static void mon_init(void)
{
set_l2_indirect_reg(L2PMRESR2, 0x8B0B0000);
set_l2_indirect_reg(L2PMnEVCNTCR(RD_MON), 0x0);
set_l2_indirect_reg(L2PMnEVCNTCR(WR_MON), 0x0);
set_l2_indirect_reg(L2PMnEVCNTR(RD_MON), 0xFFFFFFFF);
set_l2_indirect_reg(L2PMnEVCNTR(WR_MON), 0xFFFFFFFF);
set_l2_indirect_reg(L2PMnEVFILTER(RD_MON), 0xF003F);
set_l2_indirect_reg(L2PMnEVFILTER(WR_MON), 0xF003F);
set_l2_indirect_reg(L2PMnEVTYPER(RD_MON), 0xA);
set_l2_indirect_reg(L2PMnEVTYPER(WR_MON), 0xB);
}
static void mon_init(void)
{
/* Set up counters 0/1 to count write/read beats */
set_l2_indirect_reg(L2PMRESR2, 0x8B0B0000);
set_l2_indirect_reg(L2PMnEVCNTCR(0), 0x0);
set_l2_indirect_reg(L2PMnEVCNTCR(1), 0x0);
set_l2_indirect_reg(L2PMnEVCNTR(0), 0xFFFFFFFF);
set_l2_indirect_reg(L2PMnEVCNTR(1), 0xFFFFFFFF);
set_l2_indirect_reg(L2PMnEVFILTER(0), 0xF003F);
set_l2_indirect_reg(L2PMnEVFILTER(1), 0xF003F);
set_l2_indirect_reg(L2PMnEVTYPER(0), 0xA);
set_l2_indirect_reg(L2PMnEVTYPER(1), 0xB);
}
static u32 mon_set_limit_mbyte(int n, unsigned int mbytes)
{
u32 regval, beats;
beats = mult_frac(mbytes, SZ_1M, bytes_per_beat);
regval = 0xFFFFFFFF - beats;
set_l2_indirect_reg(L2PMnEVCNTR(n), regval);
pr_debug("EV%d MB: %d, start val: %x\n", n, mbytes, regval);
return regval;
}
long mon_get_count(int n, u32 start_val)
{
u32 overflow, count;
count = get_l2_indirect_reg(L2PMnEVCNTR(n));
overflow = get_l2_indirect_reg(L2PMOVSR);
pr_debug("EV%d ov: %x, cnt: %x\n", n, overflow, count);
if (overflow & BIT(n))
return 0xFFFFFFFF - start_val + count;
else
return count - start_val;
}
/* Returns MBps of read/writes for the sampling window. */
static int mon_get_mbps(int n, u32 start_val, unsigned int us)
{
u32 overflow, count;
long long beats;
count = get_l2_indirect_reg(L2PMnEVCNTR(n));
overflow = get_l2_indirect_reg(L2PMOVSR);
if (overflow & BIT(n))
beats = 0xFFFFFFFF - start_val + count;
else
beats = count - start_val;
beats *= USEC_PER_SEC;
beats *= bytes_per_beat;
do_div(beats, us);
beats = DIV_ROUND_UP_ULL(beats, MBYTE);
pr_debug("EV%d ov: %x, cnt: %x\n", n, overflow, count);
return beats;
}
