diff options
Diffstat (limited to 'kernel/gsp_emulation.c')
| -rw-r--r-- | kernel/gsp_emulation.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/gsp_emulation.c b/kernel/gsp_emulation.c index bca8a52..7b3b261 100644 --- a/kernel/gsp_emulation.c +++ b/kernel/gsp_emulation.c @@ -178,6 +178,17 @@ static void gsp_emu_poll_boot(struct gsp_emu_context *ctx) u32 gsp_cpuctl = gsp_emu_shadow_read32(ctx, GSP_EMU_REG_GSP_CPUCTL); u32 sec2_cpuctl = gsp_emu_shadow_read32(ctx, GSP_EMU_REG_SEC2_CPUCTL); u32 engine = gsp_emu_shadow_read32(ctx, GSP_EMU_REG_GSP_ENGINE); + u32 mmu_inv = gsp_emu_shadow_read32(ctx, GSP_EMU_REG_MMU_INVALIDATE); + + /* TLB invalidate auto-complete: the driver sets TRIGGER then spins + * polling for it to clear (kgmmuCheckPendingInvalidates). Report + * instant completion or the driver wedges the open/init path. */ + if (mmu_inv & GSP_EMU_MMU_INVALIDATE_TRIGGER) { + gsp_emu_shadow_write32(ctx, GSP_EMU_REG_MMU_INVALIDATE, + mmu_inv & ~GSP_EMU_MMU_INVALIDATE_TRIGGER); + pr_info_ratelimited("GSP-BOOT: MMU_INVALIDATE trigger auto-cleared (val=0x%x)\n", + mmu_inv); + } /* GSP ENGINE reset asserted -> falcon rebooted, restart stage tracking */ if ((engine & 0x1) && ctx->boot_stage != GSP_BOOT_STAGE_IDLE) { |