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![Christian König](/assets/img/avatar_default.png)
Remove the double housekeeping and use something sane to forcefuly delete BOs on unload. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2142 lines
54 KiB
C
2142 lines
54 KiB
C
/*
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* Copyright 2008 Advanced Micro Devices, Inc.
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* Copyright 2008 Red Hat Inc.
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* Copyright 2009 Jerome Glisse.
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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 "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions 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 NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Dave Airlie
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* Alex Deucher
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* Jerome Glisse
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*/
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#include <linux/console.h>
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#include <linux/slab.h>
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#include <linux/debugfs.h>
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#include <drm/drmP.h>
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#include <drm/drm_crtc_helper.h>
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#include <drm/amdgpu_drm.h>
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#include <linux/vgaarb.h>
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#include <linux/vga_switcheroo.h>
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#include <linux/efi.h>
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#include "amdgpu.h"
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#include "amdgpu_i2c.h"
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#include "atom.h"
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#include "amdgpu_atombios.h"
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#include "amd_pcie.h"
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#ifdef CONFIG_DRM_AMDGPU_CIK
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#include "cik.h"
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#endif
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#include "vi.h"
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#include "bif/bif_4_1_d.h"
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static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev);
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static void amdgpu_debugfs_regs_cleanup(struct amdgpu_device *adev);
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static const char *amdgpu_asic_name[] = {
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"BONAIRE",
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"KAVERI",
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"KABINI",
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"HAWAII",
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"MULLINS",
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"TOPAZ",
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"TONGA",
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"FIJI",
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"CARRIZO",
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"STONEY",
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"LAST",
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};
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bool amdgpu_device_is_px(struct drm_device *dev)
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{
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struct amdgpu_device *adev = dev->dev_private;
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if (adev->flags & AMD_IS_PX)
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return true;
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return false;
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}
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/*
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* MMIO register access helper functions.
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*/
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uint32_t amdgpu_mm_rreg(struct amdgpu_device *adev, uint32_t reg,
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bool always_indirect)
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{
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if ((reg * 4) < adev->rmmio_size && !always_indirect)
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return readl(((void __iomem *)adev->rmmio) + (reg * 4));
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else {
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unsigned long flags;
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uint32_t ret;
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spin_lock_irqsave(&adev->mmio_idx_lock, flags);
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writel((reg * 4), ((void __iomem *)adev->rmmio) + (mmMM_INDEX * 4));
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ret = readl(((void __iomem *)adev->rmmio) + (mmMM_DATA * 4));
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spin_unlock_irqrestore(&adev->mmio_idx_lock, flags);
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return ret;
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}
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}
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void amdgpu_mm_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v,
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bool always_indirect)
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{
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if ((reg * 4) < adev->rmmio_size && !always_indirect)
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writel(v, ((void __iomem *)adev->rmmio) + (reg * 4));
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else {
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unsigned long flags;
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spin_lock_irqsave(&adev->mmio_idx_lock, flags);
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writel((reg * 4), ((void __iomem *)adev->rmmio) + (mmMM_INDEX * 4));
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writel(v, ((void __iomem *)adev->rmmio) + (mmMM_DATA * 4));
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spin_unlock_irqrestore(&adev->mmio_idx_lock, flags);
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}
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}
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u32 amdgpu_io_rreg(struct amdgpu_device *adev, u32 reg)
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{
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if ((reg * 4) < adev->rio_mem_size)
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return ioread32(adev->rio_mem + (reg * 4));
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else {
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iowrite32((reg * 4), adev->rio_mem + (mmMM_INDEX * 4));
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return ioread32(adev->rio_mem + (mmMM_DATA * 4));
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}
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}
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void amdgpu_io_wreg(struct amdgpu_device *adev, u32 reg, u32 v)
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{
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if ((reg * 4) < adev->rio_mem_size)
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iowrite32(v, adev->rio_mem + (reg * 4));
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else {
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iowrite32((reg * 4), adev->rio_mem + (mmMM_INDEX * 4));
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iowrite32(v, adev->rio_mem + (mmMM_DATA * 4));
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}
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}
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/**
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* amdgpu_mm_rdoorbell - read a doorbell dword
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*
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* @adev: amdgpu_device pointer
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* @index: doorbell index
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*
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* Returns the value in the doorbell aperture at the
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* requested doorbell index (CIK).
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*/
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u32 amdgpu_mm_rdoorbell(struct amdgpu_device *adev, u32 index)
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{
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if (index < adev->doorbell.num_doorbells) {
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return readl(adev->doorbell.ptr + index);
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} else {
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DRM_ERROR("reading beyond doorbell aperture: 0x%08x!\n", index);
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return 0;
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}
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}
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/**
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* amdgpu_mm_wdoorbell - write a doorbell dword
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*
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* @adev: amdgpu_device pointer
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* @index: doorbell index
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* @v: value to write
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*
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* Writes @v to the doorbell aperture at the
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* requested doorbell index (CIK).
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*/
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void amdgpu_mm_wdoorbell(struct amdgpu_device *adev, u32 index, u32 v)
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{
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if (index < adev->doorbell.num_doorbells) {
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writel(v, adev->doorbell.ptr + index);
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} else {
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DRM_ERROR("writing beyond doorbell aperture: 0x%08x!\n", index);
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}
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}
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/**
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* amdgpu_invalid_rreg - dummy reg read function
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*
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* @adev: amdgpu device pointer
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* @reg: offset of register
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*
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* Dummy register read function. Used for register blocks
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* that certain asics don't have (all asics).
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* Returns the value in the register.
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*/
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static uint32_t amdgpu_invalid_rreg(struct amdgpu_device *adev, uint32_t reg)
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{
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DRM_ERROR("Invalid callback to read register 0x%04X\n", reg);
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BUG();
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return 0;
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}
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/**
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* amdgpu_invalid_wreg - dummy reg write function
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*
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* @adev: amdgpu device pointer
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* @reg: offset of register
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* @v: value to write to the register
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*
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* Dummy register read function. Used for register blocks
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* that certain asics don't have (all asics).
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*/
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static void amdgpu_invalid_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v)
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{
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DRM_ERROR("Invalid callback to write register 0x%04X with 0x%08X\n",
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reg, v);
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BUG();
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}
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/**
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* amdgpu_block_invalid_rreg - dummy reg read function
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*
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* @adev: amdgpu device pointer
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* @block: offset of instance
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* @reg: offset of register
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*
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* Dummy register read function. Used for register blocks
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* that certain asics don't have (all asics).
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* Returns the value in the register.
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*/
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static uint32_t amdgpu_block_invalid_rreg(struct amdgpu_device *adev,
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uint32_t block, uint32_t reg)
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{
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DRM_ERROR("Invalid callback to read register 0x%04X in block 0x%04X\n",
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reg, block);
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BUG();
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return 0;
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}
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/**
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* amdgpu_block_invalid_wreg - dummy reg write function
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*
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* @adev: amdgpu device pointer
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* @block: offset of instance
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* @reg: offset of register
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* @v: value to write to the register
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*
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* Dummy register read function. Used for register blocks
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* that certain asics don't have (all asics).
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*/
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static void amdgpu_block_invalid_wreg(struct amdgpu_device *adev,
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uint32_t block,
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uint32_t reg, uint32_t v)
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{
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DRM_ERROR("Invalid block callback to write register 0x%04X in block 0x%04X with 0x%08X\n",
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reg, block, v);
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BUG();
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}
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static int amdgpu_vram_scratch_init(struct amdgpu_device *adev)
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{
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int r;
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if (adev->vram_scratch.robj == NULL) {
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r = amdgpu_bo_create(adev, AMDGPU_GPU_PAGE_SIZE,
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PAGE_SIZE, true, AMDGPU_GEM_DOMAIN_VRAM,
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AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
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NULL, NULL, &adev->vram_scratch.robj);
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if (r) {
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return r;
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}
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}
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r = amdgpu_bo_reserve(adev->vram_scratch.robj, false);
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if (unlikely(r != 0))
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return r;
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r = amdgpu_bo_pin(adev->vram_scratch.robj,
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AMDGPU_GEM_DOMAIN_VRAM, &adev->vram_scratch.gpu_addr);
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if (r) {
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amdgpu_bo_unreserve(adev->vram_scratch.robj);
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return r;
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}
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r = amdgpu_bo_kmap(adev->vram_scratch.robj,
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(void **)&adev->vram_scratch.ptr);
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if (r)
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amdgpu_bo_unpin(adev->vram_scratch.robj);
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amdgpu_bo_unreserve(adev->vram_scratch.robj);
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return r;
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}
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static void amdgpu_vram_scratch_fini(struct amdgpu_device *adev)
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{
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int r;
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if (adev->vram_scratch.robj == NULL) {
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return;
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}
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r = amdgpu_bo_reserve(adev->vram_scratch.robj, false);
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if (likely(r == 0)) {
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amdgpu_bo_kunmap(adev->vram_scratch.robj);
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amdgpu_bo_unpin(adev->vram_scratch.robj);
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amdgpu_bo_unreserve(adev->vram_scratch.robj);
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}
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amdgpu_bo_unref(&adev->vram_scratch.robj);
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}
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/**
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* amdgpu_program_register_sequence - program an array of registers.
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*
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* @adev: amdgpu_device pointer
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* @registers: pointer to the register array
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* @array_size: size of the register array
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*
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* Programs an array or registers with and and or masks.
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* This is a helper for setting golden registers.
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*/
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void amdgpu_program_register_sequence(struct amdgpu_device *adev,
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const u32 *registers,
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const u32 array_size)
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{
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u32 tmp, reg, and_mask, or_mask;
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int i;
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if (array_size % 3)
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return;
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for (i = 0; i < array_size; i +=3) {
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reg = registers[i + 0];
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and_mask = registers[i + 1];
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or_mask = registers[i + 2];
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if (and_mask == 0xffffffff) {
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tmp = or_mask;
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} else {
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tmp = RREG32(reg);
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tmp &= ~and_mask;
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tmp |= or_mask;
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}
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WREG32(reg, tmp);
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}
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}
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void amdgpu_pci_config_reset(struct amdgpu_device *adev)
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{
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pci_write_config_dword(adev->pdev, 0x7c, AMDGPU_ASIC_RESET_DATA);
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}
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/*
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* GPU doorbell aperture helpers function.
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*/
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/**
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* amdgpu_doorbell_init - Init doorbell driver information.
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*
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* @adev: amdgpu_device pointer
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*
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* Init doorbell driver information (CIK)
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* Returns 0 on success, error on failure.
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*/
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static int amdgpu_doorbell_init(struct amdgpu_device *adev)
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{
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/* doorbell bar mapping */
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adev->doorbell.base = pci_resource_start(adev->pdev, 2);
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adev->doorbell.size = pci_resource_len(adev->pdev, 2);
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adev->doorbell.num_doorbells = min_t(u32, adev->doorbell.size / sizeof(u32),
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AMDGPU_DOORBELL_MAX_ASSIGNMENT+1);
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if (adev->doorbell.num_doorbells == 0)
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return -EINVAL;
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adev->doorbell.ptr = ioremap(adev->doorbell.base, adev->doorbell.num_doorbells * sizeof(u32));
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if (adev->doorbell.ptr == NULL) {
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return -ENOMEM;
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}
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DRM_INFO("doorbell mmio base: 0x%08X\n", (uint32_t)adev->doorbell.base);
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DRM_INFO("doorbell mmio size: %u\n", (unsigned)adev->doorbell.size);
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return 0;
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}
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/**
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* amdgpu_doorbell_fini - Tear down doorbell driver information.
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*
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* @adev: amdgpu_device pointer
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*
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* Tear down doorbell driver information (CIK)
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*/
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static void amdgpu_doorbell_fini(struct amdgpu_device *adev)
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{
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iounmap(adev->doorbell.ptr);
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adev->doorbell.ptr = NULL;
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}
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/**
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* amdgpu_doorbell_get_kfd_info - Report doorbell configuration required to
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* setup amdkfd
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*
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* @adev: amdgpu_device pointer
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* @aperture_base: output returning doorbell aperture base physical address
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* @aperture_size: output returning doorbell aperture size in bytes
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* @start_offset: output returning # of doorbell bytes reserved for amdgpu.
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*
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* amdgpu and amdkfd share the doorbell aperture. amdgpu sets it up,
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* takes doorbells required for its own rings and reports the setup to amdkfd.
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* amdgpu reserved doorbells are at the start of the doorbell aperture.
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*/
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void amdgpu_doorbell_get_kfd_info(struct amdgpu_device *adev,
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phys_addr_t *aperture_base,
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size_t *aperture_size,
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size_t *start_offset)
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{
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/*
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* The first num_doorbells are used by amdgpu.
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* amdkfd takes whatever's left in the aperture.
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*/
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if (adev->doorbell.size > adev->doorbell.num_doorbells * sizeof(u32)) {
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*aperture_base = adev->doorbell.base;
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*aperture_size = adev->doorbell.size;
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*start_offset = adev->doorbell.num_doorbells * sizeof(u32);
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} else {
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*aperture_base = 0;
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*aperture_size = 0;
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*start_offset = 0;
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}
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}
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/*
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* amdgpu_wb_*()
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* Writeback is the the method by which the the GPU updates special pages
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* in memory with the status of certain GPU events (fences, ring pointers,
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* etc.).
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*/
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/**
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* amdgpu_wb_fini - Disable Writeback and free memory
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*
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* @adev: amdgpu_device pointer
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*
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* Disables Writeback and frees the Writeback memory (all asics).
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* Used at driver shutdown.
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*/
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static void amdgpu_wb_fini(struct amdgpu_device *adev)
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{
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if (adev->wb.wb_obj) {
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if (!amdgpu_bo_reserve(adev->wb.wb_obj, false)) {
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amdgpu_bo_kunmap(adev->wb.wb_obj);
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amdgpu_bo_unpin(adev->wb.wb_obj);
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amdgpu_bo_unreserve(adev->wb.wb_obj);
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}
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amdgpu_bo_unref(&adev->wb.wb_obj);
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adev->wb.wb = NULL;
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adev->wb.wb_obj = NULL;
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}
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}
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/**
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* amdgpu_wb_init- Init Writeback driver info and allocate memory
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*
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* @adev: amdgpu_device pointer
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*
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* Disables Writeback and frees the Writeback memory (all asics).
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* Used at driver startup.
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* Returns 0 on success or an -error on failure.
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*/
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static int amdgpu_wb_init(struct amdgpu_device *adev)
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{
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int r;
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if (adev->wb.wb_obj == NULL) {
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r = amdgpu_bo_create(adev, AMDGPU_MAX_WB * 4, PAGE_SIZE, true,
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AMDGPU_GEM_DOMAIN_GTT, 0, NULL, NULL,
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&adev->wb.wb_obj);
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if (r) {
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dev_warn(adev->dev, "(%d) create WB bo failed\n", r);
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return r;
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}
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r = amdgpu_bo_reserve(adev->wb.wb_obj, false);
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if (unlikely(r != 0)) {
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amdgpu_wb_fini(adev);
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return r;
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}
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r = amdgpu_bo_pin(adev->wb.wb_obj, AMDGPU_GEM_DOMAIN_GTT,
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&adev->wb.gpu_addr);
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if (r) {
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amdgpu_bo_unreserve(adev->wb.wb_obj);
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dev_warn(adev->dev, "(%d) pin WB bo failed\n", r);
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amdgpu_wb_fini(adev);
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return r;
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}
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r = amdgpu_bo_kmap(adev->wb.wb_obj, (void **)&adev->wb.wb);
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|
amdgpu_bo_unreserve(adev->wb.wb_obj);
|
|
if (r) {
|
|
dev_warn(adev->dev, "(%d) map WB bo failed\n", r);
|
|
amdgpu_wb_fini(adev);
|
|
return r;
|
|
}
|
|
|
|
adev->wb.num_wb = AMDGPU_MAX_WB;
|
|
memset(&adev->wb.used, 0, sizeof(adev->wb.used));
|
|
|
|
/* clear wb memory */
|
|
memset((char *)adev->wb.wb, 0, AMDGPU_GPU_PAGE_SIZE);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* amdgpu_wb_get - Allocate a wb entry
|
|
*
|
|
* @adev: amdgpu_device pointer
|
|
* @wb: wb index
|
|
*
|
|
* Allocate a wb slot for use by the driver (all asics).
|
|
* Returns 0 on success or -EINVAL on failure.
|
|
*/
|
|
int amdgpu_wb_get(struct amdgpu_device *adev, u32 *wb)
|
|
{
|
|
unsigned long offset = find_first_zero_bit(adev->wb.used, adev->wb.num_wb);
|
|
if (offset < adev->wb.num_wb) {
|
|
__set_bit(offset, adev->wb.used);
|
|
*wb = offset;
|
|
return 0;
|
|
} else {
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* amdgpu_wb_free - Free a wb entry
|
|
*
|
|
* @adev: amdgpu_device pointer
|
|
* @wb: wb index
|
|
*
|
|
* Free a wb slot allocated for use by the driver (all asics)
|
|
*/
|
|
void amdgpu_wb_free(struct amdgpu_device *adev, u32 wb)
|
|
{
|
|
if (wb < adev->wb.num_wb)
|
|
__clear_bit(wb, adev->wb.used);
|
|
}
|
|
|
|
/**
|
|
* amdgpu_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 place try to place VRAM at base address provided
|
|
* as parameter (which is so far either PCI aperture address or
|
|
* for IGP TOM base address).
|
|
*
|
|
* If there is not enough space to fit the unvisible VRAM in the 32bits
|
|
* address space then we limit the VRAM size to the aperture.
|
|
*
|
|
* Note: We don't explicitly enforce VRAM start to be aligned on VRAM size,
|
|
* this shouldn't be a problem as we are using the PCI aperture as a reference.
|
|
* Otherwise this would be needed for rv280, all r3xx, and all r4xx, but
|
|
* not IGP.
|
|
*
|
|
* Note: we use mc_vram_size as on some board we need to program the mc to
|
|
* cover the whole aperture even if VRAM size is inferior to aperture size
|
|
* Novell bug 204882 + along with lots of ubuntu ones
|
|
*
|
|
* Note: when limiting vram it's safe to overwritte real_vram_size because
|
|
* we are not in case where real_vram_size is inferior to mc_vram_size (ie
|
|
* note afected by bogus hw of Novell bug 204882 + along with lots of ubuntu
|
|
* ones)
|
|
*
|
|
* Note: IGP TOM addr should be the same as the aperture addr, we don't
|
|
* explicitly check for that thought.
|
|
*
|
|
* FIXME: when reducing VRAM size align new size on power of 2.
|
|
*/
|
|
void amdgpu_vram_location(struct amdgpu_device *adev, struct amdgpu_mc *mc, u64 base)
|
|
{
|
|
uint64_t limit = (uint64_t)amdgpu_vram_limit << 20;
|
|
|
|
mc->vram_start = base;
|
|
if (mc->mc_vram_size > (adev->mc.mc_mask - base + 1)) {
|
|
dev_warn(adev->dev, "limiting VRAM to PCI aperture size\n");
|
|
mc->real_vram_size = mc->aper_size;
|
|
mc->mc_vram_size = mc->aper_size;
|
|
}
|
|
mc->vram_end = mc->vram_start + mc->mc_vram_size - 1;
|
|
if (limit && limit < mc->real_vram_size)
|
|
mc->real_vram_size = limit;
|
|
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_gtt_location - try to find GTT location
|
|
* @adev: amdgpu device structure holding all necessary informations
|
|
* @mc: memory controller structure holding memory informations
|
|
*
|
|
* Function will place try to place GTT before or after VRAM.
|
|
*
|
|
* If GTT size is bigger than space left then we ajust GTT size.
|
|
* Thus function will never fails.
|
|
*
|
|
* FIXME: when reducing GTT size align new size on power of 2.
|
|
*/
|
|
void amdgpu_gtt_location(struct amdgpu_device *adev, struct amdgpu_mc *mc)
|
|
{
|
|
u64 size_af, size_bf;
|
|
|
|
size_af = ((adev->mc.mc_mask - mc->vram_end) + mc->gtt_base_align) & ~mc->gtt_base_align;
|
|
size_bf = mc->vram_start & ~mc->gtt_base_align;
|
|
if (size_bf > size_af) {
|
|
if (mc->gtt_size > size_bf) {
|
|
dev_warn(adev->dev, "limiting GTT\n");
|
|
mc->gtt_size = size_bf;
|
|
}
|
|
mc->gtt_start = (mc->vram_start & ~mc->gtt_base_align) - mc->gtt_size;
|
|
} else {
|
|
if (mc->gtt_size > size_af) {
|
|
dev_warn(adev->dev, "limiting GTT\n");
|
|
mc->gtt_size = size_af;
|
|
}
|
|
mc->gtt_start = (mc->vram_end + 1 + mc->gtt_base_align) & ~mc->gtt_base_align;
|
|
}
|
|
mc->gtt_end = mc->gtt_start + mc->gtt_size - 1;
|
|
dev_info(adev->dev, "GTT: %lluM 0x%016llX - 0x%016llX\n",
|
|
mc->gtt_size >> 20, mc->gtt_start, mc->gtt_end);
|
|
}
|
|
|
|
/*
|
|
* GPU helpers function.
|
|
*/
|
|
/**
|
|
* amdgpu_card_posted - check if the hw has already been initialized
|
|
*
|
|
* @adev: amdgpu_device pointer
|
|
*
|
|
* Check if the asic has been initialized (all asics).
|
|
* Used at driver startup.
|
|
* Returns true if initialized or false if not.
|
|
*/
|
|
bool amdgpu_card_posted(struct amdgpu_device *adev)
|
|
{
|
|
uint32_t reg;
|
|
|
|
/* then check MEM_SIZE, in case the crtcs are off */
|
|
reg = RREG32(mmCONFIG_MEMSIZE);
|
|
|
|
if (reg)
|
|
return true;
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
/**
|
|
* amdgpu_dummy_page_init - init dummy page used by the driver
|
|
*
|
|
* @adev: amdgpu_device pointer
|
|
*
|
|
* Allocate the dummy page used by the driver (all asics).
|
|
* This dummy page is used by the driver as a filler for gart entries
|
|
* when pages are taken out of the GART
|
|
* Returns 0 on sucess, -ENOMEM on failure.
|
|
*/
|
|
int amdgpu_dummy_page_init(struct amdgpu_device *adev)
|
|
{
|
|
if (adev->dummy_page.page)
|
|
return 0;
|
|
adev->dummy_page.page = alloc_page(GFP_DMA32 | GFP_KERNEL | __GFP_ZERO);
|
|
if (adev->dummy_page.page == NULL)
|
|
return -ENOMEM;
|
|
adev->dummy_page.addr = pci_map_page(adev->pdev, adev->dummy_page.page,
|
|
0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
|
|
if (pci_dma_mapping_error(adev->pdev, adev->dummy_page.addr)) {
|
|
dev_err(&adev->pdev->dev, "Failed to DMA MAP the dummy page\n");
|
|
__free_page(adev->dummy_page.page);
|
|
adev->dummy_page.page = NULL;
|
|
return -ENOMEM;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* amdgpu_dummy_page_fini - free dummy page used by the driver
|
|
*
|
|
* @adev: amdgpu_device pointer
|
|
*
|
|
* Frees the dummy page used by the driver (all asics).
|
|
*/
|
|
void amdgpu_dummy_page_fini(struct amdgpu_device *adev)
|
|
{
|
|
if (adev->dummy_page.page == NULL)
|
|
return;
|
|
pci_unmap_page(adev->pdev, adev->dummy_page.addr,
|
|
PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
|
|
__free_page(adev->dummy_page.page);
|
|
adev->dummy_page.page = NULL;
|
|
}
|
|
|
|
|
|
/* ATOM accessor methods */
|
|
/*
|
|
* ATOM is an interpreted byte code stored in tables in the vbios. The
|
|
* driver registers callbacks to access registers and the interpreter
|
|
* in the driver parses the tables and executes then to program specific
|
|
* actions (set display modes, asic init, etc.). See amdgpu_atombios.c,
|
|
* atombios.h, and atom.c
|
|
*/
|
|
|
|
/**
|
|
* cail_pll_read - read PLL register
|
|
*
|
|
* @info: atom card_info pointer
|
|
* @reg: PLL register offset
|
|
*
|
|
* Provides a PLL register accessor for the atom interpreter (r4xx+).
|
|
* Returns the value of the PLL register.
|
|
*/
|
|
static uint32_t cail_pll_read(struct card_info *info, uint32_t reg)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* cail_pll_write - write PLL register
|
|
*
|
|
* @info: atom card_info pointer
|
|
* @reg: PLL register offset
|
|
* @val: value to write to the pll register
|
|
*
|
|
* Provides a PLL register accessor for the atom interpreter (r4xx+).
|
|
*/
|
|
static void cail_pll_write(struct card_info *info, uint32_t reg, uint32_t val)
|
|
{
|
|
|
|
}
|
|
|
|
/**
|
|
* cail_mc_read - read MC (Memory Controller) register
|
|
*
|
|
* @info: atom card_info pointer
|
|
* @reg: MC register offset
|
|
*
|
|
* Provides an MC register accessor for the atom interpreter (r4xx+).
|
|
* Returns the value of the MC register.
|
|
*/
|
|
static uint32_t cail_mc_read(struct card_info *info, uint32_t reg)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* cail_mc_write - write MC (Memory Controller) register
|
|
*
|
|
* @info: atom card_info pointer
|
|
* @reg: MC register offset
|
|
* @val: value to write to the pll register
|
|
*
|
|
* Provides a MC register accessor for the atom interpreter (r4xx+).
|
|
*/
|
|
static void cail_mc_write(struct card_info *info, uint32_t reg, uint32_t val)
|
|
{
|
|
|
|
}
|
|
|
|
/**
|
|
* cail_reg_write - write MMIO register
|
|
*
|
|
* @info: atom card_info pointer
|
|
* @reg: MMIO register offset
|
|
* @val: value to write to the pll register
|
|
*
|
|
* Provides a MMIO register accessor for the atom interpreter (r4xx+).
|
|
*/
|
|
static void cail_reg_write(struct card_info *info, uint32_t reg, uint32_t val)
|
|
{
|
|
struct amdgpu_device *adev = info->dev->dev_private;
|
|
|
|
WREG32(reg, val);
|
|
}
|
|
|
|
/**
|
|
* cail_reg_read - read MMIO register
|
|
*
|
|
* @info: atom card_info pointer
|
|
* @reg: MMIO register offset
|
|
*
|
|
* Provides an MMIO register accessor for the atom interpreter (r4xx+).
|
|
* Returns the value of the MMIO register.
|
|
*/
|
|
static uint32_t cail_reg_read(struct card_info *info, uint32_t reg)
|
|
{
|
|
struct amdgpu_device *adev = info->dev->dev_private;
|
|
uint32_t r;
|
|
|
|
r = RREG32(reg);
|
|
return r;
|
|
}
|
|
|
|
/**
|
|
* cail_ioreg_write - write IO register
|
|
*
|
|
* @info: atom card_info pointer
|
|
* @reg: IO register offset
|
|
* @val: value to write to the pll register
|
|
*
|
|
* Provides a IO register accessor for the atom interpreter (r4xx+).
|
|
*/
|
|
static void cail_ioreg_write(struct card_info *info, uint32_t reg, uint32_t val)
|
|
{
|
|
struct amdgpu_device *adev = info->dev->dev_private;
|
|
|
|
WREG32_IO(reg, val);
|
|
}
|
|
|
|
/**
|
|
* cail_ioreg_read - read IO register
|
|
*
|
|
* @info: atom card_info pointer
|
|
* @reg: IO register offset
|
|
*
|
|
* Provides an IO register accessor for the atom interpreter (r4xx+).
|
|
* Returns the value of the IO register.
|
|
*/
|
|
static uint32_t cail_ioreg_read(struct card_info *info, uint32_t reg)
|
|
{
|
|
struct amdgpu_device *adev = info->dev->dev_private;
|
|
uint32_t r;
|
|
|
|
r = RREG32_IO(reg);
|
|
return r;
|
|
}
|
|
|
|
/**
|
|
* amdgpu_atombios_fini - free the driver info and callbacks for atombios
|
|
*
|
|
* @adev: amdgpu_device pointer
|
|
*
|
|
* Frees the driver info and register access callbacks for the ATOM
|
|
* interpreter (r4xx+).
|
|
* Called at driver shutdown.
|
|
*/
|
|
static void amdgpu_atombios_fini(struct amdgpu_device *adev)
|
|
{
|
|
if (adev->mode_info.atom_context)
|
|
kfree(adev->mode_info.atom_context->scratch);
|
|
kfree(adev->mode_info.atom_context);
|
|
adev->mode_info.atom_context = NULL;
|
|
kfree(adev->mode_info.atom_card_info);
|
|
adev->mode_info.atom_card_info = NULL;
|
|
}
|
|
|
|
/**
|
|
* amdgpu_atombios_init - init the driver info and callbacks for atombios
|
|
*
|
|
* @adev: amdgpu_device pointer
|
|
*
|
|
* Initializes the driver info and register access callbacks for the
|
|
* ATOM interpreter (r4xx+).
|
|
* Returns 0 on sucess, -ENOMEM on failure.
|
|
* Called at driver startup.
|
|
*/
|
|
static int amdgpu_atombios_init(struct amdgpu_device *adev)
|
|
{
|
|
struct card_info *atom_card_info =
|
|
kzalloc(sizeof(struct card_info), GFP_KERNEL);
|
|
|
|
if (!atom_card_info)
|
|
return -ENOMEM;
|
|
|
|
adev->mode_info.atom_card_info = atom_card_info;
|
|
atom_card_info->dev = adev->ddev;
|
|
atom_card_info->reg_read = cail_reg_read;
|
|
atom_card_info->reg_write = cail_reg_write;
|
|
/* needed for iio ops */
|
|
if (adev->rio_mem) {
|
|
atom_card_info->ioreg_read = cail_ioreg_read;
|
|
atom_card_info->ioreg_write = cail_ioreg_write;
|
|
} else {
|
|
DRM_ERROR("Unable to find PCI I/O BAR; using MMIO for ATOM IIO\n");
|
|
atom_card_info->ioreg_read = cail_reg_read;
|
|
atom_card_info->ioreg_write = cail_reg_write;
|
|
}
|
|
atom_card_info->mc_read = cail_mc_read;
|
|
atom_card_info->mc_write = cail_mc_write;
|
|
atom_card_info->pll_read = cail_pll_read;
|
|
atom_card_info->pll_write = cail_pll_write;
|
|
|
|
adev->mode_info.atom_context = amdgpu_atom_parse(atom_card_info, adev->bios);
|
|
if (!adev->mode_info.atom_context) {
|
|
amdgpu_atombios_fini(adev);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
mutex_init(&adev->mode_info.atom_context->mutex);
|
|
amdgpu_atombios_scratch_regs_init(adev);
|
|
amdgpu_atom_allocate_fb_scratch(adev->mode_info.atom_context);
|
|
return 0;
|
|
}
|
|
|
|
/* if we get transitioned to only one device, take VGA back */
|
|
/**
|
|
* amdgpu_vga_set_decode - enable/disable vga decode
|
|
*
|
|
* @cookie: amdgpu_device pointer
|
|
* @state: enable/disable vga decode
|
|
*
|
|
* Enable/disable vga decode (all asics).
|
|
* Returns VGA resource flags.
|
|
*/
|
|
static unsigned int amdgpu_vga_set_decode(void *cookie, bool state)
|
|
{
|
|
struct amdgpu_device *adev = cookie;
|
|
amdgpu_asic_set_vga_state(adev, state);
|
|
if (state)
|
|
return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM |
|
|
VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
|
|
else
|
|
return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
|
|
}
|
|
|
|
/**
|
|
* amdgpu_check_pot_argument - check that argument is a power of two
|
|
*
|
|
* @arg: value to check
|
|
*
|
|
* Validates that a certain argument is a power of two (all asics).
|
|
* Returns true if argument is valid.
|
|
*/
|
|
static bool amdgpu_check_pot_argument(int arg)
|
|
{
|
|
return (arg & (arg - 1)) == 0;
|
|
}
|
|
|
|
/**
|
|
* amdgpu_check_arguments - validate module params
|
|
*
|
|
* @adev: amdgpu_device pointer
|
|
*
|
|
* Validates certain module parameters and updates
|
|
* the associated values used by the driver (all asics).
|
|
*/
|
|
static void amdgpu_check_arguments(struct amdgpu_device *adev)
|
|
{
|
|
if (amdgpu_sched_jobs < 4) {
|
|
dev_warn(adev->dev, "sched jobs (%d) must be at least 4\n",
|
|
amdgpu_sched_jobs);
|
|
amdgpu_sched_jobs = 4;
|
|
} else if (!amdgpu_check_pot_argument(amdgpu_sched_jobs)){
|
|
dev_warn(adev->dev, "sched jobs (%d) must be a power of 2\n",
|
|
amdgpu_sched_jobs);
|
|
amdgpu_sched_jobs = roundup_pow_of_two(amdgpu_sched_jobs);
|
|
}
|
|
|
|
if (amdgpu_gart_size != -1) {
|
|
/* gtt size must be power of two and greater or equal to 32M */
|
|
if (amdgpu_gart_size < 32) {
|
|
dev_warn(adev->dev, "gart size (%d) too small\n",
|
|
amdgpu_gart_size);
|
|
amdgpu_gart_size = -1;
|
|
} else if (!amdgpu_check_pot_argument(amdgpu_gart_size)) {
|
|
dev_warn(adev->dev, "gart size (%d) must be a power of 2\n",
|
|
amdgpu_gart_size);
|
|
amdgpu_gart_size = -1;
|
|
}
|
|
}
|
|
|
|
if (!amdgpu_check_pot_argument(amdgpu_vm_size)) {
|
|
dev_warn(adev->dev, "VM size (%d) must be a power of 2\n",
|
|
amdgpu_vm_size);
|
|
amdgpu_vm_size = 8;
|
|
}
|
|
|
|
if (amdgpu_vm_size < 1) {
|
|
dev_warn(adev->dev, "VM size (%d) too small, min is 1GB\n",
|
|
amdgpu_vm_size);
|
|
amdgpu_vm_size = 8;
|
|
}
|
|
|
|
/*
|
|
* Max GPUVM size for Cayman, SI and CI are 40 bits.
|
|
*/
|
|
if (amdgpu_vm_size > 1024) {
|
|
dev_warn(adev->dev, "VM size (%d) too large, max is 1TB\n",
|
|
amdgpu_vm_size);
|
|
amdgpu_vm_size = 8;
|
|
}
|
|
|
|
/* defines number of bits in page table versus page directory,
|
|
* a page is 4KB so we have 12 bits offset, minimum 9 bits in the
|
|
* page table and the remaining bits are in the page directory */
|
|
if (amdgpu_vm_block_size == -1) {
|
|
|
|
/* Total bits covered by PD + PTs */
|
|
unsigned bits = ilog2(amdgpu_vm_size) + 18;
|
|
|
|
/* Make sure the PD is 4K in size up to 8GB address space.
|
|
Above that split equal between PD and PTs */
|
|
if (amdgpu_vm_size <= 8)
|
|
amdgpu_vm_block_size = bits - 9;
|
|
else
|
|
amdgpu_vm_block_size = (bits + 3) / 2;
|
|
|
|
} else if (amdgpu_vm_block_size < 9) {
|
|
dev_warn(adev->dev, "VM page table size (%d) too small\n",
|
|
amdgpu_vm_block_size);
|
|
amdgpu_vm_block_size = 9;
|
|
}
|
|
|
|
if (amdgpu_vm_block_size > 24 ||
|
|
(amdgpu_vm_size * 1024) < (1ull << amdgpu_vm_block_size)) {
|
|
dev_warn(adev->dev, "VM page table size (%d) too large\n",
|
|
amdgpu_vm_block_size);
|
|
amdgpu_vm_block_size = 9;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* amdgpu_switcheroo_set_state - set switcheroo state
|
|
*
|
|
* @pdev: pci dev pointer
|
|
* @state: vga_switcheroo state
|
|
*
|
|
* Callback for the switcheroo driver. Suspends or resumes the
|
|
* the asics before or after it is powered up using ACPI methods.
|
|
*/
|
|
static void amdgpu_switcheroo_set_state(struct pci_dev *pdev, enum vga_switcheroo_state state)
|
|
{
|
|
struct drm_device *dev = pci_get_drvdata(pdev);
|
|
|
|
if (amdgpu_device_is_px(dev) && state == VGA_SWITCHEROO_OFF)
|
|
return;
|
|
|
|
if (state == VGA_SWITCHEROO_ON) {
|
|
unsigned d3_delay = dev->pdev->d3_delay;
|
|
|
|
printk(KERN_INFO "amdgpu: switched on\n");
|
|
/* don't suspend or resume card normally */
|
|
dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
|
|
|
|
amdgpu_resume_kms(dev, true, true);
|
|
|
|
dev->pdev->d3_delay = d3_delay;
|
|
|
|
dev->switch_power_state = DRM_SWITCH_POWER_ON;
|
|
drm_kms_helper_poll_enable(dev);
|
|
} else {
|
|
printk(KERN_INFO "amdgpu: switched off\n");
|
|
drm_kms_helper_poll_disable(dev);
|
|
dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
|
|
amdgpu_suspend_kms(dev, true, true);
|
|
dev->switch_power_state = DRM_SWITCH_POWER_OFF;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* amdgpu_switcheroo_can_switch - see if switcheroo state can change
|
|
*
|
|
* @pdev: pci dev pointer
|
|
*
|
|
* Callback for the switcheroo driver. Check of the switcheroo
|
|
* state can be changed.
|
|
* Returns true if the state can be changed, false if not.
|
|
*/
|
|
static bool amdgpu_switcheroo_can_switch(struct pci_dev *pdev)
|
|
{
|
|
struct drm_device *dev = pci_get_drvdata(pdev);
|
|
|
|
/*
|
|
* FIXME: open_count is protected by drm_global_mutex but that would lead to
|
|
* locking inversion with the driver load path. And the access here is
|
|
* completely racy anyway. So don't bother with locking for now.
|
|
*/
|
|
return dev->open_count == 0;
|
|
}
|
|
|
|
static const struct vga_switcheroo_client_ops amdgpu_switcheroo_ops = {
|
|
.set_gpu_state = amdgpu_switcheroo_set_state,
|
|
.reprobe = NULL,
|
|
.can_switch = amdgpu_switcheroo_can_switch,
|
|
};
|
|
|
|
int amdgpu_set_clockgating_state(struct amdgpu_device *adev,
|
|
enum amd_ip_block_type block_type,
|
|
enum amd_clockgating_state state)
|
|
{
|
|
int i, r = 0;
|
|
|
|
for (i = 0; i < adev->num_ip_blocks; i++) {
|
|
if (adev->ip_blocks[i].type == block_type) {
|
|
r = adev->ip_blocks[i].funcs->set_clockgating_state((void *)adev,
|
|
state);
|
|
if (r)
|
|
return r;
|
|
}
|
|
}
|
|
return r;
|
|
}
|
|
|
|
int amdgpu_set_powergating_state(struct amdgpu_device *adev,
|
|
enum amd_ip_block_type block_type,
|
|
enum amd_powergating_state state)
|
|
{
|
|
int i, r = 0;
|
|
|
|
for (i = 0; i < adev->num_ip_blocks; i++) {
|
|
if (adev->ip_blocks[i].type == block_type) {
|
|
r = adev->ip_blocks[i].funcs->set_powergating_state((void *)adev,
|
|
state);
|
|
if (r)
|
|
return r;
|
|
}
|
|
}
|
|
return r;
|
|
}
|
|
|
|
const struct amdgpu_ip_block_version * amdgpu_get_ip_block(
|
|
struct amdgpu_device *adev,
|
|
enum amd_ip_block_type type)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < adev->num_ip_blocks; i++)
|
|
if (adev->ip_blocks[i].type == type)
|
|
return &adev->ip_blocks[i];
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* amdgpu_ip_block_version_cmp
|
|
*
|
|
* @adev: amdgpu_device pointer
|
|
* @type: enum amd_ip_block_type
|
|
* @major: major version
|
|
* @minor: minor version
|
|
*
|
|
* return 0 if equal or greater
|
|
* return 1 if smaller or the ip_block doesn't exist
|
|
*/
|
|
int amdgpu_ip_block_version_cmp(struct amdgpu_device *adev,
|
|
enum amd_ip_block_type type,
|
|
u32 major, u32 minor)
|
|
{
|
|
const struct amdgpu_ip_block_version *ip_block;
|
|
ip_block = amdgpu_get_ip_block(adev, type);
|
|
|
|
if (ip_block && ((ip_block->major > major) ||
|
|
((ip_block->major == major) &&
|
|
(ip_block->minor >= minor))))
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int amdgpu_early_init(struct amdgpu_device *adev)
|
|
{
|
|
int i, r;
|
|
|
|
switch (adev->asic_type) {
|
|
case CHIP_TOPAZ:
|
|
case CHIP_TONGA:
|
|
case CHIP_FIJI:
|
|
case CHIP_CARRIZO:
|
|
case CHIP_STONEY:
|
|
if (adev->asic_type == CHIP_CARRIZO || adev->asic_type == CHIP_STONEY)
|
|
adev->family = AMDGPU_FAMILY_CZ;
|
|
else
|
|
adev->family = AMDGPU_FAMILY_VI;
|
|
|
|
r = vi_set_ip_blocks(adev);
|
|
if (r)
|
|
return r;
|
|
break;
|
|
#ifdef CONFIG_DRM_AMDGPU_CIK
|
|
case CHIP_BONAIRE:
|
|
case CHIP_HAWAII:
|
|
case CHIP_KAVERI:
|
|
case CHIP_KABINI:
|
|
case CHIP_MULLINS:
|
|
if ((adev->asic_type == CHIP_BONAIRE) || (adev->asic_type == CHIP_HAWAII))
|
|
adev->family = AMDGPU_FAMILY_CI;
|
|
else
|
|
adev->family = AMDGPU_FAMILY_KV;
|
|
|
|
r = cik_set_ip_blocks(adev);
|
|
if (r)
|
|
return r;
|
|
break;
|
|
#endif
|
|
default:
|
|
/* FIXME: not supported yet */
|
|
return -EINVAL;
|
|
}
|
|
|
|
adev->ip_block_status = kcalloc(adev->num_ip_blocks,
|
|
sizeof(struct amdgpu_ip_block_status), GFP_KERNEL);
|
|
if (adev->ip_block_status == NULL)
|
|
return -ENOMEM;
|
|
|
|
if (adev->ip_blocks == NULL) {
|
|
DRM_ERROR("No IP blocks found!\n");
|
|
return r;
|
|
}
|
|
|
|
for (i = 0; i < adev->num_ip_blocks; i++) {
|
|
if ((amdgpu_ip_block_mask & (1 << i)) == 0) {
|
|
DRM_ERROR("disabled ip block: %d\n", i);
|
|
adev->ip_block_status[i].valid = false;
|
|
} else {
|
|
if (adev->ip_blocks[i].funcs->early_init) {
|
|
r = adev->ip_blocks[i].funcs->early_init((void *)adev);
|
|
if (r == -ENOENT) {
|
|
adev->ip_block_status[i].valid = false;
|
|
} else if (r) {
|
|
DRM_ERROR("early_init %d failed %d\n", i, r);
|
|
return r;
|
|
} else {
|
|
adev->ip_block_status[i].valid = true;
|
|
}
|
|
} else {
|
|
adev->ip_block_status[i].valid = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int amdgpu_init(struct amdgpu_device *adev)
|
|
{
|
|
int i, r;
|
|
|
|
for (i = 0; i < adev->num_ip_blocks; i++) {
|
|
if (!adev->ip_block_status[i].valid)
|
|
continue;
|
|
r = adev->ip_blocks[i].funcs->sw_init((void *)adev);
|
|
if (r) {
|
|
DRM_ERROR("sw_init %d failed %d\n", i, r);
|
|
return r;
|
|
}
|
|
adev->ip_block_status[i].sw = true;
|
|
/* need to do gmc hw init early so we can allocate gpu mem */
|
|
if (adev->ip_blocks[i].type == AMD_IP_BLOCK_TYPE_GMC) {
|
|
r = amdgpu_vram_scratch_init(adev);
|
|
if (r) {
|
|
DRM_ERROR("amdgpu_vram_scratch_init failed %d\n", r);
|
|
return r;
|
|
}
|
|
r = adev->ip_blocks[i].funcs->hw_init((void *)adev);
|
|
if (r) {
|
|
DRM_ERROR("hw_init %d failed %d\n", i, r);
|
|
return r;
|
|
}
|
|
r = amdgpu_wb_init(adev);
|
|
if (r) {
|
|
DRM_ERROR("amdgpu_wb_init failed %d\n", r);
|
|
return r;
|
|
}
|
|
adev->ip_block_status[i].hw = true;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < adev->num_ip_blocks; i++) {
|
|
if (!adev->ip_block_status[i].sw)
|
|
continue;
|
|
/* gmc hw init is done early */
|
|
if (adev->ip_blocks[i].type == AMD_IP_BLOCK_TYPE_GMC)
|
|
continue;
|
|
r = adev->ip_blocks[i].funcs->hw_init((void *)adev);
|
|
if (r) {
|
|
DRM_ERROR("hw_init %d failed %d\n", i, r);
|
|
return r;
|
|
}
|
|
adev->ip_block_status[i].hw = true;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int amdgpu_late_init(struct amdgpu_device *adev)
|
|
{
|
|
int i = 0, r;
|
|
|
|
for (i = 0; i < adev->num_ip_blocks; i++) {
|
|
if (!adev->ip_block_status[i].valid)
|
|
continue;
|
|
/* enable clockgating to save power */
|
|
r = adev->ip_blocks[i].funcs->set_clockgating_state((void *)adev,
|
|
AMD_CG_STATE_GATE);
|
|
if (r) {
|
|
DRM_ERROR("set_clockgating_state(gate) %d failed %d\n", i, r);
|
|
return r;
|
|
}
|
|
if (adev->ip_blocks[i].funcs->late_init) {
|
|
r = adev->ip_blocks[i].funcs->late_init((void *)adev);
|
|
if (r) {
|
|
DRM_ERROR("late_init %d failed %d\n", i, r);
|
|
return r;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int amdgpu_fini(struct amdgpu_device *adev)
|
|
{
|
|
int i, r;
|
|
|
|
for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
|
|
if (!adev->ip_block_status[i].hw)
|
|
continue;
|
|
if (adev->ip_blocks[i].type == AMD_IP_BLOCK_TYPE_GMC) {
|
|
amdgpu_wb_fini(adev);
|
|
amdgpu_vram_scratch_fini(adev);
|
|
}
|
|
/* ungate blocks before hw fini so that we can shutdown the blocks safely */
|
|
r = adev->ip_blocks[i].funcs->set_clockgating_state((void *)adev,
|
|
AMD_CG_STATE_UNGATE);
|
|
if (r) {
|
|
DRM_ERROR("set_clockgating_state(ungate) %d failed %d\n", i, r);
|
|
return r;
|
|
}
|
|
r = adev->ip_blocks[i].funcs->hw_fini((void *)adev);
|
|
/* XXX handle errors */
|
|
if (r) {
|
|
DRM_DEBUG("hw_fini %d failed %d\n", i, r);
|
|
}
|
|
adev->ip_block_status[i].hw = false;
|
|
}
|
|
|
|
for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
|
|
if (!adev->ip_block_status[i].sw)
|
|
continue;
|
|
r = adev->ip_blocks[i].funcs->sw_fini((void *)adev);
|
|
/* XXX handle errors */
|
|
if (r) {
|
|
DRM_DEBUG("sw_fini %d failed %d\n", i, r);
|
|
}
|
|
adev->ip_block_status[i].sw = false;
|
|
adev->ip_block_status[i].valid = false;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int amdgpu_suspend(struct amdgpu_device *adev)
|
|
{
|
|
int i, r;
|
|
|
|
for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
|
|
if (!adev->ip_block_status[i].valid)
|
|
continue;
|
|
/* ungate blocks so that suspend can properly shut them down */
|
|
r = adev->ip_blocks[i].funcs->set_clockgating_state((void *)adev,
|
|
AMD_CG_STATE_UNGATE);
|
|
if (r) {
|
|
DRM_ERROR("set_clockgating_state(ungate) %d failed %d\n", i, r);
|
|
}
|
|
/* XXX handle errors */
|
|
r = adev->ip_blocks[i].funcs->suspend(adev);
|
|
/* XXX handle errors */
|
|
if (r) {
|
|
DRM_ERROR("suspend %d failed %d\n", i, r);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int amdgpu_resume(struct amdgpu_device *adev)
|
|
{
|
|
int i, r;
|
|
|
|
for (i = 0; i < adev->num_ip_blocks; i++) {
|
|
if (!adev->ip_block_status[i].valid)
|
|
continue;
|
|
r = adev->ip_blocks[i].funcs->resume(adev);
|
|
if (r) {
|
|
DRM_ERROR("resume %d failed %d\n", i, r);
|
|
return r;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* amdgpu_device_init - initialize the driver
|
|
*
|
|
* @adev: amdgpu_device pointer
|
|
* @pdev: drm dev pointer
|
|
* @pdev: pci dev pointer
|
|
* @flags: driver flags
|
|
*
|
|
* Initializes the driver info and hw (all asics).
|
|
* Returns 0 for success or an error on failure.
|
|
* Called at driver startup.
|
|
*/
|
|
int amdgpu_device_init(struct amdgpu_device *adev,
|
|
struct drm_device *ddev,
|
|
struct pci_dev *pdev,
|
|
uint32_t flags)
|
|
{
|
|
int r, i;
|
|
bool runtime = false;
|
|
|
|
adev->shutdown = false;
|
|
adev->dev = &pdev->dev;
|
|
adev->ddev = ddev;
|
|
adev->pdev = pdev;
|
|
adev->flags = flags;
|
|
adev->asic_type = flags & AMD_ASIC_MASK;
|
|
adev->is_atom_bios = false;
|
|
adev->usec_timeout = AMDGPU_MAX_USEC_TIMEOUT;
|
|
adev->mc.gtt_size = 512 * 1024 * 1024;
|
|
adev->accel_working = false;
|
|
adev->num_rings = 0;
|
|
adev->mman.buffer_funcs = NULL;
|
|
adev->mman.buffer_funcs_ring = NULL;
|
|
adev->vm_manager.vm_pte_funcs = NULL;
|
|
adev->vm_manager.vm_pte_num_rings = 0;
|
|
adev->gart.gart_funcs = NULL;
|
|
adev->fence_context = fence_context_alloc(AMDGPU_MAX_RINGS);
|
|
|
|
adev->smc_rreg = &amdgpu_invalid_rreg;
|
|
adev->smc_wreg = &amdgpu_invalid_wreg;
|
|
adev->pcie_rreg = &amdgpu_invalid_rreg;
|
|
adev->pcie_wreg = &amdgpu_invalid_wreg;
|
|
adev->uvd_ctx_rreg = &amdgpu_invalid_rreg;
|
|
adev->uvd_ctx_wreg = &amdgpu_invalid_wreg;
|
|
adev->didt_rreg = &amdgpu_invalid_rreg;
|
|
adev->didt_wreg = &amdgpu_invalid_wreg;
|
|
adev->audio_endpt_rreg = &amdgpu_block_invalid_rreg;
|
|
adev->audio_endpt_wreg = &amdgpu_block_invalid_wreg;
|
|
|
|
DRM_INFO("initializing kernel modesetting (%s 0x%04X:0x%04X 0x%04X:0x%04X 0x%02X).\n",
|
|
amdgpu_asic_name[adev->asic_type], pdev->vendor, pdev->device,
|
|
pdev->subsystem_vendor, pdev->subsystem_device, pdev->revision);
|
|
|
|
/* mutex initialization are all done here so we
|
|
* can recall function without having locking issues */
|
|
mutex_init(&adev->vm_manager.lock);
|
|
atomic_set(&adev->irq.ih.lock, 0);
|
|
mutex_init(&adev->pm.mutex);
|
|
mutex_init(&adev->gfx.gpu_clock_mutex);
|
|
mutex_init(&adev->srbm_mutex);
|
|
mutex_init(&adev->grbm_idx_mutex);
|
|
mutex_init(&adev->mn_lock);
|
|
hash_init(adev->mn_hash);
|
|
|
|
amdgpu_check_arguments(adev);
|
|
|
|
/* Registers mapping */
|
|
/* TODO: block userspace mapping of io register */
|
|
spin_lock_init(&adev->mmio_idx_lock);
|
|
spin_lock_init(&adev->smc_idx_lock);
|
|
spin_lock_init(&adev->pcie_idx_lock);
|
|
spin_lock_init(&adev->uvd_ctx_idx_lock);
|
|
spin_lock_init(&adev->didt_idx_lock);
|
|
spin_lock_init(&adev->audio_endpt_idx_lock);
|
|
|
|
adev->rmmio_base = pci_resource_start(adev->pdev, 5);
|
|
adev->rmmio_size = pci_resource_len(adev->pdev, 5);
|
|
adev->rmmio = ioremap(adev->rmmio_base, adev->rmmio_size);
|
|
if (adev->rmmio == NULL) {
|
|
return -ENOMEM;
|
|
}
|
|
DRM_INFO("register mmio base: 0x%08X\n", (uint32_t)adev->rmmio_base);
|
|
DRM_INFO("register mmio size: %u\n", (unsigned)adev->rmmio_size);
|
|
|
|
/* doorbell bar mapping */
|
|
amdgpu_doorbell_init(adev);
|
|
|
|
/* io port mapping */
|
|
for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
|
|
if (pci_resource_flags(adev->pdev, i) & IORESOURCE_IO) {
|
|
adev->rio_mem_size = pci_resource_len(adev->pdev, i);
|
|
adev->rio_mem = pci_iomap(adev->pdev, i, adev->rio_mem_size);
|
|
break;
|
|
}
|
|
}
|
|
if (adev->rio_mem == NULL)
|
|
DRM_ERROR("Unable to find PCI I/O BAR\n");
|
|
|
|
/* early init functions */
|
|
r = amdgpu_early_init(adev);
|
|
if (r)
|
|
return r;
|
|
|
|
/* if we have > 1 VGA cards, then disable the amdgpu VGA resources */
|
|
/* this will fail for cards that aren't VGA class devices, just
|
|
* ignore it */
|
|
vga_client_register(adev->pdev, adev, NULL, amdgpu_vga_set_decode);
|
|
|
|
if (amdgpu_runtime_pm == 1)
|
|
runtime = true;
|
|
if (amdgpu_device_is_px(ddev))
|
|
runtime = true;
|
|
vga_switcheroo_register_client(adev->pdev, &amdgpu_switcheroo_ops, runtime);
|
|
if (runtime)
|
|
vga_switcheroo_init_domain_pm_ops(adev->dev, &adev->vga_pm_domain);
|
|
|
|
/* Read BIOS */
|
|
if (!amdgpu_get_bios(adev))
|
|
return -EINVAL;
|
|
/* Must be an ATOMBIOS */
|
|
if (!adev->is_atom_bios) {
|
|
dev_err(adev->dev, "Expecting atombios for GPU\n");
|
|
return -EINVAL;
|
|
}
|
|
r = amdgpu_atombios_init(adev);
|
|
if (r) {
|
|
dev_err(adev->dev, "amdgpu_atombios_init failed\n");
|
|
return r;
|
|
}
|
|
|
|
/* See if the asic supports SR-IOV */
|
|
adev->virtualization.supports_sr_iov =
|
|
amdgpu_atombios_has_gpu_virtualization_table(adev);
|
|
|
|
/* Post card if necessary */
|
|
if (!amdgpu_card_posted(adev) ||
|
|
adev->virtualization.supports_sr_iov) {
|
|
if (!adev->bios) {
|
|
dev_err(adev->dev, "Card not posted and no BIOS - ignoring\n");
|
|
return -EINVAL;
|
|
}
|
|
DRM_INFO("GPU not posted. posting now...\n");
|
|
amdgpu_atom_asic_init(adev->mode_info.atom_context);
|
|
}
|
|
|
|
/* Initialize clocks */
|
|
r = amdgpu_atombios_get_clock_info(adev);
|
|
if (r) {
|
|
dev_err(adev->dev, "amdgpu_atombios_get_clock_info failed\n");
|
|
return r;
|
|
}
|
|
/* init i2c buses */
|
|
amdgpu_atombios_i2c_init(adev);
|
|
|
|
/* Fence driver */
|
|
r = amdgpu_fence_driver_init(adev);
|
|
if (r) {
|
|
dev_err(adev->dev, "amdgpu_fence_driver_init failed\n");
|
|
return r;
|
|
}
|
|
|
|
/* init the mode config */
|
|
drm_mode_config_init(adev->ddev);
|
|
|
|
r = amdgpu_init(adev);
|
|
if (r) {
|
|
dev_err(adev->dev, "amdgpu_init failed\n");
|
|
amdgpu_fini(adev);
|
|
return r;
|
|
}
|
|
|
|
adev->accel_working = true;
|
|
|
|
amdgpu_fbdev_init(adev);
|
|
|
|
r = amdgpu_ib_pool_init(adev);
|
|
if (r) {
|
|
dev_err(adev->dev, "IB initialization failed (%d).\n", r);
|
|
return r;
|
|
}
|
|
|
|
r = amdgpu_ib_ring_tests(adev);
|
|
if (r)
|
|
DRM_ERROR("ib ring test failed (%d).\n", r);
|
|
|
|
r = amdgpu_gem_debugfs_init(adev);
|
|
if (r) {
|
|
DRM_ERROR("registering gem debugfs failed (%d).\n", r);
|
|
}
|
|
|
|
r = amdgpu_debugfs_regs_init(adev);
|
|
if (r) {
|
|
DRM_ERROR("registering register debugfs failed (%d).\n", r);
|
|
}
|
|
|
|
if ((amdgpu_testing & 1)) {
|
|
if (adev->accel_working)
|
|
amdgpu_test_moves(adev);
|
|
else
|
|
DRM_INFO("amdgpu: acceleration disabled, skipping move tests\n");
|
|
}
|
|
if ((amdgpu_testing & 2)) {
|
|
if (adev->accel_working)
|
|
amdgpu_test_syncing(adev);
|
|
else
|
|
DRM_INFO("amdgpu: acceleration disabled, skipping sync tests\n");
|
|
}
|
|
if (amdgpu_benchmarking) {
|
|
if (adev->accel_working)
|
|
amdgpu_benchmark(adev, amdgpu_benchmarking);
|
|
else
|
|
DRM_INFO("amdgpu: acceleration disabled, skipping benchmarks\n");
|
|
}
|
|
|
|
/* enable clockgating, etc. after ib tests, etc. since some blocks require
|
|
* explicit gating rather than handling it automatically.
|
|
*/
|
|
r = amdgpu_late_init(adev);
|
|
if (r) {
|
|
dev_err(adev->dev, "amdgpu_late_init failed\n");
|
|
return r;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void amdgpu_debugfs_remove_files(struct amdgpu_device *adev);
|
|
|
|
/**
|
|
* amdgpu_device_fini - tear down the driver
|
|
*
|
|
* @adev: amdgpu_device pointer
|
|
*
|
|
* Tear down the driver info (all asics).
|
|
* Called at driver shutdown.
|
|
*/
|
|
void amdgpu_device_fini(struct amdgpu_device *adev)
|
|
{
|
|
int r;
|
|
|
|
DRM_INFO("amdgpu: finishing device.\n");
|
|
adev->shutdown = true;
|
|
/* evict vram memory */
|
|
amdgpu_bo_evict_vram(adev);
|
|
amdgpu_ib_pool_fini(adev);
|
|
amdgpu_fence_driver_fini(adev);
|
|
amdgpu_fbdev_fini(adev);
|
|
r = amdgpu_fini(adev);
|
|
kfree(adev->ip_block_status);
|
|
adev->ip_block_status = NULL;
|
|
adev->accel_working = false;
|
|
/* free i2c buses */
|
|
amdgpu_i2c_fini(adev);
|
|
amdgpu_atombios_fini(adev);
|
|
kfree(adev->bios);
|
|
adev->bios = NULL;
|
|
vga_switcheroo_unregister_client(adev->pdev);
|
|
vga_client_register(adev->pdev, NULL, NULL, NULL);
|
|
if (adev->rio_mem)
|
|
pci_iounmap(adev->pdev, adev->rio_mem);
|
|
adev->rio_mem = NULL;
|
|
iounmap(adev->rmmio);
|
|
adev->rmmio = NULL;
|
|
amdgpu_doorbell_fini(adev);
|
|
amdgpu_debugfs_regs_cleanup(adev);
|
|
amdgpu_debugfs_remove_files(adev);
|
|
}
|
|
|
|
|
|
/*
|
|
* Suspend & resume.
|
|
*/
|
|
/**
|
|
* amdgpu_suspend_kms - initiate device suspend
|
|
*
|
|
* @pdev: drm dev pointer
|
|
* @state: suspend state
|
|
*
|
|
* Puts the hw in the suspend state (all asics).
|
|
* Returns 0 for success or an error on failure.
|
|
* Called at driver suspend.
|
|
*/
|
|
int amdgpu_suspend_kms(struct drm_device *dev, bool suspend, bool fbcon)
|
|
{
|
|
struct amdgpu_device *adev;
|
|
struct drm_crtc *crtc;
|
|
struct drm_connector *connector;
|
|
int r;
|
|
|
|
if (dev == NULL || dev->dev_private == NULL) {
|
|
return -ENODEV;
|
|
}
|
|
|
|
adev = dev->dev_private;
|
|
|
|
if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
|
|
return 0;
|
|
|
|
drm_kms_helper_poll_disable(dev);
|
|
|
|
/* turn off display hw */
|
|
drm_modeset_lock_all(dev);
|
|
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
|
|
drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
|
|
}
|
|
drm_modeset_unlock_all(dev);
|
|
|
|
/* unpin the front buffers and cursors */
|
|
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
|
|
struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
|
|
struct amdgpu_framebuffer *rfb = to_amdgpu_framebuffer(crtc->primary->fb);
|
|
struct amdgpu_bo *robj;
|
|
|
|
if (amdgpu_crtc->cursor_bo) {
|
|
struct amdgpu_bo *aobj = gem_to_amdgpu_bo(amdgpu_crtc->cursor_bo);
|
|
r = amdgpu_bo_reserve(aobj, false);
|
|
if (r == 0) {
|
|
amdgpu_bo_unpin(aobj);
|
|
amdgpu_bo_unreserve(aobj);
|
|
}
|
|
}
|
|
|
|
if (rfb == NULL || rfb->obj == NULL) {
|
|
continue;
|
|
}
|
|
robj = gem_to_amdgpu_bo(rfb->obj);
|
|
/* don't unpin kernel fb objects */
|
|
if (!amdgpu_fbdev_robj_is_fb(adev, robj)) {
|
|
r = amdgpu_bo_reserve(robj, false);
|
|
if (r == 0) {
|
|
amdgpu_bo_unpin(robj);
|
|
amdgpu_bo_unreserve(robj);
|
|
}
|
|
}
|
|
}
|
|
/* evict vram memory */
|
|
amdgpu_bo_evict_vram(adev);
|
|
|
|
amdgpu_fence_driver_suspend(adev);
|
|
|
|
r = amdgpu_suspend(adev);
|
|
|
|
/* evict remaining vram memory */
|
|
amdgpu_bo_evict_vram(adev);
|
|
|
|
pci_save_state(dev->pdev);
|
|
if (suspend) {
|
|
/* Shut down the device */
|
|
pci_disable_device(dev->pdev);
|
|
pci_set_power_state(dev->pdev, PCI_D3hot);
|
|
}
|
|
|
|
if (fbcon) {
|
|
console_lock();
|
|
amdgpu_fbdev_set_suspend(adev, 1);
|
|
console_unlock();
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* amdgpu_resume_kms - initiate device resume
|
|
*
|
|
* @pdev: drm dev pointer
|
|
*
|
|
* Bring the hw back to operating state (all asics).
|
|
* Returns 0 for success or an error on failure.
|
|
* Called at driver resume.
|
|
*/
|
|
int amdgpu_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
|
|
{
|
|
struct drm_connector *connector;
|
|
struct amdgpu_device *adev = dev->dev_private;
|
|
struct drm_crtc *crtc;
|
|
int r;
|
|
|
|
if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
|
|
return 0;
|
|
|
|
if (fbcon) {
|
|
console_lock();
|
|
}
|
|
if (resume) {
|
|
pci_set_power_state(dev->pdev, PCI_D0);
|
|
pci_restore_state(dev->pdev);
|
|
if (pci_enable_device(dev->pdev)) {
|
|
if (fbcon)
|
|
console_unlock();
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
/* post card */
|
|
amdgpu_atom_asic_init(adev->mode_info.atom_context);
|
|
|
|
r = amdgpu_resume(adev);
|
|
|
|
amdgpu_fence_driver_resume(adev);
|
|
|
|
r = amdgpu_ib_ring_tests(adev);
|
|
if (r)
|
|
DRM_ERROR("ib ring test failed (%d).\n", r);
|
|
|
|
r = amdgpu_late_init(adev);
|
|
if (r)
|
|
return r;
|
|
|
|
/* pin cursors */
|
|
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
|
|
struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
|
|
|
|
if (amdgpu_crtc->cursor_bo) {
|
|
struct amdgpu_bo *aobj = gem_to_amdgpu_bo(amdgpu_crtc->cursor_bo);
|
|
r = amdgpu_bo_reserve(aobj, false);
|
|
if (r == 0) {
|
|
r = amdgpu_bo_pin(aobj,
|
|
AMDGPU_GEM_DOMAIN_VRAM,
|
|
&amdgpu_crtc->cursor_addr);
|
|
if (r != 0)
|
|
DRM_ERROR("Failed to pin cursor BO (%d)\n", r);
|
|
amdgpu_bo_unreserve(aobj);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* blat the mode back in */
|
|
if (fbcon) {
|
|
drm_helper_resume_force_mode(dev);
|
|
/* turn on display hw */
|
|
drm_modeset_lock_all(dev);
|
|
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
|
|
drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
|
|
}
|
|
drm_modeset_unlock_all(dev);
|
|
}
|
|
|
|
drm_kms_helper_poll_enable(dev);
|
|
drm_helper_hpd_irq_event(dev);
|
|
|
|
if (fbcon) {
|
|
amdgpu_fbdev_set_suspend(adev, 0);
|
|
console_unlock();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* amdgpu_gpu_reset - reset the asic
|
|
*
|
|
* @adev: amdgpu device pointer
|
|
*
|
|
* Attempt the reset the GPU if it has hung (all asics).
|
|
* Returns 0 for success or an error on failure.
|
|
*/
|
|
int amdgpu_gpu_reset(struct amdgpu_device *adev)
|
|
{
|
|
unsigned ring_sizes[AMDGPU_MAX_RINGS];
|
|
uint32_t *ring_data[AMDGPU_MAX_RINGS];
|
|
|
|
bool saved = false;
|
|
|
|
int i, r;
|
|
int resched;
|
|
|
|
atomic_inc(&adev->gpu_reset_counter);
|
|
|
|
/* block TTM */
|
|
resched = ttm_bo_lock_delayed_workqueue(&adev->mman.bdev);
|
|
|
|
r = amdgpu_suspend(adev);
|
|
|
|
for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
|
|
struct amdgpu_ring *ring = adev->rings[i];
|
|
if (!ring)
|
|
continue;
|
|
|
|
ring_sizes[i] = amdgpu_ring_backup(ring, &ring_data[i]);
|
|
if (ring_sizes[i]) {
|
|
saved = true;
|
|
dev_info(adev->dev, "Saved %d dwords of commands "
|
|
"on ring %d.\n", ring_sizes[i], i);
|
|
}
|
|
}
|
|
|
|
retry:
|
|
r = amdgpu_asic_reset(adev);
|
|
/* post card */
|
|
amdgpu_atom_asic_init(adev->mode_info.atom_context);
|
|
|
|
if (!r) {
|
|
dev_info(adev->dev, "GPU reset succeeded, trying to resume\n");
|
|
r = amdgpu_resume(adev);
|
|
}
|
|
|
|
if (!r) {
|
|
for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
|
|
struct amdgpu_ring *ring = adev->rings[i];
|
|
if (!ring)
|
|
continue;
|
|
|
|
amdgpu_ring_restore(ring, ring_sizes[i], ring_data[i]);
|
|
ring_sizes[i] = 0;
|
|
ring_data[i] = NULL;
|
|
}
|
|
|
|
r = amdgpu_ib_ring_tests(adev);
|
|
if (r) {
|
|
dev_err(adev->dev, "ib ring test failed (%d).\n", r);
|
|
if (saved) {
|
|
saved = false;
|
|
r = amdgpu_suspend(adev);
|
|
goto retry;
|
|
}
|
|
}
|
|
} else {
|
|
amdgpu_fence_driver_force_completion(adev);
|
|
for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
|
|
if (adev->rings[i])
|
|
kfree(ring_data[i]);
|
|
}
|
|
}
|
|
|
|
drm_helper_resume_force_mode(adev->ddev);
|
|
|
|
ttm_bo_unlock_delayed_workqueue(&adev->mman.bdev, resched);
|
|
if (r) {
|
|
/* bad news, how to tell it to userspace ? */
|
|
dev_info(adev->dev, "GPU reset failed\n");
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
void amdgpu_get_pcie_info(struct amdgpu_device *adev)
|
|
{
|
|
u32 mask;
|
|
int ret;
|
|
|
|
if (pci_is_root_bus(adev->pdev->bus))
|
|
return;
|
|
|
|
if (amdgpu_pcie_gen2 == 0)
|
|
return;
|
|
|
|
if (adev->flags & AMD_IS_APU)
|
|
return;
|
|
|
|
ret = drm_pcie_get_speed_cap_mask(adev->ddev, &mask);
|
|
if (!ret) {
|
|
adev->pm.pcie_gen_mask = (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
|
|
CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 |
|
|
CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3);
|
|
|
|
if (mask & DRM_PCIE_SPEED_25)
|
|
adev->pm.pcie_gen_mask |= CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1;
|
|
if (mask & DRM_PCIE_SPEED_50)
|
|
adev->pm.pcie_gen_mask |= CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2;
|
|
if (mask & DRM_PCIE_SPEED_80)
|
|
adev->pm.pcie_gen_mask |= CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3;
|
|
}
|
|
ret = drm_pcie_get_max_link_width(adev->ddev, &mask);
|
|
if (!ret) {
|
|
switch (mask) {
|
|
case 32:
|
|
adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X32 |
|
|
CAIL_PCIE_LINK_WIDTH_SUPPORT_X16 |
|
|
CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
|
|
CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
|
|
CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
|
|
CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
|
|
CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
|
|
break;
|
|
case 16:
|
|
adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X16 |
|
|
CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
|
|
CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
|
|
CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
|
|
CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
|
|
CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
|
|
break;
|
|
case 12:
|
|
adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
|
|
CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
|
|
CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
|
|
CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
|
|
CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
|
|
break;
|
|
case 8:
|
|
adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
|
|
CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
|
|
CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
|
|
CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
|
|
break;
|
|
case 4:
|
|
adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
|
|
CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
|
|
CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
|
|
break;
|
|
case 2:
|
|
adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
|
|
CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
|
|
break;
|
|
case 1:
|
|
adev->pm.pcie_mlw_mask = CAIL_PCIE_LINK_WIDTH_SUPPORT_X1;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Debugfs
|
|
*/
|
|
int amdgpu_debugfs_add_files(struct amdgpu_device *adev,
|
|
struct drm_info_list *files,
|
|
unsigned nfiles)
|
|
{
|
|
unsigned i;
|
|
|
|
for (i = 0; i < adev->debugfs_count; i++) {
|
|
if (adev->debugfs[i].files == files) {
|
|
/* Already registered */
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
i = adev->debugfs_count + 1;
|
|
if (i > AMDGPU_DEBUGFS_MAX_COMPONENTS) {
|
|
DRM_ERROR("Reached maximum number of debugfs components.\n");
|
|
DRM_ERROR("Report so we increase "
|
|
"AMDGPU_DEBUGFS_MAX_COMPONENTS.\n");
|
|
return -EINVAL;
|
|
}
|
|
adev->debugfs[adev->debugfs_count].files = files;
|
|
adev->debugfs[adev->debugfs_count].num_files = nfiles;
|
|
adev->debugfs_count = i;
|
|
#if defined(CONFIG_DEBUG_FS)
|
|
drm_debugfs_create_files(files, nfiles,
|
|
adev->ddev->control->debugfs_root,
|
|
adev->ddev->control);
|
|
drm_debugfs_create_files(files, nfiles,
|
|
adev->ddev->primary->debugfs_root,
|
|
adev->ddev->primary);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
static void amdgpu_debugfs_remove_files(struct amdgpu_device *adev)
|
|
{
|
|
#if defined(CONFIG_DEBUG_FS)
|
|
unsigned i;
|
|
|
|
for (i = 0; i < adev->debugfs_count; i++) {
|
|
drm_debugfs_remove_files(adev->debugfs[i].files,
|
|
adev->debugfs[i].num_files,
|
|
adev->ddev->control);
|
|
drm_debugfs_remove_files(adev->debugfs[i].files,
|
|
adev->debugfs[i].num_files,
|
|
adev->ddev->primary);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
#if defined(CONFIG_DEBUG_FS)
|
|
|
|
static ssize_t amdgpu_debugfs_regs_read(struct file *f, char __user *buf,
|
|
size_t size, loff_t *pos)
|
|
{
|
|
struct amdgpu_device *adev = f->f_inode->i_private;
|
|
ssize_t result = 0;
|
|
int r;
|
|
|
|
if (size & 0x3 || *pos & 0x3)
|
|
return -EINVAL;
|
|
|
|
while (size) {
|
|
uint32_t value;
|
|
|
|
if (*pos > adev->rmmio_size)
|
|
return result;
|
|
|
|
value = RREG32(*pos >> 2);
|
|
r = put_user(value, (uint32_t *)buf);
|
|
if (r)
|
|
return r;
|
|
|
|
result += 4;
|
|
buf += 4;
|
|
*pos += 4;
|
|
size -= 4;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static ssize_t amdgpu_debugfs_regs_write(struct file *f, const char __user *buf,
|
|
size_t size, loff_t *pos)
|
|
{
|
|
struct amdgpu_device *adev = f->f_inode->i_private;
|
|
ssize_t result = 0;
|
|
int r;
|
|
|
|
if (size & 0x3 || *pos & 0x3)
|
|
return -EINVAL;
|
|
|
|
while (size) {
|
|
uint32_t value;
|
|
|
|
if (*pos > adev->rmmio_size)
|
|
return result;
|
|
|
|
r = get_user(value, (uint32_t *)buf);
|
|
if (r)
|
|
return r;
|
|
|
|
WREG32(*pos >> 2, value);
|
|
|
|
result += 4;
|
|
buf += 4;
|
|
*pos += 4;
|
|
size -= 4;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static const struct file_operations amdgpu_debugfs_regs_fops = {
|
|
.owner = THIS_MODULE,
|
|
.read = amdgpu_debugfs_regs_read,
|
|
.write = amdgpu_debugfs_regs_write,
|
|
.llseek = default_llseek
|
|
};
|
|
|
|
static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev)
|
|
{
|
|
struct drm_minor *minor = adev->ddev->primary;
|
|
struct dentry *ent, *root = minor->debugfs_root;
|
|
|
|
ent = debugfs_create_file("amdgpu_regs", S_IFREG | S_IRUGO, root,
|
|
adev, &amdgpu_debugfs_regs_fops);
|
|
if (IS_ERR(ent))
|
|
return PTR_ERR(ent);
|
|
i_size_write(ent->d_inode, adev->rmmio_size);
|
|
adev->debugfs_regs = ent;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void amdgpu_debugfs_regs_cleanup(struct amdgpu_device *adev)
|
|
{
|
|
debugfs_remove(adev->debugfs_regs);
|
|
adev->debugfs_regs = NULL;
|
|
}
|
|
|
|
int amdgpu_debugfs_init(struct drm_minor *minor)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void amdgpu_debugfs_cleanup(struct drm_minor *minor)
|
|
{
|
|
}
|
|
#else
|
|
static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev)
|
|
{
|
|
return 0;
|
|
}
|
|
static void amdgpu_debugfs_regs_cleanup(struct amdgpu_device *adev) { }
|
|
#endif
|