[PATCH 0/2] Disable automatic load CCS load balancing
Hi, this series does basically two things: 1. Disables automatic load balancing as adviced by the hardware workaround. 2. Assigns all the CCS slices to one single user engine. The user will then be able to query only one CCS engine Changelog = - In Patch 1 use the correct workaround number (thanks Matt). - In Patch 2 do not add the extra CCS engines to the exposed UABI engine list and adapt the engine counting accordingly (thanks Tvrtko). - Reword the commit of Patch 2 (thanks John). Andi Shyti (2): drm/i915/gt: Disable HW load balancing for CCS drm/i915/gt: Enable only one CCS for compute workload drivers/gpu/drm/i915/gt/intel_engine_user.c | 9 + drivers/gpu/drm/i915/gt/intel_gt.c | 11 +++ drivers/gpu/drm/i915/gt/intel_gt_regs.h | 3 +++ drivers/gpu/drm/i915/gt/intel_workarounds.c | 6 ++ drivers/gpu/drm/i915/i915_query.c | 1 + 5 files changed, 30 insertions(+) -- 2.43.0
Re: [PATCH 0/2] Disable automatic load CCS load balancing
Please, ignore, I sent V1 again. Sorry about the noise! Andi On Tue, Feb 20, 2024 at 03:20:32PM +0100, Andi Shyti wrote: > Hi, > > this series does basically two things: > > 1. Disables automatic load balancing as adviced by the hardware >workaround. > > 2. Forces the sharing of the load submitted to CCS among all the >CCS available (as of now only DG2 has more than one CCS). This >way the user, when sending a query, will see only one CCS >available. > > Andi > > Andi Shyti (2): > drm/i915/gt: Disable HW load balancing for CCS > drm/i915/gt: Set default CCS mode '1' > > drivers/gpu/drm/i915/gt/intel_gt.c | 11 +++ > drivers/gpu/drm/i915/gt/intel_gt_regs.h | 3 +++ > drivers/gpu/drm/i915/gt/intel_workarounds.c | 6 ++ > drivers/gpu/drm/i915/i915_drv.h | 17 + > drivers/gpu/drm/i915/i915_query.c | 5 +++-- > 5 files changed, 40 insertions(+), 2 deletions(-) > > -- > 2.43.0
Re: [PATCH 0/2] Disable automatic load CCS load balancing
Hi, I'm sorry, I forgot to add the changelog. Here it is: v1 -> v2 - In Patch 1 use the correct workaround number (thanks Matt). - In Patch 2 do not add the extra CCS engines to the exposed UABI engine list and adapt the engine counting accordingly (thanks Tvrtko). - Reword the commit of Patch 2 (thanks John). On Tue, Feb 20, 2024 at 03:20:32PM +0100, Andi Shyti wrote: > Hi, > > this series does basically two things: > > 1. Disables automatic load balancing as adviced by the hardware >workaround. > > 2. Forces the sharing of the load submitted to CCS among all the >CCS available (as of now only DG2 has more than one CCS). This >way the user, when sending a query, will see only one CCS >available. > > Andi > > Andi Shyti (2): > drm/i915/gt: Disable HW load balancing for CCS > drm/i915/gt: Set default CCS mode '1' > > drivers/gpu/drm/i915/gt/intel_gt.c | 11 +++ > drivers/gpu/drm/i915/gt/intel_gt_regs.h | 3 +++ > drivers/gpu/drm/i915/gt/intel_workarounds.c | 6 ++ > drivers/gpu/drm/i915/i915_drv.h | 17 + > drivers/gpu/drm/i915/i915_query.c | 5 +++-- > 5 files changed, 40 insertions(+), 2 deletions(-) > > -- > 2.43.0
[PATCH 0/2] Disable automatic load CCS load balancing
Hi, this series does basically two things: 1. Disables automatic load balancing as adviced by the hardware workaround. 2. Forces the sharing of the load submitted to CCS among all the CCS available (as of now only DG2 has more than one CCS). This way the user, when sending a query, will see only one CCS available. Andi Andi Shyti (2): drm/i915/gt: Disable HW load balancing for CCS drm/i915/gt: Set default CCS mode '1' drivers/gpu/drm/i915/gt/intel_gt.c | 11 +++ drivers/gpu/drm/i915/gt/intel_gt_regs.h | 3 +++ drivers/gpu/drm/i915/gt/intel_workarounds.c | 6 ++ drivers/gpu/drm/i915/i915_drv.h | 17 + drivers/gpu/drm/i915/i915_query.c | 5 +++-- 5 files changed, 40 insertions(+), 2 deletions(-) -- 2.43.0
[PATCH 0/2] Disable automatic load CCS load balancing
Hi, this series does basically two things: 1. Disables automatic load balancing as adviced by the hardware workaround. 2. Forces the sharing of the load submitted to CCS among all the CCS available (as of now only DG2 has more than one CCS). This way the user, when sending a query, will see only one CCS available. Andi Andi Shyti (2): drm/i915/gt: Disable HW load balancing for CCS drm/i915/gt: Set default CCS mode '1' drivers/gpu/drm/i915/gt/intel_gt.c | 11 +++ drivers/gpu/drm/i915/gt/intel_gt_regs.h | 3 +++ drivers/gpu/drm/i915/gt/intel_workarounds.c | 6 ++ drivers/gpu/drm/i915/i915_drv.h | 17 + drivers/gpu/drm/i915/i915_query.c | 5 +++-- 5 files changed, 40 insertions(+), 2 deletions(-) -- 2.43.0
