From: Zhi Wang Date: Fri, 31 Mar 2017 16:00:53 +0000 (+0800) Subject: drm/i915/gvt: Fix firmware loading interface for GVT-g golden HW state X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=aa4ce4493c88dc324911152d1ccd25469366dba3;p=openwrt%2Fstaging%2Fblogic.git drm/i915/gvt: Fix firmware loading interface for GVT-g golden HW state Firmware loading interface for GVT-g golden HW state has been broken before. This patch fixes GVT-g firmware loading interface. A user should apply this patch if he wants to load GVT-g golden HW state from firmware interface. Fixes: 579cea5 ("drm/i915/gvt: golden virtual HW state management") Cc: Zhenyu Wang Cc: drm-intel-fixes@lists.freedesktop.org Signed-off-by: Zhi Wang Signed-off-by: Zhenyu Wang --- diff --git a/drivers/gpu/drm/i915/gvt/firmware.c b/drivers/gpu/drm/i915/gvt/firmware.c index 933a7c211a1c..dce8d15f706f 100644 --- a/drivers/gpu/drm/i915/gvt/firmware.c +++ b/drivers/gpu/drm/i915/gvt/firmware.c @@ -75,11 +75,11 @@ static int expose_firmware_sysfs(struct intel_gvt *gvt) struct gvt_firmware_header *h; void *firmware; void *p; - unsigned long size; + unsigned long size, crc32_start; int i; int ret; - size = sizeof(*h) + info->mmio_size + info->cfg_space_size - 1; + size = sizeof(*h) + info->mmio_size + info->cfg_space_size; firmware = vzalloc(size); if (!firmware) return -ENOMEM; @@ -112,6 +112,9 @@ static int expose_firmware_sysfs(struct intel_gvt *gvt) memcpy(gvt->firmware.mmio, p, info->mmio_size); + crc32_start = offsetof(struct gvt_firmware_header, crc32) + 4; + h->crc32 = crc32_le(0, firmware + crc32_start, size - crc32_start); + firmware_attr.size = size; firmware_attr.private = firmware; @@ -234,7 +237,7 @@ int intel_gvt_load_firmware(struct intel_gvt *gvt) firmware->mmio = mem; - sprintf(path, "%s/vid_0x%04x_did_0x%04x_rid_0x%04x.golden_hw_state", + sprintf(path, "%s/vid_0x%04x_did_0x%04x_rid_0x%02x.golden_hw_state", GVT_FIRMWARE_PATH, pdev->vendor, pdev->device, pdev->revision);