The code of saving initial HW state snapshot has been moved into i915. Let the GVT-g core logic use that snapshot.
Cc: Christoph Hellwig hch@lst.de Cc: Jason Gunthorpe jgg@nvidia.com Cc: Jani Nikula jani.nikula@linux.intel.com Cc: Joonas Lahtinen joonas.lahtinen@linux.intel.com Cc: Vivi Rodrigo rodrigo.vivi@intel.com Cc: Zhenyu Wang zhenyuw@linux.intel.com Cc: Zhi Wang zhi.a.wang@intel.com Signed-off-by: Zhi Wang zhi.a.wang@intel.com --- drivers/gpu/drm/i915/gvt/firmware.c | 25 +++++++++---------------- 1 file changed, 9 insertions(+), 16 deletions(-)
diff --git a/drivers/gpu/drm/i915/gvt/firmware.c b/drivers/gpu/drm/i915/gvt/firmware.c index 1a8274a3f4b1..54fe442238c6 100644 --- a/drivers/gpu/drm/i915/gvt/firmware.c +++ b/drivers/gpu/drm/i915/gvt/firmware.c @@ -66,22 +66,16 @@ static struct bin_attribute firmware_attr = { .mmap = NULL, };
-static int mmio_snapshot_handler(struct intel_gvt *gvt, u32 offset, void *data) -{ - *(u32 *)(data + offset) = intel_uncore_read_notrace(gvt->gt->uncore, - _MMIO(offset)); - return 0; -} - static int expose_firmware_sysfs(struct intel_gvt *gvt) { struct intel_gvt_device_info *info = &gvt->device_info; - struct pci_dev *pdev = to_pci_dev(gvt->gt->i915->drm.dev); + struct drm_i915_private *i915 = gvt->gt->i915; + struct pci_dev *pdev = to_pci_dev(i915->drm.dev); struct gvt_firmware_header *h; void *firmware; void *p; unsigned long size, crc32_start; - int i, ret; + int ret;
size = sizeof(*h) + info->mmio_size + info->cfg_space_size; firmware = vzalloc(size); @@ -99,17 +93,16 @@ static int expose_firmware_sysfs(struct intel_gvt *gvt)
p = firmware + h->cfg_space_offset;
- for (i = 0; i < h->cfg_space_size; i += 4) - pci_read_config_dword(pdev, i, p + i); - - memcpy(gvt->firmware.cfg_space, p, info->cfg_space_size); + memcpy(gvt->firmware.cfg_space, i915->vgpu.initial_cfg_space, + info->cfg_space_size); + memcpy(p, gvt->firmware.cfg_space, info->cfg_space_size);
p = firmware + h->mmio_offset;
- /* Take a snapshot of hw mmio registers. */ - intel_gvt_for_each_tracked_mmio(gvt, mmio_snapshot_handler, p); + memcpy(gvt->firmware.mmio, i915->vgpu.initial_mmio, + info->mmio_size);
- memcpy(gvt->firmware.mmio, p, info->mmio_size); + memcpy(p, gvt->firmware.mmio, info->mmio_size);
crc32_start = offsetof(struct gvt_firmware_header, crc32) + 4; h->crc32 = crc32_le(0, firmware + crc32_start, size - crc32_start);