); - /* shifting right rounds downwards, so add 1 */ - params->dst_h = ((((u32)put_image_rec->dst_height) << 12) / - overlay->pfit_vscale_ratio) + 1; - } else { - params->dst_y = put_image_rec->dst_y; - params->dst_h = put_image_rec->dst_height; - } - params->dst_x = put_image_rec->dst_x; - params->dst_w = put_image_rec->dst_width; - - params->src_w = put_image_rec->src_width; - params->src_h = put_image_rec->src_height; - params->src_scan_w = put_image_rec->src_scan_width; - params->src_scan_h = put_image_rec->src_scan_height; - if (params->src_scan_h > params->src_h || - params->src_scan_w > params->src_w) { - ret = -EINVAL; - goto out_unlock; - } - - ret = check_overlay_src(dev, put_image_rec, new_bo); - if (ret != 0) - goto out_unlock; - params->format = put_image_rec->flags & ~I915_OVERLAY_FLAGS_MASK; - params->stride_Y = put_image_rec->stride_Y; - params->stride_UV = put_image_rec->stride_UV; - params->offset_Y = put_image_rec->offset_Y; - params->offset_U = put_image_rec->offset_U; - params->offset_V = put_image_rec->offset_V; - - /* Check scaling after src size to prevent a divide-by-zero. */ - ret = check_overlay_scaling(params); - if (ret != 0) - goto out_unlock; - - ret = intel_overlay_do_put_image(overlay, new_bo, params); - if (ret != 0) - goto out_unlock; - - mutex_unlock(&dev->struct_mutex); - drm_modeset_unlock_all(dev); - - kfree(params); - - return 0; - -out_unlock: - mutex_unlock(&dev->struct_mutex); - drm_modeset_unlock_all(dev); - drm_gem_object_unreference_unlocked(&new_bo->base); -out_free: - kfree(params); - - return ret; -} - -static void update_reg_attrs(struct intel_overlay *overlay, - struct overlay_registers __iomem *regs) -{ - iowrite32((overlay->contrast << 18) | (overlay->brightness & 0xff), - ®s->OCLRC0); - iowrite32(overlay->saturation, ®s->OCLRC1); -} - -static bool check_gamma_bounds(u32 gamma1, u32 gamma2) -{ - int i; - - if (gamma1 & 0xff000000 || gamma2 & 0xff000000) - return false; - - for (i = 0; i < 3; i++) { - if (((gamma1 >> i*8) & 0xff) >= ((gamma2 >> i*8) & 0xff)) - return false; - } - - return true; -} - -static bool check_gamma5_errata(u32 gamma5) -{ - int i; - - for (i = 0; i < 3; i++) { - if (((gamma5 >> i*8) & 0xff) == 0x80) - return false; - } - - return true; -} - -static int check_gamma(struct drm_intel_overlay_attrs *attrs) -{ - if (!check_gamma_bounds(0, attrs->gamma0) || - !check_gamma_bounds(attrs->gamma0, attrs->gamma1) || - !check_gamma_bounds(attrs->gamma1, attrs->gamma2) || - !check_gamma_bounds(attrs->gamma2, attrs->gamma3) || - !check_gamma_bounds(attrs->gamma3, attrs->gamma4) || - !check_gamma_bounds(attrs->gamma4, attrs->gamma5) || - !check_gamma_bounds(attrs->gamma5, 0x00ffffff)) - return -EINVAL; - - if (!check_gamma5_errata(attrs->gamma5)) - return -EINVAL; - - return 0; -} - -int intel_overlay_attrs(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_intel_overlay_attrs *attrs = data; - drm_i915_private_t *dev_priv = dev->dev_private; - struct intel_overlay *overlay; - struct overlay_registers __iomem *regs; - int ret; - - /* No need to check for DRIVER_MODESET - we don't set it up then. */ - overlay = dev_priv->overlay; - if (!overlay) { - DRM_DEBUG("userspace bug: no overlay\n"); - return -ENODEV; - } - - drm_modeset_lock_all(dev); - mutex_lock(&dev->struct_mutex); - - ret = -EINVAL; - if (!(attrs->flags & I915_OVERLAY_UPDATE_ATTRS)) { - attrs->color_key = overlay->color_key; - attrs->brightness = overlay->brightness; - attrs->contrast = overlay->contrast; - attrs->saturation = overlay->saturation; - - if (!IS_GEN2(dev)) { - attrs->gamma0 = I915_READ(OGAMC0); - attrs->gamma1 = I915_READ(OGAMC1); - attrs->gamma2 = I915_READ(OGAMC2); - attrs->gamma3 = I915_READ(OGAMC3); - attrs->gamma4 = I915_READ(OGAMC4); - attrs->gamma5 = I915_READ(OGAMC5); - } - } else { - if (attrs->brightness < -128 || attrs->brightness > 127) - goto out_unlock; - if (attrs->contrast > 255) - goto out_unlock; - if (attrs->saturation > 1023) - goto out_unlock; - - overlay->color_key = attrs->color_key; - overlay->brightness = attrs->brightness; - overlay->contrast = attrs->contrast; - overlay->saturation = attrs->saturation; - - regs = intel_overlay_map_regs(overlay); - if (!regs) { - ret = -ENOMEM; - goto out_unlock; - } - - update_reg_attrs(overlay, regs); - - intel_overlay_unmap_regs(overlay, regs); - - if (attrs->flags & I915_OVERLAY_UPDATE_GAMMA) { - if (IS_GEN2(dev)) - goto out_unlock; - - if (overlay->active) { - ret = -EBUSY; - goto out_unlock; - } - - ret = check_gamma(attrs); - if (ret) - goto out_unlock; - - I915_WRITE(OGAMC0, attrs->gamma0); - I915_WRITE(OGAMC1, attrs->gamma1); - I915_WRITE(OGAMC2, attrs->gamma2); - I915_WRITE(OGAMC3, attrs->gamma3); - I915_WRITE(OGAMC4, attrs->gamma4); - I915_WRITE(OGAMC5, attrs->gamma5); - } - } - - ret = 0; -out_unlock: - mutex_unlock(&dev->struct_mutex); - drm_modeset_unlock_all(dev); - - return ret; -} - -void intel_setup_overlay(struct drm_device *dev) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - struct intel_overlay *overlay; - struct drm_i915_gem_object *reg_bo; - struct overlay_registers __iomem *regs; - int ret; - - if (!HAS_OVERLAY(dev)) - return; - - overlay = kzalloc(sizeof(struct intel_overlay), GFP_KERNEL); - if (!overlay) - return; - - mutex_lock(&dev->struct_mutex); - if (WARN_ON(dev_priv->overlay)) - goto out_free; - - overlay->dev = dev; - - reg_bo = i915_gem_object_create_stolen(dev, PAGE_SIZE); - if (reg_bo == NULL) - reg_bo = i915_gem_alloc_object(dev, PAGE_SIZE); - if (reg_bo == NULL) - goto out_free; - overlay->reg_bo = reg_bo; - - if (OVERLAY_NEEDS_PHYSICAL(dev)) { - ret = i915_gem_attach_phys_object(dev, reg_bo, - I915_GEM_PHYS_OVERLAY_REGS, - PAGE_SIZE); - if (ret) { - DRM_ERROR("failed to attach phys overlay regs\n"); - goto out_free_bo; - } - overlay->flip_addr = reg_bo->phys_obj->handle->busaddr; - } else { - ret = i915_gem_object_pin(reg_bo, PAGE_SIZE, true, false); - if (ret) { - DRM_ERROR("failed to pin overlay register bo\n"); - goto out_free_bo; - } - overlay->flip_addr = reg_bo->gtt_offset; - - ret = i915_gem_object_set_to_gtt_domain(reg_bo, true); - if (ret) { - DRM_ERROR("failed to move overlay register bo into the GTT\n"); - goto out_unpin_bo; - } - } - - /* init all values */ - overlay->color_key = 0x0101fe; - overlay->brightness = -19; - overlay->contrast = 75; - overlay->saturation = 146; - - regs = intel_overlay_map_regs(overlay); - if (!regs) - goto out_unpin_bo; - - memset_io(regs, 0, sizeof(struct overlay_registers)); - update_polyphase_filter(regs); - update_reg_attrs(overlay, regs); - - intel_overlay_unmap_regs(overlay, regs); - - dev_priv->overlay = overlay; - mutex_unlock(&dev->struct_mutex); - DRM_INFO("initialized overlay support\n"); - return; - -out_unpin_bo: - if (!OVERLAY_NEEDS_PHYSICAL(dev)) - i915_gem_object_unpin(reg_bo); -out_free_bo: - drm_gem_object_unreference(®_bo->base); -out_free: - mutex_unlock(&dev->struct_mutex); - kfree(overlay); - return; -} - -void intel_cleanup_overlay(struct drm_device *dev) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - - if (!dev_priv->overlay) - return; - - /* The bo's should be free'd by the generic code already. - * Furthermore modesetting teardown happens beforehand so the - * hardware should be off already */ - BUG_ON(dev_priv->overlay->active); - - drm_gem_object_unreference_unlocked(&dev_priv->overlay->reg_bo->base); - kfree(dev_priv->overlay); -} - -#ifdef CONFIG_DEBUG_FS -#include <linux/seq_file.h> - -struct intel_overlay_error_state { - struct overlay_registers regs; - unsigned long base; - u32 dovsta; - u32 isr; -}; - -static struct overlay_registers __iomem * -intel_overlay_map_regs_atomic(struct intel_overlay *overlay) -{ - drm_i915_private_t *dev_priv = overlay->dev->dev_private; - struct overlay_registers __iomem *regs; - - if (OVERLAY_NEEDS_PHYSICAL(overlay->dev)) - /* Cast to make sparse happy, but it's wc memory anyway, so - * equivalent to the wc io mapping on X86. */ - regs = (struct overlay_registers __iomem *) - overlay->reg_bo->phys_obj->handle->vaddr; - else - regs = io_mapping_map_atomic_wc(dev_priv->gtt.mappable, - overlay->reg_bo->gtt_offset); - - return regs; -} - -static void intel_overlay_unmap_regs_atomic(struct intel_overlay *overlay, - struct overlay_registers __iomem *regs) -{ - if (!OVERLAY_NEEDS_PHYSICAL(overlay->dev)) - io_mapping_unmap_atomic(regs); -} - - -struct intel_overlay_error_state * -intel_overlay_capture_error_state(struct drm_device *dev) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - struct intel_overlay *overlay = dev_priv->overlay; - struct intel_overlay_error_state *error; - struct overlay_registers __iomem *regs; - - if (!overlay || !overlay->active) - return NULL; - - error = kmalloc(sizeof(*error), GFP_ATOMIC); - if (error == NULL) - return NULL; - - error->dovsta = I915_READ(DOVSTA); - error->isr = I915_READ(ISR); - if (OVERLAY_NEEDS_PHYSICAL(overlay->dev)) - error->base = (__force long)overlay->reg_bo->phys_obj->handle->vaddr; - else - error->base = overlay->reg_bo->gtt_offset; - - regs = intel_overlay_map_regs_atomic(overlay); - if (!regs) - goto err; - - memcpy_fromio(&error->regs, regs, sizeof(struct overlay_registers)); - intel_overlay_unmap_regs_atomic(overlay, regs); - - return error; - -err: - kfree(error); - return NULL; -} - -void -intel_overlay_print_error_state(struct drm_i915_error_state_buf *m, - struct intel_overlay_error_state *error) -{ - i915_error_printf(m, "Overlay, status: 0x%08x, interrupt: 0x%08x\n", - error->dovsta, error->isr); - i915_error_printf(m, " Register file at 0x%08lx:\n", - error->base); - -#define P(x) i915_error_printf(m, " " #x ": 0x%08x\n", error->regs.x) - P(OBUF_0Y); - P(OBUF_1Y); - P(OBUF_0U); - P(OBUF_0V); - P(OBUF_1U); - P(OBUF_1V); - P(OSTRIDE); - P(YRGB_VPH); - P(UV_VPH); - P(HORZ_PH); - P(INIT_PHS); - P(DWINPOS); - P(DWINSZ); - P(SWIDTH); - P(SWIDTHSW); - P(SHEIGHT); - P(YRGBSCALE); - P(UVSCALE); - P(OCLRC0); - P(OCLRC1); - P(DCLRKV); - P(DCLRKM); - P(SCLRKVH); - P(SCLRKVL); - P(SCLRKEN); - P(OCONFIG); - P(OCMD); - P(OSTART_0Y); - P(OSTART_1Y); - P(OSTART_0U); - P(OSTART_0V); - P(OSTART_1U); - P(OSTART_1V); - P(OTILEOFF_0Y); - P(OTILEOFF_1Y); - P(OTILEOFF_0U); - P(OTILEOFF_0V); - P(OTILEOFF_1U); - P(OTILEOFF_1V); - P(FASTHSCALE); - P(UVSCALEV); -#undef P -} -#endif |