From: "Luis R. Rodriguez" <[email protected]> If and when this gets enabled the driver should address using ioremap_wc() on the same area, that could require a bit of work as it would mean a split with two ioremap'd areas. Annotate this.
Cc: Andy Lutomirski <[email protected]> Cc: Suresh Siddha <[email protected]> Cc: Venkatesh Pallipadi <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Juergen Gross <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: Nagalakshmi Nandigama <[email protected]> Cc: Praveen Krishnamoorthy <[email protected]> Cc: Sreekanth Reddy <[email protected]> Cc: Abhijit Mahajan <[email protected]> Cc: Juergen Gross <[email protected]> Cc: Dave Airlie <[email protected]> Cc: Antonino Daplas <[email protected]> Cc: Tomi Valkeinen <[email protected]> Cc: Jean-Christophe Plagniol-Villard <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Signed-off-by: Luis R. Rodriguez <[email protected]> --- drivers/message/fusion/mptbase.c | 19 ++++--------------- drivers/message/fusion/mptbase.h | 2 +- 2 files changed, 5 insertions(+), 16 deletions(-) diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index 187f836..c7b1a55 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -59,10 +59,6 @@ #include <linux/delay.h> #include <linux/interrupt.h> /* needed for in_interrupt() proto */ #include <linux/dma-mapping.h> -#include <asm/io.h> -#ifdef CONFIG_MTRR -#include <asm/mtrr.h> -#endif #include <linux/kthread.h> #include <scsi/scsi_host.h> @@ -2820,11 +2816,8 @@ mpt_adapter_dispose(MPT_ADAPTER *ioc) pci_disable_device(ioc->pcidev); pci_release_selected_regions(ioc->pcidev, ioc->bars); -#if defined(CONFIG_MTRR) && 0 - if (ioc->mtrr_reg > 0) { - mtrr_del(ioc->mtrr_reg, 0, 0); - dprintk(ioc, printk(MYIOC_s_INFO_FMT "MTRR region de-registered\n", ioc->name)); - } +#if 0 + __arch_phys_wc_del(ioc->wc_cookie); #endif /* Zap the adapter lookup ptr! */ @@ -4512,17 +4505,13 @@ PrimeIocFifos(MPT_ADAPTER *ioc) ioc->req_frames_low_dma = (u32) (alloc_dma & 0xFFFFFFFF); -#if defined(CONFIG_MTRR) && 0 +#if 0 /* * Enable Write Combining MTRR for IOC's memory region. * (at least as much as we can; "size and base must be * multiples of 4 kiB" */ - ioc->mtrr_reg = mtrr_add(ioc->req_frames_dma, - sz, - MTRR_TYPE_WRCOMB, 1); - dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MTRR region registered (base:size=%08x:%x)\n", - ioc->name, ioc->req_frames_dma, sz)); + ioc->wc_cookie = arch_phys_wc_add(ioc->req_frames_dma, sz); #endif for (i = 0; i < ioc->req_depth; i++) { diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h index 8f14090..f0bff11 100644 --- a/drivers/message/fusion/mptbase.h +++ b/drivers/message/fusion/mptbase.h @@ -671,7 +671,7 @@ typedef struct _MPT_ADAPTER u8 *HostPageBuffer; /* SAS - host page buffer support */ u32 HostPageBuffer_sz; dma_addr_t HostPageBuffer_dma; - int mtrr_reg; + int wc_cookie; struct pci_dev *pcidev; /* struct pci_dev pointer */ int bars; /* bitmask of BAR's that must be configured */ int msi_enable; -- 2.3.2.209.gd67f9d5.dirty -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
