== Series Details ==
Series: enhanced i915 vgpu with PV feature support
URL : https://patchwork.freedesktop.org/series/81400/
State : success
== Summary ==
CI Bug Log - changes from CI_DRM_8968 -> Patchwork_18446
Summary
---
== Series Details ==
Series: enhanced i915 vgpu with PV feature support
URL : https://patchwork.freedesktop.org/series/81400/
State : warning
== Summary ==
$ make htmldocs 2>&1 > /dev/null | grep i915
./drivers/gpu/drm/i915/i915_vgpu.c:846: warning: Excess function parameter
'dev_priv'
== Series Details ==
Series: enhanced i915 vgpu with PV feature support
URL : https://patchwork.freedesktop.org/series/81400/
State : warning
== Summary ==
$ dim sparse --fast origin/drm-tip
Sparse version: v0.6.2
Fast mode used, each commit won't be checked separately.
== Series Details ==
Series: enhanced i915 vgpu with PV feature support
URL : https://patchwork.freedesktop.org/series/81400/
State : warning
== Summary ==
$ dim checkpatch origin/drm-tip
b72c9e3578ae drm/i915: introduced vgpu pv capability
-:98: CHECK:PARENTHESIS_ALIGNMENT: Alignment should
implemented pv workload submission support within GVTg.
GVTg to read engine submission data (engine lrc) from the shared_page
with pv interface to reduce mmio trap cost and then eliminate
execlist HW behavior emulation by removing injecting context switch
interrupt to guest under workload
based on the common shared memory, vgpu pv command transport buffer (CTB)
protocol is implemented which is a simple pv command buffer ring with pv
command descriptor used to perform guest-2-gvt single direction commucation
between guest and host GVTg.
with this CTB, guest can send PV command with
to improve efficiency and reduce the complexsity of vgpu ggtt support,
vgpu ggtt page table operations are implemented in pv fashion and
implemented pv version of bind/unbind for ggtt vma ops.
The pv version of ggtt vma ops use the CTB protocol to communicate pv ggtt
command along with data
to improve efficiency and reduce the complexsity of vgpu ppgtt support,
vgpu ppgtt page table operations are implemented in pv fashion and
implemented pv version of bind/unbind for ppgtt vma ops.
The pv version of ppgtt vma ops use the CTB protocol to communicate
pv ppgtt command along with data
This patch is to handle ppgtt PV_CMD_BIND_GGTT and PV_CMD_UNBIND_GGTT
for pv ggtt, it is operated (bind/unbind) per vma instead of per ggtt
entry mmio update to improve efficiency
Signed-off-by: Xiaolin Zhang
---
drivers/gpu/drm/i915/gvt/gtt.c | 83 +
To support vgpu pv features, a common shared memory is setup used for
communication and data exchange between guest and host GVTg to reduce
data access overhead and trap cost.
guest i915 will allocate this common memory (1 page size) and then pass
it's physical address to host GVTg through PVINFO
to enable vgpu pv feature, pv capability is introduced for guest by
new pv_caps member in struct i915_virtual_gpu and for host GVT by
new pv_caps register in struct vgt_if.
both of them are used to control different pv feature support in each
domain and the final pv caps runtime negotiated
host side to implement vgpu PV CTB protocol. based on the protocol,
CTB read functionality is implemented to handle pv command from guest.
Signed-off-by: Xiaolin Zhang
---
drivers/gpu/drm/i915/gvt/handlers.c | 119 +++-
1 file changed, 118 insertions(+), 1
GVTg implemented guest shared_page register operation and read and write
shared_page functionality based on hypervisor read and write functionality.
the shared_page_gpa was passed from guest driver through PVINFO
shared_page_gpa register.
Signed-off-by: Xiaolin Zhang
---
This patch is to handle ppgtt PV_CMD_BIND_PPGTT and PV_CMD_UNBIND_PPGTT
for ppgtt, it creates local ppgtt tables and set up the PTE's directly
from the PV command data from guest, which does not track the usage of
guest page table and remove the cost of write protection from the
original PPGTT
to improve efficiency and reduce the complexity of vgpu workload
submission support, a pv version of workload submission backend
implemented with engine submission data in the shared memory and
eliminating execlists csb process and context switch interrupt
in submisision routine.
new
expose pv_caps PVINFO register from GVTg to guest in order that guest can
query and control different pv capability support.
report VGT_CAPS_PV capability in pvinfo page for guest.
Signed-off-by: Xiaolin Zhang
---
drivers/gpu/drm/i915/gvt/gvt.h | 8
This is new i915 VGPU PV design based on the last year proposal [1].
This is a new series of patch set and discontiued the old series of
patch set due to this new design.
To improve vgpu performance, it could implement some PV optimizations
in different gpu resource domain to reduce the data
Hi All,
Note this is just FYI, in case I did anything wrong...
Now that it is finally fully acked up and has passed CI
I have pushed my atomic-pwm support for i915 series to
dinq.
This let to a conflict in drm-tip. The problem was that
in dinq prior to my push intel_panel.c had the following
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