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,
ajd@linux.ibm.com
Subject: [PATCH v8 14/14] powerpc/vas: Free send window in VAS instance after credits returned
Date: Wed, 18 Mar 2020 23:20:15 -0700 [thread overview]
Message-ID: <1584598815.9256.15267.camel@hbabu-laptop> (raw)
In-Reply-To: <1584598120.9256.15237.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 d5754a8..a1d3fb1 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:[~2020-03-19 6:38 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-19 6:08 [PATCH v8 00/14] powerpc/vas: Page fault handling for user space NX requests Haren Myneni
2020-03-19 6:12 ` [PATCH v8 01/14] powerpc/xive: Define xive_native_alloc_irq_on_chip() Haren Myneni
2020-03-23 0:20 ` Nicholas Piggin
2020-03-23 8:32 ` Cédric Le Goater
2020-03-24 13:48 ` Cédric Le Goater
2020-03-19 6:13 ` [PATCH v8 02/14] powerpc/xive: Define xive_native_alloc_get_irq_info() Haren Myneni
2020-03-23 8:52 ` Cédric Le Goater
2020-03-24 13:51 ` Cédric Le Goater
2020-03-19 6:13 ` [PATCH v8 03/14] powerpc/vas: Define nx_fault_stamp in coprocessor_request_block Haren Myneni
2020-03-23 0:30 ` Nicholas Piggin
2020-03-23 0:57 ` Haren Myneni
2020-03-23 1:30 ` Nicholas Piggin
2020-03-23 11:32 ` Michael Ellerman
2020-03-23 18:13 ` Haren Myneni
2020-03-25 10:44 ` Michael Ellerman
2020-03-19 6:14 ` [PATCH v8 04/14] powerpc/vas: Alloc and setup IRQ and trigger port address Haren Myneni
2020-03-23 1:06 ` Nicholas Piggin
2020-03-23 9:06 ` Cédric Le Goater
2020-03-23 9:27 ` Cédric Le Goater
2020-03-23 19:02 ` Haren Myneni
2020-03-24 12:20 ` Cédric Le Goater
2020-03-24 2:26 ` Oliver O'Halloran
2020-03-24 13:27 ` Cédric Le Goater
2020-03-24 14:48 ` Cédric Le Goater
2020-03-24 21:06 ` Haren Myneni
2020-03-19 6:15 ` [PATCH v8 05/14] powerpc/vas: Setup fault window per VAS instance Haren Myneni
2020-03-19 6:15 ` [PATCH v8 06/14] powerpc/vas: Setup thread IRQ handler " Haren Myneni
2020-03-23 2:23 ` Nicholas Piggin
2020-03-25 2:58 ` Haren Myneni
2020-03-19 6:16 ` [PATCH v8 07/14] powerpc/vas: Register NX with fault window ID and IRQ port value Haren Myneni
2020-03-19 6:16 ` [PATCH v8 08/14] powerpc/vas: Take reference to PID and mm for user space windows Haren Myneni
2020-03-23 2:34 ` Nicholas Piggin
2020-03-19 6:17 ` [PATCH v8 09/14] powerpc/vas: Update CSB and notify process for fault CRBs Haren Myneni
2020-03-23 2:37 ` Nicholas Piggin
2020-03-19 6:18 ` [PATCH v8 10/14] powerpc/vas: Print CRB and FIFO values Haren Myneni
2020-03-19 6:18 ` [PATCH v8 11/14] powerpc/vas: Do not use default credits for receive window Haren Myneni
2020-03-23 2:40 ` Nicholas Piggin
2020-03-25 3:04 ` Haren Myneni
2020-03-19 6:19 ` [PATCH v8 12/14] powerpc/vas: Return credits after handling fault Haren Myneni
2020-03-23 2:44 ` Nicholas Piggin
2020-03-25 3:35 ` Haren Myneni
2020-03-19 6:19 ` [PATCH v8 13/14] powerpc/vas: Display process stuck message Haren Myneni
2020-03-19 6:20 ` Haren Myneni [this message]
2020-03-23 8:59 ` [PATCH v8 00/14] powerpc/vas: Page fault handling for user space NX requests Cédric Le Goater
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