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| author | Zhi Wang <zhi.a.wang@intel.com> | 2015-09-17 04:22:08 +0300 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2016-10-14 13:12:22 +0300 |
| commit | c8fe6a6811a7186656379d0c27e85325a966077a (patch) | |
| tree | ee8294cf5ff5d49dcc95d868b1b6d75f7d08c323 /drivers/gpu/drm/i915/gvt/debug.h | |
| parent | 3f728236c5166052f88474412059cc63540cd27a (diff) | |
| download | linux-c8fe6a6811a7186656379d0c27e85325a966077a.tar.xz | |
drm/i915/gvt: vGPU interrupt virtualization.
This patch introduces vGPU interrupt emulation framework.
The vGPU intrerrupt emulation framework is an event-based interrupt
emulation framework. It's responsible for emulating GEN hardware interrupts
during emulating other HW behaviour.
It consists several components:
- Descriptions of interrupt register bit
- Upper level <-> lower level interrupt mapping
- GEN HW IER/IMR/IIR register emulation routines
- Event-based interrupt propagation interface
When a GVT-g component wants to inject an interrupt to a VM during a
emulation, first it should specify the event needs to be emulated and the
framework will deal with the rest of emulation:
- Generating related virtual IIR bit according to virtual IER and IMRs,
- Generate related virtual upper level virtual IIR bit accodring to the
per-platform interrupt mapping
- Injecting a MSI to VM
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/debug.h')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/debug.h | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/gvt/debug.h b/drivers/gpu/drm/i915/gvt/debug.h index f9f0923feb9e..1be93e855d7e 100644 --- a/drivers/gpu/drm/i915/gvt/debug.h +++ b/drivers/gpu/drm/i915/gvt/debug.h @@ -30,8 +30,7 @@ #define gvt_dbg_core(fmt, args...) \ DRM_DEBUG_DRIVER("gvt: core: "fmt, ##args) -/* - * Other GVT debug stuff will be introduced in the GVT device model patches. - */ +#define gvt_dbg_irq(fmt, args...) \ + DRM_DEBUG_DRIVER("gvt: irq: "fmt, ##args) #endif |