diff options
author | 2023-02-21 18:24:12 -0800 | |
---|---|---|
committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/gpu/drm/imx/dcss/dcss-dtg.c | |
download | linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip |
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/gpu/drm/imx/dcss/dcss-dtg.c')
-rw-r--r-- | drivers/gpu/drm/imx/dcss/dcss-dtg.c | 409 |
1 files changed, 409 insertions, 0 deletions
diff --git a/drivers/gpu/drm/imx/dcss/dcss-dtg.c b/drivers/gpu/drm/imx/dcss/dcss-dtg.c new file mode 100644 index 000000000..30de00540 --- /dev/null +++ b/drivers/gpu/drm/imx/dcss/dcss-dtg.c @@ -0,0 +1,409 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright 2019 NXP. + */ + +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/slab.h> + +#include "dcss-dev.h" + +#define DCSS_DTG_TC_CONTROL_STATUS 0x00 +#define CH3_EN BIT(0) +#define CH2_EN BIT(1) +#define CH1_EN BIT(2) +#define OVL_DATA_MODE BIT(3) +#define BLENDER_VIDEO_ALPHA_SEL BIT(7) +#define DTG_START BIT(8) +#define DBY_MODE_EN BIT(9) +#define CH1_ALPHA_SEL BIT(10) +#define CSS_PIX_COMP_SWAP_POS 12 +#define CSS_PIX_COMP_SWAP_MASK GENMASK(14, 12) +#define DEFAULT_FG_ALPHA_POS 24 +#define DEFAULT_FG_ALPHA_MASK GENMASK(31, 24) +#define DCSS_DTG_TC_DTG 0x04 +#define DCSS_DTG_TC_DISP_TOP 0x08 +#define DCSS_DTG_TC_DISP_BOT 0x0C +#define DCSS_DTG_TC_CH1_TOP 0x10 +#define DCSS_DTG_TC_CH1_BOT 0x14 +#define DCSS_DTG_TC_CH2_TOP 0x18 +#define DCSS_DTG_TC_CH2_BOT 0x1C +#define DCSS_DTG_TC_CH3_TOP 0x20 +#define DCSS_DTG_TC_CH3_BOT 0x24 +#define TC_X_POS 0 +#define TC_X_MASK GENMASK(12, 0) +#define TC_Y_POS 16 +#define TC_Y_MASK GENMASK(28, 16) +#define DCSS_DTG_TC_CTXLD 0x28 +#define TC_CTXLD_DB_Y_POS 0 +#define TC_CTXLD_DB_Y_MASK GENMASK(12, 0) +#define TC_CTXLD_SB_Y_POS 16 +#define TC_CTXLD_SB_Y_MASK GENMASK(28, 16) +#define DCSS_DTG_TC_CH1_BKRND 0x2C +#define DCSS_DTG_TC_CH2_BKRND 0x30 +#define BKRND_R_Y_COMP_POS 20 +#define BKRND_R_Y_COMP_MASK GENMASK(29, 20) +#define BKRND_G_U_COMP_POS 10 +#define BKRND_G_U_COMP_MASK GENMASK(19, 10) +#define BKRND_B_V_COMP_POS 0 +#define BKRND_B_V_COMP_MASK GENMASK(9, 0) +#define DCSS_DTG_BLENDER_DBY_RANGEINV 0x38 +#define DCSS_DTG_BLENDER_DBY_RANGEMIN 0x3C +#define DCSS_DTG_BLENDER_DBY_BDP 0x40 +#define DCSS_DTG_BLENDER_BKRND_I 0x44 +#define DCSS_DTG_BLENDER_BKRND_P 0x48 +#define DCSS_DTG_BLENDER_BKRND_T 0x4C +#define DCSS_DTG_LINE0_INT 0x50 +#define DCSS_DTG_LINE1_INT 0x54 +#define DCSS_DTG_BG_ALPHA_DEFAULT 0x58 +#define DCSS_DTG_INT_STATUS 0x5C +#define DCSS_DTG_INT_CONTROL 0x60 +#define DCSS_DTG_TC_CH3_BKRND 0x64 +#define DCSS_DTG_INT_MASK 0x68 +#define LINE0_IRQ BIT(0) +#define LINE1_IRQ BIT(1) +#define LINE2_IRQ BIT(2) +#define LINE3_IRQ BIT(3) +#define DCSS_DTG_LINE2_INT 0x6C +#define DCSS_DTG_LINE3_INT 0x70 +#define DCSS_DTG_DBY_OL 0x74 +#define DCSS_DTG_DBY_BL 0x78 +#define DCSS_DTG_DBY_EL 0x7C + +struct dcss_dtg { + struct device *dev; + struct dcss_ctxld *ctxld; + void __iomem *base_reg; + u32 base_ofs; + + u32 ctx_id; + + bool in_use; + + u32 dis_ulc_x; + u32 dis_ulc_y; + + u32 control_status; + u32 alpha; + u32 alpha_cfg; + + int ctxld_kick_irq; + bool ctxld_kick_irq_en; +}; + +static void dcss_dtg_write(struct dcss_dtg *dtg, u32 val, u32 ofs) +{ + if (!dtg->in_use) + dcss_writel(val, dtg->base_reg + ofs); + + dcss_ctxld_write(dtg->ctxld, dtg->ctx_id, + val, dtg->base_ofs + ofs); +} + +static irqreturn_t dcss_dtg_irq_handler(int irq, void *data) +{ + struct dcss_dtg *dtg = data; + u32 status; + + status = dcss_readl(dtg->base_reg + DCSS_DTG_INT_STATUS); + + if (!(status & LINE0_IRQ)) + return IRQ_NONE; + + dcss_ctxld_kick(dtg->ctxld); + + dcss_writel(status & LINE0_IRQ, dtg->base_reg + DCSS_DTG_INT_CONTROL); + + return IRQ_HANDLED; +} + +static int dcss_dtg_irq_config(struct dcss_dtg *dtg, + struct platform_device *pdev) +{ + int ret; + + dtg->ctxld_kick_irq = platform_get_irq_byname(pdev, "ctxld_kick"); + if (dtg->ctxld_kick_irq < 0) + return dtg->ctxld_kick_irq; + + dcss_update(0, LINE0_IRQ | LINE1_IRQ, + dtg->base_reg + DCSS_DTG_INT_MASK); + + ret = request_irq(dtg->ctxld_kick_irq, dcss_dtg_irq_handler, + 0, "dcss_ctxld_kick", dtg); + if (ret) { + dev_err(dtg->dev, "dtg: irq request failed.\n"); + return ret; + } + + disable_irq(dtg->ctxld_kick_irq); + + dtg->ctxld_kick_irq_en = false; + + return 0; +} + +int dcss_dtg_init(struct dcss_dev *dcss, unsigned long dtg_base) +{ + int ret = 0; + struct dcss_dtg *dtg; + + dtg = kzalloc(sizeof(*dtg), GFP_KERNEL); + if (!dtg) + return -ENOMEM; + + dcss->dtg = dtg; + dtg->dev = dcss->dev; + dtg->ctxld = dcss->ctxld; + + dtg->base_reg = ioremap(dtg_base, SZ_4K); + if (!dtg->base_reg) { + dev_err(dcss->dev, "dtg: unable to remap dtg base\n"); + ret = -ENOMEM; + goto err_ioremap; + } + + dtg->base_ofs = dtg_base; + dtg->ctx_id = CTX_DB; + + dtg->alpha = 255; + + dtg->control_status |= OVL_DATA_MODE | BLENDER_VIDEO_ALPHA_SEL | + ((dtg->alpha << DEFAULT_FG_ALPHA_POS) & DEFAULT_FG_ALPHA_MASK); + + ret = dcss_dtg_irq_config(dtg, to_platform_device(dcss->dev)); + if (ret) + goto err_irq; + + return 0; + +err_irq: + iounmap(dtg->base_reg); + +err_ioremap: + kfree(dtg); + + return ret; +} + +void dcss_dtg_exit(struct dcss_dtg *dtg) +{ + free_irq(dtg->ctxld_kick_irq, dtg); + + if (dtg->base_reg) + iounmap(dtg->base_reg); + + kfree(dtg); +} + +void dcss_dtg_sync_set(struct dcss_dtg *dtg, struct videomode *vm) +{ + struct dcss_dev *dcss = dcss_drv_dev_to_dcss(dtg->dev); + u16 dtg_lrc_x, dtg_lrc_y; + u16 dis_ulc_x, dis_ulc_y; + u16 dis_lrc_x, dis_lrc_y; + u32 sb_ctxld_trig, db_ctxld_trig; + u32 pixclock = vm->pixelclock; + u32 actual_clk; + + dtg_lrc_x = vm->hfront_porch + vm->hback_porch + vm->hsync_len + + vm->hactive - 1; + dtg_lrc_y = vm->vfront_porch + vm->vback_porch + vm->vsync_len + + vm->vactive - 1; + dis_ulc_x = vm->hsync_len + vm->hback_porch - 1; + dis_ulc_y = vm->vsync_len + vm->vfront_porch + vm->vback_porch - 1; + dis_lrc_x = vm->hsync_len + vm->hback_porch + vm->hactive - 1; + dis_lrc_y = vm->vsync_len + vm->vfront_porch + vm->vback_porch + + vm->vactive - 1; + + clk_disable_unprepare(dcss->pix_clk); + clk_set_rate(dcss->pix_clk, vm->pixelclock); + clk_prepare_enable(dcss->pix_clk); + + actual_clk = clk_get_rate(dcss->pix_clk); + if (pixclock != actual_clk) { + dev_info(dtg->dev, + "Pixel clock set to %u kHz instead of %u kHz.\n", + (actual_clk / 1000), (pixclock / 1000)); + } + + dcss_dtg_write(dtg, ((dtg_lrc_y << TC_Y_POS) | dtg_lrc_x), + DCSS_DTG_TC_DTG); + dcss_dtg_write(dtg, ((dis_ulc_y << TC_Y_POS) | dis_ulc_x), + DCSS_DTG_TC_DISP_TOP); + dcss_dtg_write(dtg, ((dis_lrc_y << TC_Y_POS) | dis_lrc_x), + DCSS_DTG_TC_DISP_BOT); + + dtg->dis_ulc_x = dis_ulc_x; + dtg->dis_ulc_y = dis_ulc_y; + + sb_ctxld_trig = ((0 * dis_lrc_y / 100) << TC_CTXLD_SB_Y_POS) & + TC_CTXLD_SB_Y_MASK; + db_ctxld_trig = ((99 * dis_lrc_y / 100) << TC_CTXLD_DB_Y_POS) & + TC_CTXLD_DB_Y_MASK; + + dcss_dtg_write(dtg, sb_ctxld_trig | db_ctxld_trig, DCSS_DTG_TC_CTXLD); + + /* vblank trigger */ + dcss_dtg_write(dtg, 0, DCSS_DTG_LINE1_INT); + + /* CTXLD trigger */ + dcss_dtg_write(dtg, ((90 * dis_lrc_y) / 100) << 16, DCSS_DTG_LINE0_INT); +} + +void dcss_dtg_plane_pos_set(struct dcss_dtg *dtg, int ch_num, + int px, int py, int pw, int ph) +{ + u16 p_ulc_x, p_ulc_y; + u16 p_lrc_x, p_lrc_y; + + p_ulc_x = dtg->dis_ulc_x + px; + p_ulc_y = dtg->dis_ulc_y + py; + p_lrc_x = p_ulc_x + pw; + p_lrc_y = p_ulc_y + ph; + + if (!px && !py && !pw && !ph) { + dcss_dtg_write(dtg, 0, DCSS_DTG_TC_CH1_TOP + 0x8 * ch_num); + dcss_dtg_write(dtg, 0, DCSS_DTG_TC_CH1_BOT + 0x8 * ch_num); + } else { + dcss_dtg_write(dtg, ((p_ulc_y << TC_Y_POS) | p_ulc_x), + DCSS_DTG_TC_CH1_TOP + 0x8 * ch_num); + dcss_dtg_write(dtg, ((p_lrc_y << TC_Y_POS) | p_lrc_x), + DCSS_DTG_TC_CH1_BOT + 0x8 * ch_num); + } +} + +bool dcss_dtg_global_alpha_changed(struct dcss_dtg *dtg, int ch_num, int alpha) +{ + if (ch_num) + return false; + + return alpha != dtg->alpha; +} + +void dcss_dtg_plane_alpha_set(struct dcss_dtg *dtg, int ch_num, + const struct drm_format_info *format, int alpha) +{ + /* we care about alpha only when channel 0 is concerned */ + if (ch_num) + return; + + /* + * Use global alpha if pixel format does not have alpha channel or the + * user explicitly chose to use global alpha (i.e. alpha is not OPAQUE). + */ + if (!format->has_alpha || alpha != 255) + dtg->alpha_cfg = (alpha << DEFAULT_FG_ALPHA_POS) & DEFAULT_FG_ALPHA_MASK; + else /* use per-pixel alpha otherwise */ + dtg->alpha_cfg = CH1_ALPHA_SEL; + + dtg->alpha = alpha; +} + +void dcss_dtg_css_set(struct dcss_dtg *dtg) +{ + dtg->control_status |= + (0x5 << CSS_PIX_COMP_SWAP_POS) & CSS_PIX_COMP_SWAP_MASK; +} + +void dcss_dtg_enable(struct dcss_dtg *dtg) +{ + dtg->control_status |= DTG_START; + + dtg->control_status &= ~(CH1_ALPHA_SEL | DEFAULT_FG_ALPHA_MASK); + dtg->control_status |= dtg->alpha_cfg; + + dcss_dtg_write(dtg, dtg->control_status, DCSS_DTG_TC_CONTROL_STATUS); + + dtg->in_use = true; +} + +void dcss_dtg_shutoff(struct dcss_dtg *dtg) +{ + dtg->control_status &= ~DTG_START; + + dcss_writel(dtg->control_status, + dtg->base_reg + DCSS_DTG_TC_CONTROL_STATUS); + + dtg->in_use = false; +} + +bool dcss_dtg_is_enabled(struct dcss_dtg *dtg) +{ + return dtg->in_use; +} + +void dcss_dtg_ch_enable(struct dcss_dtg *dtg, int ch_num, bool en) +{ + u32 ch_en_map[] = {CH1_EN, CH2_EN, CH3_EN}; + u32 control_status; + + control_status = dtg->control_status & ~ch_en_map[ch_num]; + control_status |= en ? ch_en_map[ch_num] : 0; + + control_status &= ~(CH1_ALPHA_SEL | DEFAULT_FG_ALPHA_MASK); + control_status |= dtg->alpha_cfg; + + if (dtg->control_status != control_status) + dcss_dtg_write(dtg, control_status, DCSS_DTG_TC_CONTROL_STATUS); + + dtg->control_status = control_status; +} + +void dcss_dtg_vblank_irq_enable(struct dcss_dtg *dtg, bool en) +{ + u32 status; + u32 mask = en ? LINE1_IRQ : 0; + + if (en) { + status = dcss_readl(dtg->base_reg + DCSS_DTG_INT_STATUS); + dcss_writel(status & LINE1_IRQ, + dtg->base_reg + DCSS_DTG_INT_CONTROL); + } + + dcss_update(mask, LINE1_IRQ, dtg->base_reg + DCSS_DTG_INT_MASK); +} + +void dcss_dtg_ctxld_kick_irq_enable(struct dcss_dtg *dtg, bool en) +{ + u32 status; + u32 mask = en ? LINE0_IRQ : 0; + + if (en) { + status = dcss_readl(dtg->base_reg + DCSS_DTG_INT_STATUS); + + if (!dtg->ctxld_kick_irq_en) { + dcss_writel(status & LINE0_IRQ, + dtg->base_reg + DCSS_DTG_INT_CONTROL); + enable_irq(dtg->ctxld_kick_irq); + dtg->ctxld_kick_irq_en = true; + dcss_update(mask, LINE0_IRQ, + dtg->base_reg + DCSS_DTG_INT_MASK); + } + + return; + } + + if (!dtg->ctxld_kick_irq_en) + return; + + disable_irq_nosync(dtg->ctxld_kick_irq); + dtg->ctxld_kick_irq_en = false; + + dcss_update(mask, LINE0_IRQ, dtg->base_reg + DCSS_DTG_INT_MASK); +} + +void dcss_dtg_vblank_irq_clear(struct dcss_dtg *dtg) +{ + dcss_update(LINE1_IRQ, LINE1_IRQ, dtg->base_reg + DCSS_DTG_INT_CONTROL); +} + +bool dcss_dtg_vblank_irq_valid(struct dcss_dtg *dtg) +{ + return !!(dcss_readl(dtg->base_reg + DCSS_DTG_INT_STATUS) & LINE1_IRQ); +} + |