[v6,0/6] Various SMP related fixes

Message

Atish Patra Feb. 22, 2019, 7:41 p.m. UTC

The existing upstream kernel doesn't boot for non-smp configuration.
This patch series address various issues with non-smp configurations.

The patch series is based on 5.0-rc7 + Johan's below mentioned patch
series. Tested on both QEMU and HiFive Unleashed board using both
OpenSBI & BBL.

https://lore.kernel.org/lkml/[e-mail]/   

Changes from v5->v6
1. Dropped driver patches as they have been accepted via drivers tree.

Changes from v4->v5
1. Continue processing other harts even if isa string is incorrect for
   a single hart during HWCAP processing.

Changes from v3->v4
1. Fixed commit text length issues.
2. Updated hwcap patch to use common capabilities of all harts.
3. Rebased on Johan's patch series.

Changes from v2->v3

1. Fixed spurious white space.
2. Added lockdep for smpboot completion variable.
2. Added a sanity check for hwcap.

Changes from v1->v2

1. Move the cpuid to hartid map to smp.c from setup.c
2. Split 3rd patch into several small patches based on
   logical grouping.
3. Added a new patch that fixes an issue in hwcap query.
4. Changed the title of the patch series.

Atish Patra (6):
RISC-V: Do not wait indefinitely in __cpu_up
RISC-V: Move cpuid to hartid mapping to SMP.
RISC-V: Remove NR_CPUs check during hartid search from DT
RISC-V: Allow hartid-to-cpuid function to fail.
RISC-V: Compare cpuid with NR_CPUS before mapping.
RISC-V: Assign hwcap as per comman capabilities.

arch/riscv/include/asm/smp.h   | 18 +++++++++++++-----
arch/riscv/kernel/cpu.c        |  4 ----
arch/riscv/kernel/cpufeature.c | 41 ++++++++++++++++++++++-------------------
arch/riscv/kernel/setup.c      |  9 ---------
arch/riscv/kernel/smp.c        | 10 +++++++++-
arch/riscv/kernel/smpboot.c    | 20 +++++++++++++++++---
6 files changed, 61 insertions(+), 41 deletions(-)

--
2.7.4

Comments

Palmer Dabbelt March 4, 2019, 7:06 p.m. UTC | #1

On Fri, 22 Feb 2019 11:41:34 PST (-0800), [e-mail] wrote:
> The existing upstream kernel doesn't boot for non-smp configuration.
> This patch series address various issues with non-smp configurations.
>
> The patch series is based on 5.0-rc7 + Johan's below mentioned patch
> series. Tested on both QEMU and HiFive Unleashed board using both
> OpenSBI & BBL.
>
> https://lore.kernel.org/lkml/[e-mail]/
>
> Changes from v5->v6
> 1. Dropped driver patches as they have been accepted via drivers tree.
>
> Changes from v4->v5
> 1. Continue processing other harts even if isa string is incorrect for
>    a single hart during HWCAP processing.
>
> Changes from v3->v4
> 1. Fixed commit text length issues.
> 2. Updated hwcap patch to use common capabilities of all harts.
> 3. Rebased on Johan's patch series.
>
> Changes from v2->v3
>
> 1. Fixed spurious white space.
> 2. Added lockdep for smpboot completion variable.
> 2. Added a sanity check for hwcap.
>
> Changes from v1->v2
>
> 1. Move the cpuid to hartid map to smp.c from setup.c
> 2. Split 3rd patch into several small patches based on
>    logical grouping.
> 3. Added a new patch that fixes an issue in hwcap query.
> 4. Changed the title of the patch series.
>
> Atish Patra (6):
> RISC-V: Do not wait indefinitely in __cpu_up
> RISC-V: Move cpuid to hartid mapping to SMP.
> RISC-V: Remove NR_CPUs check during hartid search from DT
> RISC-V: Allow hartid-to-cpuid function to fail.
> RISC-V: Compare cpuid with NR_CPUS before mapping.
> RISC-V: Assign hwcap as per comman capabilities.
>
> arch/riscv/include/asm/smp.h   | 18 +++++++++++++-----
> arch/riscv/kernel/cpu.c        |  4 ----
> arch/riscv/kernel/cpufeature.c | 41 ++++++++++++++++++++++-------------------
> arch/riscv/kernel/setup.c      |  9 ---------
> arch/riscv/kernel/smp.c        | 10 +++++++++-
> arch/riscv/kernel/smpboot.c    | 20 +++++++++++++++++---
> 6 files changed, 61 insertions(+), 41 deletions(-)

I've taken this v6 into for-next, thanks!