From: Haren Myneni <haren@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: mikey@neuling.org, herbert@gondor.apana.org.au,
npiggin@gmail.com, hch@infradead.org, oohall@gmail.com,
sukadev@linux.vnet.ibm.com
Subject: [PATCH V4 14/14] powerpc/vas: Free send window in VAS instance after credits returned
Date: Sun, 22 Dec 2019 03:22:08 -0800 [thread overview]
Message-ID: <1577013728.12797.91.camel@hbabu-laptop> (raw)
In-Reply-To: <1577012478.12797.71.camel@hbabu-laptop>
NX may be processing requests while trying to close window. Wait until
all credits are returned and then free send window from VAS instance.
Signed-off-by: Haren Myneni <haren@linux.ibm.com>
---
arch/powerpc/platforms/powernv/vas-window.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/powernv/vas-window.c b/arch/powerpc/platforms/powernv/vas-window.c
index d7d53e4..b612670 100644
--- a/arch/powerpc/platforms/powernv/vas-window.c
+++ b/arch/powerpc/platforms/powernv/vas-window.c
@@ -1317,14 +1317,14 @@ int vas_win_close(struct vas_window *window)
unmap_paste_region(window);
- clear_vinst_win(window);
-
poll_window_busy_state(window);
unpin_close_window(window);
poll_window_credits(window);
+ clear_vinst_win(window);
+
poll_window_castout(window);
/* if send window, drop reference to matching receive window */
--
1.8.3.1
prev parent reply other threads:[~2019-12-22 11:42 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-22 11:01 [PATCH V4 00/14] powerpc/vas: Page fault handling for user space NX requests Haren Myneni
2019-12-22 11:08 ` [PATCH V4 01/14] powerpc/xive: Define xive_native_alloc_irq_on_chip() Haren Myneni
2019-12-22 11:09 ` [PATCH V4 02/14] powerpc/xive: Define xive_native_alloc_get_irq_info() Haren Myneni
2019-12-22 11:09 ` [PATCH V4 03/14] powerpc/vas: Define nx_fault_stamp in coprocessor_request_block Haren Myneni
2019-12-22 11:10 ` [PATCH V4 04/14] powerpc/vas: Alloc and setup IRQ and trigger port address Haren Myneni
2019-12-22 11:12 ` [PATCH V4 05/14] powerpc/vas: Setup fault window per VAS instance Haren Myneni
2019-12-22 11:14 ` [PATCH V4 06/14] powerpc/vas: Setup thread IRQ handler " Haren Myneni
2019-12-22 11:14 ` [PATCH V4 07/14] powerpc/vas: Register NX with fault window ID and IRQ port value Haren Myneni
2019-12-22 11:15 ` [PATCH V4 08/14] powerpc/vas: Take reference to PID and mm for userspace windows Haren Myneni
2019-12-22 11:17 ` [PATCH V4 09/14] powerpc/vas: Update CSB and notify process for fault CRBs Haren Myneni
2019-12-22 11:18 ` [PATCH V4 10/14] powerpc/vas: Print CRB and FIFO values Haren Myneni
2019-12-22 11:18 ` [PATCH V4 11/14] powerpc/vas: Do not use default credits for receive window Haren Myneni
2019-12-22 11:20 ` [PATCH V4 12/14] powerpc/VAS: Return credits after handling fault Haren Myneni
2019-12-22 11:21 ` [PATCH V4 13/14] powerpc/vas: Display process stuck message Haren Myneni
2019-12-22 11:22 ` Haren Myneni [this message]
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