2 # DSP Bridge Driver Support
6 tristate "DSP Bridge driver"
7 depends on ARCH_OMAP3 && !ARCH_MULTIPLATFORM && BROKEN
11 DSP/BIOS Bridge is designed for platforms that contain a GPP and
12 one or more attached DSPs. The GPP is considered the master or
13 "host" processor, and the attached DSPs are processing resources
14 that can be utilized by applications and drivers running on the GPP.
16 This driver depends on OMAP Mailbox (OMAP_MBOX_FWK).
18 config TIDSPBRIDGE_DVFS
19 bool "Enable Bridge Dynamic Voltage and Frequency Scaling (DVFS)"
20 depends on TIDSPBRIDGE && OMAP_PM_SRF && CPU_FREQ
22 DVFS allows DSP Bridge to initiate the operating point change to
23 scale the chip voltage and frequency in order to match the
24 performance and power consumption to the current processing
27 config TIDSPBRIDGE_MEMPOOL_SIZE
28 hex "Physical memory pool size (Byte)"
29 depends on TIDSPBRIDGE
32 Allocate specified size of memory at booting time to avoid allocation
33 failure under heavy memory fragmentation after some use time.
35 config TIDSPBRIDGE_RECOVERY
36 bool "Recovery Support"
37 depends on TIDSPBRIDGE
40 In case of DSP fatal error, BRIDGE driver will try to
43 config TIDSPBRIDGE_CACHE_LINE_CHECK
44 bool "Check buffers to be 128 byte aligned"
45 depends on TIDSPBRIDGE
47 When the DSP processes data, the DSP cache controller loads 128-Byte
48 chunks (lines) from SDRAM and writes the data back in 128-Byte chunks.
49 If a DMM buffer does not start and end on a 128-Byte boundary, the data
50 preceding the start address (SA) from the 128-Byte boundary to the SA
51 and the data at addresses trailing the end address (EA) from the EA to
52 the next 128-Byte boundary will be loaded and written back as well.
53 This can lead to heap corruption. Say Y, to enforce the check for 128
54 byte alignment, buffers failing this check will be rejected.
56 config TIDSPBRIDGE_NTFY_PWRERR
57 bool "Notify power errors"
58 depends on TIDSPBRIDGE
60 Enable notifications to registered clients on the event of power error
61 trying to suspend bridge driver. Say Y, to signal this event as a fatal
62 error, this will require a bridge restart to recover.
64 config TIDSPBRIDGE_BACKTRACE
65 bool "Dump backtraces on fatal errors"
66 depends on TIDSPBRIDGE
68 Enable useful information to backtrace fatal errors. Say Y if you
69 want to dump information for testing purposes.