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| author | John Snow <jsnow@redhat.com> | 2015-02-05 12:41:18 -0500 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2015-02-16 15:07:17 +0000 |
| commit | 89a46723668a35db3eac5cb59b32ba67948dee0d (patch) | |
| tree | ebcd6fc79412cf7824996d6deaf32188ba9d9f27 /tests/libqos/ahci.c | |
| parent | 5bf99aa1cf67a210dd441ae4edf1e26df05360d5 (diff) | |
| download | qemu-89a46723668a35db3eac5cb59b32ba67948dee0d.zip qemu-89a46723668a35db3eac5cb59b32ba67948dee0d.tar.gz qemu-89a46723668a35db3eac5cb59b32ba67948dee0d.tar.bz2 | |
libqos/ahci: Add port_check_nonbusy helper
A simple helper that asserts a given port is not busy processing any
commands via the TFD, Command Issue and SACT registers.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1423158090-25580-8-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'tests/libqos/ahci.c')
| -rw-r--r-- | tests/libqos/ahci.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tests/libqos/ahci.c b/tests/libqos/ahci.c index ef84cc6..7ed6494 100644 --- a/tests/libqos/ahci.c +++ b/tests/libqos/ahci.c @@ -347,6 +347,24 @@ void ahci_port_check_interrupts(AHCIQState *ahci, uint8_t port, g_assert_cmphex(ahci_px_rreg(ahci, port, AHCI_PX_IS), ==, 0); } +void ahci_port_check_nonbusy(AHCIQState *ahci, uint8_t port, uint8_t slot) +{ + uint32_t reg; + + /* Assert that the command slot is no longer busy (NCQ) */ + reg = ahci_px_rreg(ahci, port, AHCI_PX_SACT); + ASSERT_BIT_CLEAR(reg, (1 << slot)); + + /* Non-NCQ */ + reg = ahci_px_rreg(ahci, port, AHCI_PX_CI); + ASSERT_BIT_CLEAR(reg, (1 << slot)); + + /* And assert that we are generally not busy. */ + reg = ahci_px_rreg(ahci, port, AHCI_PX_TFD); + ASSERT_BIT_CLEAR(reg, AHCI_PX_TFD_STS_BSY); + ASSERT_BIT_CLEAR(reg, AHCI_PX_TFD_STS_DRQ); +} + /* Get the command in #slot of port #port. */ void ahci_get_command_header(AHCIQState *ahci, uint8_t port, uint8_t slot, AHCICommandHeader *cmd) |