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linuxdebug/drivers/gpu/drm/nouveau/nouveau_display.c

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/*
* 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 <acpi/video.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_probe_helper.h>
#include <drm/drm_vblank.h>
#include "nouveau_fbcon.h"
#include "nouveau_crtc.h"
#include "nouveau_gem.h"
#include "nouveau_connector.h"
#include "nv50_display.h"
#include <nvif/class.h>
#include <nvif/cl0046.h>
#include <nvif/event.h>
#include <dispnv50/crc.h>
int
nouveau_display_vblank_enable(struct drm_crtc *crtc)
{
struct nouveau_crtc *nv_crtc;
nv_crtc = nouveau_crtc(crtc);
nvif_notify_get(&nv_crtc->vblank);
return 0;
}
void
nouveau_display_vblank_disable(struct drm_crtc *crtc)
{
struct nouveau_crtc *nv_crtc;
nv_crtc = nouveau_crtc(crtc);
nvif_notify_put(&nv_crtc->vblank);
}
static inline int
calc(int blanks, int blanke, int total, int line)
{
if (blanke >= blanks) {
if (line >= blanks)
line -= total;
} else {
if (line >= blanks)
line -= total;
line -= blanke + 1;
}
return line;
}
static bool
nouveau_display_scanoutpos_head(struct drm_crtc *crtc, int *vpos, int *hpos,
ktime_t *stime, ktime_t *etime)
{
struct {
struct nv04_disp_mthd_v0 base;
struct nv04_disp_scanoutpos_v0 scan;
} args = {
.base.method = NV04_DISP_SCANOUTPOS,
.base.head = nouveau_crtc(crtc)->index,
};
struct nouveau_display *disp = nouveau_display(crtc->dev);
struct drm_vblank_crtc *vblank = &crtc->dev->vblank[drm_crtc_index(crtc)];
int retry = 20;
bool ret = false;
do {
ret = nvif_mthd(&disp->disp.object, 0, &args, sizeof(args));
if (ret != 0)
return false;
if (args.scan.vline) {
ret = true;
break;
}
if (retry) ndelay(vblank->linedur_ns);
} while (retry--);
*hpos = args.scan.hline;
*vpos = calc(args.scan.vblanks, args.scan.vblanke,
args.scan.vtotal, args.scan.vline);
if (stime) *stime = ns_to_ktime(args.scan.time[0]);
if (etime) *etime = ns_to_ktime(args.scan.time[1]);
return ret;
}
bool
nouveau_display_scanoutpos(struct drm_crtc *crtc,
bool in_vblank_irq, int *vpos, int *hpos,
ktime_t *stime, ktime_t *etime,
const struct drm_display_mode *mode)
{
return nouveau_display_scanoutpos_head(crtc, vpos, hpos,
stime, etime);
}
static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
.destroy = drm_gem_fb_destroy,
.create_handle = drm_gem_fb_create_handle,
};
static void
nouveau_decode_mod(struct nouveau_drm *drm,
uint64_t modifier,
uint32_t *tile_mode,
uint8_t *kind)
{
struct nouveau_display *disp = nouveau_display(drm->dev);
BUG_ON(!tile_mode || !kind);
if (modifier == DRM_FORMAT_MOD_LINEAR) {
/* tile_mode will not be used in this case */
*tile_mode = 0;
*kind = 0;
} else {
/*
* Extract the block height and kind from the corresponding
* modifier fields. See drm_fourcc.h for details.
*/
if ((modifier & (0xffull << 12)) == 0ull) {
/* Legacy modifier. Translate to this dev's 'kind.' */
modifier |= disp->format_modifiers[0] & (0xffull << 12);
}
*tile_mode = (uint32_t)(modifier & 0xF);
*kind = (uint8_t)((modifier >> 12) & 0xFF);
if (drm->client.device.info.chipset >= 0xc0)
*tile_mode <<= 4;
}
}
void
nouveau_framebuffer_get_layout(struct drm_framebuffer *fb,
uint32_t *tile_mode,
uint8_t *kind)
{
if (fb->flags & DRM_MODE_FB_MODIFIERS) {
struct nouveau_drm *drm = nouveau_drm(fb->dev);
nouveau_decode_mod(drm, fb->modifier, tile_mode, kind);
} else {
const struct nouveau_bo *nvbo = nouveau_gem_object(fb->obj[0]);
*tile_mode = nvbo->mode;
*kind = nvbo->kind;
}
}
static const u64 legacy_modifiers[] = {
DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(0),
DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(1),
DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(2),
DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(3),
DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(4),
DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(5),
DRM_FORMAT_MOD_INVALID
};
static int
nouveau_validate_decode_mod(struct nouveau_drm *drm,
uint64_t modifier,
uint32_t *tile_mode,
uint8_t *kind)
{
struct nouveau_display *disp = nouveau_display(drm->dev);
int mod;
if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
return -EINVAL;
}
BUG_ON(!disp->format_modifiers);
for (mod = 0;
(disp->format_modifiers[mod] != DRM_FORMAT_MOD_INVALID) &&
(disp->format_modifiers[mod] != modifier);
mod++);
if (disp->format_modifiers[mod] == DRM_FORMAT_MOD_INVALID) {
for (mod = 0;
(legacy_modifiers[mod] != DRM_FORMAT_MOD_INVALID) &&
(legacy_modifiers[mod] != modifier);
mod++);
if (legacy_modifiers[mod] == DRM_FORMAT_MOD_INVALID)
return -EINVAL;
}
nouveau_decode_mod(drm, modifier, tile_mode, kind);
return 0;
}
static inline uint32_t
nouveau_get_width_in_blocks(uint32_t stride)
{
/* GOBs per block in the x direction is always one, and GOBs are
* 64 bytes wide
*/
static const uint32_t log_block_width = 6;
return (stride + (1 << log_block_width) - 1) >> log_block_width;
}
static inline uint32_t
nouveau_get_height_in_blocks(struct nouveau_drm *drm,
uint32_t height,
uint32_t log_block_height_in_gobs)
{
uint32_t log_gob_height;
uint32_t log_block_height;
BUG_ON(drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA);
if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI)
log_gob_height = 2;
else
log_gob_height = 3;
log_block_height = log_block_height_in_gobs + log_gob_height;
return (height + (1 << log_block_height) - 1) >> log_block_height;
}
static int
nouveau_check_bl_size(struct nouveau_drm *drm, struct nouveau_bo *nvbo,
uint32_t offset, uint32_t stride, uint32_t h,
uint32_t tile_mode)
{
uint32_t gob_size, bw, bh;
uint64_t bl_size;
BUG_ON(drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA);
if (drm->client.device.info.chipset >= 0xc0) {
if (tile_mode & 0xF)
return -EINVAL;
tile_mode >>= 4;
}
if (tile_mode & 0xFFFFFFF0)
return -EINVAL;
if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI)
gob_size = 256;
else
gob_size = 512;
bw = nouveau_get_width_in_blocks(stride);
bh = nouveau_get_height_in_blocks(drm, h, tile_mode);
bl_size = bw * bh * (1 << tile_mode) * gob_size;
DRM_DEBUG_KMS("offset=%u stride=%u h=%u tile_mode=0x%02x bw=%u bh=%u gob_size=%u bl_size=%llu size=%zu\n",
offset, stride, h, tile_mode, bw, bh, gob_size, bl_size,
nvbo->bo.base.size);
if (bl_size + offset > nvbo->bo.base.size)
return -ERANGE;
return 0;
}
int
nouveau_framebuffer_new(struct drm_device *dev,
const struct drm_mode_fb_cmd2 *mode_cmd,
struct drm_gem_object *gem,
struct drm_framebuffer **pfb)
{
struct nouveau_drm *drm = nouveau_drm(dev);
struct nouveau_bo *nvbo = nouveau_gem_object(gem);
struct drm_framebuffer *fb;
const struct drm_format_info *info;
unsigned int height, i;
uint32_t tile_mode;
uint8_t kind;
int ret;
/* YUV overlays have special requirements pre-NV50 */
if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA &&
(mode_cmd->pixel_format == DRM_FORMAT_YUYV ||
mode_cmd->pixel_format == DRM_FORMAT_UYVY ||
mode_cmd->pixel_format == DRM_FORMAT_NV12 ||
mode_cmd->pixel_format == DRM_FORMAT_NV21) &&
(mode_cmd->pitches[0] & 0x3f || /* align 64 */
mode_cmd->pitches[0] >= 0x10000 || /* at most 64k pitch */
(mode_cmd->pitches[1] && /* pitches for planes must match */
mode_cmd->pitches[0] != mode_cmd->pitches[1]))) {
DRM_DEBUG_KMS("Unsuitable framebuffer: format: %p4cc; pitches: 0x%x\n 0x%x\n",
&mode_cmd->pixel_format,
mode_cmd->pitches[0], mode_cmd->pitches[1]);
return -EINVAL;
}
if (mode_cmd->flags & DRM_MODE_FB_MODIFIERS) {
if (nouveau_validate_decode_mod(drm, mode_cmd->modifier[0],
&tile_mode, &kind)) {
DRM_DEBUG_KMS("Unsupported modifier: 0x%llx\n",
mode_cmd->modifier[0]);
return -EINVAL;
}
} else {
tile_mode = nvbo->mode;
kind = nvbo->kind;
}
info = drm_get_format_info(dev, mode_cmd);
for (i = 0; i < info->num_planes; i++) {
height = drm_format_info_plane_height(info,
mode_cmd->height,
i);
if (kind) {
ret = nouveau_check_bl_size(drm, nvbo,
mode_cmd->offsets[i],
mode_cmd->pitches[i],
height, tile_mode);
if (ret)
return ret;
} else {
uint32_t size = mode_cmd->pitches[i] * height;
if (size + mode_cmd->offsets[i] > nvbo->bo.base.size)
return -ERANGE;
}
}
if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL)))
return -ENOMEM;
drm_helper_mode_fill_fb_struct(dev, fb, mode_cmd);
fb->obj[0] = gem;
ret = drm_framebuffer_init(dev, fb, &nouveau_framebuffer_funcs);
if (ret)
kfree(fb);
return ret;
}
struct drm_framebuffer *
nouveau_user_framebuffer_create(struct drm_device *dev,
struct drm_file *file_priv,
const struct drm_mode_fb_cmd2 *mode_cmd)
{
struct drm_framebuffer *fb;
struct drm_gem_object *gem;
int ret;
gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
if (!gem)
return ERR_PTR(-ENOENT);
ret = nouveau_framebuffer_new(dev, mode_cmd, gem, &fb);
if (ret == 0)
return fb;
drm_gem_object_put(gem);
return ERR_PTR(ret);
}
static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
.fb_create = nouveau_user_framebuffer_create,
.output_poll_changed = nouveau_fbcon_output_poll_changed,
};
struct nouveau_drm_prop_enum_list {
u8 gen_mask;
int type;
char *name;
};
static struct nouveau_drm_prop_enum_list underscan[] = {
{ 6, UNDERSCAN_AUTO, "auto" },
{ 6, UNDERSCAN_OFF, "off" },
{ 6, UNDERSCAN_ON, "on" },
{}
};
static struct nouveau_drm_prop_enum_list dither_mode[] = {
{ 7, DITHERING_MODE_AUTO, "auto" },
{ 7, DITHERING_MODE_OFF, "off" },
{ 1, DITHERING_MODE_ON, "on" },
{ 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
{ 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
{ 4, DITHERING_MODE_TEMPORAL, "temporal" },
{}
};
static struct nouveau_drm_prop_enum_list dither_depth[] = {
{ 6, DITHERING_DEPTH_AUTO, "auto" },
{ 6, DITHERING_DEPTH_6BPC, "6 bpc" },
{ 6, DITHERING_DEPTH_8BPC, "8 bpc" },
{}
};
#define PROP_ENUM(p,gen,n,list) do { \
struct nouveau_drm_prop_enum_list *l = (list); \
int c = 0; \
while (l->gen_mask) { \
if (l->gen_mask & (1 << (gen))) \
c++; \
l++; \
} \
if (c) { \
p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c); \
l = (list); \
while (p && l->gen_mask) { \
if (l->gen_mask & (1 << (gen))) { \
drm_property_add_enum(p, l->type, l->name); \
} \
l++; \
} \
} \
} while(0)
void
nouveau_display_hpd_resume(struct drm_device *dev)
{
struct nouveau_drm *drm = nouveau_drm(dev);
mutex_lock(&drm->hpd_lock);
drm->hpd_pending = ~0;
mutex_unlock(&drm->hpd_lock);
schedule_work(&drm->hpd_work);
}
static void
nouveau_display_hpd_work(struct work_struct *work)
{
struct nouveau_drm *drm = container_of(work, typeof(*drm), hpd_work);
struct drm_device *dev = drm->dev;
struct drm_connector *connector;
struct drm_connector_list_iter conn_iter;
u32 pending;
bool changed = false;
pm_runtime_get_sync(dev->dev);
mutex_lock(&drm->hpd_lock);
pending = drm->hpd_pending;
drm->hpd_pending = 0;
mutex_unlock(&drm->hpd_lock);
/* Nothing to do, exit early without updating the last busy counter */
if (!pending)
goto noop;
mutex_lock(&dev->mode_config.mutex);
drm_connector_list_iter_begin(dev, &conn_iter);
nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
enum drm_connector_status old_status = connector->status;
u64 old_epoch_counter = connector->epoch_counter;
if (!(pending & drm_connector_mask(connector)))
continue;
connector->status = drm_helper_probe_detect(connector, NULL,
false);
if (old_epoch_counter == connector->epoch_counter)
continue;
changed = true;
drm_dbg_kms(dev, "[CONNECTOR:%d:%s] status updated from %s to %s (epoch counter %llu->%llu)\n",
connector->base.id, connector->name,
drm_get_connector_status_name(old_status),
drm_get_connector_status_name(connector->status),
old_epoch_counter, connector->epoch_counter);
}
drm_connector_list_iter_end(&conn_iter);
mutex_unlock(&dev->mode_config.mutex);
if (changed)
drm_kms_helper_hotplug_event(dev);
pm_runtime_mark_last_busy(drm->dev->dev);
noop:
pm_runtime_put_autosuspend(dev->dev);
}
#ifdef CONFIG_ACPI
static int
nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val,
void *data)
{
struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb);
struct acpi_bus_event *info = data;
int ret;
if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) {
if (info->type == ACPI_VIDEO_NOTIFY_PROBE) {
ret = pm_runtime_get(drm->dev->dev);
if (ret == 1 || ret == -EACCES) {
/* If the GPU is already awake, or in a state
* where we can't wake it up, it can handle
* it's own hotplug events.
*/
pm_runtime_put_autosuspend(drm->dev->dev);
} else if (ret == 0 || ret == -EINPROGRESS) {
/* We've started resuming the GPU already, so
* it will handle scheduling a full reprobe
* itself
*/
NV_DEBUG(drm, "ACPI requested connector reprobe\n");
pm_runtime_put_noidle(drm->dev->dev);
} else {
NV_WARN(drm, "Dropped ACPI reprobe event due to RPM error: %d\n",
ret);
}
/* acpi-video should not generate keypresses for this */
return NOTIFY_BAD;
}
}
return NOTIFY_DONE;
}
#endif
int
nouveau_display_init(struct drm_device *dev, bool resume, bool runtime)
{
struct nouveau_display *disp = nouveau_display(dev);
struct drm_connector *connector;
struct drm_connector_list_iter conn_iter;
int ret;
/*
* Enable hotplug interrupts (done as early as possible, since we need
* them for MST)
*/
drm_connector_list_iter_begin(dev, &conn_iter);
nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
struct nouveau_connector *conn = nouveau_connector(connector);
nvif_notify_get(&conn->hpd);
}
drm_connector_list_iter_end(&conn_iter);
ret = disp->init(dev, resume, runtime);
if (ret)
return ret;
/* enable connector detection and polling for connectors without HPD
* support
*/
drm_kms_helper_poll_enable(dev);
return ret;
}
void
nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime)
{
struct nouveau_display *disp = nouveau_display(dev);
struct nouveau_drm *drm = nouveau_drm(dev);
struct drm_connector *connector;
struct drm_connector_list_iter conn_iter;
if (!suspend) {
if (drm_drv_uses_atomic_modeset(dev))
drm_atomic_helper_shutdown(dev);
else
drm_helper_force_disable_all(dev);
}
/* disable hotplug interrupts */
drm_connector_list_iter_begin(dev, &conn_iter);
nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
struct nouveau_connector *conn = nouveau_connector(connector);
nvif_notify_put(&conn->hpd);
}
drm_connector_list_iter_end(&conn_iter);
if (!runtime)
cancel_work_sync(&drm->hpd_work);
drm_kms_helper_poll_disable(dev);
disp->fini(dev, runtime, suspend);
}
static void
nouveau_display_create_properties(struct drm_device *dev)
{
struct nouveau_display *disp = nouveau_display(dev);
int gen;
if (disp->disp.object.oclass < NV50_DISP)
gen = 0;
else
if (disp->disp.object.oclass < GF110_DISP)
gen = 1;
else
gen = 2;
PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
disp->underscan_hborder_property =
drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
disp->underscan_vborder_property =
drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
if (gen < 1)
return;
/* -90..+90 */
disp->vibrant_hue_property =
drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
/* -100..+100 */
disp->color_vibrance_property =
drm_property_create_range(dev, 0, "color vibrance", 0, 200);
}
int
nouveau_display_create(struct drm_device *dev)
{
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvkm_device *device = nvxx_device(&drm->client.device);
struct nouveau_display *disp;
int ret;
disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
if (!disp)
return -ENOMEM;
drm_mode_config_init(dev);
drm_mode_create_scaling_mode_property(dev);
drm_mode_create_dvi_i_properties(dev);
dev->mode_config.funcs = &nouveau_mode_config_funcs;
dev->mode_config.fb_base = device->func->resource_addr(device, 1);
dev->mode_config.min_width = 0;
dev->mode_config.min_height = 0;
if (drm->client.device.info.family < NV_DEVICE_INFO_V0_CELSIUS) {
dev->mode_config.max_width = 2048;
dev->mode_config.max_height = 2048;
} else
if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
dev->mode_config.max_width = 4096;
dev->mode_config.max_height = 4096;
} else
if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI) {
dev->mode_config.max_width = 8192;
dev->mode_config.max_height = 8192;
} else {
dev->mode_config.max_width = 16384;
dev->mode_config.max_height = 16384;
}
dev->mode_config.preferred_depth = 24;
dev->mode_config.prefer_shadow = 1;
if (drm->client.device.info.chipset < 0x11)
dev->mode_config.async_page_flip = false;
else
dev->mode_config.async_page_flip = true;
drm_kms_helper_poll_init(dev);
drm_kms_helper_poll_disable(dev);
if (nouveau_modeset != 2 && drm->vbios.dcb.entries) {
ret = nvif_disp_ctor(&drm->client.device, "kmsDisp", 0,
&disp->disp);
if (ret == 0) {
nouveau_display_create_properties(dev);
if (disp->disp.object.oclass < NV50_DISP) {
dev->mode_config.fb_modifiers_not_supported = true;
ret = nv04_display_create(dev);
} else {
ret = nv50_display_create(dev);
}
}
} else {
ret = 0;
}
if (ret)
goto disp_create_err;
drm_mode_config_reset(dev);
if (dev->mode_config.num_crtc) {
ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
if (ret)
goto vblank_err;
if (disp->disp.object.oclass >= NV50_DISP)
nv50_crc_init(dev);
}
INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work);
mutex_init(&drm->hpd_lock);
#ifdef CONFIG_ACPI
drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy;
register_acpi_notifier(&drm->acpi_nb);
#endif
return 0;
vblank_err:
disp->dtor(dev);
disp_create_err:
drm_kms_helper_poll_fini(dev);
drm_mode_config_cleanup(dev);
return ret;
}
void
nouveau_display_destroy(struct drm_device *dev)
{
struct nouveau_display *disp = nouveau_display(dev);
struct nouveau_drm *drm = nouveau_drm(dev);
#ifdef CONFIG_ACPI
unregister_acpi_notifier(&drm->acpi_nb);
#endif
drm_kms_helper_poll_fini(dev);
drm_mode_config_cleanup(dev);
if (disp->dtor)
disp->dtor(dev);
nvif_disp_dtor(&disp->disp);
nouveau_drm(dev)->display = NULL;
mutex_destroy(&drm->hpd_lock);
kfree(disp);
}
int
nouveau_display_suspend(struct drm_device *dev, bool runtime)
{
struct nouveau_display *disp = nouveau_display(dev);
if (drm_drv_uses_atomic_modeset(dev)) {
if (!runtime) {
disp->suspend = drm_atomic_helper_suspend(dev);
if (IS_ERR(disp->suspend)) {
int ret = PTR_ERR(disp->suspend);
disp->suspend = NULL;
return ret;
}
}
}
nouveau_display_fini(dev, true, runtime);
return 0;
}
void
nouveau_display_resume(struct drm_device *dev, bool runtime)
{
struct nouveau_display *disp = nouveau_display(dev);
nouveau_display_init(dev, true, runtime);
if (drm_drv_uses_atomic_modeset(dev)) {
if (disp->suspend) {
drm_atomic_helper_resume(dev, disp->suspend);
disp->suspend = NULL;
}
return;
}
}
int
nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
struct drm_mode_create_dumb *args)
{
struct nouveau_cli *cli = nouveau_cli(file_priv);
struct nouveau_bo *bo;
uint32_t domain;
int ret;
args->pitch = roundup(args->width * (args->bpp / 8), 256);
args->size = args->pitch * args->height;
args->size = roundup(args->size, PAGE_SIZE);
/* Use VRAM if there is any ; otherwise fallback to system memory */
if (nouveau_drm(dev)->client.device.info.ram_size != 0)
domain = NOUVEAU_GEM_DOMAIN_VRAM;
else
domain = NOUVEAU_GEM_DOMAIN_GART;
ret = nouveau_gem_new(cli, args->size, 0, domain, 0, 0, &bo);
if (ret)
return ret;
ret = drm_gem_handle_create(file_priv, &bo->bo.base, &args->handle);
drm_gem_object_put(&bo->bo.base);
return ret;
}
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