This is for the problem building libOSMesa that I mentioned. With it, DRI should build on powerpc; I'm not entirely certain it works. I'm leery of the second patch.
With these, we'll have broken but building DRI - a good step. We'll also be able to build libOSmesa, hopefully. ----- Forwarded message from Kostas Gewrgiou <[EMAIL PROTECTED]> ----- Date: Wed, 2 Aug 2000 21:17:28 +0300 (EEST) From: Kostas Gewrgiou <[EMAIL PROTECTED]> Subject: Re: LinuxPPC X Server To: [EMAIL PROTECTED] On Tue, 1 Aug 2000, Daniel Jacobowitz wrote: > > On Tue, Aug 01, 2000 at 03:54:37PM +0300, Kostas Gewrgiou wrote: > > The mb() should be enough in r128_dma.c (we might not need it at all though > > but it shouldn't hurt). The R128_WRITE/R128_READ macros in r128_drv.h will > > need to do byteswapping also i imagine. > > > > The writes to the CCE ring buffer might be a problem also you might need > > to do different swaps depending on where the buffer lives (host memory or > > in the framebuffer) since the framebuffer writes get swapped depending on > > the current depth. (voodoo3 has this problem) > > > > The drm modules need some asm code as well, look at my patches in > > dri.sourceforge.net (patch_id 100488,100568) the code is almost a copy > > from the glibc sources (i know next to nothing about ppc asm) but they > > work well with my voodoo3. > > > > Also note that the DRI drivers don't get build by default in PPC > > you have to #define BuildXF86DRI YES in xf config files *AND* > > patch xc/lib/GL/mesa/src/drv/Imakefile to enable the dri drivers > > to build under ppc. > > > > Unfortunately i don't have an r128 card so i can't do anything here :( > > What sort of patch do we need to that Imakefile? I couldn't figure out > what to do. > To enable the dri drivers you'll need the following patch: --- xc/lib/GL/mesa/src/drv/Imakefile-orig Tue Jul 18 14:32:34 2000 +++ xc/lib/GL/mesa/src/drv/Imakefile Tue Jul 18 14:33:41 2000 @@ -54,6 +54,14 @@ SUBDIRS += common SUBDIRS += mga SUBDIRS += r128 +#elif defined(PpcArchitecture) +SUBDIRS += gamma +#if HasGlide3 +SUBDIRS += tdfx +#endif +SUBDIRS += common +SUBDIRS += mga +SUBDIRS += r128 #elif defined(SparcArchitecture) SUBDIRS += ffb #endif For the build problems because of the empty subdirs in xc/lib/GL/mesa/src the following will do, its not actually correct but i am not sure how to fix it. --- xc/lib/GL/mesa/src/Imakefile-orig Tue Jul 18 18:29:32 2000 +++ xc/lib/GL/mesa/src/Imakefile Wed Aug 2 21:13:47 2000 @@ -389,7 +389,7 @@ #define IHaveSubdirs #define PassCDebugFlags -SUBDIRS = $(MESASUBDIRS) $(ASMSUBDIRS) +SUBDIRS = $(MESASUBDIRS) $(ASMSUBDIRS) drv MakeSubdirs($(SUBDIRS)) DependSubdirs($(SUBDIRS)) Kostas ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/ ----- End forwarded message ----- Dan /--------------------------------\ /--------------------------------\ | Daniel Jacobowitz |__| SCS Class of 2002 | | Debian GNU/Linux Developer __ Carnegie Mellon University | | [EMAIL PROTECTED] | | [EMAIL PROTECTED] | \--------------------------------/ \--------------------------------/
