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authorDave Airlie <airlied@redhat.com>2012-08-17 09:49:24 +1000
committerHans de Goede <hdegoede@redhat.com>2019-08-07 12:26:59 +0200
commit078277e4d92f05a90c4715d61b89b9d9d38d68ea (patch)
tree95087ae8210e016e111594e64cd4a47a5fc927ca /hw/xfree86/common
parentfbd2bb9dd047a206b9c8cfaca62079c8d866c617 (diff)
xf86: autobind GPUs to the screen
This is a modified version of a patch we've been carry-ing in Fedora and RHEL for years now. This patch automatically adds secondary GPUs to the master as output sink / offload source making e.g. the use of slave-outputs just work, with requiring the user to manually run "xrandr --setprovideroutputsource" before he can hookup an external monitor to his hybrid graphics laptop. There is one problem with this patch, which is why it was not upstreamed before. What to do when a secondary GPU gets detected really is a policy decission (e.g. one may want to autobind PCI GPUs but not USB ones) and as such should be under control of the Desktop Environment. Unconditionally adding autobinding support to the xserver will result in races between the DE dealing with the hotplug of a secondary GPU and the server itself dealing with it. However we've waited for years for any Desktop Environments to actually start doing some sort of autoconfiguration of secondary GPUs and there is still not a single DE dealing with this, so I believe that it is time to upstream this now. To avoid potential future problems if any DEs get support for doing secondary GPU configuration themselves, the new autobind functionality is made optional. Since no DEs currently support doing this themselves it is enabled by default. When DEs grow support for doing this themselves they can disable the servers autobinding through the servers cmdline or a xorg.conf snippet. Signed-off-by: Dave Airlie <airlied@gmail.com> [hdegoede@redhat.com: Make configurable, fix with nvidia, submit upstream] Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Eric Anholt <eric@anholt.net> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> --- Changes in v2: -Make the default enabled instead of installing a xorg.conf snippet which enables it unconditionally Changes in v3: -Handle GPUScreen autoconfig in randr/rrprovider.c, looking at rrScrPriv->provider, rather then in hw/xfree86/modes/xf86Crtc.c looking at xf86CrtcConfig->provider. This fixes the autoconfig not working with the nvidia binary driver
Diffstat (limited to 'hw/xfree86/common')
-rw-r--r--hw/xfree86/common/xf86Config.c19
-rw-r--r--hw/xfree86/common/xf86Globals.c2
-rw-r--r--hw/xfree86/common/xf86Init.c20
-rw-r--r--hw/xfree86/common/xf86Priv.h1
-rw-r--r--hw/xfree86/common/xf86Privstr.h1
-rw-r--r--hw/xfree86/common/xf86platformBus.c4
6 files changed, 47 insertions, 0 deletions
diff --git a/hw/xfree86/common/xf86Config.c b/hw/xfree86/common/xf86Config.c
index ee5ab5d11..75657fead 100644
--- a/hw/xfree86/common/xf86Config.c
+++ b/hw/xfree86/common/xf86Config.c
@@ -642,6 +642,7 @@ typedef enum {
FLAG_DRI2,
FLAG_USE_SIGIO,
FLAG_AUTO_ADD_GPU,
+ FLAG_AUTO_BIND_GPU,
FLAG_MAX_CLIENTS,
FLAG_IGLX,
FLAG_DEBUG,
@@ -696,6 +697,8 @@ static OptionInfoRec FlagOptions[] = {
{0}, FALSE},
{FLAG_AUTO_ADD_GPU, "AutoAddGPU", OPTV_BOOLEAN,
{0}, FALSE},
+ {FLAG_AUTO_BIND_GPU, "AutoBindGPU", OPTV_BOOLEAN,
+ {0}, FALSE},
{FLAG_MAX_CLIENTS, "MaxClients", OPTV_INTEGER,
{0}, FALSE },
{FLAG_IGLX, "IndirectGLX", OPTV_BOOLEAN,
@@ -775,6 +778,22 @@ configServerFlags(XF86ConfFlagsPtr flagsconf, XF86OptionPtr layoutopts)
}
xf86Msg(from, "%sutomatically adding GPU devices\n",
xf86Info.autoAddGPU ? "A" : "Not a");
+
+ if (xf86AutoBindGPUDisabled) {
+ xf86Info.autoBindGPU = FALSE;
+ from = X_CMDLINE;
+ }
+ else if (xf86IsOptionSet(FlagOptions, FLAG_AUTO_BIND_GPU)) {
+ xf86GetOptValBool(FlagOptions, FLAG_AUTO_BIND_GPU,
+ &xf86Info.autoBindGPU);
+ from = X_CONFIG;
+ }
+ else {
+ from = X_DEFAULT;
+ }
+ xf86Msg(from, "%sutomatically binding GPU devices\n",
+ xf86Info.autoBindGPU ? "A" : "Not a");
+
/*
* Set things up based on the config file information. Some of these
* settings may be overridden later when the command line options are
diff --git a/hw/xfree86/common/xf86Globals.c b/hw/xfree86/common/xf86Globals.c
index 8f7909d11..65a3192df 100644
--- a/hw/xfree86/common/xf86Globals.c
+++ b/hw/xfree86/common/xf86Globals.c
@@ -132,6 +132,7 @@ xf86InfoRec xf86Info = {
#else
.autoAddGPU = FALSE,
#endif
+ .autoBindGPU = TRUE,
};
const char *xf86ConfigFile = NULL;
@@ -190,6 +191,7 @@ rgb xf86Weight = { 0, 0, 0 };
Gamma xf86Gamma = { 0.0, 0.0, 0.0 };
Bool xf86AllowMouseOpenFail = FALSE;
+Bool xf86AutoBindGPUDisabled = FALSE;
#ifdef XF86VIDMODE
Bool xf86VidModeDisabled = FALSE;
diff --git a/hw/xfree86/common/xf86Init.c b/hw/xfree86/common/xf86Init.c
index 1a2520c2a..1377710db 100644
--- a/hw/xfree86/common/xf86Init.c
+++ b/hw/xfree86/common/xf86Init.c
@@ -73,6 +73,7 @@
#include "xf86DDC.h"
#include "xf86Xinput.h"
#include "xf86InPriv.h"
+#include "xf86Crtc.h"
#include "picturestr.h"
#include "randrstr.h"
#include "glxvndabi.h"
@@ -226,6 +227,19 @@ xf86PrivsElevated(void)
}
static void
+xf86AutoConfigOutputDevices(void)
+{
+ int i;
+
+ if (!xf86Info.autoBindGPU)
+ return;
+
+ for (i = 0; i < xf86NumGPUScreens; i++)
+ RRProviderAutoConfigGpuScreen(xf86ScrnToScreen(xf86GPUScreens[i]),
+ xf86ScrnToScreen(xf86Screens[0]));
+}
+
+static void
AddSeatId(CallbackListPtr *pcbl, void *data, void *screen)
{
ScreenPtr pScreen = screen;
@@ -703,6 +717,8 @@ InitOutput(ScreenInfo * pScreenInfo, int argc, char **argv)
for (i = 0; i < xf86NumGPUScreens; i++)
AttachUnboundGPU(xf86Screens[0]->pScreen, xf86GPUScreens[i]->pScreen);
+ xf86AutoConfigOutputDevices();
+
xf86VGAarbiterWrapFunctions();
if (sigio_blocked)
input_unlock();
@@ -1179,6 +1195,10 @@ ddxProcessArgument(int argc, char **argv, int i)
xf86Info.iglxFrom = X_CMDLINE;
return 0;
}
+ if (!strcmp(argv[i], "-noautoBindGPU")) {
+ xf86AutoBindGPUDisabled = TRUE;
+ return 1;
+ }
/* OS-specific processing */
return xf86ProcessArgument(argc, argv, i);
diff --git a/hw/xfree86/common/xf86Priv.h b/hw/xfree86/common/xf86Priv.h
index 091c8bb2f..dde458327 100644
--- a/hw/xfree86/common/xf86Priv.h
+++ b/hw/xfree86/common/xf86Priv.h
@@ -46,6 +46,7 @@
extern _X_EXPORT const char *xf86ConfigFile;
extern _X_EXPORT const char *xf86ConfigDir;
extern _X_EXPORT Bool xf86AllowMouseOpenFail;
+extern _X_EXPORT Bool xf86AutoBindGPUDisabled;
#ifdef XF86VIDMODE
extern _X_EXPORT Bool xf86VidModeDisabled;
diff --git a/hw/xfree86/common/xf86Privstr.h b/hw/xfree86/common/xf86Privstr.h
index 55d1b2455..914f04f67 100644
--- a/hw/xfree86/common/xf86Privstr.h
+++ b/hw/xfree86/common/xf86Privstr.h
@@ -97,6 +97,7 @@ typedef struct {
Bool autoAddGPU;
const char *debug;
+ Bool autoBindGPU;
} xf86InfoRec, *xf86InfoPtr;
/* ISC's cc can't handle ~ of UL constants, so explicitly type cast them. */
diff --git a/hw/xfree86/common/xf86platformBus.c b/hw/xfree86/common/xf86platformBus.c
index dadbac6c8..23dffc9d6 100644
--- a/hw/xfree86/common/xf86platformBus.c
+++ b/hw/xfree86/common/xf86platformBus.c
@@ -49,6 +49,7 @@
#include "Pci.h"
#include "xf86platformBus.h"
#include "xf86Config.h"
+#include "xf86Crtc.h"
#include "randrstr.h"
int platformSlotClaimed;
@@ -665,6 +666,9 @@ xf86platformAddDevice(int index)
}
/* attach unbound to 0 protocol screen */
AttachUnboundGPU(xf86Screens[0]->pScreen, xf86GPUScreens[i]->pScreen);
+ if (xf86Info.autoBindGPU)
+ RRProviderAutoConfigGpuScreen(xf86ScrnToScreen(xf86GPUScreens[i]),
+ xf86ScrnToScreen(xf86Screens[0]));
RRResourcesChanged(xf86Screens[0]->pScreen);
RRTellChanged(xf86Screens[0]->pScreen);