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authorLinus Torvalds <torvalds@linux-foundation.org>2018-10-28 17:49:53 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-10-28 17:49:53 -0700
commit53b3b6bbfde6aae8d1ededc86ad4e0e1e00eb5f8 (patch)
treeb29473f21270aefd113b298c9402be8b4b3c91b4 /drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
parentMerge tag 'vla-v4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ke... (diff)
parentMerge tag 'drm-intel-next-fixes-2018-10-18' of git://anongit.freedesktop.org/... (diff)
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Merge tag 'drm-next-2018-10-24' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie: "This is going to rebuild more than drm as it adds a new helper to list.h for doing bulk updates. Seemed like a reasonable addition to me. Otherwise the usual merge window stuff lots of i915 and amdgpu, not so much nouveau, and piles of everything else. Core: - Adds a new list.h helper for doing bulk list updates for TTM. - Don't leak fb address in smem_start to userspace (comes with EXPORT workaround for people using mali out of tree hacks) - udmabuf device to turn memfd regions into dma-buf - Per-plane blend mode property - ref/unref replacements with get/put - fbdev conflicting framebuffers code cleaned up - host-endian format variants - panel orientation quirk for Acer One 10 bridge: - TI SN65DSI86 chip support vkms: - GEM support. - Cursor support amdgpu: - Merge amdkfd and amdgpu into one module - CEC over DP AUX support - Picasso APU support + VCN dynamic powergating - Raven2 APU support - Vega20 enablement + kfd support - ACP powergating improvements - ABGR/XBGR display support - VCN jpeg support - xGMI support - DC i2c/aux cleanup - Ycbcr 4:2:0 support - GPUVM improvements - Powerplay and powerplay endian fixes - Display underflow fixes vmwgfx: - Move vmwgfx specific TTM code to vmwgfx - Split out vmwgfx buffer/resource validation code - Atomic operation rework bochs: - use more helpers - format/byteorder improvements qxl: - use more helpers i915: - GGTT coherency getparam - Turn off resource streamer API - More Icelake enablement + DMC firmware - Full PPGTT for Ivybridge, Haswell and Valleyview - DDB distribution based on resolution - Limited range DP display support nouveau: - CEC over DP AUX support - Initial HDMI 2.0 support virtio-gpu: - vmap support for PRIME objects tegra: - Initial Tegra194 support - DMA/IOMMU integration fixes msm: - a6xx perf improvements + clock prefix - GPU preemption optimisations - a6xx devfreq support - cursor support rockchip: - PX30 support - rgb output interface support mediatek: - HDMI output support on mt2701 and mt7623 rcar-du: - Interlaced modes on Gen3 - LVDS on R8A77980 - D3 and E3 SoC support hisilicon: - misc fixes mxsfb: - runtime pm support sun4i: - R40 TCON support - Allwinner A64 support - R40 HDMI support omapdrm: - Driver rework changing display pipeline ordering to use common code - DMM memory barrier and irq fixes - Errata workarounds exynos: - out-bridge support for LVDS bridge driver - Samsung 16x16 tiled format support - Plane alpha and pixel blend mode support tilcdc: - suspend/resume update mali-dp: - misc updates" * tag 'drm-next-2018-10-24' of git://anongit.freedesktop.org/drm/drm: (1382 commits) firmware/dmc/icl: Add missing MODULE_FIRMWARE() for Icelake. drm/i915/icl: Fix signal_levels drm/i915/icl: Fix DDI/TC port clk_off bits drm/i915/icl: create function to identify combophy port drm/i915/gen9+: Fix initial readout for Y tiled framebuffers drm/i915: Large page offsets for pread/pwrite drm/i915/selftests: Disable shrinker across mmap-exhaustion drm/i915/dp: Link train Fallback on eDP only if fallback link BW can fit panel's native mode drm/i915: Fix intel_dp_mst_best_encoder() drm/i915: Skip vcpi allocation for MSTB ports that are gone drm/i915: Don't unset intel_connector->mst_port drm/i915: Only reset seqno if actually idle drm/i915: Use the correct crtc when sanitizing plane mapping drm/i915: Restore vblank interrupts earlier drm/i915: Check fb stride against plane max stride drm/amdgpu/vcn:Fix uninitialized symbol error drm: panel-orientation-quirks: Add quirk for Acer One 10 (S1003) drm/amd/amdgpu: Fix debugfs error handling drm/amdgpu: Update gc_9_0 golden settings. drm/amd/powerplay: update PPtable with DC BTC and Tvr SocLimit fields ...
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c215
1 files changed, 215 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
new file mode 100644
index 000000000000..d73367cab4f3
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
@@ -0,0 +1,215 @@
+/*
+ * Copyright 2018 Advanced Micro Devices, Inc.
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ */
+
+#include "amdgpu.h"
+
+/**
+ * amdgpu_gmc_get_pde_for_bo - get the PDE for a BO
+ *
+ * @bo: the BO to get the PDE for
+ * @level: the level in the PD hirarchy
+ * @addr: resulting addr
+ * @flags: resulting flags
+ *
+ * Get the address and flags to be used for a PDE (Page Directory Entry).
+ */
+void amdgpu_gmc_get_pde_for_bo(struct amdgpu_bo *bo, int level,
+ uint64_t *addr, uint64_t *flags)
+{
+ struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
+ struct ttm_dma_tt *ttm;
+
+ switch (bo->tbo.mem.mem_type) {
+ case TTM_PL_TT:
+ ttm = container_of(bo->tbo.ttm, struct ttm_dma_tt, ttm);
+ *addr = ttm->dma_address[0];
+ break;
+ case TTM_PL_VRAM:
+ *addr = amdgpu_bo_gpu_offset(bo);
+ break;
+ default:
+ *addr = 0;
+ break;
+ }
+ *flags = amdgpu_ttm_tt_pde_flags(bo->tbo.ttm, &bo->tbo.mem);
+ amdgpu_gmc_get_vm_pde(adev, level, addr, flags);
+}
+
+/**
+ * amdgpu_gmc_pd_addr - return the address of the root directory
+ *
+ */
+uint64_t amdgpu_gmc_pd_addr(struct amdgpu_bo *bo)
+{
+ struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
+ uint64_t pd_addr;
+
+ /* TODO: move that into ASIC specific code */
+ if (adev->asic_type >= CHIP_VEGA10) {
+ uint64_t flags = AMDGPU_PTE_VALID;
+
+ amdgpu_gmc_get_pde_for_bo(bo, -1, &pd_addr, &flags);
+ pd_addr |= flags;
+ } else {
+ pd_addr = amdgpu_bo_gpu_offset(bo);
+ }
+ return pd_addr;
+}
+
+/**
+ * amdgpu_gmc_agp_addr - return the address in the AGP address space
+ *
+ * @tbo: TTM BO which needs the address, must be in GTT domain
+ *
+ * Tries to figure out how to access the BO through the AGP aperture. Returns
+ * AMDGPU_BO_INVALID_OFFSET if that is not possible.
+ */
+uint64_t amdgpu_gmc_agp_addr(struct ttm_buffer_object *bo)
+{
+ struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev);
+ struct ttm_dma_tt *ttm;
+
+ if (bo->num_pages != 1 || bo->ttm->caching_state == tt_cached)
+ return AMDGPU_BO_INVALID_OFFSET;
+
+ ttm = container_of(bo->ttm, struct ttm_dma_tt, ttm);
+ if (ttm->dma_address[0] + PAGE_SIZE >= adev->gmc.agp_size)
+ return AMDGPU_BO_INVALID_OFFSET;
+
+ return adev->gmc.agp_start + ttm->dma_address[0];
+}
+
+/**
+ * amdgpu_gmc_vram_location - try to find VRAM location
+ *
+ * @adev: amdgpu device structure holding all necessary informations
+ * @mc: memory controller structure holding memory informations
+ * @base: base address at which to put VRAM
+ *
+ * Function will try to place VRAM at base address provided
+ * as parameter.
+ */
+void amdgpu_gmc_vram_location(struct amdgpu_device *adev, struct amdgpu_gmc *mc,
+ u64 base)
+{
+ uint64_t limit = (uint64_t)amdgpu_vram_limit << 20;
+
+ mc->vram_start = base;
+ mc->vram_end = mc->vram_start + mc->mc_vram_size - 1;
+ if (limit && limit < mc->real_vram_size)
+ mc->real_vram_size = limit;
+
+ if (mc->xgmi.num_physical_nodes == 0) {
+ mc->fb_start = mc->vram_start;
+ mc->fb_end = mc->vram_end;
+ }
+ dev_info(adev->dev, "VRAM: %lluM 0x%016llX - 0x%016llX (%lluM used)\n",
+ mc->mc_vram_size >> 20, mc->vram_start,
+ mc->vram_end, mc->real_vram_size >> 20);
+}
+
+/**
+ * amdgpu_gmc_gart_location - try to find GART location
+ *
+ * @adev: amdgpu device structure holding all necessary informations
+ * @mc: memory controller structure holding memory informations
+ *
+ * Function will place try to place GART before or after VRAM.
+ *
+ * If GART size is bigger than space left then we ajust GART size.
+ * Thus function will never fails.
+ */
+void amdgpu_gmc_gart_location(struct amdgpu_device *adev, struct amdgpu_gmc *mc)
+{
+ const uint64_t four_gb = 0x100000000ULL;
+ u64 size_af, size_bf;
+ /*To avoid the hole, limit the max mc address to AMDGPU_GMC_HOLE_START*/
+ u64 max_mc_address = min(adev->gmc.mc_mask, AMDGPU_GMC_HOLE_START - 1);
+
+ mc->gart_size += adev->pm.smu_prv_buffer_size;
+
+ /* VCE doesn't like it when BOs cross a 4GB segment, so align
+ * the GART base on a 4GB boundary as well.
+ */
+ size_bf = mc->fb_start;
+ size_af = max_mc_address + 1 - ALIGN(mc->fb_end + 1, four_gb);
+
+ if (mc->gart_size > max(size_bf, size_af)) {
+ dev_warn(adev->dev, "limiting GART\n");
+ mc->gart_size = max(size_bf, size_af);
+ }
+
+ if ((size_bf >= mc->gart_size && size_bf < size_af) ||
+ (size_af < mc->gart_size))
+ mc->gart_start = 0;
+ else
+ mc->gart_start = max_mc_address - mc->gart_size + 1;
+
+ mc->gart_start &= ~(four_gb - 1);
+ mc->gart_end = mc->gart_start + mc->gart_size - 1;
+ dev_info(adev->dev, "GART: %lluM 0x%016llX - 0x%016llX\n",
+ mc->gart_size >> 20, mc->gart_start, mc->gart_end);
+}
+
+/**
+ * amdgpu_gmc_agp_location - try to find AGP location
+ * @adev: amdgpu device structure holding all necessary informations
+ * @mc: memory controller structure holding memory informations
+ *
+ * Function will place try to find a place for the AGP BAR in the MC address
+ * space.
+ *
+ * AGP BAR will be assigned the largest available hole in the address space.
+ * Should be called after VRAM and GART locations are setup.
+ */
+void amdgpu_gmc_agp_location(struct amdgpu_device *adev, struct amdgpu_gmc *mc)
+{
+ const uint64_t sixteen_gb = 1ULL << 34;
+ const uint64_t sixteen_gb_mask = ~(sixteen_gb - 1);
+ u64 size_af, size_bf;
+
+ if (mc->fb_start > mc->gart_start) {
+ size_bf = (mc->fb_start & sixteen_gb_mask) -
+ ALIGN(mc->gart_end + 1, sixteen_gb);
+ size_af = mc->mc_mask + 1 - ALIGN(mc->fb_end + 1, sixteen_gb);
+ } else {
+ size_bf = mc->fb_start & sixteen_gb_mask;
+ size_af = (mc->gart_start & sixteen_gb_mask) -
+ ALIGN(mc->fb_end + 1, sixteen_gb);
+ }
+
+ if (size_bf > size_af) {
+ mc->agp_start = (mc->fb_start - size_bf) & sixteen_gb_mask;
+ mc->agp_size = size_bf;
+ } else {
+ mc->agp_start = ALIGN(mc->fb_end + 1, sixteen_gb);
+ mc->agp_size = size_af;
+ }
+
+ mc->agp_end = mc->agp_start + mc->agp_size - 1;
+ dev_info(adev->dev, "AGP: %lluM 0x%016llX - 0x%016llX\n",
+ mc->agp_size >> 20, mc->agp_start, mc->agp_end);
+}