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ubuntu-linux-kernel/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/drmP.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_crtc_helper.h>
#include <nvif/class.h>
#include "nouveau_fbcon.h"
#include "dispnv04/hw.h"
#include "nouveau_crtc.h"
#include "nouveau_dma.h"
#include "nouveau_gem.h"
#include "nouveau_connector.h"
#include "nv50_display.h"
#include "nouveau_fence.h"
#include <nvif/cl0046.h>
#include <nvif/event.h>
static int
nouveau_display_vblank_handler(struct nvif_notify *notify)
{
struct nouveau_crtc *nv_crtc =
container_of(notify, typeof(*nv_crtc), vblank);
drm_crtc_handle_vblank(&nv_crtc->base);
return NVIF_NOTIFY_KEEP;
}
int
nouveau_display_vblank_enable(struct drm_device *dev, unsigned int pipe)
{
struct drm_crtc *crtc;
struct nouveau_crtc *nv_crtc;
crtc = drm_crtc_from_index(dev, pipe);
if (!crtc)
return -EINVAL;
nv_crtc = nouveau_crtc(crtc);
nvif_notify_get(&nv_crtc->vblank);
return 0;
}
void
nouveau_display_vblank_disable(struct drm_device *dev, unsigned int pipe)
{
struct drm_crtc *crtc;
struct nouveau_crtc *nv_crtc;
crtc = drm_crtc_from_index(dev, pipe);
if (!crtc)
return;
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, 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_device *dev, unsigned int pipe,
bool in_vblank_irq, int *vpos, int *hpos,
ktime_t *stime, ktime_t *etime,
const struct drm_display_mode *mode)
{
struct drm_crtc *crtc;
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
if (nouveau_crtc(crtc)->index == pipe) {
return nouveau_display_scanoutpos_head(crtc, vpos, hpos,
stime, etime);
}
}
return false;
}
static void
nouveau_display_vblank_fini(struct drm_device *dev)
{
struct drm_crtc *crtc;
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
nvif_notify_fini(&nv_crtc->vblank);
}
}
static int
nouveau_display_vblank_init(struct drm_device *dev)
{
struct nouveau_display *disp = nouveau_display(dev);
struct drm_crtc *crtc;
int ret;
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
ret = nvif_notify_init(&disp->disp,
nouveau_display_vblank_handler, false,
NV04_DISP_NTFY_VBLANK,
&(struct nvif_notify_head_req_v0) {
.head = nv_crtc->index,
},
sizeof(struct nvif_notify_head_req_v0),
sizeof(struct nvif_notify_head_rep_v0),
&nv_crtc->vblank);
if (ret) {
nouveau_display_vblank_fini(dev);
return ret;
}
}
ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
if (ret) {
nouveau_display_vblank_fini(dev);
return ret;
}
return 0;
}
static void
nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
{
struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
if (fb->nvbo)
drm_gem_object_unreference_unlocked(&fb->nvbo->gem);
drm_framebuffer_cleanup(drm_fb);
kfree(fb);
}
static int
nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
struct drm_file *file_priv,
unsigned int *handle)
{
struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
return drm_gem_handle_create(file_priv, &fb->nvbo->gem, handle);
}
static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
.destroy = nouveau_user_framebuffer_destroy,
.create_handle = nouveau_user_framebuffer_create_handle,
};
int
nouveau_framebuffer_new(struct drm_device *dev,
const struct drm_mode_fb_cmd2 *mode_cmd,
struct nouveau_bo *nvbo,
struct nouveau_framebuffer **pfb)
{
struct nouveau_drm *drm = nouveau_drm(dev);
struct nouveau_framebuffer *fb;
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]))) {
struct drm_format_name_buf format_name;
DRM_DEBUG_KMS("Unsuitable framebuffer: format: %s; pitches: 0x%x\n 0x%x\n",
drm_get_format_name(mode_cmd->pixel_format,
&format_name),
mode_cmd->pitches[0],
mode_cmd->pitches[1]);
return -EINVAL;
}
if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL)))
return -ENOMEM;
drm_helper_mode_fill_fb_struct(dev, &fb->base, mode_cmd);
fb->nvbo = nvbo;
ret = drm_framebuffer_init(dev, &fb->base, &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 nouveau_framebuffer *fb;
struct nouveau_bo *nvbo;
struct drm_gem_object *gem;
int ret;
gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
if (!gem)
return ERR_PTR(-ENOENT);
nvbo = nouveau_gem_object(gem);
ret = nouveau_framebuffer_new(dev, mode_cmd, nvbo, &fb);
if (ret == 0)
return &fb->base;
drm_gem_object_unreference_unlocked(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); \
c = 0; \
while (p && l->gen_mask) { \
if (l->gen_mask & (1 << (gen))) { \
drm_property_add_enum(p, c, l->type, l->name); \
c++; \
} \
l++; \
} \
} \
} while(0)
static void
nouveau_display_hpd_work(struct work_struct *work)
{
struct nouveau_drm *drm = container_of(work, typeof(*drm), hpd_work);
pm_runtime_get_sync(drm->dev->dev);
drm_helper_hpd_irq_event(drm->dev);
/* enable polling for external displays */
drm_kms_helper_poll_enable(drm->dev);
pm_runtime_mark_last_busy(drm->dev->dev);
pm_runtime_put_sync(drm->dev->dev);
}
#ifdef CONFIG_ACPI
/*
* Hans de Goede: This define belongs in acpi/video.h, I've submitted a patch
* to the acpi subsys to move it there from drivers/acpi/acpi_video.c .
* This should be dropped once that is merged.
*/
#ifndef ACPI_VIDEO_NOTIFY_PROBE
#define ACPI_VIDEO_NOTIFY_PROBE 0x81
#endif
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;
if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) {
if (info->type == ACPI_VIDEO_NOTIFY_PROBE) {
/*
* This may be the only indication we receive of a
* connector hotplug on a runtime suspended GPU,
* schedule hpd_work to check.
*/
schedule_work(&drm->hpd_work);
/* acpi-video should not generate keypresses for this */
return NOTIFY_BAD;
}
}
return NOTIFY_DONE;
}
#endif
int
nouveau_display_init(struct drm_device *dev)
{
struct nouveau_display *disp = nouveau_display(dev);
struct nouveau_drm *drm = nouveau_drm(dev);
struct drm_connector *connector;
int ret;
ret = disp->init(dev);
if (ret)
return ret;
/* enable hotplug interrupts */
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
struct nouveau_connector *conn = nouveau_connector(connector);
nvif_notify_get(&conn->hpd);
}
/* enable flip completion events */
nvif_notify_get(&drm->flip);
return ret;
}
void
nouveau_display_fini(struct drm_device *dev, bool suspend)
{
struct nouveau_display *disp = nouveau_display(dev);
struct nouveau_drm *drm = nouveau_drm(dev);
struct drm_connector *connector;
if (!suspend) {
if (drm_drv_uses_atomic_modeset(dev))
drm_atomic_helper_shutdown(dev);
else
drm_crtc_force_disable_all(dev);
}
/* disable flip completion events */
nvif_notify_put(&drm->flip);
/* disable hotplug interrupts */
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
struct nouveau_connector *conn = nouveau_connector(connector);
nvif_notify_put(&conn->hpd);
}
drm_kms_helper_poll_disable(dev);
disp->fini(dev);
}
static void
nouveau_display_create_properties(struct drm_device *dev)
{
struct nouveau_display *disp = nouveau_display(dev);
int gen;
if (disp->disp.oclass < NV50_DISP)
gen = 0;
else
if (disp->disp.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) {
static const u16 oclass[] = {
GP102_DISP,
GP100_DISP,
GM200_DISP,
GM107_DISP,
GK110_DISP,
GK104_DISP,
GF110_DISP,
GT214_DISP,
GT206_DISP,
GT200_DISP,
G82_DISP,
NV50_DISP,
NV04_DISP,
};
int i;
for (i = 0, ret = -ENODEV; ret && i < ARRAY_SIZE(oclass); i++) {
ret = nvif_object_init(&drm->client.device.object, 0,
oclass[i], NULL, 0, &disp->disp);
}
if (ret == 0) {
nouveau_display_create_properties(dev);
if (disp->disp.oclass < NV50_DISP)
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 = nouveau_display_vblank_init(dev);
if (ret)
goto vblank_err;
}
nouveau_backlight_init(dev);
INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work);
#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);
#ifdef CONFIG_ACPI
unregister_acpi_notifier(&nouveau_drm(dev)->acpi_nb);
#endif
nouveau_backlight_exit(dev);
nouveau_display_vblank_fini(dev);
drm_kms_helper_poll_fini(dev);
drm_mode_config_cleanup(dev);
if (disp->dtor)
disp->dtor(dev);
nvif_object_fini(&disp->disp);
nouveau_drm(dev)->display = NULL;
kfree(disp);
}
int
nouveau_display_suspend(struct drm_device *dev, bool runtime)
{
struct nouveau_display *disp = nouveau_display(dev);
struct drm_crtc *crtc;
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);
return 0;
}
nouveau_display_fini(dev, true);
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct nouveau_framebuffer *nouveau_fb;
nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
if (!nouveau_fb || !nouveau_fb->nvbo)
continue;
nouveau_bo_unpin(nouveau_fb->nvbo);
}
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
if (nv_crtc->cursor.nvbo) {
if (nv_crtc->cursor.set_offset)
nouveau_bo_unmap(nv_crtc->cursor.nvbo);
nouveau_bo_unpin(nv_crtc->cursor.nvbo);
}
}
return 0;
}
void
nouveau_display_resume(struct drm_device *dev, bool runtime)
{
struct nouveau_display *disp = nouveau_display(dev);
struct nouveau_drm *drm = nouveau_drm(dev);
struct drm_crtc *crtc;
int ret;
if (drm_drv_uses_atomic_modeset(dev)) {
nouveau_display_init(dev);
if (disp->suspend) {
drm_atomic_helper_resume(dev, disp->suspend);
disp->suspend = NULL;
}
return;
}
/* re-pin fb/cursors */
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct nouveau_framebuffer *nouveau_fb;
nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
if (!nouveau_fb || !nouveau_fb->nvbo)
continue;
ret = nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM, true);
if (ret)
NV_ERROR(drm, "Could not pin framebuffer\n");
}
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
if (!nv_crtc->cursor.nvbo)
continue;
ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM, true);
if (!ret && nv_crtc->cursor.set_offset)
ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
if (ret)
NV_ERROR(drm, "Could not pin/map cursor.\n");
}
nouveau_display_init(dev);
/* Force CLUT to get re-loaded during modeset */
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
nv_crtc->lut.depth = 0;
}
/* This should ensure we don't hit a locking problem when someone
* wakes us up via a connector. We should never go into suspend
* while the display is on anyways.
*/
if (runtime)
return;
drm_helper_resume_force_mode(dev);
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
if (!nv_crtc->cursor.nvbo)
continue;
if (nv_crtc->cursor.set_offset)
nv_crtc->cursor.set_offset(nv_crtc, nv_crtc->cursor.nvbo->bo.offset);
nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
nv_crtc->cursor_saved_y);
}
}
static int
nouveau_page_flip_emit(struct nouveau_channel *chan,
struct nouveau_bo *old_bo,
struct nouveau_bo *new_bo,
struct nouveau_page_flip_state *s,
struct nouveau_fence **pfence)
{
struct nouveau_fence_chan *fctx = chan->fence;
struct nouveau_drm *drm = chan->drm;
struct drm_device *dev = drm->dev;
unsigned long flags;
int ret;
/* Queue it to the pending list */
spin_lock_irqsave(&dev->event_lock, flags);
list_add_tail(&s->head, &fctx->flip);
spin_unlock_irqrestore(&dev->event_lock, flags);
/* Synchronize with the old framebuffer */
ret = nouveau_fence_sync(old_bo, chan, false, false);
if (ret)
goto fail;
/* Emit the pageflip */
ret = RING_SPACE(chan, 2);
if (ret)
goto fail;
BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
OUT_RING (chan, 0x00000000);
FIRE_RING (chan);
ret = nouveau_fence_new(chan, false, pfence);
if (ret)
goto fail;
return 0;
fail:
spin_lock_irqsave(&dev->event_lock, flags);
list_del(&s->head);
spin_unlock_irqrestore(&dev->event_lock, flags);
return ret;
}
int
nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
struct drm_pending_vblank_event *event, u32 flags,
struct drm_modeset_acquire_ctx *ctx)
{
const int swap_interval = (flags & DRM_MODE_PAGE_FLIP_ASYNC) ? 0 : 1;
struct drm_device *dev = crtc->dev;
struct nouveau_drm *drm = nouveau_drm(dev);
struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->primary->fb)->nvbo;
struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
struct nouveau_page_flip_state *s;
struct nouveau_channel *chan;
struct nouveau_cli *cli;
struct nouveau_fence *fence;
struct nv04_display *dispnv04 = nv04_display(dev);
int head = nouveau_crtc(crtc)->index;
int ret;
chan = drm->channel;
if (!chan)
return -ENODEV;
cli = (void *)chan->user.client;
s = kzalloc(sizeof(*s), GFP_KERNEL);
if (!s)
return -ENOMEM;
if (new_bo != old_bo) {
ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM, true);
if (ret)
goto fail_free;
}
mutex_lock(&cli->mutex);
ret = ttm_bo_reserve(&new_bo->bo, true, false, NULL);
if (ret)
goto fail_unpin;
/* synchronise rendering channel with the kernel's channel */
ret = nouveau_fence_sync(new_bo, chan, false, true);
if (ret) {
ttm_bo_unreserve(&new_bo->bo);
goto fail_unpin;
}
if (new_bo != old_bo) {
ttm_bo_unreserve(&new_bo->bo);
ret = ttm_bo_reserve(&old_bo->bo, true, false, NULL);
if (ret)
goto fail_unpin;
}
/* Initialize a page flip struct */
*s = (struct nouveau_page_flip_state)
{ { }, event, crtc, fb->format->cpp[0] * 8, fb->pitches[0],
new_bo->bo.offset };
/* Keep vblanks on during flip, for the target crtc of this flip */
drm_crtc_vblank_get(crtc);
/* Emit a page flip */
if (swap_interval) {
ret = RING_SPACE(chan, 8);
if (ret)
goto fail_unreserve;
BEGIN_NV04(chan, NvSubImageBlit, 0x012c, 1);
OUT_RING (chan, 0);
BEGIN_NV04(chan, NvSubImageBlit, 0x0134, 1);
OUT_RING (chan, head);
BEGIN_NV04(chan, NvSubImageBlit, 0x0100, 1);
OUT_RING (chan, 0);
BEGIN_NV04(chan, NvSubImageBlit, 0x0130, 1);
OUT_RING (chan, 0);
}
nouveau_bo_ref(new_bo, &dispnv04->image[head]);
ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
if (ret)
goto fail_unreserve;
mutex_unlock(&cli->mutex);
/* Update the crtc struct and cleanup */
crtc->primary->fb = fb;
nouveau_bo_fence(old_bo, fence, false);
ttm_bo_unreserve(&old_bo->bo);
if (old_bo != new_bo)
nouveau_bo_unpin(old_bo);
nouveau_fence_unref(&fence);
return 0;
fail_unreserve:
drm_crtc_vblank_put(crtc);
ttm_bo_unreserve(&old_bo->bo);
fail_unpin:
mutex_unlock(&cli->mutex);
if (old_bo != new_bo)
nouveau_bo_unpin(new_bo);
fail_free:
kfree(s);
return ret;
}
int
nouveau_finish_page_flip(struct nouveau_channel *chan,
struct nouveau_page_flip_state *ps)
{
struct nouveau_fence_chan *fctx = chan->fence;
struct nouveau_drm *drm = chan->drm;
struct drm_device *dev = drm->dev;
struct nouveau_page_flip_state *s;
unsigned long flags;
spin_lock_irqsave(&dev->event_lock, flags);
if (list_empty(&fctx->flip)) {
NV_ERROR(drm, "unexpected pageflip\n");
spin_unlock_irqrestore(&dev->event_lock, flags);
return -EINVAL;
}
s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head);
if (s->event) {
drm_crtc_arm_vblank_event(s->crtc, s->event);
} else {
/* Give up ownership of vblank for page-flipped crtc */
drm_crtc_vblank_put(s->crtc);
}
list_del(&s->head);
if (ps)
*ps = *s;
kfree(s);
spin_unlock_irqrestore(&dev->event_lock, flags);
return 0;
}
int
nouveau_flip_complete(struct nvif_notify *notify)
{
struct nouveau_drm *drm = container_of(notify, typeof(*drm), flip);
struct nouveau_channel *chan = drm->channel;
struct nouveau_page_flip_state state;
if (!nouveau_finish_page_flip(chan, &state)) {
nv_set_crtc_base(drm->dev, drm_crtc_index(state.crtc),
state.offset + state.crtc->y *
state.pitch + state.crtc->x *
state.bpp / 8);
}
return NVIF_NOTIFY_KEEP;
}
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->gem, &args->handle);
drm_gem_object_unreference_unlocked(&bo->gem);
return ret;
}
int
nouveau_display_dumb_map_offset(struct drm_file *file_priv,
struct drm_device *dev,
uint32_t handle, uint64_t *poffset)
{
struct drm_gem_object *gem;
gem = drm_gem_object_lookup(file_priv, handle);
if (gem) {
struct nouveau_bo *bo = nouveau_gem_object(gem);
*poffset = drm_vma_node_offset_addr(&bo->bo.vma_node);
drm_gem_object_unreference_unlocked(gem);
return 0;
}
return -ENOENT;
}
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