From mboxrd@z Thu Jan 1 00:00:00 1970 From: stillcompiling@gmail.com (Joshua Clayton) Date: Sat, 19 Nov 2016 03:58:15 -0800 Subject: [RFC 2/6] drm/etnaviv: allow building etnaviv on omap devices In-Reply-To: <20161118163342.5t2tbsw54k2gmqe3@rob-hp-laptop> References: <20161118024436.13447-1-robertcnelson@gmail.com> <20161118024436.13447-2-robertcnelson@gmail.com> <20161118163342.5t2tbsw54k2gmqe3@rob-hp-laptop> Message-ID: <2481825.ONQ5ft592J@diplodocus> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Friday, November 18, 2016 10:33:42 AM Rob Herring wrote: > On Thu, Nov 17, 2016 at 08:44:32PM -0600, Robert Nelson wrote: > > Signed-off-by: Robert Nelson > > CC: Christian Gmeiner > > CC: Russell King > > CC: Lucas Stach > > --- > > drivers/gpu/drm/etnaviv/Kconfig | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/drivers/gpu/drm/etnaviv/Kconfig b/drivers/gpu/drm/etnaviv/Kconfig > > index 2cde7a5..b776f41 100644 > > --- a/drivers/gpu/drm/etnaviv/Kconfig > > +++ b/drivers/gpu/drm/etnaviv/Kconfig > > @@ -2,7 +2,7 @@ > > config DRM_ETNAVIV > > tristate "ETNAVIV (DRM support for Vivante GPU IP cores)" > > depends on DRM > > - depends on ARCH_MXC || ARCH_DOVE > > + depends on ARCH_MXC || ARCH_DOVE || ARCH_OMAP2PLUS > > Why not just drop this line. Then it will get better build testing, too. > > > select SHMEM > > select TMPFS > > select IOMMU_API > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel at lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel ...building with ARCH=x86_64 ^ drivers/gpu/drm/etnaviv/etnaviv_gpu.c: In function ?etnaviv_gpu_init?: drivers/gpu/drm/etnaviv/etnaviv_gpu.c:633:18: error: ?PHYS_OFFSET? undeclared (first use in this function) if (dma_mask < PHYS_OFFSET + SZ_2G) ^ drivers/gpu/drm/etnaviv/etnaviv_gpu.c:633:18: note: each undeclared identifier is reported only once for each function it appears in make[4]: *** [scripts/Makefile.build:290: drivers/gpu/drm/etnaviv/etnaviv_gpu.o] Error 1 make[3]: *** [scripts/Makefile.build:440: drivers/gpu/drm/etnaviv] Error 2 make[2]: *** [scripts/Makefile.build:440: drivers/gpu/drm] Error 2 make[1]: *** [scripts/Makefile.build:440: drivers/gpu] Error 2 make: *** [Makefile:968: drivers] Error 2 ...looks like this snippit is the only (compile time) problem: 622 /* 623 * Set the GPU linear window to be@the end of the DMA window, where 624 * the CMA area is likely to reside. This ensures that we are able to 625 * map the command buffers while having the linear window overlap as 626 * much RAM as possible, so we can optimize mappings for other buffers. 627 * 628 * For 3D cores only do this if MC2.0 is present, as with MC1.0 it leads 629 * to different views of the memory on the individual engines. 630 */ 631 if (!(gpu->identity.features & chipFeatures_PIPE_3D) || 632 (gpu->identity.minor_features0 & chipMinorFeatures0_MC20)) { 633 u32 dma_mask = (u32)dma_get_required_mask(gpu->dev); 634 if (dma_mask < PHYS_OFFSET + SZ_2G) 635 gpu->memory_base = PHYS_OFFSET; 636 else 637 gpu->memory_base = dma_mask - SZ_2G + 1; 638 } Joshua