diff options
| author | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2023-06-27 14:17:19 +0100 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2023-06-27 14:17:19 +0100 |
| commit | 53ae158f6ddc14df5c44d62c06e33fdb66de1196 (patch) | |
| tree | d0d0485f5f614e0070bab6ff1b53d56aec7c2d8e /drivers/net/ethernet/google | |
| parent | ac9a78681b921877518763ba0e89202254349d1b (diff) | |
| parent | 47ba5f39eab3c2a9a1ba878159a6050f2bbfc0e2 (diff) | |
Merge tag 'arm-vfp-refactor-for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux into devel-stabledevel-stable
Refactor VFP support code and reimplement in C
The VFP related changes to permit kernel mode NEON in softirq context
resulted in some issues regarding en/disabling of sofirqs from asm code,
and this made it clear that it would be better to handle more of it from
C code.
Given that we already have infrastructure that associates undefined
instruction exceptions with handler code based on value/mask pairs, we
can easily move the dispatch of VFP and NEON instructions to C code once
we reimplement the actual VFP support routine (which reasons about how
to deal with the exception and whether any emulation is needed) in C
code first.
With those out of the way, we can drop the partial decoding logic in asm
that reasons about which ISA is being used by user space, as the
remaining cases are all 32-bit ARM only. This leaves a FPE specific
routine with some iWMMXT logic that is easily duplicated in C as well,
allowing us to move the FPE asm code into the FPE asm source file, and
out of the shared entry code.
Diffstat (limited to 'drivers/net/ethernet/google')
| -rw-r--r-- | drivers/net/ethernet/google/gve/gve_main.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/drivers/net/ethernet/google/gve/gve_main.c b/drivers/net/ethernet/google/gve/gve_main.c index 57ce74315eba..caa00c72aeeb 100644 --- a/drivers/net/ethernet/google/gve/gve_main.c +++ b/drivers/net/ethernet/google/gve/gve_main.c @@ -294,19 +294,6 @@ static int gve_napi_poll_dqo(struct napi_struct *napi, int budget) bool reschedule = false; int work_done = 0; - /* Clear PCI MSI-X Pending Bit Array (PBA) - * - * This bit is set if an interrupt event occurs while the vector is - * masked. If this bit is set and we reenable the interrupt, it will - * fire again. Since we're just about to poll the queue state, we don't - * need it to fire again. - * - * Under high softirq load, it's possible that the interrupt condition - * is triggered twice before we got the chance to process it. - */ - gve_write_irq_doorbell_dqo(priv, block, - GVE_ITR_NO_UPDATE_DQO | GVE_ITR_CLEAR_PBA_BIT_DQO); - if (block->tx) reschedule |= gve_tx_poll_dqo(block, /*do_clean=*/true); |