diff options
| author | Christoph Hellwig <hch@lst.de> | 2022-04-11 16:13:46 +0200 |
|---|---|---|
| committer | Zhi Wang <zhi.a.wang@intel.com> | 2022-04-21 07:36:56 -0400 |
| commit | b3bece34956f86dcc8307f20b41a072ccdc917dc (patch) | |
| tree | da42665cd5eac0275afc694a974e2468ad961bfa /drivers/gpu/drm/i915/gvt/mpt.h | |
| parent | 4c705ad0d784fd9ae7160d8c4e0a151abe465dbc (diff) | |
| download | linux-next-b3bece34956f86dcc8307f20b41a072ccdc917dc.tar.gz | |
drm/i915/gvt: devirtualize ->inject_msi
Just open code the MSI injection in a single place instead of going
through the method table.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20220411141403.86980-18-hch@lst.de
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/mpt.h')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/mpt.h | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/drivers/gpu/drm/i915/gvt/mpt.h b/drivers/gpu/drm/i915/gvt/mpt.h index 78efcf1e6946..59369e8b3b69 100644 --- a/drivers/gpu/drm/i915/gvt/mpt.h +++ b/drivers/gpu/drm/i915/gvt/mpt.h @@ -71,43 +71,6 @@ static inline void intel_gvt_hypervisor_host_exit(struct device *dev, void *gvt) intel_gvt_host.mpt->host_exit(dev, gvt); } -#define MSI_CAP_CONTROL(offset) (offset + 2) -#define MSI_CAP_ADDRESS(offset) (offset + 4) -#define MSI_CAP_DATA(offset) (offset + 8) -#define MSI_CAP_EN 0x1 - -/** - * intel_gvt_hypervisor_inject_msi - inject a MSI interrupt into vGPU - * - * Returns: - * Zero on success, negative error code if failed. - */ -static inline int intel_gvt_hypervisor_inject_msi(struct intel_vgpu *vgpu) -{ - unsigned long offset = vgpu->gvt->device_info.msi_cap_offset; - u16 control, data; - u32 addr; - int ret; - - control = *(u16 *)(vgpu_cfg_space(vgpu) + MSI_CAP_CONTROL(offset)); - addr = *(u32 *)(vgpu_cfg_space(vgpu) + MSI_CAP_ADDRESS(offset)); - data = *(u16 *)(vgpu_cfg_space(vgpu) + MSI_CAP_DATA(offset)); - - /* Do not generate MSI if MSIEN is disable */ - if (!(control & MSI_CAP_EN)) - return 0; - - if (WARN(control & GENMASK(15, 1), "only support one MSI format\n")) - return -EINVAL; - - trace_inject_msi(vgpu->id, addr, data); - - ret = intel_gvt_host.mpt->inject_msi(vgpu, addr, data); - if (ret) - return ret; - return 0; -} - /** * intel_gvt_hypervisor_enable_page_track - track a guest page * @vgpu: a vGPU |