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path: root/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
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Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c516
1 files changed, 516 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
new file mode 100644
index 000000000000..90891593bf6c
--- /dev/null
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
@@ -0,0 +1,516 @@
+/**************************************************************************
+ *
+ * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
+ * 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, sub license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS 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 "vmwgfx_kms.h"
+
+#define vmw_crtc_to_ldu(x) \
+ container_of(x, struct vmw_legacy_display_unit, base.crtc)
+#define vmw_encoder_to_ldu(x) \
+ container_of(x, struct vmw_legacy_display_unit, base.encoder)
+#define vmw_connector_to_ldu(x) \
+ container_of(x, struct vmw_legacy_display_unit, base.connector)
+
+struct vmw_legacy_display {
+ struct list_head active;
+
+ unsigned num_active;
+
+ struct vmw_framebuffer *fb;
+};
+
+/**
+ * Display unit using the legacy register interface.
+ */
+struct vmw_legacy_display_unit {
+ struct vmw_display_unit base;
+
+ struct list_head active;
+
+ unsigned unit;
+};
+
+static void vmw_ldu_destroy(struct vmw_legacy_display_unit *ldu)
+{
+ list_del_init(&ldu->active);
+ vmw_display_unit_cleanup(&ldu->base);
+ kfree(ldu);
+}
+
+
+/*
+ * Legacy Display Unit CRTC functions
+ */
+
+static void vmw_ldu_crtc_save(struct drm_crtc *crtc)
+{
+}
+
+static void vmw_ldu_crtc_restore(struct drm_crtc *crtc)
+{
+}
+
+static void vmw_ldu_crtc_gamma_set(struct drm_crtc *crtc,
+ u16 *r, u16 *g, u16 *b,
+ uint32_t size)
+{
+}
+
+static void vmw_ldu_crtc_destroy(struct drm_crtc *crtc)
+{
+ vmw_ldu_destroy(vmw_crtc_to_ldu(crtc));
+}
+
+static int vmw_ldu_commit_list(struct vmw_private *dev_priv)
+{
+ struct vmw_legacy_display *lds = dev_priv->ldu_priv;
+ struct vmw_legacy_display_unit *entry;
+ struct drm_crtc *crtc;
+ int i = 0;
+
+ /* to stop the screen from changing size on resize */
+ vmw_write(dev_priv, SVGA_REG_NUM_GUEST_DISPLAYS, 0);
+ for (i = 0; i < lds->num_active; i++) {
+ vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, i);
+ vmw_write(dev_priv, SVGA_REG_DISPLAY_IS_PRIMARY, !i);
+ vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_X, 0);
+ vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_Y, 0);
+ vmw_write(dev_priv, SVGA_REG_DISPLAY_WIDTH, 0);
+ vmw_write(dev_priv, SVGA_REG_DISPLAY_HEIGHT, 0);
+ vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
+ }
+
+ /* Now set the mode */
+ vmw_write(dev_priv, SVGA_REG_NUM_GUEST_DISPLAYS, lds->num_active);
+ i = 0;
+ list_for_each_entry(entry, &lds->active, active) {
+ crtc = &entry->base.crtc;
+
+ vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, i);
+ vmw_write(dev_priv, SVGA_REG_DISPLAY_IS_PRIMARY, !i);
+ vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_X, crtc->x);
+ vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_Y, crtc->y);
+ vmw_write(dev_priv, SVGA_REG_DISPLAY_WIDTH, crtc->mode.hdisplay);
+ vmw_write(dev_priv, SVGA_REG_DISPLAY_HEIGHT, crtc->mode.vdisplay);
+ vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
+
+ i++;
+ }
+
+ return 0;
+}
+
+static int vmw_ldu_del_active(struct vmw_private *vmw_priv,
+ struct vmw_legacy_display_unit *ldu)
+{
+ struct vmw_legacy_display *ld = vmw_priv->ldu_priv;
+ if (list_empty(&ldu->active))
+ return 0;
+
+ list_del_init(&ldu->active);
+ if (--(ld->num_active) == 0) {
+ BUG_ON(!ld->fb);
+ if (ld->fb->unpin)
+ ld->fb->unpin(ld->fb);
+ ld->fb = NULL;
+ }
+
+ return 0;
+}
+
+static int vmw_ldu_add_active(struct vmw_private *vmw_priv,
+ struct vmw_legacy_display_unit *ldu,
+ struct vmw_framebuffer *vfb)
+{
+ struct vmw_legacy_display *ld = vmw_priv->ldu_priv;
+ struct vmw_legacy_display_unit *entry;
+ struct list_head *at;
+
+ if (!list_empty(&ldu->active))
+ return 0;
+
+ at = &ld->active;
+ list_for_each_entry(entry, &ld->active, active) {
+ if (entry->unit > ldu->unit)
+ break;
+
+ at = &entry->active;
+ }
+
+ list_add(&ldu->active, at);
+ if (ld->num_active++ == 0) {
+ BUG_ON(ld->fb);
+ if (vfb->pin)
+ vfb->pin(vfb);
+ ld->fb = vfb;
+ }
+
+ return 0;
+}
+
+static int vmw_ldu_crtc_set_config(struct drm_mode_set *set)
+{
+ struct vmw_private *dev_priv;
+ struct vmw_legacy_display_unit *ldu;
+ struct drm_connector *connector;
+ struct drm_display_mode *mode;
+ struct drm_encoder *encoder;
+ struct vmw_framebuffer *vfb;
+ struct drm_framebuffer *fb;
+ struct drm_crtc *crtc;
+
+ if (!set)
+ return -EINVAL;
+
+ if (!set->crtc)
+ return -EINVAL;
+
+ /* get the ldu */
+ crtc = set->crtc;
+ ldu = vmw_crtc_to_ldu(crtc);
+ vfb = set->fb ? vmw_framebuffer_to_vfb(set->fb) : NULL;
+ dev_priv = vmw_priv(crtc->dev);
+
+ if (set->num_connectors > 1) {
+ DRM_ERROR("to many connectors\n");
+ return -EINVAL;
+ }
+
+ if (set->num_connectors == 1 &&
+ set->connectors[0] != &ldu->base.connector) {
+ DRM_ERROR("connector doesn't match %p %p\n",
+ set->connectors[0], &ldu->base.connector);
+ return -EINVAL;
+ }
+
+ /* ldu only supports one fb active at the time */
+ if (dev_priv->ldu_priv->fb && vfb &&
+ dev_priv->ldu_priv->fb != vfb) {
+ DRM_ERROR("Multiple framebuffers not supported\n");
+ return -EINVAL;
+ }
+
+ /* since they always map one to one these are safe */
+ connector = &ldu->base.connector;
+ encoder = &ldu->base.encoder;
+
+ /* should we turn the crtc off? */
+ if (set->num_connectors == 0 || !set->mode || !set->fb) {
+
+ connector->encoder = NULL;
+ encoder->crtc = NULL;
+ crtc->fb = NULL;
+
+ vmw_ldu_del_active(dev_priv, ldu);
+
+ vmw_ldu_commit_list(dev_priv);
+
+ return 0;
+ }
+
+
+ /* we now know we want to set a mode */
+ mode = set->mode;
+ fb = set->fb;
+
+ if (set->x + mode->hdisplay > fb->width ||
+ set->y + mode->vdisplay > fb->height) {
+ DRM_ERROR("set outside of framebuffer\n");
+ return -EINVAL;
+ }
+
+ vmw_fb_off(dev_priv);
+
+ crtc->fb = fb;
+ encoder->crtc = crtc;
+ connector->encoder = encoder;
+ crtc->x = set->x;
+ crtc->y = set->y;
+ crtc->mode = *mode;
+
+ vmw_ldu_add_active(dev_priv, ldu, vfb);
+
+ vmw_ldu_commit_list(dev_priv);
+
+ return 0;
+}
+
+static struct drm_crtc_funcs vmw_legacy_crtc_funcs = {
+ .save = vmw_ldu_crtc_save,
+ .restore = vmw_ldu_crtc_restore,
+ .cursor_set = vmw_du_crtc_cursor_set,
+ .cursor_move = vmw_du_crtc_cursor_move,
+ .gamma_set = vmw_ldu_crtc_gamma_set,
+ .destroy = vmw_ldu_crtc_destroy,
+ .set_config = vmw_ldu_crtc_set_config,
+};
+
+/*
+ * Legacy Display Unit encoder functions
+ */
+
+static void vmw_ldu_encoder_destroy(struct drm_encoder *encoder)
+{
+ vmw_ldu_destroy(vmw_encoder_to_ldu(encoder));
+}
+
+static struct drm_encoder_funcs vmw_legacy_encoder_funcs = {
+ .destroy = vmw_ldu_encoder_destroy,
+};
+
+/*
+ * Legacy Display Unit connector functions
+ */
+
+static void vmw_ldu_connector_dpms(struct drm_connector *connector, int mode)
+{
+}
+
+static void vmw_ldu_connector_save(struct drm_connector *connector)
+{
+}
+
+static void vmw_ldu_connector_restore(struct drm_connector *connector)
+{
+}
+
+static enum drm_connector_status
+ vmw_ldu_connector_detect(struct drm_connector *connector)
+{
+ /* XXX vmwctrl should control connection status */
+ if (vmw_connector_to_ldu(connector)->base.unit == 0)
+ return connector_status_connected;
+ return connector_status_disconnected;
+}
+
+static struct drm_display_mode vmw_ldu_connector_builtin[] = {
+ /* 640x480@60Hz */
+ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
+ 752, 800, 0, 480, 489, 492, 525, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 800x600@60Hz */
+ { DRM_MODE("800x600",
+ DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
+ 40000, 800, 840, 968, 1056, 0, 600, 601, 605, 628,
+ 0, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1024x768@60Hz */
+ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
+ 1184, 1344, 0, 768, 771, 777, 806, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1152x864@75Hz */
+ { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
+ 1344, 1600, 0, 864, 865, 868, 900, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x768@60Hz */
+ { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
+ 1472, 1664, 0, 768, 771, 778, 798, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x800@60Hz */
+ { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
+ 1480, 1680, 0, 800, 803, 809, 831, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+ /* 1280x960@60Hz */
+ { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
+ 1488, 1800, 0, 960, 961, 964, 1000, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1280x1024@60Hz */
+ { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
+ 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1360x768@60Hz */
+ { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
+ 1536, 1792, 0, 768, 771, 777, 795, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1440x1050@60Hz */
+ { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
+ 1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1440x900@60Hz */
+ { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
+ 1672, 1904, 0, 900, 903, 909, 934, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1600x1200@60Hz */
+ { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
+ 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1680x1050@60Hz */
+ { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
+ 1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1792x1344@60Hz */
+ { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
+ 2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1853x1392@60Hz */
+ { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
+ 2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1920x1200@60Hz */
+ { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
+ 2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 1920x1440@60Hz */
+ { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
+ 2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* 2560x1600@60Hz */
+ { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
+ 3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
+ DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
+ /* Terminate */
+ { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
+};
+
+static int vmw_ldu_connector_fill_modes(struct drm_connector *connector,
+ uint32_t max_width, uint32_t max_height)
+{
+ struct drm_device *dev = connector->dev;
+ struct drm_display_mode *mode = NULL;
+ int i;
+
+ for (i = 0; vmw_ldu_connector_builtin[i].type != 0; i++) {
+ if (vmw_ldu_connector_builtin[i].hdisplay > max_width ||
+ vmw_ldu_connector_builtin[i].vdisplay > max_height)
+ continue;
+
+ mode = drm_mode_duplicate(dev, &vmw_ldu_connector_builtin[i]);
+ if (!mode)
+ return 0;
+ mode->vrefresh = drm_mode_vrefresh(mode);
+
+ drm_mode_probed_add(connector, mode);
+ }
+
+ drm_mode_connector_list_update(connector);
+
+ return 1;
+}
+
+static int vmw_ldu_connector_set_property(struct drm_connector *connector,
+ struct drm_property *property,
+ uint64_t val)
+{
+ return 0;
+}
+
+static void vmw_ldu_connector_destroy(struct drm_connector *connector)
+{
+ vmw_ldu_destroy(vmw_connector_to_ldu(connector));
+}
+
+static struct drm_connector_funcs vmw_legacy_connector_funcs = {
+ .dpms = vmw_ldu_connector_dpms,
+ .save = vmw_ldu_connector_save,
+ .restore = vmw_ldu_connector_restore,
+ .detect = vmw_ldu_connector_detect,
+ .fill_modes = vmw_ldu_connector_fill_modes,
+ .set_property = vmw_ldu_connector_set_property,
+ .destroy = vmw_ldu_connector_destroy,
+};
+
+static int vmw_ldu_init(struct vmw_private *dev_priv, unsigned unit)
+{
+ struct vmw_legacy_display_unit *ldu;
+ struct drm_device *dev = dev_priv->dev;
+ struct drm_connector *connector;
+ struct drm_encoder *encoder;
+ struct drm_crtc *crtc;
+
+ ldu = kzalloc(sizeof(*ldu), GFP_KERNEL);
+ if (!ldu)
+ return -ENOMEM;
+
+ ldu->unit = unit;
+ crtc = &ldu->base.crtc;
+ encoder = &ldu->base.encoder;
+ connector = &ldu->base.connector;
+
+ drm_connector_init(dev, connector, &vmw_legacy_connector_funcs,
+ DRM_MODE_CONNECTOR_LVDS);
+ /* Initial status */
+ if (unit == 0)
+ connector->status = connector_status_connected;
+ else
+ connector->status = connector_status_disconnected;
+
+ drm_encoder_init(dev, encoder, &vmw_legacy_encoder_funcs,
+ DRM_MODE_ENCODER_LVDS);
+ drm_mode_connector_attach_encoder(connector, encoder);
+ encoder->possible_crtcs = (1 << unit);
+ encoder->possible_clones = 0;
+
+ INIT_LIST_HEAD(&ldu->active);
+
+ drm_crtc_init(dev, crtc, &vmw_legacy_crtc_funcs);
+
+ drm_connector_attach_property(connector,
+ dev->mode_config.dirty_info_property,
+ 1);
+
+ return 0;
+}
+
+int vmw_kms_init_legacy_display_system(struct vmw_private *dev_priv)
+{
+ if (dev_priv->ldu_priv) {
+ DRM_INFO("ldu system already on\n");
+ return -EINVAL;
+ }
+
+ dev_priv->ldu_priv = kmalloc(GFP_KERNEL, sizeof(*dev_priv->ldu_priv));
+
+ if (!dev_priv->ldu_priv)
+ return -ENOMEM;
+
+ INIT_LIST_HEAD(&dev_priv->ldu_priv->active);
+ dev_priv->ldu_priv->num_active = 0;
+ dev_priv->ldu_priv->fb = NULL;
+
+ drm_mode_create_dirty_info_property(dev_priv->dev);
+
+ vmw_ldu_init(dev_priv, 0);
+ vmw_ldu_init(dev_priv, 1);
+ vmw_ldu_init(dev_priv, 2);
+ vmw_ldu_init(dev_priv, 3);
+ vmw_ldu_init(dev_priv, 4);
+ vmw_ldu_init(dev_priv, 5);
+ vmw_ldu_init(dev_priv, 6);
+ vmw_ldu_init(dev_priv, 7);
+
+ return 0;
+}
+
+int vmw_kms_close_legacy_display_system(struct vmw_private *dev_priv)
+{
+ if (!dev_priv->ldu_priv)
+ return -ENOSYS;
+
+ BUG_ON(!list_empty(&dev_priv->ldu_priv->active));
+
+ kfree(dev_priv->ldu_priv);
+
+ return 0;
+}