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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-19 10:09:22 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-19 10:09:22 -0700 |
| commit | f4cdf7ca9a1fdcca413157df19753f388a5a224e (patch) | |
| tree | 60a31895b2446cd7fa27514e8c2843534a0de0da /arch/alpha/lib/fpreg.c | |
| download | linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.tar.gz linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.zip | |
Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted
Pull media updates from Mauro Carvalho Chehab:
- v4l2-core: added ISP statistics support and per-block validation
- v4l2-core: Allow unknown HDR10 white point and luminance
- New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor
- New codec: Milos: VPU v2.0 codec support
- isp driver: gained support for Dreamchip RPPX1 ISP framework
- vsp1 driver: gained support for RZ/T2H and RZ/N2H
- Novalake driver: gained CVS support for new NVL hardware
- dvb-core: fix feed leak on failed DMX_ADD_PID
- several driver fixes, cleanups and minor improvements
* tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits)
media: ipu-bridge: check all DMI entries when overriding sensor rotation
media: v4l2-async: avoid deleting unlinked ASC entry on link error
media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement
media: intel/ipu6: fix async notifier cleanup leak on parse error
media: staging/ipu7: fix async notifier UAF on probe error path
media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path
media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem()
media: rcar-isp: Fix VSPX reference leaks
media: rcar-isp: Release ISPCORE resources
media: i2c: imx415: Release runtime PM reference on VBLANK error
media: i2c: imx415: Return test pattern write errors
media: renesas: vsp1: Declare index variables in for loop statement
media: renesas: vsp1: Make reset control optional to support platforms without a reset line
media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs
media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs
media: nxp: imx8-isi: Add additional 32-bit RGB format support
media: nxp: imx8-isi: Add 16-bit raw Bayer format support
media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams
media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks
media: nxp: imx8-isi: Correct color map between V4L2 and ISI
...
Diffstat (limited to 'arch/alpha/lib/fpreg.c')
| -rw-r--r-- | arch/alpha/lib/fpreg.c | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/arch/alpha/lib/fpreg.c b/arch/alpha/lib/fpreg.c new file mode 100644 index 000000000..3d3216504 --- /dev/null +++ b/arch/alpha/lib/fpreg.c @@ -0,0 +1,233 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * arch/alpha/lib/fpreg.c + * + * (C) Copyright 1998 Linus Torvalds + */ + +#include <linux/compiler.h> +#include <linux/export.h> +#include <linux/preempt.h> +#include <asm/fpu.h> +#include <asm/thread_info.h> + +#if defined(CONFIG_ALPHA_EV6) || defined(CONFIG_ALPHA_EV67) +#define STT(reg,val) asm volatile ("ftoit $f"#reg",%0" : "=r"(val)); +#else +#define STT(reg,val) asm volatile ("stt $f"#reg",%0" : "=m"(val)); +#endif + +unsigned long +alpha_read_fp_reg (unsigned long reg) +{ + unsigned long val; + + if (unlikely(reg >= 32)) + return 0; + preempt_disable(); + if (current_thread_info()->status & TS_SAVED_FP) + val = current_thread_info()->fp[reg]; + else switch (reg) { + case 0: STT( 0, val); break; + case 1: STT( 1, val); break; + case 2: STT( 2, val); break; + case 3: STT( 3, val); break; + case 4: STT( 4, val); break; + case 5: STT( 5, val); break; + case 6: STT( 6, val); break; + case 7: STT( 7, val); break; + case 8: STT( 8, val); break; + case 9: STT( 9, val); break; + case 10: STT(10, val); break; + case 11: STT(11, val); break; + case 12: STT(12, val); break; + case 13: STT(13, val); break; + case 14: STT(14, val); break; + case 15: STT(15, val); break; + case 16: STT(16, val); break; + case 17: STT(17, val); break; + case 18: STT(18, val); break; + case 19: STT(19, val); break; + case 20: STT(20, val); break; + case 21: STT(21, val); break; + case 22: STT(22, val); break; + case 23: STT(23, val); break; + case 24: STT(24, val); break; + case 25: STT(25, val); break; + case 26: STT(26, val); break; + case 27: STT(27, val); break; + case 28: STT(28, val); break; + case 29: STT(29, val); break; + case 30: STT(30, val); break; + case 31: STT(31, val); break; + } + preempt_enable(); + return val; +} +EXPORT_SYMBOL(alpha_read_fp_reg); + +#if defined(CONFIG_ALPHA_EV6) || defined(CONFIG_ALPHA_EV67) +#define LDT(reg,val) asm volatile ("itoft %0,$f"#reg : : "r"(val)); +#else +#define LDT(reg,val) asm volatile ("ldt $f"#reg",%0" : : "m"(val)); +#endif + +void +alpha_write_fp_reg (unsigned long reg, unsigned long val) +{ + if (unlikely(reg >= 32)) + return; + + preempt_disable(); + if (current_thread_info()->status & TS_SAVED_FP) { + current_thread_info()->status |= TS_RESTORE_FP; + current_thread_info()->fp[reg] = val; + } else switch (reg) { + case 0: LDT( 0, val); break; + case 1: LDT( 1, val); break; + case 2: LDT( 2, val); break; + case 3: LDT( 3, val); break; + case 4: LDT( 4, val); break; + case 5: LDT( 5, val); break; + case 6: LDT( 6, val); break; + case 7: LDT( 7, val); break; + case 8: LDT( 8, val); break; + case 9: LDT( 9, val); break; + case 10: LDT(10, val); break; + case 11: LDT(11, val); break; + case 12: LDT(12, val); break; + case 13: LDT(13, val); break; + case 14: LDT(14, val); break; + case 15: LDT(15, val); break; + case 16: LDT(16, val); break; + case 17: LDT(17, val); break; + case 18: LDT(18, val); break; + case 19: LDT(19, val); break; + case 20: LDT(20, val); break; + case 21: LDT(21, val); break; + case 22: LDT(22, val); break; + case 23: LDT(23, val); break; + case 24: LDT(24, val); break; + case 25: LDT(25, val); break; + case 26: LDT(26, val); break; + case 27: LDT(27, val); break; + case 28: LDT(28, val); break; + case 29: LDT(29, val); break; + case 30: LDT(30, val); break; + case 31: LDT(31, val); break; + } + preempt_enable(); +} +EXPORT_SYMBOL(alpha_write_fp_reg); + +#if defined(CONFIG_ALPHA_EV6) || defined(CONFIG_ALPHA_EV67) +#define STS(reg,val) asm volatile ("ftois $f"#reg",%0" : "=r"(val)); +#else +#define STS(reg,val) asm volatile ("sts $f"#reg",%0" : "=m"(val)); +#endif + +unsigned long +alpha_read_fp_reg_s (unsigned long reg) +{ + unsigned long val; + + if (unlikely(reg >= 32)) + return 0; + + preempt_disable(); + if (current_thread_info()->status & TS_SAVED_FP) { + LDT(0, current_thread_info()->fp[reg]); + STS(0, val); + } else switch (reg) { + case 0: STS( 0, val); break; + case 1: STS( 1, val); break; + case 2: STS( 2, val); break; + case 3: STS( 3, val); break; + case 4: STS( 4, val); break; + case 5: STS( 5, val); break; + case 6: STS( 6, val); break; + case 7: STS( 7, val); break; + case 8: STS( 8, val); break; + case 9: STS( 9, val); break; + case 10: STS(10, val); break; + case 11: STS(11, val); break; + case 12: STS(12, val); break; + case 13: STS(13, val); break; + case 14: STS(14, val); break; + case 15: STS(15, val); break; + case 16: STS(16, val); break; + case 17: STS(17, val); break; + case 18: STS(18, val); break; + case 19: STS(19, val); break; + case 20: STS(20, val); break; + case 21: STS(21, val); break; + case 22: STS(22, val); break; + case 23: STS(23, val); break; + case 24: STS(24, val); break; + case 25: STS(25, val); break; + case 26: STS(26, val); break; + case 27: STS(27, val); break; + case 28: STS(28, val); break; + case 29: STS(29, val); break; + case 30: STS(30, val); break; + case 31: STS(31, val); break; + } + preempt_enable(); + return val; +} +EXPORT_SYMBOL(alpha_read_fp_reg_s); + +#if defined(CONFIG_ALPHA_EV6) || defined(CONFIG_ALPHA_EV67) +#define LDS(reg,val) asm volatile ("itofs %0,$f"#reg : : "r"(val)); +#else +#define LDS(reg,val) asm volatile ("lds $f"#reg",%0" : : "m"(val)); +#endif + +void +alpha_write_fp_reg_s (unsigned long reg, unsigned long val) +{ + if (unlikely(reg >= 32)) + return; + + preempt_disable(); + if (current_thread_info()->status & TS_SAVED_FP) { + current_thread_info()->status |= TS_RESTORE_FP; + LDS(0, val); + STT(0, current_thread_info()->fp[reg]); + } else switch (reg) { + case 0: LDS( 0, val); break; + case 1: LDS( 1, val); break; + case 2: LDS( 2, val); break; + case 3: LDS( 3, val); break; + case 4: LDS( 4, val); break; + case 5: LDS( 5, val); break; + case 6: LDS( 6, val); break; + case 7: LDS( 7, val); break; + case 8: LDS( 8, val); break; + case 9: LDS( 9, val); break; + case 10: LDS(10, val); break; + case 11: LDS(11, val); break; + case 12: LDS(12, val); break; + case 13: LDS(13, val); break; + case 14: LDS(14, val); break; + case 15: LDS(15, val); break; + case 16: LDS(16, val); break; + case 17: LDS(17, val); break; + case 18: LDS(18, val); break; + case 19: LDS(19, val); break; + case 20: LDS(20, val); break; + case 21: LDS(21, val); break; + case 22: LDS(22, val); break; + case 23: LDS(23, val); break; + case 24: LDS(24, val); break; + case 25: LDS(25, val); break; + case 26: LDS(26, val); break; + case 27: LDS(27, val); break; + case 28: LDS(28, val); break; + case 29: LDS(29, val); break; + case 30: LDS(30, val); break; + case 31: LDS(31, val); break; + } + preempt_enable(); +} +EXPORT_SYMBOL(alpha_write_fp_reg_s); |
