/* * Copyright 2007-8 Advanced Micro Devices, Inc. * Copyright 2008 Red Hat Inc. * * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: Dave Airlie * Alex Deucher */ #include "drmP.h" #include "radeon_drm.h" #include "radeon.h" #include "atom.h" #include #include "drm_crtc_helper.h" #include "drm_edid.h" static int radeon_ddc_dump(struct drm_connector *connector); static void avivo_crtc_load_lut(struct drm_crtc *crtc) { struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); struct drm_device *dev = crtc->dev; struct radeon_device *rdev = dev->dev_private; int i; DRM_DEBUG_KMS("%d\n", radeon_crtc->crtc_id); WREG32(AVIVO_DC_LUTA_CONTROL + radeon_crtc->crtc_offset, 0); WREG32(AVIVO_DC_LUTA_BLACK_OFFSET_BLUE + radeon_crtc->crtc_offset, 0); WREG32(AVIVO_DC_LUTA_BLACK_OFFSET_GREEN + radeon_crtc->crtc_offset, 0); WREG32(AVIVO_DC_LUTA_BLACK_OFFSET_RED + radeon_crtc->crtc_offset, 0); WREG32(AVIVO_DC_LUTA_WHITE_OFFSET_BLUE + radeon_crtc->crtc_offset, 0xffff); WREG32(AVIVO_DC_LUTA_WHITE_OFFSET_GREEN + radeon_crtc->crtc_offset, 0xffff); WREG32(AVIVO_DC_LUTA_WHITE_OFFSET_RED + radeon_crtc->crtc_offset, 0xffff); WREG32(AVIVO_DC_LUT_RW_SELECT, radeon_crtc->crtc_id); WREG32(AVIVO_DC_LUT_RW_MODE, 0); WREG32(AVIVO_DC_LUT_WRITE_EN_MASK, 0x0000003f); WREG8(AVIVO_DC_LUT_RW_INDEX, 0); for (i = 0; i < 256; i++) { WREG32(AVIVO_DC_LUT_30_COLOR, (radeon_crtc->lut_r[i] << 20) | (radeon_crtc->lut_g[i] << 10) | (radeon_crtc->lut_b[i] << 0)); } WREG32(AVIVO_D1GRPH_LUT_SEL + radeon_crtc->crtc_offset, radeon_crtc->crtc_id); } static void evergreen_crtc_load_lut(struct drm_crtc *crtc) { struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); struct drm_device *dev = crtc->dev; struct radeon_device *rdev = dev->dev_private; int i; DRM_DEBUG_KMS("%d\n", radeon_crtc->crtc_id); WREG32(EVERGREEN_DC_LUT_CONTROL + radeon_crtc->crtc_offset, 0); WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_BLUE + radeon_crtc->crtc_offset, 0); WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_GREEN + radeon_crtc->crtc_offset, 0); WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_RED + radeon_crtc->crtc_offset, 0); WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_BLUE + radeon_crtc->crtc_offset, 0xffff); WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_GREEN + radeon_crtc->crtc_offset, 0xffff); WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_RED + radeon_crtc->crtc_offset, 0xffff); WREG32(EVERGREEN_DC_LUT_RW_MODE + radeon_crtc->crtc_offset, 0); WREG32(EVERGREEN_DC_LUT_WRITE_EN_MASK + radeon_crtc->crtc_offset, 0x00000007); WREG32(EVERGREEN_DC_LUT_RW_INDEX + radeon_crtc->crtc_offset, 0); for (i = 0; i < 256; i++) { WREG32(EVERGREEN_DC_LUT_30_COLOR + radeon_crtc->crtc_offset, (radeon_crtc->lut_r[i] << 20) | (radeon_crtc->lut_g[i] << 10) | (radeon_crtc->lut_b[i] << 0)); } } static void legacy_crtc_load_lut(struct drm_crtc *crtc) { struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); struct drm_device *dev = crtc->dev; struct radeon_device *rdev = dev->dev_private; int i; uint32_t dac2_cntl; dac2_cntl = RREG32(RADEON_DAC_CNTL2); if (radeon_crtc->crtc_id == 0) dac2_cntl &= (uint32_t)~RADEON_DAC2_PALETTE_ACC_CTL; else dac2_cntl |= RADEON_DAC2_PALETTE_ACC_CTL; WREG32(RADEON_DAC_CNTL2, dac2_cntl); WREG8(RADEON_PALETTE_INDEX, 0); for (i = 0; i < 256; i++) { WREG32(RADEON_PALETTE_30_DATA, (radeon_crtc->lut_r[i] << 20) | (radeon_crtc->lut_g[i] << 10) | (radeon_crtc->lut_b[i] << 0)); } } void radeon_crtc_load_lut(struct drm_crtc *crtc) { struct drm_device *dev = crtc->dev; struct radeon_device *rdev = dev->dev_private; if (!crtc->enabled) return; if (ASIC_IS_DCE4(rdev)) evergreen_crtc_load_lut(crtc); else if (ASIC_IS_AVIVO(rdev)) avivo_crtc_load_lut(crtc); else legacy_crtc_load_lut(crtc); } /** Sets the color ramps on behalf of fbcon */ void radeon_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, u16 blue, int regno) { struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); radeon_crtc->lut_r[regno] = red >> 6; radeon_crtc->lut_g[regno] = green >> 6; radeon_crtc->lut_b[regno] = blue >> 6; } /** Gets the color ramps on behalf of fbcon */ void radeon_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, u16 *blue, int regno) { struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); *red = radeon_crtc->lut_r[regno] << 6; *green = radeon_crtc->lut_g[regno] << 6; *blue = radeon_crtc->lut_b[regno] << 6; } static void radeon_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, u16 *blue, uint32_t start, uint32_t size) { struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); int end = (start + size > 256) ? 256 : start + size, i; /* userspace palettes are always correct as is */ for (i = start; i < end; i++) { radeon_crtc->lut_r[i] = red[i] >> 6; radeon_crtc->lut_g[i] = green[i] >> 6; radeon_crtc->lut_b[i] = blue[i] >> 6; } radeon_crtc_load_lut(crtc); } static void radeon_crtc_destroy(struct drm_crtc *crtc) { struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); drm_crtc_cleanup(crtc); kfree(radeon_crtc); } /* * Handle unpin events outside the interrupt handler proper. */ static void radeon_unpin_work_func(struct work_struct *__work) { struct radeon_unpin_work *work = container_of(__work, struct radeon_unpin_work, work); int r; /* unpin of the old buffer */ r = radeon_bo_reserve(work->old_rbo, false); if (likely(r == 0)) { r = radeon_bo_unpin(work->old_rbo); if (unlikely(r != 0)) { DRM_ERROR("failed to unpin buffer after flip\n"); } radeon_bo_unreserve(work->old_rbo); } else DRM_ERROR("failed to reserve buffer after flip\n"); kfree(work); } void radeon_crtc_handle_flip(struct radeon_device *rdev, int crtc_id) { struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id]; struct radeon_unpin_work *work; struct drm_pending_vblank_event *e; struct timeval now; unsigned long flags; u32 update_pending; int vpos, hpos; spin_lock_irqsave(&rdev->ddev->event_lock, flags); work = radeon_crtc->unpin_work; if (work == NULL || !radeon_fence_signaled(work->fence)) { spin_unlock_irqrestore(&rdev->ddev->event_lock, flags); return; } /* New pageflip, or just completion of a previous one? */ if (!radeon_crtc->deferred_flip_completion) { /* do the flip (mmio) */ update_pending = radeon_page_flip(rdev, crtc_id, work->new_crtc_base); } else { /* This is just a completion of a flip queued in crtc * at last invocation. Make sure we go directly to * completion routine. */ update_pending = 0; radeon_crtc->deferred_flip_completion = 0; } /* Has the pageflip already completed in crtc, or is it certain * to complete in this vblank? */ if (update_pending && (DRM_SCANOUTPOS_VALID & radeon_get_crtc_scanoutpos(rdev->ddev, crtc_id, &vpos, &hpos)) && (vpos >=0) && (vpos < (99 * rdev->mode_info.crtcs[crtc_id]->base.hwmode.crtc_vdisplay)/100)) { /* crtc didn't flip in this target vblank interval, * but flip is pending in crtc. It will complete it * in next vblank interval, so complete the flip at * next vblank irq. */ radeon_crtc->deferred_flip_completion = 1; spin_unlock_irqrestore(&rdev->ddev->event_lock, flags); return; } /* Pageflip (will be) certainly completed in this vblank. Clean up. */ radeon_crtc->unpin_work = NULL; /* wakeup userspace */ if (work->event) { e = work->event; e->event.sequence = drm_vblank_count_and_time(rdev->ddev, crtc_id, &now); e->event.tv_sec = now.tv_sec; e->event.tv_usec = now.tv_usec; list_add_tail(&e->base.link, &e->base.file_priv->event_list); wake_up_interruptible(&e->base.file_priv->event_wait); } spin_unlock_irqrestore(&rdev->ddev->event_lock, flags); drm_vblank_put(rdev->ddev, radeon_crtc->crtc_id); radeon_fence_unref(&work->fence); radeon_post_page_flip(work->rdev, work->crtc_id); schedule_work(&work->work); } static int radeon_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb, struct drm_pending_vblank_event *event) { struct drm_device *dev = crtc->dev; struct radeon_device *rdev = dev->dev_private; struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); struct radeon_framebuffer *old_radeon_fb; struct radeon_framebuffer *new_radeon_fb; struct drm_gem_object *obj; struct radeon_bo *rbo; struct radeon_fence *fence; struct radeon_unpin_work *work; unsigned long flags; u32 tiling_flags, pitch_pixels; u64 base; int r; work = kzalloc(sizeof *work, GFP_KERNEL); if (work == NULL) return -ENOMEM; r = radeon_fence_create(rdev, &fence); if (unlikely(r != 0)) { kfree(work); DRM_ERROR("flip queue: failed to create fence.\n"); return -ENOMEM; } work->event = event; work->rdev = rdev; work->crtc_id = radeon_crtc->crtc_id; work->fence = radeon_fence_ref(fence); old_radeon_fb = to_radeon_framebuffer(crtc->fb); new_radeon_fb = to_radeon_framebuffer(fb); /* schedule unpin of the old buffer */ obj = old_radeon_fb->obj; rbo = obj->driver_private; work->old_rbo = rbo; INIT_WORK(&work->work, radeon_unpin_work_func); /* We borrow the event spin lock for protecting unpin_work */ spin_lock_irqsave(&dev->event_lock, flags); if (radeon_crtc->unpin_work) { spin_unlock_irqrestore(&dev->event_lock, flags); kfree(work); radeon_fence_unref(&fence); DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); return -EBUSY; } radeon_crtc->unpin_work = work; radeon_crtc->deferred_flip_completion = 0; spin_unlock_irqrestore(&dev->event_lock, flags); /* pin the new buffer */ obj = new_radeon_fb->obj; rbo = obj->driver_private; DRM_DEBUG_DRIVER("flip-ioctl() cur_fbo = %p, cur_bbo = %p\n", work->old_rbo, rbo); r = radeon_bo_reserve(rbo, false); if (unlikely(r != 0)) { DRM_ERROR("failed to reserve new rbo buffer before flip\n"); goto pflip_cleanup; } r = radeon_bo_pin(rbo, RADEON_GEM_DOMAIN_VRAM, &base); if (unlikely(r != 0)) { radeon_bo_unreserve(rbo); r = -EINVAL; DRM_ERROR("failed to pin new rbo buffer before flip\n"); goto pflip_cleanup; } radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL); radeon_bo_unreserve(rbo); if (!ASIC_IS_AVIVO(rdev)) { /* crtc offset is from display base addr not FB location */ base -= radeon_crtc->legacy_display_base_addr; pitch_pixels = fb->pitch / (fb->bits_per_pixel / 8); if (tiling_flags & RADEON_TILING_MACRO) { if (ASIC_IS_R300(rdev)) { base &= ~0x7ff; } else { int byteshift = fb->bits_per_pixel >> 4; int tile_addr = (((crtc->y >> 3) * pitch_pixels + crtc->x) >> (8 - byteshift)) << 11; base += tile_addr + ((crtc->x << byteshift) % 256) + ((crtc->y % 8) << 8); } } else { int offset = crtc->y * pitch_pixels + crtc->x; switch (fb->bits_per_pixel) { case 8: default: offset *= 1; break; case 15: case 16: offset *= 2; break; case 24: offset *= 3; break; case 32: offset *= 4; break; } base += offset; } base &= ~7; } spin_lock_irqsave(&dev->event_lock, flags); work->new_crtc_base = base; spin_unlock_irqrestore(&dev->event_lock, flags); /* update crtc fb */ crtc->fb = fb; r = drm_vblank_get(dev, radeon_crtc->crtc_id); if (r) { DRM_ERROR("failed to get vblank before flip\n"); goto pflip_cleanup1; } /* 32 ought to cover us */ r = radeon_ring_lock(rdev, 32); if (r) { DRM_ERROR("failed to lock the ring before flip\n"); goto pflip_cleanup2; } /* emit the fence */ radeon_fence_emit(rdev, fence); /* set the proper interrupt */ radeon_pre_page_flip(rdev, radeon_crtc->crtc_id); /* fire the ring */ radeon_ring_unlock_commit(rdev); return 0; pflip_cleanup2: drm_vblank_put(dev, radeon_crtc->crtc_id); pflip_cleanup1: r = radeon_bo_reserve(rbo, false); if (unlikely(r != 0)) { DRM_ERROR("failed to reserve new rbo in error path\n"); goto pflip_cleanup; } r = radeon_bo_unpin(rbo); if (unlikely(r != 0)) { radeon_bo_unreserve(rbo); r = -EINVAL; DRM_ERROR("failed to unpin new rbo in error path\n"); goto pflip_cleanup; } radeon_bo_unreserve(rbo); pflip_cleanup: spin_lock_irqsave(&dev->event_lock, flags); radeon_crtc->unpin_work = NULL; spin_unlock_irqrestore(&dev->event_lock, flags); radeon_fence_unref(&fence); kfree(work); return r; } static const struct drm_crtc_funcs radeon_crtc_funcs = { .cursor_set = radeon_crtc_cursor_set, .cursor_move = radeon_crtc_cursor_move, .gamma_set = radeon_crtc_gamma_set, .set_config = drm_crtc_helper_set_config, .destroy = radeon_crtc_destroy, .page_flip = radeon_crtc_page_flip, }; static void radeon_crtc_init(struct drm_device *dev, int index) { struct radeon_device *rdev = dev->dev_private; struct radeon_crtc *radeon_crtc; int i; radeon_crtc = kzalloc(sizeof(struct radeon_crtc) + (RADEONFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL); if (radeon_crtc == NULL) return; drm_crtc_init(dev, &radeon_crtc->base, &radeon_crtc_funcs); drm_mode_crtc_set_gamma_size(&radeon_crtc->base, 256); radeon_crtc->crtc_id = index; rdev->mode_info.crtcs[index] = radeon_crtc; #if 0 radeon_crtc->mode_set.crtc = &radeon_crtc->base; radeon_crtc->mode_set.connectors = (struct drm_connector **)(radeon_crtc + 1); radeon_crtc->mode_set.num_connectors = 0; #endif for (i = 0; i < 256; i++) { radeon_crtc->lut_r[i] = i << 2; radeon_crtc->lut_g[i] = i << 2; radeon_crtc->lut_b[i] = i << 2; } if (rdev->is_atom_bios && (ASIC_IS_AVIVO(rdev) || radeon_r4xx_atom)) radeon_atombios_init_crtc(dev, radeon_crtc); else radeon_legacy_init_crtc(dev, radeon_crtc); } static const char *encoder_names[36] = { "NONE", "INTERNAL_LVDS", "INTERNAL_TMDS1", "INTERNAL_TMDS2", "INTERNAL_DAC1", "INTERNAL_DAC2", "INTERNAL_SDVOA", "INTERNAL_SDVOB", "SI170B", "CH7303", "CH7301", "INTERNAL_DVO1", "EXTERNAL_SDVOA", "EXTERNAL_SDVOB", "TITFP513", "INTERNAL_LVTM1", "VT1623", "HDMI_SI1930", "HDMI_INTERNAL", "INTERNAL_KLDSCP_TMDS1", "INTERNAL_KLDSCP_DVO1", "INTERNAL_KLDSCP_DAC1", "INTERNAL_KLDSCP_DAC2", "SI178", "MVPU_FPGA", "INTERNAL_DDI", "VT1625", "HDMI_SI1932", "DP_AN9801", "DP_DP501", "INTERNAL_UNIPHY", "INTERNAL_KLDSCP_LVTMA", "INTERNAL_UNIPHY1", "INTERNAL_UNIPHY2", "NUTMEG", "TRAVIS", }; static const char *connector_names[15] = { "Unknown", "VGA", "DVI-I", "DVI-D", "DVI-A", "Composite", "S-video", "LVDS", "Component", "DIN", "DisplayPort", "HDMI-A", "HDMI-B", "TV", "eDP", }; static const char *hpd_names[6] = { "HPD1", "HPD2", "HPD3", "HPD4", "HPD5", "HPD6", }; static void radeon_print_display_setup(struct drm_device *dev) { struct drm_connector *connector; struct radeon_connector *radeon_connector; struct drm_encoder *encoder; struct radeon_encoder *radeon_encoder; uint32_t devices; int i = 0; DRM_INFO("Radeon Display Connectors\n"); list_for_each_entry(connector, &dev->mode_config.connector_list, head) { radeon_connector = to_radeon_connector(connector); DRM_INFO("Connector %d:\n", i); DRM_INFO(" %s\n", connector_names[connector->connector_type]); if (radeon_connector->hpd.hpd != RADEON_HPD_NONE) DRM_INFO(" %s\n", hpd_names[radeon_connector->hpd.hpd]); if (radeon_connector->ddc_bus) { DRM_INFO(" DDC: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n", radeon_connector->ddc_bus->rec.mask_clk_reg, radeon_connector->ddc_bus->rec.mask_data_reg, radeon_connector->ddc_bus->rec.a_clk_reg, radeon_connector->ddc_bus->rec.a_data_reg, radeon_connector->ddc_bus->rec.en_clk_reg, radeon_connector->ddc_bus->rec.en_data_reg, radeon_connector->ddc_bus->rec.y_clk_reg, radeon_connector->ddc_bus->rec.y_data_reg); if (radeon_connector->router.ddc_valid) DRM_INFO(" DDC Router 0x%x/0x%x\n", radeon_connector->router.ddc_mux_control_pin, radeon_connector->router.ddc_mux_state); if (radeon_connector->router.cd_valid) DRM_INFO(" Clock/Data Router 0x%x/0x%x\n", radeon_connector->router.cd_mux_control_pin, radeon_connector->router.cd_mux_state); } else { if (connector->connector_type == DRM_MODE_CONNECTOR_VGA || connector->connector_type == DRM_MODE_CONNECTOR_DVII || connector->connector_type == DRM_MODE_CONNECTOR_DVID || connector->connector_type == DRM_MODE_CONNECTOR_DVIA || connector->connector_type == DRM_MODE_CONNECTOR_HDMIA || connector->connector_type == DRM_MODE_CONNECTOR_HDMIB) DRM_INFO(" DDC: no ddc bus - possible BIOS bug - please report to xorg-driver-ati@lists.x.org\n"); } DRM_INFO(" Encoders:\n"); list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { radeon_encoder = to_radeon_encoder(encoder); devices = radeon_encoder->devices & radeon_connector->devices; if (devices) { if (devices & ATOM_DEVICE_CRT1_SUPPORT) DRM_INFO(" CRT1: %s\n", encoder_names[radeon_encoder->encoder_id]); if (devices & ATOM_DEVICE_CRT2_SUPPORT) DRM_INFO(" CRT2: %s\n", encoder_names[radeon_encoder->encoder_id]); if (devices & ATOM_DEVICE_LCD1_SUPPORT) DRM_INFO(" LCD1: %s\n", encoder_names[radeon_encoder->encoder_id]); if (devices & ATOM_DEVICE_DFP1_SUPPORT) DRM_INFO(" DFP1: %s\n", encoder_names[radeon_encoder->encoder_id]); if (devices & ATOM_DEVICE_DFP2_SUPPORT) DRM_INFO(" DFP2: %s\n", encoder_names[radeon_encoder->encoder_id]); if (devices & ATOM_DEVICE_DFP3_SUPPORT) DRM_INFO(" DFP3: %s\n", encoder_names[radeon_encoder->encoder_id]); if (devices & ATOM_DEVICE_DFP4_SUPPORT) DRM_INFO(" DFP4: %s\n", encoder_names[radeon_encoder->encoder_id]); if (devices & ATOM_DEVICE_DFP5_SUPPORT) DRM_INFO(" DFP5: %s\n", encoder_names[radeon_encoder->encoder_id]); if (devices & ATOM_DEVICE_DFP6_SUPPORT) DRM_INFO(" DFP6: %s\n", encoder_names[radeon_encoder->encoder_id]); if (devices & ATOM_DEVICE_TV1_SUPPORT) DRM_INFO(" TV1: %s\n", encoder_names[radeon_encoder->encoder_id]); if (devices & ATOM_DEVICE_CV_SUPPORT) DRM_INFO(" CV: %s\n", encoder_names[radeon_encoder->encoder_id]); } } i++; } } static bool radeon_setup_enc_conn(struct drm_device *dev) { struct radeon_device *rdev = dev->dev_private; struct drm_connector *drm_connector; bool ret = false; if (rdev->bios) { if (rdev->is_atom_bios) { ret = radeon_get_atom_connector_info_from_supported_devices_table(dev); if (ret == false) ret = radeon_get_atom_connector_info_from_object_table(dev); } else { ret = radeon_get_legacy_connector_info_from_bios(dev); if (ret == false) ret = radeon_get_legacy_connector_info_from_table(dev); } } else { if (!ASIC_IS_AVIVO(rdev)) ret = radeon_get_legacy_connector_info_from_table(dev); } if (ret) { radeon_setup_encoder_clones(dev); radeon_print_display_setup(dev); list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) radeon_ddc_dump(drm_connector); } return ret; } int radeon_ddc_get_modes(struct radeon_connector *radeon_connector) { struct drm_device *dev = radeon_connector->base.dev; struct radeon_device *rdev = dev->dev_private; int ret = 0; /* on hw with routers, select right port */ if (radeon_connector->router.ddc_valid) radeon_router_select_ddc_port(radeon_connector); if ((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_DisplayPort) || (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP)) { struct radeon_connector_atom_dig *dig = radeon_connector->con_priv; if ((dig->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT || dig->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) && dig->dp_i2c_bus) radeon_connector->edid = drm_get_edid(&radeon_connector->base, &dig->dp_i2c_bus->adapter); } if (!radeon_connector->ddc_bus) return -1; if (!radeon_connector->edid) { radeon_connector->edid = drm_get_edid(&radeon_connector->base, &radeon_connector->ddc_bus->adapter); } if (!radeon_connector->edid) { if (rdev->is_atom_bios) { /* some laptops provide a hardcoded edid in rom for LCDs */ if (((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_LVDS) || (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP))) radeon_connector->edid = radeon_bios_get_hardcoded_edid(rdev); } else /* some servers provide a hardcoded edid in rom for KVMs */ radeon_connector->edid = radeon_bios_get_hardcoded_edid(rdev); } if (radeon_connector->edid) { drm_mode_connector_update_edid_property(&radeon_connector->base, radeon_connector->edid); ret = drm_add_edid_modes(&radeon_connector->base, radeon_connector->edid); return ret; } drm_mode_connector_update_edid_property(&radeon_connector->base, NULL); return 0; } static int radeon_ddc_dump(struct drm_connector *connector) { struct edid *edid; struct radeon_connector *radeon_connector = to_radeon_connector(connector); int ret = 0; /* on hw with routers, select right port */ if (radeon_connector->router.ddc_valid) radeon_router_select_ddc_port(radeon_connector); if (!radeon_connector->ddc_bus) return -1; edid = drm_get_edid(connector, &radeon_connector->ddc_bus->adapter); if (edid) { kfree(edid); } return ret; } static inline uint32_t radeon_div(uint64_t n, uint32_t d) { uint64_t mod; n += d / 2; mod = do_div(n, d); return n; } void radeon_compute_pll(struct radeon_pll *pll, uint64_t freq, uint32_t *dot_clock_p, uint32_t *fb_div_p, uint32_t *frac_fb_div_p, uint32_t *ref_div_p, uint32_t *post_div_p) { uint32_t min_ref_div = pll->min_ref_div; uint32_t max_ref_div = pll->max_ref_div; uint32_t min_post_div = pll->min_post_div; uint32_t max_post_div = pll->max_post_div; uint32_t min_fractional_feed_div = 0; uint32_t max_fractional_feed_div = 0; uint32_t best_vco = pll->best_vco; uint32_t best_post_div = 1; uint32_t best_ref_div = 1; uint32_t best_feedback_div = 1; uint32_t best_frac_feedback_div = 0; uint32_t best_freq = -1; uint32_t best_error = 0xffffffff; uint32_t best_vco_diff = 1; uint32_t post_div; u32 pll_out_min, pll_out_max; DRM_DEBUG_KMS("PLL freq %llu %u %u\n", freq, pll->min_ref_div, pll->max_ref_div); freq = freq * 1000; if (pll->flags & RADEON_PLL_IS_LCD) { pll_out_min = pll->lcd_pll_out_min; pll_out_max = pll->lcd_pll_out_max; } else { pll_out_min = pll->pll_out_min; pll_out_max = pll->pll_out_max; } if (pll->flags & RADEON_PLL_USE_REF_DIV) min_ref_div = max_ref_div = pll->reference_div; else { while (min_ref_div < max_ref_div-1) { uint32_t mid = (min_ref_div + max_ref_div) / 2; uint32_t pll_in = pll->reference_freq / mid; if (pll_in < pll->pll_in_min) max_ref_div = mid; else if (pll_in > pll->pll_in_max) min_ref_div = mid; else break; } } if (pll->flags & RADEON_PLL_USE_POST_DIV) min_post_div = max_post_div = pll->post_div; if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) { min_fractional_feed_div = pll->min_frac_feedback_div; max_fractional_feed_div = pll->max_frac_feedback_div; } for (post_div = max_post_div; post_div >= min_post_div; --post_div) { uint32_t ref_div; if ((pll->flags & RADEON_PLL_NO_ODD_POST_DIV) && (post_div & 1)) continue; /* legacy radeons only have a few post_divs */ if (pll->flags & RADEON_PLL_LEGACY) { if ((post_div == 5) || (post_div == 7) || (post_div == 9) || (post_div == 10) || (post_div == 11) || (post_div == 13) || (post_div == 14) || (post_div == 15)) continue; } for (ref_div = min_ref_div; ref_div <= max_ref_div; ++ref_div) { uint32_t feedback_div, current_freq = 0, error, vco_diff; uint32_t pll_in = pll->reference_freq / ref_div; uint32_t min_feed_div = pll->min_feedback_div; uint32_t max_feed_div = pll->max_feedback_div + 1; if (pll_in < pll->pll_in_min || pll_in > pll->pll_in_max) continue; while (min_feed_div < max_feed_div) { uint32_t vco; uint32_t min_frac_feed_div = min_fractional_feed_div; uint32_t max_frac_feed_div = max_fractional_feed_div + 1; uint32_t frac_feedback_div; uint64_t tmp; feedback_div = (min_feed_div + max_feed_div) / 2; tmp = (uint64_t)pll->reference_freq * feedback_div; vco = radeon_div(tmp, ref_div); if (vco < pll_out_min) { min_feed_div = feedback_div + 1; continue; } else if (vco > pll_out_max) { max_feed_div = feedback_div; continue; } while (min_frac_feed_div < max_frac_feed_div) { frac_feedback_div = (min_frac_feed_div + max_frac_feed_div) / 2; tmp = (uint64_t)pll->reference_freq * 10000 * feedback_div; tmp += (uint64_t)pll->reference_freq * 1000 * frac_feedback_div; current_freq = radeon_div(tmp, ref_div * post_div); if (pll->flags & RADEON_PLL_PREFER_CLOSEST_LOWER) { if (freq < current_freq) error = 0xffffffff; else error = freq - current_freq; } else error = abs(current_freq - freq); vco_diff = abs(vco - best_vco); if ((best_vco == 0 && error < best_error) || (best_vco != 0 && ((best_error > 100 && error < best_error - 100) || (abs(error - best_error) < 100 && vco_diff < best_vco_diff)))) { best_post_div = post_div; best_ref_div = ref_div; best_feedback_div = feedback_div; best_frac_feedback_div = frac_feedback_div; best_freq = current_freq; best_error = error; best_vco_diff = vco_diff; } else if (current_freq == freq) { if (best_freq == -1) { best_post_div = post_div; best_ref_div = ref_div; best_feedback_div = feedback_div; best_frac_feedback_div = frac_feedback_div; best_freq = current_freq; best_error = error; best_vco_diff = vco_diff; } else if (((pll->flags & RADEON_PLL_PREFER_LOW_REF_DIV) && (ref_div < best_ref_div)) || ((pll->flags & RADEON_PLL_PREFER_HIGH_REF_DIV) && (ref_div > best_ref_div)) || ((pll->flags & RADEON_PLL_PREFER_LOW_FB_DIV) && (feedback_div < best_feedback_div)) || ((pll->flags & RADEON_PLL_PREFER_HIGH_FB_DIV) && (feedback_div > best_feedback_div)) || ((pll->flags & RADEON_PLL_PREFER_LOW_POST_DIV) && (post_div < best_post_div)) || ((pll->flags & RADEON_PLL_PREFER_HIGH_POST_DIV) && (post_div > best_post_div))) { best_post_div = post_div; best_ref_div = ref_div; best_feedback_div = feedback_div; best_frac_feedback_div = frac_feedback_div; best_freq = current_freq; best_error = error; best_vco_diff = vco_diff; } } if (current_freq < freq) min_frac_feed_div = frac_feedback_div + 1; else max_frac_feed_div = frac_feedback_div; } if (current_freq < freq) min_feed_div = feedback_div + 1; else max_feed_div = feedback_div; } } } *dot_clock_p = best_freq / 10000; *fb_div_p = best_feedback_div; *frac_fb_div_p = best_frac_feedback_div; *ref_div_p = best_ref_div; *post_div_p = best_post_div; } static void radeon_user_framebuffer_destroy(struct drm_framebuffer *fb) { struct radeon_framebuffer *radeon_fb = to_radeon_framebuffer(fb); if (radeon_fb->obj) { drm_gem_object_unreference_unlocked(radeon_fb->obj); } drm_framebuffer_cleanup(fb); kfree(radeon_fb); } static int radeon_user_framebuffer_create_handle(struct drm_framebuffer *fb, struct drm_file *file_priv, unsigned int *handle) { struct radeon_framebuffer *radeon_fb = to_radeon_framebuffer(fb); return drm_gem_handle_create(file_priv, radeon_fb->obj, handle); } static const struct drm_framebuffer_funcs radeon_fb_funcs = { .destroy = radeon_user_framebuffer_destroy, .create_handle = radeon_user_framebuffer_create_handle, }; void radeon_framebuffer_init(struct drm_device *dev, struct radeon_framebuffer *rfb, struct drm_mode_fb_cmd *mode_cmd, struct drm_gem_object *obj) { rfb->obj = obj; drm_framebuffer_init(dev, &rfb->base, &radeon_fb_funcs); drm_helper_mode_fill_fb_struct(&rfb->base, mode_cmd); } static struct drm_framebuffer * radeon_user_framebuffer_create(struct drm_device *dev, struct drm_file *file_priv, struct drm_mode_fb_cmd *mode_cmd) { struct drm_gem_object *obj; struct radeon_framebuffer *radeon_fb; obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handle); if (obj == NULL) { dev_err(&dev->pdev->dev, "No GEM object associated to handle 0x%08X, " "can't create framebuffer\n", mode_cmd->handle); return ERR_PTR(-ENOENT); } radeon_fb = kzalloc(sizeof(*radeon_fb), GFP_KERNEL); if (radeon_fb == NULL) return ERR_PTR(-ENOMEM); radeon_framebuffer_init(dev, radeon_fb, mode_cmd, obj); return &radeon_fb->base; } static void radeon_output_poll_changed(struct drm_device *dev) { struct radeon_device *rdev = dev->dev_private; radeon_fb_output_poll_changed(rdev); } static const struct drm_mode_config_funcs radeon_mode_funcs = { .fb_create = radeon_user_framebuffer_create, .output_poll_changed = radeon_output_poll_changed }; struct drm_prop_enum_list { int type; char *name; }; static struct drm_prop_enum_list radeon_tmds_pll_enum_list[] = { { 0, "driver" }, { 1, "bios" }, }; static struct drm_prop_enum_list radeon_tv_std_enum_list[] = { { TV_STD_NTSC, "ntsc" }, { TV_STD_PAL, "pal" }, { TV_STD_PAL_M, "pal-m" }, { TV_STD_PAL_60, "pal-60" }, { TV_STD_NTSC_J, "ntsc-j" }, { TV_STD_SCART_PAL, "scart-pal" }, { TV_STD_PAL_CN, "pal-cn" }, { TV_STD_SECAM, "secam" }, }; static struct drm_prop_enum_list radeon_underscan_enum_list[] = { { UNDERSCAN_OFF, "off" }, { UNDERSCAN_ON, "on" }, { UNDERSCAN_AUTO, "auto" }, }; static int radeon_modeset_create_props(struct radeon_device *rdev) { int i, sz; if (rdev->is_atom_bios) { rdev->mode_info.coherent_mode_property = drm_property_create(rdev->ddev, DRM_MODE_PROP_RANGE, "coherent", 2); if (!rdev->mode_info.coherent_mode_property) return -ENOMEM; rdev->mode_info.coherent_mode_property->values[0] = 0; rdev->mode_info.coherent_mode_property->values[1] = 1; } if (!ASIC_IS_AVIVO(rdev)) { sz = ARRAY_SIZE(radeon_tmds_pll_enum_list); rdev->mode_info.tmds_pll_property = drm_property_create(rdev->ddev, DRM_MODE_PROP_ENUM, "tmds_pll", sz); for (i = 0; i < sz; i++) { drm_property_add_enum(rdev->mode_info.tmds_pll_property, i, radeon_tmds_pll_enum_list[i].type, radeon_tmds_pll_enum_list[i].name); } } rdev->mode_info.load_detect_property = drm_property_create(rdev->ddev, DRM_MODE_PROP_RANGE, "load detection", 2); if (!rdev->mode_info.load_detect_property) return -ENOMEM; rdev->mode_info.load_detect_property->values[0] = 0; rdev->mode_info.load_detect_property->values[1] = 1; drm_mode_create_scaling_mode_property(rdev->ddev); sz = ARRAY_SIZE(radeon_tv_std_enum_list); rdev->mode_info.tv_std_property = drm_property_create(rdev->ddev, DRM_MODE_PROP_ENUM, "tv standard", sz); for (i = 0; i < sz; i++) { drm_property_add_enum(rdev->mode_info.tv_std_property, i, radeon_tv_std_enum_list[i].type, radeon_tv_std_enum_list[i].name); } sz = ARRAY_SIZE(radeon_underscan_enum_list); rdev->mode_info.underscan_property = drm_property_create(rdev->ddev, DRM_MODE_PROP_ENUM, "underscan", sz); for (i = 0; i < sz; i++) { drm_property_add_enum(rdev->mode_info.underscan_property, i, radeon_underscan_enum_list[i].type, radeon_underscan_enum_list[i].name); } rdev->mode_info.underscan_hborder_property = drm_property_create(rdev->ddev, DRM_MODE_PROP_RANGE, "underscan hborder", 2); if (!rdev->mode_info.underscan_hborder_property) return -ENOMEM; rdev->mode_info.underscan_hborder_property->values[0] = 0; rdev->mode_info.underscan_hborder_property->values[1] = 128; rdev->mode_info.underscan_vborder_property = drm_property_create(rdev->ddev, DRM_MODE_PROP_RANGE, "underscan vborder", 2); if (!rdev->mode_info.underscan_vborder_property) return -ENOMEM; rdev->mode_info.underscan_vborder_property->values[0] = 0; rdev->mode_info.underscan_vborder_property->values[1] = 128; return 0; } void radeon_update_display_priority(struct radeon_device *rdev) { /* adjustment options for the display watermarks */ if ((radeon_disp_priority == 0) || (radeon_disp_priority > 2)) { /* set display priority to high for r3xx, rv515 chips * this avoids flickering due to underflow to the * display controllers during heavy acceleration. * Don't force high on rs4xx igp chips as it seems to * affect the sound card. See kernel bug 15982. */ if ((ASIC_IS_R300(rdev) || (rdev->family == CHIP_RV515)) && !(rdev->flags & RADEON_IS_IGP)) rdev->disp_priority = 2; else rdev->disp_priority = 0; } else rdev->disp_priority = radeon_disp_priority; } int radeon_modeset_init(struct radeon_device *rdev) { int i; int ret; drm_mode_config_init(rdev->ddev); rdev->mode_info.mode_config_initialized = true; rdev->ddev->mode_config.funcs = (void *)&radeon_mode_funcs; if (ASIC_IS_DCE5(rdev)) { rdev->ddev->mode_config.max_width = 16384; rdev->ddev->mode_config.max_height = 16384; } else if (ASIC_IS_AVIVO(rdev)) { rdev->ddev->mode_config.max_width = 8192; rdev->ddev->mode_config.max_height = 8192; } else { rdev->ddev->mode_config.max_width = 4096; rdev->ddev->mode_config.max_height = 4096; } rdev->ddev->mode_config.fb_base = rdev->mc.aper_base; ret = radeon_modeset_create_props(rdev); if (ret) { return ret; } /* init i2c buses */ radeon_i2c_init(rdev); /* check combios for a valid hardcoded EDID - Sun servers */ if (!rdev->is_atom_bios) { /* check for hardcoded EDID in BIOS */ radeon_combios_check_hardcoded_edid(rdev); } /* allocate crtcs */ for (i = 0; i < rdev->num_crtc; i++) { radeon_crtc_init(rdev->ddev, i); } /* okay we should have all the bios connectors */ ret = radeon_setup_enc_conn(rdev->ddev); if (!ret) { return ret; } /* initialize hpd */ radeon_hpd_init(rdev); /* Initialize power management */ radeon_pm_init(rdev); radeon_fbdev_init(rdev); drm_kms_helper_poll_init(rdev->ddev); return 0; } void radeon_modeset_fini(struct radeon_device *rdev) { radeon_fbdev_fini(rdev); kfree(rdev->mode_info.bios_hardcoded_edid); radeon_pm_fini(rdev); if (rdev->mode_info.mode_config_initialized) { drm_kms_helper_poll_fini(rdev->ddev); radeon_hpd_fini(rdev); drm_mode_config_cleanup(rdev->ddev); rdev->mode_info.mode_config_initialized = false; } /* free i2c buses */ radeon_i2c_fini(rdev); } static bool is_hdtv_mode(struct drm_display_mode *mode) { /* try and guess if this is a tv or a monitor */ if ((mode->vdisplay == 480 && mode->hdisplay == 720) || /* 480p */ (mode->vdisplay == 576) || /* 576p */ (mode->vdisplay == 720) || /* 720p */ (mode->vdisplay == 1080)) /* 1080p */ return true; else return false; } bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { struct drm_device *dev = crtc->dev; struct radeon_device *rdev = dev->dev_private; struct drm_encoder *encoder; struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); struct radeon_encoder *radeon_encoder; struct drm_connector *connector; struct radeon_connector *radeon_connector; bool first = true; u32 src_v = 1, dst_v = 1; u32 src_h = 1, dst_h = 1; radeon_crtc->h_border = 0; radeon_crtc->v_border = 0; list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { if (encoder->crtc != crtc) continue; radeon_encoder = to_radeon_encoder(encoder); connector = radeon_get_connector_for_encoder(encoder); radeon_connector = to_radeon_connector(connector); if (first) { /* set scaling */ if (radeon_encoder->rmx_type == RMX_OFF) radeon_crtc->rmx_type = RMX_OFF; else if (mode->hdisplay < radeon_encoder->native_mode.hdisplay || mode->vdisplay < radeon_encoder->native_mode.vdisplay) radeon_crtc->rmx_type = radeon_encoder->rmx_type; else radeon_crtc->rmx_type = RMX_OFF; /* copy native mode */ memcpy(&radeon_crtc->native_mode, &radeon_encoder->native_mode, sizeof(struct drm_display_mode)); src_v = crtc->mode.vdisplay; dst_v = radeon_crtc->native_mode.vdisplay; src_h = crtc->mode.hdisplay; dst_h = radeon_crtc->native_mode.hdisplay; /* fix up for overscan on hdmi */ if (ASIC_IS_AVIVO(rdev) && (!(mode->flags & DRM_MODE_FLAG_INTERLACE)) && ((radeon_encoder->underscan_type == UNDERSCAN_ON) || ((radeon_encoder->underscan_type == UNDERSCAN_AUTO) && drm_detect_hdmi_monitor(radeon_connector->edid) && is_hdtv_mode(mode)))) { if (radeon_encoder->underscan_hborder != 0) radeon_crtc->h_border = radeon_encoder->underscan_hborder; else radeon_crtc->h_border = (mode->hdisplay >> 5) + 16; if (radeon_encoder->underscan_vborder != 0) radeon_crtc->v_border = radeon_encoder->underscan_vborder; else radeon_crtc->v_border = (mode->vdisplay >> 5) + 16; radeon_crtc->rmx_type = RMX_FULL; src_v = crtc->mode.vdisplay; dst_v = crtc->mode.vdisplay - (radeon_crtc->v_border * 2); src_h = crtc->mode.hdisplay; dst_h = crtc->mode.hdisplay - (radeon_crtc->h_border * 2); } first = false; } else { if (radeon_crtc->rmx_type != radeon_encoder->rmx_type) { /* WARNING: Right now this can't happen but * in the future we need to check that scaling * are consistent across different encoder * (ie all encoder can work with the same * scaling). */ DRM_ERROR("Scaling not consistent across encoder.\n"); return false; } } } if (radeon_crtc->rmx_type != RMX_OFF) { fixed20_12 a, b; a.full = dfixed_const(src_v); b.full = dfixed_const(dst_v); radeon_crtc->vsc.full = dfixed_div(a, b); a.full = dfixed_const(src_h); b.full = dfixed_const(dst_h); radeon_crtc->hsc.full = dfixed_div(a, b); } else { radeon_crtc->vsc.full = dfixed_const(1); radeon_crtc->hsc.full = dfixed_const(1); } return true; } /* * Retrieve current video scanout position of crtc on a given gpu. * * \param dev Device to query. * \param crtc Crtc to query. * \param *vpos Location where vertical scanout position should be stored. * \param *hpos Location where horizontal scanout position should go. * * Returns vpos as a positive number while in active scanout area. * Returns vpos as a negative number inside vblank, counting the number * of scanlines to go until end of vblank, e.g., -1 means "one scanline * until start of active scanout / end of vblank." * * \return Flags, or'ed together as follows: * * DRM_SCANOUTPOS_VALID = Query successfull. * DRM_SCANOUTPOS_INVBL = Inside vblank. * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of * this flag means that returned position may be offset by a constant but * unknown small number of scanlines wrt. real scanout position. * */ int radeon_get_crtc_scanoutpos(struct drm_device *dev, int crtc, int *vpos, int *hpos) { u32 stat_crtc = 0, vbl = 0, position = 0; int vbl_start, vbl_end, vtotal, ret = 0; bool in_vbl = true; struct radeon_device *rdev = dev->dev_private; if (ASIC_IS_DCE4(rdev)) { if (crtc == 0) { vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + EVERGREEN_CRTC0_REGISTER_OFFSET); position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + EVERGREEN_CRTC0_REGISTER_OFFSET); ret |= DRM_SCANOUTPOS_VALID; } if (crtc == 1) { vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + EVERGREEN_CRTC1_REGISTER_OFFSET); position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + EVERGREEN_CRTC1_REGISTER_OFFSET); ret |= DRM_SCANOUTPOS_VALID; } if (crtc == 2) { vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + EVERGREEN_CRTC2_REGISTER_OFFSET); position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + EVERGREEN_CRTC2_REGISTER_OFFSET); ret |= DRM_SCANOUTPOS_VALID; } if (crtc == 3) { vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + EVERGREEN_CRTC3_REGISTER_OFFSET); position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + EVERGREEN_CRTC3_REGISTER_OFFSET); ret |= DRM_SCANOUTPOS_VALID; } if (crtc == 4) { vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + EVERGREEN_CRTC4_REGISTER_OFFSET); position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + EVERGREEN_CRTC4_REGISTER_OFFSET); ret |= DRM_SCANOUTPOS_VALID; } if (crtc == 5) { vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + EVERGREEN_CRTC5_REGISTER_OFFSET); position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + EVERGREEN_CRTC5_REGISTER_OFFSET); ret |= DRM_SCANOUTPOS_VALID; } } else if (ASIC_IS_AVIVO(rdev)) { if (crtc == 0) { vbl = RREG32(AVIVO_D1CRTC_V_BLANK_START_END); position = RREG32(AVIVO_D1CRTC_STATUS_POSITION); ret |= DRM_SCANOUTPOS_VALID; } if (crtc == 1) { vbl = RREG32(AVIVO_D2CRTC_V_BLANK_START_END); position = RREG32(AVIVO_D2CRTC_STATUS_POSITION); ret |= DRM_SCANOUTPOS_VALID; } } else { /* Pre-AVIVO: Different encoding of scanout pos and vblank interval. */ if (crtc == 0) { /* Assume vbl_end == 0, get vbl_start from * upper 16 bits. */ vbl = (RREG32(RADEON_CRTC_V_TOTAL_DISP) & RADEON_CRTC_V_DISP) >> RADEON_CRTC_V_DISP_SHIFT; /* Only retrieve vpos from upper 16 bits, set hpos == 0. */ position = (RREG32(RADEON_CRTC_VLINE_CRNT_VLINE) >> 16) & RADEON_CRTC_V_TOTAL; stat_crtc = RREG32(RADEON_CRTC_STATUS); if (!(stat_crtc & 1)) in_vbl = false; ret |= DRM_SCANOUTPOS_VALID; } if (crtc == 1) { vbl = (RREG32(RADEON_CRTC2_V_TOTAL_DISP) & RADEON_CRTC_V_DISP) >> RADEON_CRTC_V_DISP_SHIFT; position = (RREG32(RADEON_CRTC2_VLINE_CRNT_VLINE) >> 16) & RADEON_CRTC_V_TOTAL; stat_crtc = RREG32(RADEON_CRTC2_STATUS); if (!(stat_crtc & 1)) in_vbl = false; ret |= DRM_SCANOUTPOS_VALID; } } /* Decode into vertical and horizontal scanout position. */ *vpos = position & 0x1fff; *hpos = (position >> 16) & 0x1fff; /* Valid vblank area boundaries from gpu retrieved? */ if (vbl > 0) { /* Yes: Decode. */ ret |= DRM_SCANOUTPOS_ACCURATE; vbl_start = vbl & 0x1fff; vbl_end = (vbl >> 16) & 0x1fff; } else { /* No: Fake something reasonable which gives at least ok results. */ vbl_start = rdev->mode_info.crtcs[crtc]->base.hwmode.crtc_vdisplay; vbl_end = 0; } /* Test scanout position against vblank region. */ if ((*vpos < vbl_start) && (*vpos >= vbl_end)) in_vbl = false; /* Check if inside vblank area and apply corrective offsets: * vpos will then be >=0 in video scanout area, but negative * within vblank area, counting down the number of lines until * start of scanout. */ /* Inside "upper part" of vblank area? Apply corrective offset if so: */ if (in_vbl && (*vpos >= vbl_start)) { vtotal = rdev->mode_info.crtcs[crtc]->base.hwmode.crtc_vtotal; *vpos = *vpos - vtotal; } /* Correct for shifted end of vbl at vbl_end. */ *vpos = *vpos - vbl_end; /* In vblank? */ if (in_vbl) ret |= DRM_SCANOUTPOS_INVBL; return ret; }