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hv: code clean up regarding to % and / operations

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- Clean up some code regarding to % and / operations since bit
  operations are faster.
        x % 64U ---> x & 0x3fU
        x % 32U ---> x & 0x1fU
        x % 16U ---> x & 0xfU
        x % 8U  ---> x & 0x7U
        x % 4U  ---> x & 0x3U
        x % 2U  ---> x & 0x1U

        x / 64U ---> x >> 6U
        x / 32U ---> x >> 5U
        x / 16U ---> x >> 4U
        x / 8U  ---> x >> 3U
        x / 4U  ---> x >> 2U
        x / 2U  ---> x >> 1U
- Minor changes regarding to coding styles

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Shiqing Gao
2018-08-21 13:36:45 +08:00
committed by lijinxia
parent 0c630d9003
commit 42aaf5d46f
10 changed files with 39 additions and 36 deletions
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4
hypervisor/dm/vioapic.c
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@@ -259,9 +259,9 @@ vioapic_indirect_read(struct vioapic *vioapic, uint32_t addr)
if ((regnum >= IOAPIC_REDTBL) &&
(regnum < (IOAPIC_REDTBL + (pincount * 2U)))) {
uint32_t addr_offset = regnum - IOAPIC_REDTBL;
uint32_t rte_offset = addr_offset / 2U;
uint32_t rte_offset = addr_offset >> 1U;
pin = rte_offset;
if ((addr_offset % 2U) != 0U) {
if ((addr_offset & 0x1U) != 0U) {
return vioapic->rtbl[pin].u.hi_32;
} else {
return vioapic->rtbl[pin].u.lo_32;

2
hypervisor/dm/vpci/pci_pt.c
View File

@@ -242,7 +242,7 @@ static void vdev_pt_cfgwrite_bar(struct pci_vdev *vdev, uint32_t offset,
bool do_map;
int error;
idx = (offset - PCIR_BAR(0U)) / 4U;
idx = (offset - PCIR_BAR(0U)) >> 2U;
mask = ~(vdev->bar[idx].size - 1U);
bar_update_normal = (new_bar_uos != (uint32_t)~0U);
new_bar = new_bar_uos & mask;