kernel/drivers/gpu/drm/i915/gvt/debug.h, branch linux-6.5.y

drm/i915/gvt: Make gvt_vgpu_err use pr_err

2017-11-16T03:48:34Z

gvt_vgpu_err means something goes wrong. We need the error propagates to kernel message by default. Signed-off-by: Changbin Du Signed-off-by: Zhenyu Wang

drm/i915/gvt: Use dyndbg for gvt debug info

2017-11-16T03:46:52Z

It's better enable/disable and classify gvt debug info dynamically. This patch change it to dyndbg so can be dynamically enable/disable each item. All gvt log can be enabled by, $ echo 'file *gvt* +p' > /sys/kernel/debug/dynamic_debug/control Signed-off-by: Shuo Liu Signed-off-by: Zhenyu Wang

drm/i915/gvt: replace the gvt_err with gvt_vgpu_err

2017-03-17T08:46:45Z

gvt_err should be used only for the very few critical error message during host i915 drvier initialization. This patch 1. removes the redundant gvt_err; 2. creates a new gvt_vgpu_err to show errors caused by vgpu; 3. replaces the most gvt_err with gvt_vgpu_err; 4. leaves very few gvt_err for dumping gvt error during host gvt initialization. v2. change name to gvt_vgpu_err and add vgpu id to the message. (Kevin) add gpu id to gvt_vgpu_err. (Zhi) v3. remove gpu id from gvt_vgpu_err caller. (Zhi) v4. add vgpu check to the gvt_vgpu_err macro. (Zhiyuan) v5. add comments for v3 and v4. v6. split the big patch into two, with this patch only for checking gvt_vgpu_err. (Zhenyu) v7. rebase to staging branch v8. rebase to fix branch Signed-off-by: Tina Zhang Signed-off-by: Zhenyu Wang

drm/i915/gvt: vGPU command scanner

2016-10-14T10:15:25Z

This patch introduces a command scanner to scan guest command buffers. Signed-off-by: Yulei Zhang Signed-off-by: Zhi Wang Signed-off-by: Zhenyu Wang

drm/i915/gvt: vGPU context switch

2016-10-14T10:15:13Z

As different VM may configure different render MMIOs when executing workload, to schedule workloads between different VM, the render MMIOs have to be switched. Signed-off-by: Zhi Wang Signed-off-by: Zhenyu Wang

drm/i915/gvt: vGPU workload scheduler

2016-10-14T10:14:50Z

This patch introduces the vGPU workload scheduler routines. GVT workload scheduler is responsible for picking and executing GVT workload from current scheduled vGPU. Before the workload is submitted to host i915, the guest execlist context will be shadowed in the host GVT shadow context. the instructions in guest ring buffer will be copied into GVT shadow ring buffer. Then GVT-g workload scheduler will scan the instructions in guest ring buffer and submit it to host i915. Signed-off-by: Zhi Wang Signed-off-by: Zhenyu Wang

drm/i915/gvt: vGPU execlist virtualization

2016-10-14T10:14:28Z

This patch introduces the vGPU execlist virtualization. Under virtulization environment, HW execlist interface are fully emulated including virtual CSB emulation, virtual execlist emulation. The framework will emulate the virtual CSB according to the guest workload running status Signed-off-by: Zhi Wang Signed-off-by: Zhenyu Wang

drm/i915/gvt: vGPU display virtualization

2016-10-14T10:13:06Z

This patch introduces the GVT-g display virtualization. It consists a collection of display MMIO handlers, like power well register handler, pipe register handler, plane register handler, which will emulate all display MMIOs behavior to support virtual mode setting sequence for guest. Signed-off-by: Bing Niu Signed-off-by: Zhi Wang Signed-off-by: Zhenyu Wang

drm/i915/gvt: vGPU MMIO virtualization

2016-10-14T10:12:59Z

This patch introduces the generic vGPU MMIO emulation intercept framework. The MPT modules will request GVT-g core logic to emulate MMIO read/write through IO emulation operations callback when hypervisor trapped a guest GTTMMIO read/write. Signed-off-by: Zhi Wang Signed-off-by: Zhenyu Wang

drm/i915/gvt: vGPU graphics memory virtualization

2016-10-14T10:12:33Z

The vGPU graphics memory emulation framework is responsible for graphics memory table virtualization. Under virtualization environment, a VM will populate the page table entry with guest page frame number(GPFN/GFN), while HW needs a page table filled with MFN(Machine frame number). The relationship between GFN and MFN(Machine frame number) is managed by hypervisor, while GEN HW doesn't have such knowledge to translate a GFN. To solve this gap, shadow GGTT/PPGTT page table is introdcued. For GGTT, the GFN inside the guest GGTT page table entry will be translated into MFN and written into physical GTT MMIO registers when guest write virtual GTT MMIO registers. For PPGTT, a shadow PPGTT page table will be created and write-protected translated from guest PPGTT page table. And the shadow page table root pointers will be written into the shadow context after a guest workload is shadowed. vGPU graphics memory emulation framework consists: - Per-GEN HW platform page table entry bits extract/de-extract routines. - GTT MMIO register emulation handlers, which will call hypercall to do GFN->MFN translation when guest write GTT MMIO register - PPGTT shadow page table routines, e.g. shadow create/destroy/out-of-sync Signed-off-by: Zhi Wang Signed-off-by: Zhenyu Wang