Eric Lee / smarc-fsl-linux-kernel

05 Jun, 2019

1 commit

  • d94d71cb4   treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 ... Browse Code »

    Based on 1 normalized pattern(s):

    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 51 franklin street fifth floor boston ma 02110
    1301 usa

    extracted by the scancode license scanner the SPDX license identifier

    GPL-2.0-only

    has been chosen to replace the boilerplate/reference in 67 file(s).

    Signed-off-by: Thomas Gleixner
    Reviewed-by: Allison Randal
    Reviewed-by: Richard Fontana
    Reviewed-by: Alexios Zavras
    Cc: linux-spdx@vger.kernel.org
    Link: https://lkml.kernel.org/r/20190529141333.953658117@linutronix.de
    Signed-off-by: Greg Kroah-Hartman

    Thomas Gleixner
     

31 Mar, 2015

1 commit

14 Aug, 2013

1 commit

  • 695093e38   iommu/fsl: Freescale PAMU driver and iommu implementation. ... Browse Code »

    Following is a brief description of the PAMU hardware:
    PAMU determines what action to take and whether to authorize the action on
    the basis of the memory address, a Logical IO Device Number (LIODN), and
    PAACT table (logically) indexed by LIODN and address. Hardware devices which
    need to access memory must provide an LIODN in addition to the memory address.

    Peripheral Access Authorization and Control Tables (PAACTs) are the primary
    data structures used by PAMU. A PAACT is a table of peripheral access
    authorization and control entries (PAACE).Each PAACE defines the range of
    I/O bus address space that is accessible by the LIOD and the associated access
    capabilities.

    There are two types of PAACTs: primary PAACT (PPAACT) and secondary PAACT
    (SPAACT).A given physical I/O device may be able to act as one or more
    independent logical I/O devices (LIODs). Each such logical I/O device is
    assigned an identifier called logical I/O device number (LIODN). A LIODN is
    allocated a contiguous portion of the I/O bus address space called the DSA window
    for performing DSA operations. The DSA window may optionally be divided into
    multiple sub-windows, each of which may be used to map to a region in system
    storage space. The first sub-window is referred to as the primary sub-window
    and the remaining are called secondary sub-windows.

    This patch provides the PAMU driver (fsl_pamu.c) and the corresponding IOMMU
    API implementation (fsl_pamu_domain.c). The PAMU hardware driver (fsl_pamu.c)
    has been derived from the work done by Ashish Kalra and Timur Tabi.

    [For iommu group support]
    Acked-by: Alex Williamson

    Signed-off-by: Timur Tabi
    Signed-off-by: Varun Sethi
    Signed-off-by: Joerg Roedel

    Varun Sethi