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modules/mqnic: Added helper methods for converting cycle counts to/from time

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Signed-off-by: Alex Forencich <alex@alexforencich.com>
This commit is contained in:
Alex Forencich 2022-11-24 01:41:31 -08:00
parent 48ae81e3fb
commit 66f305c46c
2 changed files with 40 additions and 0 deletions
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4
modules/mqnic/mqnic.h
View File

@ -586,6 +586,10 @@ u32 mqnic_get_core_clk_nom_freq_hz(struct mqnic_dev *mdev);
u32 mqnic_get_ref_clk_nom_freq_hz(struct mqnic_dev *mdev);
u32 mqnic_get_core_clk_freq_hz(struct mqnic_dev *mdev);
u32 mqnic_get_clk_freq_hz(struct mqnic_dev *mdev, int ch);
u64 mqnic_core_clk_cycles_to_ns(struct mqnic_dev *mdev, u64 cycles);
u64 mqnic_core_clk_ns_to_cycles(struct mqnic_dev *mdev, u64 ns);
u64 mqnic_ref_clk_cycles_to_ns(struct mqnic_dev *mdev, u64 cycles);
u64 mqnic_ref_clk_ns_to_cycles(struct mqnic_dev *mdev, u64 ns);
// mqnic_stats.c
void mqnic_stats_init(struct mqnic_dev *mdev);

36
modules/mqnic/mqnic_clk_info.c
View File

@ -88,3 +88,39 @@ u32 mqnic_get_clk_freq_hz(struct mqnic_dev *mdev, int ch)
return ioread32(mdev->clk_info_rb->regs + MQNIC_RB_CLK_INFO_FREQ_BASE + ch*4);
}
EXPORT_SYMBOL(mqnic_get_clk_freq_hz);
u64 mqnic_core_clk_cycles_to_ns(struct mqnic_dev *mdev, u64 cycles)
{
if (!mdev->clk_info_rb || !mdev->core_clk_nom_per_ns_denom)
return 0;
return (cycles * (u64)mdev->core_clk_nom_per_ns_num) / (u64)mdev->core_clk_nom_per_ns_denom;
}
EXPORT_SYMBOL(mqnic_core_clk_cycles_to_ns);
u64 mqnic_core_clk_ns_to_cycles(struct mqnic_dev *mdev, u64 ns)
{
if (!mdev->clk_info_rb || !mdev->core_clk_nom_per_ns_num)
return 0;
return (ns * (u64)mdev->core_clk_nom_per_ns_denom) / (u64)mdev->core_clk_nom_per_ns_num;
}
EXPORT_SYMBOL(mqnic_core_clk_ns_to_cycles);
u64 mqnic_ref_clk_cycles_to_ns(struct mqnic_dev *mdev, u64 cycles)
{
if (!mdev->clk_info_rb || !mdev->ref_clk_nom_per_ns_denom)
return 0;
return (cycles * (u64)mdev->ref_clk_nom_per_ns_num) / (u64)mdev->ref_clk_nom_per_ns_denom;
}
EXPORT_SYMBOL(mqnic_ref_clk_cycles_to_ns);
u64 mqnic_ref_clk_ns_to_cycles(struct mqnic_dev *mdev, u64 ns)
{
if (!mdev->clk_info_rb || !mdev->ref_clk_nom_per_ns_num)
return 0;
return (ns * (u64)mdev->ref_clk_nom_per_ns_denom) / (u64)mdev->ref_clk_nom_per_ns_num;
}
EXPORT_SYMBOL(mqnic_ref_clk_ns_to_cycles);