diff options
| author | Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru> | 2023-02-16 21:03:48 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2023-03-02 03:10:49 -0500 |
| commit | f90d932094c03cb2ebb856a6da4ad0a5b05d9c27 (patch) | |
| tree | 7da97def18c5f35f6fb15826e19048528b19651a /hw/pci | |
| parent | 6b72b84d089331f4c49b68fac0f7c5d25748ae46 (diff) | |
pcie: pcie_cap_slot_enable_power() use correct helper
*_by_mask() helpers shouldn't be used here (and that's the only one).
*_by_mask() helpers do shift their value argument, but in pcie.c code
we use values that are already shifted appropriately.
Happily, PCI_EXP_SLTCTL_PWR_ON is zero, so shift doesn't matter. But if
we apply same helper for PCI_EXP_SLTCTL_PWR_OFF constant it will do
wrong thing.
So, let's use instead pci_word_test_and_clear_mask() which is already
used in the file to clear PCI_EXP_SLTCTL_PWR_OFF bit in
pcie_cap_slot_init() and pcie_cap_slot_reset().
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Anton Kuchin <antonkuchin@yandex-team.ru>
Message-Id: <20230216180356.156832-11-vsementsov@yandex-team.ru>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/pci')
| -rw-r--r-- | hw/pci/pcie.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c index ccdb2377e1..db8360226f 100644 --- a/hw/pci/pcie.c +++ b/hw/pci/pcie.c @@ -373,8 +373,8 @@ void pcie_cap_slot_enable_power(PCIDevice *dev) uint32_t sltcap = pci_get_long(exp_cap + PCI_EXP_SLTCAP); if (sltcap & PCI_EXP_SLTCAP_PCP) { - pci_set_word_by_mask(exp_cap + PCI_EXP_SLTCTL, - PCI_EXP_SLTCTL_PCC, PCI_EXP_SLTCTL_PWR_ON); + pci_word_test_and_clear_mask(exp_cap + PCI_EXP_SLTCTL, + PCI_EXP_SLTCTL_PCC); } } |