Lines Matching refs:by

2   Using physical DMA provided by OHCI-1394 FireWire controllers for debugging
11 a "Physical Response Unit" which executes specific requests by employing
12 PCI-Bus master DMA after applying filters defined by the OHCI-1394 driver.
19 With that, it is possible to debug issues by reading interesting memory
31 physical addresses above 4 GB, but this feature is currently not enabled by
44 DMA by default, which is more secure but not suitable for remote debugging.
59 firescope - Originally developed by Benjamin Herrenschmidt, Andi Kleen ported
71 data which can be referenced from symbols found by gdb in vmlinux:
89 Step-by-step instructions for using firescope with early OHCI initialization:
108    required for physical DMA above 4 GB (but not utilized by Linux yet).
166    Then, on the debugging host, run firescope, for example by using -A: