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lib/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 01:41:51 -08:00
parent 66f305c46c
commit dc50705d01
2 changed files with 36 additions and 0 deletions
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4
lib/mqnic/mqnic.h
View File

@ -227,6 +227,10 @@ uint32_t mqnic_get_core_clk_nom_freq_hz(struct mqnic *dev);
uint32_t mqnic_get_ref_clk_nom_freq_hz(struct mqnic *dev);
uint32_t mqnic_get_core_clk_freq_hz(struct mqnic *dev);
uint32_t mqnic_get_clk_freq_hz(struct mqnic *dev, int ch);
uint64_t mqnic_core_clk_cycles_to_ns(struct mqnic *dev, uint64_t cycles);
uint64_t mqnic_core_clk_ns_to_cycles(struct mqnic *dev, uint64_t ns);
uint64_t mqnic_ref_clk_cycles_to_ns(struct mqnic *dev, uint64_t cycles);
uint64_t mqnic_ref_clk_ns_to_cycles(struct mqnic *dev, uint64_t ns);
// mqnic_stats.c
void mqnic_stats_init(struct mqnic *dev);

32
lib/mqnic/mqnic_clk_info.c
View File

@ -80,3 +80,35 @@ uint32_t mqnic_get_clk_freq_hz(struct mqnic *dev, int ch)
return mqnic_reg_read32(dev->clk_info_rb->regs, MQNIC_RB_CLK_INFO_FREQ_BASE + ch*4);
}
uint64_t mqnic_core_clk_cycles_to_ns(struct mqnic *dev, uint64_t cycles)
{
if (!dev->clk_info_rb || !dev->core_clk_nom_per_ns_denom)
return 0;
return (cycles * (uint64_t)dev->core_clk_nom_per_ns_num) / (uint64_t)dev->core_clk_nom_per_ns_denom;
}
uint64_t mqnic_core_clk_ns_to_cycles(struct mqnic *dev, uint64_t ns)
{
if (!dev->clk_info_rb || !dev->core_clk_nom_per_ns_num)
return 0;
return (ns * (uint64_t)dev->core_clk_nom_per_ns_denom) / (uint64_t)dev->core_clk_nom_per_ns_num;
}
uint64_t mqnic_ref_clk_cycles_to_ns(struct mqnic *dev, uint64_t cycles)
{
if (!dev->clk_info_rb || !dev->ref_clk_nom_per_ns_denom)
return 0;
return (cycles * (uint64_t)dev->ref_clk_nom_per_ns_num) / (uint64_t)dev->ref_clk_nom_per_ns_denom;
}
uint64_t mqnic_ref_clk_ns_to_cycles(struct mqnic *dev, uint64_t ns)
{
if (!dev->clk_info_rb || !dev->ref_clk_nom_per_ns_num)
return 0;
return (ns * (uint64_t)dev->ref_clk_nom_per_ns_denom) / (uint64_t)dev->ref_clk_nom_per_ns_num;
}