xref: /OK3568_Linux_fs/kernel/drivers/gpu/arm/mali400/ump/readme.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593SmuzhiyunBuilding the UMP Device Driver for Linux
2*4882a593Smuzhiyun----------------------------------------
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4*4882a593SmuzhiyunBuild the UMP Device Driver for Linux by running the following make command:
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6*4882a593SmuzhiyunKDIR=<kdir_path> CONFIG=<your_config> BUILD=<build_option> make
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8*4882a593Smuzhiyunwhere
9*4882a593Smuzhiyun    kdir_path: Path to your Linux Kernel directory
10*4882a593Smuzhiyun    your_config: Name of the sub-folder to find the required config.h file
11*4882a593Smuzhiyun                 ("arch-" will be prepended)
12*4882a593Smuzhiyun    build_option: debug or release. Debug is default.
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14*4882a593SmuzhiyunThe config.h contains following configuration parameters:
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16*4882a593SmuzhiyunARCH_UMP_BACKEND_DEFAULT
17*4882a593Smuzhiyun    0 specifies the dedicated memory allocator.
18*4882a593Smuzhiyun    1 specifies the OS memory allocator.
19*4882a593SmuzhiyunARCH_UMP_MEMORY_ADDRESS_DEFAULT
20*4882a593Smuzhiyun    This is only required for the dedicated memory allocator, and specifies
21*4882a593Smuzhiyun    the physical start address of the memory block reserved for UMP.
22*4882a593SmuzhiyunARCH_UMP_MEMORY_SIZE_DEFAULT
23*4882a593Smuzhiyun    This specified the size of the memory block reserved for UMP, or the
24*4882a593Smuzhiyun    maximum limit for allocations from the OS.
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26*4882a593SmuzhiyunThe result will be a ump.ko file, which can be loaded into the Linux kernel
27*4882a593Smuzhiyunby using the insmod command. The driver can also be built as a part of the
28*4882a593Smuzhiyunkernel itself.
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