linux-toradex.git/drivers/memory/mtk-smi.c, branch v5.11-rc2

memory: mtk-smi: Add mt8192 support

2020-11-05T19:04:07+00:00

Add mt8192 SMI support.

Signed-off-by: Yong Wu 
Link: https://lore.kernel.org/r/20201103054200.21386-4-yong.wu@mediatek.com
Signed-off-by: Krzysztof Kozlowski

memory: mtk-smi: add support for MT8167

2020-09-09T19:34:17+00:00

Add support for the SMI IP on MT8167

Signed-off-by: Fabien Parent 
Link: https://lore.kernel.org/r/20200906180938.1117526-2-fparent@baylibre.com
Signed-off-by: Krzysztof Kozlowski

Merge tag 'iommu-updates-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

2020-08-11T21:13:24+00:00

Pull iommu updates from Joerg Roedel:

 - Remove of the dev->archdata.iommu (or similar) pointers from most
   architectures. Only Sparc is left, but this is private to Sparc as
   their drivers don't use the IOMMU-API.

 - ARM-SMMU updates from Will Deacon:

     - Support for SMMU-500 implementation in Marvell Armada-AP806 SoC

     - Support for SMMU-500 implementation in NVIDIA Tegra194 SoC

     - DT compatible string updates

     - Remove unused IOMMU_SYS_CACHE_ONLY flag

     - Move ARM-SMMU drivers into their own subdirectory

 - Intel VT-d updates from Lu Baolu:

     - Misc tweaks and fixes for vSVA

     - Report/response page request events

     - Cleanups

 - Move the Kconfig and Makefile bits for the AMD and Intel drivers into
   their respective subdirectory.

 - MT6779 IOMMU Support

 - Support for new chipsets in the Renesas IOMMU driver

 - Other misc cleanups and fixes (e.g. to improve compile test coverage)

* tag 'iommu-updates-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (77 commits)
  iommu/amd: Move Kconfig and Makefile bits down into amd directory
  iommu/vt-d: Move Kconfig and Makefile bits down into intel directory
  iommu/arm-smmu: Move Arm SMMU drivers into their own subdirectory
  iommu/vt-d: Skip TE disabling on quirky gfx dedicated iommu
  iommu: Add gfp parameter to io_pgtable_ops->map()
  iommu: Mark __iommu_map_sg() as static
  iommu/vt-d: Rename intel-pasid.h to pasid.h
  iommu/vt-d: Add page response ops support
  iommu/vt-d: Report page request faults for guest SVA
  iommu/vt-d: Add a helper to get svm and sdev for pasid
  iommu/vt-d: Refactor device_to_iommu() helper
  iommu/vt-d: Disable multiple GPASID-dev bind
  iommu/vt-d: Warn on out-of-range invalidation address
  iommu/vt-d: Fix devTLB flush for vSVA
  iommu/vt-d: Handle non-page aligned address
  iommu/vt-d: Fix PASID devTLB invalidation
  iommu/vt-d: Remove global page support in devTLB flush
  iommu/vt-d: Enforce PASID devTLB field mask
  iommu: Make some functions static
  iommu/amd: Remove double zero check
  ...

memory: mtk-smi: Add argument to function pointer definition

2020-07-24T14:18:32+00:00

Fix checkpatch warning:

    WARNING: function definition argument 'struct device *' should also have an identifier name

Signed-off-by: Krzysztof Kozlowski

memory: mtk-smi: Add basic support for MT6779

2020-07-13T13:28:56+00:00

Add smi-larb and smi-common nodes and config_port for MT6779.

changelog since v2:
Split basic nodes and config_port support from initial golden setting patch

Signed-off-by: Ming-Fan Chen 
Reviewed-by: Matthias Brugger 
Link: https://lore.kernel.org/r/1578465691-30692-4-git-send-email-ming-fan.chen@mediatek.com
Signed-off-by: Joerg Roedel

memory: mtk-smi: Add PM suspend and resume ops

2019-10-15T12:25:34+00:00

In the commit 4f0a1a1ae351 ("memory: mtk-smi: Invoke pm runtime_callback
to enable clocks"), we use pm_runtime callback to enable/disable the smi
larb clocks. It will cause the larb's clock may not be disabled when
suspend. That is because device_prepare will call pm_runtime_get_noresume
which will keep the larb's PM runtime status still is active when suspend,
then it won't enter our pm_runtime suspend callback to disable the
corresponding clocks.

This patch adds suspend pm_ops to force disable the clocks, Use "LATE" to
make sure it disable the larb's clocks after the multimedia devices.

Fixes: 4f0a1a1ae351 ("memory: mtk-smi: Invoke pm runtime_callback to enable clocks")
Signed-off-by: Anan Sun 
Signed-off-by: Yong Wu 
Signed-off-by: Joerg Roedel

iommu/mediatek: Clean up struct mtk_smi_iommu

2019-08-30T13:57:27+00:00

Remove the "struct mtk_smi_iommu" to simplify the code since it has only
one item in it right now.

Signed-off-by: Yong Wu 
Reviewed-by: Matthias Brugger 
Signed-off-by: Joerg Roedel

memory: mtk-smi: Get rid of need_larbid

2019-08-30T13:57:27+00:00

The "mediatek,larb-id" has already been parsed in MTK IOMMU driver.
It's no need to parse it again in SMI driver. Only clean some codes.
This patch is fit for all the current mt2701, mt2712, mt7623, mt8173
and mt8183.

After this patch, the "mediatek,larb-id" only be needed for mt2712
which have 2 M4Us. In the other SoCs, we can get the larb-id from M4U
in which the larbs in the "mediatek,larbs" always are ordered.

Correspondingly, the larb_nr in the "struct mtk_smi_iommu" could also
be deleted.

CC: Matthias Brugger 
Signed-off-by: Yong Wu 
Reviewed-by: Evan Green 
Reviewed-by: Matthias Brugger 
Signed-off-by: Joerg Roedel

memory: mtk-smi: Add bus_sel for mt8183

2019-08-30T13:57:27+00:00

There are 2 mmu cells in a M4U HW. we could adjust some larbs entering
mmu0 or mmu1 to balance the bandwidth via the smi-common register
SMI_BUS_SEL(0x220)(Each larb occupy 2 bits).

In mt8183, For better performance, we switch larb1/2/5/7 to enter
mmu1 while the others still keep enter mmu0.

In mt8173 and mt2712, we don't get the performance issue,
Keep its default value(0x0), that means all the larbs enter mmu0.

Note: smi gen1(mt2701/mt7623) don't have this bus_sel.

And, the base of smi-common is completely different with smi_ao_base
of gen1, thus I add new variable for that.

CC: Matthias Brugger 
Signed-off-by: Yong Wu 
Reviewed-by: Evan Green 
Reviewed-by: Matthias Brugger 
Signed-off-by: Joerg Roedel

memory: mtk-smi: Invoke pm runtime_callback to enable clocks

2019-08-30T13:57:27+00:00

This patch only move the clk_prepare_enable and config_port into the
runtime suspend/resume callback. It doesn't change the code content
and sequence.

This is a preparing patch for adjusting SMI_BUS_SEL for mt8183.
(SMI_BUS_SEL need to be restored after smi-common resume every time.)
Also it gives a chance to get rid of mtk_smi_larb_get/put which could
be a next topic.

CC: Matthias Brugger 
Signed-off-by: Yong Wu 
Reviewed-by: Evan Green 
Reviewed-by: Matthias Brugger 
Signed-off-by: Joerg Roedel