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Merge tag 'nds32-for-linus-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux

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Pull nds32 updates from Greentime Hu:

 - Perf support

 - Power management support

 - FPU support

 - Hardware prefetcher support

 - Build error fixed

 - Performance enhancement

* tag 'nds32-for-linus-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux:
  nds32: support hardware prefetcher
  nds32: Fix the items of hwcap_str ordering issue.
  math-emu/soft-fp.h: (_FP_ROUND_ZERO) cast 0 to void to fix warning
  math-emu/op-2.h: Use statement expressions to prevent negative constant shift
  nds32: support denormalized result through FP emulator
  nds32: Support FP emulation
  nds32: nds32 FPU port
  nds32: Remove duplicated include from pm.c
  nds32: Power management for nds32
  nds32: Add document for NDS32 PMU.
  nds32: Add perf call-graph support.
  nds32: Perf porting
  nds32: Fix bug in bitfield.h
  nds32: Fix gcc 8.0 compiler option incompatible.
  nds32: Fill all TLB entries with kernel image mapping
  nds32: Remove the redundant assignment
This commit is contained in:
Linus Torvalds
2018-12-29 09:37:03 -08:00
parent 903b77c631 e2f3f8b4a4
commit 889bb74302
65 changed files with 4440 additions and 88 deletions
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31
drivers/irqchip/irq-ativic32.c
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@@ -10,6 +10,8 @@
#include <linux/irqchip.h>
#include <nds32_intrinsic.h>
unsigned long wake_mask;
static void ativic32_ack_irq(struct irq_data *data)
{
__nds32__mtsr_dsb(BIT(data->hwirq), NDS32_SR_INT_PEND2);
@@ -27,11 +29,40 @@ static void ativic32_unmask_irq(struct irq_data *data)
__nds32__mtsr_dsb(int_mask2 | (BIT(data->hwirq)), NDS32_SR_INT_MASK2);
}
static int nointc_set_wake(struct irq_data *data, unsigned int on)
{
unsigned long int_mask = __nds32__mfsr(NDS32_SR_INT_MASK);
static unsigned long irq_orig_bit;
u32 bit = 1 << data->hwirq;
if (on) {
if (int_mask & bit)
__assign_bit(data->hwirq, &irq_orig_bit, true);
else
__assign_bit(data->hwirq, &irq_orig_bit, false);
__assign_bit(data->hwirq, &int_mask, true);
__assign_bit(data->hwirq, &wake_mask, true);
} else {
if (!(irq_orig_bit & bit))
__assign_bit(data->hwirq, &int_mask, false);
__assign_bit(data->hwirq, &wake_mask, false);
__assign_bit(data->hwirq, &irq_orig_bit, false);
}
__nds32__mtsr_dsb(int_mask, NDS32_SR_INT_MASK);
return 0;
}
static struct irq_chip ativic32_chip = {
.name = "ativic32",
.irq_ack = ativic32_ack_irq,
.irq_mask = ativic32_mask_irq,
.irq_unmask = ativic32_unmask_irq,
.irq_set_wake = nointc_set_wake,
};
static unsigned int __initdata nivic_map[6] = { 6, 2, 10, 16, 24, 32 };