linux/drivers/gpu/drm/qxl/qxl_display.c
YueHaibing fb8cd60c84 drm/qxl: remove set but not used variable 'bo_old'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/qxl/qxl_display.c: In function 'qxl_primary_atomic_update':
drivers/gpu/drm/qxl/qxl_display.c:538:17: warning:
 variable 'bo_old' set but not used [-Wunused-but-set-variable]

It's not used any more after 4979904c62 ("drm/qxl: use shadow bo directly")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190218085459.196470-1-yuehaibing@huawei.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-02-21 13:04:16 +01:00

1239 lines
33 KiB
C

/*
* 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 <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 "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;
int status, retries;
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(dev);
qxl_update_offset_props(qdev);
drm_modeset_unlock_all(dev);
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 = dev->dev_private;
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 = dev->dev_private;
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 = dev->dev_private;
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;
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)
{
struct drm_device *dev = crtc->dev;
struct drm_pending_vblank_event *event;
unsigned long flags;
if (crtc->state && crtc->state->event) {
event = crtc->state->event;
crtc->state->event = NULL;
spin_lock_irqsave(&dev->event_lock, flags);
drm_crtc_send_vblank_event(crtc, event);
spin_unlock_irqrestore(&dev->event_lock, flags);
}
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 = fb->dev->dev_private;
struct drm_clip_rect norect;
struct qxl_bo *qobj;
bool is_primary;
int inc = 1;
drm_modeset_lock_all(fb->dev);
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) {
drm_modeset_unlock_all(fb->dev);
return 0;
}
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);
drm_modeset_unlock_all(fb->dev);
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 = plane->dev->dev_private;
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 = dev->dev_private;
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_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
qxl_release_fence_buffer_objects(release);
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 = plane->dev->dev_private;
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 = plane->dev->dev_private;
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 = dev->dev_private;
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_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
qxl_release_fence_buffer_objects(release);
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 = plane->dev->dev_private;
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_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
qxl_release_fence_buffer_objects(release);
}
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 = plane->dev->dev_private;
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_unlocked
(&qdev->dumb_shadow_bo->gem_base);
qdev->dumb_shadow_bo = NULL;
}
qxl_bo_create(qdev, surf.height * surf.stride,
true, true, QXL_GEM_DOMAIN_SURFACE, &surf,
&qdev->dumb_shadow_bo);
}
if (user_bo->shadow != qdev->dumb_shadow_bo) {
if (user_bo->shadow) {
drm_gem_object_put_unlocked
(&user_bo->shadow->gem_base);
user_bo->shadow = NULL;
}
drm_gem_object_get(&qdev->dumb_shadow_bo->gem_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_unlocked(&user_bo->shadow->gem_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 = dev->dev_private;
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 = dev->dev_private;
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 = ddev->dev_private;
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_encoder_helper_funcs qxl_enc_helper_funcs = {
};
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 = ddev->dev_private;
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 void qxl_enc_destroy(struct drm_encoder *encoder)
{
drm_encoder_cleanup(encoder);
}
static const struct drm_encoder_funcs qxl_enc_funcs = {
.destroy = qxl_enc_destroy,
};
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 = dev->dev_private;
struct qxl_output *qxl_output;
struct drm_connector *connector;
struct drm_encoder *encoder;
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);
drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
DRM_MODE_ENCODER_VIRTUAL, NULL);
/* 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_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
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;
}
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)
{
qxl_destroy_monitors_object(qdev);
drm_mode_config_cleanup(&qdev->ddev);
}