From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- drivers/gpu/drm/ast/ast_main.c | 478 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 478 insertions(+) create mode 100644 drivers/gpu/drm/ast/ast_main.c (limited to 'drivers/gpu/drm/ast/ast_main.c') diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c new file mode 100644 index 000000000..bffa310a0 --- /dev/null +++ b/drivers/gpu/drm/ast/ast_main.c @@ -0,0 +1,478 @@ +/* + * Copyright 2012 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + */ +/* + * Authors: Dave Airlie + */ + +#include + +#include +#include +#include +#include +#include + +#include "ast_drv.h" + +void ast_set_index_reg_mask(struct ast_private *ast, + uint32_t base, uint8_t index, + uint8_t mask, uint8_t val) +{ + u8 tmp; + ast_io_write8(ast, base, index); + tmp = (ast_io_read8(ast, base + 1) & mask) | val; + ast_set_index_reg(ast, base, index, tmp); +} + +uint8_t ast_get_index_reg(struct ast_private *ast, + uint32_t base, uint8_t index) +{ + uint8_t ret; + ast_io_write8(ast, base, index); + ret = ast_io_read8(ast, base + 1); + return ret; +} + +uint8_t ast_get_index_reg_mask(struct ast_private *ast, + uint32_t base, uint8_t index, uint8_t mask) +{ + uint8_t ret; + ast_io_write8(ast, base, index); + ret = ast_io_read8(ast, base + 1) & mask; + return ret; +} + +static void ast_detect_config_mode(struct drm_device *dev, u32 *scu_rev) +{ + struct device_node *np = dev->dev->of_node; + struct ast_private *ast = to_ast_private(dev); + struct pci_dev *pdev = to_pci_dev(dev->dev); + uint32_t data, jregd0, jregd1; + + /* Defaults */ + ast->config_mode = ast_use_defaults; + *scu_rev = 0xffffffff; + + /* Check if we have device-tree properties */ + if (np && !of_property_read_u32(np, "aspeed,scu-revision-id", + scu_rev)) { + /* We do, disable P2A access */ + ast->config_mode = ast_use_dt; + drm_info(dev, "Using device-tree for configuration\n"); + return; + } + + /* Not all families have a P2A bridge */ + if (pdev->device != PCI_CHIP_AST2000) + return; + + /* + * The BMC will set SCU 0x40 D[12] to 1 if the P2 bridge + * is disabled. We force using P2A if VGA only mode bit + * is set D[7] + */ + jregd0 = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd0, 0xff); + jregd1 = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd1, 0xff); + if (!(jregd0 & 0x80) || !(jregd1 & 0x10)) { + /* Patch AST2500 */ + if (((pdev->revision & 0xF0) == 0x40) + && ((jregd0 & AST_VRAM_INIT_STATUS_MASK) == 0)) + ast_patch_ahb_2500(ast); + + /* Double check it's actually working */ + data = ast_read32(ast, 0xf004); + if ((data != 0xFFFFFFFF) && (data != 0x00)) { + /* P2A works, grab silicon revision */ + ast->config_mode = ast_use_p2a; + + drm_info(dev, "Using P2A bridge for configuration\n"); + + /* Read SCU7c (silicon revision register) */ + ast_write32(ast, 0xf004, 0x1e6e0000); + ast_write32(ast, 0xf000, 0x1); + *scu_rev = ast_read32(ast, 0x1207c); + return; + } + } + + /* We have a P2A bridge but it's disabled */ + drm_info(dev, "P2A bridge disabled, using default configuration\n"); +} + +static int ast_detect_chip(struct drm_device *dev, bool *need_post) +{ + struct ast_private *ast = to_ast_private(dev); + struct pci_dev *pdev = to_pci_dev(dev->dev); + uint32_t jreg, scu_rev; + + /* + * If VGA isn't enabled, we need to enable now or subsequent + * access to the scratch registers will fail. We also inform + * our caller that it needs to POST the chip + * (Assumption: VGA not enabled -> need to POST) + */ + if (!ast_is_vga_enabled(dev)) { + ast_enable_vga(dev); + drm_info(dev, "VGA not enabled on entry, requesting chip POST\n"); + *need_post = true; + } else + *need_post = false; + + + /* Enable extended register access */ + ast_open_key(ast); + ast_enable_mmio(dev); + + /* Find out whether P2A works or whether to use device-tree */ + ast_detect_config_mode(dev, &scu_rev); + + /* Identify chipset */ + if (pdev->revision >= 0x50) { + ast->chip = AST2600; + drm_info(dev, "AST 2600 detected\n"); + } else if (pdev->revision >= 0x40) { + ast->chip = AST2500; + drm_info(dev, "AST 2500 detected\n"); + } else if (pdev->revision >= 0x30) { + ast->chip = AST2400; + drm_info(dev, "AST 2400 detected\n"); + } else if (pdev->revision >= 0x20) { + ast->chip = AST2300; + drm_info(dev, "AST 2300 detected\n"); + } else if (pdev->revision >= 0x10) { + switch (scu_rev & 0x0300) { + case 0x0200: + ast->chip = AST1100; + drm_info(dev, "AST 1100 detected\n"); + break; + case 0x0100: + ast->chip = AST2200; + drm_info(dev, "AST 2200 detected\n"); + break; + case 0x0000: + ast->chip = AST2150; + drm_info(dev, "AST 2150 detected\n"); + break; + default: + ast->chip = AST2100; + drm_info(dev, "AST 2100 detected\n"); + break; + } + ast->vga2_clone = false; + } else { + ast->chip = AST2000; + drm_info(dev, "AST 2000 detected\n"); + } + + /* Check if we support wide screen */ + switch (ast->chip) { + case AST2000: + ast->support_wide_screen = false; + break; + default: + jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd0, 0xff); + if (!(jreg & 0x80)) + ast->support_wide_screen = true; + else if (jreg & 0x01) + ast->support_wide_screen = true; + else { + ast->support_wide_screen = false; + if (ast->chip == AST2300 && + (scu_rev & 0x300) == 0x0) /* ast1300 */ + ast->support_wide_screen = true; + if (ast->chip == AST2400 && + (scu_rev & 0x300) == 0x100) /* ast1400 */ + ast->support_wide_screen = true; + if (ast->chip == AST2500 && + scu_rev == 0x100) /* ast2510 */ + ast->support_wide_screen = true; + if (ast->chip == AST2600) /* ast2600 */ + ast->support_wide_screen = true; + } + break; + } + + /* Check 3rd Tx option (digital output afaik) */ + ast->tx_chip_types |= AST_TX_NONE_BIT; + + /* + * VGACRA3 Enhanced Color Mode Register, check if DVO is already + * enabled, in that case, assume we have a SIL164 TMDS transmitter + * + * Don't make that assumption if we the chip wasn't enabled and + * is at power-on reset, otherwise we'll incorrectly "detect" a + * SIL164 when there is none. + */ + if (!*need_post) { + jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa3, 0xff); + if (jreg & 0x80) + ast->tx_chip_types = AST_TX_SIL164_BIT; + } + + if ((ast->chip == AST2300) || (ast->chip == AST2400) || (ast->chip == AST2500)) { + /* + * On AST2300 and 2400, look the configuration set by the SoC in + * the SOC scratch register #1 bits 11:8 (interestingly marked + * as "reserved" in the spec) + */ + jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd1, 0xff); + switch (jreg) { + case 0x04: + ast->tx_chip_types = AST_TX_SIL164_BIT; + break; + case 0x08: + ast->dp501_fw_addr = drmm_kzalloc(dev, 32*1024, GFP_KERNEL); + if (ast->dp501_fw_addr) { + /* backup firmware */ + if (ast_backup_fw(dev, ast->dp501_fw_addr, 32*1024)) { + drmm_kfree(dev, ast->dp501_fw_addr); + ast->dp501_fw_addr = NULL; + } + } + fallthrough; + case 0x0c: + ast->tx_chip_types = AST_TX_DP501_BIT; + } + } else if (ast->chip == AST2600) + ast_dp_launch(&ast->base, 0); + + /* Print stuff for diagnostic purposes */ + if (ast->tx_chip_types & AST_TX_NONE_BIT) + drm_info(dev, "Using analog VGA\n"); + if (ast->tx_chip_types & AST_TX_SIL164_BIT) + drm_info(dev, "Using Sil164 TMDS transmitter\n"); + if (ast->tx_chip_types & AST_TX_DP501_BIT) + drm_info(dev, "Using DP501 DisplayPort transmitter\n"); + + return 0; +} + +static int ast_get_dram_info(struct drm_device *dev) +{ + struct device_node *np = dev->dev->of_node; + struct ast_private *ast = to_ast_private(dev); + uint32_t mcr_cfg, mcr_scu_mpll, mcr_scu_strap; + uint32_t denum, num, div, ref_pll, dsel; + + switch (ast->config_mode) { + case ast_use_dt: + /* + * If some properties are missing, use reasonable + * defaults for AST2400 + */ + if (of_property_read_u32(np, "aspeed,mcr-configuration", + &mcr_cfg)) + mcr_cfg = 0x00000577; + if (of_property_read_u32(np, "aspeed,mcr-scu-mpll", + &mcr_scu_mpll)) + mcr_scu_mpll = 0x000050C0; + if (of_property_read_u32(np, "aspeed,mcr-scu-strap", + &mcr_scu_strap)) + mcr_scu_strap = 0; + break; + case ast_use_p2a: + ast_write32(ast, 0xf004, 0x1e6e0000); + ast_write32(ast, 0xf000, 0x1); + mcr_cfg = ast_read32(ast, 0x10004); + mcr_scu_mpll = ast_read32(ast, 0x10120); + mcr_scu_strap = ast_read32(ast, 0x10170); + break; + case ast_use_defaults: + default: + ast->dram_bus_width = 16; + ast->dram_type = AST_DRAM_1Gx16; + if (ast->chip == AST2500) + ast->mclk = 800; + else + ast->mclk = 396; + return 0; + } + + if (mcr_cfg & 0x40) + ast->dram_bus_width = 16; + else + ast->dram_bus_width = 32; + + if (ast->chip == AST2500) { + switch (mcr_cfg & 0x03) { + case 0: + ast->dram_type = AST_DRAM_1Gx16; + break; + default: + case 1: + ast->dram_type = AST_DRAM_2Gx16; + break; + case 2: + ast->dram_type = AST_DRAM_4Gx16; + break; + case 3: + ast->dram_type = AST_DRAM_8Gx16; + break; + } + } else if (ast->chip == AST2300 || ast->chip == AST2400) { + switch (mcr_cfg & 0x03) { + case 0: + ast->dram_type = AST_DRAM_512Mx16; + break; + default: + case 1: + ast->dram_type = AST_DRAM_1Gx16; + break; + case 2: + ast->dram_type = AST_DRAM_2Gx16; + break; + case 3: + ast->dram_type = AST_DRAM_4Gx16; + break; + } + } else { + switch (mcr_cfg & 0x0c) { + case 0: + case 4: + ast->dram_type = AST_DRAM_512Mx16; + break; + case 8: + if (mcr_cfg & 0x40) + ast->dram_type = AST_DRAM_1Gx16; + else + ast->dram_type = AST_DRAM_512Mx32; + break; + case 0xc: + ast->dram_type = AST_DRAM_1Gx32; + break; + } + } + + if (mcr_scu_strap & 0x2000) + ref_pll = 14318; + else + ref_pll = 12000; + + denum = mcr_scu_mpll & 0x1f; + num = (mcr_scu_mpll & 0x3fe0) >> 5; + dsel = (mcr_scu_mpll & 0xc000) >> 14; + switch (dsel) { + case 3: + div = 0x4; + break; + case 2: + case 1: + div = 0x2; + break; + default: + div = 0x1; + break; + } + ast->mclk = ref_pll * (num + 2) / ((denum + 2) * (div * 1000)); + return 0; +} + +/* + * Run this function as part of the HW device cleanup; not + * when the DRM device gets released. + */ +static void ast_device_release(void *data) +{ + struct ast_private *ast = data; + + /* enable standard VGA decode */ + ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa1, 0x04); +} + +struct ast_private *ast_device_create(const struct drm_driver *drv, + struct pci_dev *pdev, + unsigned long flags) +{ + struct drm_device *dev; + struct ast_private *ast; + bool need_post; + int ret = 0; + + ast = devm_drm_dev_alloc(&pdev->dev, drv, struct ast_private, base); + if (IS_ERR(ast)) + return ast; + dev = &ast->base; + + pci_set_drvdata(pdev, dev); + + ret = drmm_mutex_init(dev, &ast->ioregs_lock); + if (ret) + return ERR_PTR(ret); + + ast->regs = pcim_iomap(pdev, 1, 0); + if (!ast->regs) + return ERR_PTR(-EIO); + + /* + * If we don't have IO space at all, use MMIO now and + * assume the chip has MMIO enabled by default (rev 0x20 + * and higher). + */ + if (!(pci_resource_flags(pdev, 2) & IORESOURCE_IO)) { + drm_info(dev, "platform has no IO space, trying MMIO\n"); + ast->ioregs = ast->regs + AST_IO_MM_OFFSET; + } + + /* "map" IO regs if the above hasn't done so already */ + if (!ast->ioregs) { + ast->ioregs = pcim_iomap(pdev, 2, 0); + if (!ast->ioregs) + return ERR_PTR(-EIO); + } + + ast_detect_chip(dev, &need_post); + + ret = ast_get_dram_info(dev); + if (ret) + return ERR_PTR(ret); + + drm_info(dev, "dram MCLK=%u Mhz type=%d bus_width=%d\n", + ast->mclk, ast->dram_type, ast->dram_bus_width); + + if (need_post) + ast_post_gpu(dev); + + ret = ast_mm_init(ast); + if (ret) + return ERR_PTR(ret); + + /* map reserved buffer */ + ast->dp501_fw_buf = NULL; + if (ast->vram_size < pci_resource_len(pdev, 0)) { + ast->dp501_fw_buf = pci_iomap_range(pdev, 0, ast->vram_size, 0); + if (!ast->dp501_fw_buf) + drm_info(dev, "failed to map reserved buffer!\n"); + } + + ret = ast_mode_config_init(ast); + if (ret) + return ERR_PTR(ret); + + ret = devm_add_action_or_reset(dev->dev, ast_device_release, ast); + if (ret) + return ERR_PTR(ret); + + return ast; +} -- cgit v1.2.3