diff options
Diffstat (limited to 'hw/pci')
| -rw-r--r-- | hw/pci/msi.c | 12 | ||||
| -rw-r--r-- | hw/pci/pcie_aer.c | 2 | ||||
| -rw-r--r-- | hw/pci/shpc.c | 10 | ||||
| -rw-r--r-- | hw/pci/slotid_cap.c | 2 |
4 files changed, 13 insertions, 13 deletions
diff --git a/hw/pci/msi.c b/hw/pci/msi.c index 916e1a1e5b..2949938223 100644 --- a/hw/pci/msi.c +++ b/hw/pci/msi.c @@ -72,7 +72,7 @@ static inline uint8_t msi_cap_sizeof(uint16_t flags) static inline unsigned int msi_nr_vectors(uint16_t flags) { return 1U << - ((flags & PCI_MSI_FLAGS_QSIZE) >> (ffs(PCI_MSI_FLAGS_QSIZE) - 1)); + ((flags & PCI_MSI_FLAGS_QSIZE) >> ctz32(PCI_MSI_FLAGS_QSIZE)); } static inline uint8_t msi_flags_off(const PCIDevice* dev) @@ -175,9 +175,9 @@ int msi_init(struct PCIDevice *dev, uint8_t offset, assert(nr_vectors > 0); assert(nr_vectors <= PCI_MSI_VECTORS_MAX); /* the nr of MSI vectors is up to 32 */ - vectors_order = ffs(nr_vectors) - 1; + vectors_order = ctz32(nr_vectors); - flags = vectors_order << (ffs(PCI_MSI_FLAGS_QMASK) - 1); + flags = vectors_order << ctz32(PCI_MSI_FLAGS_QMASK); if (msi64bit) { flags |= PCI_MSI_FLAGS_64BIT; } @@ -355,12 +355,12 @@ void msi_write_config(PCIDevice *dev, uint32_t addr, uint32_t val, int len) * just don't crash the host */ log_num_vecs = - (flags & PCI_MSI_FLAGS_QSIZE) >> (ffs(PCI_MSI_FLAGS_QSIZE) - 1); + (flags & PCI_MSI_FLAGS_QSIZE) >> ctz32(PCI_MSI_FLAGS_QSIZE); log_max_vecs = - (flags & PCI_MSI_FLAGS_QMASK) >> (ffs(PCI_MSI_FLAGS_QMASK) - 1); + (flags & PCI_MSI_FLAGS_QMASK) >> ctz32(PCI_MSI_FLAGS_QMASK); if (log_num_vecs > log_max_vecs) { flags &= ~PCI_MSI_FLAGS_QSIZE; - flags |= log_max_vecs << (ffs(PCI_MSI_FLAGS_QSIZE) - 1); + flags |= log_max_vecs << ctz32(PCI_MSI_FLAGS_QSIZE); pci_set_word(dev->config + msi_flags_off(dev), flags); } diff --git a/hw/pci/pcie_aer.c b/hw/pci/pcie_aer.c index eaa3e6ea94..b48c09cd11 100644 --- a/hw/pci/pcie_aer.c +++ b/hw/pci/pcie_aer.c @@ -410,7 +410,7 @@ static void pcie_aer_msg(PCIDevice *dev, const PCIEAERMsg *msg) static void pcie_aer_update_log(PCIDevice *dev, const PCIEAERErr *err) { uint8_t *aer_cap = dev->config + dev->exp.aer_cap; - uint8_t first_bit = ffs(err->status) - 1; + uint8_t first_bit = ctz32(err->status); uint32_t errcap = pci_get_long(aer_cap + PCI_ERR_CAP); int i; diff --git a/hw/pci/shpc.c b/hw/pci/shpc.c index 759910f79a..a706486394 100644 --- a/hw/pci/shpc.c +++ b/hw/pci/shpc.c @@ -61,7 +61,7 @@ /* Same slot state masks are used for command and status registers */ #define SHPC_SLOT_STATE_MASK 0x03 #define SHPC_SLOT_STATE_SHIFT \ - (ffs(SHPC_SLOT_STATE_MASK) - 1) + ctz32(SHPC_SLOT_STATE_MASK) #define SHPC_STATE_NO 0x0 #define SHPC_STATE_PWRONLY 0x1 @@ -70,10 +70,10 @@ #define SHPC_SLOT_PWR_LED_MASK 0xC #define SHPC_SLOT_PWR_LED_SHIFT \ - (ffs(SHPC_SLOT_PWR_LED_MASK) - 1) + ctz32(SHPC_SLOT_PWR_LED_MASK) #define SHPC_SLOT_ATTN_LED_MASK 0x30 #define SHPC_SLOT_ATTN_LED_SHIFT \ - (ffs(SHPC_SLOT_ATTN_LED_MASK) - 1) + ctz32(SHPC_SLOT_ATTN_LED_MASK) #define SHPC_LED_NO 0x0 #define SHPC_LED_ON 0x1 @@ -136,7 +136,7 @@ static int roundup_pow_of_two(int x) static uint16_t shpc_get_status(SHPCDevice *shpc, int slot, uint16_t msk) { uint8_t *status = shpc->config + SHPC_SLOT_STATUS(slot); - return (pci_get_word(status) & msk) >> (ffs(msk) - 1); + return (pci_get_word(status) & msk) >> ctz32(msk); } static void shpc_set_status(SHPCDevice *shpc, @@ -144,7 +144,7 @@ static void shpc_set_status(SHPCDevice *shpc, { uint8_t *status = shpc->config + SHPC_SLOT_STATUS(slot); pci_word_test_and_clear_mask(status, msk); - pci_word_test_and_set_mask(status, value << (ffs(msk) - 1)); + pci_word_test_and_set_mask(status, value << ctz32(msk)); } static void shpc_interrupt_update(PCIDevice *d) diff --git a/hw/pci/slotid_cap.c b/hw/pci/slotid_cap.c index 62f7bae2f1..1c01d346c9 100644 --- a/hw/pci/slotid_cap.c +++ b/hw/pci/slotid_cap.c @@ -3,7 +3,7 @@ #include "qemu/error-report.h" #define SLOTID_CAP_LENGTH 4 -#define SLOTID_NSLOTS_SHIFT (ffs(PCI_SID_ESR_NSLOTS) - 1) +#define SLOTID_NSLOTS_SHIFT ctz32(PCI_SID_ESR_NSLOTS) int slotid_cap_init(PCIDevice *d, int nslots, uint8_t chassis, |