[PATCH v5 00/11] cmd scanning optimization

[Zhenyu Wang]

On 2020.12.23 11:43:53 +0800, Yan Zhao wrote:
> hi
> This is a series that optimizes current command scanning logic.
> 
> Patch 1 scans a init context to parse hardware context and set
> mmio cmd accessible flag accordingly.
> 
> Patch 2 scans workload context pages.
> 
> Patches 3-5 add extra commands scan policy for "srm", "lrm", "lrr".
>             "pipe-ctrl" is a TODO to be completed in future.
> 
> patch 6 exports a find_mmio_info interface to be used in patch 10 and
>         patch 11
> 
> patch 7 extends mmio_attribute from 8 bits to 16 bits as we have been
>         running out of bits for mmio flags.
> 
> Patches 8-10 introduce a new mmio flag F_CMD_WRITE_PATCH and init this
>             flag in static handlers array and dynamically during parsing
>             init ctx.
> 
> Patch 11 unifies lri command handler with MMIO handler
>

Reviewed-by: Zhenyu Wang <zhenyuw at linux.intel.com>

> 
> changelogs:
> v5:
> - rebased to gvt-staging-2020y-12m-22d-13h-12m-37s
>  
> v4:
> - fixed the error path handling in patch 1 that may leak context unpin
> (zhenyu)
> 
> v3:
> - updated patch 7 to extend mmio_attribute to 16 bits instead of 32 bits.
> 
> v2:
> - combined serial smaller loops into one big loop in
>   intel_gvt_update_reg_whitelist() in patch 1 (zhenyu)
> - updated comment style for "pipe_ctrl" and add description for TODO
>   item. (zhenyu)
> - changed intel_gvt_mmio_set_cmd_fix_write() and
>   intel_gvt_mmio_is_cmd_fix_write() to intel_gvt_mmio_set_cmd_write_patch()
>   and intel_gvt_mmio_is_cmd_write_patch() in order to align with mmio flag
>   name. (zhenyu)
> - added patch 7 to exend mmio_attribute in order to hold more mmio
>   flags. (zhenyu)
> 
> Yan Zhao (11):
>   drm/i915/gvt: parse init context to update cmd accessible reg
>     whitelist
>   drm/i915/gvt: scan VM ctx pages
>   drm/i915/gvt: filter cmds "srm" and "lrm" in cmd_handler
>   drm/i915/gvt: filter cmds "lrr-src" and "lrr-dst" in cmd_handler
>   drm/i915/gvt: filter cmd "pipe-ctrl" in cmd_handler
>   drm/i915/gvt: export find_mmio_info
>   drm/i915/gvt: make width of mmio_attribute bigger
>   drm/i915/gvt: introduce a new flag F_CMD_WRITE_PATCH
>   drm/i915/gvt: statically set F_CMD_WRITE_PATCH flag
>   drm/i915/gvt: update F_CMD_WRITE_PATCH flag when parsing init ctx
>   drm/i915/gvt: unify lri cmd handler and mmio handlers
> 
>  drivers/gpu/drm/i915/gvt/cmd_parser.c | 335 ++++++++++++++++++++------
>  drivers/gpu/drm/i915/gvt/cmd_parser.h |   4 +
>  drivers/gpu/drm/i915/gvt/gvt.h        |  37 ++-
>  drivers/gpu/drm/i915/gvt/handlers.c   |  15 +-
>  drivers/gpu/drm/i915/gvt/mmio.h       |   3 +
>  drivers/gpu/drm/i915/gvt/reg.h        |   2 +
>  drivers/gpu/drm/i915/gvt/scheduler.c  |  22 +-
>  drivers/gpu/drm/i915/gvt/vgpu.c       |   4 +-
>  8 files changed, 339 insertions(+), 83 deletions(-)
> 
> -- 
> 2.17.1
> 

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