NV services: Difference between revisions
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|- | |- | ||
| /dev/nvhost-display || Display | | /dev/nvhost-display || Display | ||
|- | |||
| /dev/nvhost-tsec || TSEC | |||
|} | |} | ||
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struct { | struct { | ||
__in u32 num_entries; | __in u32 num_entries; | ||
__in u32 flags; | __in u32 flags; // bit0: vpr_enabled | ||
}; | }; | ||
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union { | union { | ||
__out u32 detailed_error; | __out u32 detailed_error; | ||
__in u32 flags; | __in u32 flags; // bit0: fence_wait, bit1: fence_get, bit2: hw_format, bit3: sync_fence, bit4: suppress_wfi, bit5: skip_buffer_refcounting | ||
}; | }; | ||
__inout struct fence fence_out; // returned new fence object for others to wait on | __inout struct fence fence_out; // returned new fence object for others to wait on | ||
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struct { | struct { | ||
__out u32 error_info[32]; // first word is an error code (0=no_error, 1= | __out u32 error_info[32]; // first word is an error code (0=no_error, 1=mmu_error, 2=gr_error, 3=pbdma_error, 4=timeout) | ||
}; | }; | ||
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__in u32 num_entries; | __in u32 num_entries; | ||
__in u32 num_jobs; | __in u32 num_jobs; | ||
__in u32 flags; | __in u32 flags; // bit0: vpr_enabled | ||
__out struct fence fence_out; // returned new fence object for others to wait on | __out struct fence fence_out; // returned new fence object for others to wait on | ||
__in u32 reserved[3]; // ignored | __in u32 reserved[3]; // ignored | ||
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When the gpfifo data in the gpu_va buffers specified by the submitted gpfifo entries is invalid(?), eventually the user-process will be force-terminated after using the submit-gpfifo ioctl. It's unknown how exactly this is done. | When the gpfifo data in the gpu_va buffers specified by the submitted gpfifo entries is invalid(?), eventually the user-process will be force-terminated after using the submit-gpfifo ioctl. It's unknown how exactly this is done. | ||
GPU rendering (GPFIFO) is only used by applets/Applications. All sysmodules doing any gfx-display uses software rendering. During system-boot, GPU GPFIFO is not used until the applets are launched. | |||
[[Category:Services]] | [[Category:Services]] | ||