| commit | 1dbae5d755c36ab7932f9282ff146cf1fe698ade | |
| author | Thomas Hellstrom <thellstrom@vmware.com> | |
| Wed, 2 Jul 2014 13:47:04 +0000 (2 15:47 +0200) | ||
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| Wed, 9 Jul 2014 17:51:20 +0000 (9 10:51 -0700) | ||
| tree | 7d44bd6fc79d4ea36c807b1ccd26314123822b28 | treesnapshot (tar.gz zip) |
| parent | 822780ca251deec5c3d61da9568f9f64a79233e4 | commitdiff |
drm/vmwgfx: Fix incorrect write to read-only register v2:
commit 4e578080ed3262ed2c3985868539bc66218d25c0 upstream.
Commit "drm/vmwgfx: correct fb_fix_screeninfo.line_length", while fixing a
vmwgfx fbdev bug, also writes the pitch to a supposedly read-only register:
SVGA_REG_BYTES_PER_LINE, while it should be (and also in fact is) written to
SVGA_REG_PITCHLOCK.
This patch is Cc'd stable because of the unknown effects writing to this
register might have, particularly on older device versions.
v2: Updated log message.
Cc: Christopher Friedt <chrisfriedt@gmail.com>
Tested-by: Christopher Friedt <chrisfriedt@gmail.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 4e578080ed3262ed2c3985868539bc66218d25c0 upstream.
Commit "drm/vmwgfx: correct fb_fix_screeninfo.line_length", while fixing a
vmwgfx fbdev bug, also writes the pitch to a supposedly read-only register:
SVGA_REG_BYTES_PER_LINE, while it should be (and also in fact is) written to
SVGA_REG_PITCHLOCK.
This patch is Cc'd stable because of the unknown effects writing to this
register might have, particularly on older device versions.
v2: Updated log message.
Cc: Christopher Friedt <chrisfriedt@gmail.com>
Tested-by: Christopher Friedt <chrisfriedt@gmail.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| drivers/gpu/drm/vmwgfx/vmwgfx_fb.c | diffblobblamehistory |