From e09b41010ba33a20a87472ee821fa407a5b8da36 Mon Sep 17 00:00:00 2001 From: José Pekkarinen Date: Mon, 11 Apr 2016 10:41:07 +0300 Subject: These changes are the raw update to linux-4.4.6-rt14. Kernel sources are taken from kernel.org, and rt patch from the rt wiki download page. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen --- kernel/include/linux/ata.h | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) (limited to 'kernel/include/linux/ata.h') diff --git a/kernel/include/linux/ata.h b/kernel/include/linux/ata.h index 5dfbcd888..c1a2f345c 100644 --- a/kernel/include/linux/ata.h +++ b/kernel/include/linux/ata.h @@ -487,8 +487,8 @@ enum ata_tf_protocols { }; enum ata_ioctls { - ATA_IOC_GET_IO32 = 0x309, - ATA_IOC_SET_IO32 = 0x324, + ATA_IOC_GET_IO32 = 0x309, /* HDIO_GET_32BIT */ + ATA_IOC_SET_IO32 = 0x324, /* HDIO_SET_32BIT */ }; /* core structures */ @@ -701,9 +701,19 @@ static inline bool ata_id_wcache_enabled(const u16 *id) static inline bool ata_id_has_read_log_dma_ext(const u16 *id) { + /* Word 86 must have bit 15 set */ if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15))) return false; - return id[ATA_ID_COMMAND_SET_3] & (1 << 3); + + /* READ LOG DMA EXT support can be signaled either from word 119 + * or from word 120. The format is the same for both words: Bit + * 15 must be cleared, bit 14 set and bit 3 set. + */ + if ((id[ATA_ID_COMMAND_SET_3] & 0xC008) == 0x4008 || + (id[ATA_ID_COMMAND_SET_4] & 0xC008) == 0x4008) + return true; + + return false; } /** -- cgit 1.2.3-korg