Thierry Reding
8918465163
memory: Add NVIDIA Tegra memory controller support ...
The memory controller on NVIDIA Tegra exposes various knobs that can be
used to tune the behaviour of the clients attached to it.
Currently this driver sets up the latency allowance registers to the HW
defaults. Eventually an API should be exported by this driver (via a
custom API or a generic subsystem) to allow clients to register latency
requirements.
This driver also registers an IOMMU (SMMU) that's implemented by the
memory controller. It is supported on Tegra30, Tegra114 and Tegra124
currently. Tegra20 has a GART instead.
The Tegra SMMU operates on memory clients and SWGROUPs. A memory client
is a unidirectional, special-purpose DMA master. A SWGROUP represents a
set of memory clients that form a logical functional unit corresponding
to a single device. Typically a device has two clients: one client for
read transactions and one client for write transactions, but there are
also devices that have only read clients, but many of them (such as the
display controllers).
Because there is no 1:1 relationship between memory clients and devices
the driver keeps a table of memory clients and the SWGROUPs that they
belong to per SoC. Note that this is an exception and due to the fact
that the SMMU is tightly integrated with the rest of the Tegra SoC. The
use of these tables is discouraged in drivers for generic IOMMU devices
such as the ARM SMMU because the same IOMMU could be used in any number
of SoCs and keeping such tables for each SoC would not scale.
Acked-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-12-04 16:11:47 +01:00
Merge branches 'acpi-scan' and 'acpi-ec'
2014-10-31 22:24:44 +01:00
ARM: tegra: Move AHB Kconfig to drivers/amba
2014-11-26 09:43:25 +01:00
Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
2014-10-18 18:11:04 -07:00
atm: simplify lanai.c by using module_pci_driver
2014-10-17 11:55:32 -04:00
ACPI and power management fixes for 3.18-rc3
2014-10-31 19:08:25 -07:00
bcma: add another PCI ID of device with BCM43228
2014-10-23 14:02:06 -04:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
2014-10-31 15:00:48 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-10-13 11:28:42 +02:00
Return short read or 0 at end of a raw device, not EIO
2014-10-31 06:33:26 -04:00
clk: tegra: Implement memory-controller clock
2014-11-26 09:43:23 +01:00
ARM/ARM64: arch-timer: fix arch_timer_probed logic
2014-10-26 20:50:00 +01:00
cpufreq: cpufreq-dt: Restore default cpumask_setall(policy->cpus)
2014-10-27 23:27:35 +01:00
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2014-10-24 12:48:47 -07:00
crypto: LLVMLinux: Remove VLAIS from crypto/.../qat_algs.c
2014-10-14 10:51:23 +02:00
Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
2014-10-18 18:11:04 -07:00
e7xxx_edac: Report CE events properly
2014-10-22 22:59:00 +02:00
Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-10-23 14:45:09 -07:00
drm/exynos: correct connector->dpms field before resuming
2014-11-03 01:51:28 +09:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
2014-10-29 11:52:35 -07:00
hwmon: (menf21bmc) Include linux/err.h
2014-10-19 18:41:18 -07:00
Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2014-10-19 12:50:44 -07:00
Merge branch 'for-3.18/drivers' of git://git.kernel.dk/linux-block
2014-10-18 12:12:45 -07:00
First round of IIO fixes for the 3.18 cycle.
2014-10-25 10:09:39 +08:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2014-10-31 15:04:58 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2014-10-31 19:51:11 -07:00
memory: Add NVIDIA Tegra memory controller support
2014-12-04 16:11:47 +01:00
Merge branch 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
2014-10-15 07:48:18 +02:00
isdn/gigaset: fix usb_gigaset write_cmd result race
2014-10-14 15:05:35 -04:00
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
2014-10-21 08:18:38 -07:00
Merge branch 'mailbox-for-linus' of git://git.linaro.org/landing-teams/working/fujitsu/integration
2014-10-21 11:21:19 -07:00
. fix DM's long-standing excessive use of memory by leveraging the new
2014-10-18 12:25:30 -07:00
[media] s5p-jpeg: Avoid -Wuninitialized warning in s5p_jpeg_parse_hdr
2014-10-24 09:36:59 -02:00
memory: Add NVIDIA Tegra memory controller support
2014-12-04 16:11:47 +01:00
memstick: r592: fix build warnings for !PM_SLEEP
2014-10-14 02:18:22 +02:00
Changes to existing drivers:
2014-10-15 06:58:16 +02:00
cxl: Fix PSL error due to duplicate segment table entries
2014-10-28 19:52:52 +11:00
Merge branch 'for-3.18/drivers' of git://git.kernel.dk/linux-block
2014-10-18 12:12:45 -07:00
Three main MTD fixes for 3.18:
2014-11-02 14:45:52 -08:00
Merge tag 'master-2014-10-30' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
2014-10-31 16:18:35 -04:00
ntb: Adding split BAR support for Haswell platforms
2014-10-17 07:08:51 -04:00
drivers: of: add return value to of_reserved_mem_device_init()
2014-10-29 16:33:14 -07:00
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-10-13 16:23:15 +02:00
PCI updates for v3.18:
2014-10-31 18:48:29 -07:00
thinkpad_acpi: replace strnicmp with strncasecmp
2014-10-14 02:18:25 +02:00
PNP: replace strnicmp with strncasecmp
2014-10-14 02:18:25 +02:00
power: reset: at91-reset: fix power down register
2014-10-22 10:08:22 +02:00
pwm: Changes for v3.18-rc1
2014-10-21 08:17:43 -07:00
Merge remote-tracking branch 'regulator/fix/rk808' into regulator-linus
2014-10-27 11:26:24 +00:00
drivers/rtc/rtc-bq32k.c: fix register value
2014-10-29 16:33:14 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2014-10-21 07:47:54 -07:00
libcxgbi : support ipv6 address host_param
2014-10-28 09:57:00 +01:00
Merge remote-tracking branches 'spi/fix/dw', 'spi/fix/orion', 'spi/fix/pl022', 'spi/fix/rockchip' and 'spi/fix/spidev' into spi-linus
2014-10-27 11:26:54 +00:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-11-02 10:28:43 -08:00
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2014-10-21 13:06:38 -07:00
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
2014-10-24 11:21:43 -07:00
Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
2014-10-18 18:11:04 -07:00
USB-serial fixes for v3.18-rc3
2014-10-29 09:24:42 -07:00
IOMMU Updates for Linux v3.18
2014-10-15 07:23:49 +02:00
Merge branch '3.18/omapdss-fixes' into 3.18/fbdev-fixes
2014-10-30 14:53:49 +02:00
One cc: stable commit, the rest are a series of minor cleanups which have
2014-10-18 10:25:09 -07:00
watchdog: meson: remove magic value for reboot
2014-10-20 21:09:17 +02:00
xen/pci: Allocate memory for physdev_pci_device_add's optarr
2014-10-23 16:24:02 +01:00
ARM: tegra: Move AHB Kconfig to drivers/amba
2014-11-26 09:43:25 +01:00
8918465163