/*
 * VRFB Rotation Engine
 *
 * Copyright (C) 2009 Nokia Corporation
 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#ifndef __OMAP_VRFB_H__
#define __OMAP_VRFB_H__

#define OMAP_VRFB_LINE_LEN 2048

struct vrfb {
	u8 context;
	void __iomem *vaddr[4];
	unsigned long paddr[4];
	u16 xres;
	u16 yres;
	u16 xoffset;
	u16 yoffset;
	u8 bytespp;
	bool yuv_mode;
};

#ifdef CONFIG_OMAP2_VRFB
extern bool omap_vrfb_supported(void);
extern int omap_vrfb_request_ctx(struct vrfb *vrfb);
extern void omap_vrfb_release_ctx(struct vrfb *vrfb);
extern void omap_vrfb_adjust_size(u16 *width, u16 *height,
		u8 bytespp);
extern u32 omap_vrfb_min_phys_size(u16 width, u16 height, u8 bytespp);
extern u16 omap_vrfb_max_height(u32 phys_size, u16 width, u8 bytespp);
extern void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr,
		u16 width, u16 height,
		unsigned bytespp, bool yuv_mode);
extern int omap_vrfb_map_angle(struct vrfb *vrfb, u16 height, u8 rot);
extern void omap_vrfb_restore_context(void);

#else
static inline bool omap_vrfb_supported(void) { return false; }
static inline int omap_vrfb_request_ctx(struct vrfb *vrfb) { return 0; }
static inline void omap_vrfb_release_ctx(struct vrfb *vrfb) {}
static inline void omap_vrfb_adjust_size(u16 *width, u16 *height,
		u8 bytespp) {}
static inline u32 omap_vrfb_min_phys_size(u16 width, u16 height, u8 bytespp)
		{ return 0; }
static inline u16 omap_vrfb_max_height(u32 phys_size, u16 width, u8 bytespp)
		{ return 0; }
static inline void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr,
		u16 width, u16 height, unsigned bytespp, bool yuv_mode) {}
static inline int omap_vrfb_map_angle(struct vrfb *vrfb, u16 height, u8 rot)
		{ return 0; }
static inline void omap_vrfb_restore_context(void) {}
#endif
#endif /* __VRFB_H */
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?id=edee4f1e92458299505ff007733f676b00c516a1'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/include?id=edee4f1e92458299505ff007733f676b00c516a1'>include</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/net?id=edee4f1e92458299505ff007733f676b00c516a1'>net</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/net/ip_tunnels.h?id=edee4f1e92458299505ff007733f676b00c516a1'>ip_tunnels.h</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/include/net/ip_tunnels.h?id=edee4f1e92458299505ff007733f676b00c516a1&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
<tr><td><span title='2017-02-03 15:21:21 -0500'>2017-02-03</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/include/net/ip_tunnels.h?id=f35581d64e55fc65753a62957b3b98127d560d07'>ip_tunnels: new IP_TUNNEL_INFO_BRIDGE flag for ip_tunnel_info mode</a></td><td>Roopa Prabhu</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+1</span></td></tr>
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<tr><th>author</th><td>Dexuan Cui &lt;decui@microsoft.com&gt;</td><td class='right'>2017-01-28 11:46:02 -0700</td></tr>
<tr><th>committer</th><td>Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;</td><td class='right'>2017-01-31 10:59:48 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/codecs/sgtl5000.h?id=433e19cf33d34bb6751c874a9c00980552fe508c'>433e19cf33d34bb6751c874a9c00980552fe508c</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/soc/codecs/sgtl5000.h?id=433e19cf33d34bb6751c874a9c00980552fe508c'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=433e19cf33d34bb6751c874a9c00980552fe508c'>ce6547ef2987fbb289fa28f03536328a42781651</a> /<a href='/cgit.cgi/linux/net-next.git/tree/sound/soc/codecs/sgtl5000.h?id=433e19cf33d34bb6751c874a9c00980552fe508c'>sound/soc/codecs/sgtl5000.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/codecs/sgtl5000.h?id=191e885a2e130e639bb0c8ee350d7047294f2ce6'>191e885a2e130e639bb0c8ee350d7047294f2ce6</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/soc/codecs/sgtl5000.h?id=433e19cf33d34bb6751c874a9c00980552fe508c&amp;id2=191e885a2e130e639bb0c8ee350d7047294f2ce6'>diff</a>)</td></tr></table>
<div class='commit-subject'>Drivers: hv: vmbus: finally fix hv_need_to_signal_on_read()</div><div class='commit-msg'>Commit a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in
hv_need_to_signal_on_read()")
added the proper mb(), but removed the test "prev_write_sz &lt; pending_sz"
when making the signal decision.

As a result, the guest can signal the host unnecessarily,
and then the host can throttle the guest because the host
thinks the guest is buggy or malicious; finally the user
running stress test can perceive intermittent freeze of
the guest.

This patch brings back the test, and properly handles the
in-place consumption APIs used by NetVSC (see get_next_pkt_raw(),
put_pkt_raw() and commit_rd_index()).

Fixes: a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in
hv_need_to_signal_on_read()")

Signed-off-by: Dexuan Cui &lt;decui@microsoft.com&gt;
Reported-by: Rolf Neugebauer &lt;rolf.neugebauer@docker.com&gt;
Tested-by: Rolf Neugebauer &lt;rolf.neugebauer@docker.com&gt;
Cc: "K. Y. Srinivasan" &lt;kys@microsoft.com&gt;
Cc: Haiyang Zhang &lt;haiyangz@microsoft.com&gt;
Cc: Stephen Hemminger &lt;sthemmin@microsoft.com&gt;
Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: K. Y. Srinivasan &lt;kys@microsoft.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=433e19cf33d34bb6751c874a9c00980552fe508c'>Diffstat</a> (limited to 'sound/soc/codecs/sgtl5000.h')</div><table summary='diffstat' class='diffstat'>