diff options
author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-07-26 14:23:10 +0300 |
---|---|---|
committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-07-26 14:43:33 +0300 |
commit | af055598542670c8533a58582813b1419949cae0 (patch) | |
tree | 901fa1bf635d5c1e91d08f9f4c2e4943516dbb71 /drivers/ntb/hw/amd/ntb_hw_amd.c | |
parent | 9f15a4ab19ab33658dbc9fd37be5210e8c1ac622 (diff) | |
parent | 2d62c799f8ffac4f7ffba6a4e7f148827dfc24c7 (diff) | |
download | linux-af055598542670c8533a58582813b1419949cae0.tar.xz |
Merge airlied/drm-next into drm-misc-next
I need this to be able to apply the deferred fbdev setup patches, I
need the relevant prep work that landed through the drm-intel tree.
Also squash in conflict fixup from Laurent Pinchart.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/ntb/hw/amd/ntb_hw_amd.c')
-rw-r--r-- | drivers/ntb/hw/amd/ntb_hw_amd.c | 139 |
1 files changed, 88 insertions, 51 deletions
diff --git a/drivers/ntb/hw/amd/ntb_hw_amd.c b/drivers/ntb/hw/amd/ntb_hw_amd.c index 019a158e1128..f0788aae05c9 100644 --- a/drivers/ntb/hw/amd/ntb_hw_amd.c +++ b/drivers/ntb/hw/amd/ntb_hw_amd.c @@ -5,6 +5,7 @@ * GPL LICENSE SUMMARY * * Copyright (C) 2016 Advanced Micro Devices, Inc. All Rights Reserved. + * Copyright (C) 2016 T-Platforms. All Rights Reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -13,6 +14,7 @@ * BSD LICENSE * * Copyright (C) 2016 Advanced Micro Devices, Inc. All Rights Reserved. + * Copyright (C) 2016 T-Platforms. All Rights Reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -79,40 +81,42 @@ static int ndev_mw_to_bar(struct amd_ntb_dev *ndev, int idx) return 1 << idx; } -static int amd_ntb_mw_count(struct ntb_dev *ntb) +static int amd_ntb_mw_count(struct ntb_dev *ntb, int pidx) { + if (pidx != NTB_DEF_PEER_IDX) + return -EINVAL; + return ntb_ndev(ntb)->mw_count; } -static int amd_ntb_mw_get_range(struct ntb_dev *ntb, int idx, - phys_addr_t *base, - resource_size_t *size, - resource_size_t *align, - resource_size_t *align_size) +static int amd_ntb_mw_get_align(struct ntb_dev *ntb, int pidx, int idx, + resource_size_t *addr_align, + resource_size_t *size_align, + resource_size_t *size_max) { struct amd_ntb_dev *ndev = ntb_ndev(ntb); int bar; + if (pidx != NTB_DEF_PEER_IDX) + return -EINVAL; + bar = ndev_mw_to_bar(ndev, idx); if (bar < 0) return bar; - if (base) - *base = pci_resource_start(ndev->ntb.pdev, bar); - - if (size) - *size = pci_resource_len(ndev->ntb.pdev, bar); + if (addr_align) + *addr_align = SZ_4K; - if (align) - *align = SZ_4K; + if (size_align) + *size_align = 1; - if (align_size) - *align_size = 1; + if (size_max) + *size_max = pci_resource_len(ndev->ntb.pdev, bar); return 0; } -static int amd_ntb_mw_set_trans(struct ntb_dev *ntb, int idx, +static int amd_ntb_mw_set_trans(struct ntb_dev *ntb, int pidx, int idx, dma_addr_t addr, resource_size_t size) { struct amd_ntb_dev *ndev = ntb_ndev(ntb); @@ -122,11 +126,14 @@ static int amd_ntb_mw_set_trans(struct ntb_dev *ntb, int idx, u64 base_addr, limit, reg_val; int bar; + if (pidx != NTB_DEF_PEER_IDX) + return -EINVAL; + bar = ndev_mw_to_bar(ndev, idx); if (bar < 0) return bar; - mw_size = pci_resource_len(ndev->ntb.pdev, bar); + mw_size = pci_resource_len(ntb->pdev, bar); /* make sure the range fits in the usable mw size */ if (size > mw_size) @@ -135,7 +142,7 @@ static int amd_ntb_mw_set_trans(struct ntb_dev *ntb, int idx, mmio = ndev->self_mmio; peer_mmio = ndev->peer_mmio; - base_addr = pci_resource_start(ndev->ntb.pdev, bar); + base_addr = pci_resource_start(ntb->pdev, bar); if (bar != 1) { xlat_reg = AMD_BAR23XLAT_OFFSET + ((bar - 2) << 2); @@ -212,7 +219,7 @@ static int amd_link_is_up(struct amd_ntb_dev *ndev) return 0; } -static int amd_ntb_link_is_up(struct ntb_dev *ntb, +static u64 amd_ntb_link_is_up(struct ntb_dev *ntb, enum ntb_speed *speed, enum ntb_width *width) { @@ -225,7 +232,7 @@ static int amd_ntb_link_is_up(struct ntb_dev *ntb, if (width) *width = NTB_LNK_STA_WIDTH(ndev->lnk_sta); - dev_dbg(ndev_dev(ndev), "link is up.\n"); + dev_dbg(&ntb->pdev->dev, "link is up.\n"); ret = 1; } else { @@ -234,7 +241,7 @@ static int amd_ntb_link_is_up(struct ntb_dev *ntb, if (width) *width = NTB_WIDTH_NONE; - dev_dbg(ndev_dev(ndev), "link is down.\n"); + dev_dbg(&ntb->pdev->dev, "link is down.\n"); } return ret; @@ -254,7 +261,7 @@ static int amd_ntb_link_enable(struct ntb_dev *ntb, if (ndev->ntb.topo == NTB_TOPO_SEC) return -EINVAL; - dev_dbg(ndev_dev(ndev), "Enabling Link.\n"); + dev_dbg(&ntb->pdev->dev, "Enabling Link.\n"); ntb_ctl = readl(mmio + AMD_CNTL_OFFSET); ntb_ctl |= (PMM_REG_CTL | SMM_REG_CTL); @@ -275,7 +282,7 @@ static int amd_ntb_link_disable(struct ntb_dev *ntb) if (ndev->ntb.topo == NTB_TOPO_SEC) return -EINVAL; - dev_dbg(ndev_dev(ndev), "Enabling Link.\n"); + dev_dbg(&ntb->pdev->dev, "Enabling Link.\n"); ntb_ctl = readl(mmio + AMD_CNTL_OFFSET); ntb_ctl &= ~(PMM_REG_CTL | SMM_REG_CTL); @@ -284,6 +291,31 @@ static int amd_ntb_link_disable(struct ntb_dev *ntb) return 0; } +static int amd_ntb_peer_mw_count(struct ntb_dev *ntb) +{ + /* The same as for inbound MWs */ + return ntb_ndev(ntb)->mw_count; +} + +static int amd_ntb_peer_mw_get_addr(struct ntb_dev *ntb, int idx, + phys_addr_t *base, resource_size_t *size) +{ + struct amd_ntb_dev *ndev = ntb_ndev(ntb); + int bar; + + bar = ndev_mw_to_bar(ndev, idx); + if (bar < 0) + return bar; + + if (base) + *base = pci_resource_start(ndev->ntb.pdev, bar); + + if (size) + *size = pci_resource_len(ndev->ntb.pdev, bar); + + return 0; +} + static u64 amd_ntb_db_valid_mask(struct ntb_dev *ntb) { return ntb_ndev(ntb)->db_valid_mask; @@ -400,30 +432,30 @@ static int amd_ntb_spad_write(struct ntb_dev *ntb, return 0; } -static u32 amd_ntb_peer_spad_read(struct ntb_dev *ntb, int idx) +static u32 amd_ntb_peer_spad_read(struct ntb_dev *ntb, int pidx, int sidx) { struct amd_ntb_dev *ndev = ntb_ndev(ntb); void __iomem *mmio = ndev->self_mmio; u32 offset; - if (idx < 0 || idx >= ndev->spad_count) + if (sidx < 0 || sidx >= ndev->spad_count) return -EINVAL; - offset = ndev->peer_spad + (idx << 2); + offset = ndev->peer_spad + (sidx << 2); return readl(mmio + AMD_SPAD_OFFSET + offset); } -static int amd_ntb_peer_spad_write(struct ntb_dev *ntb, - int idx, u32 val) +static int amd_ntb_peer_spad_write(struct ntb_dev *ntb, int pidx, + int sidx, u32 val) { struct amd_ntb_dev *ndev = ntb_ndev(ntb); void __iomem *mmio = ndev->self_mmio; u32 offset; - if (idx < 0 || idx >= ndev->spad_count) + if (sidx < 0 || sidx >= ndev->spad_count) return -EINVAL; - offset = ndev->peer_spad + (idx << 2); + offset = ndev->peer_spad + (sidx << 2); writel(val, mmio + AMD_SPAD_OFFSET + offset); return 0; @@ -431,8 +463,10 @@ static int amd_ntb_peer_spad_write(struct ntb_dev *ntb, static const struct ntb_dev_ops amd_ntb_ops = { .mw_count = amd_ntb_mw_count, - .mw_get_range = amd_ntb_mw_get_range, + .mw_get_align = amd_ntb_mw_get_align, .mw_set_trans = amd_ntb_mw_set_trans, + .peer_mw_count = amd_ntb_peer_mw_count, + .peer_mw_get_addr = amd_ntb_peer_mw_get_addr, .link_is_up = amd_ntb_link_is_up, .link_enable = amd_ntb_link_enable, .link_disable = amd_ntb_link_disable, @@ -466,18 +500,19 @@ static void amd_ack_smu(struct amd_ntb_dev *ndev, u32 bit) static void amd_handle_event(struct amd_ntb_dev *ndev, int vec) { void __iomem *mmio = ndev->self_mmio; + struct device *dev = &ndev->ntb.pdev->dev; u32 status; status = readl(mmio + AMD_INTSTAT_OFFSET); if (!(status & AMD_EVENT_INTMASK)) return; - dev_dbg(ndev_dev(ndev), "status = 0x%x and vec = %d\n", status, vec); + dev_dbg(dev, "status = 0x%x and vec = %d\n", status, vec); status &= AMD_EVENT_INTMASK; switch (status) { case AMD_PEER_FLUSH_EVENT: - dev_info(ndev_dev(ndev), "Flush is done.\n"); + dev_info(dev, "Flush is done.\n"); break; case AMD_PEER_RESET_EVENT: amd_ack_smu(ndev, AMD_PEER_RESET_EVENT); @@ -503,7 +538,7 @@ static void amd_handle_event(struct amd_ntb_dev *ndev, int vec) status = readl(mmio + AMD_PMESTAT_OFFSET); /* check if this is WAKEUP event */ if (status & 0x1) - dev_info(ndev_dev(ndev), "Wakeup is done.\n"); + dev_info(dev, "Wakeup is done.\n"); amd_ack_smu(ndev, AMD_PEER_D0_EVENT); @@ -512,14 +547,14 @@ static void amd_handle_event(struct amd_ntb_dev *ndev, int vec) AMD_LINK_HB_TIMEOUT); break; default: - dev_info(ndev_dev(ndev), "event status = 0x%x.\n", status); + dev_info(dev, "event status = 0x%x.\n", status); break; } } static irqreturn_t ndev_interrupt(struct amd_ntb_dev *ndev, int vec) { - dev_dbg(ndev_dev(ndev), "vec %d\n", vec); + dev_dbg(&ndev->ntb.pdev->dev, "vec %d\n", vec); if (vec > (AMD_DB_CNT - 1) || (ndev->msix_vec_count == 1)) amd_handle_event(ndev, vec); @@ -541,7 +576,7 @@ static irqreturn_t ndev_irq_isr(int irq, void *dev) { struct amd_ntb_dev *ndev = dev; - return ndev_interrupt(ndev, irq - ndev_pdev(ndev)->irq); + return ndev_interrupt(ndev, irq - ndev->ntb.pdev->irq); } static int ndev_init_isr(struct amd_ntb_dev *ndev, @@ -550,7 +585,7 @@ static int ndev_init_isr(struct amd_ntb_dev *ndev, struct pci_dev *pdev; int rc, i, msix_count, node; - pdev = ndev_pdev(ndev); + pdev = ndev->ntb.pdev; node = dev_to_node(&pdev->dev); @@ -592,7 +627,7 @@ static int ndev_init_isr(struct amd_ntb_dev *ndev, goto err_msix_request; } - dev_dbg(ndev_dev(ndev), "Using msix interrupts\n"); + dev_dbg(&pdev->dev, "Using msix interrupts\n"); ndev->db_count = msix_min; ndev->msix_vec_count = msix_max; return 0; @@ -619,7 +654,7 @@ err_msix_vec_alloc: if (rc) goto err_msi_request; - dev_dbg(ndev_dev(ndev), "Using msi interrupts\n"); + dev_dbg(&pdev->dev, "Using msi interrupts\n"); ndev->db_count = 1; ndev->msix_vec_count = 1; return 0; @@ -636,7 +671,7 @@ err_msi_enable: if (rc) goto err_intx_request; - dev_dbg(ndev_dev(ndev), "Using intx interrupts\n"); + dev_dbg(&pdev->dev, "Using intx interrupts\n"); ndev->db_count = 1; ndev->msix_vec_count = 1; return 0; @@ -651,7 +686,7 @@ static void ndev_deinit_isr(struct amd_ntb_dev *ndev) void __iomem *mmio = ndev->self_mmio; int i; - pdev = ndev_pdev(ndev); + pdev = ndev->ntb.pdev; /* Mask all doorbell interrupts */ ndev->db_mask = ndev->db_valid_mask; @@ -777,7 +812,8 @@ static void ndev_init_debugfs(struct amd_ntb_dev *ndev) ndev->debugfs_info = NULL; } else { ndev->debugfs_dir = - debugfs_create_dir(ndev_name(ndev), debugfs_dir); + debugfs_create_dir(pci_name(ndev->ntb.pdev), + debugfs_dir); if (!ndev->debugfs_dir) ndev->debugfs_info = NULL; else @@ -812,7 +848,7 @@ static int amd_poll_link(struct amd_ntb_dev *ndev) reg = readl(mmio + AMD_SIDEINFO_OFFSET); reg &= NTB_LIN_STA_ACTIVE_BIT; - dev_dbg(ndev_dev(ndev), "%s: reg_val = 0x%x.\n", __func__, reg); + dev_dbg(&ndev->ntb.pdev->dev, "%s: reg_val = 0x%x.\n", __func__, reg); if (reg == ndev->cntl_sta) return 0; @@ -894,7 +930,8 @@ static int amd_init_ntb(struct amd_ntb_dev *ndev) break; default: - dev_err(ndev_dev(ndev), "AMD NTB does not support B2B mode.\n"); + dev_err(&ndev->ntb.pdev->dev, + "AMD NTB does not support B2B mode.\n"); return -EINVAL; } @@ -923,10 +960,10 @@ static int amd_init_dev(struct amd_ntb_dev *ndev) struct pci_dev *pdev; int rc = 0; - pdev = ndev_pdev(ndev); + pdev = ndev->ntb.pdev; ndev->ntb.topo = amd_get_topo(ndev); - dev_dbg(ndev_dev(ndev), "AMD NTB topo is %s\n", + dev_dbg(&pdev->dev, "AMD NTB topo is %s\n", ntb_topo_string(ndev->ntb.topo)); rc = amd_init_ntb(ndev); @@ -935,7 +972,7 @@ static int amd_init_dev(struct amd_ntb_dev *ndev) rc = amd_init_isr(ndev); if (rc) { - dev_err(ndev_dev(ndev), "fail to init isr.\n"); + dev_err(&pdev->dev, "fail to init isr.\n"); return rc; } @@ -973,7 +1010,7 @@ static int amd_ntb_init_pci(struct amd_ntb_dev *ndev, rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); if (rc) goto err_dma_mask; - dev_warn(ndev_dev(ndev), "Cannot DMA highmem\n"); + dev_warn(&pdev->dev, "Cannot DMA highmem\n"); } rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); @@ -981,7 +1018,7 @@ static int amd_ntb_init_pci(struct amd_ntb_dev *ndev, rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); if (rc) goto err_dma_mask; - dev_warn(ndev_dev(ndev), "Cannot DMA consistent highmem\n"); + dev_warn(&pdev->dev, "Cannot DMA consistent highmem\n"); } ndev->self_mmio = pci_iomap(pdev, 0, 0); @@ -1004,7 +1041,7 @@ err_pci_enable: static void amd_ntb_deinit_pci(struct amd_ntb_dev *ndev) { - struct pci_dev *pdev = ndev_pdev(ndev); + struct pci_dev *pdev = ndev->ntb.pdev; pci_iounmap(pdev, ndev->self_mmio); |