Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1706943
| From | Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v6 10/17] powerpc/vas: Define vas_rx_win_open() interface |
| Date | 2017-08-09 01:10 +0200 |
| Message-ID | <uclNo-6X2-29@gated-at.bofh.it> (permalink) |
| References | <uclNn-6X2-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Define the vas_rx_win_open() interface. This interface is intended to be
used by the Nest Accelerator (NX) driver(s) to setup receive windows for
one or more NX engines (which implement compression/encryption algorithms
in the hardware).
Follow-on patches will provide an interface to close the window and to open
a send window that kenrel subsystems can use to access the NX engines.
The interface to open a receive window is expected to be invoked for each
instance of VAS in the system.
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
---
Changelog[v6]:
- Add support for FTW windows
Changelog[v4]:
- Export the symbols
Changelog[v3]:
- Fault receive windows must enable interrupts and disable
notifications. NX Windows are opposite.
- Use macros rather than enum for threshold-control mode
- Ignore irq_ports for in-kernel windows. They are needed for
user space windows and will be added later
---
arch/powerpc/platforms/powernv/vas-window.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/powernv/vas-window.c b/arch/powerpc/platforms/powernv/vas-window.c
index ff64022..dfa7e67 100644
--- a/arch/powerpc/platforms/powernv/vas-window.c
+++ b/arch/powerpc/platforms/powernv/vas-window.c
@@ -717,7 +717,7 @@ void clear_vinst_win(struct vas_window *window)
mutex_lock(&vinst->mutex);
- if (!window->tx_win) {
+ if (!window->user_win && !window->tx_win) {
WARN_ON_ONCE(!vinst->rxwin[window->cop]);
vinst->rxwin[window->cop] = NULL;
}
--
2.7.4
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
[PATCH v6 00/17] powerpc/vas: Enable VAS Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2017-08-09 01:10 +0200 [PATCH v6 07/17] powerpc/vas: Define vas_win_paste_addr() Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2017-08-09 01:10 +0200 [PATCH v6 12/17] powerpc/vas: Define vas_tx_win_open() Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2017-08-09 01:10 +0200 [PATCH v6 01/17] powerpc/vas: Define macros, register fields and structures Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2017-08-09 01:10 +0200 [PATCH v6 11/17] powerpc/vas: Define vas_win_close() interface Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2017-08-09 01:10 +0200 [PATCH v6 13/17] powerpc/vas: Define copy/paste interfaces Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2017-08-09 01:10 +0200 [PATCH v6 14/17] powerpc: Add support for setting SPRN_TIDR Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2017-08-09 01:10 +0200 [PATCH v6 08/17] powerpc/vas: Define vas_win_id() Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2017-08-09 01:10 +0200 [PATCH v6 17/17] powerpc/vas: Document FTW API/usage Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2017-08-09 01:10 +0200 [PATCH v6 16/17] powerpc/vas: Implement a simple FTW driver Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2017-08-09 01:10 +0200 [PATCH v6 10/17] powerpc/vas: Define vas_rx_win_open() interface Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2017-08-09 01:10 +0200 [PATCH v6 03/17] powerpc/vas: Define vas_init() and vas_exit() Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2017-08-09 01:10 +0200 [PATCH v6 09/17] powerpc/vas: Define vas_rx_win_open() interface Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2017-08-09 01:20 +0200 [PATCH v6 05/17] powerpc/vas: Define helpers to init window context Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2017-08-09 01:20 +0200 [PATCH v6 06/17] powerpc/vas: Define helpers to alloc/free windows Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2017-08-09 01:20 +0200 [PATCH v6 04/17] powerpc/vas: Define helpers to access MMIO regions Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2017-08-09 01:20 +0200 [PATCH v6 02/17] powerpc/vas: Move GET_FIELD/SET_FIELD to vas.h Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2017-08-09 01:20 +0200
csiph-web