| /* |
| * 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 <drm/drmP.h> |
| #include <drm/radeon_drm.h> |
| #include "radeon.h" |
| |
| #include "atom.h" |
| #include <asm/div64.h> |
| |
| #include <linux/pm_runtime.h> |
| #include <drm/drm_crtc_helper.h> |
| #include <drm/drm_plane_helper.h> |
| #include <drm/drm_edid.h> |
| |
| #include <linux/gcd.h> |
| |
| 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)); |
| } |
| |
| /* Only change bit 0 of LUT_SEL, other bits are set elsewhere */ |
| WREG32_P(AVIVO_D1GRPH_LUT_SEL + radeon_crtc->crtc_offset, radeon_crtc->crtc_id, ~1); |
| } |
| |
| static void dce4_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 dce5_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(NI_INPUT_CSC_CONTROL + radeon_crtc->crtc_offset, |
| (NI_INPUT_CSC_GRPH_MODE(NI_INPUT_CSC_BYPASS) | |
| NI_INPUT_CSC_OVL_MODE(NI_INPUT_CSC_BYPASS))); |
| WREG32(NI_PRESCALE_GRPH_CONTROL + radeon_crtc->crtc_offset, |
| NI_GRPH_PRESCALE_BYPASS); |
| WREG32(NI_PRESCALE_OVL_CONTROL + radeon_crtc->crtc_offset, |
| NI_OVL_PRESCALE_BYPASS); |
| WREG32(NI_INPUT_GAMMA_CONTROL + radeon_crtc->crtc_offset, |
| (NI_GRPH_INPUT_GAMMA_MODE(NI_INPUT_GAMMA_USE_LUT) | |
| NI_OVL_INPUT_GAMMA_MODE(NI_INPUT_GAMMA_USE_LUT))); |
| |
| 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)); |
| } |
| |
| WREG32(NI_DEGAMMA_CONTROL + radeon_crtc->crtc_offset, |
| (NI_GRPH_DEGAMMA_MODE(NI_DEGAMMA_BYPASS) | |
| NI_OVL_DEGAMMA_MODE(NI_DEGAMMA_BYPASS) | |
| NI_ICON_DEGAMMA_MODE(NI_DEGAMMA_BYPASS) | |
| NI_CURSOR_DEGAMMA_MODE(NI_DEGAMMA_BYPASS))); |
| WREG32(NI_GAMUT_REMAP_CONTROL + radeon_crtc->crtc_offset, |
| (NI_GRPH_GAMUT_REMAP_MODE(NI_GAMUT_REMAP_BYPASS) | |
| NI_OVL_GAMUT_REMAP_MODE(NI_GAMUT_REMAP_BYPASS))); |
| WREG32(NI_REGAMMA_CONTROL + radeon_crtc->crtc_offset, |
| (NI_GRPH_REGAMMA_MODE(NI_REGAMMA_BYPASS) | |
| NI_OVL_REGAMMA_MODE(NI_REGAMMA_BYPASS))); |
| WREG32(NI_OUTPUT_CSC_CONTROL + radeon_crtc->crtc_offset, |
| (NI_OUTPUT_CSC_GRPH_MODE(radeon_crtc->output_csc) | |
| NI_OUTPUT_CSC_OVL_MODE(NI_OUTPUT_CSC_BYPASS))); |
| /* XXX match this to the depth of the crtc fmt block, move to modeset? */ |
| WREG32(0x6940 + radeon_crtc->crtc_offset, 0); |
| if (ASIC_IS_DCE8(rdev)) { |
| /* XXX this only needs to be programmed once per crtc at startup, |
| * not sure where the best place for it is |
| */ |
| WREG32(CIK_ALPHA_CONTROL + radeon_crtc->crtc_offset, |
| CIK_CURSOR_ALPHA_BLND_ENA); |
| } |
| } |
| |
| 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_DCE5(rdev)) |
| dce5_crtc_load_lut(crtc); |
| else if (ASIC_IS_DCE4(rdev)) |
| dce4_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 int radeon_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, |
| u16 *blue, uint32_t size) |
| { |
| struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); |
| int i; |
| |
| /* userspace palettes are always correct as is */ |
| for (i = 0; i < size; 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); |
| |
| return 0; |
| } |
| |
| static void radeon_crtc_destroy(struct drm_crtc *crtc) |
| { |
| struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); |
| |
| drm_crtc_cleanup(crtc); |
| destroy_workqueue(radeon_crtc->flip_queue); |
| kfree(radeon_crtc); |
| } |
| |
| /** |
| * radeon_unpin_work_func - unpin old buffer object |
| * |
| * @__work - kernel work item |
| * |
| * Unpin the old frame buffer object outside of the interrupt handler |
| */ |
| static void radeon_unpin_work_func(struct work_struct *__work) |
| { |
| struct radeon_flip_work *work = |
| container_of(__work, struct radeon_flip_work, unpin_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"); |
| |
| drm_gem_object_unreference_unlocked(&work->old_rbo->gem_base); |
| kfree(work); |
| } |
| |
| void radeon_crtc_handle_vblank(struct radeon_device *rdev, int crtc_id) |
| { |
| struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id]; |
| unsigned long flags; |
| u32 update_pending; |
| int vpos, hpos; |
| |
| /* can happen during initialization */ |
| if (radeon_crtc == NULL) |
| return; |
| |
| /* Skip the pageflip completion check below (based on polling) on |
| * asics which reliably support hw pageflip completion irqs. pflip |
| * irqs are a reliable and race-free method of handling pageflip |
| * completion detection. A use_pflipirq module parameter < 2 allows |
| * to override this in case of asics with faulty pflip irqs. |
| * A module parameter of 0 would only use this polling based path, |
| * a parameter of 1 would use pflip irq only as a backup to this |
| * path, as in Linux 3.16. |
| */ |
| if ((radeon_use_pflipirq == 2) && ASIC_IS_DCE4(rdev)) |
| return; |
| |
| spin_lock_irqsave(&rdev->ddev->event_lock, flags); |
| if (radeon_crtc->flip_status != RADEON_FLIP_SUBMITTED) { |
| DRM_DEBUG_DRIVER("radeon_crtc->flip_status = %d != " |
| "RADEON_FLIP_SUBMITTED(%d)\n", |
| radeon_crtc->flip_status, |
| RADEON_FLIP_SUBMITTED); |
| spin_unlock_irqrestore(&rdev->ddev->event_lock, flags); |
| return; |
| } |
| |
| update_pending = radeon_page_flip_pending(rdev, crtc_id); |
| |
| /* 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, |
| USE_REAL_VBLANKSTART, |
| &vpos, &hpos, NULL, NULL, |
| &rdev->mode_info.crtcs[crtc_id]->base.hwmode)) && |
| ((vpos >= (99 * rdev->mode_info.crtcs[crtc_id]->base.hwmode.crtc_vdisplay)/100) || |
| (vpos < 0 && !ASIC_IS_AVIVO(rdev)))) { |
| /* crtc didn't flip in this target vblank interval, |
| * but flip is pending in crtc. Based on the current |
| * scanout position we know that the current frame is |
| * (nearly) complete and the flip will (likely) |
| * complete before the start of the next frame. |
| */ |
| update_pending = 0; |
| } |
| spin_unlock_irqrestore(&rdev->ddev->event_lock, flags); |
| if (!update_pending) |
| radeon_crtc_handle_flip(rdev, crtc_id); |
| } |
| |
| /** |
| * radeon_crtc_handle_flip - page flip completed |
| * |
| * @rdev: radeon device pointer |
| * @crtc_id: crtc number this event is for |
| * |
| * Called when we are sure that a page flip for this crtc is completed. |
| */ |
| 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_flip_work *work; |
| unsigned long flags; |
| |
| /* this can happen at init */ |
| if (radeon_crtc == NULL) |
| return; |
| |
| spin_lock_irqsave(&rdev->ddev->event_lock, flags); |
| work = radeon_crtc->flip_work; |
| if (radeon_crtc->flip_status != RADEON_FLIP_SUBMITTED) { |
| DRM_DEBUG_DRIVER("radeon_crtc->flip_status = %d != " |
| "RADEON_FLIP_SUBMITTED(%d)\n", |
| radeon_crtc->flip_status, |
| RADEON_FLIP_SUBMITTED); |
| spin_unlock_irqrestore(&rdev->ddev->event_lock, flags); |
| return; |
| } |
| |
| /* Pageflip completed. Clean up. */ |
| radeon_crtc->flip_status = RADEON_FLIP_NONE; |
| radeon_crtc->flip_work = NULL; |
| |
| /* wakeup userspace */ |
| if (work->event) |
| drm_crtc_send_vblank_event(&radeon_crtc->base, work->event); |
| |
| spin_unlock_irqrestore(&rdev->ddev->event_lock, flags); |
| |
| drm_crtc_vblank_put(&radeon_crtc->base); |
| radeon_irq_kms_pflip_irq_put(rdev, work->crtc_id); |
| queue_work(radeon_crtc->flip_queue, &work->unpin_work); |
| } |
| |
| /** |
| * radeon_flip_work_func - page flip framebuffer |
| * |
| * @work - kernel work item |
| * |
| * Wait for the buffer object to become idle and do the actual page flip |
| */ |
| static void radeon_flip_work_func(struct work_struct *__work) |
| { |
| struct radeon_flip_work *work = |
| container_of(__work, struct radeon_flip_work, flip_work); |
| struct radeon_device *rdev = work->rdev; |
| struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[work->crtc_id]; |
| |
| struct drm_crtc *crtc = &radeon_crtc->base; |
| unsigned long flags; |
| int r; |
| int vpos, hpos, stat, min_udelay = 0; |
| unsigned repcnt = 4; |
| struct drm_vblank_crtc *vblank = &crtc->dev->vblank[work->crtc_id]; |
| |
| down_read(&rdev->exclusive_lock); |
| if (work->fence) { |
| struct radeon_fence *fence; |
| |
| fence = to_radeon_fence(work->fence); |
| if (fence && fence->rdev == rdev) { |
| r = radeon_fence_wait(fence, false); |
| if (r == -EDEADLK) { |
| up_read(&rdev->exclusive_lock); |
| do { |
| r = radeon_gpu_reset(rdev); |
| } while (r == -EAGAIN); |
| down_read(&rdev->exclusive_lock); |
| } |
| } else |
| r = fence_wait(work->fence, false); |
| |
| if (r) |
| DRM_ERROR("failed to wait on page flip fence (%d)!\n", r); |
| |
| /* We continue with the page flip even if we failed to wait on |
| * the fence, otherwise the DRM core and userspace will be |
| * confused about which BO the CRTC is scanning out |
| */ |
| |
| fence_put(work->fence); |
| work->fence = NULL; |
| } |
| |
| /* We borrow the event spin lock for protecting flip_status */ |
| spin_lock_irqsave(&crtc->dev->event_lock, flags); |
| |
| /* set the proper interrupt */ |
| radeon_irq_kms_pflip_irq_get(rdev, radeon_crtc->crtc_id); |
| |
| /* If this happens to execute within the "virtually extended" vblank |
| * interval before the start of the real vblank interval then it needs |
| * to delay programming the mmio flip until the real vblank is entered. |
| * This prevents completing a flip too early due to the way we fudge |
| * our vblank counter and vblank timestamps in order to work around the |
| * problem that the hw fires vblank interrupts before actual start of |
| * vblank (when line buffer refilling is done for a frame). It |
| * complements the fudging logic in radeon_get_crtc_scanoutpos() for |
| * timestamping and radeon_get_vblank_counter_kms() for vblank counts. |
| * |
| * In practice this won't execute very often unless on very fast |
| * machines because the time window for this to happen is very small. |
| */ |
| while (radeon_crtc->enabled && --repcnt) { |
| /* GET_DISTANCE_TO_VBLANKSTART returns distance to real vblank |
| * start in hpos, and to the "fudged earlier" vblank start in |
| * vpos. |
| */ |
| stat = radeon_get_crtc_scanoutpos(rdev->ddev, work->crtc_id, |
| GET_DISTANCE_TO_VBLANKSTART, |
| &vpos, &hpos, NULL, NULL, |
| &crtc->hwmode); |
| |
| if ((stat & (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_ACCURATE)) != |
| (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_ACCURATE) || |
| !(vpos >= 0 && hpos <= 0)) |
| break; |
| |
| /* Sleep at least until estimated real start of hw vblank */ |
| min_udelay = (-hpos + 1) * max(vblank->linedur_ns / 1000, 5); |
| if (min_udelay > vblank->framedur_ns / 2000) { |
| /* Don't wait ridiculously long - something is wrong */ |
| repcnt = 0; |
| break; |
| } |
| spin_unlock_irqrestore(&crtc->dev->event_lock, flags); |
| usleep_range(min_udelay, 2 * min_udelay); |
| spin_lock_irqsave(&crtc->dev->event_lock, flags); |
| }; |
| |
| if (!repcnt) |
| DRM_DEBUG_DRIVER("Delay problem on crtc %d: min_udelay %d, " |
| "framedur %d, linedur %d, stat %d, vpos %d, " |
| "hpos %d\n", work->crtc_id, min_udelay, |
| vblank->framedur_ns / 1000, |
| vblank->linedur_ns / 1000, stat, vpos, hpos); |
| |
| /* do the flip (mmio) */ |
| radeon_page_flip(rdev, radeon_crtc->crtc_id, work->base, work->async); |
| |
| radeon_crtc->flip_status = RADEON_FLIP_SUBMITTED; |
| spin_unlock_irqrestore(&crtc->dev->event_lock, flags); |
| up_read(&rdev->exclusive_lock); |
| } |
| |
| static int radeon_crtc_page_flip(struct drm_crtc *crtc, |
| struct drm_framebuffer *fb, |
| struct drm_pending_vblank_event *event, |
| uint32_t page_flip_flags) |
| { |
| 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_flip_work *work; |
| struct radeon_bo *new_rbo; |
| uint32_t tiling_flags, pitch_pixels; |
| uint64_t base; |
| unsigned long flags; |
| int r; |
| |
| work = kzalloc(sizeof *work, GFP_KERNEL); |
| if (work == NULL) |
| return -ENOMEM; |
| |
| INIT_WORK(&work->flip_work, radeon_flip_work_func); |
| INIT_WORK(&work->unpin_work, radeon_unpin_work_func); |
| |
| work->rdev = rdev; |
| work->crtc_id = radeon_crtc->crtc_id; |
| work->event = event; |
| work->async = (page_flip_flags & DRM_MODE_PAGE_FLIP_ASYNC) != 0; |
| |
| /* schedule unpin of the old buffer */ |
| old_radeon_fb = to_radeon_framebuffer(crtc->primary->fb); |
| obj = old_radeon_fb->obj; |
| |
| /* take a reference to the old object */ |
| drm_gem_object_reference(obj); |
| work->old_rbo = gem_to_radeon_bo(obj); |
| |
| new_radeon_fb = to_radeon_framebuffer(fb); |
| obj = new_radeon_fb->obj; |
| new_rbo = gem_to_radeon_bo(obj); |
| |
| /* pin the new buffer */ |
| DRM_DEBUG_DRIVER("flip-ioctl() cur_rbo = %p, new_rbo = %p\n", |
| work->old_rbo, new_rbo); |
| |
| r = radeon_bo_reserve(new_rbo, false); |
| if (unlikely(r != 0)) { |
| DRM_ERROR("failed to reserve new rbo buffer before flip\n"); |
| goto cleanup; |
| } |
| /* Only 27 bit offset for legacy CRTC */ |
| r = radeon_bo_pin_restricted(new_rbo, RADEON_GEM_DOMAIN_VRAM, |
| ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27, &base); |
| if (unlikely(r != 0)) { |
| radeon_bo_unreserve(new_rbo); |
| r = -EINVAL; |
| DRM_ERROR("failed to pin new rbo buffer before flip\n"); |
| goto cleanup; |
| } |
| work->fence = fence_get(reservation_object_get_excl(new_rbo->tbo.resv)); |
| radeon_bo_get_tiling_flags(new_rbo, &tiling_flags, NULL); |
| radeon_bo_unreserve(new_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->pitches[0] / (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; |
| } |
| work->base = base; |
| |
| r = drm_crtc_vblank_get(crtc); |
| if (r) { |
| DRM_ERROR("failed to get vblank before flip\n"); |
| goto pflip_cleanup; |
| } |
| |
| /* We borrow the event spin lock for protecting flip_work */ |
| spin_lock_irqsave(&crtc->dev->event_lock, flags); |
| |
| if (radeon_crtc->flip_status != RADEON_FLIP_NONE) { |
| DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); |
| spin_unlock_irqrestore(&crtc->dev->event_lock, flags); |
| r = -EBUSY; |
| goto vblank_cleanup; |
| } |
| radeon_crtc->flip_status = RADEON_FLIP_PENDING; |
| radeon_crtc->flip_work = work; |
| |
| /* update crtc fb */ |
| crtc->primary->fb = fb; |
| |
| spin_unlock_irqrestore(&crtc->dev->event_lock, flags); |
| |
| queue_work(radeon_crtc->flip_queue, &work->flip_work); |
| return 0; |
| |
| vblank_cleanup: |
| drm_crtc_vblank_put(crtc); |
| |
| pflip_cleanup: |
| if (unlikely(radeon_bo_reserve(new_rbo, false) != 0)) { |
| DRM_ERROR("failed to reserve new rbo in error path\n"); |
| goto cleanup; |
| } |
| if (unlikely(radeon_bo_unpin(new_rbo) != 0)) { |
| DRM_ERROR("failed to unpin new rbo in error path\n"); |
| } |
| radeon_bo_unreserve(new_rbo); |
| |
| cleanup: |
| drm_gem_object_unreference_unlocked(&work->old_rbo->gem_base); |
| fence_put(work->fence); |
| kfree(work); |
| return r; |
| } |
| |
| static int |
| radeon_crtc_set_config(struct drm_mode_set *set) |
| { |
| struct drm_device *dev; |
| struct radeon_device *rdev; |
| struct drm_crtc *crtc; |
| bool active = false; |
| int ret; |
| |
| if (!set || !set->crtc) |
| return -EINVAL; |
| |
| dev = set->crtc->dev; |
| |
| ret = pm_runtime_get_sync(dev->dev); |
| if (ret < 0) |
| return ret; |
| |
| ret = drm_crtc_helper_set_config(set); |
| |
| list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) |
| if (crtc->enabled) |
| active = true; |
| |
| pm_runtime_mark_last_busy(dev->dev); |
| |
| rdev = dev->dev_private; |
| /* if we have active crtcs and we don't have a power ref, |
| take the current one */ |
| if (active && !rdev->have_disp_power_ref) { |
| rdev->have_disp_power_ref = true; |
| return ret; |
| } |
| /* if we have no active crtcs, then drop the power ref |
| we got before */ |
| if (!active && rdev->have_disp_power_ref) { |
| pm_runtime_put_autosuspend(dev->dev); |
| rdev->have_disp_power_ref = false; |
| } |
| |
| /* drop the power reference we got coming in here */ |
| pm_runtime_put_autosuspend(dev->dev); |
| return ret; |
| } |
| |
| static const struct drm_crtc_funcs radeon_crtc_funcs = { |
| .cursor_set2 = radeon_crtc_cursor_set2, |
| .cursor_move = radeon_crtc_cursor_move, |
| .gamma_set = radeon_crtc_gamma_set, |
| .set_config = radeon_crtc_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; |
| radeon_crtc->flip_queue = create_singlethread_workqueue("radeon-crtc"); |
| rdev->mode_info.crtcs[index] = radeon_crtc; |
| |
| if (rdev->family >= CHIP_BONAIRE) { |
| radeon_crtc->max_cursor_width = CIK_CURSOR_WIDTH; |
| radeon_crtc->max_cursor_height = CIK_CURSOR_HEIGHT; |
| } else { |
| radeon_crtc->max_cursor_width = CURSOR_WIDTH; |
| radeon_crtc->max_cursor_height = CURSOR_HEIGHT; |
| } |
| dev->mode_config.cursor_width = radeon_crtc->max_cursor_width; |
| dev->mode_config.cursor_height = radeon_crtc->max_cursor_height; |
| |
| #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[38] = { |
| "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", |
| "INTERNAL_VCE", |
| "INTERNAL_UNIPHY3", |
| }; |
| |
| 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->name); |
| 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; |
| 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); |
| } |
| |
| return ret; |
| } |
| |
| /* avivo */ |
| |
| /** |
| * avivo_reduce_ratio - fractional number reduction |
| * |
| * @nom: nominator |
| * @den: denominator |
| * @nom_min: minimum value for nominator |
| * @den_min: minimum value for denominator |
| * |
| * Find the greatest common divisor and apply it on both nominator and |
| * denominator, but make nominator and denominator are at least as large |
| * as their minimum values. |
| */ |
| static void avivo_reduce_ratio(unsigned *nom, unsigned *den, |
| unsigned nom_min, unsigned den_min) |
| { |
| unsigned tmp; |
| |
| /* reduce the numbers to a simpler ratio */ |
| tmp = gcd(*nom, *den); |
| *nom /= tmp; |
| *den /= tmp; |
| |
| /* make sure nominator is large enough */ |
| if (*nom < nom_min) { |
| tmp = DIV_ROUND_UP(nom_min, *nom); |
| *nom *= tmp; |
| *den *= tmp; |
| } |
| |
| /* make sure the denominator is large enough */ |
| if (*den < den_min) { |
| tmp = DIV_ROUND_UP(den_min, *den); |
| *nom *= tmp; |
| *den *= tmp; |
| } |
| } |
| |
| /** |
| * avivo_get_fb_ref_div - feedback and ref divider calculation |
| * |
| * @nom: nominator |
| * @den: denominator |
| * @post_div: post divider |
| * @fb_div_max: feedback divider maximum |
| * @ref_div_max: reference divider maximum |
| * @fb_div: resulting feedback divider |
| * @ref_div: resulting reference divider |
| * |
| * Calculate feedback and reference divider for a given post divider. Makes |
| * sure we stay within the limits. |
| */ |
| static void avivo_get_fb_ref_div(unsigned nom, unsigned den, unsigned post_div, |
| unsigned fb_div_max, unsigned ref_div_max, |
| unsigned *fb_div, unsigned *ref_div) |
| { |
| /* limit reference * post divider to a maximum */ |
| ref_div_max = max(min(100 / post_div, ref_div_max), 1u); |
| |
| /* get matching reference and feedback divider */ |
| *ref_div = min(max(DIV_ROUND_CLOSEST(den, post_div), 1u), ref_div_max); |
| *fb_div = DIV_ROUND_CLOSEST(nom * *ref_div * post_div, den); |
| |
| /* limit fb divider to its maximum */ |
| if (*fb_div > fb_div_max) { |
| *ref_div = DIV_ROUND_CLOSEST(*ref_div * fb_div_max, *fb_div); |
| *fb_div = fb_div_max; |
| } |
| } |
| |
| /** |
| * radeon_compute_pll_avivo - compute PLL paramaters |
| * |
| * @pll: information about the PLL |
| * @dot_clock_p: resulting pixel clock |
| * fb_div_p: resulting feedback divider |
| * frac_fb_div_p: fractional part of the feedback divider |
| * ref_div_p: resulting reference divider |
| * post_div_p: resulting reference divider |
| * |
| * Try to calculate the PLL parameters to generate the given frequency: |
| * dot_clock = (ref_freq * feedback_div) / (ref_div * post_div) |
| */ |
| void radeon_compute_pll_avivo(struct radeon_pll *pll, |
| u32 freq, |
| u32 *dot_clock_p, |
| u32 *fb_div_p, |
| u32 *frac_fb_div_p, |
| u32 *ref_div_p, |
| u32 *post_div_p) |
| { |
| unsigned target_clock = pll->flags & RADEON_PLL_USE_FRAC_FB_DIV ? |
| freq : freq / 10; |
| |
| unsigned fb_div_min, fb_div_max, fb_div; |
| unsigned post_div_min, post_div_max, post_div; |
| unsigned ref_div_min, ref_div_max, ref_div; |
| unsigned post_div_best, diff_best; |
| unsigned nom, den; |
| |
| /* determine allowed feedback divider range */ |
| fb_div_min = pll->min_feedback_div; |
| fb_div_max = pll->max_feedback_div; |
| |
| if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) { |
| fb_div_min *= 10; |
| fb_div_max *= 10; |
| } |
| |
| /* determine allowed ref divider range */ |
| if (pll->flags & RADEON_PLL_USE_REF_DIV) |
| ref_div_min = pll->reference_div; |
| else |
| ref_div_min = pll->min_ref_div; |
| |
| if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV && |
| pll->flags & RADEON_PLL_USE_REF_DIV) |
| ref_div_max = pll->reference_div; |
| else if (pll->flags & RADEON_PLL_PREFER_MINM_OVER_MAXP) |
| /* fix for problems on RS880 */ |
| ref_div_max = min(pll->max_ref_div, 7u); |
| else |
| ref_div_max = pll->max_ref_div; |
| |
| /* determine allowed post divider range */ |
| if (pll->flags & RADEON_PLL_USE_POST_DIV) { |
| post_div_min = pll->post_div; |
| post_div_max = pll->post_div; |
| } else { |
| unsigned vco_min, vco_max; |
| |
| if (pll->flags & RADEON_PLL_IS_LCD) { |
| vco_min = pll->lcd_pll_out_min; |
| vco_max = pll->lcd_pll_out_max; |
| } else { |
| vco_min = pll->pll_out_min; |
| vco_max = pll->pll_out_max; |
| } |
| |
| if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) { |
| vco_min *= 10; |
| vco_max *= 10; |
| } |
| |
| post_div_min = vco_min / target_clock; |
| if ((target_clock * post_div_min) < vco_min) |
| ++post_div_min; |
| if (post_div_min < pll->min_post_div) |
| post_div_min = pll->min_post_div; |
| |
| post_div_max = vco_max / target_clock; |
| if ((target_clock * post_div_max) > vco_max) |
| --post_div_max; |
| if (post_div_max > pll->max_post_div) |
| post_div_max = pll->max_post_div; |
| } |
| |
| /* represent the searched ratio as fractional number */ |
| nom = target_clock; |
| den = pll->reference_freq; |
| |
| /* reduce the numbers to a simpler ratio */ |
| avivo_reduce_ratio(&nom, &den, fb_div_min, post_div_min); |
| |
| /* now search for a post divider */ |
| if (pll->flags & RADEON_PLL_PREFER_MINM_OVER_MAXP) |
| post_div_best = post_div_min; |
| else |
| post_div_best = post_div_max; |
| diff_best = ~0; |
| |
| for (post_div = post_div_min; post_div <= post_div_max; ++post_div) { |
| unsigned diff; |
| avivo_get_fb_ref_div(nom, den, post_div, fb_div_max, |
| ref_div_max, &fb_div, &ref_div); |
| diff = abs(target_clock - (pll->reference_freq * fb_div) / |
| (ref_div * post_div)); |
| |
| if (diff < diff_best || (diff == diff_best && |
| !(pll->flags & RADEON_PLL_PREFER_MINM_OVER_MAXP))) { |
| |
| post_div_best = post_div; |
| diff_best = diff; |
| } |
| } |
| post_div = post_div_best; |
| |
| /* get the feedback and reference divider for the optimal value */ |
| avivo_get_fb_ref_div(nom, den, post_div, fb_div_max, ref_div_max, |
| &fb_div, &ref_div); |
| |
| /* reduce the numbers to a simpler ratio once more */ |
| /* this also makes sure that the reference divider is large enough */ |
| avivo_reduce_ratio(&fb_div, &ref_div, fb_div_min, ref_div_min); |
| |
| /* avoid high jitter with small fractional dividers */ |
| if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV && (fb_div % 10)) { |
| fb_div_min = max(fb_div_min, (9 - (fb_div % 10)) * 20 + 50); |
| if (fb_div < fb_div_min) { |
| unsigned tmp = DIV_ROUND_UP(fb_div_min, fb_div); |
| fb_div *= tmp; |
| ref_div *= tmp; |
| } |
| } |
| |
| /* and finally save the result */ |
| if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) { |
| *fb_div_p = fb_div / 10; |
| *frac_fb_div_p = fb_div % 10; |
| } else { |
| *fb_div_p = fb_div; |
| *frac_fb_div_p = 0; |
| } |
| |
| *dot_clock_p = ((pll->reference_freq * *fb_div_p * 10) + |
| (pll->reference_freq * *frac_fb_div_p)) / |
| (ref_div * post_div * 10); |
| *ref_div_p = ref_div; |
| *post_div_p = post_div; |
| |
| DRM_DEBUG_KMS("%d - %d, pll dividers - fb: %d.%d ref: %d, post %d\n", |
| freq, *dot_clock_p * 10, *fb_div_p, *frac_fb_div_p, |
| ref_div, post_div); |
| } |
| |
| /* pre-avivo */ |
| 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_legacy(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_out_min > 64800) |
| pll_out_min = 64800; |
| |
| 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; |
| DRM_DEBUG_KMS("%lld %d, pll dividers - fb: %d.%d ref: %d, post %d\n", |
| (long long)freq, |
| best_freq / 1000, best_feedback_div, best_frac_feedback_div, |
| best_ref_div, 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, |
| }; |
| |
| int |
| radeon_framebuffer_init(struct drm_device *dev, |
| struct radeon_framebuffer *rfb, |
| const struct drm_mode_fb_cmd2 *mode_cmd, |
| struct drm_gem_object *obj) |
| { |
| int ret; |
| rfb->obj = obj; |
| drm_helper_mode_fill_fb_struct(&rfb->base, mode_cmd); |
| ret = drm_framebuffer_init(dev, &rfb->base, &radeon_fb_funcs); |
| if (ret) { |
| rfb->obj = NULL; |
| return ret; |
| } |
| return 0; |
| } |
| |
| static struct drm_framebuffer * |
| radeon_user_framebuffer_create(struct drm_device *dev, |
| struct drm_file *file_priv, |
| const struct drm_mode_fb_cmd2 *mode_cmd) |
| { |
| struct drm_gem_object *obj; |
| struct radeon_framebuffer *radeon_fb; |
| int ret; |
| |
| obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]); |
| if (obj == NULL) { |
| dev_err(&dev->pdev->dev, "No GEM object associated to handle 0x%08X, " |
| "can't create framebuffer\n", mode_cmd->handles[0]); |
| return ERR_PTR(-ENOENT); |
| } |
| |
| radeon_fb = kzalloc(sizeof(*radeon_fb), GFP_KERNEL); |
| if (radeon_fb == NULL) { |
| drm_gem_object_unreference_unlocked(obj); |
| return ERR_PTR(-ENOMEM); |
| } |
| |
| ret = radeon_framebuffer_init(dev, radeon_fb, mode_cmd, obj); |
| if (ret) { |
| kfree(radeon_fb); |
| drm_gem_object_unreference_unlocked(obj); |
| return ERR_PTR(ret); |
| } |
| |
| 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 |
| }; |
| |
| 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 struct drm_prop_enum_list radeon_audio_enum_list[] = |
| { { RADEON_AUDIO_DISABLE, "off" }, |
| { RADEON_AUDIO_ENABLE, "on" }, |
| { RADEON_AUDIO_AUTO, "auto" }, |
| }; |
| |
| /* XXX support different dither options? spatial, temporal, both, etc. */ |
| static struct drm_prop_enum_list radeon_dither_enum_list[] = |
| { { RADEON_FMT_DITHER_DISABLE, "off" }, |
| { RADEON_FMT_DITHER_ENABLE, "on" }, |
| }; |
| |
| static struct drm_prop_enum_list radeon_output_csc_enum_list[] = |
| { { RADEON_OUTPUT_CSC_BYPASS, "bypass" }, |
| { RADEON_OUTPUT_CSC_TVRGB, "tvrgb" }, |
| { RADEON_OUTPUT_CSC_YCBCR601, "ycbcr601" }, |
| { RADEON_OUTPUT_CSC_YCBCR709, "ycbcr709" }, |
| }; |
| |
| static int radeon_modeset_create_props(struct radeon_device *rdev) |
| { |
| int sz; |
| |
| if (rdev->is_atom_bios) { |
| rdev->mode_info.coherent_mode_property = |
| drm_property_create_range(rdev->ddev, 0 , "coherent", 0, 1); |
| if (!rdev->mode_info.coherent_mode_property) |
| return -ENOMEM; |
| } |
| |
| if (!ASIC_IS_AVIVO(rdev)) { |
| sz = ARRAY_SIZE(radeon_tmds_pll_enum_list); |
| rdev->mode_info.tmds_pll_property = |
| drm_property_create_enum(rdev->ddev, 0, |
| "tmds_pll", |
| radeon_tmds_pll_enum_list, sz); |
| } |
| |
| rdev->mode_info.load_detect_property = |
| drm_property_create_range(rdev->ddev, 0, "load detection", 0, 1); |
| if (!rdev->mode_info.load_detect_property) |
| return -ENOMEM; |
| |
| 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_enum(rdev->ddev, 0, |
| "tv standard", |
| radeon_tv_std_enum_list, sz); |
| |
| sz = ARRAY_SIZE(radeon_underscan_enum_list); |
| rdev->mode_info.underscan_property = |
| drm_property_create_enum(rdev->ddev, 0, |
| "underscan", |
| radeon_underscan_enum_list, sz); |
| |
| rdev->mode_info.underscan_hborder_property = |
| drm_property_create_range(rdev->ddev, 0, |
| "underscan hborder", 0, 128); |
| if (!rdev->mode_info.underscan_hborder_property) |
| return -ENOMEM; |
| |
| rdev->mode_info.underscan_vborder_property = |
| drm_property_create_range(rdev->ddev, 0, |
| "underscan vborder", 0, 128); |
| if (!rdev->mode_info.underscan_vborder_property) |
| return -ENOMEM; |
| |
| sz = ARRAY_SIZE(radeon_audio_enum_list); |
| rdev->mode_info.audio_property = |
| drm_property_create_enum(rdev->ddev, 0, |
| "audio", |
| radeon_audio_enum_list, sz); |
| |
| sz = ARRAY_SIZE(radeon_dither_enum_list); |
| rdev->mode_info.dither_property = |
| drm_property_create_enum(rdev->ddev, 0, |
| "dither", |
| radeon_dither_enum_list, sz); |
| |
| sz = ARRAY_SIZE(radeon_output_csc_enum_list); |
| rdev->mode_info.output_csc_property = |
| drm_property_create_enum(rdev->ddev, 0, |
| "output_csc", |
| radeon_output_csc_enum_list, sz); |
| |
| 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; |
| |
| } |
| |
| /* |
| * Allocate hdmi structs and determine register offsets |
| */ |
| static void radeon_afmt_init(struct radeon_device *rdev) |
| { |
| int i; |
| |
| for (i = 0; i < RADEON_MAX_AFMT_BLOCKS; i++) |
| rdev->mode_info.afmt[i] = NULL; |
| |
| if (ASIC_IS_NODCE(rdev)) { |
| /* nothing to do */ |
| } else if (ASIC_IS_DCE4(rdev)) { |
| static uint32_t eg_offsets[] = { |
| EVERGREEN_CRTC0_REGISTER_OFFSET, |
| EVERGREEN_CRTC1_REGISTER_OFFSET, |
| EVERGREEN_CRTC2_REGISTER_OFFSET, |
| EVERGREEN_CRTC3_REGISTER_OFFSET, |
| EVERGREEN_CRTC4_REGISTER_OFFSET, |
| EVERGREEN_CRTC5_REGISTER_OFFSET, |
| 0x13830 - 0x7030, |
| }; |
| int num_afmt; |
| |
| /* DCE8 has 7 audio blocks tied to DIG encoders */ |
| /* DCE6 has 6 audio blocks tied to DIG encoders */ |
| /* DCE4/5 has 6 audio blocks tied to DIG encoders */ |
| /* DCE4.1 has 2 audio blocks tied to DIG encoders */ |
| if (ASIC_IS_DCE8(rdev)) |
| num_afmt = 7; |
| else if (ASIC_IS_DCE6(rdev)) |
| num_afmt = 6; |
| else if (ASIC_IS_DCE5(rdev)) |
| num_afmt = 6; |
| else if (ASIC_IS_DCE41(rdev)) |
| num_afmt = 2; |
| else /* DCE4 */ |
| num_afmt = 6; |
| |
| BUG_ON(num_afmt > ARRAY_SIZE(eg_offsets)); |
| for (i = 0; i < num_afmt; i++) { |
| rdev->mode_info.afmt[i] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); |
| if (rdev->mode_info.afmt[i]) { |
| rdev->mode_info.afmt[i]->offset = eg_offsets[i]; |
| rdev->mode_info.afmt[i]->id = i; |
| } |
| } |
| } else if (ASIC_IS_DCE3(rdev)) { |
| /* DCE3.x has 2 audio blocks tied to DIG encoders */ |
| rdev->mode_info.afmt[0] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); |
| if (rdev->mode_info.afmt[0]) { |
| rdev->mode_info.afmt[0]->offset = DCE3_HDMI_OFFSET0; |
| rdev->mode_info.afmt[0]->id = 0; |
| } |
| rdev->mode_info.afmt[1] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); |
| if (rdev->mode_info.afmt[1]) { |
| rdev->mode_info.afmt[1]->offset = DCE3_HDMI_OFFSET1; |
| rdev->mode_info.afmt[1]->id = 1; |
| } |
| } else if (ASIC_IS_DCE2(rdev)) { |
| /* DCE2 has at least 1 routable audio block */ |
| rdev->mode_info.afmt[0] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); |
| if (rdev->mode_info.afmt[0]) { |
| rdev->mode_info.afmt[0]->offset = DCE2_HDMI_OFFSET0; |
| rdev->mode_info.afmt[0]->id = 0; |
| } |
| /* r6xx has 2 routable audio blocks */ |
| if (rdev->family >= CHIP_R600) { |
| rdev->mode_info.afmt[1] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); |
| if (rdev->mode_info.afmt[1]) { |
| rdev->mode_info.afmt[1]->offset = DCE2_HDMI_OFFSET1; |
| rdev->mode_info.afmt[1]->id = 1; |
| } |
| } |
| } |
| } |
| |
| static void radeon_afmt_fini(struct radeon_device *rdev) |
| { |
| int i; |
| |
| for (i = 0; i < RADEON_MAX_AFMT_BLOCKS; i++) { |
| kfree(rdev->mode_info.afmt[i]); |
| rdev->mode_info.afmt[i] = NULL; |
| } |
| } |
| |
| 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 = &radeon_mode_funcs; |
| |
| if (radeon_use_pflipirq == 2 && rdev->family >= CHIP_R600) |
| rdev->ddev->mode_config.async_page_flip = true; |
| |
| 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.preferred_depth = 24; |
| rdev->ddev->mode_config.prefer_shadow = 1; |
| |
| 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; |
| } |
| |
| /* init dig PHYs, disp eng pll */ |
| if (rdev->is_atom_bios) { |
| radeon_atom_encoder_init(rdev); |
| radeon_atom_disp_eng_pll_init(rdev); |
| } |
| |
| /* initialize hpd */ |
| radeon_hpd_init(rdev); |
| |
| /* setup afmt */ |
| radeon_afmt_init(rdev); |
| |
| radeon_fbdev_init(rdev); |
| drm_kms_helper_poll_init(rdev->ddev); |
| |
| /* do pm late init */ |
| ret = radeon_pm_late_init(rdev); |
| |
| return 0; |
| } |
| |
| void radeon_modeset_fini(struct radeon_device *rdev) |
| { |
| radeon_fbdev_fini(rdev); |
| kfree(rdev->mode_info.bios_hardcoded_edid); |
| |
| /* free i2c buses */ |
| radeon_i2c_fini(rdev); |
| |
| if (rdev->mode_info.mode_config_initialized) { |
| radeon_afmt_fini(rdev); |
| drm_kms_helper_poll_fini(rdev->ddev); |
| radeon_hpd_fini(rdev); |
| drm_crtc_force_disable_all(rdev->ddev); |
| drm_mode_config_cleanup(rdev->ddev); |
| rdev->mode_info.mode_config_initialized = false; |
| } |
| } |
| |
| static bool is_hdtv_mode(const 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, |
| const 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(connector)) && |
| 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, and |
| * an optional accurate timestamp of when query happened. |
| * |
| * \param dev Device to query. |
| * \param crtc Crtc to query. |
| * \param flags Flags from caller (DRM_CALLED_FROM_VBLIRQ or 0). |
| * For driver internal use only also supports these flags: |
| * |
| * USE_REAL_VBLANKSTART to use the real start of vblank instead |
| * of a fudged earlier start of vblank. |
| * |
| * GET_DISTANCE_TO_VBLANKSTART to return distance to the |
| * fudged earlier start of vblank in *vpos and the distance |
| * to true start of vblank in *hpos. |
| * |
| * \param *vpos Location where vertical scanout position should be stored. |
| * \param *hpos Location where horizontal scanout position should go. |
| * \param *stime Target location for timestamp taken immediately before |
| * scanout position query. Can be NULL to skip timestamp. |
| * \param *etime Target location for timestamp taken immediately after |
| * scanout position query. Can be NULL to skip timestamp. |
| * |
| * 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 successful. |
| * 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, unsigned int pipe, |
| unsigned int flags, int *vpos, int *hpos, |
| ktime_t *stime, ktime_t *etime, |
| const struct drm_display_mode *mode) |
| { |
| 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; |
| |
| /* preempt_disable_rt() should go right here in PREEMPT_RT patchset. */ |
| |
| /* Get optional system timestamp before query. */ |
| if (stime) |
| *stime = ktime_get(); |
| |
| if (ASIC_IS_DCE4(rdev)) { |
| if (pipe == 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 (pipe == 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 (pipe == 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 (pipe == 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 (pipe == 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 (pipe == 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 (pipe == 0) { |
| vbl = RREG32(AVIVO_D1CRTC_V_BLANK_START_END); |
| position = RREG32(AVIVO_D1CRTC_STATUS_POSITION); |
| ret |= DRM_SCANOUTPOS_VALID; |
| } |
| if (pipe == 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 (pipe == 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 (pipe == 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; |
| } |
| } |
| |
| /* Get optional system timestamp after query. */ |
| if (etime) |
| *etime = ktime_get(); |
| |
| /* preempt_enable_rt() should go right here in PREEMPT_RT patchset. */ |
| |
| /* 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 = mode->crtc_vdisplay; |
| vbl_end = 0; |
| } |
| |
| /* Called from driver internal vblank counter query code? */ |
| if (flags & GET_DISTANCE_TO_VBLANKSTART) { |
| /* Caller wants distance from real vbl_start in *hpos */ |
| *hpos = *vpos - vbl_start; |
| } |
| |
| /* Fudge vblank to start a few scanlines earlier to handle the |
| * problem that vblank irqs fire a few scanlines before start |
| * of vblank. Some driver internal callers need the true vblank |
| * start to be used and signal this via the USE_REAL_VBLANKSTART flag. |
| * |
| * The cause of the "early" vblank irq is that the irq is triggered |
| * by the line buffer logic when the line buffer read position enters |
| * the vblank, whereas our crtc scanout position naturally lags the |
| * line buffer read position. |
| */ |
| if (!(flags & USE_REAL_VBLANKSTART)) |
| vbl_start -= rdev->mode_info.crtcs[pipe]->lb_vblank_lead_lines; |
| |
| /* Test scanout position against vblank region. */ |
| if ((*vpos < vbl_start) && (*vpos >= vbl_end)) |
| in_vbl = false; |
| |
| /* In vblank? */ |
| if (in_vbl) |
| ret |= DRM_SCANOUTPOS_IN_VBLANK; |
| |
| /* Called from driver internal vblank counter query code? */ |
| if (flags & GET_DISTANCE_TO_VBLANKSTART) { |
| /* Caller wants distance from fudged earlier vbl_start */ |
| *vpos -= vbl_start; |
| return ret; |
| } |
| |
| /* 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 = mode->crtc_vtotal; |
| *vpos = *vpos - vtotal; |
| } |
| |
| /* Correct for shifted end of vbl at vbl_end. */ |
| *vpos = *vpos - vbl_end; |
| |
| return ret; |
| } |