linux/arch/powerpc
Haren Myneni 461862ef94 powerpc/vas: Return credits after handling fault
NX uses credit mechanism to control the number of requests issued on
a specific window at any point of time. Only send windows and fault
window are used credits. When the request is issued on a given window,
a credit is taken. This credit will be returned after that request is
processed. If credits are not available, returns RMA_Busy for send
window and RMA_Reject for fault window.

NX expects OS to return credit for send window after processing fault
CRB. Also credit has to be returned for fault window after handling
the fault.

Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Signed-off-by: Haren Myneni <haren@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1587017059.2275.1064.camel@hbabu-laptop
2020-04-20 16:53:00 +10:00
..
boot powerpc updates for 5.7 2020-04-05 11:12:59 -07:00
configs powerpc updates for 5.7 #2 2020-04-09 11:01:42 -07:00
crypto crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
include powerpc/vas: Define nx_fault_stamp in coprocessor_request_block 2020-04-20 16:53:00 +10:00
kernel powerpc updates for 5.7 #2 2020-04-09 11:01:42 -07:00
kexec powerpc updates for 5.7 2020-04-05 11:12:59 -07:00
kvm virtio: fixes, vdpa 2020-04-08 10:51:53 -07:00
lib powerpc/64/sstep: Ifdef the deprecated fast endian switch syscall 2020-04-01 13:42:13 +11:00
math-emu
mm mm/memory_hotplug: add pgprot_t to mhp_params 2020-04-10 15:36:21 -07:00
net treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
oprofile powerpc updates for 5.6 2020-02-04 13:06:46 +00:00
perf powerpc updates for 5.7 #2 2020-04-09 11:01:42 -07:00
platforms powerpc/vas: Return credits after handling fault 2020-04-20 16:53:00 +10:00
purgatory .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
sysdev powerpc/xive: Define xive_native_alloc_irq_on_chip() 2020-04-20 16:52:59 +10:00
tools powerpc: Do not consider weak unresolved symbol relocations as bad 2020-01-31 20:17:22 +11:00
xmon powerpc: Make setjmp/longjmp signature standard 2020-04-01 14:30:51 +11:00
Kbuild powerpc/kexec: Move kexec files into a dedicated subdir. 2019-11-21 15:41:34 +11:00
Kconfig powerpc updates for 5.7 #2 2020-04-09 11:01:42 -07:00
Kconfig.debug powerpc/ptdump: Only enable PPC_CHECK_WX with STRICT_KERNEL_RWX 2020-01-23 21:31:13 +11:00
Makefile powerpc: Suppress .eh_frame generation 2020-04-01 14:30:51 +11:00
Makefile.postlink powerpc: Do not consider weak unresolved symbol relocations as bad 2020-01-31 20:17:22 +11:00