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| author | Thomas Gleixner <tglx@linutronix.de> | 2019-05-06 12:04:12 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2019-05-06 12:04:12 +0200 |
| commit | fb4e0592654adb31bc6f3a738d6499b816a655d6 (patch) | |
| tree | e6edaf18cf3a7f49e93fb51de5a47f4b9e786f53 /arch/powerpc/net/bpf_jit64.h | |
| parent | 471ba0e686cb13752bc1ff3216c54b69a2d250ea (diff) | |
| parent | 16e32c3cde7763ab875b9030b443ecbc8e352d8a (diff) | |
Merge tag 'irqchip-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core
Pull irqchip updates from Marc Zyngier
- The huge (and terrifying) TI INTR/INTA set of drivers
- Rewrite of the stm32mp1-exti driver as a platform driver
- Update the IOMMU MSI mapping API to be RT friendly
- A number of cleanups and other low impact fixes
Diffstat (limited to 'arch/powerpc/net/bpf_jit64.h')
| -rw-r--r-- | arch/powerpc/net/bpf_jit64.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/powerpc/net/bpf_jit64.h b/arch/powerpc/net/bpf_jit64.h index 3609be4692b3..47f441f351a6 100644 --- a/arch/powerpc/net/bpf_jit64.h +++ b/arch/powerpc/net/bpf_jit64.h @@ -68,6 +68,26 @@ static const int b2p[] = { /* PPC NVR range -- update this if we ever use NVRs below r27 */ #define BPF_PPC_NVR_MIN 27 +/* + * WARNING: These can use TMP_REG_2 if the offset is not at word boundary, + * so ensure that it isn't in use already. + */ +#define PPC_BPF_LL(r, base, i) do { \ + if ((i) % 4) { \ + PPC_LI(b2p[TMP_REG_2], (i)); \ + PPC_LDX(r, base, b2p[TMP_REG_2]); \ + } else \ + PPC_LD(r, base, i); \ + } while(0) +#define PPC_BPF_STL(r, base, i) do { \ + if ((i) % 4) { \ + PPC_LI(b2p[TMP_REG_2], (i)); \ + PPC_STDX(r, base, b2p[TMP_REG_2]); \ + } else \ + PPC_STD(r, base, i); \ + } while(0) +#define PPC_BPF_STLU(r, base, i) do { PPC_STDU(r, base, i); } while(0) + #define SEEN_FUNC 0x1000 /* might call external helpers */ #define SEEN_STACK 0x2000 /* uses BPF stack */ #define SEEN_TAILCALL 0x4000 /* uses tail calls */ |