OpenCL 1.2 CL_MAP_WRITE_INVALIDATE_REGION sounds a lot like PIPE_TRANSFER_DISCARD_RANGE:
>From OpenCL 1.2 spec: The contents of the region being mapped are to be discarded. >From p_defines.h: Discards the memory within the mapped region. v2: Move the code for validating flags to the front-end as suggested by Francisco Jerez --- src/gallium/state_trackers/clover/api/transfer.cpp | 13 +++++++++++++ src/gallium/state_trackers/clover/core/resource.cpp | 2 ++ 2 files changed, 15 insertions(+) diff --git a/src/gallium/state_trackers/clover/api/transfer.cpp b/src/gallium/state_trackers/clover/api/transfer.cpp index 07d8a73..37c3074 100644 --- a/src/gallium/state_trackers/clover/api/transfer.cpp +++ b/src/gallium/state_trackers/clover/api/transfer.cpp @@ -168,6 +168,17 @@ namespace { } /// + /// Checks that the mapping flags are correct + /// + void + validate_flags(const cl_map_flags flags) { + if (((flags & CL_MAP_WRITE) || (flags & CL_MAP_READ)) && + (flags & CL_MAP_WRITE_INVALIDATE_REGION)) + throw error(CL_INVALID_VALUE); + } + + + /// /// Class that encapsulates the task of mapping an object of type /// \a T. The return value of get() should be implicitly /// convertible to \a void *. @@ -629,6 +640,7 @@ clEnqueueMapBuffer(cl_command_queue d_q, cl_mem d_mem, cl_bool blocking, validate_common(q, deps); validate_object(q, mem, obj_origin, obj_pitch, region); + validate_flags(flags); void *map = mem.resource(q).add_map(q, flags, blocking, obj_origin, region); @@ -656,6 +668,7 @@ clEnqueueMapImage(cl_command_queue d_q, cl_mem d_mem, cl_bool blocking, validate_common(q, deps); validate_object(q, img, origin, region); + validate_flags(flags); void *map = img.resource(q).add_map(q, flags, blocking, origin, region); diff --git a/src/gallium/state_trackers/clover/core/resource.cpp b/src/gallium/state_trackers/clover/core/resource.cpp index 7b8a40a..34c0cd5 100644 --- a/src/gallium/state_trackers/clover/core/resource.cpp +++ b/src/gallium/state_trackers/clover/core/resource.cpp @@ -174,6 +174,8 @@ mapping::mapping(command_queue &q, resource &r, pctx(q.pipe) { unsigned usage = ((flags & CL_MAP_WRITE ? PIPE_TRANSFER_WRITE : 0 ) | (flags & CL_MAP_READ ? PIPE_TRANSFER_READ : 0 ) | + (flags & CL_MAP_WRITE_INVALIDATE_REGION ? + PIPE_TRANSFER_DISCARD_RANGE : 0) | (!blocking ? PIPE_TRANSFER_UNSYNCHRONIZED : 0)); p = pctx->transfer_map(pctx, r.pipe, 0, usage, -- 2.0.4 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev