Here's an updated patch -- removes the _X_INTERNAL from the .c files, renames xf86DiDGAInit to _xf86_di_dga_init_internal, and renames xf86DiDGAReInit to _xf86_di_dga_reinit_internal.
Thanks for previous review. -keith >From 894680ec0335d7bc2c744c53f6a28b40ab850b6c Mon Sep 17 00:00:00 2001 From: Keith Packard <[email protected]> Date: Mon, 28 Sep 2009 12:39:47 -0700 Subject: [PATCH] Re-fix DGA removal. Removing DGA ended up breaking any drivers calling into the old xf86DiDGAInit function as it tried to see if DGA was already enabled and ended up crashing if the VT wasn't completely initialized. Oops. Also, if the driver initializes DGA itself, have the DiDGA initialization overwrite that information as the DiDGA code will call ReInit on mode detect. Signed-off-by: Keith Packard <[email protected]> --- hw/xfree86/common/xf86DGA.c | 29 ++++++++++++++++------------- hw/xfree86/modes/xf86Crtc.c | 4 ++-- hw/xfree86/modes/xf86Crtc.h | 8 ++++++++ hw/xfree86/modes/xf86DiDGA.c | 15 ++++++++++++--- 4 files changed, 38 insertions(+), 18 deletions(-) diff --git a/hw/xfree86/common/xf86DGA.c b/hw/xfree86/common/xf86DGA.c index 42b7c58..804fd37 100644 --- a/hw/xfree86/common/xf86DGA.c +++ b/hw/xfree86/common/xf86DGA.c @@ -120,8 +120,22 @@ DGAInit( DGAScreenKey = &DGAScreenKeyIndex; - if(!(pScreenPriv = (DGAScreenPtr)xalloc(sizeof(DGAScreenRec)))) - return FALSE; + pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen); + + if (!pScreenPriv) + { + if(!(pScreenPriv = (DGAScreenPtr)xalloc(sizeof(DGAScreenRec)))) + return FALSE; + dixSetPrivate(&pScreen->devPrivates, DGAScreenKey, pScreenPriv); + pScreenPriv->CloseScreen = pScreen->CloseScreen; + pScreen->CloseScreen = DGACloseScreen; + pScreenPriv->DestroyColormap = pScreen->DestroyColormap; + pScreen->DestroyColormap = DGADestroyColormap; + pScreenPriv->InstallColormap = pScreen->InstallColormap; + pScreen->InstallColormap = DGAInstallColormap; + pScreenPriv->UninstallColormap = pScreen->UninstallColormap; + pScreen->UninstallColormap = DGAUninstallColormap; + } pScreenPriv->pScrn = pScrn; pScreenPriv->numModes = num; @@ -146,17 +160,6 @@ DGAInit( modes[i].flags &= ~DGA_PIXMAP_AVAILABLE; #endif - dixSetPrivate(&pScreen->devPrivates, DGAScreenKey, pScreenPriv); - pScreenPriv->CloseScreen = pScreen->CloseScreen; - pScreen->CloseScreen = DGACloseScreen; - pScreenPriv->DestroyColormap = pScreen->DestroyColormap; - pScreen->DestroyColormap = DGADestroyColormap; - pScreenPriv->InstallColormap = pScreen->InstallColormap; - pScreen->InstallColormap = DGAInstallColormap; - pScreenPriv->UninstallColormap = pScreen->UninstallColormap; - pScreen->UninstallColormap = DGAUninstallColormap; - - return TRUE; } diff --git a/hw/xfree86/modes/xf86Crtc.c b/hw/xfree86/modes/xf86Crtc.c index c1e31e0..506fbb9 100644 --- a/hw/xfree86/modes/xf86Crtc.c +++ b/hw/xfree86/modes/xf86Crtc.c @@ -806,7 +806,7 @@ xf86CrtcScreenInit (ScreenPtr screen) screen->CloseScreen = xf86CrtcCloseScreen; #ifdef XFreeXDGA - xf86DiDGAInit(screen, 0); + _xf86_di_dga_init_internal(screen); #endif #ifdef RANDR_13_INTERFACE return RANDR_INTERFACE_VERSION; @@ -1928,7 +1928,7 @@ xf86SetScrnInfoModes (ScrnInfoPtr scrn) scrn->currentMode = scrn->modes; #ifdef XFreeXDGA if (scrn->pScreen) - xf86DiDGAReInit(scrn->pScreen); + _xf86_di_dga_reinit_internal(scrn->pScreen); #endif } diff --git a/hw/xfree86/modes/xf86Crtc.h b/hw/xfree86/modes/xf86Crtc.h index 69afaa5..9baa956 100644 --- a/hw/xfree86/modes/xf86Crtc.h +++ b/hw/xfree86/modes/xf86Crtc.h @@ -833,6 +833,10 @@ xf86OutputGetEDID (xf86OutputPtr output, I2CBusPtr pDDCBus); extern _X_EXPORT Bool xf86DiDGAInit (ScreenPtr pScreen, unsigned long dga_address); +/* this is the real function, used only internally */ +_X_INTERNAL Bool +_xf86_di_dga_init_internal (ScreenPtr pScreen); + /** * Re-initialize dga for this screen (as when the set of modes changes) */ @@ -841,6 +845,10 @@ extern _X_EXPORT Bool xf86DiDGAReInit (ScreenPtr pScreen); #endif +/* This is the real function, used only internally */ +_X_INTERNAL Bool +_xf86_di_dga_reinit_internal (ScreenPtr pScreen); + /* * Set the subpixel order reported for the screen using * the information from the outputs diff --git a/hw/xfree86/modes/xf86DiDGA.c b/hw/xfree86/modes/xf86DiDGA.c index 0f7b834..60fbdbf 100644 --- a/hw/xfree86/modes/xf86DiDGA.c +++ b/hw/xfree86/modes/xf86DiDGA.c @@ -175,6 +175,12 @@ static DGAFunctionRec xf86_dga_funcs = { Bool xf86DiDGAReInit (ScreenPtr pScreen) { + return TRUE; +} + +Bool +_xf86_di_dga_reinit_internal (ScreenPtr pScreen) +{ ScrnInfoPtr scrn = xf86Screens[pScreen->myNum]; xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); @@ -190,12 +196,15 @@ xf86DiDGAReInit (ScreenPtr pScreen) Bool xf86DiDGAInit (ScreenPtr pScreen, unsigned long dga_address) { + return TRUE; +} + +Bool +_xf86_di_dga_init_internal (ScreenPtr pScreen) +{ ScrnInfoPtr scrn = xf86Screens[pScreen->myNum]; xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); - if (DGAAvailable(pScreen->myNum)) - return TRUE; - xf86_config->dga_flags = 0; xf86_config->dga_address = 0; xf86_config->dga_width = 0; -- 1.6.4.3 -- [email protected]
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