From: Haren Myneni <haren@linux.ibm.com>
To: mpe@ellerman.id.au
Cc: mikey@neuling.org, herbert@gondor.apana.org.au,
npiggin@gmail.com, hch@infradead.org, oohall@gmail.com,
sukadev@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org
Subject: [PATCH V6 14/14] powerpc/vas: Free send window in VAS instance after credits returned
Date: Wed, 04 Mar 2020 12:53:38 -0800 [thread overview]
Message-ID: <1583355218.18705.2167.camel@hbabu-laptop> (raw)
In-Reply-To: <1583353283.18705.2112.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 40c303a..c60accd 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
next prev parent reply other threads:[~2020-03-04 21:11 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-04 20:21 [PATCH V6 00/14] powerpc/vas: Page fault handling for user space NX requests Haren Myneni
2020-03-04 20:44 ` [PATCH V6 01/14] powerpc/xive: Define xive_native_alloc_irq_on_chip() Haren Myneni
2020-03-04 20:45 ` [PATCH V6 02/14] powerpc/xive: Define xive_native_alloc_get_irq_info() Haren Myneni
2020-03-04 20:45 ` [PATCH V6 03/14] powerpc/vas: Define nx_fault_stamp in coprocessor_request_block Haren Myneni
2020-03-04 20:46 ` [PATCH V6 04/14] powerpc/vas: Alloc and setup IRQ and trigger port address Haren Myneni
2020-03-04 20:46 ` [PATCH V6 05/14] powerpc/vas: Setup fault window per VAS instance Haren Myneni
2020-03-04 20:47 ` [PATCH V6 06/14] powerpc/vas: Setup thread IRQ handler " Haren Myneni
2020-03-04 20:48 ` [PATCH V6 07/14] powerpc/vas: Register NX with fault window ID and IRQ port value Haren Myneni
2020-03-04 20:48 ` [PATCH V6 08/14] powerpc/vas: Take reference to PID and mm for user space windows Haren Myneni
2020-03-04 20:49 ` [PATCH V6 09/14] powerpc/vas: Update CSB and notify process for fault CRBs Haren Myneni
2020-03-04 20:50 ` [PATCH V6 10/14] powerpc/vas: Print CRB and FIFO values Haren Myneni
2020-03-04 20:50 ` [PATCH V6 11/14] powerpc/vas: Do not use default credits for receive window Haren Myneni
2020-03-04 20:52 ` [PATCH V6 12/14] powerpc/vas: Return credits after handling fault Haren Myneni
2020-03-04 20:53 ` [PATCH V6 13/14] powerpc/vas: Display process stuck message Haren Myneni
2020-03-04 20:53 ` Haren Myneni [this message]
2020-03-05 0:04 ` [PATCH V6 00/14] powerpc/vas: Page fault handling for user space NX requests Andrew Donnellan
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