Merge tag 'drm-next-2020-12-11' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "Not a huge amount of big things here, AMD has support for a few new HW
  variants (vangogh, green sardine, dimgrey cavefish), Intel has some
  more DG1 enablement. We have a few big reworks of the TTM layers and
  interfaces, GEM and atomic internal API reworks cross tree. fbdev is
  marked orphaned in here as well to reflect the current reality.

  core:
   - documentation updates
   - deprecate DRM_FORMAT_MOD_NONE
   - atomic crtc enable/disable rework
   - GEM convert drivers to gem object functions
   - remove SCATTER_LIST_MAX_SEGMENT

  sched:
   - avoid infinite waits

  ttm:
   - remove AGP support
   - don't modify caching for swapout
   - ttm pinning rework
   - major TTM reworks
   - new backend allocator
   - multihop support

  vram-helper:
   - top down BO placement fix
   - TTM changes
   - GEM object support

  displayport:
   - DP 2.0 DPCD prep work
   - DP MST extended DPCD caps

  fbdev:
   - mark as orphaned

  amdgpu:
   - Initial Vangogh support
   - Green Sardine support
   - Dimgrey Cavefish support
   - SG display support for renoir
   - SMU7 improvements
   - gfx9+ modiifier support
   - CI BACO fixes

  radeon:
   - expose voltage via hwmon on SUMO

  amdkfd:
   - fix unique id handling

  i915:
   - more DG1 enablement
   - bigjoiner support
   - integer scaling filter support
   - async flip support
   - ICL+ DSI command mode
   - Improve display shutdown
   - Display refactoring
   - eLLC machine fbdev loading fix
   - dma scatterlist fixes
   - TGL hang fixes
   - eLLC display buffer caching on SKL+
   - MOCS PTE seeting for gen9+

  msm:
   - Shutdown hook
   - GPU cooling device support
   - DSI 7nm and 10nm phy/pll updates
   - sm8150/sm2850 DPU support
   - GEM locking re-work
   - LLCC system cache support

  aspeed:
   - sysfs output config support

  ast:
   - LUT fix
   - new display mode

  gma500:
   - remove 2d framebuffer accel

  panfrost:
   - move gpu reset to a worker

  exynos:
   - new HDMI mode support

  mediatek:
   - MT8167 support
   - yaml bindings
   - MIPI DSI phy code moved

  etnaviv:
   - new perf counter
   - more lockdep annotation

  hibmc:
   - i2c DDC support

  ingenic:
   - pixel clock reset fix
   - reserved memory support
   - allow both DMA channels at once
   - different pixel format support
   - 30/24/8-bit palette modes

  tilcdc:
   - don't keep vblank irq enabled

  vc4:
   - new maintainer added
   - DSI registration fix

  virtio:
   - blob resource support
   - host visible and cross-device support
   - uuid api support"

* tag 'drm-next-2020-12-11' of git://anongit.freedesktop.org/drm/drm: (1754 commits)
  drm/amdgpu: Initialise drm_gem_object_funcs for imported BOs
  drm/amdgpu: fix size calculation with stolen vga memory
  drm/amdgpu: remove amdgpu_ttm_late_init  and amdgpu_bo_late_init
  drm/amdgpu: free the pre-OS console framebuffer after the first modeset
  drm/amdgpu: enable runtime pm using BACO on CI dGPUs
  drm/amdgpu/cik: enable BACO reset on Bonaire
  drm/amd/pm: update smu10.h WORKLOAD_PPLIB setting for raven
  drm/amd/pm: remove one unsupported smu function for vangogh
  drm/amd/display: setup system context for APUs
  drm/amd/display: add S/G support for Vangogh
  drm/amdkfd: Fix leak in dmabuf import
  drm/amdgpu: use AMDGPU_NUM_VMID when possible
  drm/amdgpu: fix sdma instance fw version and feature version init
  drm/amd/pm: update driver if version for dimgrey_cavefish
  drm/amd/display: 3.2.115
  drm/amd/display: [FW Promotion] Release 0.0.45
  drm/amd/display: Revert DCN2.1 dram_clock_change_latency update
  drm/amd/display: Enable gpu_vm_support for dcn3.01
  drm/amd/display: Fixed the audio noise during mode switching with HDCP mode on
  drm/amd/display: Add wm table for Renoir
  ...

1 files changed, 141 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fw_attestation.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fw_attestation.c
new file mode 100644
index 000000000000..7c6e02e35573
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fw_attestation.c
@@ -0,0 +1,141 @@
+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include <linux/debugfs.h>
+#include <linux/firmware.h>
+#include <linux/dma-mapping.h>
+
+#include "amdgpu.h"
+#include "amdgpu_fw_attestation.h"
+#include "amdgpu_psp.h"
+#include "amdgpu_ucode.h"
+#include "soc15_common.h"
+
+#define FW_ATTESTATION_DB_COOKIE        0x143b6a37
+#define FW_ATTESTATION_RECORD_VALID  	1
+#define FW_ATTESTATION_MAX_SIZE		4096
+
+typedef struct FW_ATT_DB_HEADER
+{
+	uint32_t AttDbVersion;           /* version of the fwar feature */
+	uint32_t AttDbCookie;            /* cookie as an extra check for corrupt data */
+} FW_ATT_DB_HEADER;
+
+typedef struct FW_ATT_RECORD
+{
+	uint16_t AttFwIdV1;              /* Legacy FW Type field */
+	uint16_t AttFwIdV2;              /* V2 FW ID field */
+	uint32_t AttFWVersion;           /* FW Version */
+	uint16_t AttFWActiveFunctionID;  /* The VF ID (only in VF Attestation Table) */
+	uint16_t AttSource;              /* FW source indicator */
+	uint16_t RecordValid;            /* Indicates whether the record is a valid entry */
+	uint8_t  AttFwTaId;              /* Ta ID (only in TA Attestation Table) */
+	uint8_t  Reserved;
+} FW_ATT_RECORD;
+
+static ssize_t amdgpu_fw_attestation_debugfs_read(struct file *f,
+						  char __user *buf,
+						  size_t size,
+						  loff_t *pos)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)file_inode(f)->i_private;
+	uint64_t records_addr = 0;
+	uint64_t vram_pos = 0;
+	FW_ATT_DB_HEADER fw_att_hdr = {0};
+	FW_ATT_RECORD fw_att_record = {0};
+
+	if (size < sizeof(FW_ATT_RECORD)) {
+		DRM_WARN("FW attestation input buffer not enough memory");
+		return -EINVAL;
+	}
+
+	if ((*pos + sizeof(FW_ATT_DB_HEADER)) >= FW_ATTESTATION_MAX_SIZE) {
+		DRM_WARN("FW attestation out of bounds");
+		return 0;
+	}
+
+	if (psp_get_fw_attestation_records_addr(&adev->psp, &records_addr)) {
+		DRM_WARN("Failed to get FW attestation record address");
+		return -EINVAL;
+	}
+
+	vram_pos =  records_addr - adev->gmc.vram_start;
+
+	if (*pos == 0) {
+		amdgpu_device_vram_access(adev,
+					  vram_pos,
+					  (uint32_t*)&fw_att_hdr,
+					  sizeof(FW_ATT_DB_HEADER),
+					  false);
+
+		if (fw_att_hdr.AttDbCookie != FW_ATTESTATION_DB_COOKIE) {
+			DRM_WARN("Invalid FW attestation cookie");
+			return -EINVAL;
+		}
+
+		DRM_INFO("FW attestation version = 0x%X", fw_att_hdr.AttDbVersion);
+	}
+
+	amdgpu_device_vram_access(adev,
+				  vram_pos + sizeof(FW_ATT_DB_HEADER) + *pos,
+				  (uint32_t*)&fw_att_record,
+				  sizeof(FW_ATT_RECORD),
+				  false);
+
+	if (fw_att_record.RecordValid != FW_ATTESTATION_RECORD_VALID)
+		return 0;
+
+	if (copy_to_user(buf, (void*)&fw_att_record, sizeof(FW_ATT_RECORD)))
+		return -EINVAL;
+
+	*pos += sizeof(FW_ATT_RECORD);
+
+	return sizeof(FW_ATT_RECORD);
+}
+
+static const struct file_operations amdgpu_fw_attestation_debugfs_ops = {
+	.owner = THIS_MODULE,
+	.read = amdgpu_fw_attestation_debugfs_read,
+	.write = NULL,
+	.llseek = default_llseek
+};
+
+static int amdgpu_is_fw_attestation_supported(struct amdgpu_device *adev)
+{
+	if (adev->asic_type >= CHIP_SIENNA_CICHLID)
+		return 1;
+
+	return 0;
+}
+
+void amdgpu_fw_attestation_debugfs_init(struct amdgpu_device *adev)
+{
+	if (!amdgpu_is_fw_attestation_supported(adev))
+		return;
+
+	debugfs_create_file("amdgpu_fw_attestation",
+			    S_IRUSR,
+			    adev_to_drm(adev)->primary->debugfs_root,
+			    adev,
+			    &amdgpu_fw_attestation_debugfs_ops);
+}