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Add display port support in DPU by creating hooks
for DP encoder enumeration and encoder mode
initialization.
changes in v2:
- rebase on [2] (Sean Paul)
- remove unwanted error checks and
switch cases (Jordan Crouse)
[1] https://lwn.net/Articles/768265/
[2] https://lkml.org/lkml/2018/11/17/87
changes in V3:
-- Moved this change as part of the DP driver changes.
-- Addressed compilation issues on the latest code base.
Changes in v6:
-- Fix checkpatch.pl warning
Changes in v7: Remove depends-on tag from commit message.
Changes in v8: None
Changes in v9: None
Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Chandan Uddaraju <chandanu@codeaurora.org>
Signed-off-by: Vara Reddy <varar@codeaurora.org>
Signed-off-by: Tanmay Shah <tanmay@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
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Add the needed DP PLL specific files to support
display port interface on msm targets.
The DP driver calls the DP PLL driver registration.
The DP driver sets the link and pixel clock sources.
Changes in v2:
-- Update copyright markings on all relevant files.
-- Use DRM_DEBUG_DP for debug msgs.
Changes in v4:
-- Update the DP link clock provider names
Changes in V5:
-- Addressed comments from Stephen Boyd, Rob clark.
Changes in V6:
-- Remove PLL as separate driver and include PLL as DP module
-- Remove redundant clock parsing from PLL module and make DP as
clock provider
-- Map USB3 DPCOM and PHY IO using hardcoded register address and
move mapping form parser to PLL module
-- Access DP PHY modules from same base address using offsets instead of
deriving base address of individual module from device tree.
-- Remove dp_pll_10nm_util.c and include its functionality in
dp_pll_10nm.c
-- Introduce new data structures private to PLL module
Changes in v7:
-- Remove DRM_MSM_DP_PLL config from Makefile and Kconfig
-- Remove set_parent from determin_rate API
-- Remove phy_pll_vco_div_clk from parent list
-- Remove flag CLK_DIVIDER_ONE_BASED
-- Remove redundant cell-index property parsing
Changes in v8:
-- Unregister hardware clocks during driver cleanup
Changes in v9:
-- Remove redundant Kconfig option DRM_MSM_DP_10NM_PLL
Changes in v10:
-- Limit 10nm PLL function scope
Signed-off-by: Chandan Uddaraju <chandanu@codeaurora.org>
Signed-off-by: Vara Reddy <varar@codeaurora.org>
Signed-off-by: Tanmay Shah <tanmay@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
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Add the needed displayPort files to enable DP driver
on msm target.
"dp_display" module is the main module that calls into
other sub-modules. "dp_drm" file represents the interface
between DRM framework and DP driver.
Changes in v12:
-- Add support of pm ops in display port driver
-- Clear bpp depth bits before writing to MISC register
-- Fix edid read
Previous Change log:
https://lkml.kernel.org/lkml/20200818051137.21478-3-tanmay@codeaurora.org/
Signed-off-by: Chandan Uddaraju <chandanu@codeaurora.org>
Signed-off-by: Vara Reddy <varar@codeaurora.org>
Signed-off-by: Tanmay Shah <tanmay@codeaurora.org>
Co-developed-by: Abhinav Kumar <abhinavk@codeaurora.org>
Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
Co-developed-by: Kuogee Hsieh <khsieh@codeaurora.org>
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
Co-developed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Guenter Roeck <groeck@chromium.org>
Co-developed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
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The constant N value (0x8000) is used by i915 DP
driver. Define this value in dp helper header file
to use in multiple Display Port drivers. Change
i915 driver accordingly.
Change in v6: Change commit message
Signed-off-by: Chandan Uddaraju <chandanu@codeaurora.org>
Signed-off-by: Vara Reddy <varar@codeaurora.org>
Signed-off-by: Tanmay Shah <tanmay@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>
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As newer GPU families are added it makes less sense to maintain a
"generic" version functions for older families. Move adreno_submit()
and get_rptr() into the target specific code for a2xx, a3xx and a4xx.
Add a parameter to adreno_flush to pass the target specific WPTR register
instead of relying on the generic register.
All of this gets rid of the last of the REG_ADRENO offsets so remove all
all the register definitions and infrastructure.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
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Support the WHERE_AM_I opcode for the A618, A630 and A640 GPUs if the
microcode supports it. The WHERE_AM_I opcode allows the RPTR shadow
to be updated in priviliged memory which protects the shadow from being
read or written from user submissions.
A650 already supports extended APRIV have built in hardware support for
to access privilged memory from the CP and can go back to using the
hardware RPTR shadow feature.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
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Newer microcode versions have support for the CP_WHERE_AM_I opcode which
allows the RPTR shadow memory to be marked as privileged to protect it
from corruption. Move the RPTR shadow into its own buffer and protect it
it if the current microcode version supports the new feature.
We can also re-enable preemption for those targets that support
CP_WHERE_AM_I. Start out by preemptively assuming that we can enable
preemption and disable it in a5xx_hw_init if the microcode version comes
back as too old.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
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In $debugfs/gem we already show any vma(s) associated with an object.
Also show process names if the vma's address space is a per-process
address space.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Add support for using per-instance pagetables if all the dependencies are
available.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Akhil P Oommen <akhilpo@codeaurora.org>
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Add support for allocating private address space instances. Targets that
support per-context pagetables should implement their own function to
allocate private address spaces.
The default will return a pointer to the global address space.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Add support to create a io-pgtable for use by targets that support
per-instance pagetables. In order to support per-instance pagetables the
GPU SMMU device needs to have the qcom,adreno-smmu compatible string and
split pagetables enabled.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Use the aperture settings from the IOMMU domain to set up the virtual
address range for the GPU. This allows us to transparently deal with
IOMMU side features (like split pagetables).
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Now that we can get the ctx from the submitqueue, the extra arg is
redundant.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
[split out of previous patch to reduce churny noise]
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Each submitqueue is attached to a context. Add a pointer to the
context to the submitqueue at create time and refcount it so
that it stays around through the life of the queue.
Co-developed-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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This will be populated by adreno-smmu, to provide a way for coordinating
enabling/disabling TTBR0 translation.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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In a later patch, the drvdata will not directly be 'struct msm_gpu *',
so add a helper to reduce the churn.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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