Merge tag 'drm-next-2019-07-16' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "The biggest thing in this is the AMD Navi GPU support, this again
  contains a bunch of header files that are large. These are the new AMD
  RX5700 GPUs that just recently became available.

  New drivers:
   - ST-Ericsson MCDE driver
   - Ingenic JZ47xx SoC

  UAPI change:
   - HDR source metadata property

  Core:
   - HDR inforframes and EDID parsing
   - drm hdmi infoframe unpacking
   - remove prime sg_table caching into dma-buf
   - New gem vram helpers to reduce driver code
   - Lots of drmP.h removal
   - reservation fencing fix
   - documentation updates
   - drm_fb_helper_connector removed
   - mode name command handler rewrite

  fbcon:
   - Remove the fbcon notifiers

  ttm:
   - forward progress fixes

  dma-buf:
   - make mmap call optional
   - debugfs refcount fixes
   - dma-fence free with pending signals fix
   - each dma-buf gets an inode

  Panels:
   - Lots of additional panel bindings

  amdgpu:
   - initial navi10 support
   - avoid hw reset
   - HDR metadata support
   - new thermal sensors for vega asics
   - RAS fixes
   - use HMM rather than MMU notifier
   - xgmi topology via kfd
   - SR-IOV fixes
   - driver reload fixes
   - DC use a core bpc attribute
   - Aux fixes for DC
   - Bandwidth calc updates for DC
   - Clock handling refactor
   - kfd VEGAM support

  vmwgfx:
   - Coherent memory support changes

  i915:
   - HDR Support
   - HDMI i2c link
   - Icelake multi-segmented gamma support
   - GuC firmware update
   - Mule Creek Canyon PCH support for EHL
   - EHL platform updtes
   - move i915.alpha_support to i915.force_probe
   - runtime PM refactoring
   - VBT parsing refactoring
   - DSI fixes
   - struct mutex dependency reduction
   - GEM code reorg

  mali-dp:
   - Komeda driver features

  msm:
   - dsi vs EPROBE_DEFER fixes
   - msm8998 snapdragon 835 support
   - a540 gpu support
   - mdp5 and dpu interconnect support

  exynos:
   - drmP.h removal

  tegra:
   - misc fixes

  tda998x:
   - audio support improvements
   - pixel repeated mode support
   - quantisation range handling corrections
   - HDMI vendor info fix

  armada:
   - interlace support fix
   - overlay/video plane register handling refactor
   - add gamma support

  rockchip:
   - RX3328 support

  panfrost:
   - expose perf counters via hidden ioctls

  vkms:
   - enumerate CRC sources list

  ast:
   - rework BO handling

  mgag200:
   - rework BO handling

  dw-hdmi:
   - suspend/resume support

  rcar-du:
   - R8A774A1 Soc Support
   - LVDS dual-link mode support
   - Additional formats
   - Misc fixes

  omapdrm:
   - DSI command mode display support

  stm
   - fb modifier support
   - runtime PM support

  sun4i:
   - use vmap ops

  vc4:
   - binner bo binding rework

  v3d:
   - compute shader support
   - resync/sync fixes
   - job management refactoring

  lima:
   - NULL pointer in irq handler fix
   - scheduler default timeout

  virtio:
   - fence seqno support
   - trace events

  bochs:
   - misc fixes

  tc458767:
   - IRQ/HDP handling

  sii902x:
   - HDMI audio support

  atmel-hlcdc:
   - misc fixes

  meson:
   - zpos support"

* tag 'drm-next-2019-07-16' of git://anongit.freedesktop.org/drm/drm: (1815 commits)
  Revert "Merge branch 'vmwgfx-next' of git://people.freedesktop.org/~thomash/linux into drm-next"
  Revert "mm: adjust apply_to_pfn_range interface for dropped token."
  mm: adjust apply_to_pfn_range interface for dropped token.
  drm/amdgpu/navi10: add uclk activity sensor
  drm/amdgpu: properly guard the generic discovery code
  drm/amdgpu: add missing documentation on new module parameters
  drm/amdgpu: don't invalidate caches in RELEASE_MEM, only do the writeback
  drm/amd/display: avoid 64-bit division
  drm/amdgpu/psp11: simplify the ucode register logic
  drm/amdgpu: properly guard DC support in navi code
  drm/amd/powerplay: vega20: fix uninitialized variable use
  drm/amd/display: dcn20: include linux/delay.h
  amdgpu: make pmu support optional
  drm/amd/powerplay: Zero initialize current_rpm in vega20_get_fan_speed_percent
  drm/amd/powerplay: Zero initialize freq in smu_v11_0_get_current_clk_freq
  drm/amd/powerplay: Use memset to initialize metrics structs
  drm/amdgpu/mes10.1: Fix header guard
  drm/amd/powerplay: add temperature sensor support for navi10
  drm/amdgpu: fix scheduler timeout calc
  drm/amdgpu: Prepare for hmm_range_register API change (v2)
  ...

1 files changed, 280 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c
new file mode 100644
index 000000000000..0e6dba9f60f0
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c
@@ -0,0 +1,280 @@
+/*
+ * Copyright 2019 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.
+ *
+ * Author: Jonathan Kim <jonathan.kim@amd.com>
+ *
+ */
+
+#include <linux/perf_event.h>
+#include <linux/init.h>
+#include "amdgpu.h"
+#include "amdgpu_pmu.h"
+#include "df_v3_6.h"
+
+#define PMU_NAME_SIZE 32
+
+/* record to keep track of pmu entry per pmu type per device */
+struct amdgpu_pmu_entry {
+	struct list_head entry;
+	struct amdgpu_device *adev;
+	struct pmu pmu;
+	unsigned int pmu_perf_type;
+};
+
+static LIST_HEAD(amdgpu_pmu_list);
+
+
+/* initialize perf counter */
+static int amdgpu_perf_event_init(struct perf_event *event)
+{
+	struct hw_perf_event *hwc = &event->hw;
+
+	/* test the event attr type check for PMU enumeration */
+	if (event->attr.type != event->pmu->type)
+		return -ENOENT;
+
+	/* update the hw_perf_event struct with config data */
+	hwc->conf = event->attr.config;
+
+	return 0;
+}
+
+/* start perf counter */
+static void amdgpu_perf_start(struct perf_event *event, int flags)
+{
+	struct hw_perf_event *hwc = &event->hw;
+	struct amdgpu_pmu_entry *pe = container_of(event->pmu,
+						  struct amdgpu_pmu_entry,
+						  pmu);
+
+	if (WARN_ON_ONCE(!(hwc->state & PERF_HES_STOPPED)))
+		return;
+
+	WARN_ON_ONCE(!(hwc->state & PERF_HES_UPTODATE));
+	hwc->state = 0;
+
+	switch (pe->pmu_perf_type) {
+	case PERF_TYPE_AMDGPU_DF:
+		if (!(flags & PERF_EF_RELOAD))
+			pe->adev->df_funcs->pmc_start(pe->adev, hwc->conf, 1);
+
+		pe->adev->df_funcs->pmc_start(pe->adev, hwc->conf, 0);
+		break;
+	default:
+		break;
+	}
+
+	perf_event_update_userpage(event);
+
+}
+
+/* read perf counter */
+static void amdgpu_perf_read(struct perf_event *event)
+{
+	struct hw_perf_event *hwc = &event->hw;
+	struct amdgpu_pmu_entry *pe = container_of(event->pmu,
+						  struct amdgpu_pmu_entry,
+						  pmu);
+
+	u64 count, prev;
+
+	do {
+		prev = local64_read(&hwc->prev_count);
+
+		switch (pe->pmu_perf_type) {
+		case PERF_TYPE_AMDGPU_DF:
+			pe->adev->df_funcs->pmc_get_count(pe->adev, hwc->conf,
+							  &count);
+			break;
+		default:
+			count = 0;
+			break;
+		};
+	} while (local64_cmpxchg(&hwc->prev_count, prev, count) != prev);
+
+	local64_add(count - prev, &event->count);
+}
+
+/* stop perf counter */
+static void amdgpu_perf_stop(struct perf_event *event, int flags)
+{
+	struct hw_perf_event *hwc = &event->hw;
+	struct amdgpu_pmu_entry *pe = container_of(event->pmu,
+						  struct amdgpu_pmu_entry,
+						  pmu);
+
+	if (hwc->state & PERF_HES_UPTODATE)
+		return;
+
+	switch (pe->pmu_perf_type) {
+	case PERF_TYPE_AMDGPU_DF:
+		pe->adev->df_funcs->pmc_stop(pe->adev, hwc->conf, 0);
+		break;
+	default:
+		break;
+	};
+
+	WARN_ON_ONCE(hwc->state & PERF_HES_STOPPED);
+	hwc->state |= PERF_HES_STOPPED;
+
+	if (hwc->state & PERF_HES_UPTODATE)
+		return;
+
+	amdgpu_perf_read(event);
+	hwc->state |= PERF_HES_UPTODATE;
+}
+
+/* add perf counter  */
+static int amdgpu_perf_add(struct perf_event *event, int flags)
+{
+	struct hw_perf_event *hwc = &event->hw;
+	int retval;
+
+	struct amdgpu_pmu_entry *pe = container_of(event->pmu,
+						  struct amdgpu_pmu_entry,
+						  pmu);
+
+	event->hw.state = PERF_HES_UPTODATE | PERF_HES_STOPPED;
+
+	switch (pe->pmu_perf_type) {
+	case PERF_TYPE_AMDGPU_DF:
+		retval = pe->adev->df_funcs->pmc_start(pe->adev, hwc->conf, 1);
+		break;
+	default:
+		return 0;
+	};
+
+	if (retval)
+		return retval;
+
+	if (flags & PERF_EF_START)
+		amdgpu_perf_start(event, PERF_EF_RELOAD);
+
+	return retval;
+
+}
+
+/* delete perf counter  */
+static void amdgpu_perf_del(struct perf_event *event, int flags)
+{
+	struct hw_perf_event *hwc = &event->hw;
+	struct amdgpu_pmu_entry *pe = container_of(event->pmu,
+						  struct amdgpu_pmu_entry,
+						  pmu);
+
+	amdgpu_perf_stop(event, PERF_EF_UPDATE);
+
+	switch (pe->pmu_perf_type) {
+	case PERF_TYPE_AMDGPU_DF:
+		pe->adev->df_funcs->pmc_stop(pe->adev, hwc->conf, 1);
+		break;
+	default:
+		break;
+	};
+
+	perf_event_update_userpage(event);
+}
+
+/* vega20 pmus */
+
+/* init pmu tracking per pmu type */
+static int init_pmu_by_type(struct amdgpu_device *adev,
+		  const struct attribute_group *attr_groups[],
+		  char *pmu_type_name, char *pmu_file_prefix,
+		  unsigned int pmu_perf_type,
+		  unsigned int num_counters)
+{
+	char pmu_name[PMU_NAME_SIZE];
+	struct amdgpu_pmu_entry *pmu_entry;
+	int ret = 0;
+
+	pmu_entry = kzalloc(sizeof(struct amdgpu_pmu_entry), GFP_KERNEL);
+
+	if (!pmu_entry)
+		return -ENOMEM;
+
+	pmu_entry->adev = adev;
+	pmu_entry->pmu = (struct pmu){
+		.event_init = amdgpu_perf_event_init,
+		.add = amdgpu_perf_add,
+		.del = amdgpu_perf_del,
+		.start = amdgpu_perf_start,
+		.stop = amdgpu_perf_stop,
+		.read = amdgpu_perf_read,
+		.task_ctx_nr = perf_invalid_context,
+	};
+
+	pmu_entry->pmu.attr_groups = attr_groups;
+	pmu_entry->pmu_perf_type = pmu_perf_type;
+	snprintf(pmu_name, PMU_NAME_SIZE, "%s_%d",
+				pmu_file_prefix, adev->ddev->primary->index);
+
+	ret = perf_pmu_register(&pmu_entry->pmu, pmu_name, -1);
+
+	if (ret) {
+		kfree(pmu_entry);
+		pr_warn("Error initializing AMDGPU %s PMUs.\n", pmu_type_name);
+		return ret;
+	}
+
+	pr_info("Detected AMDGPU %s Counters. # of Counters = %d.\n",
+			pmu_type_name, num_counters);
+
+	list_add_tail(&pmu_entry->entry, &amdgpu_pmu_list);
+
+	return 0;
+}
+
+/* init amdgpu_pmu */
+int amdgpu_pmu_init(struct amdgpu_device *adev)
+{
+	int ret = 0;
+
+	switch (adev->asic_type) {
+	case CHIP_VEGA20:
+		/* init df */
+		ret = init_pmu_by_type(adev, df_v3_6_attr_groups,
+				       "DF", "amdgpu_df", PERF_TYPE_AMDGPU_DF,
+				       DF_V3_6_MAX_COUNTERS);
+
+		/* other pmu types go here*/
+		break;
+	default:
+		return 0;
+	}
+
+	return 0;
+}
+
+
+/* destroy all pmu data associated with target device */
+void amdgpu_pmu_fini(struct amdgpu_device *adev)
+{
+	struct amdgpu_pmu_entry *pe, *temp;
+
+	list_for_each_entry_safe(pe, temp, &amdgpu_pmu_list, entry) {
+		if (pe->adev == adev) {
+			list_del(&pe->entry);
+			perf_pmu_unregister(&pe->pmu);
+			kfree(pe);
+		}
+	}
+}