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usb-ehci: improve mmio tracing

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Add a separate tracepoint to log how register values change in response
to a mmio write.  Especially useful for registers which have read-only
or clear-on-write bits in them.

No change in behavior.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2011-05-19 08:55:09 +02:00
parent dcbd0b5c0e
commit c4f8e21165
2 changed files with 8 additions and 11 deletions
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3
trace-events
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@ -197,7 +197,8 @@ disable sun4m_iommu_bad_addr(uint64_t addr) "bad addr %"PRIx64""
# hw/usb-ehci.c
disable usb_ehci_reset(void) "=== RESET ==="
disable usb_ehci_mmio_readl(uint32_t addr, const char *str, uint32_t val) "rd mmio %04x [%s] = %x"
disable usb_ehci_mmio_writel(uint32_t addr, const char *str, uint32_t val, uint32_t oldval) "wr mmio %04x [%s] = %x (old: %x)"
disable usb_ehci_mmio_writel(uint32_t addr, const char *str, uint32_t val) "wr mmio %04x [%s] = %x"
disable usb_ehci_mmio_change(uint32_t addr, const char *str, uint32_t new, uint32_t old) "ch mmio %04x [%s] = %x (old: %x)"
disable usb_ehci_usbsts(const char *sts, int state) "usbsts %s %d"
disable usb_ehci_state(const char *schedule, const char *state) "%s schedule %s"
disable usb_ehci_qh(uint32_t addr, uint32_t next, uint32_t c_qtd, uint32_t n_qtd, uint32_t a_qtd, int rl, int mplen, int eps, int ep, int devaddr, int c, int h, int dtc, int i) "QH @ %08x: next %08x qtds %08x,%08x,%08x - rl %d, mplen %d, eps %d, ep %d, dev %d, c %d, h %d, dtc %d, i %d"