From c23fee23ef2322f0305442de4f38dbcdee9f5f14 Mon Sep 17 00:00:00 2001 From: Maarten Lankhorst Date: Thu, 27 Jun 2013 13:48:16 +0200 Subject: reservation: cross-device reservation support, v4 This adds support for a generic reservations framework that can be hooked up to ttm and dma-buf and allows easy sharing of reservations across devices. The idea is that a dma-buf and ttm object both will get a pointer to a struct reservation_object, which has to be reserved before anything is done with the contents of the dma-buf. Changes since v1: - Fix locking issue in ticket_reserve, which could cause mutex_unlock to be called too many times. Changes since v2: - All fence related calls and members have been taken out for now, what's left is the bare minimum to be useful for ttm locking conversion. Changes since v3: - Removed helper functions too. The documentation has an example implementation for locking. With the move to ww_mutex there is no need to have much logic any more. Signed-off-by: Maarten Lankhorst Reviewed-by: Jerome Glisse Signed-off-by: Dave Airlie --- Documentation/DocBook/device-drivers.tmpl | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation') diff --git a/Documentation/DocBook/device-drivers.tmpl b/Documentation/DocBook/device-drivers.tmpl index c36892c072d..f0648a8b09b 100644 --- a/Documentation/DocBook/device-drivers.tmpl +++ b/Documentation/DocBook/device-drivers.tmpl @@ -126,6 +126,8 @@ X!Edrivers/base/interface.c Device Drivers DMA Management !Edrivers/base/dma-buf.c +!Edrivers/base/reservation.c +!Iinclude/linux/reservation.h !Edrivers/base/dma-coherent.c !Edrivers/base/dma-mapping.c -- cgit v1.2.3