diff options
author | Scott Wood <scottwood@freescale.com> | 2013-11-01 21:17:16 (GMT) |
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committer | Scott Wood <scottwood@freescale.com> | 2013-11-03 22:47:10 (GMT) |
commit | 31110de40dca4d4aeff4f253b3def948b88fa590 (patch) | |
tree | 0d811783836d52f15e37b4244de54f44ed4f93ad /arch/powerpc/kernel/fpu.S | |
parent | ae60d5d27c429b13cf28a09ab8b9d30682433c5a (diff) | |
parent | 8bb495e3f02401ee6f76d1b1d77f3ac9f079e376 (diff) | |
download | linux-fsl-qoriq-31110de40dca4d4aeff4f253b3def948b88fa590.tar.xz |
Merge tag 'v3.10' into sdk-kernel-3.10
git rebase --continue
Linux 3.10
Conflicts:
Documentation/virtual/kvm/api.txt
arch/ia64/kvm/Makefile
arch/powerpc/Kconfig
arch/powerpc/Makefile
arch/powerpc/boot/dts/b4420qds.dts
arch/powerpc/boot/dts/b4860qds.dts
arch/powerpc/boot/dts/b4qds.dts
arch/powerpc/boot/dts/fsl/b4420si-post.dtsi
arch/powerpc/boot/dts/fsl/b4420si-pre.dtsi
arch/powerpc/boot/dts/fsl/b4860si-post.dtsi
arch/powerpc/boot/dts/fsl/b4860si-pre.dtsi
arch/powerpc/boot/dts/fsl/b4si-post.dtsi
arch/powerpc/boot/dts/fsl/p1010si-post.dtsi
arch/powerpc/boot/dts/fsl/p2041si-post.dtsi
arch/powerpc/boot/dts/fsl/p3041si-post.dtsi
arch/powerpc/boot/dts/fsl/p4080si-post.dtsi
arch/powerpc/boot/dts/fsl/p5020si-post.dtsi
arch/powerpc/boot/dts/fsl/p5040si-post.dtsi
arch/powerpc/boot/dts/fsl/qonverge-usb2-dr-0.dtsi
arch/powerpc/boot/dts/fsl/qoriq-sec5.0-0.dtsi
arch/powerpc/boot/dts/fsl/t4240si-post.dtsi
arch/powerpc/boot/dts/fsl/t4240si-pre.dtsi
arch/powerpc/boot/dts/p1025rdb_36b.dts
arch/powerpc/boot/dts/t4240qds.dts
arch/powerpc/configs/corenet64_smp_defconfig
arch/powerpc/configs/mpc85xx_defconfig
arch/powerpc/configs/mpc85xx_smp_defconfig
arch/powerpc/include/asm/cputable.h
arch/powerpc/include/asm/kvm_host.h
arch/powerpc/include/asm/kvm_ppc.h
arch/powerpc/include/asm/machdep.h
arch/powerpc/include/uapi/asm/kvm.h
arch/powerpc/kernel/cpu_setup_fsl_booke.S
arch/powerpc/kernel/cputable.c
arch/powerpc/kernel/idle.c
arch/powerpc/kernel/pci-common.c
arch/powerpc/kvm/Kconfig
arch/powerpc/kvm/book3s.c
arch/powerpc/kvm/booke.c
arch/powerpc/kvm/e500.c
arch/powerpc/kvm/e500_mmu.c
arch/powerpc/kvm/e500_mmu_host.c
arch/powerpc/kvm/e500mc.c
arch/powerpc/kvm/emulate.c
arch/powerpc/kvm/irq.h
arch/powerpc/kvm/mpic.c
arch/powerpc/kvm/powerpc.c
arch/powerpc/mm/tlb_nohash.c
arch/powerpc/platforms/85xx/Kconfig
arch/powerpc/platforms/85xx/b4_qds.c
arch/powerpc/platforms/85xx/t4240_qds.c
arch/powerpc/platforms/pseries/smp.c
arch/powerpc/sysdev/fsl_85xx_l2ctlr.c
arch/powerpc/sysdev/fsl_msi.c
arch/powerpc/sysdev/fsl_pci.c
arch/powerpc/sysdev/fsl_pci.h
arch/powerpc/sysdev/mpic.c
arch/x86/kvm/Makefile
arch/x86/kvm/x86.c
drivers/Kconfig
drivers/clk/Kconfig
drivers/cpufreq/Makefile
drivers/crypto/caam/caamalg.c
drivers/crypto/caam/intern.h
drivers/crypto/caam/jr.c
drivers/crypto/caam/regs.h
drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
drivers/iommu/Makefile
drivers/iommu/amd_iommu.c
drivers/iommu/exynos-iommu.c
drivers/iommu/intel-iommu.c
drivers/iommu/iommu.c
drivers/iommu/msm_iommu.c
drivers/iommu/omap-iommu.c
drivers/iommu/tegra-gart.c
drivers/iommu/tegra-smmu.c
drivers/misc/Makefile
drivers/mmc/card/block.c
drivers/mmc/card/queue.c
drivers/mmc/core/core.c
drivers/mtd/nand/fsl_ifc_nand.c
drivers/net/ethernet/3com/3c501.c
drivers/net/ethernet/8390/3c503.c
drivers/net/ethernet/dec/ewrk3.c
drivers/net/ethernet/freescale/fec.c
drivers/net/ethernet/freescale/gianfar.c
drivers/net/ethernet/freescale/gianfar.h
drivers/net/ethernet/i825xx/3c505.c
drivers/net/ethernet/i825xx/3c507.c
drivers/rtc/rtc-ds3232.c
drivers/s390/net/qeth_core_main.c
drivers/staging/Kconfig
drivers/staging/Makefile
drivers/staging/ccg/u_ether.c
drivers/usb/gadget/fsl_udc_core.c
drivers/usb/otg/fsl_otg.c
drivers/vfio/vfio.c
drivers/watchdog/Kconfig
include/linux/iommu.h
include/linux/kvm_host.h
include/linux/mmc/sdhci.h
include/linux/msi.h
include/linux/netdev_features.h
include/linux/pci.h
include/linux/skbuff.h
include/net/ip6_route.h
include/net/sch_generic.h
include/net/xfrm.h
include/uapi/linux/kvm.h
net/core/netpoll.c
virt/kvm/irqchip.c
virt/kvm/kvm_main.c
Diffstat (limited to 'arch/powerpc/kernel/fpu.S')
-rw-r--r-- | arch/powerpc/kernel/fpu.S | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/fpu.S b/arch/powerpc/kernel/fpu.S index e0ada05..caeaabf 100644 --- a/arch/powerpc/kernel/fpu.S +++ b/arch/powerpc/kernel/fpu.S @@ -35,6 +35,15 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX); \ 2: REST_32VSRS(n,c,base); \ 3: +#define __REST_32FPVSRS_TRANSACT(n,c,base) \ +BEGIN_FTR_SECTION \ + b 2f; \ +END_FTR_SECTION_IFSET(CPU_FTR_VSX); \ + REST_32FPRS_TRANSACT(n,base); \ + b 3f; \ +2: REST_32VSRS_TRANSACT(n,c,base); \ +3: + #define __SAVE_32FPVSRS(n,c,base) \ BEGIN_FTR_SECTION \ b 2f; \ @@ -45,11 +54,68 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX); \ 3: #else #define __REST_32FPVSRS(n,b,base) REST_32FPRS(n, base) +#define __REST_32FPVSRS_TRANSACT(n,b,base) REST_32FPRS(n, base) #define __SAVE_32FPVSRS(n,b,base) SAVE_32FPRS(n, base) #endif #define REST_32FPVSRS(n,c,base) __REST_32FPVSRS(n,__REG_##c,__REG_##base) +#define REST_32FPVSRS_TRANSACT(n,c,base) \ + __REST_32FPVSRS_TRANSACT(n,__REG_##c,__REG_##base) #define SAVE_32FPVSRS(n,c,base) __SAVE_32FPVSRS(n,__REG_##c,__REG_##base) +#ifdef CONFIG_PPC_TRANSACTIONAL_MEM +/* + * Wrapper to call load_up_fpu from C. + * void do_load_up_fpu(struct pt_regs *regs); + */ +_GLOBAL(do_load_up_fpu) + mflr r0 + std r0, 16(r1) + stdu r1, -112(r1) + + subi r6, r3, STACK_FRAME_OVERHEAD + /* load_up_fpu expects r12=MSR, r13=PACA, and returns + * with r12 = new MSR. + */ + ld r12,_MSR(r6) + GET_PACA(r13) + + bl load_up_fpu + std r12,_MSR(r6) + + ld r0, 112+16(r1) + addi r1, r1, 112 + mtlr r0 + blr + + +/* void do_load_up_transact_fpu(struct thread_struct *thread) + * + * This is similar to load_up_fpu but for the transactional version of the FP + * register set. It doesn't mess with the task MSR or valid flags. + * Furthermore, we don't do lazy FP with TM currently. + */ +_GLOBAL(do_load_up_transact_fpu) + mfmsr r6 + ori r5,r6,MSR_FP +#ifdef CONFIG_VSX +BEGIN_FTR_SECTION + oris r5,r5,MSR_VSX@h +END_FTR_SECTION_IFSET(CPU_FTR_VSX) +#endif + SYNC + MTMSRD(r5) + + lfd fr0,THREAD_TRANSACT_FPSCR(r3) + MTFSF_L(fr0) + REST_32FPVSRS_TRANSACT(0, R4, R3) + + /* FP/VSX off again */ + MTMSRD(r6) + SYNC + + blr +#endif /* CONFIG_PPC_TRANSACTIONAL_MEM */ + /* * This task wants to use the FPU now. * On UP, disable FP for the task which had the FPU previously, |