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Diffstat (limited to 'linux-core/nv50_crtc.c')
-rw-r--r--linux-core/nv50_crtc.c533
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;
-}