LXR linux/drivers/gpu/drm/nouveau/nv50

   1/*
   2 * Copyright (C) 2008 Maarten Maathuis.
   3 * All Rights Reserved.
   4 *
   5 * Permission is hereby granted, free of charge, to any person obtaining
   6 * a copy of this software and associated documentation files (the
   7 * "Software"), to deal in the Software without restriction, including
   8 * without limitation the rights to use, copy, modify, merge, publish,
   9 * distribute, sublicense, and/or sell copies of the Software, and to
  10 * permit persons to whom the Software is furnished to do so, subject to
  11 * the following conditions:
  12 *
  13 * The above copyright notice and this permission notice (including the
  14 * next paragraph) shall be included in all copies or substantial
  15 * portions of the Software.
  16 *
  17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24 *
  25 */
  26
  27#include "drmP.h"
  28#include "drm_mode.h"
  29
  30#define NOUVEAU_DMA_DEBUG (nouveau_reg_debug & NOUVEAU_REG_DEBUG_EVO)
  31#include "nouveau_reg.h"
  32#include "nouveau_drv.h"
  33#include "nouveau_crtc.h"
  34#include "nv50_display.h"
  35
  36static void
  37nv50_cursor_show(struct nouveau_crtc *nv_crtc, bool update)
  38{
  39        struct drm_device *dev = nv_crtc->base.dev;
  40        struct drm_nouveau_private *dev_priv = dev->dev_private;
  41        struct nouveau_channel *evo = nv50_display(dev)->master;
  42        int ret;
  43
  44        NV_DEBUG_KMS(dev, "\n");
  45
  46        if (update && nv_crtc->cursor.visible)
  47                return;
  48
  49        ret = RING_SPACE(evo, (dev_priv->chipset != 0x50 ? 5 : 3) + update * 2);
  50        if (ret) {
  51                NV_ERROR(dev, "no space while unhiding cursor\n");
  52                return;
  53        }
  54
  55        if (dev_priv->chipset != 0x50) {
  56                BEGIN_RING(evo, 0, NV84_EVO_CRTC(nv_crtc->index, CURSOR_DMA), 1);
  57                OUT_RING(evo, NvEvoVRAM);
  58        }
  59        BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, CURSOR_CTRL), 2);
  60        OUT_RING(evo, NV50_EVO_CRTC_CURSOR_CTRL_SHOW);
  61        OUT_RING(evo, nv_crtc->cursor.offset >> 8);
  62
  63        if (update) {
  64                BEGIN_RING(evo, 0, NV50_EVO_UPDATE, 1);
  65                OUT_RING(evo, 0);
  66                FIRE_RING(evo);
  67                nv_crtc->cursor.visible = true;
  68        }
  69}
  70
  71static void
  72nv50_cursor_hide(struct nouveau_crtc *nv_crtc, bool update)
  73{
  74        struct drm_device *dev = nv_crtc->base.dev;
  75        struct drm_nouveau_private *dev_priv = dev->dev_private;
  76        struct nouveau_channel *evo = nv50_display(dev)->master;
  77        int ret;
  78
  79        NV_DEBUG_KMS(dev, "\n");
  80
  81        if (update && !nv_crtc->cursor.visible)
  82                return;
  83
  84        ret = RING_SPACE(evo, (dev_priv->chipset != 0x50 ? 5 : 3) + update * 2);
  85        if (ret) {
  86                NV_ERROR(dev, "no space while hiding cursor\n");
  87                return;
  88        }
  89        BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, CURSOR_CTRL), 2);
  90        OUT_RING(evo, NV50_EVO_CRTC_CURSOR_CTRL_HIDE);
  91        OUT_RING(evo, 0);
  92        if (dev_priv->chipset != 0x50) {
  93                BEGIN_RING(evo, 0, NV84_EVO_CRTC(nv_crtc->index, CURSOR_DMA), 1);
  94                OUT_RING(evo, NV84_EVO_CRTC_CURSOR_DMA_HANDLE_NONE);
  95        }
  96
  97        if (update) {
  98                BEGIN_RING(evo, 0, NV50_EVO_UPDATE, 1);
  99                OUT_RING(evo, 0);
 100                FIRE_RING(evo);
 101                nv_crtc->cursor.visible = false;
 102        }
 103}
 104
 105static void
 106nv50_cursor_set_pos(struct nouveau_crtc *nv_crtc, int x, int y)
 107{
 108        struct drm_device *dev = nv_crtc->base.dev;
 109
 110        nv_crtc->cursor_saved_x = x; nv_crtc->cursor_saved_y = y;
 111        nv_wr32(dev, NV50_PDISPLAY_CURSOR_USER_POS(nv_crtc->index),
 112                ((y & 0xFFFF) << 16) | (x & 0xFFFF));
 113        /* Needed to make the cursor move. */
 114        nv_wr32(dev, NV50_PDISPLAY_CURSOR_USER_POS_CTRL(nv_crtc->index), 0);
 115}
 116
 117static void
 118nv50_cursor_set_offset(struct nouveau_crtc *nv_crtc, uint32_t offset)
 119{
 120        NV_DEBUG_KMS(nv_crtc->base.dev, "\n");
 121        if (offset == nv_crtc->cursor.offset)
 122                return;
 123
 124        nv_crtc->cursor.offset = offset;
 125        if (nv_crtc->cursor.visible) {
 126                nv_crtc->cursor.visible = false;
 127                nv_crtc->cursor.show(nv_crtc, true);
 128        }
 129}
 130
 131int
 132nv50_cursor_init(struct nouveau_crtc *nv_crtc)
 133{
 134        nv_crtc->cursor.set_offset = nv50_cursor_set_offset;
 135        nv_crtc->cursor.set_pos = nv50_cursor_set_pos;
 136        nv_crtc->cursor.hide = nv50_cursor_hide;
 137        nv_crtc->cursor.show = nv50_cursor_show;
 138        return 0;
 139}
 140
 141void
 142nv50_cursor_fini(struct nouveau_crtc *nv_crtc)
 143{
 144        struct drm_device *dev = nv_crtc->base.dev;
 145        int idx = nv_crtc->index;
 146
 147        NV_DEBUG_KMS(dev, "\n");
 148
 149        nv_wr32(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(idx), 0);
 150        if (!nv_wait(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(idx),
 151                     NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS, 0)) {
 152                NV_ERROR(dev, "timeout: CURSOR_CTRL2_STATUS == 0\n");
 153                NV_ERROR(dev, "CURSOR_CTRL2 = 0x%08x\n",
 154                         nv_rd32(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(idx)));
 155        }
 156}
 157
 158