From a1011d63ffb5cc4f41bf0f4622ee3f1493d419d9 Mon Sep 17 00:00:00 2001 From: marha Date: Sat, 29 Nov 2014 12:40:08 +0100 Subject: fontconfig libX11 libxcb libxcb/xcb-proto mesa xserver xkbcomp xkeyboard-config git update 29 Nov 2014 xserver commit c52a2b1ebad56820af932dfbc871701a8b04fd9c libxcb commit bbca7b82f803fa13fd30a2891ec06f2a213a28c2 libxcb/xcb-proto commit 691d2b97e5989d6d7006304d81bd8fa128477ca1 xkeyboard-config commit b664d7fb8aab9b0f834dd9c81d273c7809561b34 libX11 commit f3831dde6972e4da9e018c6a5f4013d8756a5e78 xkbcomp commit 1e8ee9d0aad072f04186df84752f5636340574e0 fontconfig commit b732bf057f4b3ec3bac539803005e9c42d056b2a mesa commit 67c498086d0858a94d53ebb6921cfda847250368 --- .../hw/xfree86/drivers/modesetting/Makefile.am | 6 +- xorg-server/hw/xfree86/drivers/modesetting/dri2.c | 863 +++++++++++++++++++++ .../hw/xfree86/drivers/modesetting/driver.c | 29 +- .../hw/xfree86/drivers/modesetting/driver.h | 44 ++ .../xfree86/drivers/modesetting/drmmode_display.c | 25 +- .../xfree86/drivers/modesetting/drmmode_display.h | 31 +- .../hw/xfree86/drivers/modesetting/vblank.c | 383 +++++++++ 7 files changed, 1373 insertions(+), 8 deletions(-) create mode 100644 xorg-server/hw/xfree86/drivers/modesetting/dri2.c create mode 100644 xorg-server/hw/xfree86/drivers/modesetting/vblank.c (limited to 'xorg-server/hw/xfree86/drivers/modesetting') diff --git a/xorg-server/hw/xfree86/drivers/modesetting/Makefile.am b/xorg-server/hw/xfree86/drivers/modesetting/Makefile.am index e6834e283..5b08600c1 100644 --- a/xorg-server/hw/xfree86/drivers/modesetting/Makefile.am +++ b/xorg-server/hw/xfree86/drivers/modesetting/Makefile.am @@ -30,6 +30,7 @@ AM_CPPFLAGS = \ $(XORG_INCS) \ -I$(top_srcdir)/glamor \ -I$(srcdir)/../../ddc \ + -I$(srcdir)/../../dri2 \ -I$(srcdir)/../../i2c \ -I$(srcdir)/../../modes \ -I$(srcdir)/../../parser \ @@ -42,10 +43,13 @@ modesetting_drv_la_LIBADD = $(UDEV_LIBS) $(DRM_LIBS) modesetting_drv_ladir = @moduledir@/drivers modesetting_drv_la_SOURCES = \ + dri2.c \ driver.c \ driver.h \ drmmode_display.c \ - drmmode_display.h + drmmode_display.h \ + vblank.c \ + $(NULL) drivermandir = $(DRIVER_MAN_DIR) driverman_PRE = modesetting.man diff --git a/xorg-server/hw/xfree86/drivers/modesetting/dri2.c b/xorg-server/hw/xfree86/drivers/modesetting/dri2.c new file mode 100644 index 000000000..6c88060b0 --- /dev/null +++ b/xorg-server/hw/xfree86/drivers/modesetting/dri2.c @@ -0,0 +1,863 @@ +/* + * Copyright © 2013 Intel Corporation + * Copyright © 2014 Broadcom + * + * 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 AUTHORS OR COPYRIGHT HOLDERS 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. + */ + +/** + * @file dri2.c + * + * Implements generic support for DRI2 on KMS, using glamor pixmaps + * for color buffer management (no support for other aux buffers), and + * the DRM vblank ioctls. + * + * This doesn't implement pageflipping yet. + */ + +#ifdef HAVE_DIX_CONFIG_H +#include "dix-config.h" +#endif + +#include +#include "list.h" +#include "xf86.h" +#include "driver.h" +#include "dri2.h" + +#ifdef GLAMOR +#define GLAMOR_FOR_XORG 1 +#include "glamor.h" + +enum ms_dri2_frame_event_type { + MS_DRI2_QUEUE_SWAP, + MS_DRI2_WAIT_MSC, +}; + +typedef struct ms_dri2_frame_event { + ScreenPtr screen; + + DrawablePtr drawable; + ClientPtr client; + enum ms_dri2_frame_event_type type; + int frame; + xf86CrtcPtr crtc; + + struct xorg_list drawable_resource, client_resource; + + /* for swaps & flips only */ + DRI2SwapEventPtr event_complete; + void *event_data; + DRI2BufferPtr front; + DRI2BufferPtr back; +} ms_dri2_frame_event_rec, *ms_dri2_frame_event_ptr; + +typedef struct { + int refcnt; + PixmapPtr pixmap; +} ms_dri2_buffer_private_rec, *ms_dri2_buffer_private_ptr; + +static DevPrivateKeyRec ms_dri2_client_key; +static RESTYPE frame_event_client_type, frame_event_drawable_type; +static int ms_dri2_server_generation; + +struct ms_dri2_resource { + XID id; + RESTYPE type; + struct xorg_list list; +}; + +static struct ms_dri2_resource * +ms_get_resource(XID id, RESTYPE type) +{ + struct ms_dri2_resource *resource; + void *ptr; + + ptr = NULL; + dixLookupResourceByType(&ptr, id, type, NULL, DixWriteAccess); + if (ptr) + return ptr; + + resource = malloc(sizeof(*resource)); + if (resource == NULL) + return NULL; + + if (!AddResource(id, type, resource)) { + free(resource); + return NULL; + } + + resource->id = id; + resource->type = type; + xorg_list_init(&resource->list); + return resource; +} + +static inline PixmapPtr +get_drawable_pixmap(DrawablePtr drawable) +{ + ScreenPtr screen = drawable->pScreen; + + if (drawable->type == DRAWABLE_PIXMAP) + return (PixmapPtr) drawable; + else + return screen->GetWindowPixmap((WindowPtr) drawable); +} + +static PixmapPtr +get_front_buffer(DrawablePtr drawable) +{ + PixmapPtr pixmap; + + pixmap = get_drawable_pixmap(drawable); + pixmap->refcnt++; + + return pixmap; +} + +static DRI2Buffer2Ptr +ms_dri2_create_buffer(DrawablePtr drawable, unsigned int attachment, + unsigned int format) +{ + ScreenPtr screen = drawable->pScreen; + ScrnInfoPtr scrn = xf86ScreenToScrn(screen); + DRI2Buffer2Ptr buffer; + PixmapPtr pixmap; + uint32_t size; + uint16_t pitch; + ms_dri2_buffer_private_ptr private; + + buffer = calloc(1, sizeof *buffer); + if (buffer == NULL) + return NULL; + + private = calloc(1, sizeof(*private)); + if (private == NULL) { + free(buffer); + return NULL; + } + + pixmap = NULL; + if (attachment == DRI2BufferFrontLeft) + pixmap = get_front_buffer(drawable); + + if (pixmap == NULL) { + int pixmap_width = drawable->width; + int pixmap_height = drawable->height; + int pixmap_cpp = (format != 0) ? format : drawable->depth; + + /* Assume that non-color-buffers require special + * device-specific handling. Mesa currently makes no requests + * for non-color aux buffers. + */ + switch (attachment) { + case DRI2BufferAccum: + case DRI2BufferBackLeft: + case DRI2BufferBackRight: + case DRI2BufferFakeFrontLeft: + case DRI2BufferFakeFrontRight: + case DRI2BufferFrontLeft: + case DRI2BufferFrontRight: + break; + + case DRI2BufferStencil: + case DRI2BufferDepth: + case DRI2BufferDepthStencil: + case DRI2BufferHiz: + default: + xf86DrvMsg(scrn->scrnIndex, X_WARNING, + "Request for DRI2 buffer attachment %d unsupported\n", + attachment); + free(private); + free(buffer); + return NULL; + } + + pixmap = screen->CreatePixmap(screen, + pixmap_width, + pixmap_height, + pixmap_cpp, + 0); + if (pixmap == NULL) { + if (pixmap) + screen->DestroyPixmap(pixmap); + free(private); + free(buffer); + return NULL; + } + } + + buffer->attachment = attachment; + buffer->cpp = pixmap->drawable.bitsPerPixel / 8; + buffer->format = format; + /* The buffer's flags field is unused by the client drivers in + * Mesa currently. + */ + buffer->flags = 0; + + buffer->name = glamor_name_from_pixmap(pixmap, &pitch, &size); + buffer->pitch = pitch; + if (buffer->name == -1) { + xf86DrvMsg(scrn->scrnIndex, X_ERROR, + "Failed to get DRI2 name for pixmap\n"); + screen->DestroyPixmap(pixmap); + free(private); + free(buffer); + return NULL; + } + + buffer->driverPrivate = private; + private->refcnt = 1; + private->pixmap = pixmap; + + return buffer; +} + +static void +ms_dri2_reference_buffer(DRI2Buffer2Ptr buffer) +{ + if (buffer) { + ms_dri2_buffer_private_ptr private = buffer->driverPrivate; + private->refcnt++; + } +} + +static void ms_dri2_destroy_buffer(DrawablePtr drawable, DRI2Buffer2Ptr buffer) +{ + if (!buffer) + return; + + if (buffer->driverPrivate) { + ms_dri2_buffer_private_ptr private = buffer->driverPrivate; + if (--private->refcnt == 0) { + ScreenPtr screen = private->pixmap->drawable.pScreen; + screen->DestroyPixmap(private->pixmap); + free(private); + free(buffer); + } + } else { + free(buffer); + } +} + +static void +ms_dri2_copy_region(DrawablePtr drawable, RegionPtr pRegion, + DRI2BufferPtr destBuffer, DRI2BufferPtr sourceBuffer) +{ + ms_dri2_buffer_private_ptr src_priv = sourceBuffer->driverPrivate; + ms_dri2_buffer_private_ptr dst_priv = destBuffer->driverPrivate; + PixmapPtr src_pixmap = src_priv->pixmap; + PixmapPtr dst_pixmap = dst_priv->pixmap; + ScreenPtr screen = drawable->pScreen; + DrawablePtr src = (sourceBuffer->attachment == DRI2BufferFrontLeft) + ? drawable : &src_pixmap->drawable; + DrawablePtr dst = (destBuffer->attachment == DRI2BufferFrontLeft) + ? drawable : &dst_pixmap->drawable; + RegionPtr pCopyClip; + GCPtr gc; + + gc = GetScratchGC(dst->depth, screen); + if (!gc) + return; + + pCopyClip = REGION_CREATE(screen, NULL, 0); + REGION_COPY(screen, pCopyClip, pRegion); + (*gc->funcs->ChangeClip) (gc, CT_REGION, pCopyClip, 0); + ValidateGC(dst, gc); + + /* It's important that this copy gets submitted before the direct + * rendering client submits rendering for the next frame, but we + * don't actually need to submit right now. The client will wait + * for the DRI2CopyRegion reply or the swap buffer event before + * rendering, and we'll hit the flush callback chain before those + * messages are sent. We submit our batch buffers from the flush + * callback chain so we know that will happen before the client + * tries to render again. + */ + gc->ops->CopyArea(src, dst, gc, + 0, 0, + drawable->width, drawable->height, + 0, 0); + + FreeScratchGC(gc); +} + +static uint64_t +gettime_us(void) +{ + struct timespec tv; + + if (clock_gettime(CLOCK_MONOTONIC, &tv)) + return 0; + + return (uint64_t)tv.tv_sec * 1000000 + tv.tv_nsec / 1000; +} + +/** + * Get current frame count and frame count timestamp, based on drawable's + * crtc. + */ +static int +ms_dri2_get_msc(DrawablePtr draw, CARD64 *ust, CARD64 *msc) +{ + int ret; + xf86CrtcPtr crtc = ms_dri2_crtc_covering_drawable(draw); + + /* Drawable not displayed, make up a *monotonic* value */ + if (crtc == NULL) { + *ust = gettime_us(); + *msc = 0; + return TRUE; + } + + ret = ms_get_crtc_ust_msc(crtc, ust, msc); + + if (ret) + return FALSE; + + return TRUE; +} + +static XID +get_client_id(ClientPtr client) +{ + XID *ptr = dixGetPrivateAddr(&client->devPrivates, &ms_dri2_client_key); + if (*ptr == 0) + *ptr = FakeClientID(client->index); + return *ptr; +} + +/* + * Hook this frame event into the server resource + * database so we can clean it up if the drawable or + * client exits while the swap is pending + */ +static Bool +ms_dri2_add_frame_event(ms_dri2_frame_event_ptr info) +{ + struct ms_dri2_resource *resource; + + resource = ms_get_resource(get_client_id(info->client), + frame_event_client_type); + if (resource == NULL) + return FALSE; + + xorg_list_add(&info->client_resource, &resource->list); + + resource = ms_get_resource(info->drawable->id, frame_event_drawable_type); + if (resource == NULL) { + xorg_list_del(&info->client_resource); + return FALSE; + } + + xorg_list_add(&info->drawable_resource, &resource->list); + + return TRUE; +} + +static void +ms_dri2_del_frame_event(ms_dri2_frame_event_rec *info) +{ + xorg_list_del(&info->client_resource); + xorg_list_del(&info->drawable_resource); + + if (info->front) + ms_dri2_destroy_buffer(NULL, info->front); + if (info->back) + ms_dri2_destroy_buffer(NULL, info->back); + + free(info); +} + +static void +ms_dri2_blit_swap(DrawablePtr drawable, + DRI2BufferPtr dst, + DRI2BufferPtr src) +{ + BoxRec box; + RegionRec region; + + box.x1 = 0; + box.y1 = 0; + box.x2 = drawable->width; + box.y2 = drawable->height; + REGION_INIT(pScreen, ®ion, &box, 0); + + ms_dri2_copy_region(drawable, ®ion, dst, src); +} + +static void +ms_dri2_frame_event_handler(uint64_t msc, + uint64_t usec, + void *data) +{ + ms_dri2_frame_event_ptr frame_info = data; + DrawablePtr drawable = frame_info->drawable; + ScreenPtr screen = frame_info->screen; + ScrnInfoPtr scrn = xf86ScreenToScrn(screen); + uint32_t tv_sec = usec / 1000000; + uint32_t tv_usec = usec % 1000000; + + if (!drawable) { + ms_dri2_del_frame_event(frame_info); + return; + } + + switch (frame_info->type) { + case MS_DRI2_QUEUE_SWAP: + ms_dri2_blit_swap(drawable, frame_info->front, frame_info->back); + DRI2SwapComplete(frame_info->client, drawable, msc, tv_sec, tv_usec, + DRI2_BLIT_COMPLETE, + frame_info->client ? frame_info->event_complete : NULL, + frame_info->event_data); + break; + + case MS_DRI2_WAIT_MSC: + if (frame_info->client) + DRI2WaitMSCComplete(frame_info->client, drawable, + msc, tv_sec, tv_usec); + break; + + default: + xf86DrvMsg(scrn->scrnIndex, X_WARNING, + "%s: unknown vblank event (type %d) received\n", __func__, + frame_info->type); + break; + } + + ms_dri2_del_frame_event(frame_info); +} + +static void +ms_dri2_frame_event_abort(void *data) +{ + ms_dri2_frame_event_ptr frame_info = data; + + ms_dri2_del_frame_event(frame_info); +} + +/** + * Request a DRM event when the requested conditions will be satisfied. + * + * We need to handle the event and ask the server to wake up the client when + * we receive it. + */ +static int +ms_dri2_schedule_wait_msc(ClientPtr client, DrawablePtr draw, CARD64 target_msc, + CARD64 divisor, CARD64 remainder) +{ + ScreenPtr screen = draw->pScreen; + ScrnInfoPtr scrn = xf86ScreenToScrn(screen); + modesettingPtr ms = modesettingPTR(scrn); + ms_dri2_frame_event_ptr wait_info; + drmVBlank vbl; + int ret; + xf86CrtcPtr crtc = ms_dri2_crtc_covering_drawable(draw); + drmmode_crtc_private_ptr drmmode_crtc; + CARD64 current_msc, current_ust, request_msc; + uint32_t seq; + + /* Drawable not visible, return immediately */ + if (!crtc) + goto out_complete; + drmmode_crtc = crtc->driver_private; + + wait_info = calloc(1, sizeof(*wait_info)); + if (!wait_info) + goto out_complete; + + wait_info->screen = screen; + wait_info->drawable = draw; + wait_info->client = client; + wait_info->type = MS_DRI2_WAIT_MSC; + + if (!ms_dri2_add_frame_event(wait_info)) { + free(wait_info); + wait_info = NULL; + goto out_complete; + } + + /* Get current count */ + ret = ms_get_crtc_ust_msc(crtc, ¤t_ust, ¤t_msc); + + /* + * If divisor is zero, or current_msc is smaller than target_msc, + * we just need to make sure target_msc passes before waking up the + * client. + */ + if (divisor == 0 || current_msc < target_msc) { + /* If target_msc already reached or passed, set it to + * current_msc to ensure we return a reasonable value back + * to the caller. This keeps the client from continually + * sending us MSC targets from the past by forcibly updating + * their count on this call. + */ + seq = ms_drm_queue_alloc(crtc, wait_info, + ms_dri2_frame_event_handler, + ms_dri2_frame_event_abort); + if (!seq) + goto out_free; + + if (current_msc >= target_msc) + target_msc = current_msc; + vbl.request.type = (DRM_VBLANK_ABSOLUTE | + DRM_VBLANK_EVENT | + drmmode_crtc->vblank_pipe); + vbl.request.sequence = ms_crtc_msc_to_kernel_msc(crtc, target_msc); + vbl.request.signal = (unsigned long)seq; + + ret = drmWaitVBlank(ms->fd, &vbl); + if (ret) { + static int limit = 5; + if (limit) { + xf86DrvMsg(scrn->scrnIndex, X_WARNING, + "%s:%d get vblank counter failed: %s\n", + __FUNCTION__, __LINE__, + strerror(errno)); + limit--; + } + goto out_free; + } + + wait_info->frame = ms_kernel_msc_to_crtc_msc(crtc, vbl.reply.sequence); + DRI2BlockClient(client, draw); + return TRUE; + } + + /* + * If we get here, target_msc has already passed or we don't have one, + * so we queue an event that will satisfy the divisor/remainder equation. + */ + vbl.request.type = + DRM_VBLANK_ABSOLUTE | DRM_VBLANK_EVENT | drmmode_crtc->vblank_pipe; + + request_msc = current_msc - (current_msc % divisor) + + remainder; + /* + * If calculated remainder is larger than requested remainder, + * it means we've passed the last point where + * seq % divisor == remainder, so we need to wait for the next time + * that will happen. + */ + if ((current_msc % divisor) >= remainder) + request_msc += divisor; + + seq = ms_drm_queue_alloc(crtc, wait_info, + ms_dri2_frame_event_handler, + ms_dri2_frame_event_abort); + if (!seq) + goto out_free; + + vbl.request.sequence = ms_crtc_msc_to_kernel_msc(crtc, request_msc); + vbl.request.signal = (unsigned long)seq; + + ret = drmWaitVBlank(ms->fd, &vbl); + if (ret) { + static int limit = 5; + if (limit) { + xf86DrvMsg(scrn->scrnIndex, X_WARNING, + "%s:%d get vblank counter failed: %s\n", + __FUNCTION__, __LINE__, + strerror(errno)); + limit--; + } + goto out_free; + } + + wait_info->frame = ms_kernel_msc_to_crtc_msc(crtc, vbl.reply.sequence); + DRI2BlockClient(client, draw); + + return TRUE; + + out_free: + ms_dri2_del_frame_event(wait_info); + out_complete: + DRI2WaitMSCComplete(client, draw, target_msc, 0, 0); + return TRUE; +} + +/** + * ScheduleSwap is responsible for requesting a DRM vblank event for + * the appropriate frame, or executing the swap immediately if it + * doesn't need to wait. + * + * When the swap is complete, the driver should call into the server so it + * can send any swap complete events that have been requested. + */ +static int +ms_dri2_schedule_swap(ClientPtr client, DrawablePtr draw, + DRI2BufferPtr front, DRI2BufferPtr back, + CARD64 *target_msc, CARD64 divisor, + CARD64 remainder, DRI2SwapEventPtr func, void *data) +{ + ScreenPtr screen = draw->pScreen; + ScrnInfoPtr scrn = xf86ScreenToScrn(screen); + modesettingPtr ms = modesettingPTR(scrn); + drmVBlank vbl; + int ret; + xf86CrtcPtr crtc = ms_dri2_crtc_covering_drawable(draw); + drmmode_crtc_private_ptr drmmode_crtc; + ms_dri2_frame_event_ptr frame_info = NULL; + uint64_t current_msc, current_ust; + uint64_t request_msc; + uint32_t seq; + + /* Drawable not displayed... just complete the swap */ + if (!crtc) + goto blit_fallback; + drmmode_crtc = crtc->driver_private; + + frame_info = calloc(1, sizeof(*frame_info)); + if (!frame_info) + goto blit_fallback; + + frame_info->screen = screen; + frame_info->drawable = draw; + frame_info->client = client; + frame_info->event_complete = func; + frame_info->event_data = data; + frame_info->front = front; + frame_info->back = back; + frame_info->crtc = crtc; + frame_info->type = MS_DRI2_QUEUE_SWAP; + + if (!ms_dri2_add_frame_event(frame_info)) { + free(frame_info); + frame_info = NULL; + goto blit_fallback; + } + + ms_dri2_reference_buffer(front); + ms_dri2_reference_buffer(back); + + ret = ms_get_crtc_ust_msc(crtc, ¤t_ust, ¤t_msc); + + /* + * If divisor is zero, or current_msc is smaller than target_msc + * we just need to make sure target_msc passes before initiating + * the swap. + */ + if (divisor == 0 || current_msc < *target_msc) { + /* We need to use DRM_VBLANK_NEXTONMISS to avoid unreliable + * timestamping later on. + */ + vbl.request.type = (DRM_VBLANK_ABSOLUTE | + DRM_VBLANK_NEXTONMISS | + DRM_VBLANK_EVENT | + drmmode_crtc->vblank_pipe); + + /* If target_msc already reached or passed, set it to + * current_msc to ensure we return a reasonable value back + * to the caller. This makes swap_interval logic more robust. + */ + if (current_msc >= *target_msc) + *target_msc = current_msc; + + seq = ms_drm_queue_alloc(crtc, frame_info, + ms_dri2_frame_event_handler, + ms_dri2_frame_event_abort); + if (!seq) + goto blit_fallback; + + vbl.request.sequence = ms_crtc_msc_to_kernel_msc(crtc, *target_msc); + vbl.request.signal = (unsigned long)seq; + + ret = drmWaitVBlank(ms->fd, &vbl); + if (ret) { + xf86DrvMsg(scrn->scrnIndex, X_WARNING, + "divisor 0 get vblank counter failed: %s\n", + strerror(errno)); + goto blit_fallback; + } + + *target_msc = ms_kernel_msc_to_crtc_msc(crtc, vbl.reply.sequence); + frame_info->frame = *target_msc; + + return TRUE; + } + + /* + * If we get here, target_msc has already passed or we don't have one, + * and we need to queue an event that will satisfy the divisor/remainder + * equation. + */ + vbl.request.type = (DRM_VBLANK_ABSOLUTE | + DRM_VBLANK_NEXTONMISS | + DRM_VBLANK_EVENT | + drmmode_crtc->vblank_pipe); + + request_msc = current_msc - (current_msc % divisor) + + remainder; + + /* + * If the calculated deadline vbl.request.sequence is smaller than + * or equal to current_msc, it means we've passed the last point + * when effective onset frame seq could satisfy + * seq % divisor == remainder, so we need to wait for the next time + * this will happen. + + * This comparison takes the DRM_VBLANK_NEXTONMISS delay into account. + */ + if (request_msc <= current_msc) + request_msc += divisor; + + + seq = ms_drm_queue_alloc(crtc, frame_info, + ms_dri2_frame_event_handler, + ms_dri2_frame_event_abort); + if (!seq) + goto blit_fallback; + + vbl.request.sequence = ms_crtc_msc_to_kernel_msc(crtc, request_msc); + vbl.request.signal = (unsigned long)seq; + + ret = drmWaitVBlank(ms->fd, &vbl); + if (ret) { + xf86DrvMsg(scrn->scrnIndex, X_WARNING, + "final get vblank counter failed: %s\n", + strerror(errno)); + goto blit_fallback; + } + + *target_msc = ms_kernel_msc_to_crtc_msc(crtc, vbl.reply.sequence); + frame_info->frame = *target_msc; + + return TRUE; + + blit_fallback: + ms_dri2_blit_swap(draw, front, back); + DRI2SwapComplete(client, draw, 0, 0, 0, DRI2_BLIT_COMPLETE, func, data); + if (frame_info) + ms_dri2_del_frame_event(frame_info); + *target_msc = 0; /* offscreen, so zero out target vblank count */ + return TRUE; +} + +static int +ms_dri2_frame_event_client_gone(void *data, XID id) +{ + struct ms_dri2_resource *resource = data; + + while (!xorg_list_is_empty(&resource->list)) { + ms_dri2_frame_event_ptr info = + xorg_list_first_entry(&resource->list, + ms_dri2_frame_event_rec, + client_resource); + + xorg_list_del(&info->client_resource); + info->client = NULL; + } + free(resource); + + return Success; +} + +static int +ms_dri2_frame_event_drawable_gone(void *data, XID id) +{ + struct ms_dri2_resource *resource = data; + + while (!xorg_list_is_empty(&resource->list)) { + ms_dri2_frame_event_ptr info = + xorg_list_first_entry(&resource->list, + ms_dri2_frame_event_rec, + drawable_resource); + + xorg_list_del(&info->drawable_resource); + info->drawable = NULL; + } + free(resource); + + return Success; +} + +static Bool +ms_dri2_register_frame_event_resource_types(void) +{ + frame_event_client_type = + CreateNewResourceType(ms_dri2_frame_event_client_gone, + "Frame Event Client"); + if (!frame_event_client_type) + return FALSE; + + frame_event_drawable_type = + CreateNewResourceType(ms_dri2_frame_event_drawable_gone, + "Frame Event Drawable"); + if (!frame_event_drawable_type) + return FALSE; + + return TRUE; +} + +Bool +ms_dri2_screen_init(ScreenPtr screen) +{ + ScrnInfoPtr scrn = xf86ScreenToScrn(screen); + modesettingPtr ms = modesettingPTR(scrn); + DRI2InfoRec info; + + if (!glamor_supports_pixmap_import_export(screen)) { + xf86DrvMsg(scrn->scrnIndex, X_WARNING, + "DRI2: glamor lacks support for pixmap import/export\n"); + } + + if (!xf86LoaderCheckSymbol("DRI2Version")) + return FALSE; + + if (!dixRegisterPrivateKey(&ms_dri2_client_key, + PRIVATE_CLIENT, sizeof(XID))) + return FALSE; + + if (serverGeneration != ms_dri2_server_generation) { + ms_dri2_server_generation = serverGeneration; + if (!ms_dri2_register_frame_event_resource_types()) { + xf86DrvMsg(scrn->scrnIndex, X_WARNING, + "Cannot register DRI2 frame event resources\n"); + return FALSE; + } + } + + memset(&info, '\0', sizeof(info)); + info.fd = ms->fd; + info.driverName = NULL; /* Compat field, unused. */ + info.deviceName = drmGetDeviceNameFromFd(ms->fd); + + info.version = 4; + info.CreateBuffer = ms_dri2_create_buffer; + info.DestroyBuffer = ms_dri2_destroy_buffer; + info.CopyRegion = ms_dri2_copy_region; + info.ScheduleSwap = ms_dri2_schedule_swap; + info.GetMSC = ms_dri2_get_msc; + info.ScheduleWaitMSC = ms_dri2_schedule_wait_msc; + + /* These two will be filled in by dri2.c */ + info.numDrivers = 0; + info.driverNames = NULL; + + return DRI2ScreenInit(screen, &info); +} + +void +ms_dri2_close_screen(ScreenPtr screen) +{ + DRI2CloseScreen(screen); +} + +#endif /* GLAMOR */ diff --git a/xorg-server/hw/xfree86/drivers/modesetting/driver.c b/xorg-server/hw/xfree86/drivers/modesetting/driver.c index c62147a0f..592f2469b 100644 --- a/xorg-server/hw/xfree86/drivers/modesetting/driver.c +++ b/xorg-server/hw/xfree86/drivers/modesetting/driver.c @@ -25,7 +25,7 @@ * * * Original Author: Alan Hourihane - * Rewrite: Dave Airlie + * Rewrite: Dave Airlie * */ @@ -788,7 +788,9 @@ PreInit(ScrnInfoPtr pScrn, int flags) try_enable_glamor(pScrn); - if (!ms->glamor) { + if (ms->glamor) { + xf86LoadSubModule(pScrn, "dri2"); + } else { Bool prefer_shadow = TRUE; ret = drmGetCap(ms->fd, DRM_CAP_DUMB_PREFER_SHADOW, &value); @@ -1107,6 +1109,21 @@ ScreenInit(ScreenPtr pScreen, int argc, char **argv) if (serverGeneration == 1) xf86ShowUnusedOptions(pScrn->scrnIndex, pScrn->options); + if (!ms_vblank_screen_init(pScreen)) { + xf86DrvMsg(pScrn->scrnIndex, X_ERROR, + "Failed to initialize vblank support.\n"); + return FALSE; + } + +#ifdef GLAMOR + if (ms->glamor) { + if (!ms_dri2_screen_init(pScreen)) { + xf86DrvMsg(pScrn->scrnIndex, X_ERROR, + "Failed to initialize the DRI2 extension.\n"); + } + } +#endif + return EnterVT(pScrn); } @@ -1172,6 +1189,14 @@ CloseScreen(ScreenPtr pScreen) ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen); modesettingPtr ms = modesettingPTR(pScrn); +#ifdef GLAMOR + if (ms->glamor) { + ms_dri2_close_screen(pScreen); + } +#endif + + ms_vblank_close_screen(pScreen); + if (ms->damage) { DamageUnregister(ms->damage); DamageDestroy(ms->damage); diff --git a/xorg-server/hw/xfree86/drivers/modesetting/driver.h b/xorg-server/hw/xfree86/drivers/modesetting/driver.h index 35f24193a..9eda1c4da 100644 --- a/xorg-server/hw/xfree86/drivers/modesetting/driver.h +++ b/xorg-server/hw/xfree86/drivers/modesetting/driver.h @@ -30,6 +30,7 @@ #include #include #include +#include #include #include "drmmode_display.h" @@ -42,6 +43,26 @@ typedef struct { ScrnInfoPtr pScrn_2; } EntRec, *EntPtr; +typedef void (*ms_drm_handler_proc)(uint64_t frame, + uint64_t usec, + void *data); + +typedef void (*ms_drm_abort_proc)(void *data); + +/** + * A tracked handler for an event that will hopefully be generated by + * the kernel, and what to do when it is encountered. + */ +struct ms_drm_queue { + struct xorg_list list; + xf86CrtcPtr crtc; + uint32_t seq; + void *data; + ScrnInfoPtr scrn; + ms_drm_handler_proc handler; + ms_drm_abort_proc abort; +}; + typedef struct _modesettingRec { int fd; @@ -70,6 +91,8 @@ typedef struct _modesettingRec { drmmode_rec drmmode; + drmEventContext event_context; + DamagePtr damage; Bool dirty_enabled; @@ -78,3 +101,24 @@ typedef struct _modesettingRec { } modesettingRec, *modesettingPtr; #define modesettingPTR(p) ((modesettingPtr)((p)->driverPrivate)) + +uint32_t ms_drm_queue_alloc(xf86CrtcPtr crtc, + void *data, + ms_drm_handler_proc handler, + ms_drm_abort_proc abort); + +xf86CrtcPtr ms_dri2_crtc_covering_drawable(DrawablePtr pDraw); +xf86CrtcPtr ms_covering_crtc(ScrnInfoPtr scrn, BoxPtr box, + xf86CrtcPtr desired, BoxPtr crtc_box_ret); + +int ms_get_crtc_ust_msc(xf86CrtcPtr crtc, CARD64 *ust, CARD64 *msc); + +uint32_t ms_crtc_msc_to_kernel_msc(xf86CrtcPtr crtc, uint64_t expect); +uint64_t ms_kernel_msc_to_crtc_msc(xf86CrtcPtr crtc, uint32_t sequence); + + +Bool ms_dri2_screen_init(ScreenPtr screen); +void ms_dri2_close_screen(ScreenPtr screen); + +Bool ms_vblank_screen_init(ScreenPtr screen); +void ms_vblank_close_screen(ScreenPtr screen); diff --git a/xorg-server/hw/xfree86/drivers/modesetting/drmmode_display.c b/xorg-server/hw/xfree86/drivers/modesetting/drmmode_display.c index d959837ae..ef9009e98 100644 --- a/xorg-server/hw/xfree86/drivers/modesetting/drmmode_display.c +++ b/xorg-server/hw/xfree86/drivers/modesetting/drmmode_display.c @@ -116,7 +116,7 @@ dumb_bo_unmap(int fd, struct dumb_bo *bo) } #endif -static int +int dumb_bo_destroy(int fd, struct dumb_bo *bo) { struct drm_mode_destroy_dumb arg; @@ -137,8 +137,8 @@ dumb_bo_destroy(int fd, struct dumb_bo *bo) return 0; } -static struct dumb_bo * -dumb_get_bo_from_handle(int fd, int handle, int pitch, int size) +struct dumb_bo * +dumb_get_bo_from_fd(int fd, int handle, int pitch, int size) { struct dumb_bo *bo; int ret; @@ -164,7 +164,7 @@ drmmode_SetSlaveBO(PixmapPtr ppix, msPixmapPrivPtr ppriv = msGetPixmapPriv(drmmode, ppix); ppriv->backing_bo = - dumb_get_bo_from_handle(drmmode->fd, fd_handle, pitch, size); + dumb_get_bo_from_fd(drmmode->fd, fd_handle, pitch, size); if (!ppriv->backing_bo) return FALSE; @@ -582,6 +582,17 @@ static const xf86CrtcFuncsRec drmmode_crtc_funcs = { .shadow_create = drmmode_shadow_create, }; +static uint32_t +drmmode_crtc_vblank_pipe(int crtc_id) +{ + if (crtc_id > 1) + return crtc_id << DRM_VBLANK_HIGH_CRTC_SHIFT; + else if (crtc_id > 0) + return DRM_VBLANK_SECONDARY; + else + return 0; +} + static void drmmode_crtc_init(ScrnInfoPtr pScrn, drmmode_ptr drmmode, int num) { @@ -596,6 +607,7 @@ drmmode_crtc_init(ScrnInfoPtr pScrn, drmmode_ptr drmmode, int num) drmmode_crtc->mode_crtc = drmModeGetCrtc(drmmode->fd, drmmode->mode_res->crtcs[num]); drmmode_crtc->drmmode = drmmode; + drmmode_crtc->vblank_pipe = drmmode_crtc_vblank_pipe(num); crtc->driver_private = drmmode_crtc; } @@ -1183,6 +1195,11 @@ drmmode_xf86crtc_resize(ScrnInfoPtr scrn, int width, int height) xf86DrvMsg(scrn->scrnIndex, X_INFO, "Allocate new frame buffer %dx%d stride\n", width, height); + if (drmmode->triple_buffer_pixmap) { + screen->DestroyPixmap(drmmode->triple_buffer_pixmap); + drmmode->triple_buffer_pixmap = NULL; + } + old_width = scrn->virtualX; old_height = scrn->virtualY; old_pitch = drmmode->front_bo->pitch; diff --git a/xorg-server/hw/xfree86/drivers/modesetting/drmmode_display.h b/xorg-server/hw/xfree86/drivers/modesetting/drmmode_display.h index 438743b01..987608c55 100644 --- a/xorg-server/hw/xfree86/drivers/modesetting/drmmode_display.h +++ b/xorg-server/hw/xfree86/drivers/modesetting/drmmode_display.h @@ -43,6 +43,7 @@ struct dumb_bo { typedef struct { int fd; unsigned fb_id; + unsigned old_fb_id; drmModeResPtr mode_res; drmModeFBPtr mode_fb; int cpp; @@ -58,17 +59,42 @@ typedef struct { Bool shadow_enable; void *shadow_fb; + /** + * A screen-sized pixmap when we're doing triple-buffered DRI2 + * pageflipping. + * + * One is shared between all drawables that flip to the front + * buffer, and it only gets reallocated when root pixmap size + * changes. + */ + PixmapPtr triple_buffer_pixmap; + + /** The GEM name for triple_buffer_pixmap */ + uint32_t triple_buffer_name; + DevPrivateKeyRec pixmapPrivateKeyRec; } drmmode_rec, *drmmode_ptr; typedef struct { drmmode_ptr drmmode; drmModeCrtcPtr mode_crtc; - int hw_id; + uint32_t vblank_pipe; struct dumb_bo *cursor_bo; unsigned rotate_fb_id; uint16_t lut_r[256], lut_g[256], lut_b[256]; DamagePtr slave_damage; + + /** + * @{ MSC (vblank count) handling for the PRESENT extension. + * + * The kernel's vblank counters are 32 bits and apparently full of + * lies, and we need to give a reliable 64-bit msc for GL, so we + * have to track and convert to a userland-tracked 64-bit msc. + */ + int32_t vblank_offset; + uint32_t msc_prev; + uint64_t msc_high; + /** @} */ } drmmode_crtc_private_rec, *drmmode_crtc_private_ptr; typedef struct { @@ -121,6 +147,9 @@ Bool drmmode_map_cursor_bos(ScrnInfoPtr pScrn, drmmode_ptr drmmode); void drmmode_free_bos(ScrnInfoPtr pScrn, drmmode_ptr drmmode); void drmmode_get_default_bpp(ScrnInfoPtr pScrn, drmmode_ptr drmmmode, int *depth, int *bpp); +struct dumb_bo *dumb_get_bo_from_fd(int drm_fd, int fd, int pitch, int size); +int dumb_bo_destroy(int fd, struct dumb_bo *bo); + #ifndef DRM_CAP_DUMB_PREFERRED_DEPTH #define DRM_CAP_DUMB_PREFERRED_DEPTH 3 diff --git a/xorg-server/hw/xfree86/drivers/modesetting/vblank.c b/xorg-server/hw/xfree86/drivers/modesetting/vblank.c new file mode 100644 index 000000000..5031ef8ff --- /dev/null +++ b/xorg-server/hw/xfree86/drivers/modesetting/vblank.c @@ -0,0 +1,383 @@ +/* + * Copyright © 2013 Keith Packard + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/** @file vblank.c + * + * Support for tracking the DRM's vblank events. + */ + +#ifdef HAVE_DIX_CONFIG_H +#include "dix-config.h" +#endif + +#include +#include +#include +#include +#include "driver.h" +#include "drmmode_display.h" + +/** + * Tracking for outstanding events queued to the kernel. + * + * Each list entry is a struct ms_drm_queue, which has a uint32_t + * value generated from drm_seq that identifies the event and a + * reference back to the crtc/screen associated with the event. It's + * done this way rather than in the screen because we want to be able + * to drain the list of event handlers that should be called at server + * regen time, even though we don't close the drm fd and have no way + * to actually drain the kernel events. + */ +static struct xorg_list ms_drm_queue; +static uint32_t ms_drm_seq; + +struct ms_pageflip { + ScreenPtr screen; + Bool crtc_for_msc_ust; +}; + +static void ms_box_intersect(BoxPtr dest, BoxPtr a, BoxPtr b) +{ + dest->x1 = a->x1 > b->x1 ? a->x1 : b->x1; + dest->x2 = a->x2 < b->x2 ? a->x2 : b->x2; + if (dest->x1 >= dest->x2) { + dest->x1 = dest->x2 = dest->y1 = dest->y2 = 0; + return; + } + + dest->y1 = a->y1 > b->y1 ? a->y1 : b->y1; + dest->y2 = a->y2 < b->y2 ? a->y2 : b->y2; + if (dest->y1 >= dest->y2) + dest->x1 = dest->x2 = dest->y1 = dest->y2 = 0; +} + +static void ms_crtc_box(xf86CrtcPtr crtc, BoxPtr crtc_box) +{ + if (crtc->enabled) { + crtc_box->x1 = crtc->x; + crtc_box->x2 = + crtc->x + xf86ModeWidth(&crtc->mode, crtc->rotation); + crtc_box->y1 = crtc->y; + crtc_box->y2 = + crtc->y + xf86ModeHeight(&crtc->mode, crtc->rotation); + } else + crtc_box->x1 = crtc_box->x2 = crtc_box->y1 = crtc_box->y2 = 0; +} + +static int ms_box_area(BoxPtr box) +{ + return (int)(box->x2 - box->x1) * (int)(box->y2 - box->y1); +} + +/* + * Return the crtc covering 'box'. If two crtcs cover a portion of + * 'box', then prefer 'desired'. If 'desired' is NULL, then prefer the crtc + * with greater coverage + */ + +xf86CrtcPtr +ms_covering_crtc(ScrnInfoPtr scrn, + BoxPtr box, xf86CrtcPtr desired, BoxPtr crtc_box_ret) +{ + xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); + xf86CrtcPtr crtc, best_crtc; + int coverage, best_coverage; + int c; + BoxRec crtc_box, cover_box; + + best_crtc = NULL; + best_coverage = 0; + crtc_box_ret->x1 = 0; + crtc_box_ret->x2 = 0; + crtc_box_ret->y1 = 0; + crtc_box_ret->y2 = 0; + for (c = 0; c < xf86_config->num_crtc; c++) { + crtc = xf86_config->crtc[c]; + + /* If the CRTC is off, treat it as not covering */ + if (!crtc->enabled) + continue; + + ms_crtc_box(crtc, &crtc_box); + ms_box_intersect(&cover_box, &crtc_box, box); + coverage = ms_box_area(&cover_box); + if (coverage && crtc == desired) { + *crtc_box_ret = crtc_box; + return crtc; + } + if (coverage > best_coverage) { + *crtc_box_ret = crtc_box; + best_crtc = crtc; + best_coverage = coverage; + } + } + return best_crtc; +} + +xf86CrtcPtr +ms_dri2_crtc_covering_drawable(DrawablePtr pDraw) +{ + ScreenPtr pScreen = pDraw->pScreen; + ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen); + BoxRec box, crtcbox; + xf86CrtcPtr crtc; + + box.x1 = pDraw->x; + box.y1 = pDraw->y; + box.x2 = box.x1 + pDraw->width; + box.y2 = box.y1 + pDraw->height; + + crtc = ms_covering_crtc(pScrn, &box, NULL, &crtcbox); + + /* Make sure the CRTC is valid and this is the real front buffer */ + if (crtc != NULL && !crtc->rotatedData) + return crtc; + + return NULL; +} + +static Bool +ms_get_kernel_ust_msc(xf86CrtcPtr crtc, + uint32_t *msc, uint64_t *ust) +{ + ScreenPtr screen = crtc->randr_crtc->pScreen; + ScrnInfoPtr scrn = xf86ScreenToScrn(screen); + modesettingPtr ms = modesettingPTR(scrn); + drmmode_crtc_private_ptr drmmode_crtc = crtc->driver_private; + drmVBlank vbl; + int ret; + + /* Get current count */ + vbl.request.type = DRM_VBLANK_RELATIVE | drmmode_crtc->vblank_pipe; + vbl.request.sequence = 0; + vbl.request.signal = 0; + ret = drmWaitVBlank(ms->fd, &vbl); + if (ret) { + *msc = 0; + *ust = 0; + return FALSE; + } else { + *msc = vbl.reply.sequence; + *ust = (CARD64) vbl.reply.tval_sec * 1000000 + vbl.reply.tval_usec; + return TRUE; + } +} + +/** + * Convert a 32-bit kernel MSC sequence number to a 64-bit local sequence + * number, adding in the vblank_offset and high 32 bits, and dealing + * with 64-bit wrapping + */ +uint64_t +ms_kernel_msc_to_crtc_msc(xf86CrtcPtr crtc, uint32_t sequence) +{ + drmmode_crtc_private_rec *drmmode_crtc = crtc->driver_private; + sequence += drmmode_crtc->vblank_offset; + + if ((int32_t) (sequence - drmmode_crtc->msc_prev) < -0x40000000) + drmmode_crtc->msc_high += 0x100000000L; + drmmode_crtc->msc_prev = sequence; + return drmmode_crtc->msc_high + sequence; +} + +int +ms_get_crtc_ust_msc(xf86CrtcPtr crtc, CARD64 *ust, CARD64 *msc) +{ + uint32_t kernel_msc; + + if (!ms_get_kernel_ust_msc(crtc, &kernel_msc, ust)) + return BadMatch; + *msc = ms_kernel_msc_to_crtc_msc(crtc, kernel_msc); + + return Success; +} + +#define MAX_VBLANK_OFFSET 1000 + +/** + * Convert a 64-bit adjusted MSC value into a 32-bit kernel sequence number, + * removing the high 32 bits and subtracting out the vblank_offset term. + * + * This also updates the vblank_offset when it notices that the value should + * change. + */ +uint32_t +ms_crtc_msc_to_kernel_msc(xf86CrtcPtr crtc, uint64_t expect) +{ + drmmode_crtc_private_rec *drmmode_crtc = crtc->driver_private; + uint64_t msc; + uint64_t ust; + int64_t diff; + + if (ms_get_crtc_ust_msc(crtc, &ust, &msc) == Success) { + diff = expect - msc; + + /* We're way off here, assume that the kernel has lost its mind + * and smack the vblank back to something sensible + */ + if (diff < -MAX_VBLANK_OFFSET || MAX_VBLANK_OFFSET < diff) { + drmmode_crtc->vblank_offset += (int32_t) diff; + if (drmmode_crtc->vblank_offset > -MAX_VBLANK_OFFSET && + drmmode_crtc->vblank_offset < MAX_VBLANK_OFFSET) + drmmode_crtc->vblank_offset = 0; + } + } + return (uint32_t) (expect - drmmode_crtc->vblank_offset); +} + +/** + * Check for pending DRM events and process them. + */ +static void +ms_drm_wakeup_handler(void *data, int err, void *mask) +{ + ScreenPtr screen = data; + ScrnInfoPtr scrn = xf86ScreenToScrn(screen); + modesettingPtr ms = modesettingPTR(scrn); + fd_set *read_mask = mask; + + if (data == NULL || err < 0) + return; + + if (FD_ISSET(ms->fd, read_mask)) + drmHandleEvent(ms->fd, &ms->event_context); +} + +/* + * Enqueue a potential drm response; when the associated response + * appears, we've got data to pass to the handler from here + */ +uint32_t +ms_drm_queue_alloc(xf86CrtcPtr crtc, + void *data, + ms_drm_handler_proc handler, + ms_drm_abort_proc abort) +{ + ScreenPtr screen = crtc->randr_crtc->pScreen; + ScrnInfoPtr scrn = xf86ScreenToScrn(screen); + struct ms_drm_queue *q; + + q = calloc(1, sizeof(struct ms_drm_queue)); + + if (!q) + return 0; + if (!ms_drm_seq) + ++ms_drm_seq; + q->seq = ms_drm_seq++; + q->scrn = scrn; + q->crtc = crtc; + q->data = data; + q->handler = handler; + q->abort = abort; + + xorg_list_add(&q->list, &ms_drm_queue); + + return q->seq; +} + +/** + * Abort one queued DRM entry, removing it + * from the list, calling the abort function and + * freeing the memory + */ +static void +ms_drm_abort_one(struct ms_drm_queue *q) +{ + xorg_list_del(&q->list); + q->abort(q->data); + free(q); +} + +/** + * Abort all queued entries on a specific scrn, used + * when resetting the X server + */ +static void +ms_drm_abort_scrn(ScrnInfoPtr scrn) +{ + struct ms_drm_queue *q, *tmp; + + xorg_list_for_each_entry_safe(q, tmp, &ms_drm_queue, list) { + if (q->scrn == scrn) + ms_drm_abort_one(q); + } +} + +/* + * General DRM kernel handler. Looks for the matching sequence number in the + * drm event queue and calls the handler for it. + */ +static void +ms_drm_handler(int fd, uint32_t frame, uint32_t sec, uint32_t usec, + void *user_ptr) +{ + struct ms_drm_queue *q, *tmp; + uint32_t user_data = (uint32_t) (intptr_t) user_ptr; + + xorg_list_for_each_entry_safe(q, tmp, &ms_drm_queue, list) { + if (q->seq == user_data) { + uint64_t msc; + + msc = ms_kernel_msc_to_crtc_msc(q->crtc, frame); + xorg_list_del(&q->list); + q->handler(msc, (uint64_t) sec * 1000000 + usec, q->data); + free(q); + break; + } + } +} + +Bool +ms_vblank_screen_init(ScreenPtr screen) +{ + ScrnInfoPtr scrn = xf86ScreenToScrn(screen); + modesettingPtr ms = modesettingPTR(scrn); + + xorg_list_init(&ms_drm_queue); + + ms->event_context.version = DRM_EVENT_CONTEXT_VERSION; + ms->event_context.vblank_handler = ms_drm_handler; + ms->event_context.page_flip_handler = ms_drm_handler; + + /* We need to re-register the DRM fd for the synchronisation + * feedback on every server generation, so perform the + * registration within ScreenInit and not PreInit. + */ + AddGeneralSocket(ms->fd); + RegisterBlockAndWakeupHandlers((BlockHandlerProcPtr)NoopDDA, + ms_drm_wakeup_handler, screen); + + return TRUE; +} + +void +ms_vblank_close_screen(ScreenPtr screen) +{ + ScrnInfoPtr scrn = xf86ScreenToScrn(screen); + modesettingPtr ms = modesettingPTR(scrn); + + ms_drm_abort_scrn(scrn); + + RemoveBlockAndWakeupHandlers((BlockHandlerProcPtr)NoopDDA, + ms_drm_wakeup_handler, screen); + RemoveGeneralSocket(ms->fd); +} -- cgit v1.2.3