| /* |
| * 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/drm_crtc_helper.h> |
| #include <drm/radeon_drm.h> |
| #include <drm/drm_fixed.h> |
| #include "radeon.h" |
| #include "atom.h" |
| |
| static void radeon_overscan_setup(struct drm_crtc *crtc, |
| struct drm_display_mode *mode) |
| { |
| struct drm_device *dev = crtc->dev; |
| struct radeon_device *rdev = dev->dev_private; |
| struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); |
| |
| WREG32(RADEON_OVR_CLR + radeon_crtc->crtc_offset, 0); |
| WREG32(RADEON_OVR_WID_LEFT_RIGHT + radeon_crtc->crtc_offset, 0); |
| WREG32(RADEON_OVR_WID_TOP_BOTTOM + radeon_crtc->crtc_offset, 0); |
| } |
| |
| static void radeon_legacy_rmx_mode_set(struct drm_crtc *crtc, |
| struct drm_display_mode *mode) |
| { |
| struct drm_device *dev = crtc->dev; |
| struct radeon_device *rdev = dev->dev_private; |
| struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); |
| int xres = mode->hdisplay; |
| int yres = mode->vdisplay; |
| bool hscale = true, vscale = true; |
| int hsync_wid; |
| int vsync_wid; |
| int hsync_start; |
| int blank_width; |
| u32 scale, inc, crtc_more_cntl; |
| u32 fp_horz_stretch, fp_vert_stretch, fp_horz_vert_active; |
| u32 fp_h_sync_strt_wid, fp_crtc_h_total_disp; |
| u32 fp_v_sync_strt_wid, fp_crtc_v_total_disp; |
| struct drm_display_mode *native_mode = &radeon_crtc->native_mode; |
| |
| fp_vert_stretch = RREG32(RADEON_FP_VERT_STRETCH) & |
| (RADEON_VERT_STRETCH_RESERVED | |
| RADEON_VERT_AUTO_RATIO_INC); |
| fp_horz_stretch = RREG32(RADEON_FP_HORZ_STRETCH) & |
| (RADEON_HORZ_FP_LOOP_STRETCH | |
| RADEON_HORZ_AUTO_RATIO_INC); |
| |
| crtc_more_cntl = 0; |
| if ((rdev->family == CHIP_RS100) || |
| (rdev->family == CHIP_RS200)) { |
| /* This is to workaround the asic bug for RMX, some versions |
| of BIOS dosen't have this register initialized correctly. */ |
| crtc_more_cntl |= RADEON_CRTC_H_CUTOFF_ACTIVE_EN; |
| } |
| |
| |
| fp_crtc_h_total_disp = ((((mode->crtc_htotal / 8) - 1) & 0x3ff) |
| | ((((mode->crtc_hdisplay / 8) - 1) & 0x1ff) << 16)); |
| |
| hsync_wid = (mode->crtc_hsync_end - mode->crtc_hsync_start) / 8; |
| if (!hsync_wid) |
| hsync_wid = 1; |
| hsync_start = mode->crtc_hsync_start - 8; |
| |
| fp_h_sync_strt_wid = ((hsync_start & 0x1fff) |
| | ((hsync_wid & 0x3f) << 16) |
| | ((mode->flags & DRM_MODE_FLAG_NHSYNC) |
| ? RADEON_CRTC_H_SYNC_POL |
| : 0)); |
| |
| fp_crtc_v_total_disp = (((mode->crtc_vtotal - 1) & 0xffff) |
| | ((mode->crtc_vdisplay - 1) << 16)); |
| |
| vsync_wid = mode->crtc_vsync_end - mode->crtc_vsync_start; |
| if (!vsync_wid) |
| vsync_wid = 1; |
| |
| fp_v_sync_strt_wid = (((mode->crtc_vsync_start - 1) & 0xfff) |
| | ((vsync_wid & 0x1f) << 16) |
| | ((mode->flags & DRM_MODE_FLAG_NVSYNC) |
| ? RADEON_CRTC_V_SYNC_POL |
| : 0)); |
| |
| fp_horz_vert_active = 0; |
| |
| if (native_mode->hdisplay == 0 || |
| native_mode->vdisplay == 0) { |
| hscale = false; |
| vscale = false; |
| } else { |
| if (xres > native_mode->hdisplay) |
| xres = native_mode->hdisplay; |
| if (yres > native_mode->vdisplay) |
| yres = native_mode->vdisplay; |
| |
| if (xres == native_mode->hdisplay) |
| hscale = false; |
| if (yres == native_mode->vdisplay) |
| vscale = false; |
| } |
| |
| switch (radeon_crtc->rmx_type) { |
| case RMX_FULL: |
| case RMX_ASPECT: |
| if (!hscale) |
| fp_horz_stretch |= ((xres/8-1) << 16); |
| else { |
| inc = (fp_horz_stretch & RADEON_HORZ_AUTO_RATIO_INC) ? 1 : 0; |
| scale = ((xres + inc) * RADEON_HORZ_STRETCH_RATIO_MAX) |
| / native_mode->hdisplay + 1; |
| fp_horz_stretch |= (((scale) & RADEON_HORZ_STRETCH_RATIO_MASK) | |
| RADEON_HORZ_STRETCH_BLEND | |
| RADEON_HORZ_STRETCH_ENABLE | |
| ((native_mode->hdisplay/8-1) << 16)); |
| } |
| |
| if (!vscale) |
| fp_vert_stretch |= ((yres-1) << 12); |
| else { |
| inc = (fp_vert_stretch & RADEON_VERT_AUTO_RATIO_INC) ? 1 : 0; |
| scale = ((yres + inc) * RADEON_VERT_STRETCH_RATIO_MAX) |
| / native_mode->vdisplay + 1; |
| fp_vert_stretch |= (((scale) & RADEON_VERT_STRETCH_RATIO_MASK) | |
| RADEON_VERT_STRETCH_ENABLE | |
| RADEON_VERT_STRETCH_BLEND | |
| ((native_mode->vdisplay-1) << 12)); |
| } |
| break; |
| case RMX_CENTER: |
| fp_horz_stretch |= ((xres/8-1) << 16); |
| fp_vert_stretch |= ((yres-1) << 12); |
| |
| crtc_more_cntl |= (RADEON_CRTC_AUTO_HORZ_CENTER_EN | |
| RADEON_CRTC_AUTO_VERT_CENTER_EN); |
| |
| blank_width = (mode->crtc_hblank_end - mode->crtc_hblank_start) / 8; |
| if (blank_width > 110) |
| blank_width = 110; |
| |
| fp_crtc_h_total_disp = (((blank_width) & 0x3ff) |
| | ((((mode->crtc_hdisplay / 8) - 1) & 0x1ff) << 16)); |
| |
| hsync_wid = (mode->crtc_hsync_end - mode->crtc_hsync_start) / 8; |
| if (!hsync_wid) |
| hsync_wid = 1; |
| |
| fp_h_sync_strt_wid = ((((mode->crtc_hsync_start - mode->crtc_hblank_start) / 8) & 0x1fff) |
| | ((hsync_wid & 0x3f) << 16) |
| | ((mode->flags & DRM_MODE_FLAG_NHSYNC) |
| ? RADEON_CRTC_H_SYNC_POL |
| : 0)); |
| |
| fp_crtc_v_total_disp = (((mode->crtc_vblank_end - mode->crtc_vblank_start) & 0xffff) |
| | ((mode->crtc_vdisplay - 1) << 16)); |
| |
| vsync_wid = mode->crtc_vsync_end - mode->crtc_vsync_start; |
| if (!vsync_wid) |
| vsync_wid = 1; |
| |
| fp_v_sync_strt_wid = ((((mode->crtc_vsync_start - mode->crtc_vblank_start) & 0xfff) |
| | ((vsync_wid & 0x1f) << 16) |
| | ((mode->flags & DRM_MODE_FLAG_NVSYNC) |
| ? RADEON_CRTC_V_SYNC_POL |
| : 0))); |
| |
| fp_horz_vert_active = (((native_mode->vdisplay) & 0xfff) | |
| (((native_mode->hdisplay / 8) & 0x1ff) << 16)); |
| break; |
| case RMX_OFF: |
| default: |
| fp_horz_stretch |= ((xres/8-1) << 16); |
| fp_vert_stretch |= ((yres-1) << 12); |
| break; |
| } |
| |
| WREG32(RADEON_FP_HORZ_STRETCH, fp_horz_stretch); |
| WREG32(RADEON_FP_VERT_STRETCH, fp_vert_stretch); |
| WREG32(RADEON_CRTC_MORE_CNTL, crtc_more_cntl); |
| WREG32(RADEON_FP_HORZ_VERT_ACTIVE, fp_horz_vert_active); |
| WREG32(RADEON_FP_H_SYNC_STRT_WID, fp_h_sync_strt_wid); |
| WREG32(RADEON_FP_V_SYNC_STRT_WID, fp_v_sync_strt_wid); |
| WREG32(RADEON_FP_CRTC_H_TOTAL_DISP, fp_crtc_h_total_disp); |
| WREG32(RADEON_FP_CRTC_V_TOTAL_DISP, fp_crtc_v_total_disp); |
| } |
| |
| void radeon_restore_common_regs(struct drm_device *dev) |
| { |
| /* don't need this yet */ |
| } |
| |
| static void radeon_pll_wait_for_read_update_complete(struct drm_device *dev) |
| { |
| struct radeon_device *rdev = dev->dev_private; |
| int i = 0; |
| |
| /* FIXME: Certain revisions of R300 can't recover here. Not sure of |
| the cause yet, but this workaround will mask the problem for now. |
| Other chips usually will pass at the very first test, so the |
| workaround shouldn't have any effect on them. */ |
| for (i = 0; |
| (i < 10000 && |
| RREG32_PLL(RADEON_PPLL_REF_DIV) & RADEON_PPLL_ATOMIC_UPDATE_R); |
| i++); |
| } |
| |
| static void radeon_pll_write_update(struct drm_device *dev) |
| { |
| struct radeon_device *rdev = dev->dev_private; |
| |
| while (RREG32_PLL(RADEON_PPLL_REF_DIV) & RADEON_PPLL_ATOMIC_UPDATE_R); |
| |
| WREG32_PLL_P(RADEON_PPLL_REF_DIV, |
| RADEON_PPLL_ATOMIC_UPDATE_W, |
| ~(RADEON_PPLL_ATOMIC_UPDATE_W)); |
| } |
| |
| static void radeon_pll2_wait_for_read_update_complete(struct drm_device *dev) |
| { |
| struct radeon_device *rdev = dev->dev_private; |
| int i = 0; |
| |
| |
| /* FIXME: Certain revisions of R300 can't recover here. Not sure of |
| the cause yet, but this workaround will mask the problem for now. |
| Other chips usually will pass at the very first test, so the |
| workaround shouldn't have any effect on them. */ |
| for (i = 0; |
| (i < 10000 && |
| RREG32_PLL(RADEON_P2PLL_REF_DIV) & RADEON_P2PLL_ATOMIC_UPDATE_R); |
| i++); |
| } |
| |
| static void radeon_pll2_write_update(struct drm_device *dev) |
| { |
| struct radeon_device *rdev = dev->dev_private; |
| |
| while (RREG32_PLL(RADEON_P2PLL_REF_DIV) & RADEON_P2PLL_ATOMIC_UPDATE_R); |
| |
| WREG32_PLL_P(RADEON_P2PLL_REF_DIV, |
| RADEON_P2PLL_ATOMIC_UPDATE_W, |
| ~(RADEON_P2PLL_ATOMIC_UPDATE_W)); |
| } |
| |
| static uint8_t radeon_compute_pll_gain(uint16_t ref_freq, uint16_t ref_div, |
| uint16_t fb_div) |
| { |
| unsigned int vcoFreq; |
| |
| if (!ref_div) |
| return 1; |
| |
| vcoFreq = ((unsigned)ref_freq * fb_div) / ref_div; |
| |
| /* |
| * This is horribly crude: the VCO frequency range is divided into |
| * 3 parts, each part having a fixed PLL gain value. |
| */ |
| if (vcoFreq >= 30000) |
| /* |
| * [300..max] MHz : 7 |
| */ |
| return 7; |
| else if (vcoFreq >= 18000) |
| /* |
| * [180..300) MHz : 4 |
| */ |
| return 4; |
| else |
| /* |
| * [0..180) MHz : 1 |
| */ |
| return 1; |
| } |
| |
| void radeon_crtc_dpms(struct drm_crtc *crtc, int mode) |
| { |
| struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); |
| struct drm_device *dev = crtc->dev; |
| struct radeon_device *rdev = dev->dev_private; |
| uint32_t mask; |
| |
| if (radeon_crtc->crtc_id) |
| mask = (RADEON_CRTC2_DISP_DIS | |
| RADEON_CRTC2_VSYNC_DIS | |
| RADEON_CRTC2_HSYNC_DIS | |
| RADEON_CRTC2_DISP_REQ_EN_B); |
| else |
| mask = (RADEON_CRTC_DISPLAY_DIS | |
| RADEON_CRTC_VSYNC_DIS | |
| RADEON_CRTC_HSYNC_DIS); |
| |
| switch (mode) { |
| case DRM_MODE_DPMS_ON: |
| radeon_crtc->enabled = true; |
| /* adjust pm to dpms changes BEFORE enabling crtcs */ |
| radeon_pm_compute_clocks(rdev); |
| if (radeon_crtc->crtc_id) |
| WREG32_P(RADEON_CRTC2_GEN_CNTL, RADEON_CRTC2_EN, ~(RADEON_CRTC2_EN | mask)); |
| else { |
| WREG32_P(RADEON_CRTC_GEN_CNTL, RADEON_CRTC_EN, ~(RADEON_CRTC_EN | |
| RADEON_CRTC_DISP_REQ_EN_B)); |
| WREG32_P(RADEON_CRTC_EXT_CNTL, 0, ~mask); |
| } |
| drm_vblank_post_modeset(dev, radeon_crtc->crtc_id); |
| radeon_crtc_load_lut(crtc); |
| break; |
| case DRM_MODE_DPMS_STANDBY: |
| case DRM_MODE_DPMS_SUSPEND: |
| case DRM_MODE_DPMS_OFF: |
| drm_vblank_pre_modeset(dev, radeon_crtc->crtc_id); |
| if (radeon_crtc->crtc_id) |
| WREG32_P(RADEON_CRTC2_GEN_CNTL, mask, ~(RADEON_CRTC2_EN | mask)); |
| else { |
| WREG32_P(RADEON_CRTC_GEN_CNTL, RADEON_CRTC_DISP_REQ_EN_B, ~(RADEON_CRTC_EN | |
| RADEON_CRTC_DISP_REQ_EN_B)); |
| WREG32_P(RADEON_CRTC_EXT_CNTL, mask, ~mask); |
| } |
| radeon_crtc->enabled = false; |
| /* adjust pm to dpms changes AFTER disabling crtcs */ |
| radeon_pm_compute_clocks(rdev); |
| break; |
| } |
| } |
| |
| int radeon_crtc_set_base(struct drm_crtc *crtc, int x, int y, |
| struct drm_framebuffer *old_fb) |
| { |
| return radeon_crtc_do_set_base(crtc, old_fb, x, y, 0); |
| } |
| |
| int radeon_crtc_set_base_atomic(struct drm_crtc *crtc, |
| struct drm_framebuffer *fb, |
| int x, int y, enum mode_set_atomic state) |
| { |
| return radeon_crtc_do_set_base(crtc, fb, x, y, 1); |
| } |
| |
| int radeon_crtc_do_set_base(struct drm_crtc *crtc, |
| struct drm_framebuffer *fb, |
| int x, int y, int atomic) |
| { |
| 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 *radeon_fb; |
| struct drm_framebuffer *target_fb; |
| struct drm_gem_object *obj; |
| struct radeon_bo *rbo; |
| uint64_t base; |
| uint32_t crtc_offset, crtc_offset_cntl, crtc_tile_x0_y0 = 0; |
| uint32_t crtc_pitch, pitch_pixels; |
| uint32_t tiling_flags; |
| int format; |
| uint32_t gen_cntl_reg, gen_cntl_val; |
| int r; |
| |
| DRM_DEBUG_KMS("\n"); |
| /* no fb bound */ |
| if (!atomic && !crtc->fb) { |
| DRM_DEBUG_KMS("No FB bound\n"); |
| return 0; |
| } |
| |
| if (atomic) { |
| radeon_fb = to_radeon_framebuffer(fb); |
| target_fb = fb; |
| } |
| else { |
| radeon_fb = to_radeon_framebuffer(crtc->fb); |
| target_fb = crtc->fb; |
| } |
| |
| switch (target_fb->bits_per_pixel) { |
| case 8: |
| format = 2; |
| break; |
| case 15: /* 555 */ |
| format = 3; |
| break; |
| case 16: /* 565 */ |
| format = 4; |
| break; |
| case 24: /* RGB */ |
| format = 5; |
| break; |
| case 32: /* xRGB */ |
| format = 6; |
| break; |
| default: |
| return false; |
| } |
| |
| /* Pin framebuffer & get tilling informations */ |
| obj = radeon_fb->obj; |
| rbo = gem_to_radeon_bo(obj); |
| r = radeon_bo_reserve(rbo, false); |
| if (unlikely(r != 0)) |
| return r; |
| r = radeon_bo_pin(rbo, RADEON_GEM_DOMAIN_VRAM, &base); |
| if (unlikely(r != 0)) { |
| radeon_bo_unreserve(rbo); |
| return -EINVAL; |
| } |
| radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL); |
| radeon_bo_unreserve(rbo); |
| if (tiling_flags & RADEON_TILING_MICRO) |
| DRM_ERROR("trying to scanout microtiled buffer\n"); |
| |
| /* if scanout was in GTT this really wouldn't work */ |
| /* crtc offset is from display base addr not FB location */ |
| radeon_crtc->legacy_display_base_addr = rdev->mc.vram_start; |
| |
| base -= radeon_crtc->legacy_display_base_addr; |
| |
| crtc_offset_cntl = 0; |
| |
| pitch_pixels = target_fb->pitches[0] / (target_fb->bits_per_pixel / 8); |
| crtc_pitch = (((pitch_pixels * target_fb->bits_per_pixel) + |
| ((target_fb->bits_per_pixel * 8) - 1)) / |
| (target_fb->bits_per_pixel * 8)); |
| crtc_pitch |= crtc_pitch << 16; |
| |
| crtc_offset_cntl |= RADEON_CRTC_GUI_TRIG_OFFSET_LEFT_EN; |
| if (tiling_flags & RADEON_TILING_MACRO) { |
| if (ASIC_IS_R300(rdev)) |
| crtc_offset_cntl |= (R300_CRTC_X_Y_MODE_EN | |
| R300_CRTC_MICRO_TILE_BUFFER_DIS | |
| R300_CRTC_MACRO_TILE_EN); |
| else |
| crtc_offset_cntl |= RADEON_CRTC_TILE_EN; |
| } else { |
| if (ASIC_IS_R300(rdev)) |
| crtc_offset_cntl &= ~(R300_CRTC_X_Y_MODE_EN | |
| R300_CRTC_MICRO_TILE_BUFFER_DIS | |
| R300_CRTC_MACRO_TILE_EN); |
| else |
| crtc_offset_cntl &= ~RADEON_CRTC_TILE_EN; |
| } |
| |
| if (tiling_flags & RADEON_TILING_MACRO) { |
| if (ASIC_IS_R300(rdev)) { |
| crtc_tile_x0_y0 = x | (y << 16); |
| base &= ~0x7ff; |
| } else { |
| int byteshift = target_fb->bits_per_pixel >> 4; |
| int tile_addr = (((y >> 3) * pitch_pixels + x) >> (8 - byteshift)) << 11; |
| base += tile_addr + ((x << byteshift) % 256) + ((y % 8) << 8); |
| crtc_offset_cntl |= (y % 16); |
| } |
| } else { |
| int offset = y * pitch_pixels + x; |
| switch (target_fb->bits_per_pixel) { |
| case 8: |
| offset *= 1; |
| break; |
| case 15: |
| case 16: |
| offset *= 2; |
| break; |
| case 24: |
| offset *= 3; |
| break; |
| case 32: |
| offset *= 4; |
| break; |
| default: |
| return false; |
| } |
| base += offset; |
| } |
| |
| base &= ~7; |
| |
| if (radeon_crtc->crtc_id == 1) |
| gen_cntl_reg = RADEON_CRTC2_GEN_CNTL; |
| else |
| gen_cntl_reg = RADEON_CRTC_GEN_CNTL; |
| |
| gen_cntl_val = RREG32(gen_cntl_reg); |
| gen_cntl_val &= ~(0xf << 8); |
| gen_cntl_val |= (format << 8); |
| gen_cntl_val &= ~RADEON_CRTC_VSTAT_MODE_MASK; |
| WREG32(gen_cntl_reg, gen_cntl_val); |
| |
| crtc_offset = (u32)base; |
| |
| WREG32(RADEON_DISPLAY_BASE_ADDR + radeon_crtc->crtc_offset, radeon_crtc->legacy_display_base_addr); |
| |
| if (ASIC_IS_R300(rdev)) { |
| if (radeon_crtc->crtc_id) |
| WREG32(R300_CRTC2_TILE_X0_Y0, crtc_tile_x0_y0); |
| else |
| WREG32(R300_CRTC_TILE_X0_Y0, crtc_tile_x0_y0); |
| } |
| WREG32(RADEON_CRTC_OFFSET_CNTL + radeon_crtc->crtc_offset, crtc_offset_cntl); |
| WREG32(RADEON_CRTC_OFFSET + radeon_crtc->crtc_offset, crtc_offset); |
| WREG32(RADEON_CRTC_PITCH + radeon_crtc->crtc_offset, crtc_pitch); |
| |
| if (!atomic && fb && fb != crtc->fb) { |
| radeon_fb = to_radeon_framebuffer(fb); |
| rbo = gem_to_radeon_bo(radeon_fb->obj); |
| r = radeon_bo_reserve(rbo, false); |
| if (unlikely(r != 0)) |
| return r; |
| radeon_bo_unpin(rbo); |
| radeon_bo_unreserve(rbo); |
| } |
| |
| /* Bytes per pixel may have changed */ |
| radeon_bandwidth_update(rdev); |
| |
| return 0; |
| } |
| |
| static bool radeon_set_crtc_timing(struct drm_crtc *crtc, struct drm_display_mode *mode) |
| { |
| struct drm_device *dev = crtc->dev; |
| struct radeon_device *rdev = dev->dev_private; |
| struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); |
| struct drm_encoder *encoder; |
| int format; |
| int hsync_start; |
| int hsync_wid; |
| int vsync_wid; |
| uint32_t crtc_h_total_disp; |
| uint32_t crtc_h_sync_strt_wid; |
| uint32_t crtc_v_total_disp; |
| uint32_t crtc_v_sync_strt_wid; |
| bool is_tv = false; |
| |
| DRM_DEBUG_KMS("\n"); |
| list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
| if (encoder->crtc == crtc) { |
| struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); |
| if (radeon_encoder->active_device & ATOM_DEVICE_TV_SUPPORT) { |
| is_tv = true; |
| DRM_INFO("crtc %d is connected to a TV\n", radeon_crtc->crtc_id); |
| break; |
| } |
| } |
| } |
| |
| switch (crtc->fb->bits_per_pixel) { |
| case 8: |
| format = 2; |
| break; |
| case 15: /* 555 */ |
| format = 3; |
| break; |
| case 16: /* 565 */ |
| format = 4; |
| break; |
| case 24: /* RGB */ |
| format = 5; |
| break; |
| case 32: /* xRGB */ |
| format = 6; |
| break; |
| default: |
| return false; |
| } |
| |
| crtc_h_total_disp = ((((mode->crtc_htotal / 8) - 1) & 0x3ff) |
| | ((((mode->crtc_hdisplay / 8) - 1) & 0x1ff) << 16)); |
| |
| hsync_wid = (mode->crtc_hsync_end - mode->crtc_hsync_start) / 8; |
| if (!hsync_wid) |
| hsync_wid = 1; |
| hsync_start = mode->crtc_hsync_start - 8; |
| |
| crtc_h_sync_strt_wid = ((hsync_start & 0x1fff) |
| | ((hsync_wid & 0x3f) << 16) |
| | ((mode->flags & DRM_MODE_FLAG_NHSYNC) |
| ? RADEON_CRTC_H_SYNC_POL |
| : 0)); |
| |
| /* This works for double scan mode. */ |
| crtc_v_total_disp = (((mode->crtc_vtotal - 1) & 0xffff) |
| | ((mode->crtc_vdisplay - 1) << 16)); |
| |
| vsync_wid = mode->crtc_vsync_end - mode->crtc_vsync_start; |
| if (!vsync_wid) |
| vsync_wid = 1; |
| |
| crtc_v_sync_strt_wid = (((mode->crtc_vsync_start - 1) & 0xfff) |
| | ((vsync_wid & 0x1f) << 16) |
| | ((mode->flags & DRM_MODE_FLAG_NVSYNC) |
| ? RADEON_CRTC_V_SYNC_POL |
| : 0)); |
| |
| if (radeon_crtc->crtc_id) { |
| uint32_t crtc2_gen_cntl; |
| uint32_t disp2_merge_cntl; |
| |
| /* if TV DAC is enabled for another crtc and keep it enabled */ |
| crtc2_gen_cntl = RREG32(RADEON_CRTC2_GEN_CNTL) & 0x00718080; |
| crtc2_gen_cntl |= ((format << 8) |
| | RADEON_CRTC2_VSYNC_DIS |
| | RADEON_CRTC2_HSYNC_DIS |
| | RADEON_CRTC2_DISP_DIS |
| | RADEON_CRTC2_DISP_REQ_EN_B |
| | ((mode->flags & DRM_MODE_FLAG_DBLSCAN) |
| ? RADEON_CRTC2_DBL_SCAN_EN |
| : 0) |
| | ((mode->flags & DRM_MODE_FLAG_CSYNC) |
| ? RADEON_CRTC2_CSYNC_EN |
| : 0) |
| | ((mode->flags & DRM_MODE_FLAG_INTERLACE) |
| ? RADEON_CRTC2_INTERLACE_EN |
| : 0)); |
| |
| /* rs4xx chips seem to like to have the crtc enabled when the timing is set */ |
| if ((rdev->family == CHIP_RS400) || (rdev->family == CHIP_RS480)) |
| crtc2_gen_cntl |= RADEON_CRTC2_EN; |
| |
| disp2_merge_cntl = RREG32(RADEON_DISP2_MERGE_CNTL); |
| disp2_merge_cntl &= ~RADEON_DISP2_RGB_OFFSET_EN; |
| |
| WREG32(RADEON_DISP2_MERGE_CNTL, disp2_merge_cntl); |
| WREG32(RADEON_CRTC2_GEN_CNTL, crtc2_gen_cntl); |
| |
| WREG32(RADEON_FP_H2_SYNC_STRT_WID, crtc_h_sync_strt_wid); |
| WREG32(RADEON_FP_V2_SYNC_STRT_WID, crtc_v_sync_strt_wid); |
| } else { |
| uint32_t crtc_gen_cntl; |
| uint32_t crtc_ext_cntl; |
| uint32_t disp_merge_cntl; |
| |
| crtc_gen_cntl = RREG32(RADEON_CRTC_GEN_CNTL) & 0x00718000; |
| crtc_gen_cntl |= (RADEON_CRTC_EXT_DISP_EN |
| | (format << 8) |
| | RADEON_CRTC_DISP_REQ_EN_B |
| | ((mode->flags & DRM_MODE_FLAG_DBLSCAN) |
| ? RADEON_CRTC_DBL_SCAN_EN |
| : 0) |
| | ((mode->flags & DRM_MODE_FLAG_CSYNC) |
| ? RADEON_CRTC_CSYNC_EN |
| : 0) |
| | ((mode->flags & DRM_MODE_FLAG_INTERLACE) |
| ? RADEON_CRTC_INTERLACE_EN |
| : 0)); |
| |
| /* rs4xx chips seem to like to have the crtc enabled when the timing is set */ |
| if ((rdev->family == CHIP_RS400) || (rdev->family == CHIP_RS480)) |
| crtc_gen_cntl |= RADEON_CRTC_EN; |
| |
| crtc_ext_cntl = RREG32(RADEON_CRTC_EXT_CNTL); |
| crtc_ext_cntl |= (RADEON_XCRT_CNT_EN | |
| RADEON_CRTC_VSYNC_DIS | |
| RADEON_CRTC_HSYNC_DIS | |
| RADEON_CRTC_DISPLAY_DIS); |
| |
| disp_merge_cntl = RREG32(RADEON_DISP_MERGE_CNTL); |
| disp_merge_cntl &= ~RADEON_DISP_RGB_OFFSET_EN; |
| |
| WREG32(RADEON_DISP_MERGE_CNTL, disp_merge_cntl); |
| WREG32(RADEON_CRTC_GEN_CNTL, crtc_gen_cntl); |
| WREG32(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl); |
| } |
| |
| if (is_tv) |
| radeon_legacy_tv_adjust_crtc_reg(encoder, &crtc_h_total_disp, |
| &crtc_h_sync_strt_wid, &crtc_v_total_disp, |
| &crtc_v_sync_strt_wid); |
| |
| WREG32(RADEON_CRTC_H_TOTAL_DISP + radeon_crtc->crtc_offset, crtc_h_total_disp); |
| WREG32(RADEON_CRTC_H_SYNC_STRT_WID + radeon_crtc->crtc_offset, crtc_h_sync_strt_wid); |
| WREG32(RADEON_CRTC_V_TOTAL_DISP + radeon_crtc->crtc_offset, crtc_v_total_disp); |
| WREG32(RADEON_CRTC_V_SYNC_STRT_WID + radeon_crtc->crtc_offset, crtc_v_sync_strt_wid); |
| |
| return true; |
| } |
| |
| static void radeon_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode) |
| { |
| struct drm_device *dev = crtc->dev; |
| struct radeon_device *rdev = dev->dev_private; |
| struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); |
| struct drm_encoder *encoder; |
| uint32_t feedback_div = 0; |
| uint32_t frac_fb_div = 0; |
| uint32_t reference_div = 0; |
| uint32_t post_divider = 0; |
| uint32_t freq = 0; |
| uint8_t pll_gain; |
| bool use_bios_divs = false; |
| /* PLL registers */ |
| uint32_t pll_ref_div = 0; |
| uint32_t pll_fb_post_div = 0; |
| uint32_t htotal_cntl = 0; |
| bool is_tv = false; |
| struct radeon_pll *pll; |
| |
| struct { |
| int divider; |
| int bitvalue; |
| } *post_div, post_divs[] = { |
| /* From RAGE 128 VR/RAGE 128 GL Register |
| * Reference Manual (Technical Reference |
| * Manual P/N RRG-G04100-C Rev. 0.04), page |
| * 3-17 (PLL_DIV_[3:0]). |
| */ |
| { 1, 0 }, /* VCLK_SRC */ |
| { 2, 1 }, /* VCLK_SRC/2 */ |
| { 4, 2 }, /* VCLK_SRC/4 */ |
| { 8, 3 }, /* VCLK_SRC/8 */ |
| { 3, 4 }, /* VCLK_SRC/3 */ |
| { 16, 5 }, /* VCLK_SRC/16 */ |
| { 6, 6 }, /* VCLK_SRC/6 */ |
| { 12, 7 }, /* VCLK_SRC/12 */ |
| { 0, 0 } |
| }; |
| |
| if (radeon_crtc->crtc_id) |
| pll = &rdev->clock.p2pll; |
| else |
| pll = &rdev->clock.p1pll; |
| |
| pll->flags = RADEON_PLL_LEGACY; |
| |
| if (mode->clock > 200000) /* range limits??? */ |
| pll->flags |= RADEON_PLL_PREFER_HIGH_FB_DIV; |
| else |
| pll->flags |= RADEON_PLL_PREFER_LOW_REF_DIV; |
| |
| list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
| if (encoder->crtc == crtc) { |
| struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); |
| |
| if (radeon_encoder->active_device & ATOM_DEVICE_TV_SUPPORT) { |
| is_tv = true; |
| break; |
| } |
| |
| if (encoder->encoder_type != DRM_MODE_ENCODER_DAC) |
| pll->flags |= RADEON_PLL_NO_ODD_POST_DIV; |
| if (encoder->encoder_type == DRM_MODE_ENCODER_LVDS) { |
| if (!rdev->is_atom_bios) { |
| struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); |
| struct radeon_encoder_lvds *lvds = (struct radeon_encoder_lvds *)radeon_encoder->enc_priv; |
| if (lvds) { |
| if (lvds->use_bios_dividers) { |
| pll_ref_div = lvds->panel_ref_divider; |
| pll_fb_post_div = (lvds->panel_fb_divider | |
| (lvds->panel_post_divider << 16)); |
| htotal_cntl = 0; |
| use_bios_divs = true; |
| } |
| } |
| } |
| pll->flags |= RADEON_PLL_USE_REF_DIV; |
| } |
| } |
| } |
| |
| DRM_DEBUG_KMS("\n"); |
| |
| if (!use_bios_divs) { |
| radeon_compute_pll_legacy(pll, mode->clock, |
| &freq, &feedback_div, &frac_fb_div, |
| &reference_div, &post_divider); |
| |
| for (post_div = &post_divs[0]; post_div->divider; ++post_div) { |
| if (post_div->divider == post_divider) |
| break; |
| } |
| |
| if (!post_div->divider) |
| post_div = &post_divs[0]; |
| |
| DRM_DEBUG_KMS("dc=%u, fd=%d, rd=%d, pd=%d\n", |
| (unsigned)freq, |
| feedback_div, |
| reference_div, |
| post_divider); |
| |
| pll_ref_div = reference_div; |
| #if defined(__powerpc__) && (0) /* TODO */ |
| /* apparently programming this otherwise causes a hang??? */ |
| if (info->MacModel == RADEON_MAC_IBOOK) |
| pll_fb_post_div = 0x000600ad; |
| else |
| #endif |
| pll_fb_post_div = (feedback_div | (post_div->bitvalue << 16)); |
| |
| htotal_cntl = mode->htotal & 0x7; |
| |
| } |
| |
| pll_gain = radeon_compute_pll_gain(pll->reference_freq, |
| pll_ref_div & 0x3ff, |
| pll_fb_post_div & 0x7ff); |
| |
| if (radeon_crtc->crtc_id) { |
| uint32_t pixclks_cntl = ((RREG32_PLL(RADEON_PIXCLKS_CNTL) & |
| ~(RADEON_PIX2CLK_SRC_SEL_MASK)) | |
| RADEON_PIX2CLK_SRC_SEL_P2PLLCLK); |
| |
| if (is_tv) { |
| radeon_legacy_tv_adjust_pll2(encoder, &htotal_cntl, |
| &pll_ref_div, &pll_fb_post_div, |
| &pixclks_cntl); |
| } |
| |
| WREG32_PLL_P(RADEON_PIXCLKS_CNTL, |
| RADEON_PIX2CLK_SRC_SEL_CPUCLK, |
| ~(RADEON_PIX2CLK_SRC_SEL_MASK)); |
| |
| WREG32_PLL_P(RADEON_P2PLL_CNTL, |
| RADEON_P2PLL_RESET |
| | RADEON_P2PLL_ATOMIC_UPDATE_EN |
| | ((uint32_t)pll_gain << RADEON_P2PLL_PVG_SHIFT), |
| ~(RADEON_P2PLL_RESET |
| | RADEON_P2PLL_ATOMIC_UPDATE_EN |
| | RADEON_P2PLL_PVG_MASK)); |
| |
| WREG32_PLL_P(RADEON_P2PLL_REF_DIV, |
| pll_ref_div, |
| ~RADEON_P2PLL_REF_DIV_MASK); |
| |
| WREG32_PLL_P(RADEON_P2PLL_DIV_0, |
| pll_fb_post_div, |
| ~RADEON_P2PLL_FB0_DIV_MASK); |
| |
| WREG32_PLL_P(RADEON_P2PLL_DIV_0, |
| pll_fb_post_div, |
| ~RADEON_P2PLL_POST0_DIV_MASK); |
| |
| radeon_pll2_write_update(dev); |
| radeon_pll2_wait_for_read_update_complete(dev); |
| |
| WREG32_PLL(RADEON_HTOTAL2_CNTL, htotal_cntl); |
| |
| WREG32_PLL_P(RADEON_P2PLL_CNTL, |
| 0, |
| ~(RADEON_P2PLL_RESET |
| | RADEON_P2PLL_SLEEP |
| | RADEON_P2PLL_ATOMIC_UPDATE_EN)); |
| |
| DRM_DEBUG_KMS("Wrote2: 0x%08x 0x%08x 0x%08x (0x%08x)\n", |
| (unsigned)pll_ref_div, |
| (unsigned)pll_fb_post_div, |
| (unsigned)htotal_cntl, |
| RREG32_PLL(RADEON_P2PLL_CNTL)); |
| DRM_DEBUG_KMS("Wrote2: rd=%u, fd=%u, pd=%u\n", |
| (unsigned)pll_ref_div & RADEON_P2PLL_REF_DIV_MASK, |
| (unsigned)pll_fb_post_div & RADEON_P2PLL_FB0_DIV_MASK, |
| (unsigned)((pll_fb_post_div & |
| RADEON_P2PLL_POST0_DIV_MASK) >> 16)); |
| |
| mdelay(50); /* Let the clock to lock */ |
| |
| WREG32_PLL_P(RADEON_PIXCLKS_CNTL, |
| RADEON_PIX2CLK_SRC_SEL_P2PLLCLK, |
| ~(RADEON_PIX2CLK_SRC_SEL_MASK)); |
| |
| WREG32_PLL(RADEON_PIXCLKS_CNTL, pixclks_cntl); |
| } else { |
| uint32_t pixclks_cntl; |
| |
| |
| if (is_tv) { |
| pixclks_cntl = RREG32_PLL(RADEON_PIXCLKS_CNTL); |
| radeon_legacy_tv_adjust_pll1(encoder, &htotal_cntl, &pll_ref_div, |
| &pll_fb_post_div, &pixclks_cntl); |
| } |
| |
| if (rdev->flags & RADEON_IS_MOBILITY) { |
| /* A temporal workaround for the occasional blanking on certain laptop panels. |
| This appears to related to the PLL divider registers (fail to lock?). |
| It occurs even when all dividers are the same with their old settings. |
| In this case we really don't need to fiddle with PLL registers. |
| By doing this we can avoid the blanking problem with some panels. |
| */ |
| if ((pll_ref_div == (RREG32_PLL(RADEON_PPLL_REF_DIV) & RADEON_PPLL_REF_DIV_MASK)) && |
| (pll_fb_post_div == (RREG32_PLL(RADEON_PPLL_DIV_3) & |
| (RADEON_PPLL_POST3_DIV_MASK | RADEON_PPLL_FB3_DIV_MASK)))) { |
| WREG32_P(RADEON_CLOCK_CNTL_INDEX, |
| RADEON_PLL_DIV_SEL, |
| ~(RADEON_PLL_DIV_SEL)); |
| r100_pll_errata_after_index(rdev); |
| return; |
| } |
| } |
| |
| WREG32_PLL_P(RADEON_VCLK_ECP_CNTL, |
| RADEON_VCLK_SRC_SEL_CPUCLK, |
| ~(RADEON_VCLK_SRC_SEL_MASK)); |
| WREG32_PLL_P(RADEON_PPLL_CNTL, |
| RADEON_PPLL_RESET |
| | RADEON_PPLL_ATOMIC_UPDATE_EN |
| | RADEON_PPLL_VGA_ATOMIC_UPDATE_EN |
| | ((uint32_t)pll_gain << RADEON_PPLL_PVG_SHIFT), |
| ~(RADEON_PPLL_RESET |
| | RADEON_PPLL_ATOMIC_UPDATE_EN |
| | RADEON_PPLL_VGA_ATOMIC_UPDATE_EN |
| | RADEON_PPLL_PVG_MASK)); |
| |
| WREG32_P(RADEON_CLOCK_CNTL_INDEX, |
| RADEON_PLL_DIV_SEL, |
| ~(RADEON_PLL_DIV_SEL)); |
| r100_pll_errata_after_index(rdev); |
| |
| if (ASIC_IS_R300(rdev) || |
| (rdev->family == CHIP_RS300) || |
| (rdev->family == CHIP_RS400) || |
| (rdev->family == CHIP_RS480)) { |
| if (pll_ref_div & R300_PPLL_REF_DIV_ACC_MASK) { |
| /* When restoring console mode, use saved PPLL_REF_DIV |
| * setting. |
| */ |
| WREG32_PLL_P(RADEON_PPLL_REF_DIV, |
| pll_ref_div, |
| 0); |
| } else { |
| /* R300 uses ref_div_acc field as real ref divider */ |
| WREG32_PLL_P(RADEON_PPLL_REF_DIV, |
| (pll_ref_div << R300_PPLL_REF_DIV_ACC_SHIFT), |
| ~R300_PPLL_REF_DIV_ACC_MASK); |
| } |
| } else |
| WREG32_PLL_P(RADEON_PPLL_REF_DIV, |
| pll_ref_div, |
| ~RADEON_PPLL_REF_DIV_MASK); |
| |
| WREG32_PLL_P(RADEON_PPLL_DIV_3, |
| pll_fb_post_div, |
| ~RADEON_PPLL_FB3_DIV_MASK); |
| |
| WREG32_PLL_P(RADEON_PPLL_DIV_3, |
| pll_fb_post_div, |
| ~RADEON_PPLL_POST3_DIV_MASK); |
| |
| radeon_pll_write_update(dev); |
| radeon_pll_wait_for_read_update_complete(dev); |
| |
| WREG32_PLL(RADEON_HTOTAL_CNTL, htotal_cntl); |
| |
| WREG32_PLL_P(RADEON_PPLL_CNTL, |
| 0, |
| ~(RADEON_PPLL_RESET |
| | RADEON_PPLL_SLEEP |
| | RADEON_PPLL_ATOMIC_UPDATE_EN |
| | RADEON_PPLL_VGA_ATOMIC_UPDATE_EN)); |
| |
| DRM_DEBUG_KMS("Wrote: 0x%08x 0x%08x 0x%08x (0x%08x)\n", |
| pll_ref_div, |
| pll_fb_post_div, |
| (unsigned)htotal_cntl, |
| RREG32_PLL(RADEON_PPLL_CNTL)); |
| DRM_DEBUG_KMS("Wrote: rd=%d, fd=%d, pd=%d\n", |
| pll_ref_div & RADEON_PPLL_REF_DIV_MASK, |
| pll_fb_post_div & RADEON_PPLL_FB3_DIV_MASK, |
| (pll_fb_post_div & RADEON_PPLL_POST3_DIV_MASK) >> 16); |
| |
| mdelay(50); /* Let the clock to lock */ |
| |
| WREG32_PLL_P(RADEON_VCLK_ECP_CNTL, |
| RADEON_VCLK_SRC_SEL_PPLLCLK, |
| ~(RADEON_VCLK_SRC_SEL_MASK)); |
| |
| if (is_tv) |
| WREG32_PLL(RADEON_PIXCLKS_CNTL, pixclks_cntl); |
| } |
| } |
| |
| static bool radeon_crtc_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; |
| |
| /* adjust pm to upcoming mode change */ |
| radeon_pm_compute_clocks(rdev); |
| |
| if (!radeon_crtc_scaling_mode_fixup(crtc, mode, adjusted_mode)) |
| return false; |
| return true; |
| } |
| |
| static int radeon_crtc_mode_set(struct drm_crtc *crtc, |
| struct drm_display_mode *mode, |
| struct drm_display_mode *adjusted_mode, |
| int x, int y, struct drm_framebuffer *old_fb) |
| { |
| struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); |
| |
| /* TODO TV */ |
| radeon_crtc_set_base(crtc, x, y, old_fb); |
| radeon_set_crtc_timing(crtc, adjusted_mode); |
| radeon_set_pll(crtc, adjusted_mode); |
| radeon_overscan_setup(crtc, adjusted_mode); |
| if (radeon_crtc->crtc_id == 0) { |
| radeon_legacy_rmx_mode_set(crtc, adjusted_mode); |
| } else { |
| if (radeon_crtc->rmx_type != RMX_OFF) { |
| /* FIXME: only first crtc has rmx what should we |
| * do ? |
| */ |
| DRM_ERROR("Mode need scaling but only first crtc can do that.\n"); |
| } |
| } |
| return 0; |
| } |
| |
| static void radeon_crtc_prepare(struct drm_crtc *crtc) |
| { |
| struct drm_device *dev = crtc->dev; |
| struct drm_crtc *crtci; |
| |
| /* |
| * The hardware wedges sometimes if you reconfigure one CRTC |
| * whilst another is running (see fdo bug #24611). |
| */ |
| list_for_each_entry(crtci, &dev->mode_config.crtc_list, head) |
| radeon_crtc_dpms(crtci, DRM_MODE_DPMS_OFF); |
| } |
| |
| static void radeon_crtc_commit(struct drm_crtc *crtc) |
| { |
| struct drm_device *dev = crtc->dev; |
| struct drm_crtc *crtci; |
| |
| /* |
| * Reenable the CRTCs that should be running. |
| */ |
| list_for_each_entry(crtci, &dev->mode_config.crtc_list, head) { |
| if (crtci->enabled) |
| radeon_crtc_dpms(crtci, DRM_MODE_DPMS_ON); |
| } |
| } |
| |
| static const struct drm_crtc_helper_funcs legacy_helper_funcs = { |
| .dpms = radeon_crtc_dpms, |
| .mode_fixup = radeon_crtc_mode_fixup, |
| .mode_set = radeon_crtc_mode_set, |
| .mode_set_base = radeon_crtc_set_base, |
| .mode_set_base_atomic = radeon_crtc_set_base_atomic, |
| .prepare = radeon_crtc_prepare, |
| .commit = radeon_crtc_commit, |
| .load_lut = radeon_crtc_load_lut, |
| }; |
| |
| |
| void radeon_legacy_init_crtc(struct drm_device *dev, |
| struct radeon_crtc *radeon_crtc) |
| { |
| if (radeon_crtc->crtc_id == 1) |
| radeon_crtc->crtc_offset = RADEON_CRTC2_H_TOTAL_DISP - RADEON_CRTC_H_TOTAL_DISP; |
| drm_crtc_helper_add(&radeon_crtc->base, &legacy_helper_funcs); |
| } |