Re: Compiling nouveau open source nvidia graphics card drivers for Xen paravirt-operations domain 0 kernel

["Mr. Teo En Ming (Zhang Enming)" <enming.teo@asiasoftsea.net>]

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Dear Xen developers,

Just now in my earlier email, I renamed drivers/gpu/drm/ttm to drivers/gpu/drm/ttm_orig.

However, I forgot to rename include/drm/ttm to include/drm/ttm_orig. Hence the build process complains Makefile in ttm is not found.

Now, I have renamed include/drm/ttm to include/drm/ttm_orig. I have successfully excluded TTM from being built.

But now I get compile errors with nouveau drivers.

pv-ops dom 0 kernel 2.6.30-rc3:

In file included from drivers/gpu/drm/nouveau/nouveau_drv.c:30:
drivers/gpu/drm/nouveau/nouveau_drv.h:67: error: field 'bo' has incomplete type
drivers/gpu/drm/nouveau/nouveau_drv.h:68: error: field 'kmap' has incomplete type
drivers/gpu/drm/nouveau/nouveau_drv.h: In function 'nouveau_bo':
drivers/gpu/drm/nouveau/nouveau_drv.h:89: warning: type defaults to 'int' in declaration of '__mptr'
drivers/gpu/drm/nouveau/nouveau_drv.h:89: warning: initialization from incompatible pointer type
drivers/gpu/drm/nouveau/nouveau_drv.h: In function 'nvbo_kmap_obj_iovirtual':
drivers/gpu/drm/nouveau/nouveau_drv.h:103: error: implicit declaration of function 'ttm_kmap_obj_virtual'
drivers/gpu/drm/nouveau/nouveau_drv.h:104: warning: cast to pointer from integer of different size
drivers/gpu/drm/nouveau/nouveau_drv.h: At top level:
drivers/gpu/drm/nouveau/nouveau_drv.h:482: error: field 'mem_global_ref' has incomplete type
drivers/gpu/drm/nouveau/nouveau_drv.h:483: error: field 'bo_global_ref' has incomplete type
drivers/gpu/drm/nouveau/nouveau_drv.h:484: error: field 'bdev' has incomplete type
drivers/gpu/drm/nouveau/nouveau_drv.h: In function 'nouveau_bdev':
drivers/gpu/drm/nouveau/nouveau_drv.h:577: warning: type defaults to 'int' in declaration of '__mptr'
drivers/gpu/drm/nouveau/nouveau_drv.h:577: warning: initialization from incompatible pointer type
drivers/gpu/drm/nouveau/nouveau_drv.h: In function 'nouveau_bo_ref':
drivers/gpu/drm/nouveau/nouveau_drv.h:589: error: implicit declaration of function 'ttm_bo_reference'
drivers/gpu/drm/nouveau/nouveau_drv.h:589: warning: passing argument 1 of 'nouveau_bo' makes pointer from integer without a cast
drivers/gpu/drm/nouveau/nouveau_drv.h:87: note: expected 'struct ttm_buffer_object *' but argument is of type 'int'
drivers/gpu/drm/nouveau/nouveau_drv.h:593: error: implicit declaration of function 'ttm_bo_unref'
drivers/gpu/drm/nouveau/nouveau_drv.c: In function 'nouveau_pci_suspend':
drivers/gpu/drm/nouveau/nouveau_drv.c:116: error: implicit declaration of function 'ttm_bo_evict_mm'
drivers/gpu/drm/nouveau/nouveau_drv.c:116: error: 'TTM_PL_VRAM' undeclared (first use in this function)
drivers/gpu/drm/nouveau/nouveau_drv.c:116: error: (Each undeclared identifier is reported only once
drivers/gpu/drm/nouveau/nouveau_drv.c:116: error: for each function it appears in.)
make[4]: *** [drivers/gpu/drm/nouveau/nouveau_drv.o] Error 1
make[3]: *** [drivers/gpu/drm/nouveau] Error 2
make[2]: *** [drivers/gpu/drm] Error 2
make[1]: *** [drivers/gpu] Error 2
make: *** [drivers] Error 2

pv-ops dom 0 kernel 2.6.31-rc6:

In file included from drivers/gpu/drm/nouveau/nouveau_drv.c:30:
drivers/gpu/drm/nouveau/nouveau_drv.h:67: error: field 'bo' has incomplete type
drivers/gpu/drm/nouveau/nouveau_drv.h:68: error: field 'kmap' has incomplete type
drivers/gpu/drm/nouveau/nouveau_drv.h: In function 'nouveau_bo':
drivers/gpu/drm/nouveau/nouveau_drv.h:89: warning: type defaults to 'int' in declaration of '__mptr'
drivers/gpu/drm/nouveau/nouveau_drv.h:89: warning: initialization from incompatible pointer type
drivers/gpu/drm/nouveau/nouveau_drv.h: In function 'nvbo_kmap_obj_iovirtual':
drivers/gpu/drm/nouveau/nouveau_drv.h:103: error: implicit declaration of function 'ttm_kmap_obj_virtual'
drivers/gpu/drm/nouveau/nouveau_drv.h:104: warning: cast to pointer from integer of different size
drivers/gpu/drm/nouveau/nouveau_drv.h: At top level:
drivers/gpu/drm/nouveau/nouveau_drv.h:482: error: field 'mem_global_ref' has incomplete type
drivers/gpu/drm/nouveau/nouveau_drv.h:483: error: field 'bo_global_ref' has incomplete type
drivers/gpu/drm/nouveau/nouveau_drv.h:484: error: field 'bdev' has incomplete type
drivers/gpu/drm/nouveau/nouveau_drv.h: In function 'nouveau_bdev':
drivers/gpu/drm/nouveau/nouveau_drv.h:577: warning: type defaults to 'int' in declaration of '__mptr'
drivers/gpu/drm/nouveau/nouveau_drv.h:577: warning: initialization from incompatible pointer type
drivers/gpu/drm/nouveau/nouveau_drv.h: In function 'nouveau_bo_ref':
drivers/gpu/drm/nouveau/nouveau_drv.h:589: error: implicit declaration of function 'ttm_bo_reference'
drivers/gpu/drm/nouveau/nouveau_drv.h:589: warning: passing argument 1 of 'nouveau_bo' makes pointer from integer without a cast
drivers/gpu/drm/nouveau/nouveau_drv.h:87: note: expected 'struct ttm_buffer_object *' but argument is of type 'int'
drivers/gpu/drm/nouveau/nouveau_drv.h:593: error: implicit declaration of function 'ttm_bo_unref'
drivers/gpu/drm/nouveau/nouveau_drv.c: In function 'nouveau_pci_suspend':
drivers/gpu/drm/nouveau/nouveau_drv.c:116: error: implicit declaration of function 'ttm_bo_evict_mm'
drivers/gpu/drm/nouveau/nouveau_drv.c:116: error: 'TTM_PL_VRAM' undeclared (first use in this function)
drivers/gpu/drm/nouveau/nouveau_drv.c:116: error: (Each undeclared identifier is reported only once
drivers/gpu/drm/nouveau/nouveau_drv.c:116: error: for each function it appears in.)
make[4]: *** [drivers/gpu/drm/nouveau/nouveau_drv.o] Error 1
make[3]: *** [drivers/gpu/drm/nouveau] Error 2
make[2]: *** [drivers/gpu/drm] Error 2
make[1]: *** [drivers/gpu] Error 2
make: *** [drivers] Error 2



 From the error messages above, it appears that nouveau drivers depended on TTM GPU video memory management driver code. Hence, I cannot exclude TTM from being compiled.

But I get TTM build errors. And hence my nouveau drivers cannot be compiled, since it depended on TTM for graphics processor video memory management.

How can I resolve this? Is it possible that nouveau display drivers are not compatible with Xen paravirt-ops dom 0 kernels just like official NVIDIA display drivers?

If this is the case, I would have to change my graphics card to one which is supported under pv_ops kernel. I had chosen NVIDIA on first instinct because it historically supports Linux.

I would like to keep my NVIDIA card, so are there any patches for ttm code?

Thank you.


-- 
Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics Engineering) BEng(Hons)(Mechanical Engineering)
Technical Support Engineer
Information Technology Department
Asiasoft Online Pte Ltd
Tampines Central 1 #04-01 Tampines Plaza
Singapore 529541
Republic of Singapore
Mobile: +65-9648-9798
MSN: teoenming@hotmail.com
Alma Maters: Singapore Polytechnic, National University of Singapore



On 08/22/2009 06:44 PM, Mr. Teo En Ming (Zhang Enming) wrote:
> Dear Xen developers,
>
> I am using Xen paravirt-operations domain 0 kernels 2.6.30-rc3 and 
> 2.6.31-rc6 cloned from Jeremy Fitzhardinge's kernel git tree.
>
> I am trying to compile the nouveau open source drivers for NVIDIA 
> graphics cards.
>
> I am following the nouveau kernel module build instructions at 
> http://nouveau.freedesktop.org/wiki/InstallDRM
>
> Specifically, I am following Section
>
>
>       3.2. Alt: Rebuilding your existing kernel with new DRM and
>       Nouveau parts
>
>
> in the nouveau kernel module build instructions.
>
> However, when I am compiling the kernel and kernel modules (using 
> make), it encountered an error with the translation-table map (TTM) 
> GPU video memory management driver.
>
> *** How can I exclude TTM from being built? ***
>
> pv-ops kernel 2.6.30-rc3:-
>
> In file included from 
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/agp.h:8,
> from drivers/gpu/drm/ttm/ttm_agp_backend.c:39:
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> In function 'get_dma_ops':
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:29: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:32: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> In function 'dma_mapping_error':
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:40: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:41: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> At top level:
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:58: 
> warning: 'enum dma_data_direction' declared inside parameter list
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:58: 
> error: parameter 4 ('dir') has incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> In function 'dma_map_single':
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:64: 
> error: implicit declaration of function 'valid_dma_direction'
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:65: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> At top level:
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:76: 
> warning: 'enum dma_data_direction' declared inside parameter list
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:76: 
> error: parameter 4 ('dir') has incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> In function 'dma_unmap_single':
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:81: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:82: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> At top level:
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:88: 
> warning: 'enum dma_data_direction' declared inside parameter list
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:88: 
> error: parameter 4 ('dir') has incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> In function 'dma_map_sg':
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:99: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> At top level:
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:107: 
> warning: 'enum dma_data_direction' declared inside parameter list
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:107: 
> error: parameter 4 ('dir') has incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> In function 'dma_unmap_sg':
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:113: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:114: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> At top level:
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:119: 
> warning: 'enum dma_data_direction' declared inside parameter list
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:119: 
> error: parameter 4 ('dir') has incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> In function 'dma_sync_single_for_cpu':
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:124: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:125: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> At top level:
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:132: 
> warning: 'enum dma_data_direction' declared inside parameter list
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:132: 
> error: parameter 4 ('dir') has incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> In function 'dma_sync_single_for_device':
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:137: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:138: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> At top level:
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:146: 
> warning: 'enum dma_data_direction' declared inside parameter list
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:146: 
> error: parameter 5 ('dir') has incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> In function 'dma_sync_single_range_for_cpu':
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:151: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:152: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> At top level:
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:162: 
> warning: 'enum dma_data_direction' declared inside parameter list
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:162: 
> error: parameter 5 ('dir') has incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> In function 'dma_sync_single_range_for_device':
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:167: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:168: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> At top level:
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:177: 
> warning: 'enum dma_data_direction' declared inside parameter list
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:177: 
> error: parameter 4 ('dir') has incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> In function 'dma_sync_sg_for_cpu':
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:182: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:183: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> At top level:
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:190: 
> warning: 'enum dma_data_direction' declared inside parameter list
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:190: 
> error: parameter 4 ('dir') has incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> In function 'dma_sync_sg_for_device':
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:195: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:196: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> At top level:
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:204: 
> warning: 'enum dma_data_direction' declared inside parameter list
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:204: 
> error: parameter 5 ('dir') has incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> In function 'dma_map_page':
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:211: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> At top level:
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:218: 
> warning: 'enum dma_data_direction' declared inside parameter list
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:218: 
> error: parameter 4 ('dir') has incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> In function 'dma_unmap_page':
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:223: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:224: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> At top level:
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:230: 
> warning: 'enum dma_data_direction' declared inside parameter list
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:230: 
> error: parameter 4 ('dir') has incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> In function 'dma_alloc_coherent_mask':
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:247: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:249: 
> error: implicit declaration of function 'DMA_BIT_MASK'
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> In function 'dma_alloc_coherent':
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:284: 
> error: implicit declaration of function 'is_device_dma_capable'
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:287: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:290: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h: 
> In function 'dma_free_coherent':
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:308: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.30-rc3-enming.teo-tip/arch/x86/include/asm/dma-mapping.h:309: 
> error: dereferencing pointer to incomplete type
> drivers/gpu/drm/ttm/ttm_agp_backend.c: In function 'ttm_agp_populate':
> drivers/gpu/drm/ttm/ttm_agp_backend.c:66: error: 'struct agp_memory' 
> has no member named 'pages'
> make[4]: *** [drivers/gpu/drm/ttm/ttm_agp_backend.o] Error 1
> make[3]: *** [drivers/gpu/drm/ttm] Error 2
> make[2]: *** [drivers/gpu/drm] Error 2
> make[1]: *** [drivers/gpu] Error 2
> make: *** [drivers] Error 2
>
> pv-ops kernel 2.6.31-rc6:-
>
> In file included from 
> /usr/src/kernels/2.6.31-rc6-enming.teo/arch/x86/include/asm/agp.h:8,
> from drivers/gpu/drm/ttm/ttm_agp_backend.c:39:
> /usr/src/kernels/2.6.31-rc6-enming.teo/arch/x86/include/asm/dma-mapping.h: 
> In function 'dma_mapping_error':
> /usr/src/kernels/2.6.31-rc6-enming.teo/arch/x86/include/asm/dma-mapping.h:42: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.31-rc6-enming.teo/arch/x86/include/asm/dma-mapping.h:43: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.31-rc6-enming.teo/arch/x86/include/asm/dma-mapping.h: 
> At top level:
> /usr/src/kernels/2.6.31-rc6-enming.teo/arch/x86/include/asm/dma-mapping.h:60: 
> warning: 'enum dma_data_direction' declared inside parameter list
> /usr/src/kernels/2.6.31-rc6-enming.teo/arch/x86/include/asm/dma-mapping.h:60: 
> error: parameter 4 ('dir') has incomplete type
> /usr/src/kernels/2.6.31-rc6-enming.teo/arch/x86/include/asm/dma-mapping.h: 
> In function 'dma_alloc_coherent_mask':
> /usr/src/kernels/2.6.31-rc6-enming.teo/arch/x86/include/asm/dma-mapping.h:77: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.31-rc6-enming.teo/arch/x86/include/asm/dma-mapping.h:79: 
> error: implicit declaration of function 'DMA_BIT_MASK'
> /usr/src/kernels/2.6.31-rc6-enming.teo/arch/x86/include/asm/dma-mapping.h: 
> In function 'dma_alloc_coherent':
> /usr/src/kernels/2.6.31-rc6-enming.teo/arch/x86/include/asm/dma-mapping.h:114: 
> error: implicit declaration of function 'is_device_dma_capable'
> /usr/src/kernels/2.6.31-rc6-enming.teo/arch/x86/include/asm/dma-mapping.h:117: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.31-rc6-enming.teo/arch/x86/include/asm/dma-mapping.h:120: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.31-rc6-enming.teo/arch/x86/include/asm/dma-mapping.h: 
> In function 'dma_free_coherent':
> /usr/src/kernels/2.6.31-rc6-enming.teo/arch/x86/include/asm/dma-mapping.h:138: 
> error: dereferencing pointer to incomplete type
> /usr/src/kernels/2.6.31-rc6-enming.teo/arch/x86/include/asm/dma-mapping.h:139: 
> error: dereferencing pointer to incomplete type
> make[4]: *** [drivers/gpu/drm/ttm/ttm_agp_backend.o] Error 1
> make[3]: *** [drivers/gpu/drm/ttm] Error 2
> make[2]: *** [drivers/gpu/drm] Error 2
> make[1]: *** [drivers/gpu] Error 2
> make: *** [drivers] Error 2
>
> I would like to exclude TTM from being compiled. May I know which 
> build scripts do I modify?
>
> I tried renaming drivers/gpu/ttm to drivers/gpu/ttm_orig in the kernel 
> souces but it doesn't work.
> scripts/Makefile.build:44: 
> /usr/src/kernels/2.6.31-rc6-enming.teo/drivers/gpu/drm/ttm/Makefile: 
> No such file or directory
> make[4]: *** No rule to make target 
> `/usr/src/kernels/2.6.31-rc6-enming.teo/drivers/gpu/drm/ttm/Makefile'.  Stop.
> make[3]: *** [drivers/gpu/drm/ttm] Error 2
> make[2]: *** [drivers/gpu/drm] Error 2
> make[1]: *** [drivers/gpu] Error 2
> make: *** [drivers] Error 2
>
>
> It simply complains that ttm directory cannot be found and Makefile in 
> ttm dir does not exist. This is of course due to me renaming the ttm 
> directory in the kernel sources. I want to prevent ttm from being built.
>
> Thank you very much.
>
> Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics Engineering) BEng(Hons)(Mechanical Engineering)
> Technical Support Engineer
> Information Technology Department
> Asiasoft Online Pte Ltd
> Tampines Central 1 #04-01 Tampines Plaza
> Singapore 529541
> Republic of Singapore
> Mobile: +65-9648-9798
> MSN:teoenming@hotmail.com
> Alma Maters: Singapore Polytechnic, National University of Singapore
>    
> ------------------------------------------------------------------------
>
> _______________________________________________
> Xen-devel mailing list
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> http://lists.xensource.com/xen-devel
>    



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