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m1n1.fw.asc.ioreporting: Support IOP provided buffers

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SMC provides buffer from its MMIO space. Since the macOS 13 SMC firmware
the firmware crashes when ACK-ing a GetBuf which provided a buffer.

Signed-off-by: Janne Grunau <j@jannau.net>
This commit is contained in:
Janne Grunau 2023-01-24 20:45:18 +01:00 committed by Hector Martin
parent 46f2811351
commit bf73c1416a
1 changed files with 9 additions and 3 deletions
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12
proxyclient/m1n1/fw/asc/ioreporting.py
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@ -31,9 +31,15 @@ class ASCIOReportingEndpoint(ASCBaseEndpoint):
self.log("WARNING: trying to reset iobuffer!")
self.bufsize = align(0x1000 * msg.SIZE, 0x4000)
self.iobuffer, self.iobuffer_dva = self.asc.ioalloc(self.bufsize)
self.log(f"buf {self.iobuffer:#x} / {self.iobuffer_dva:#x}")
self.send(IOReporting_GetBuf(DVA=self.iobuffer_dva, SIZE=self.bufsize // 0x1000))
if msg.DVA != 0:
self.iobuffer = self.iobuffer_dva = msg.DVA
self.log(f"buf {self.iobuffer:#x} / {self.iobuffer_dva:#x}")
else:
self.iobuffer, self.iobuffer_dva = self.asc.ioalloc(self.bufsize)
self.log(f"buf {self.iobuffer:#x} / {self.iobuffer_dva:#x}")
self.send(IOReporting_GetBuf(DVA=self.iobuffer_dva, SIZE=self.bufsize // 0x1000))
return True
@msg_handler(0xc, IOReporting_Start)