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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-24 08:46:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-24 08:46:03 -0700
commitcf9610f9116d55c5a66ef9f1faecacabd93a9322 (patch)
tree757a3d280760c654767631cab5ad8af2d86d1848 /arch/hexagon/lib/memset.S
downloadlinux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.tar.gz
linux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.zip
Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlgrafted
Pull pin control updates from Linus Walleij: "Core changes: - Use the non-blocking mux_state_try_select() in the generic MUX pin control back-end - Free pin maps on pinctrl_generic_to_map() failure in the core helpers New hardware pin control: - Qualcomm Maili TLMM SoC, PMG1110 PMIC, and Eliza LPASS LPI TLMM SoC (this is for the low power audio, LPASS = Low Power Audio SubSystem portions) - Upboard support on top of the Intel pin controller - Apple T6030 and T6031 support (just compatible strings) - Samsung Exynos 8855 SoC - Mediatek MT6858 SoC - Rockchip RK3308B and RV1106 SoCs - Airoha EN7523 and AN7563 SoCs Improvements: - Qualcomm TLMM GPIOs are unconditionally marked as wakeup capable - Qualcomm improvements on top of the Qualcomm PDC (power domain controller) irqchip improvements from tglx:s tree - Qualcomm IPQ806x and IPQ9650 non-urgent pin grop fixups - The NPCM8xx driver has been put into shape fixing many pin and group definitions - Some non-urgent Tegra 264 pin assignments are fixed up - Some non-urgent fixups to Airoha AN7581 and AN7583 registers and pin assignments, missing features etc" * tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (130 commits) dt-bindings: pinctrl: Convert TI DA850 pupd to DT schema pinctrl: meson: sync some modify from A4 pinctrl: meson: a4: Add input enable pin configuration pinctrl: realtek: rtd1625: remove unused group name spdif_sel pinctrl: realtek: rtd1625: fix base_bit for VE4 GPIO 13 dt-bindings: pinctrl: microchip,pic32mzda-pinctrl: Convert to DT schema Revert "Merge branch 'ib-rsk7204' into devel" pinctrl: rockchip: Add RV1106 pinctrl support dt-bindings: pinctrl: rockchip: Add RV1106 compatible pinctrl: rockchip: Decode drive strength in the get function pinctrl: fix PINCTRL_GENERIC_MUX not always being selectable pinctrl: airoha: add support of an7563 SoC dt-bindings: pinctrl: airoha: add support of an7563 pin controller pinctrl: airoha: try to find chip scu node by phandle first pinctrl: airoha: add support of en7523 SoC dt-bindings: pinctrl: airoha: add support of en7523 pin controller pinctrl: airoha: an7583: add support for olt pinmux pinctrl: airoha: an7583: add support for pon_alt pinmux pinctrl: airoha: an7583: add support for npu_uart pinmux dt-bindings: pinctrl: airoha: an7583: add missed features ...
Diffstat (limited to 'arch/hexagon/lib/memset.S')
-rw-r--r--arch/hexagon/lib/memset.S302
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diff --git a/arch/hexagon/lib/memset.S b/arch/hexagon/lib/memset.S
new file mode 100644
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+++ b/arch/hexagon/lib/memset.S
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+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2011, The Linux Foundation. All rights reserved.
+ */
+
+
+/* HEXAGON assembly optimized memset */
+/* Replaces the standard library function memset */
+
+
+ .macro HEXAGON_OPT_FUNC_BEGIN name
+ .text
+ .p2align 4
+ .globl \name
+ .type \name, @function
+\name:
+ .endm
+
+ .macro HEXAGON_OPT_FUNC_FINISH name
+ .size \name, . - \name
+ .endm
+
+/* FUNCTION: memset (v2 version) */
+#if __HEXAGON_ARCH__ < 3
+HEXAGON_OPT_FUNC_BEGIN memset
+ {
+ r6 = #8
+ r7 = extractu(r0, #3 , #0)
+ p0 = cmp.eq(r2, #0)
+ p1 = cmp.gtu(r2, #7)
+ }
+ {
+ r4 = vsplatb(r1)
+ r8 = r0 /* leave r0 intact for return val */
+ r9 = sub(r6, r7) /* bytes until double alignment */
+ if p0 jumpr r31 /* count == 0, so return */
+ }
+ {
+ r3 = #0
+ r7 = #0
+ p0 = tstbit(r9, #0)
+ if p1 jump 2f /* skip byte loop */
+ }
+
+/* less than 8 bytes to set, so just set a byte at a time and return */
+
+ loop0(1f, r2) /* byte loop */
+ .falign
+1: /* byte loop */
+ {
+ memb(r8++#1) = r4
+ }:endloop0
+ jumpr r31
+ .falign
+2: /* skip byte loop */
+ {
+ r6 = #1
+ p0 = tstbit(r9, #1)
+ p1 = cmp.eq(r2, #1)
+ if !p0 jump 3f /* skip initial byte store */
+ }
+ {
+ memb(r8++#1) = r4
+ r3:2 = sub(r3:2, r7:6)
+ if p1 jumpr r31
+ }
+ .falign
+3: /* skip initial byte store */
+ {
+ r6 = #2
+ p0 = tstbit(r9, #2)
+ p1 = cmp.eq(r2, #2)
+ if !p0 jump 4f /* skip initial half store */
+ }
+ {
+ memh(r8++#2) = r4
+ r3:2 = sub(r3:2, r7:6)
+ if p1 jumpr r31
+ }
+ .falign
+4: /* skip initial half store */
+ {
+ r6 = #4
+ p0 = cmp.gtu(r2, #7)
+ p1 = cmp.eq(r2, #4)
+ if !p0 jump 5f /* skip initial word store */
+ }
+ {
+ memw(r8++#4) = r4
+ r3:2 = sub(r3:2, r7:6)
+ p0 = cmp.gtu(r2, #11)
+ if p1 jumpr r31
+ }
+ .falign
+5: /* skip initial word store */
+ {
+ r10 = lsr(r2, #3)
+ p1 = cmp.eq(r3, #1)
+ if !p0 jump 7f /* skip double loop */
+ }
+ {
+ r5 = r4
+ r6 = #8
+ loop0(6f, r10) /* double loop */
+ }
+
+/* set bytes a double word at a time */
+
+ .falign
+6: /* double loop */
+ {
+ memd(r8++#8) = r5:4
+ r3:2 = sub(r3:2, r7:6)
+ p1 = cmp.eq(r2, #8)
+ }:endloop0
+ .falign
+7: /* skip double loop */
+ {
+ p0 = tstbit(r2, #2)
+ if p1 jumpr r31
+ }
+ {
+ r6 = #4
+ p0 = tstbit(r2, #1)
+ p1 = cmp.eq(r2, #4)
+ if !p0 jump 8f /* skip final word store */
+ }
+ {
+ memw(r8++#4) = r4
+ r3:2 = sub(r3:2, r7:6)
+ if p1 jumpr r31
+ }
+ .falign
+8: /* skip final word store */
+ {
+ p1 = cmp.eq(r2, #2)
+ if !p0 jump 9f /* skip final half store */
+ }
+ {
+ memh(r8++#2) = r4
+ if p1 jumpr r31
+ }
+ .falign
+9: /* skip final half store */
+ {
+ memb(r8++#1) = r4
+ jumpr r31
+ }
+HEXAGON_OPT_FUNC_FINISH memset
+#endif
+
+
+/* FUNCTION: memset (v3 and higher version) */
+#if __HEXAGON_ARCH__ >= 3
+HEXAGON_OPT_FUNC_BEGIN memset
+ {
+ r7=vsplatb(r1)
+ r6 = r0
+ if (r2==#0) jump:nt .L1
+ }
+ {
+ r5:4=combine(r7,r7)
+ p0 = cmp.gtu(r2,#8)
+ if (p0.new) jump:nt .L3
+ }
+ {
+ r3 = r0
+ loop0(.L47,r2)
+ }
+ .falign
+.L47:
+ {
+ memb(r3++#1) = r1
+ }:endloop0 /* start=.L47 */
+ jumpr r31
+.L3:
+ {
+ p0 = tstbit(r0,#0)
+ if (!p0.new) jump:nt .L8
+ p1 = cmp.eq(r2, #1)
+ }
+ {
+ r6 = add(r0, #1)
+ r2 = add(r2,#-1)
+ memb(r0) = r1
+ if (p1) jump .L1
+ }
+.L8:
+ {
+ p0 = tstbit(r6,#1)
+ if (!p0.new) jump:nt .L10
+ }
+ {
+ r2 = add(r2,#-2)
+ memh(r6++#2) = r7
+ p0 = cmp.eq(r2, #2)
+ if (p0.new) jump:nt .L1
+ }
+.L10:
+ {
+ p0 = tstbit(r6,#2)
+ if (!p0.new) jump:nt .L12
+ }
+ {
+ r2 = add(r2,#-4)
+ memw(r6++#4) = r7
+ p0 = cmp.eq(r2, #4)
+ if (p0.new) jump:nt .L1
+ }
+.L12:
+ {
+ p0 = cmp.gtu(r2,#127)
+ if (!p0.new) jump:nt .L14
+ }
+ r3 = and(r6,#31)
+ if (r3==#0) jump:nt .L17
+ {
+ memd(r6++#8) = r5:4
+ r2 = add(r2,#-8)
+ }
+ r3 = and(r6,#31)
+ if (r3==#0) jump:nt .L17
+ {
+ memd(r6++#8) = r5:4
+ r2 = add(r2,#-8)
+ }
+ r3 = and(r6,#31)
+ if (r3==#0) jump:nt .L17
+ {
+ memd(r6++#8) = r5:4
+ r2 = add(r2,#-8)
+ }
+.L17:
+ {
+ r3 = lsr(r2,#5)
+ if (r1!=#0) jump:nt .L18
+ }
+ {
+ r8 = r3
+ r3 = r6
+ loop0(.L46,r3)
+ }
+ .falign
+.L46:
+ {
+ dczeroa(r6)
+ r6 = add(r6,#32)
+ r2 = add(r2,#-32)
+ }:endloop0 /* start=.L46 */
+.L14:
+ {
+ p0 = cmp.gtu(r2,#7)
+ if (!p0.new) jump:nt .L28
+ r8 = lsr(r2,#3)
+ }
+ loop0(.L44,r8)
+ .falign
+.L44:
+ {
+ memd(r6++#8) = r5:4
+ r2 = add(r2,#-8)
+ }:endloop0 /* start=.L44 */
+.L28:
+ {
+ p0 = tstbit(r2,#2)
+ if (!p0.new) jump:nt .L33
+ }
+ {
+ r2 = add(r2,#-4)
+ memw(r6++#4) = r7
+ }
+.L33:
+ {
+ p0 = tstbit(r2,#1)
+ if (!p0.new) jump:nt .L35
+ }
+ {
+ r2 = add(r2,#-2)
+ memh(r6++#2) = r7
+ }
+.L35:
+ p0 = cmp.eq(r2,#1)
+ if (p0) memb(r6) = r1
+.L1:
+ jumpr r31
+.L18:
+ loop0(.L45,r3)
+ .falign
+.L45:
+ dczeroa(r6)
+ {
+ memd(r6++#8) = r5:4
+ r2 = add(r2,#-32)
+ }
+ memd(r6++#8) = r5:4
+ memd(r6++#8) = r5:4
+ {
+ memd(r6++#8) = r5:4
+ }:endloop0 /* start=.L45 */
+ jump .L14
+HEXAGON_OPT_FUNC_FINISH memset
+#endif