diff options
Diffstat (limited to 'drivers/gpu/drm/qxl/qxl_display.c')
| -rw-r--r-- | drivers/gpu/drm/qxl/qxl_display.c | 1233 |
1 files changed, 1233 insertions, 0 deletions
diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c new file mode 100644 index 000000000..f22a1b776 --- /dev/null +++ b/drivers/gpu/drm/qxl/qxl_display.c @@ -0,0 +1,1233 @@ +/* + * Copyright 2013 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 + * Alon Levy + */ + +#include <linux/crc32.h> +#include <linux/delay.h> + +#include <drm/drm_drv.h> +#include <drm/drm_atomic.h> +#include <drm/drm_atomic_helper.h> +#include <drm/drm_gem_framebuffer_helper.h> +#include <drm/drm_plane_helper.h> +#include <drm/drm_probe_helper.h> +#include <drm/drm_simple_kms_helper.h> + +#include "qxl_drv.h" +#include "qxl_object.h" + +static bool qxl_head_enabled(struct qxl_head *head) +{ + return head->width && head->height; +} + +static int qxl_alloc_client_monitors_config(struct qxl_device *qdev, + unsigned int count) +{ + if (qdev->client_monitors_config && + count > qdev->client_monitors_config->count) { + kfree(qdev->client_monitors_config); + qdev->client_monitors_config = NULL; + } + if (!qdev->client_monitors_config) { + qdev->client_monitors_config = kzalloc( + struct_size(qdev->client_monitors_config, + heads, count), GFP_KERNEL); + if (!qdev->client_monitors_config) + return -ENOMEM; + } + qdev->client_monitors_config->count = count; + return 0; +} + +enum { + MONITORS_CONFIG_MODIFIED, + MONITORS_CONFIG_UNCHANGED, + MONITORS_CONFIG_BAD_CRC, + MONITORS_CONFIG_ERROR, +}; + +static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev) +{ + int i; + int num_monitors; + uint32_t crc; + int status = MONITORS_CONFIG_UNCHANGED; + + num_monitors = qdev->rom->client_monitors_config.count; + crc = crc32(0, (const uint8_t *)&qdev->rom->client_monitors_config, + sizeof(qdev->rom->client_monitors_config)); + if (crc != qdev->rom->client_monitors_config_crc) + return MONITORS_CONFIG_BAD_CRC; + if (!num_monitors) { + DRM_DEBUG_KMS("no client monitors configured\n"); + return status; + } + if (num_monitors > qxl_num_crtc) { + DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n", + qxl_num_crtc, num_monitors); + num_monitors = qxl_num_crtc; + } else { + num_monitors = qdev->rom->client_monitors_config.count; + } + if (qdev->client_monitors_config + && (num_monitors != qdev->client_monitors_config->count)) { + status = MONITORS_CONFIG_MODIFIED; + } + if (qxl_alloc_client_monitors_config(qdev, num_monitors)) { + status = MONITORS_CONFIG_ERROR; + return status; + } + /* we copy max from the client but it isn't used */ + qdev->client_monitors_config->max_allowed = qxl_num_crtc; + for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) { + struct qxl_urect *c_rect = + &qdev->rom->client_monitors_config.heads[i]; + struct qxl_head *client_head = + &qdev->client_monitors_config->heads[i]; + if (client_head->x != c_rect->left) { + client_head->x = c_rect->left; + status = MONITORS_CONFIG_MODIFIED; + } + if (client_head->y != c_rect->top) { + client_head->y = c_rect->top; + status = MONITORS_CONFIG_MODIFIED; + } + if (client_head->width != c_rect->right - c_rect->left) { + client_head->width = c_rect->right - c_rect->left; + status = MONITORS_CONFIG_MODIFIED; + } + if (client_head->height != c_rect->bottom - c_rect->top) { + client_head->height = c_rect->bottom - c_rect->top; + status = MONITORS_CONFIG_MODIFIED; + } + if (client_head->surface_id != 0) { + client_head->surface_id = 0; + status = MONITORS_CONFIG_MODIFIED; + } + if (client_head->id != i) { + client_head->id = i; + status = MONITORS_CONFIG_MODIFIED; + } + if (client_head->flags != 0) { + client_head->flags = 0; + status = MONITORS_CONFIG_MODIFIED; + } + DRM_DEBUG_KMS("read %dx%d+%d+%d\n", client_head->width, client_head->height, + client_head->x, client_head->y); + } + + return status; +} + +static void qxl_update_offset_props(struct qxl_device *qdev) +{ + struct drm_device *dev = &qdev->ddev; + struct drm_connector *connector; + struct qxl_output *output; + struct qxl_head *head; + + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + output = drm_connector_to_qxl_output(connector); + + head = &qdev->client_monitors_config->heads[output->index]; + + drm_object_property_set_value(&connector->base, + dev->mode_config.suggested_x_property, head->x); + drm_object_property_set_value(&connector->base, + dev->mode_config.suggested_y_property, head->y); + } +} + +void qxl_display_read_client_monitors_config(struct qxl_device *qdev) +{ + struct drm_device *dev = &qdev->ddev; + struct drm_modeset_acquire_ctx ctx; + int status, retries, ret; + + for (retries = 0; retries < 10; retries++) { + status = qxl_display_copy_rom_client_monitors_config(qdev); + if (status != MONITORS_CONFIG_BAD_CRC) + break; + udelay(5); + } + if (status == MONITORS_CONFIG_ERROR) { + DRM_DEBUG_KMS("ignoring client monitors config: error"); + return; + } + if (status == MONITORS_CONFIG_BAD_CRC) { + DRM_DEBUG_KMS("ignoring client monitors config: bad crc"); + return; + } + if (status == MONITORS_CONFIG_UNCHANGED) { + DRM_DEBUG_KMS("ignoring client monitors config: unchanged"); + return; + } + + DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret); + qxl_update_offset_props(qdev); + DRM_MODESET_LOCK_ALL_END(dev, ctx, ret); + if (!drm_helper_hpd_irq_event(dev)) { + /* notify that the monitor configuration changed, to + adjust at the arbitrary resolution */ + drm_kms_helper_hotplug_event(dev); + } +} + +static int qxl_check_mode(struct qxl_device *qdev, + unsigned int width, + unsigned int height) +{ + unsigned int stride; + unsigned int size; + + if (check_mul_overflow(width, 4u, &stride)) + return -EINVAL; + if (check_mul_overflow(stride, height, &size)) + return -EINVAL; + if (size > qdev->vram_size) + return -ENOMEM; + return 0; +} + +static int qxl_check_framebuffer(struct qxl_device *qdev, + struct qxl_bo *bo) +{ + return qxl_check_mode(qdev, bo->surf.width, bo->surf.height); +} + +static int qxl_add_mode(struct drm_connector *connector, + unsigned int width, + unsigned int height, + bool preferred) +{ + struct drm_device *dev = connector->dev; + struct qxl_device *qdev = to_qxl(dev); + struct drm_display_mode *mode = NULL; + int rc; + + rc = qxl_check_mode(qdev, width, height); + if (rc != 0) + return 0; + + mode = drm_cvt_mode(dev, width, height, 60, false, false, false); + if (preferred) + mode->type |= DRM_MODE_TYPE_PREFERRED; + mode->hdisplay = width; + mode->vdisplay = height; + drm_mode_set_name(mode); + drm_mode_probed_add(connector, mode); + return 1; +} + +static int qxl_add_monitors_config_modes(struct drm_connector *connector) +{ + struct drm_device *dev = connector->dev; + struct qxl_device *qdev = to_qxl(dev); + struct qxl_output *output = drm_connector_to_qxl_output(connector); + int h = output->index; + struct qxl_head *head; + + if (!qdev->monitors_config) + return 0; + if (h >= qxl_num_crtc) + return 0; + if (!qdev->client_monitors_config) + return 0; + if (h >= qdev->client_monitors_config->count) + return 0; + + head = &qdev->client_monitors_config->heads[h]; + DRM_DEBUG_KMS("head %d is %dx%d\n", h, head->width, head->height); + + return qxl_add_mode(connector, head->width, head->height, true); +} + +static struct mode_size { + int w; + int h; +} extra_modes[] = { + { 720, 480}, + {1152, 768}, + {1280, 854}, +}; + +static int qxl_add_extra_modes(struct drm_connector *connector) +{ + int i, ret = 0; + + for (i = 0; i < ARRAY_SIZE(extra_modes); i++) + ret += qxl_add_mode(connector, + extra_modes[i].w, + extra_modes[i].h, + false); + return ret; +} + +static void qxl_send_monitors_config(struct qxl_device *qdev) +{ + int i; + + BUG_ON(!qdev->ram_header->monitors_config); + + if (qdev->monitors_config->count == 0) + return; + + for (i = 0 ; i < qdev->monitors_config->count ; ++i) { + struct qxl_head *head = &qdev->monitors_config->heads[i]; + + if (head->y > 8192 || head->x > 8192 || + head->width > 8192 || head->height > 8192) { + DRM_ERROR("head %d wrong: %dx%d+%d+%d\n", + i, head->width, head->height, + head->x, head->y); + return; + } + } + qxl_io_monitors_config(qdev); +} + +static void qxl_crtc_update_monitors_config(struct drm_crtc *crtc, + const char *reason) +{ + struct drm_device *dev = crtc->dev; + struct qxl_device *qdev = to_qxl(dev); + struct qxl_crtc *qcrtc = to_qxl_crtc(crtc); + struct qxl_head head; + int oldcount, i = qcrtc->index; + + if (!qdev->primary_bo) { + DRM_DEBUG_KMS("no primary surface, skip (%s)\n", reason); + return; + } + + if (!qdev->monitors_config || qxl_num_crtc <= i) + return; + + head.id = i; + head.flags = 0; + head.surface_id = 0; + oldcount = qdev->monitors_config->count; + if (crtc->state->active) { + struct drm_display_mode *mode = &crtc->mode; + + head.width = mode->hdisplay; + head.height = mode->vdisplay; + head.x = crtc->x; + head.y = crtc->y; + if (qdev->monitors_config->count < i + 1) + qdev->monitors_config->count = i + 1; + if (qdev->primary_bo == qdev->dumb_shadow_bo) + head.x += qdev->dumb_heads[i].x; + } else if (i > 0) { + head.width = 0; + head.height = 0; + head.x = 0; + head.y = 0; + if (qdev->monitors_config->count == i + 1) + qdev->monitors_config->count = i; + } else { + DRM_DEBUG_KMS("inactive head 0, skip (%s)\n", reason); + return; + } + + if (head.width == qdev->monitors_config->heads[i].width && + head.height == qdev->monitors_config->heads[i].height && + head.x == qdev->monitors_config->heads[i].x && + head.y == qdev->monitors_config->heads[i].y && + oldcount == qdev->monitors_config->count) + return; + + DRM_DEBUG_KMS("head %d, %dx%d, at +%d+%d, %s (%s)\n", + i, head.width, head.height, head.x, head.y, + crtc->state->active ? "on" : "off", reason); + if (oldcount != qdev->monitors_config->count) + DRM_DEBUG_KMS("active heads %d -> %d (%d total)\n", + oldcount, qdev->monitors_config->count, + qxl_num_crtc); + + qdev->monitors_config->heads[i] = head; + qdev->monitors_config->max_allowed = qxl_num_crtc; + qxl_send_monitors_config(qdev); +} + +static void qxl_crtc_atomic_flush(struct drm_crtc *crtc, + struct drm_crtc_state *old_crtc_state) +{ + qxl_crtc_update_monitors_config(crtc, "flush"); +} + +static void qxl_crtc_destroy(struct drm_crtc *crtc) +{ + struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc); + + qxl_bo_unref(&qxl_crtc->cursor_bo); + drm_crtc_cleanup(crtc); + kfree(qxl_crtc); +} + +static const struct drm_crtc_funcs qxl_crtc_funcs = { + .set_config = drm_atomic_helper_set_config, + .destroy = qxl_crtc_destroy, + .page_flip = drm_atomic_helper_page_flip, + .reset = drm_atomic_helper_crtc_reset, + .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, +}; + +static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb, + struct drm_file *file_priv, + unsigned int flags, unsigned int color, + struct drm_clip_rect *clips, + unsigned int num_clips) +{ + /* TODO: vmwgfx where this was cribbed from had locking. Why? */ + struct qxl_device *qdev = to_qxl(fb->dev); + struct drm_clip_rect norect; + struct qxl_bo *qobj; + struct drm_modeset_acquire_ctx ctx; + bool is_primary; + int inc = 1, ret; + + DRM_MODESET_LOCK_ALL_BEGIN(fb->dev, ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret); + + qobj = gem_to_qxl_bo(fb->obj[0]); + /* if we aren't primary surface ignore this */ + is_primary = qobj->shadow ? qobj->shadow->is_primary : qobj->is_primary; + if (!is_primary) + goto out_lock_end; + + if (!num_clips) { + num_clips = 1; + clips = &norect; + norect.x1 = norect.y1 = 0; + norect.x2 = fb->width; + norect.y2 = fb->height; + } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) { + num_clips /= 2; + inc = 2; /* skip source rects */ + } + + qxl_draw_dirty_fb(qdev, fb, qobj, flags, color, + clips, num_clips, inc, 0); + +out_lock_end: + DRM_MODESET_LOCK_ALL_END(fb->dev, ctx, ret); + + return 0; +} + +static const struct drm_framebuffer_funcs qxl_fb_funcs = { + .destroy = drm_gem_fb_destroy, + .dirty = qxl_framebuffer_surface_dirty, + .create_handle = drm_gem_fb_create_handle, +}; + +static void qxl_crtc_atomic_enable(struct drm_crtc *crtc, + struct drm_crtc_state *old_state) +{ + qxl_crtc_update_monitors_config(crtc, "enable"); +} + +static void qxl_crtc_atomic_disable(struct drm_crtc *crtc, + struct drm_crtc_state *old_state) +{ + qxl_crtc_update_monitors_config(crtc, "disable"); +} + +static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = { + .atomic_flush = qxl_crtc_atomic_flush, + .atomic_enable = qxl_crtc_atomic_enable, + .atomic_disable = qxl_crtc_atomic_disable, +}; + +static int qxl_primary_atomic_check(struct drm_plane *plane, + struct drm_plane_state *state) +{ + struct qxl_device *qdev = to_qxl(plane->dev); + struct qxl_bo *bo; + + if (!state->crtc || !state->fb) + return 0; + + bo = gem_to_qxl_bo(state->fb->obj[0]); + + return qxl_check_framebuffer(qdev, bo); +} + +static int qxl_primary_apply_cursor(struct drm_plane *plane) +{ + struct drm_device *dev = plane->dev; + struct qxl_device *qdev = to_qxl(dev); + struct drm_framebuffer *fb = plane->state->fb; + struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc); + struct qxl_cursor_cmd *cmd; + struct qxl_release *release; + int ret = 0; + + if (!qcrtc->cursor_bo) + return 0; + + ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), + QXL_RELEASE_CURSOR_CMD, + &release, NULL); + if (ret) + return ret; + + ret = qxl_release_list_add(release, qcrtc->cursor_bo); + if (ret) + goto out_free_release; + + ret = qxl_release_reserve_list(release, false); + if (ret) + goto out_free_release; + + cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release); + cmd->type = QXL_CURSOR_SET; + cmd->u.set.position.x = plane->state->crtc_x + fb->hot_x; + cmd->u.set.position.y = plane->state->crtc_y + fb->hot_y; + + cmd->u.set.shape = qxl_bo_physical_address(qdev, qcrtc->cursor_bo, 0); + + cmd->u.set.visible = 1; + qxl_release_unmap(qdev, release, &cmd->release_info); + + qxl_release_fence_buffer_objects(release); + qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); + + return ret; + +out_free_release: + qxl_release_free(qdev, release); + return ret; +} + +static void qxl_primary_atomic_update(struct drm_plane *plane, + struct drm_plane_state *old_state) +{ + struct qxl_device *qdev = to_qxl(plane->dev); + struct qxl_bo *bo = gem_to_qxl_bo(plane->state->fb->obj[0]); + struct qxl_bo *primary; + struct drm_clip_rect norect = { + .x1 = 0, + .y1 = 0, + .x2 = plane->state->fb->width, + .y2 = plane->state->fb->height + }; + uint32_t dumb_shadow_offset = 0; + + primary = bo->shadow ? bo->shadow : bo; + + if (!primary->is_primary) { + if (qdev->primary_bo) + qxl_io_destroy_primary(qdev); + qxl_io_create_primary(qdev, primary); + qxl_primary_apply_cursor(plane); + } + + if (bo->is_dumb) + dumb_shadow_offset = + qdev->dumb_heads[plane->state->crtc->index].x; + + qxl_draw_dirty_fb(qdev, plane->state->fb, bo, 0, 0, &norect, 1, 1, + dumb_shadow_offset); +} + +static void qxl_primary_atomic_disable(struct drm_plane *plane, + struct drm_plane_state *old_state) +{ + struct qxl_device *qdev = to_qxl(plane->dev); + + if (old_state->fb) { + struct qxl_bo *bo = gem_to_qxl_bo(old_state->fb->obj[0]); + + if (bo->is_primary) { + qxl_io_destroy_primary(qdev); + bo->is_primary = false; + } + } +} + +static void qxl_cursor_atomic_update(struct drm_plane *plane, + struct drm_plane_state *old_state) +{ + struct drm_device *dev = plane->dev; + struct qxl_device *qdev = to_qxl(dev); + struct drm_framebuffer *fb = plane->state->fb; + struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc); + struct qxl_release *release; + struct qxl_cursor_cmd *cmd; + struct qxl_cursor *cursor; + struct drm_gem_object *obj; + struct qxl_bo *cursor_bo = NULL, *user_bo = NULL, *old_cursor_bo = NULL; + int ret; + void *user_ptr; + int size = 64*64*4; + + ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), + QXL_RELEASE_CURSOR_CMD, + &release, NULL); + if (ret) + return; + + if (fb != old_state->fb) { + obj = fb->obj[0]; + user_bo = gem_to_qxl_bo(obj); + + /* pinning is done in the prepare/cleanup framevbuffer */ + ret = qxl_bo_kmap(user_bo, &user_ptr); + if (ret) + goto out_free_release; + + ret = qxl_alloc_bo_reserved(qdev, release, + sizeof(struct qxl_cursor) + size, + &cursor_bo); + if (ret) + goto out_kunmap; + + ret = qxl_bo_pin(cursor_bo); + if (ret) + goto out_free_bo; + + ret = qxl_release_reserve_list(release, true); + if (ret) + goto out_unpin; + + ret = qxl_bo_kmap(cursor_bo, (void **)&cursor); + if (ret) + goto out_backoff; + + cursor->header.unique = 0; + cursor->header.type = SPICE_CURSOR_TYPE_ALPHA; + cursor->header.width = 64; + cursor->header.height = 64; + cursor->header.hot_spot_x = fb->hot_x; + cursor->header.hot_spot_y = fb->hot_y; + cursor->data_size = size; + cursor->chunk.next_chunk = 0; + cursor->chunk.prev_chunk = 0; + cursor->chunk.data_size = size; + memcpy(cursor->chunk.data, user_ptr, size); + qxl_bo_kunmap(cursor_bo); + qxl_bo_kunmap(user_bo); + + cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release); + cmd->u.set.visible = 1; + cmd->u.set.shape = qxl_bo_physical_address(qdev, + cursor_bo, 0); + cmd->type = QXL_CURSOR_SET; + + old_cursor_bo = qcrtc->cursor_bo; + qcrtc->cursor_bo = cursor_bo; + cursor_bo = NULL; + } else { + + ret = qxl_release_reserve_list(release, true); + if (ret) + goto out_free_release; + + cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release); + cmd->type = QXL_CURSOR_MOVE; + } + + cmd->u.position.x = plane->state->crtc_x + fb->hot_x; + cmd->u.position.y = plane->state->crtc_y + fb->hot_y; + + qxl_release_unmap(qdev, release, &cmd->release_info); + qxl_release_fence_buffer_objects(release); + qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); + + if (old_cursor_bo != NULL) + qxl_bo_unpin(old_cursor_bo); + qxl_bo_unref(&old_cursor_bo); + qxl_bo_unref(&cursor_bo); + + return; + +out_backoff: + qxl_release_backoff_reserve_list(release); +out_unpin: + qxl_bo_unpin(cursor_bo); +out_free_bo: + qxl_bo_unref(&cursor_bo); +out_kunmap: + qxl_bo_kunmap(user_bo); +out_free_release: + qxl_release_free(qdev, release); + return; + +} + +static void qxl_cursor_atomic_disable(struct drm_plane *plane, + struct drm_plane_state *old_state) +{ + struct qxl_device *qdev = to_qxl(plane->dev); + struct qxl_release *release; + struct qxl_cursor_cmd *cmd; + int ret; + + ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), + QXL_RELEASE_CURSOR_CMD, + &release, NULL); + if (ret) + return; + + ret = qxl_release_reserve_list(release, true); + if (ret) { + qxl_release_free(qdev, release); + return; + } + + cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release); + cmd->type = QXL_CURSOR_HIDE; + qxl_release_unmap(qdev, release, &cmd->release_info); + + qxl_release_fence_buffer_objects(release); + qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); +} + +static void qxl_update_dumb_head(struct qxl_device *qdev, + int index, struct qxl_bo *bo) +{ + uint32_t width, height; + + if (index >= qdev->monitors_config->max_allowed) + return; + + if (bo && bo->is_dumb) { + width = bo->surf.width; + height = bo->surf.height; + } else { + width = 0; + height = 0; + } + + if (qdev->dumb_heads[index].width == width && + qdev->dumb_heads[index].height == height) + return; + + DRM_DEBUG("#%d: %dx%d -> %dx%d\n", index, + qdev->dumb_heads[index].width, + qdev->dumb_heads[index].height, + width, height); + qdev->dumb_heads[index].width = width; + qdev->dumb_heads[index].height = height; +} + +static void qxl_calc_dumb_shadow(struct qxl_device *qdev, + struct qxl_surface *surf) +{ + struct qxl_head *head; + int i; + + memset(surf, 0, sizeof(*surf)); + for (i = 0; i < qdev->monitors_config->max_allowed; i++) { + head = qdev->dumb_heads + i; + head->x = surf->width; + surf->width += head->width; + if (surf->height < head->height) + surf->height = head->height; + } + if (surf->width < 64) + surf->width = 64; + if (surf->height < 64) + surf->height = 64; + surf->format = SPICE_SURFACE_FMT_32_xRGB; + surf->stride = surf->width * 4; + + if (!qdev->dumb_shadow_bo || + qdev->dumb_shadow_bo->surf.width != surf->width || + qdev->dumb_shadow_bo->surf.height != surf->height) + DRM_DEBUG("%dx%d\n", surf->width, surf->height); +} + +static int qxl_plane_prepare_fb(struct drm_plane *plane, + struct drm_plane_state *new_state) +{ + struct qxl_device *qdev = to_qxl(plane->dev); + struct drm_gem_object *obj; + struct qxl_bo *user_bo; + struct qxl_surface surf; + int ret; + + if (!new_state->fb) + return 0; + + obj = new_state->fb->obj[0]; + user_bo = gem_to_qxl_bo(obj); + + if (plane->type == DRM_PLANE_TYPE_PRIMARY && + user_bo->is_dumb) { + qxl_update_dumb_head(qdev, new_state->crtc->index, + user_bo); + qxl_calc_dumb_shadow(qdev, &surf); + if (!qdev->dumb_shadow_bo || + qdev->dumb_shadow_bo->surf.width != surf.width || + qdev->dumb_shadow_bo->surf.height != surf.height) { + if (qdev->dumb_shadow_bo) { + drm_gem_object_put + (&qdev->dumb_shadow_bo->tbo.base); + qdev->dumb_shadow_bo = NULL; + } + qxl_bo_create(qdev, surf.height * surf.stride, + true, true, QXL_GEM_DOMAIN_SURFACE, 0, + &surf, &qdev->dumb_shadow_bo); + } + if (user_bo->shadow != qdev->dumb_shadow_bo) { + if (user_bo->shadow) { + drm_gem_object_put + (&user_bo->shadow->tbo.base); + user_bo->shadow = NULL; + } + drm_gem_object_get(&qdev->dumb_shadow_bo->tbo.base); + user_bo->shadow = qdev->dumb_shadow_bo; + } + } + + ret = qxl_bo_pin(user_bo); + if (ret) + return ret; + + return 0; +} + +static void qxl_plane_cleanup_fb(struct drm_plane *plane, + struct drm_plane_state *old_state) +{ + struct drm_gem_object *obj; + struct qxl_bo *user_bo; + + if (!old_state->fb) { + /* + * we never executed prepare_fb, so there's nothing to + * unpin. + */ + return; + } + + obj = old_state->fb->obj[0]; + user_bo = gem_to_qxl_bo(obj); + qxl_bo_unpin(user_bo); + + if (old_state->fb != plane->state->fb && user_bo->shadow) { + drm_gem_object_put(&user_bo->shadow->tbo.base); + user_bo->shadow = NULL; + } +} + +static const uint32_t qxl_cursor_plane_formats[] = { + DRM_FORMAT_ARGB8888, +}; + +static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = { + .atomic_update = qxl_cursor_atomic_update, + .atomic_disable = qxl_cursor_atomic_disable, + .prepare_fb = qxl_plane_prepare_fb, + .cleanup_fb = qxl_plane_cleanup_fb, +}; + +static const struct drm_plane_funcs qxl_cursor_plane_funcs = { + .update_plane = drm_atomic_helper_update_plane, + .disable_plane = drm_atomic_helper_disable_plane, + .destroy = drm_primary_helper_destroy, + .reset = drm_atomic_helper_plane_reset, + .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, +}; + +static const uint32_t qxl_primary_plane_formats[] = { + DRM_FORMAT_XRGB8888, + DRM_FORMAT_ARGB8888, +}; + +static const struct drm_plane_helper_funcs primary_helper_funcs = { + .atomic_check = qxl_primary_atomic_check, + .atomic_update = qxl_primary_atomic_update, + .atomic_disable = qxl_primary_atomic_disable, + .prepare_fb = qxl_plane_prepare_fb, + .cleanup_fb = qxl_plane_cleanup_fb, +}; + +static const struct drm_plane_funcs qxl_primary_plane_funcs = { + .update_plane = drm_atomic_helper_update_plane, + .disable_plane = drm_atomic_helper_disable_plane, + .destroy = drm_primary_helper_destroy, + .reset = drm_atomic_helper_plane_reset, + .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, +}; + +static struct drm_plane *qxl_create_plane(struct qxl_device *qdev, + unsigned int possible_crtcs, + enum drm_plane_type type) +{ + const struct drm_plane_helper_funcs *helper_funcs = NULL; + struct drm_plane *plane; + const struct drm_plane_funcs *funcs; + const uint32_t *formats; + int num_formats; + int err; + + if (type == DRM_PLANE_TYPE_PRIMARY) { + funcs = &qxl_primary_plane_funcs; + formats = qxl_primary_plane_formats; + num_formats = ARRAY_SIZE(qxl_primary_plane_formats); + helper_funcs = &primary_helper_funcs; + } else if (type == DRM_PLANE_TYPE_CURSOR) { + funcs = &qxl_cursor_plane_funcs; + formats = qxl_cursor_plane_formats; + helper_funcs = &qxl_cursor_helper_funcs; + num_formats = ARRAY_SIZE(qxl_cursor_plane_formats); + } else { + return ERR_PTR(-EINVAL); + } + + plane = kzalloc(sizeof(*plane), GFP_KERNEL); + if (!plane) + return ERR_PTR(-ENOMEM); + + err = drm_universal_plane_init(&qdev->ddev, plane, possible_crtcs, + funcs, formats, num_formats, + NULL, type, NULL); + if (err) + goto free_plane; + + drm_plane_helper_add(plane, helper_funcs); + + return plane; + +free_plane: + kfree(plane); + return ERR_PTR(-EINVAL); +} + +static int qdev_crtc_init(struct drm_device *dev, int crtc_id) +{ + struct qxl_crtc *qxl_crtc; + struct drm_plane *primary, *cursor; + struct qxl_device *qdev = to_qxl(dev); + int r; + + qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL); + if (!qxl_crtc) + return -ENOMEM; + + primary = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_PRIMARY); + if (IS_ERR(primary)) { + r = -ENOMEM; + goto free_mem; + } + + cursor = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_CURSOR); + if (IS_ERR(cursor)) { + r = -ENOMEM; + goto clean_primary; + } + + r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, cursor, + &qxl_crtc_funcs, NULL); + if (r) + goto clean_cursor; + + qxl_crtc->index = crtc_id; + drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs); + return 0; + +clean_cursor: + drm_plane_cleanup(cursor); + kfree(cursor); +clean_primary: + drm_plane_cleanup(primary); + kfree(primary); +free_mem: + kfree(qxl_crtc); + return r; +} + +static int qxl_conn_get_modes(struct drm_connector *connector) +{ + struct drm_device *dev = connector->dev; + struct qxl_device *qdev = to_qxl(dev); + struct qxl_output *output = drm_connector_to_qxl_output(connector); + unsigned int pwidth = 1024; + unsigned int pheight = 768; + int ret = 0; + + if (qdev->client_monitors_config) { + struct qxl_head *head; + head = &qdev->client_monitors_config->heads[output->index]; + if (head->width) + pwidth = head->width; + if (head->height) + pheight = head->height; + } + + ret += drm_add_modes_noedid(connector, 8192, 8192); + ret += qxl_add_extra_modes(connector); + ret += qxl_add_monitors_config_modes(connector); + drm_set_preferred_mode(connector, pwidth, pheight); + return ret; +} + +static enum drm_mode_status qxl_conn_mode_valid(struct drm_connector *connector, + struct drm_display_mode *mode) +{ + struct drm_device *ddev = connector->dev; + struct qxl_device *qdev = to_qxl(ddev); + + if (qxl_check_mode(qdev, mode->hdisplay, mode->vdisplay) != 0) + return MODE_BAD; + + return MODE_OK; +} + +static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector) +{ + struct qxl_output *qxl_output = + drm_connector_to_qxl_output(connector); + + DRM_DEBUG("\n"); + return &qxl_output->enc; +} + +static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = { + .get_modes = qxl_conn_get_modes, + .mode_valid = qxl_conn_mode_valid, + .best_encoder = qxl_best_encoder, +}; + +static enum drm_connector_status qxl_conn_detect( + struct drm_connector *connector, + bool force) +{ + struct qxl_output *output = + drm_connector_to_qxl_output(connector); + struct drm_device *ddev = connector->dev; + struct qxl_device *qdev = to_qxl(ddev); + bool connected = false; + + /* The first monitor is always connected */ + if (!qdev->client_monitors_config) { + if (output->index == 0) + connected = true; + } else + connected = qdev->client_monitors_config->count > output->index && + qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]); + + DRM_DEBUG("#%d connected: %d\n", output->index, connected); + + return connected ? connector_status_connected + : connector_status_disconnected; +} + +static void qxl_conn_destroy(struct drm_connector *connector) +{ + struct qxl_output *qxl_output = + drm_connector_to_qxl_output(connector); + + drm_connector_unregister(connector); + drm_connector_cleanup(connector); + kfree(qxl_output); +} + +static const struct drm_connector_funcs qxl_connector_funcs = { + .detect = qxl_conn_detect, + .fill_modes = drm_helper_probe_single_connector_modes, + .destroy = qxl_conn_destroy, + .reset = drm_atomic_helper_connector_reset, + .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, +}; + +static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev) +{ + if (qdev->hotplug_mode_update_property) + return 0; + + qdev->hotplug_mode_update_property = + drm_property_create_range(&qdev->ddev, DRM_MODE_PROP_IMMUTABLE, + "hotplug_mode_update", 0, 1); + + return 0; +} + +static int qdev_output_init(struct drm_device *dev, int num_output) +{ + struct qxl_device *qdev = to_qxl(dev); + struct qxl_output *qxl_output; + struct drm_connector *connector; + struct drm_encoder *encoder; + int ret; + + qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL); + if (!qxl_output) + return -ENOMEM; + + qxl_output->index = num_output; + + connector = &qxl_output->base; + encoder = &qxl_output->enc; + drm_connector_init(dev, &qxl_output->base, + &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL); + + ret = drm_simple_encoder_init(dev, &qxl_output->enc, + DRM_MODE_ENCODER_VIRTUAL); + if (ret) { + drm_err(dev, "drm_simple_encoder_init() failed, error %d\n", + ret); + goto err_drm_connector_cleanup; + } + + /* we get HPD via client monitors config */ + connector->polled = DRM_CONNECTOR_POLL_HPD; + encoder->possible_crtcs = 1 << num_output; + drm_connector_attach_encoder(&qxl_output->base, + &qxl_output->enc); + drm_connector_helper_add(connector, &qxl_connector_helper_funcs); + + drm_object_attach_property(&connector->base, + qdev->hotplug_mode_update_property, 0); + drm_object_attach_property(&connector->base, + dev->mode_config.suggested_x_property, 0); + drm_object_attach_property(&connector->base, + dev->mode_config.suggested_y_property, 0); + return 0; + +err_drm_connector_cleanup: + drm_connector_cleanup(&qxl_output->base); + kfree(qxl_output); + return ret; +} + +static struct drm_framebuffer * +qxl_user_framebuffer_create(struct drm_device *dev, + struct drm_file *file_priv, + const struct drm_mode_fb_cmd2 *mode_cmd) +{ + return drm_gem_fb_create_with_funcs(dev, file_priv, mode_cmd, + &qxl_fb_funcs); +} + +static const struct drm_mode_config_funcs qxl_mode_funcs = { + .fb_create = qxl_user_framebuffer_create, + .atomic_check = drm_atomic_helper_check, + .atomic_commit = drm_atomic_helper_commit, +}; + +int qxl_create_monitors_object(struct qxl_device *qdev) +{ + int ret; + struct drm_gem_object *gobj; + int monitors_config_size = sizeof(struct qxl_monitors_config) + + qxl_num_crtc * sizeof(struct qxl_head); + + ret = qxl_gem_object_create(qdev, monitors_config_size, 0, + QXL_GEM_DOMAIN_VRAM, + false, false, NULL, &gobj); + if (ret) { + DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret); + return -ENOMEM; + } + qdev->monitors_config_bo = gem_to_qxl_bo(gobj); + + ret = qxl_bo_pin(qdev->monitors_config_bo); + if (ret) + return ret; + + qxl_bo_kmap(qdev->monitors_config_bo, NULL); + + qdev->monitors_config = qdev->monitors_config_bo->kptr; + qdev->ram_header->monitors_config = + qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0); + + memset(qdev->monitors_config, 0, monitors_config_size); + qdev->dumb_heads = kcalloc(qxl_num_crtc, sizeof(qdev->dumb_heads[0]), + GFP_KERNEL); + if (!qdev->dumb_heads) { + qxl_destroy_monitors_object(qdev); + return -ENOMEM; + } + return 0; +} + +int qxl_destroy_monitors_object(struct qxl_device *qdev) +{ + int ret; + + qdev->monitors_config = NULL; + qdev->ram_header->monitors_config = 0; + + qxl_bo_kunmap(qdev->monitors_config_bo); + ret = qxl_bo_unpin(qdev->monitors_config_bo); + if (ret) + return ret; + + qxl_bo_unref(&qdev->monitors_config_bo); + return 0; +} + +int qxl_modeset_init(struct qxl_device *qdev) +{ + int i; + int ret; + + drm_mode_config_init(&qdev->ddev); + + ret = qxl_create_monitors_object(qdev); + if (ret) + return ret; + + qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs; + + /* modes will be validated against the framebuffer size */ + qdev->ddev.mode_config.min_width = 0; + qdev->ddev.mode_config.min_height = 0; + qdev->ddev.mode_config.max_width = 8192; + qdev->ddev.mode_config.max_height = 8192; + + qdev->ddev.mode_config.fb_base = qdev->vram_base; + + drm_mode_create_suggested_offset_properties(&qdev->ddev); + qxl_mode_create_hotplug_mode_update_property(qdev); + + for (i = 0 ; i < qxl_num_crtc; ++i) { + qdev_crtc_init(&qdev->ddev, i); + qdev_output_init(&qdev->ddev, i); + } + + qxl_display_read_client_monitors_config(qdev); + + drm_mode_config_reset(&qdev->ddev); + return 0; +} + +void qxl_modeset_fini(struct qxl_device *qdev) +{ + if (qdev->dumb_shadow_bo) { + drm_gem_object_put(&qdev->dumb_shadow_bo->tbo.base); + qdev->dumb_shadow_bo = NULL; + } + qxl_destroy_monitors_object(qdev); + drm_mode_config_cleanup(&qdev->ddev); +} |