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authorLen Brown <len.brown@intel.com>2016-11-18 09:23:17 +0300
committerThomas Gleixner <tglx@linutronix.de>2016-11-18 14:07:56 +0300
commitb65ce83f2a607ad478c5492812f5f218e8d57a6b (patch)
treee935c3efcdda516d4a400aeedbcf5cd1f209ef2f /drivers/dma
parenta25f0944ba9b1d8a6813fd6f1a86f1bd59ac25a6 (diff)
downloadlinux-b65ce83f2a607ad478c5492812f5f218e8d57a6b.tar.xz
i7300_idle: Remove this driver
In preparation for removing the idle_notifier, remove its only user, the i7300_idle driver. i7300_idle was deployed in 2008 to reduce idle memory power on systems using the i7300 chipset. The driver worked by throttling the fully-buffered DIMMs during idle periods using the IOAT DMA engine. The driver ran only on the i7300 chip-set, and no other hardware has used this mechanism. The driver no longer has a maintainer. Removing this driver will increase idle power on i7300 systems when they run the new kernel without the driver. Signed-off-by: Len Brown <len.brown@intel.com> Acked-by: Ingo Molnar <mingo@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: http://lkml.kernel.org/r/ad6a044e57cc75f44cc8621abe846e58f7882243.1479449716.git.len.brown@intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/ioat/registers.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/dma/ioat/registers.h b/drivers/dma/ioat/registers.h
index 48fa4cf9f64a..2f3bbc88ff2a 100644
--- a/drivers/dma/ioat/registers.h
+++ b/drivers/dma/ioat/registers.h
@@ -106,8 +106,6 @@
#define IOAT_DMA_COMP_V1 0x0001 /* Compatibility with DMA version 1 */
#define IOAT_DMA_COMP_V2 0x0002 /* Compatibility with DMA version 2 */
-/* IOAT1 define left for i7300_idle driver to not fail compiling */
-#define IOAT1_CHANSTS_OFFSET 0x04
#define IOAT_CHANSTS_OFFSET 0x08 /* 64-bit Channel Status Register */
#define IOAT_CHANSTS_COMPLETED_DESCRIPTOR_ADDR (~0x3fULL)
#define IOAT_CHANSTS_SOFT_ERR 0x10ULL