mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-06 02:16:39 +07:00
731c7d3a20
Merge drm updates from Dave Airlie: "This is the main drm pull request for 4.8. I'm down with a cold at the moment so hopefully this isn't in too bad a state, I finished pulling stuff last week mostly (nouveau fixes just went in today), so only this message should be influenced by illness. Apologies to anyone who's major feature I missed :-) Core: Lockless GEM BO freeing Non-blocking atomic work Documentation changes (rst/sphinx) Prep for new fencing changes Simple display helpers Master/auth changes Register/unregister rework Loads of trivial patches/fixes. New stuff: ARM Mali display driver (not the 3D chip) sii902x RGB->HDMI bridge Panel: Support for new panels Improved backlight support Bridge: Convert ADV7511 to bridge driver ADV7533 support TC358767 (DSI/DPI to eDP) encoder chip support i915: BXT support enabled by default GVT-g infrastructure GuC command submission and fixes BXT workarounds SKL/BKL workarounds Demidlayering device registration Thundering herd fixes Missing pci ids Atomic updates amdgpu/radeon: ATPX improvements for better dGPU power control on PX systems New power features for CZ/BR/ST Pipelined BO moves and evictions in TTM GPU scheduler improvements GPU reset improvements Overclocking on dGPUs with amdgpu Polaris powermanagement enabled nouveau: GK20A/GM20B volt and clock improvements. Initial support for GP100/GP104 GPUs, GP104 will not yet support acceleration due to NVIDIA having not released firmware for them as of yet. exynos: Exynos5433 SoC with IOMMU support. vc4: Shader validation for branching imx-drm: Atomic mode setting conversion Reworked DMFC FIFO allocation External bridge support analogix-dp: RK3399 eDP support Lots of fixes. rockchip: Lots of small fixes. msm: DT bindings cleanups Shrinker and madvise support ASoC HDMI codec support tegra: Host1x driver cleanups SOR reworking for DP support Runtime PM support omapdrm: PLL enhancements Header refactoring Gamma table support arcgpu: Simulator support virtio-gpu: Atomic modesetting fixes. rcar-du: Misc fixes. mediatek: MT8173 HDMI support sti: ASOC HDMI codec support Minor fixes fsl-dcu: Suspend/resume support Bridge support amdkfd: Minor fixes. etnaviv: Enable GPU clock gating hisilicon: Vblank and other fixes" * tag 'drm-for-v4.8' of git://people.freedesktop.org/~airlied/linux: (1575 commits) drm/nouveau/gr/nv3x: fix instobj write offsets in gr setup drm/nouveau/acpi: fix lockup with PCIe runtime PM drm/nouveau/acpi: check for function 0x1B before using it drm/nouveau/acpi: return supported DSM functions drm/nouveau/acpi: ensure matching ACPI handle and supported functions drm/nouveau/fbcon: fix font width not divisible by 8 drm/amd/powerplay: remove enable_clock_power_gatings_tasks from initialize and resume events drm/amd/powerplay: move clockgating to after ungating power in pp for uvd/vce drm/amdgpu: add query device id and revision id into system info entry at CGS drm/amdgpu: add new definition in bif header drm/amd/powerplay: rename smum header guards drm/amdgpu: enable UVD context buffer for older HW drm/amdgpu: fix default UVD context size drm/amdgpu: fix incorrect type of info_id drm/amdgpu: make amdgpu_cgs_call_acpi_method as static drm/amdgpu: comment out unused defaults_staturn_pro static const structure to fix the build drm/amdgpu: enable UVD VM only on polaris drm/amdgpu: increase timeout of IB test drm/amdgpu: add destroy session when generate VCE destroy msg. drm/amd: fix deadlock of job_list_lock V2 ...
401 lines
9.3 KiB
C
401 lines
9.3 KiB
C
/**************************************************************************
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*
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* Copyright (c) 2006-2009 VMware, Inc., Palo Alto, CA., USA
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/*
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* Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
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*/
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#define pr_fmt(fmt) "[TTM] " fmt
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#include <linux/sched.h>
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#include <linux/highmem.h>
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#include <linux/pagemap.h>
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#include <linux/shmem_fs.h>
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#include <linux/file.h>
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#include <linux/swap.h>
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#include <linux/slab.h>
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#include <linux/export.h>
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#include <drm/drm_cache.h>
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#include <drm/drm_mem_util.h>
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#include <drm/ttm/ttm_module.h>
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#include <drm/ttm/ttm_bo_driver.h>
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#include <drm/ttm/ttm_placement.h>
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#include <drm/ttm/ttm_page_alloc.h>
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/**
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* Allocates storage for pointers to the pages that back the ttm.
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*/
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static void ttm_tt_alloc_page_directory(struct ttm_tt *ttm)
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{
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ttm->pages = drm_calloc_large(ttm->num_pages, sizeof(void*));
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}
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static void ttm_dma_tt_alloc_page_directory(struct ttm_dma_tt *ttm)
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{
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ttm->ttm.pages = drm_calloc_large(ttm->ttm.num_pages,
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sizeof(*ttm->ttm.pages) +
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sizeof(*ttm->dma_address) +
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sizeof(*ttm->cpu_address));
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ttm->cpu_address = (void *) (ttm->ttm.pages + ttm->ttm.num_pages);
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ttm->dma_address = (void *) (ttm->cpu_address + ttm->ttm.num_pages);
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}
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#ifdef CONFIG_X86
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static inline int ttm_tt_set_page_caching(struct page *p,
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enum ttm_caching_state c_old,
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enum ttm_caching_state c_new)
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{
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int ret = 0;
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if (PageHighMem(p))
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return 0;
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if (c_old != tt_cached) {
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/* p isn't in the default caching state, set it to
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* writeback first to free its current memtype. */
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ret = set_pages_wb(p, 1);
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if (ret)
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return ret;
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}
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if (c_new == tt_wc)
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ret = set_memory_wc((unsigned long) page_address(p), 1);
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else if (c_new == tt_uncached)
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ret = set_pages_uc(p, 1);
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return ret;
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}
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#else /* CONFIG_X86 */
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static inline int ttm_tt_set_page_caching(struct page *p,
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enum ttm_caching_state c_old,
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enum ttm_caching_state c_new)
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{
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return 0;
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}
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#endif /* CONFIG_X86 */
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/*
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* Change caching policy for the linear kernel map
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* for range of pages in a ttm.
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*/
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static int ttm_tt_set_caching(struct ttm_tt *ttm,
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enum ttm_caching_state c_state)
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{
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int i, j;
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struct page *cur_page;
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int ret;
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if (ttm->caching_state == c_state)
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return 0;
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if (ttm->state == tt_unpopulated) {
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/* Change caching but don't populate */
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ttm->caching_state = c_state;
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return 0;
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}
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if (ttm->caching_state == tt_cached)
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drm_clflush_pages(ttm->pages, ttm->num_pages);
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for (i = 0; i < ttm->num_pages; ++i) {
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cur_page = ttm->pages[i];
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if (likely(cur_page != NULL)) {
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ret = ttm_tt_set_page_caching(cur_page,
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ttm->caching_state,
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c_state);
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if (unlikely(ret != 0))
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goto out_err;
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}
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}
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ttm->caching_state = c_state;
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return 0;
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out_err:
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for (j = 0; j < i; ++j) {
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cur_page = ttm->pages[j];
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if (likely(cur_page != NULL)) {
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(void)ttm_tt_set_page_caching(cur_page, c_state,
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ttm->caching_state);
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}
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}
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return ret;
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}
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int ttm_tt_set_placement_caching(struct ttm_tt *ttm, uint32_t placement)
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{
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enum ttm_caching_state state;
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if (placement & TTM_PL_FLAG_WC)
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state = tt_wc;
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else if (placement & TTM_PL_FLAG_UNCACHED)
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state = tt_uncached;
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else
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state = tt_cached;
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return ttm_tt_set_caching(ttm, state);
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}
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EXPORT_SYMBOL(ttm_tt_set_placement_caching);
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void ttm_tt_destroy(struct ttm_tt *ttm)
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{
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if (ttm == NULL)
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return;
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ttm_tt_unbind(ttm);
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if (ttm->state == tt_unbound)
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ttm_tt_unpopulate(ttm);
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if (!(ttm->page_flags & TTM_PAGE_FLAG_PERSISTENT_SWAP) &&
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ttm->swap_storage)
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fput(ttm->swap_storage);
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ttm->swap_storage = NULL;
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ttm->func->destroy(ttm);
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}
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int ttm_tt_init(struct ttm_tt *ttm, struct ttm_bo_device *bdev,
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unsigned long size, uint32_t page_flags,
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struct page *dummy_read_page)
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{
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ttm->bdev = bdev;
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ttm->glob = bdev->glob;
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ttm->num_pages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
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ttm->caching_state = tt_cached;
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ttm->page_flags = page_flags;
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ttm->dummy_read_page = dummy_read_page;
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ttm->state = tt_unpopulated;
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ttm->swap_storage = NULL;
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ttm_tt_alloc_page_directory(ttm);
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if (!ttm->pages) {
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ttm_tt_destroy(ttm);
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pr_err("Failed allocating page table\n");
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return -ENOMEM;
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}
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return 0;
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}
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EXPORT_SYMBOL(ttm_tt_init);
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void ttm_tt_fini(struct ttm_tt *ttm)
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{
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drm_free_large(ttm->pages);
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ttm->pages = NULL;
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}
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EXPORT_SYMBOL(ttm_tt_fini);
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int ttm_dma_tt_init(struct ttm_dma_tt *ttm_dma, struct ttm_bo_device *bdev,
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unsigned long size, uint32_t page_flags,
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struct page *dummy_read_page)
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{
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struct ttm_tt *ttm = &ttm_dma->ttm;
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ttm->bdev = bdev;
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ttm->glob = bdev->glob;
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ttm->num_pages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
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ttm->caching_state = tt_cached;
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ttm->page_flags = page_flags;
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ttm->dummy_read_page = dummy_read_page;
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ttm->state = tt_unpopulated;
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ttm->swap_storage = NULL;
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INIT_LIST_HEAD(&ttm_dma->pages_list);
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ttm_dma_tt_alloc_page_directory(ttm_dma);
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if (!ttm->pages) {
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ttm_tt_destroy(ttm);
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pr_err("Failed allocating page table\n");
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return -ENOMEM;
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}
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return 0;
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}
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EXPORT_SYMBOL(ttm_dma_tt_init);
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void ttm_dma_tt_fini(struct ttm_dma_tt *ttm_dma)
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{
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struct ttm_tt *ttm = &ttm_dma->ttm;
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drm_free_large(ttm->pages);
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ttm->pages = NULL;
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ttm_dma->cpu_address = NULL;
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ttm_dma->dma_address = NULL;
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}
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EXPORT_SYMBOL(ttm_dma_tt_fini);
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void ttm_tt_unbind(struct ttm_tt *ttm)
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{
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int ret;
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if (ttm->state == tt_bound) {
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ret = ttm->func->unbind(ttm);
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BUG_ON(ret);
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ttm->state = tt_unbound;
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}
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}
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int ttm_tt_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem)
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{
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int ret = 0;
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if (!ttm)
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return -EINVAL;
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if (ttm->state == tt_bound)
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return 0;
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ret = ttm->bdev->driver->ttm_tt_populate(ttm);
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if (ret)
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return ret;
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ret = ttm->func->bind(ttm, bo_mem);
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if (unlikely(ret != 0))
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return ret;
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ttm->state = tt_bound;
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return 0;
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}
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EXPORT_SYMBOL(ttm_tt_bind);
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int ttm_tt_swapin(struct ttm_tt *ttm)
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{
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struct address_space *swap_space;
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struct file *swap_storage;
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struct page *from_page;
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struct page *to_page;
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int i;
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int ret = -ENOMEM;
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swap_storage = ttm->swap_storage;
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BUG_ON(swap_storage == NULL);
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swap_space = swap_storage->f_mapping;
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for (i = 0; i < ttm->num_pages; ++i) {
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from_page = shmem_read_mapping_page(swap_space, i);
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if (IS_ERR(from_page)) {
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ret = PTR_ERR(from_page);
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goto out_err;
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}
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to_page = ttm->pages[i];
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if (unlikely(to_page == NULL))
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goto out_err;
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copy_highpage(to_page, from_page);
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put_page(from_page);
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}
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if (!(ttm->page_flags & TTM_PAGE_FLAG_PERSISTENT_SWAP))
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fput(swap_storage);
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ttm->swap_storage = NULL;
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ttm->page_flags &= ~TTM_PAGE_FLAG_SWAPPED;
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return 0;
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out_err:
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return ret;
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}
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int ttm_tt_swapout(struct ttm_tt *ttm, struct file *persistent_swap_storage)
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{
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struct address_space *swap_space;
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struct file *swap_storage;
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struct page *from_page;
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struct page *to_page;
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int i;
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int ret = -ENOMEM;
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BUG_ON(ttm->state != tt_unbound && ttm->state != tt_unpopulated);
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BUG_ON(ttm->caching_state != tt_cached);
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if (!persistent_swap_storage) {
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swap_storage = shmem_file_setup("ttm swap",
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ttm->num_pages << PAGE_SHIFT,
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0);
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if (IS_ERR(swap_storage)) {
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pr_err("Failed allocating swap storage\n");
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return PTR_ERR(swap_storage);
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}
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} else
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swap_storage = persistent_swap_storage;
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swap_space = swap_storage->f_mapping;
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for (i = 0; i < ttm->num_pages; ++i) {
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from_page = ttm->pages[i];
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if (unlikely(from_page == NULL))
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continue;
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to_page = shmem_read_mapping_page(swap_space, i);
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if (IS_ERR(to_page)) {
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ret = PTR_ERR(to_page);
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goto out_err;
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}
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copy_highpage(to_page, from_page);
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set_page_dirty(to_page);
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mark_page_accessed(to_page);
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put_page(to_page);
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}
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ttm_tt_unpopulate(ttm);
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ttm->swap_storage = swap_storage;
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ttm->page_flags |= TTM_PAGE_FLAG_SWAPPED;
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if (persistent_swap_storage)
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ttm->page_flags |= TTM_PAGE_FLAG_PERSISTENT_SWAP;
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return 0;
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out_err:
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if (!persistent_swap_storage)
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fput(swap_storage);
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return ret;
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}
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static void ttm_tt_clear_mapping(struct ttm_tt *ttm)
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{
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pgoff_t i;
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struct page **page = ttm->pages;
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if (ttm->page_flags & TTM_PAGE_FLAG_SG)
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return;
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for (i = 0; i < ttm->num_pages; ++i) {
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(*page)->mapping = NULL;
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(*page++)->index = 0;
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}
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}
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void ttm_tt_unpopulate(struct ttm_tt *ttm)
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{
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if (ttm->state == tt_unpopulated)
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return;
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ttm_tt_clear_mapping(ttm);
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ttm->bdev->driver->ttm_tt_unpopulate(ttm);
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}
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