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| author | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-10-01 11:22:34 -0400 |
|---|---|---|
| committer | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-10-01 11:22:34 -0400 |
| commit | 9cd0da4672ed9338a8466a2dda3aa88105984fdb (patch) | |
| tree | cfb55e666bdb0df9b8f42dc8607b982d0382aa99 /kernel | |
| parent | e1faf53570921347f0acf98bcb3e0ee48f2f6981 (diff) | |
| download | open-iov-9cd0da4672ed9338a8466a2dda3aa88105984fdb.tar.gz open-iov-9cd0da4672ed9338a8466a2dda3aa88105984fdb.zip | |
gsp-phys: accept the real GSP-RM sequencer buffer size in stage 3e
The live 0x1002 element carries bufferSizeDWord=0x3FE2 (16354) - the size
of GSP-RM's own command buffer, not the message. The executor's 0x1000
sanity cap refused it, so the sequencer was never run and GSP_INIT_DONE
was never observed. The reference imposes no upper bound (only nonzero and
greater than cmdIndex); raise the cap to a sanity ceiling and document
that the real execution bound is cmdIndex against the element payload.
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/gsp_phys_booter.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/kernel/gsp_phys_booter.c b/kernel/gsp_phys_booter.c index 6eb83cb..7966bc8 100644 --- a/kernel/gsp_phys_booter.c +++ b/kernel/gsp_phys_booter.c @@ -212,8 +212,14 @@ bool gsp_phys_boot_requested(void) * by the command buffer (opcode dword + opcode-specific payload dwords). All * bounds and delays are hard-capped so a malformed element can never drive an * unbounded access. + * + * bufferSizeDWord is the size of GSP-RM's own sequencer buffer, not the + * message: the reference only requires it to be nonzero and greater than + * cmdIndex, and live GSP-RM reports 0x3FE2 (16354) on this TU104. The cap is + * therefore a sanity ceiling, not a protocol limit; the real execution bound + * is cmdIndex against the element payload length. */ -#define GSP_PHYS_SEQ_MAX_BUFFER_DWORDS 0x1000 +#define GSP_PHYS_SEQ_MAX_BUFFER_DWORDS 0x40000 #define GSP_PHYS_SEQ_REG_SAVE_SIZE 8 #define GSP_PHYS_SEQ_HALT_TIMEOUT_MS 5000 #define GSP_PHYS_SEQ_RESUME_TIMEOUT_MS 10000 |