| 1 | From 37d51acb3b6a38af1717bfaa7925043c35bfb447 Mon Sep 17 00:00:00 2001 |
| 2 | From: Dave Airlie <airlied@redhat.com> |
| 3 | Date: Fri, 17 Aug 2012 09:49:24 +1000 |
| 4 | Subject: [PATCH] autobind GPUs to the screen, (v3) |
| 5 | |
| 6 | this is racy and really not what we want for hotplug going forward, |
| 7 | but until DE support is in GNOME its probably for the best. |
| 8 | |
| 9 | v2: fix if config or slave config is NULL |
| 10 | v3: fix multi useful slaves |
| 11 | DO NOT UPSTREAM. |
| 12 | --- |
| 13 | hw/xfree86/common/xf86Init.c | 12 ++++++++++++ |
| 14 | hw/xfree86/common/xf86platformBus.c | 3 +++ |
| 15 | hw/xfree86/modes/xf86Crtc.c | 32 ++++++++++++++++++++++++++++++++ |
| 16 | 3 files changed, 47 insertions(+), 0 deletions(-) |
| 17 | |
| 18 | --- a/hw/xfree86/common/xf86Init.c |
| 19 | +++ b/hw/xfree86/common/xf86Init.c |
| 20 | @@ -361,6 +361,16 @@ xf86CreateRootWindow(WindowPtr pWin) |
| 21 | return ret; |
| 22 | } |
| 23 | |
| 24 | +extern void xf86AutoConfigOutputDevice(ScrnInfoPtr pScrn, ScrnInfoPtr master); |
| 25 | +static void |
| 26 | +xf86AutoConfigOutputDevices(void) |
| 27 | +{ |
| 28 | + int i; |
| 29 | + |
| 30 | + for (i = 0; i < xf86NumGPUScreens; i++) |
| 31 | + xf86AutoConfigOutputDevice(xf86GPUScreens[i], xf86Screens[0]); |
| 32 | +} |
| 33 | + |
| 34 | static void |
| 35 | InstallSignalHandlers(void) |
| 36 | { |
| 37 | @@ -951,6 +961,8 @@ InitOutput(ScreenInfo * pScreenInfo, int |
| 38 | for (i = 0; i < xf86NumGPUScreens; i++) |
| 39 | AttachUnboundGPU(xf86Screens[0]->pScreen, xf86GPUScreens[i]->pScreen); |
| 40 | |
| 41 | + xf86AutoConfigOutputDevices(); |
| 42 | + |
| 43 | xf86VGAarbiterWrapFunctions(); |
| 44 | if (sigio_blocked) |
| 45 | OsReleaseSIGIO(); |
| 46 | --- a/hw/xfree86/common/xf86platformBus.c |
| 47 | +++ b/hw/xfree86/common/xf86platformBus.c |
| 48 | @@ -401,6 +401,8 @@ xf86platformProbeDev(DriverPtr drvp) |
| 49 | return foundScreen; |
| 50 | } |
| 51 | |
| 52 | +extern void xf86AutoConfigOutputDevice(ScrnInfoPtr pScrn, ScrnInfoPtr master); |
| 53 | + |
| 54 | int |
| 55 | xf86platformAddDevice(int index) |
| 56 | { |
| 57 | @@ -473,6 +475,7 @@ xf86platformAddDevice(int index) |
| 58 | } |
| 59 | /* attach unbound to 0 protocol screen */ |
| 60 | AttachUnboundGPU(xf86Screens[0]->pScreen, xf86GPUScreens[i]->pScreen); |
| 61 | + xf86AutoConfigOutputDevice(xf86GPUScreens[i], xf86Screens[0]); |
| 62 | |
| 63 | RRResourcesChanged(xf86Screens[0]->pScreen); |
| 64 | RRTellChanged(xf86Screens[0]->pScreen); |
| 65 | --- a/hw/xfree86/modes/xf86Crtc.c |
| 66 | +++ b/hw/xfree86/modes/xf86Crtc.c |
| 67 | @@ -3383,3 +3383,35 @@ xf86DetachAllCrtc(ScrnInfoPtr scrn) |
| 68 | crtc->x = crtc->y = 0; |
| 69 | } |
| 70 | } |
| 71 | + |
| 72 | + |
| 73 | +void xf86AutoConfigOutputDevice(ScrnInfoPtr pScrn, ScrnInfoPtr master) |
| 74 | +{ |
| 75 | + RRProviderPtr master_provider; |
| 76 | + xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(master); |
| 77 | + xf86CrtcConfigPtr slave_config = XF86_CRTC_CONFIG_PTR(pScrn); |
| 78 | + Bool unbound = FALSE; |
| 79 | + |
| 80 | + if (!config || !slave_config) |
| 81 | + return; |
| 82 | + |
| 83 | + master_provider = config->randr_provider; |
| 84 | + |
| 85 | + if ((master->capabilities & RR_Capability_SinkOffload) && |
| 86 | + pScrn->capabilities & RR_Capability_SourceOffload) { |
| 87 | + /* source offload */ |
| 88 | + |
| 89 | + DetachUnboundGPU(pScrn->pScreen); |
| 90 | + unbound = TRUE; |
| 91 | + AttachOffloadGPU(master->pScreen, pScrn->pScreen); |
| 92 | + slave_config->randr_provider->offload_sink = master_provider; |
| 93 | + } |
| 94 | + if ((master->capabilities & RR_Capability_SourceOutput) && |
| 95 | + pScrn->capabilities & RR_Capability_SinkOutput) { |
| 96 | + /* sink offload */ |
| 97 | + if (!unbound) |
| 98 | + DetachUnboundGPU(pScrn->pScreen); |
| 99 | + AttachOutputGPU(master->pScreen, pScrn->pScreen); |
| 100 | + slave_config->randr_provider->output_source = master_provider; |
| 101 | + } |
| 102 | +} |