Merge tag 'drm-for-v4.12' of git://people.freedesktop.org/~airlied/linux

Pull drm u pdates from Dave Airlie:
 "This is the main drm pull request for v4.12. Apart from two fixes
  pulls, everything should have been in drm-next for at least 2 weeks.

  The biggest thing in here is AMD released the public headers for their
  upcoming VEGA GPUs. These as always are quite a sizeable chunk of
  header files. They've also added initial non-display support for those
  GPUs, though they aren't available in production yet.

  Otherwise it's pretty much normal.

  New bridge drivers:
   - megachips-stdpxxxx-ge-b850v3-fw LVDS->DP++
   - generic LVDS bridge support.

  Core:
   - Displayport link train failure reporting to userspace
   - debugfs interface cleaned up
   - subsystem TODO in kerneldoc now
   - Extended fbdev support (flipping and vblank wait)
   - drm_platform removed
   - EDP CRC support in helper
   - HF-VSDB SCDC support in EDID parser
   - Lots of code cleanups and header extraction
   - Thunderbolt external GPU awareness
   - Atomic helper improvements
   - Documentation improvements

  panel:
   - Sitronix and Samsung new panel support

  amdgpu:
   - Preliminary vega10 support
   - Multi-level page table support
   - GPU sensor support for userspace
   - PRT support for sparse buffers
   - SR-IOV improvements
   - Non-contig VRAM CPU mapping

  i915:
   - Atomic modesetting enabled by default on Gen5+
   - LSPCON improvements
   - Atomic state handling for cdclk
   - GPU reset improvements
   - In-kernel unit tests
   - Geminilake improvements and color manager support
   - Designware i2c fixes
   - vblank evasion improvements
   - Hotplug safe connector iterators
   - GVT scheduler QoS support
   - GVT Kabylake support

  nouveau:
   - Acceleration support for Pascal (GP10x).
   - Rearchitecture of code handling proprietary signed firmware
   - Fix GTX 970 with odd MMU configuration
   - GP10B support
   - GP107 acceleration support

  vmwgfx:
   - Atomic modesetting support for vmwgfx

  omapdrm:
   - Support for render nodes
   - Refactor omapdss code
   - Fix some probe ordering issues
   - Fix too dark RGB565 rendering

  sunxi:
   - prelim rework for multiple pipes.

  mali-dp:
   - Color management support
   - Plane scaling
   - Power management improvements

  imx-drm:
   - Prefetch Resolve Engine/Gasket on i.MX6QP
   - Deferred plane disabling
   - Separate alpha support

  mediatek:
   - Mediatek SoC MT2701 support

  rcar-du:
   - Gen3 HDMI support

  msm:
   - 4k support for newer chips
   - OPP bindings for gpu
   - prep work for per-process pagetables

  vc4:
   - HDMI audio support
   - fixes

  qxl:
   - minor fixes.

  dw-hdmi:
   - PHY improvements
   - CSC fixes
   - Amlogic GX SoC support"

* tag 'drm-for-v4.12' of git://people.freedesktop.org/~airlied/linux: (1778 commits)
  drm/nouveau/fb/gf100-: Fix 32 bit wraparound in new ram detection
  drm/nouveau/secboot/gm20b: fix the error return code in gm20b_secboot_tegra_read_wpr()
  drm/nouveau/kms: Increase max retries in scanout position queries.
  drm/nouveau/bios/bitP: check that table is long enough for optional pointers
  drm/nouveau/fifo/nv40: no ctxsw for pre-nv44 mpeg engine
  drm: mali-dp: use div_u64 for expensive 64-bit divisions
  drm/i915: Confirm the request is still active before adding it to the await
  drm/i915: Avoid busy-spinning on VLV_GLTC_PW_STATUS mmio
  drm/i915/selftests: Allocate inode/file dynamically
  drm/i915: Fix system hang with EI UP masked on Haswell
  drm/i915: checking for NULL instead of IS_ERR() in mock selftests
  drm/i915: Perform link quality check unconditionally during long pulse
  drm/i915: Fix use after free in lpe_audio_platdev_destroy()
  drm/i915: Use the right mapping_gfp_mask for final shmem allocation
  drm/i915: Make legacy cursor updates more unsynced
  drm/i915: Apply a cond_resched() to the saturated signaler
  drm/i915: Park the signaler before sleeping
  drm: mali-dp: Check the mclk rate and allow up/down scaling
  drm: mali-dp: Enable image enhancement when scaling
  drm: mali-dp: Add plane upscaling support
  ...

1 files changed, 112 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
new file mode 100644
index 000000000000..4b9abd68e04f
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
@@ -0,0 +1,112 @@
+/*
+ * Copyright 2016 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 <drm/drmP.h>
+#include <drm/amdgpu_drm.h>
+#include "amdgpu.h"
+#include "atomfirmware.h"
+#include "amdgpu_atomfirmware.h"
+#include "atom.h"
+
+#define get_index_into_master_table(master_table, table_name) (offsetof(struct master_table, table_name) / sizeof(uint16_t))
+
+bool amdgpu_atomfirmware_gpu_supports_virtualization(struct amdgpu_device *adev)
+{
+	int index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
+						firmwareinfo);
+	uint16_t data_offset;
+
+	if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, NULL,
+					  NULL, NULL, &data_offset)) {
+		struct atom_firmware_info_v3_1 *firmware_info =
+			(struct atom_firmware_info_v3_1 *)(adev->mode_info.atom_context->bios +
+							   data_offset);
+
+		if (le32_to_cpu(firmware_info->firmware_capability) &
+		    ATOM_FIRMWARE_CAP_GPU_VIRTUALIZATION)
+			return true;
+	}
+	return false;
+}
+
+void amdgpu_atomfirmware_scratch_regs_init(struct amdgpu_device *adev)
+{
+	int index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
+						firmwareinfo);
+	uint16_t data_offset;
+
+	if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, NULL,
+					  NULL, NULL, &data_offset)) {
+		struct atom_firmware_info_v3_1 *firmware_info =
+			(struct atom_firmware_info_v3_1 *)(adev->mode_info.atom_context->bios +
+							   data_offset);
+
+		adev->bios_scratch_reg_offset =
+			le32_to_cpu(firmware_info->bios_scratch_reg_startaddr);
+	}
+}
+
+void amdgpu_atomfirmware_scratch_regs_save(struct amdgpu_device *adev)
+{
+	int i;
+
+	for (i = 0; i < AMDGPU_BIOS_NUM_SCRATCH; i++)
+		adev->bios_scratch[i] = RREG32(adev->bios_scratch_reg_offset + i);
+}
+
+void amdgpu_atomfirmware_scratch_regs_restore(struct amdgpu_device *adev)
+{
+	int i;
+
+	for (i = 0; i < AMDGPU_BIOS_NUM_SCRATCH; i++)
+		WREG32(adev->bios_scratch_reg_offset + i, adev->bios_scratch[i]);
+}
+
+int amdgpu_atomfirmware_allocate_fb_scratch(struct amdgpu_device *adev)
+{
+	struct atom_context *ctx = adev->mode_info.atom_context;
+	int index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
+						vram_usagebyfirmware);
+	uint16_t data_offset;
+	int usage_bytes = 0;
+
+	if (amdgpu_atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) {
+		struct vram_usagebyfirmware_v2_1 *firmware_usage =
+			(struct vram_usagebyfirmware_v2_1 *)(ctx->bios + data_offset);
+
+		DRM_DEBUG("atom firmware requested %08x %dkb fw %dkb drv\n",
+			  le32_to_cpu(firmware_usage->start_address_in_kb),
+			  le16_to_cpu(firmware_usage->used_by_firmware_in_kb),
+			  le16_to_cpu(firmware_usage->used_by_driver_in_kb));
+
+		usage_bytes = le16_to_cpu(firmware_usage->used_by_driver_in_kb) * 1024;
+	}
+	ctx->scratch_size_bytes = 0;
+	if (usage_bytes == 0)
+		usage_bytes = 20 * 1024;
+	/* allocate some scratch memory */
+	ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL);
+	if (!ctx->scratch)
+		return -ENOMEM;
+	ctx->scratch_size_bytes = usage_bytes;
+	return 0;
+}