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To make the license statement consistent to each other, adjust
all license versions to v2.1+. Thus beignet should have a pure
LGPL v2.1+ license.
Signed-off-by: Zhigang Gong <zhigang.gong@intel.com>
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the backend need return the kernel FUNCTION ATTRIBUTE message to the
clGetKernelInfo.
there are 3 kind of function attribute so far, vec_type_hint parameter
is not available to return due to llvm lack of such info.
Signed-off-by: Luo <xionghu.luo@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>
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Signed-off-by: Zhigang Gong <zhigang.gong@intel.com>
Reviewed-by: Ruiling Song <ruiling.song@intel.com>
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1. Move the bti/Register map from gbe::Context to ir::Function.
2. use GlobalVariable instead of 'call' to get internal buffer (used for printf) base address.
Signed-off-by: Ruiling Song <ruiling.song@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>
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Previously, we simply map 2G surface for memory access,
which has obvious security issue, user can easily read/write graphics
memory that does not belong to him. To prevent such kind of behaviour,
We bind each surface to a dedicated bti. HW provides automatic
bounds check. For out-of-bound write, it will be ignored. And for read
out-of-bound, hardware will simply return zero value.
The idea behind the patch is for a load/store instruction, it will search
through the LLVM use-def chain until finding out where the address
comes from. Then the bti is saved in ir::Instruction and used for
the later code generation. And for mixed pointer case, a load/store
will access more than one bti.
To simplify some code, '0' is reserved for constant address space,
'1' is reserved for private address space. Other btis are assigned
automatically by backend.
Signed-off-by: Ruiling Song <ruiling.song@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>
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Signed-off-by: Junyan He <junyan.he@linux.intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>
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Signed-off-by: Junyan He <junyan.he@linux.intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>
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In libgbe.so and libgbeinterp.so, the same function pointer name
gbe_set_image_base_index is used for a unified source code.
In libcl.so, function pointer names begin with compiler_* point to
the functions from libgbe.so, function pointer names begin with
gbe_* point to the functions from libgbeinterp.so.
Signed-off-by: Guo Yejun <yejun.guo@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>
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On embedded/handheld devices, storage and memory are scarce, it is
necessary to provide only the OpenCL runtime library with small size,
and only the executable binary kernel will be supported on such device.
At the beginning of process (before function main), OpenCL runtime
(libcl.so) will try to load the compiler (libgbe.so), the system's
behavior is the same as before if successfully loaded, otherwise,
the runtime assumes no OpenCL compiler in the system, and the device
info will be changed as CL_DEVICE_COMPILER_AVAILABLE=false and
CL_DEVICE_PROFILE="EMBEDDED_PROFILE", the clBuildProgram returns
CL_COMPILER_NOT_AVAILABLE if the program is created with
clCreateProgramWithSource, following the OpenCL spec.
To simulate the case without OpenCL compiler, just delete the file
libgbe.so, or export OCL_NON_COMPILER=1.
Some explanation of the binary kernel interpreter (libinterp.a):
libinterp.a is used to interpret the binary kernel inside runtime,
and the runtime library libcl.so is built against libinterp.a.
Since the code to interpret binary kernel is tightly integrated inside
the compiler, to avoid code duplicate, a new file gbe_bin_interpreter.cpp
is created to include some other .cpp files; to make libinterp.a small
(the purpose to make libcl.so small), the macro GBE_COMPILER_AVAILABLE
is used to make only the needed code active when build for libinterp.a.
V2: code base is changed to call function gbe_set_image_base_index in
gbe_bin_generater, while this function is modified in this patch as
gbe_set_image_base_index_compiler, fix it accordingly.
Signed-off-by: Guo Yejun <yejun.guo@intel.com>
Reviewed-by: "Yang, Rong R" <rong.r.yang@intel.com>
Tested-by: Zhigang Gong <zhigang.gong@linux.intel.com>
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