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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/media/platform/ti/vpe/csc.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
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Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
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(). ...
Diffstat (limited to 'drivers/media/platform/ti/vpe/csc.c')
-rw-r--r--drivers/media/platform/ti/vpe/csc.c279
1 files changed, 279 insertions, 0 deletions
diff --git a/drivers/media/platform/ti/vpe/csc.c b/drivers/media/platform/ti/vpe/csc.c
new file mode 100644
index 000000000..ff15bc589
--- /dev/null
+++ b/drivers/media/platform/ti/vpe/csc.c
@@ -0,0 +1,279 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Color space converter library
+ *
+ * Copyright (c) 2013 Texas Instruments Inc.
+ *
+ * David Griego, <dagriego@biglakesoftware.com>
+ * Dale Farnsworth, <dale@farnsworth.org>
+ * Archit Taneja, <archit@ti.com>
+ */
+
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-common.h>
+
+#include "csc.h"
+
+/*
+ * 12 coefficients in the order:
+ * a0, b0, c0, a1, b1, c1, a2, b2, c2, d0, d1, d2
+ */
+struct quantization {
+ u16 coeff[12];
+};
+
+struct colorspace {
+ struct quantization limited;
+ struct quantization full;
+};
+
+struct encoding_direction {
+ struct colorspace r601;
+ struct colorspace r709;
+};
+
+struct csc_coeffs {
+ struct encoding_direction y2r;
+ struct encoding_direction r2y;
+};
+
+/* default colorspace coefficients */
+static struct csc_coeffs csc_coeffs = {
+ .y2r = {
+ .r601 = {
+ .limited = {
+ { /* SDTV */
+ 0x0400, 0x0000, 0x057D, 0x0400, 0x1EA7, 0x1D35,
+ 0x0400, 0x06EF, 0x1FFE, 0x0D40, 0x0210, 0x0C88,
+ }
+ },
+ .full = {
+ { /* SDTV */
+ 0x04A8, 0x1FFE, 0x0662, 0x04A8, 0x1E6F, 0x1CBF,
+ 0x04A8, 0x0812, 0x1FFF, 0x0C84, 0x0220, 0x0BAC,
+ }
+ },
+ },
+ .r709 = {
+ .limited = {
+ { /* HDTV */
+ 0x0400, 0x0000, 0x0629, 0x0400, 0x1F45, 0x1E2B,
+ 0x0400, 0x0742, 0x0000, 0x0CEC, 0x0148, 0x0C60,
+ }
+ },
+ .full = {
+ { /* HDTV */
+ 0x04A8, 0x0000, 0x072C, 0x04A8, 0x1F26, 0x1DDE,
+ 0x04A8, 0x0873, 0x0000, 0x0C20, 0x0134, 0x0B7C,
+ }
+ },
+ },
+ },
+ .r2y = {
+ .r601 = {
+ .limited = {
+ { /* SDTV */
+ 0x0132, 0x0259, 0x0075, 0x1F50, 0x1EA5, 0x020B,
+ 0x020B, 0x1E4A, 0x1FAB, 0x0000, 0x0200, 0x0200,
+ }
+ },
+ .full = {
+ { /* SDTV */
+ 0x0107, 0x0204, 0x0064, 0x1F68, 0x1ED6, 0x01C2,
+ 0x01C2, 0x1E87, 0x1FB7, 0x0040, 0x0200, 0x0200,
+ }
+ },
+ },
+ .r709 = {
+ .limited = {
+ { /* HDTV */
+ 0x00DA, 0x02DC, 0x004A, 0x1F88, 0x1E6C, 0x020C,
+ 0x020C, 0x1E24, 0x1FD0, 0x0000, 0x0200, 0x0200,
+ }
+ },
+ .full = {
+ { /* HDTV */
+ 0x00bb, 0x0275, 0x003f, 0x1f99, 0x1ea5, 0x01c2,
+ 0x01c2, 0x1e67, 0x1fd7, 0x0040, 0x0200, 0x0200,
+ }
+ },
+ },
+ },
+
+};
+
+void csc_dump_regs(struct csc_data *csc)
+{
+ struct device *dev = &csc->pdev->dev;
+
+#define DUMPREG(r) dev_dbg(dev, "%-35s %08x\n", #r, \
+ ioread32(csc->base + CSC_##r))
+
+ dev_dbg(dev, "CSC Registers @ %pa:\n", &csc->res->start);
+
+ DUMPREG(CSC00);
+ DUMPREG(CSC01);
+ DUMPREG(CSC02);
+ DUMPREG(CSC03);
+ DUMPREG(CSC04);
+ DUMPREG(CSC05);
+
+#undef DUMPREG
+}
+EXPORT_SYMBOL(csc_dump_regs);
+
+void csc_set_coeff_bypass(struct csc_data *csc, u32 *csc_reg5)
+{
+ *csc_reg5 |= CSC_BYPASS;
+}
+EXPORT_SYMBOL(csc_set_coeff_bypass);
+
+/*
+ * set the color space converter coefficient shadow register values
+ */
+void csc_set_coeff(struct csc_data *csc, u32 *csc_reg0,
+ struct v4l2_format *src_fmt, struct v4l2_format *dst_fmt)
+{
+ u32 *csc_reg5 = csc_reg0 + 5;
+ u32 *shadow_csc = csc_reg0;
+ u16 *coeff, *end_coeff;
+ const struct v4l2_pix_format *pix;
+ const struct v4l2_pix_format_mplane *mp;
+ const struct v4l2_format_info *src_finfo, *dst_finfo;
+ enum v4l2_ycbcr_encoding src_ycbcr_enc, dst_ycbcr_enc;
+ enum v4l2_quantization src_quantization, dst_quantization;
+ u32 src_pixelformat, dst_pixelformat;
+
+ if (V4L2_TYPE_IS_MULTIPLANAR(src_fmt->type)) {
+ mp = &src_fmt->fmt.pix_mp;
+ src_pixelformat = mp->pixelformat;
+ src_ycbcr_enc = mp->ycbcr_enc;
+ src_quantization = mp->quantization;
+ } else {
+ pix = &src_fmt->fmt.pix;
+ src_pixelformat = pix->pixelformat;
+ src_ycbcr_enc = pix->ycbcr_enc;
+ src_quantization = pix->quantization;
+ }
+
+ if (V4L2_TYPE_IS_MULTIPLANAR(dst_fmt->type)) {
+ mp = &dst_fmt->fmt.pix_mp;
+ dst_pixelformat = mp->pixelformat;
+ dst_ycbcr_enc = mp->ycbcr_enc;
+ dst_quantization = mp->quantization;
+ } else {
+ pix = &dst_fmt->fmt.pix;
+ dst_pixelformat = pix->pixelformat;
+ dst_ycbcr_enc = pix->ycbcr_enc;
+ dst_quantization = pix->quantization;
+ }
+
+ src_finfo = v4l2_format_info(src_pixelformat);
+ dst_finfo = v4l2_format_info(dst_pixelformat);
+
+ if (v4l2_is_format_yuv(src_finfo) &&
+ v4l2_is_format_rgb(dst_finfo)) {
+ /* Y2R */
+
+ /*
+ * These are not the standard default values but are
+ * set this way for historical compatibility
+ */
+ if (src_ycbcr_enc == V4L2_YCBCR_ENC_DEFAULT)
+ src_ycbcr_enc = V4L2_YCBCR_ENC_601;
+
+ if (src_quantization == V4L2_QUANTIZATION_DEFAULT)
+ src_quantization = V4L2_QUANTIZATION_FULL_RANGE;
+
+ if (src_ycbcr_enc == V4L2_YCBCR_ENC_601) {
+ if (src_quantization == V4L2_QUANTIZATION_FULL_RANGE)
+ coeff = csc_coeffs.y2r.r601.full.coeff;
+ else
+ coeff = csc_coeffs.y2r.r601.limited.coeff;
+ } else if (src_ycbcr_enc == V4L2_YCBCR_ENC_709) {
+ if (src_quantization == V4L2_QUANTIZATION_FULL_RANGE)
+ coeff = csc_coeffs.y2r.r709.full.coeff;
+ else
+ coeff = csc_coeffs.y2r.r709.limited.coeff;
+ } else {
+ /* Should never reach this, but it keeps gcc happy */
+ coeff = csc_coeffs.y2r.r601.full.coeff;
+ }
+ } else if (v4l2_is_format_rgb(src_finfo) &&
+ v4l2_is_format_yuv(dst_finfo)) {
+ /* R2Y */
+
+ /*
+ * These are not the standard default values but are
+ * set this way for historical compatibility
+ */
+ if (dst_ycbcr_enc == V4L2_YCBCR_ENC_DEFAULT)
+ dst_ycbcr_enc = V4L2_YCBCR_ENC_601;
+
+ if (dst_quantization == V4L2_QUANTIZATION_DEFAULT)
+ dst_quantization = V4L2_QUANTIZATION_FULL_RANGE;
+
+ if (dst_ycbcr_enc == V4L2_YCBCR_ENC_601) {
+ if (dst_quantization == V4L2_QUANTIZATION_FULL_RANGE)
+ coeff = csc_coeffs.r2y.r601.full.coeff;
+ else
+ coeff = csc_coeffs.r2y.r601.limited.coeff;
+ } else if (dst_ycbcr_enc == V4L2_YCBCR_ENC_709) {
+ if (dst_quantization == V4L2_QUANTIZATION_FULL_RANGE)
+ coeff = csc_coeffs.r2y.r709.full.coeff;
+ else
+ coeff = csc_coeffs.r2y.r709.limited.coeff;
+ } else {
+ /* Should never reach this, but it keeps gcc happy */
+ coeff = csc_coeffs.r2y.r601.full.coeff;
+ }
+ } else {
+ *csc_reg5 |= CSC_BYPASS;
+ return;
+ }
+
+ end_coeff = coeff + 12;
+
+ for (; coeff < end_coeff; coeff += 2)
+ *shadow_csc++ = (*(coeff + 1) << 16) | *coeff;
+}
+EXPORT_SYMBOL(csc_set_coeff);
+
+struct csc_data *csc_create(struct platform_device *pdev, const char *res_name)
+{
+ struct csc_data *csc;
+
+ dev_dbg(&pdev->dev, "csc_create\n");
+
+ csc = devm_kzalloc(&pdev->dev, sizeof(*csc), GFP_KERNEL);
+ if (!csc) {
+ dev_err(&pdev->dev, "couldn't alloc csc_data\n");
+ return ERR_PTR(-ENOMEM);
+ }
+
+ csc->pdev = pdev;
+
+ csc->res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+ res_name);
+ if (csc->res == NULL) {
+ dev_err(&pdev->dev, "missing '%s' platform resources data\n",
+ res_name);
+ return ERR_PTR(-ENODEV);
+ }
+
+ csc->base = devm_ioremap_resource(&pdev->dev, csc->res);
+ if (IS_ERR(csc->base))
+ return ERR_CAST(csc->base);
+
+ return csc;
+}
+EXPORT_SYMBOL(csc_create);
+
+MODULE_DESCRIPTION("TI VIP/VPE Color Space Converter");
+MODULE_AUTHOR("Texas Instruments Inc.");
+MODULE_LICENSE("GPL v2");