Excerpts from Fabiano Rosas's message of November 29, 2021 11:46 pm: > Nicholas Piggin <npig...@gmail.com> writes: > >> This adds Kconfig selection which allows 64s hash MMU support to be >> disabled. It can be disabled if radix support is enabled, the minimum >> supported CPU type is POWER9 (or higher), and KVM is not selected. >> >> Signed-off-by: Nicholas Piggin <npig...@gmail.com> >> --- >> arch/powerpc/Kconfig | 3 ++- >> arch/powerpc/include/asm/mmu.h | 16 +++++++++++++--- >> arch/powerpc/kernel/dt_cpu_ftrs.c | 14 ++++++++++---- >> arch/powerpc/kvm/Kconfig | 1 + >> arch/powerpc/mm/init_64.c | 13 +++++++++++-- >> arch/powerpc/platforms/Kconfig.cputype | 23 +++++++++++++++++++++-- >> arch/powerpc/platforms/cell/Kconfig | 1 + >> arch/powerpc/platforms/maple/Kconfig | 1 + >> arch/powerpc/platforms/microwatt/Kconfig | 2 +- >> arch/powerpc/platforms/pasemi/Kconfig | 1 + >> arch/powerpc/platforms/powermac/Kconfig | 1 + >> arch/powerpc/platforms/powernv/Kconfig | 2 +- > > powernv_defconfig brings CONFIG_CXL=m > > ../drivers/misc/cxl/main.c: In function ‘cxl_alloc_sst’: > > ../drivers/misc/cxl/main.c:127:45: error: ‘mmu_linear_psize’ undeclared > (first use in this function); did you mean ‘mmu_virtual_psize’? > > 127 | sstp0 |= (SLB_VSID_KERNEL | mmu_psize_defs[mmu_linear_psize].sllp) > << 50; > | ^~~~~~~~~~~~~~~~ > > | mmu_virtual_psize > > ../drivers/misc/cxl/main.c:127:45: note: each undeclared identifier is > reported only once for each function it appears in > > make[4]: *** [../scripts/Makefile.build:287: drivers/misc/cxl/main.o] Error 1
Gah. I'll have to just make that depend on hash MMU for now. I won't repost the full series yet it's should just be a one liner. Thanks, Nick
