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path: root/drivers/gpu/drm/i915/intel_huc.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_huc.c')
-rw-r--r--drivers/gpu/drm/i915/intel_huc.c181
1 files changed, 19 insertions, 162 deletions
diff --git a/drivers/gpu/drm/i915/intel_huc.c b/drivers/gpu/drm/i915/intel_huc.c
index 8ed05182f944..65e2afb9b955 100644
--- a/drivers/gpu/drm/i915/intel_huc.c
+++ b/drivers/gpu/drm/i915/intel_huc.c
@@ -27,160 +27,9 @@
#include "intel_huc.h"
#include "i915_drv.h"
-/**
- * DOC: HuC Firmware
- *
- * Motivation:
- * GEN9 introduces a new dedicated firmware for usage in media HEVC (High
- * Efficiency Video Coding) operations. Userspace can use the firmware
- * capabilities by adding HuC specific commands to batch buffers.
- *
- * Implementation:
- * The same firmware loader is used as the GuC. However, the actual
- * loading to HW is deferred until GEM initialization is done.
- *
- * Note that HuC firmware loading must be done before GuC loading.
- */
-
-#define BXT_HUC_FW_MAJOR 01
-#define BXT_HUC_FW_MINOR 07
-#define BXT_BLD_NUM 1398
-
-#define SKL_HUC_FW_MAJOR 01
-#define SKL_HUC_FW_MINOR 07
-#define SKL_BLD_NUM 1398
-
-#define KBL_HUC_FW_MAJOR 02
-#define KBL_HUC_FW_MINOR 00
-#define KBL_BLD_NUM 1810
-
-#define HUC_FW_PATH(platform, major, minor, bld_num) \
- "i915/" __stringify(platform) "_huc_ver" __stringify(major) "_" \
- __stringify(minor) "_" __stringify(bld_num) ".bin"
-
-#define I915_SKL_HUC_UCODE HUC_FW_PATH(skl, SKL_HUC_FW_MAJOR, \
- SKL_HUC_FW_MINOR, SKL_BLD_NUM)
-MODULE_FIRMWARE(I915_SKL_HUC_UCODE);
-
-#define I915_BXT_HUC_UCODE HUC_FW_PATH(bxt, BXT_HUC_FW_MAJOR, \
- BXT_HUC_FW_MINOR, BXT_BLD_NUM)
-MODULE_FIRMWARE(I915_BXT_HUC_UCODE);
-
-#define I915_KBL_HUC_UCODE HUC_FW_PATH(kbl, KBL_HUC_FW_MAJOR, \
- KBL_HUC_FW_MINOR, KBL_BLD_NUM)
-MODULE_FIRMWARE(I915_KBL_HUC_UCODE);
-
-static void huc_fw_select(struct intel_uc_fw *huc_fw)
-{
- struct intel_huc *huc = container_of(huc_fw, struct intel_huc, fw);
- struct drm_i915_private *dev_priv = huc_to_i915(huc);
-
- GEM_BUG_ON(huc_fw->type != INTEL_UC_FW_TYPE_HUC);
-
- if (!HAS_HUC(dev_priv))
- return;
-
- if (i915_modparams.huc_firmware_path) {
- huc_fw->path = i915_modparams.huc_firmware_path;
- huc_fw->major_ver_wanted = 0;
- huc_fw->minor_ver_wanted = 0;
- } else if (IS_SKYLAKE(dev_priv)) {
- huc_fw->path = I915_SKL_HUC_UCODE;
- huc_fw->major_ver_wanted = SKL_HUC_FW_MAJOR;
- huc_fw->minor_ver_wanted = SKL_HUC_FW_MINOR;
- } else if (IS_BROXTON(dev_priv)) {
- huc_fw->path = I915_BXT_HUC_UCODE;
- huc_fw->major_ver_wanted = BXT_HUC_FW_MAJOR;
- huc_fw->minor_ver_wanted = BXT_HUC_FW_MINOR;
- } else if (IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv)) {
- huc_fw->path = I915_KBL_HUC_UCODE;
- huc_fw->major_ver_wanted = KBL_HUC_FW_MAJOR;
- huc_fw->minor_ver_wanted = KBL_HUC_FW_MINOR;
- } else {
- DRM_WARN("%s: No firmware known for this platform!\n",
- intel_uc_fw_type_repr(huc_fw->type));
- }
-}
-
-/**
- * intel_huc_init_early() - initializes HuC struct
- * @huc: intel_huc struct
- *
- * On platforms with HuC selects firmware for uploading
- */
void intel_huc_init_early(struct intel_huc *huc)
{
- struct intel_uc_fw *huc_fw = &huc->fw;
-
- intel_uc_fw_init(huc_fw, INTEL_UC_FW_TYPE_HUC);
- huc_fw_select(huc_fw);
-}
-
-/**
- * huc_ucode_xfer() - DMA's the firmware
- * @dev_priv: the drm_i915_private device
- *
- * Transfer the firmware image to RAM for execution by the microcontroller.
- *
- * Return: 0 on success, non-zero on failure
- */
-static int huc_ucode_xfer(struct intel_uc_fw *huc_fw, struct i915_vma *vma)
-{
- struct intel_huc *huc = container_of(huc_fw, struct intel_huc, fw);
- struct drm_i915_private *dev_priv = huc_to_i915(huc);
- unsigned long offset = 0;
- u32 size;
- int ret;
-
- GEM_BUG_ON(huc_fw->type != INTEL_UC_FW_TYPE_HUC);
-
- intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
-
- /* Set the source address for the uCode */
- offset = guc_ggtt_offset(vma) + huc_fw->header_offset;
- I915_WRITE(DMA_ADDR_0_LOW, lower_32_bits(offset));
- I915_WRITE(DMA_ADDR_0_HIGH, upper_32_bits(offset) & 0xFFFF);
-
- /* Hardware doesn't look at destination address for HuC. Set it to 0,
- * but still program the correct address space.
- */
- I915_WRITE(DMA_ADDR_1_LOW, 0);
- I915_WRITE(DMA_ADDR_1_HIGH, DMA_ADDRESS_SPACE_WOPCM);
-
- size = huc_fw->header_size + huc_fw->ucode_size;
- I915_WRITE(DMA_COPY_SIZE, size);
-
- /* Start the DMA */
- I915_WRITE(DMA_CTRL, _MASKED_BIT_ENABLE(HUC_UKERNEL | START_DMA));
-
- /* Wait for DMA to finish */
- ret = intel_wait_for_register_fw(dev_priv, DMA_CTRL, START_DMA, 0, 100);
-
- DRM_DEBUG_DRIVER("HuC DMA transfer wait over with ret %d\n", ret);
-
- /* Disable the bits once DMA is over */
- I915_WRITE(DMA_CTRL, _MASKED_BIT_DISABLE(HUC_UKERNEL));
-
- intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
-
- return ret;
-}
-
-/**
- * intel_huc_init_hw() - load HuC uCode to device
- * @huc: intel_huc structure
- *
- * Called from intel_uc_init_hw() during driver loading and also after a GPU
- * reset. Be note that HuC loading must be done before GuC loading.
- *
- * The firmware image should have already been fetched into memory by the
- * earlier call to intel_uc_init_fw(), so here we need only check that
- * is succeeded, and then transfer the image to the h/w.
- *
- */
-int intel_huc_init_hw(struct intel_huc *huc)
-{
- return intel_uc_fw_upload(&huc->fw, huc_ucode_xfer);
+ intel_huc_fw_init_early(huc);
}
/**
@@ -199,6 +48,7 @@ int intel_huc_auth(struct intel_huc *huc)
struct drm_i915_private *i915 = huc_to_i915(huc);
struct intel_guc *guc = &i915->guc;
struct i915_vma *vma;
+ u32 status;
int ret;
if (huc->fw.load_status != INTEL_UC_FIRMWARE_SUCCESS)
@@ -209,28 +59,35 @@ int intel_huc_auth(struct intel_huc *huc)
if (IS_ERR(vma)) {
ret = PTR_ERR(vma);
DRM_ERROR("HuC: Failed to pin huc fw object %d\n", ret);
- return ret;
+ goto fail;
}
ret = intel_guc_auth_huc(guc,
guc_ggtt_offset(vma) + huc->fw.rsa_offset);
if (ret) {
DRM_ERROR("HuC: GuC did not ack Auth request %d\n", ret);
- goto out;
+ goto fail_unpin;
}
/* Check authentication status, it should be done by now */
- ret = intel_wait_for_register(i915,
- HUC_STATUS2,
- HUC_FW_VERIFIED,
- HUC_FW_VERIFIED,
- 50);
+ ret = __intel_wait_for_register(i915,
+ HUC_STATUS2,
+ HUC_FW_VERIFIED,
+ HUC_FW_VERIFIED,
+ 2, 50, &status);
if (ret) {
- DRM_ERROR("HuC: Authentication failed %d\n", ret);
- goto out;
+ DRM_ERROR("HuC: Firmware not verified %#x\n", status);
+ goto fail_unpin;
}
-out:
i915_vma_unpin(vma);
+ return 0;
+
+fail_unpin:
+ i915_vma_unpin(vma);
+fail:
+ huc->fw.load_status = INTEL_UC_FIRMWARE_FAIL;
+
+ DRM_ERROR("HuC: Authentication failed %d\n", ret);
return ret;
}