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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-06 17:11:57 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-06 17:11:57 +0200 |
| commit | 18a1a7a1d862ae0794a0179473d08a414dd49234 (patch) | |
| tree | 013ffe8b7fbbe9169801d0be1a780ee9bf53c08e /arch/tile/kernel/intvec_64.S | |
| parent | Merge tag 'dm-3.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/... (diff) | |
| parent | arch/tile: remove unused variable 'devcap' (diff) | |
| download | linux-18a1a7a1d862ae0794a0179473d08a414dd49234.tar.xz linux-18a1a7a1d862ae0794a0179473d08a414dd49234.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull arch/tile updates from Chris Metcalf:
"These fix a few stray build issues seen in linux-next, and also add
the minimal required support for perf to tilegx"
* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
arch/tile: remove unused variable 'devcap'
tile: Fix vDSO compilation issue with allyesconfig
perf tools: Allow building for tile
tile/perf: Support perf_events on tilegx and tilepro
tile: Enable NMIs on return from handle_nmi() without errors
tile: Add support for handling PMC hardware
tile: don't use __get_cpu_var() with structure-typed arguments
tile: avoid overflow in ns2cycles
Diffstat (limited to 'arch/tile/kernel/intvec_64.S')
| -rw-r--r-- | arch/tile/kernel/intvec_64.S | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/arch/tile/kernel/intvec_64.S b/arch/tile/kernel/intvec_64.S index b8fc497f2437..5b67efcecabd 100644 --- a/arch/tile/kernel/intvec_64.S +++ b/arch/tile/kernel/intvec_64.S @@ -509,10 +509,10 @@ intvec_\vecname: .ifc \c_routine, do_trap mfspr r2, GPV_REASON .else - .ifc \c_routine, op_handle_perf_interrupt + .ifc \c_routine, handle_perf_interrupt mfspr r2, PERF_COUNT_STS .else - .ifc \c_routine, op_handle_aux_perf_interrupt + .ifc \c_routine, handle_perf_interrupt mfspr r2, AUX_PERF_COUNT_STS .endif .endif @@ -971,6 +971,15 @@ STD_ENTRY(interrupt_return) beqzt r30, .Lrestore_regs 3: +#if INT_PERF_COUNT + 1 != INT_AUX_PERF_COUNT +# error Bad interrupt assumption +#endif + { + movei r0, 3 /* two adjacent bits for the PERF_COUNT mask */ + beqz r31, .Lrestore_regs + } + shli r0, r0, INT_PERF_COUNT + mtspr SPR_INTERRUPT_MASK_RESET_K, r0 /* * We now commit to returning from this interrupt, since we will be @@ -1187,7 +1196,7 @@ handle_nmi: FEEDBACK_REENTER(handle_nmi) { movei r30, 1 - move r31, r0 + cmpeq r31, r0, zero } j interrupt_return STD_ENDPROC(handle_nmi) @@ -1491,8 +1500,9 @@ STD_ENTRY(fill_ra_stack) .global intrpt_start intrpt_start: -#define op_handle_perf_interrupt bad_intr -#define op_handle_aux_perf_interrupt bad_intr +#ifndef CONFIG_USE_PMC +#define handle_perf_interrupt bad_intr +#endif #ifndef CONFIG_HARDWALL #define do_hardwall_trap bad_intr @@ -1540,9 +1550,9 @@ intrpt_start: #endif int_hand INT_IPI_0, IPI_0, bad_intr int_hand INT_PERF_COUNT, PERF_COUNT, \ - op_handle_perf_interrupt, handle_nmi + handle_perf_interrupt, handle_nmi int_hand INT_AUX_PERF_COUNT, AUX_PERF_COUNT, \ - op_handle_perf_interrupt, handle_nmi + handle_perf_interrupt, handle_nmi int_hand INT_INTCTRL_3, INTCTRL_3, bad_intr #if CONFIG_KERNEL_PL == 2 dc_dispatch INT_INTCTRL_2, INTCTRL_2 |