diff options
Diffstat (limited to 'linux-core/nv50_crtc.c')
| -rw-r--r-- | linux-core/nv50_crtc.c | 533 |
1 files changed, 0 insertions, 533 deletions
diff --git a/linux-core/nv50_crtc.c b/linux-core/nv50_crtc.c deleted file mode 100644 index f56aa339..00000000 --- a/linux-core/nv50_crtc.c +++ /dev/null @@ -1,533 +0,0 @@ -/* - * Copyright (C) 2008 Maarten Maathuis. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining - * a copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sublicense, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial - * portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. - * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS 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. - * - */ - -#include "nv50_crtc.h" -#include "nv50_cursor.h" -#include "nv50_lut.h" -#include "nv50_fb.h" - -static int nv50_crtc_validate_mode(struct nv50_crtc *crtc, struct nouveau_hw_mode *mode) -{ - NV50_DEBUG("\n"); - - if (mode->clock > 400000) - return MODE_CLOCK_HIGH; - - if (mode->clock < 25000) - return MODE_CLOCK_LOW; - - return MODE_OK; -} - -static int nv50_crtc_set_mode(struct nv50_crtc *crtc, struct nouveau_hw_mode *mode) -{ - struct nouveau_hw_mode *hw_mode = crtc->mode; - uint8_t rval; - - NV50_DEBUG("index %d\n", crtc->index); - - if (!mode) { - DRM_ERROR("No mode\n"); - return MODE_NOMODE; - } - - if ((rval = crtc->validate_mode(crtc, mode))) { - DRM_ERROR("Mode invalid\n"); - return rval; - } - - /* copy values to mode */ - *hw_mode = *mode; - - return 0; -} - -static int nv50_crtc_execute_mode(struct nv50_crtc *crtc) -{ - struct drm_nouveau_private *dev_priv = crtc->dev->dev_private; - struct nouveau_hw_mode *hw_mode; - uint32_t hsync_dur, vsync_dur, hsync_start_to_end, vsync_start_to_end; - uint32_t hunk1, vunk1, vunk2a, vunk2b; - uint32_t offset = crtc->index * 0x400; - - NV50_DEBUG("index %d\n", crtc->index); - NV50_DEBUG("%s native mode\n", crtc->use_native_mode ? "using" : "not using"); - - if (crtc->use_native_mode) - hw_mode = crtc->native_mode; - else - hw_mode = crtc->mode; - - hsync_dur = hw_mode->hsync_end - hw_mode->hsync_start; - vsync_dur = hw_mode->vsync_end - hw_mode->vsync_start; - hsync_start_to_end = hw_mode->hblank_end - hw_mode->hsync_start; - vsync_start_to_end = hw_mode->vblank_end - hw_mode->vsync_start; - /* I can't give this a proper name, anyone else can? */ - hunk1 = hw_mode->htotal - hw_mode->hsync_start + hw_mode->hblank_start; - vunk1 = hw_mode->vtotal - hw_mode->vsync_start + hw_mode->vblank_start; - /* Another strange value, this time only for interlaced modes. */ - vunk2a = 2*hw_mode->vtotal - hw_mode->vsync_start + hw_mode->vblank_start; - vunk2b = hw_mode->vtotal - hw_mode->vsync_start + hw_mode->vblank_end; - - if (hw_mode->flags & DRM_MODE_FLAG_INTERLACE) { - vsync_dur /= 2; - vsync_start_to_end /= 2; - vunk1 /= 2; - vunk2a /= 2; - vunk2b /= 2; - /* magic */ - if (hw_mode->flags & DRM_MODE_FLAG_DBLSCAN) { - vsync_start_to_end -= 1; - vunk1 -= 1; - vunk2a -= 1; - vunk2b -= 1; - } - } - - OUT_MODE(NV50_CRTC0_CLOCK + offset, hw_mode->clock | 0x800000); - OUT_MODE(NV50_CRTC0_INTERLACE + offset, (hw_mode->flags & DRM_MODE_FLAG_INTERLACE) ? 2 : 0); - OUT_MODE(NV50_CRTC0_DISPLAY_START + offset, 0); - OUT_MODE(NV50_CRTC0_UNK82C + offset, 0); - OUT_MODE(NV50_CRTC0_DISPLAY_TOTAL + offset, hw_mode->vtotal << 16 | hw_mode->htotal); - OUT_MODE(NV50_CRTC0_SYNC_DURATION + offset, (vsync_dur - 1) << 16 | (hsync_dur - 1)); - OUT_MODE(NV50_CRTC0_SYNC_START_TO_BLANK_END + offset, (vsync_start_to_end - 1) << 16 | (hsync_start_to_end - 1)); - OUT_MODE(NV50_CRTC0_MODE_UNK1 + offset, (vunk1 - 1) << 16 | (hunk1 - 1)); - if (hw_mode->flags & DRM_MODE_FLAG_INTERLACE) { - OUT_MODE(NV50_CRTC0_MODE_UNK2 + offset, (vunk2b - 1) << 16 | (vunk2a - 1)); - } - - crtc->set_fb(crtc); - crtc->set_dither(crtc); - - /* This is the actual resolution of the mode. */ - OUT_MODE(NV50_CRTC0_REAL_RES + offset, (crtc->mode->vdisplay << 16) | crtc->mode->hdisplay); - OUT_MODE(NV50_CRTC0_SCALE_CENTER_OFFSET + offset, NV50_CRTC_SCALE_CENTER_OFFSET_VAL(0,0)); - - /* Maybe move this as well? */ - crtc->blank(crtc, false); - - return 0; -} - -static int nv50_crtc_set_fb(struct nv50_crtc *crtc) -{ - struct drm_nouveau_private *dev_priv = crtc->dev->dev_private; - uint32_t offset = crtc->index * 0x400; - - NV50_DEBUG("\n"); - - OUT_MODE(NV50_CRTC0_FB_SIZE + offset, crtc->fb->height << 16 | crtc->fb->width); - - /* I suspect this flag indicates a linear fb. */ - OUT_MODE(NV50_CRTC0_FB_PITCH + offset, crtc->fb->pitch | 0x100000); - - switch (crtc->fb->depth) { - case 8: - OUT_MODE(NV50_CRTC0_DEPTH + offset, NV50_CRTC0_DEPTH_8BPP); - break; - case 15: - OUT_MODE(NV50_CRTC0_DEPTH + offset, NV50_CRTC0_DEPTH_15BPP); - break; - case 16: - OUT_MODE(NV50_CRTC0_DEPTH + offset, NV50_CRTC0_DEPTH_16BPP); - break; - case 24: - OUT_MODE(NV50_CRTC0_DEPTH + offset, NV50_CRTC0_DEPTH_24BPP); - break; - } - - OUT_MODE(NV50_CRTC0_COLOR_CTRL + offset, NV50_CRTC_COLOR_CTRL_MODE_COLOR); - OUT_MODE(NV50_CRTC0_FB_POS + offset, (crtc->fb->y << 16) | (crtc->fb->x)); - - return 0; -} - -static int nv50_crtc_blank(struct nv50_crtc *crtc, bool blanked) -{ - struct drm_nouveau_private *dev_priv = crtc->dev->dev_private; - uint32_t offset = crtc->index * 0x400; - - NV50_DEBUG("index %d\n", crtc->index); - NV50_DEBUG("%s\n", blanked ? "blanked" : "unblanked"); - - /* We really need a framebuffer. */ - if (!crtc->fb->block && !blanked) { - DRM_ERROR("No framebuffer available on crtc %d\n", crtc->index); - return -EINVAL; - } - - if (blanked) { - crtc->cursor->hide(crtc); - - OUT_MODE(NV50_CRTC0_CLUT_MODE + offset, NV50_CRTC0_CLUT_MODE_BLANK); - OUT_MODE(NV50_CRTC0_CLUT_OFFSET + offset, 0); - if (dev_priv->chipset != 0x50) - OUT_MODE(NV84_CRTC0_BLANK_UNK1 + offset, NV84_CRTC0_BLANK_UNK1_BLANK); - OUT_MODE(NV50_CRTC0_BLANK_CTRL + offset, NV50_CRTC0_BLANK_CTRL_BLANK); - if (dev_priv->chipset != 0x50) - OUT_MODE(NV84_CRTC0_BLANK_UNK2 + offset, NV84_CRTC0_BLANK_UNK2_BLANK); - } else { - OUT_MODE(NV50_CRTC0_FB_OFFSET + offset, crtc->fb->block->start >> 8); - OUT_MODE(0x864 + offset, 0); - - crtc->cursor->set_offset(crtc); - - if (dev_priv->chipset != 0x50) - OUT_MODE(NV84_CRTC0_BLANK_UNK2 + offset, NV84_CRTC0_BLANK_UNK2_UNBLANK); - - if (crtc->cursor->visible) - crtc->cursor->show(crtc); - else - crtc->cursor->hide(crtc); - - OUT_MODE(NV50_CRTC0_CLUT_MODE + offset, - crtc->fb->depth == 8 ? NV50_CRTC0_CLUT_MODE_OFF : NV50_CRTC0_CLUT_MODE_ON); - OUT_MODE(NV50_CRTC0_CLUT_OFFSET + offset, crtc->lut->block->start >> 8); - if (dev_priv->chipset != 0x50) - OUT_MODE(NV84_CRTC0_BLANK_UNK1 + offset, NV84_CRTC0_BLANK_UNK1_UNBLANK); - OUT_MODE(NV50_CRTC0_BLANK_CTRL + offset, NV50_CRTC0_BLANK_CTRL_UNBLANK); - } - - /* sometimes you need to know if a screen is already blanked. */ - crtc->blanked = blanked; - - return 0; -} - -static int nv50_crtc_set_dither(struct nv50_crtc *crtc) -{ - struct drm_nouveau_private *dev_priv = crtc->dev->dev_private; - uint32_t offset = crtc->index * 0x400; - - NV50_DEBUG("\n"); - - OUT_MODE(NV50_CRTC0_DITHERING_CTRL + offset, crtc->use_dithering ? - NV50_CRTC0_DITHERING_CTRL_ON : NV50_CRTC0_DITHERING_CTRL_OFF); - - return 0; -} - -static void nv50_crtc_calc_scale(struct nv50_crtc *crtc, uint32_t *outX, uint32_t *outY) -{ - uint32_t hor_scale, ver_scale; - - /* max res is 8192, which is 2^13, which leaves 19 bits */ - hor_scale = (crtc->native_mode->hdisplay << 19)/crtc->mode->hdisplay; - ver_scale = (crtc->native_mode->vdisplay << 19)/crtc->mode->vdisplay; - - if (ver_scale > hor_scale) { - *outX = (crtc->mode->hdisplay * hor_scale) >> 19; - *outY = (crtc->mode->vdisplay * hor_scale) >> 19; - } else { - *outX = (crtc->mode->hdisplay * ver_scale) >> 19; - *outY = (crtc->mode->vdisplay * ver_scale) >> 19; - } -} - -static int nv50_crtc_set_scale(struct nv50_crtc *crtc) -{ - struct drm_nouveau_private *dev_priv = crtc->dev->dev_private; - uint32_t offset = crtc->index * 0x400; - uint32_t outX, outY; - - NV50_DEBUG("\n"); - - switch (crtc->requested_scaling_mode) { - case SCALE_ASPECT: - nv50_crtc_calc_scale(crtc, &outX, &outY); - break; - case SCALE_FULLSCREEN: - outX = crtc->native_mode->hdisplay; - outY = crtc->native_mode->vdisplay; - break; - case SCALE_NOSCALE: - case SCALE_NON_GPU: - default: - outX = crtc->mode->hdisplay; - outY = crtc->mode->vdisplay; - break; - } - - /* Got a better name for SCALER_ACTIVE? */ - /* One day i've got to really figure out why this is needed. */ - if ((crtc->mode->flags & DRM_MODE_FLAG_DBLSCAN) || (crtc->mode->flags & DRM_MODE_FLAG_INTERLACE) || - crtc->mode->hdisplay != outX || crtc->mode->vdisplay != outY) { - OUT_MODE(NV50_CRTC0_SCALE_CTRL + offset, NV50_CRTC0_SCALE_CTRL_SCALER_ACTIVE); - } else { - OUT_MODE(NV50_CRTC0_SCALE_CTRL + offset, NV50_CRTC0_SCALE_CTRL_SCALER_INACTIVE); - } - - OUT_MODE(NV50_CRTC0_SCALE_RES1 + offset, outY << 16 | outX); - OUT_MODE(NV50_CRTC0_SCALE_RES2 + offset, outY << 16 | outX); - - /* processed */ - crtc->scaling_mode = crtc->requested_scaling_mode; - - return 0; -} - -static int nv50_crtc_calc_clock(struct nv50_crtc *crtc, - uint32_t *bestN1, uint32_t *bestN2, uint32_t *bestM1, uint32_t *bestM2, uint32_t *bestlog2P) -{ - struct nouveau_hw_mode *hw_mode; - struct pll_lims limits; - int clk, vco2, crystal; - int minvco1, minvco2, minU1, maxU1, minU2, maxU2, minM1, maxM1; - int maxvco1, maxvco2, minN1, maxN1, minM2, maxM2, minN2, maxN2; - bool fixedgain2; - int M1, N1, M2, N2, log2P; - int clkP, calcclk1, calcclk2, calcclkout; - int delta, bestdelta = INT_MAX; - int bestclk = 0; - - NV50_DEBUG("\n"); - - if (crtc->use_native_mode) - hw_mode = crtc->native_mode; - else - hw_mode = crtc->mode; - - clk = hw_mode->clock; - - /* These are in the g80 bios tables, at least in mine. */ - if (!get_pll_limits(crtc->dev, NV50_PDISPLAY_CRTC_CLK_CLK_CTRL1(crtc->index), &limits)) - return -EINVAL; - - minvco1 = limits.vco1.minfreq, maxvco1 = limits.vco1.maxfreq; - minvco2 = limits.vco2.minfreq, maxvco2 = limits.vco2.maxfreq; - minU1 = limits.vco1.min_inputfreq, minU2 = limits.vco2.min_inputfreq; - maxU1 = limits.vco1.max_inputfreq, maxU2 = limits.vco2.max_inputfreq; - minM1 = limits.vco1.min_m, maxM1 = limits.vco1.max_m; - minN1 = limits.vco1.min_n, maxN1 = limits.vco1.max_n; - minM2 = limits.vco2.min_m, maxM2 = limits.vco2.max_m; - minN2 = limits.vco2.min_n, maxN2 = limits.vco2.max_n; - crystal = limits.refclk; - fixedgain2 = (minM2 == maxM2 && minN2 == maxN2); - - vco2 = (maxvco2 - maxvco2/200) / 2; - for (log2P = 0; clk && log2P < 6 && clk <= (vco2 >> log2P); log2P++) /* log2P is maximum of 6 */ - ; - clkP = clk << log2P; - - if (maxvco2 < clk + clk/200) /* +0.5% */ - maxvco2 = clk + clk/200; - - for (M1 = minM1; M1 <= maxM1; M1++) { - if (crystal/M1 < minU1) - return bestclk; - if (crystal/M1 > maxU1) - continue; - - for (N1 = minN1; N1 <= maxN1; N1++) { - calcclk1 = crystal * N1 / M1; - if (calcclk1 < minvco1) - continue; - if (calcclk1 > maxvco1) - break; - - for (M2 = minM2; M2 <= maxM2; M2++) { - if (calcclk1/M2 < minU2) - break; - if (calcclk1/M2 > maxU2) - continue; - - /* add calcclk1/2 to round better */ - N2 = (clkP * M2 + calcclk1/2) / calcclk1; - if (N2 < minN2) - continue; - if (N2 > maxN2) - break; - - if (!fixedgain2) { - calcclk2 = calcclk1 * N2 / M2; - if (calcclk2 < minvco2) - break; - if (calcclk2 > maxvco2) - continue; - } else - calcclk2 = calcclk1; - - calcclkout = calcclk2 >> log2P; - delta = abs(calcclkout - clk); - /* we do an exhaustive search rather than terminating - * on an optimality condition... - */ - if (delta < bestdelta) { - bestdelta = delta; - bestclk = calcclkout; - *bestN1 = N1; - *bestN2 = N2; - *bestM1 = M1; - *bestM2 = M2; - *bestlog2P = log2P; - if (delta == 0) /* except this one */ - return bestclk; - } - } - } - } - - return bestclk; -} - -static int nv50_crtc_set_clock(struct nv50_crtc *crtc) -{ - struct drm_nouveau_private *dev_priv = crtc->dev->dev_private; - - uint32_t pll_reg = NV50_PDISPLAY_CRTC_CLK_CLK_CTRL1(crtc->index); - - uint32_t N1 = 0, N2 = 0, M1 = 0, M2 = 0, log2P = 0; - - uint32_t reg1 = NV_READ(pll_reg + 4); - uint32_t reg2 = NV_READ(pll_reg + 8); - - NV50_DEBUG("\n"); - - NV_WRITE(pll_reg, NV50_PDISPLAY_CRTC_CLK_CLK_CTRL1_CONNECTED | 0x10000011); - - /* The other bits are typically empty, but let's be on the safe side. */ - reg1 &= 0xff00ff00; - reg2 &= 0x8000ff00; - - if (!nv50_crtc_calc_clock(crtc, &N1, &N2, &M1, &M2, &log2P)) - return -EINVAL; - - NV50_DEBUG("N1 %d N2 %d M1 %d M2 %d log2P %d\n", N1, N2, M1, M2, log2P); - - reg1 |= (M1 << 16) | N1; - reg2 |= (log2P << 28) | (M2 << 16) | N2; - - NV_WRITE(pll_reg + 4, reg1); - NV_WRITE(pll_reg + 8, reg2); - - return 0; -} - -static int nv50_crtc_set_clock_mode(struct nv50_crtc *crtc) -{ - struct drm_nouveau_private *dev_priv = crtc->dev->dev_private; - - NV50_DEBUG("\n"); - - /* This acknowledges a clock request. */ - NV_WRITE(NV50_PDISPLAY_CRTC_CLK_CLK_CTRL2(crtc->index), 0); - - return 0; -} - -static int nv50_crtc_destroy(struct nv50_crtc *crtc) -{ - struct drm_device *dev = crtc->dev; - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nv50_display *display = nv50_get_display(dev); - - NV50_DEBUG("\n"); - - if (!display || !crtc) - return -EINVAL; - - list_del(&crtc->item); - - nv50_fb_destroy(crtc); - nv50_lut_destroy(crtc); - nv50_cursor_destroy(crtc); - - kfree(crtc->mode); - kfree(crtc->native_mode); - - if (dev_priv->free_crtc) - dev_priv->free_crtc(crtc); - - return 0; -} - -int nv50_crtc_create(struct drm_device *dev, int index) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nv50_crtc *crtc = NULL; - struct nv50_display *display = NULL; - int rval = 0; - - NV50_DEBUG("\n"); - - /* This allows the public layer to do it's thing. */ - if (dev_priv->alloc_crtc) - crtc = dev_priv->alloc_crtc(dev); - - if (!crtc) - return -ENOMEM; - - crtc->dev = dev; - - display = nv50_get_display(dev); - if (!display) { - rval = -EINVAL; - goto out; - } - - list_add_tail(&crtc->item, &display->crtcs); - - crtc->index = index; - - crtc->mode = kzalloc(sizeof(struct nouveau_hw_mode), GFP_KERNEL); - crtc->native_mode = kzalloc(sizeof(struct nouveau_hw_mode), GFP_KERNEL); - - crtc->requested_scaling_mode = SCALE_INVALID; - crtc->scaling_mode = SCALE_INVALID; - - if (!crtc->mode || !crtc->native_mode) { - rval = -ENOMEM; - goto out; - } - - nv50_fb_create(crtc); - nv50_lut_create(crtc); - nv50_cursor_create(crtc); - - /* set function pointers */ - crtc->validate_mode = nv50_crtc_validate_mode; - crtc->set_mode = nv50_crtc_set_mode; - crtc->execute_mode = nv50_crtc_execute_mode; - crtc->set_fb = nv50_crtc_set_fb; - crtc->blank = nv50_crtc_blank; - crtc->set_dither = nv50_crtc_set_dither; - crtc->set_scale = nv50_crtc_set_scale; - crtc->set_clock = nv50_crtc_set_clock; - crtc->set_clock_mode = nv50_crtc_set_clock_mode; - crtc->destroy = nv50_crtc_destroy; - - return 0; - -out: - if (crtc->mode) - kfree(crtc->mode); - if (crtc->native_mode) - kfree(crtc->native_mode); - if (dev_priv->free_crtc) - dev_priv->free_crtc(crtc); - - return rval; -} |