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authorLinus Torvalds <torvalds@linux-foundation.org>2020-10-15 20:46:16 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-10-15 20:46:16 +0300
commit93b694d096cc10994c817730d4d50288f9ae3d66 (patch)
tree5bd967686d0003f7dbbe1da49f5399cb4a92f074 /drivers/gpu/drm/amd/pm/powerplay/hwmgr/pp_psm.c
parent726eb70e0d34dc4bc4dada71f52bba8ed638431e (diff)
parent640eee067d9aae0bb98d8706001976ff1affaf00 (diff)
downloadlinux-93b694d096cc10994c817730d4d50288f9ae3d66.tar.xz
Merge tag 'drm-next-2020-10-15' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie: "Not a major amount of change, the i915 trees got split into display and gt trees to better facilitate higher level review, and there's a major refactoring of i915 GEM locking to use more core kernel concepts (like ww-mutexes). msm gets per-process pagetables, older AMD SI cards get DC support, nouveau got a bump in displayport support with common code extraction from i915. Outside of drm this contains a couple of patches for hexint moduleparams which you've acked, and a virtio common code tree that you should also get via it's regular path. New driver: - Cadence MHDP8546 DisplayPort bridge driver core: - cross-driver scatterlist cleanups - devm_drm conversions - remove drm_dev_init - devm_drm_dev_alloc conversion ttm: - lots of refactoring and cleanups bridges: - chained bridge support in more drivers panel: - misc new panels scheduler: - cleanup priority levels displayport: - refactor i915 code into helpers for nouveau i915: - split into display and GT trees - WW locking refactoring in GEM - execbuf2 extension mechanism - syncobj timeline support - GEN 12 HOBL display powersaving - Rocket Lake display additions - Disable FBC on Tigerlake - Tigerlake Type-C + DP improvements - Hotplug interrupt refactoring amdgpu: - Sienna Cichlid updates - Navy Flounder updates - DCE6 (SI) support for DC - Plane rotation enabled - TMZ state info ioctl - PCIe DPC recovery support - DC interrupt handling refactor - OLED panel fixes amdkfd: - add SMI events for thermal throttling - SMI interface events ioctl update - process eviction counters radeon: - move to dma_ for allocations - expose sclk via sysfs msm: - DSI support for sm8150/sm8250 - per-process GPU pagetable support - Displayport support mediatek: - move HDMI phy driver to PHY - convert mtk-dpi to bridge API - disable mt2701 tmds tegra: - bridge support exynos: - misc cleanups vc4: - dual display cleanups ast: - cleanups gma500: - conversion to GPIOd API hisilicon: - misc reworks ingenic: - clock handling and format improvements mcde: - DSI support mgag200: - desktop g200 support mxsfb: - i.MX7 + i.MX8M - alpha plane support panfrost: - devfreq support - amlogic SoC support ps8640: - EDID from eDP retrieval tidss: - AM65xx YUV workaround virtio: - virtio-gpu exported resources rcar-du: - R8A7742, R8A774E1 and R8A77961 support - YUV planar format fixes - non-visible plane handling - VSP device reference count fix - Kconfig fix to avoid displaying disabled options in .config" * tag 'drm-next-2020-10-15' of git://anongit.freedesktop.org/drm/drm: (1494 commits) drm/ingenic: Fix bad revert drm/amdgpu: Fix invalid number of character '{' in amdgpu_acpi_init drm/amdgpu: Remove warning for virtual_display drm/amdgpu: kfd_initialized can be static drm/amd/pm: setup APU dpm clock table in SMU HW initialization drm/amdgpu: prevent spurious warning drm/amdgpu/swsmu: fix ARC build errors drm/amd/display: Fix OPTC_DATA_FORMAT programming drm/amd/display: Don't allow pstate if no support in blank drm/panfrost: increase readl_relaxed_poll_timeout values MAINTAINERS: Update entry for st7703 driver after the rename Revert "gpu/drm: ingenic: Add option to mmap GEM buffers cached" drm/amd/display: HDMI remote sink need mode validation for Linux drm/amd/display: Change to correct unit on audio rate drm/amd/display: Avoid set zero in the requested clk drm/amdgpu: align frag_end to covered address space drm/amdgpu: fix NULL pointer dereference for Renoir drm/vmwgfx: fix regression in thp code due to ttm init refactor. drm/amdgpu/swsmu: add interrupt work handler for smu11 parts drm/amdgpu/swsmu: add interrupt work function ...
Diffstat (limited to 'drivers/gpu/drm/amd/pm/powerplay/hwmgr/pp_psm.c')
-rw-r--r--drivers/gpu/drm/amd/pm/powerplay/hwmgr/pp_psm.c296
1 files changed, 296 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pp_psm.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pp_psm.c
new file mode 100644
index 000000000000..31a32a79cfc2
--- /dev/null
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pp_psm.c
@@ -0,0 +1,296 @@
+/*
+ * Copyright 2017 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/types.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include "pp_psm.h"
+
+int psm_init_power_state_table(struct pp_hwmgr *hwmgr)
+{
+ int result;
+ unsigned int i;
+ unsigned int table_entries;
+ struct pp_power_state *state;
+ int size;
+
+ if (hwmgr->hwmgr_func->get_num_of_pp_table_entries == NULL)
+ return 0;
+
+ if (hwmgr->hwmgr_func->get_power_state_size == NULL)
+ return 0;
+
+ hwmgr->num_ps = table_entries = hwmgr->hwmgr_func->get_num_of_pp_table_entries(hwmgr);
+
+ hwmgr->ps_size = size = hwmgr->hwmgr_func->get_power_state_size(hwmgr) +
+ sizeof(struct pp_power_state);
+
+ if (table_entries == 0 || size == 0) {
+ pr_warn("Please check whether power state management is supported on this asic\n");
+ return 0;
+ }
+
+ hwmgr->ps = kcalloc(table_entries, size, GFP_KERNEL);
+ if (hwmgr->ps == NULL)
+ return -ENOMEM;
+
+ hwmgr->request_ps = kzalloc(size, GFP_KERNEL);
+ if (hwmgr->request_ps == NULL) {
+ kfree(hwmgr->ps);
+ hwmgr->ps = NULL;
+ return -ENOMEM;
+ }
+
+ hwmgr->current_ps = kzalloc(size, GFP_KERNEL);
+ if (hwmgr->current_ps == NULL) {
+ kfree(hwmgr->request_ps);
+ kfree(hwmgr->ps);
+ hwmgr->request_ps = NULL;
+ hwmgr->ps = NULL;
+ return -ENOMEM;
+ }
+
+ state = hwmgr->ps;
+
+ for (i = 0; i < table_entries; i++) {
+ result = hwmgr->hwmgr_func->get_pp_table_entry(hwmgr, i, state);
+
+ if (state->classification.flags & PP_StateClassificationFlag_Boot) {
+ hwmgr->boot_ps = state;
+ memcpy(hwmgr->current_ps, state, size);
+ memcpy(hwmgr->request_ps, state, size);
+ }
+
+ state->id = i + 1; /* assigned unique num for every power state id */
+
+ if (state->classification.flags & PP_StateClassificationFlag_Uvd)
+ hwmgr->uvd_ps = state;
+ state = (struct pp_power_state *)((unsigned long)state + size);
+ }
+
+ return 0;
+}
+
+int psm_fini_power_state_table(struct pp_hwmgr *hwmgr)
+{
+ if (hwmgr == NULL)
+ return -EINVAL;
+
+ if (!hwmgr->ps)
+ return 0;
+
+ kfree(hwmgr->current_ps);
+ kfree(hwmgr->request_ps);
+ kfree(hwmgr->ps);
+ hwmgr->request_ps = NULL;
+ hwmgr->ps = NULL;
+ hwmgr->current_ps = NULL;
+ return 0;
+}
+
+static int psm_get_ui_state(struct pp_hwmgr *hwmgr,
+ enum PP_StateUILabel ui_label,
+ unsigned long *state_id)
+{
+ struct pp_power_state *state;
+ int table_entries;
+ int i;
+
+ table_entries = hwmgr->num_ps;
+ state = hwmgr->ps;
+
+ for (i = 0; i < table_entries; i++) {
+ if (state->classification.ui_label & ui_label) {
+ *state_id = state->id;
+ return 0;
+ }
+ state = (struct pp_power_state *)((unsigned long)state + hwmgr->ps_size);
+ }
+ return -EINVAL;
+}
+
+static int psm_get_state_by_classification(struct pp_hwmgr *hwmgr,
+ enum PP_StateClassificationFlag flag,
+ unsigned long *state_id)
+{
+ struct pp_power_state *state;
+ int table_entries;
+ int i;
+
+ table_entries = hwmgr->num_ps;
+ state = hwmgr->ps;
+
+ for (i = 0; i < table_entries; i++) {
+ if (state->classification.flags & flag) {
+ *state_id = state->id;
+ return 0;
+ }
+ state = (struct pp_power_state *)((unsigned long)state + hwmgr->ps_size);
+ }
+ return -EINVAL;
+}
+
+static int psm_set_states(struct pp_hwmgr *hwmgr, unsigned long state_id)
+{
+ struct pp_power_state *state;
+ int table_entries;
+ int i;
+
+ table_entries = hwmgr->num_ps;
+
+ state = hwmgr->ps;
+
+ for (i = 0; i < table_entries; i++) {
+ if (state->id == state_id) {
+ memcpy(hwmgr->request_ps, state, hwmgr->ps_size);
+ return 0;
+ }
+ state = (struct pp_power_state *)((unsigned long)state + hwmgr->ps_size);
+ }
+ return -EINVAL;
+}
+
+int psm_set_boot_states(struct pp_hwmgr *hwmgr)
+{
+ unsigned long state_id;
+ int ret = -EINVAL;
+
+ if (!hwmgr->ps)
+ return 0;
+
+ if (!psm_get_state_by_classification(hwmgr, PP_StateClassificationFlag_Boot,
+ &state_id))
+ ret = psm_set_states(hwmgr, state_id);
+
+ return ret;
+}
+
+int psm_set_performance_states(struct pp_hwmgr *hwmgr)
+{
+ unsigned long state_id;
+ int ret = -EINVAL;
+
+ if (!hwmgr->ps)
+ return 0;
+
+ if (!psm_get_ui_state(hwmgr, PP_StateUILabel_Performance,
+ &state_id))
+ ret = psm_set_states(hwmgr, state_id);
+
+ return ret;
+}
+
+int psm_set_user_performance_state(struct pp_hwmgr *hwmgr,
+ enum PP_StateUILabel label_id,
+ struct pp_power_state **state)
+{
+ int table_entries;
+ int i;
+
+ if (!hwmgr->ps)
+ return 0;
+
+ table_entries = hwmgr->num_ps;
+ *state = hwmgr->ps;
+
+restart_search:
+ for (i = 0; i < table_entries; i++) {
+ if ((*state)->classification.ui_label & label_id)
+ return 0;
+ *state = (struct pp_power_state *)((uintptr_t)*state + hwmgr->ps_size);
+ }
+
+ switch (label_id) {
+ case PP_StateUILabel_Battery:
+ case PP_StateUILabel_Balanced:
+ label_id = PP_StateUILabel_Performance;
+ goto restart_search;
+ default:
+ break;
+ }
+ return -EINVAL;
+}
+
+static void power_state_management(struct pp_hwmgr *hwmgr,
+ struct pp_power_state *new_ps)
+{
+ struct pp_power_state *pcurrent;
+ struct pp_power_state *requested;
+ bool equal;
+
+ if (new_ps != NULL)
+ requested = new_ps;
+ else
+ requested = hwmgr->request_ps;
+
+ pcurrent = hwmgr->current_ps;
+
+ phm_apply_state_adjust_rules(hwmgr, requested, pcurrent);
+ if (pcurrent == NULL || (0 != phm_check_states_equal(hwmgr,
+ &pcurrent->hardware, &requested->hardware, &equal)))
+ equal = false;
+
+ if (!equal || phm_check_smc_update_required_for_display_configuration(hwmgr)) {
+ phm_set_power_state(hwmgr, &pcurrent->hardware, &requested->hardware);
+ memcpy(hwmgr->current_ps, hwmgr->request_ps, hwmgr->ps_size);
+ }
+}
+
+int psm_adjust_power_state_dynamic(struct pp_hwmgr *hwmgr, bool skip_display_settings,
+ struct pp_power_state *new_ps)
+{
+ uint32_t index;
+ long workload;
+
+ if (hwmgr->not_vf) {
+ if (!skip_display_settings)
+ phm_display_configuration_changed(hwmgr);
+
+ if (hwmgr->ps)
+ power_state_management(hwmgr, new_ps);
+ else
+ /*
+ * for vega12/vega20 which does not support power state manager
+ * DAL clock limits should also be honoured
+ */
+ phm_apply_clock_adjust_rules(hwmgr);
+
+ if (!skip_display_settings)
+ phm_notify_smc_display_config_after_ps_adjustment(hwmgr);
+ }
+
+ if (!phm_force_dpm_levels(hwmgr, hwmgr->request_dpm_level))
+ hwmgr->dpm_level = hwmgr->request_dpm_level;
+
+ if (hwmgr->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL) {
+ index = fls(hwmgr->workload_mask);
+ index = index > 0 && index <= Workload_Policy_Max ? index - 1 : 0;
+ workload = hwmgr->workload_setting[index];
+
+ if (hwmgr->power_profile_mode != workload && hwmgr->hwmgr_func->set_power_profile_mode)
+ hwmgr->hwmgr_func->set_power_profile_mode(hwmgr, &workload, 0);
+ }
+
+ return 0;
+}
+