April 2022 - Linux-stable-mirror

FAILED: patch "[PATCH] drm/amd/vcn: fix an error msg on vcn 3.0" failed to apply to 5.16-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.16-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From dda81d9761d07541c404dd5fa93e773a8eda5ddc Mon Sep 17 00:00:00 2001 From: tiancyin <tianci.yin(a)amd.com> Date: Sun, 27 Mar 2022 19:07:13 +0800 Subject: [PATCH] drm/amd/vcn: fix an error msg on vcn 3.0 Some video card has more than one vcn instance, passing 0 to vcn_v3_0_pause_dpg_mode is incorrect. Error msg: Register(1) [mmUVD_POWER_STATUS] failed to reach value 0x00000001 != 0x00000002 Reviewed-by: James Zhu <James.Zhu(a)amd.com> Signed-off-by: tiancyin <tianci.yin(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c index e1cca0a10653..cb5f0a12333f 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c @@ -1488,7 +1488,7 @@ static int vcn_v3_0_stop_dpg_mode(struct amdgpu_device *adev, int inst_idx) struct dpg_pause_state state = {.fw_based = VCN_DPG_STATE__UNPAUSE}; uint32_t tmp; - vcn_v3_0_pause_dpg_mode(adev, 0, &state); + vcn_v3_0_pause_dpg_mode(adev, inst_idx, &state); /* Wait for power status to be 1 */ SOC15_WAIT_ON_RREG(VCN, inst_idx, mmUVD_POWER_STATUS, 1,

2 years, 9 months

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FAILED: patch "[PATCH] drm/amd/vcn: fix an error msg on vcn 3.0" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From dda81d9761d07541c404dd5fa93e773a8eda5ddc Mon Sep 17 00:00:00 2001 From: tiancyin <tianci.yin(a)amd.com> Date: Sun, 27 Mar 2022 19:07:13 +0800 Subject: [PATCH] drm/amd/vcn: fix an error msg on vcn 3.0 Some video card has more than one vcn instance, passing 0 to vcn_v3_0_pause_dpg_mode is incorrect. Error msg: Register(1) [mmUVD_POWER_STATUS] failed to reach value 0x00000001 != 0x00000002 Reviewed-by: James Zhu <James.Zhu(a)amd.com> Signed-off-by: tiancyin <tianci.yin(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c index e1cca0a10653..cb5f0a12333f 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c @@ -1488,7 +1488,7 @@ static int vcn_v3_0_stop_dpg_mode(struct amdgpu_device *adev, int inst_idx) struct dpg_pause_state state = {.fw_based = VCN_DPG_STATE__UNPAUSE}; uint32_t tmp; - vcn_v3_0_pause_dpg_mode(adev, 0, &state); + vcn_v3_0_pause_dpg_mode(adev, inst_idx, &state); /* Wait for power status to be 1 */ SOC15_WAIT_ON_RREG(VCN, inst_idx, mmUVD_POWER_STATUS, 1,

2 years, 9 months

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FAILED: patch "[PATCH] drm/amd/vcn: fix an error msg on vcn 3.0" failed to apply to 5.17-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.17-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From dda81d9761d07541c404dd5fa93e773a8eda5ddc Mon Sep 17 00:00:00 2001 From: tiancyin <tianci.yin(a)amd.com> Date: Sun, 27 Mar 2022 19:07:13 +0800 Subject: [PATCH] drm/amd/vcn: fix an error msg on vcn 3.0 Some video card has more than one vcn instance, passing 0 to vcn_v3_0_pause_dpg_mode is incorrect. Error msg: Register(1) [mmUVD_POWER_STATUS] failed to reach value 0x00000001 != 0x00000002 Reviewed-by: James Zhu <James.Zhu(a)amd.com> Signed-off-by: tiancyin <tianci.yin(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c index e1cca0a10653..cb5f0a12333f 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c @@ -1488,7 +1488,7 @@ static int vcn_v3_0_stop_dpg_mode(struct amdgpu_device *adev, int inst_idx) struct dpg_pause_state state = {.fw_based = VCN_DPG_STATE__UNPAUSE}; uint32_t tmp; - vcn_v3_0_pause_dpg_mode(adev, 0, &state); + vcn_v3_0_pause_dpg_mode(adev, inst_idx, &state); /* Wait for power status to be 1 */ SOC15_WAIT_ON_RREG(VCN, inst_idx, mmUVD_POWER_STATUS, 1,

2 years, 9 months

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FAILED: patch "[PATCH] drm/nouveau/pmu: Add missing callbacks for Tegra devices" failed to apply to 5.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 38d4e5cf5b08798f093374e53c2f4609d5382dd5 Mon Sep 17 00:00:00 2001 From: Karol Herbst <kherbst(a)redhat.com> Date: Tue, 22 Mar 2022 13:48:00 +0100 Subject: [PATCH] drm/nouveau/pmu: Add missing callbacks for Tegra devices Fixes a crash booting on those platforms with nouveau. Fixes: 4cdd2450bf73 ("drm/nouveau/pmu/gm200-: use alternate falcon reset sequence") Cc: Ben Skeggs <bskeggs(a)redhat.com> Cc: Karol Herbst <kherbst(a)redhat.com> Cc: dri-devel(a)lists.freedesktop.org Cc: nouveau(a)lists.freedesktop.org Cc: <stable(a)vger.kernel.org> # v5.17+ Signed-off-by: Karol Herbst <kherbst(a)redhat.com> Reviewed-by: Lyude Paul <lyude(a)redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220322124800.2605463-1-kher… diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c index e1772211b0a4..612310d5d481 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c @@ -216,6 +216,7 @@ gm20b_pmu = { .intr = gt215_pmu_intr, .recv = gm20b_pmu_recv, .initmsg = gm20b_pmu_initmsg, + .reset = gf100_pmu_reset, }; #if IS_ENABLED(CONFIG_ARCH_TEGRA_210_SOC) diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c index 6bf7fc1bd1e3..1a6f9c3af5ec 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c @@ -23,7 +23,7 @@ */ #include "priv.h" -static void +void gp102_pmu_reset(struct nvkm_pmu *pmu) { struct nvkm_device *device = pmu->subdev.device; diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c index ba1583bb618b..94cfb1791af6 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c @@ -83,6 +83,7 @@ gp10b_pmu = { .intr = gt215_pmu_intr, .recv = gm20b_pmu_recv, .initmsg = gm20b_pmu_initmsg, + .reset = gp102_pmu_reset, }; #if IS_ENABLED(CONFIG_ARCH_TEGRA_210_SOC) diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h index bcaade758ff7..21abf31f4442 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h @@ -41,6 +41,7 @@ int gt215_pmu_send(struct nvkm_pmu *, u32[2], u32, u32, u32, u32); bool gf100_pmu_enabled(struct nvkm_pmu *); void gf100_pmu_reset(struct nvkm_pmu *); +void gp102_pmu_reset(struct nvkm_pmu *pmu); void gk110_pmu_pgob(struct nvkm_pmu *, bool);

2 years, 9 months

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FAILED: patch "[PATCH] drm/nouveau/pmu: Add missing callbacks for Tegra devices" failed to apply to 4.14-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 38d4e5cf5b08798f093374e53c2f4609d5382dd5 Mon Sep 17 00:00:00 2001 From: Karol Herbst <kherbst(a)redhat.com> Date: Tue, 22 Mar 2022 13:48:00 +0100 Subject: [PATCH] drm/nouveau/pmu: Add missing callbacks for Tegra devices Fixes a crash booting on those platforms with nouveau. Fixes: 4cdd2450bf73 ("drm/nouveau/pmu/gm200-: use alternate falcon reset sequence") Cc: Ben Skeggs <bskeggs(a)redhat.com> Cc: Karol Herbst <kherbst(a)redhat.com> Cc: dri-devel(a)lists.freedesktop.org Cc: nouveau(a)lists.freedesktop.org Cc: <stable(a)vger.kernel.org> # v5.17+ Signed-off-by: Karol Herbst <kherbst(a)redhat.com> Reviewed-by: Lyude Paul <lyude(a)redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220322124800.2605463-1-kher… diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c index e1772211b0a4..612310d5d481 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c @@ -216,6 +216,7 @@ gm20b_pmu = { .intr = gt215_pmu_intr, .recv = gm20b_pmu_recv, .initmsg = gm20b_pmu_initmsg, + .reset = gf100_pmu_reset, }; #if IS_ENABLED(CONFIG_ARCH_TEGRA_210_SOC) diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c index 6bf7fc1bd1e3..1a6f9c3af5ec 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c @@ -23,7 +23,7 @@ */ #include "priv.h" -static void +void gp102_pmu_reset(struct nvkm_pmu *pmu) { struct nvkm_device *device = pmu->subdev.device; diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c index ba1583bb618b..94cfb1791af6 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c @@ -83,6 +83,7 @@ gp10b_pmu = { .intr = gt215_pmu_intr, .recv = gm20b_pmu_recv, .initmsg = gm20b_pmu_initmsg, + .reset = gp102_pmu_reset, }; #if IS_ENABLED(CONFIG_ARCH_TEGRA_210_SOC) diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h index bcaade758ff7..21abf31f4442 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h @@ -41,6 +41,7 @@ int gt215_pmu_send(struct nvkm_pmu *, u32[2], u32, u32, u32, u32); bool gf100_pmu_enabled(struct nvkm_pmu *); void gf100_pmu_reset(struct nvkm_pmu *); +void gp102_pmu_reset(struct nvkm_pmu *pmu); void gk110_pmu_pgob(struct nvkm_pmu *, bool);

2 years, 9 months

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FAILED: patch "[PATCH] drm/nouveau/pmu: Add missing callbacks for Tegra devices" failed to apply to 4.19-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 38d4e5cf5b08798f093374e53c2f4609d5382dd5 Mon Sep 17 00:00:00 2001 From: Karol Herbst <kherbst(a)redhat.com> Date: Tue, 22 Mar 2022 13:48:00 +0100 Subject: [PATCH] drm/nouveau/pmu: Add missing callbacks for Tegra devices Fixes a crash booting on those platforms with nouveau. Fixes: 4cdd2450bf73 ("drm/nouveau/pmu/gm200-: use alternate falcon reset sequence") Cc: Ben Skeggs <bskeggs(a)redhat.com> Cc: Karol Herbst <kherbst(a)redhat.com> Cc: dri-devel(a)lists.freedesktop.org Cc: nouveau(a)lists.freedesktop.org Cc: <stable(a)vger.kernel.org> # v5.17+ Signed-off-by: Karol Herbst <kherbst(a)redhat.com> Reviewed-by: Lyude Paul <lyude(a)redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220322124800.2605463-1-kher… diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c index e1772211b0a4..612310d5d481 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c @@ -216,6 +216,7 @@ gm20b_pmu = { .intr = gt215_pmu_intr, .recv = gm20b_pmu_recv, .initmsg = gm20b_pmu_initmsg, + .reset = gf100_pmu_reset, }; #if IS_ENABLED(CONFIG_ARCH_TEGRA_210_SOC) diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c index 6bf7fc1bd1e3..1a6f9c3af5ec 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c @@ -23,7 +23,7 @@ */ #include "priv.h" -static void +void gp102_pmu_reset(struct nvkm_pmu *pmu) { struct nvkm_device *device = pmu->subdev.device; diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c index ba1583bb618b..94cfb1791af6 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c @@ -83,6 +83,7 @@ gp10b_pmu = { .intr = gt215_pmu_intr, .recv = gm20b_pmu_recv, .initmsg = gm20b_pmu_initmsg, + .reset = gp102_pmu_reset, }; #if IS_ENABLED(CONFIG_ARCH_TEGRA_210_SOC) diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h index bcaade758ff7..21abf31f4442 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h @@ -41,6 +41,7 @@ int gt215_pmu_send(struct nvkm_pmu *, u32[2], u32, u32, u32, u32); bool gf100_pmu_enabled(struct nvkm_pmu *); void gf100_pmu_reset(struct nvkm_pmu *); +void gp102_pmu_reset(struct nvkm_pmu *pmu); void gk110_pmu_pgob(struct nvkm_pmu *, bool);

2 years, 9 months

1
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[PATCH v16 1/4] tty: goldfish: introduce gf_ioread32()/gf_iowrite32()

by Laurent Vivier

Revert commit da31de35cd2f ("tty: goldfish: use __raw_writel()/__raw_readl()") and define gf_ioread32()/gf_iowrite32() to be able to use accessors defined by the architecture. Cc: stable(a)vger.kernel.org # v5.11+ Fixes: da31de35cd2f ("tty: goldfish: use __raw_writel()/__raw_readl()") Signed-off-by: Laurent Vivier <laurent(a)vivier.eu> Reviewed-by: Geert Uytterhoeven <geert(a)linux-m68k.org> --- drivers/tty/goldfish.c | 20 ++++++++++---------- include/linux/goldfish.h | 15 +++++++++++---- 2 files changed, 21 insertions(+), 14 deletions(-) diff --git a/drivers/tty/goldfish.c b/drivers/tty/goldfish.c index ad13532e92fe..9e8ccb8ed6d6 100644 --- a/drivers/tty/goldfish.c +++ b/drivers/tty/goldfish.c @@ -61,13 +61,13 @@ static void do_rw_io(struct goldfish_tty *qtty, spin_lock_irqsave(&qtty->lock, irq_flags); gf_write_ptr((void *)address, base + GOLDFISH_TTY_REG_DATA_PTR, base + GOLDFISH_TTY_REG_DATA_PTR_HIGH); - __raw_writel(count, base + GOLDFISH_TTY_REG_DATA_LEN); + gf_iowrite32(count, base + GOLDFISH_TTY_REG_DATA_LEN); if (is_write) - __raw_writel(GOLDFISH_TTY_CMD_WRITE_BUFFER, + gf_iowrite32(GOLDFISH_TTY_CMD_WRITE_BUFFER, base + GOLDFISH_TTY_REG_CMD); else - __raw_writel(GOLDFISH_TTY_CMD_READ_BUFFER, + gf_iowrite32(GOLDFISH_TTY_CMD_READ_BUFFER, base + GOLDFISH_TTY_REG_CMD); spin_unlock_irqrestore(&qtty->lock, irq_flags); @@ -142,7 +142,7 @@ static irqreturn_t goldfish_tty_interrupt(int irq, void *dev_id) unsigned char *buf; u32 count; - count = __raw_readl(base + GOLDFISH_TTY_REG_BYTES_READY); + count = gf_ioread32(base + GOLDFISH_TTY_REG_BYTES_READY); if (count == 0) return IRQ_NONE; @@ -159,7 +159,7 @@ static int goldfish_tty_activate(struct tty_port *port, struct tty_struct *tty) { struct goldfish_tty *qtty = container_of(port, struct goldfish_tty, port); - __raw_writel(GOLDFISH_TTY_CMD_INT_ENABLE, qtty->base + GOLDFISH_TTY_REG_CMD); + gf_iowrite32(GOLDFISH_TTY_CMD_INT_ENABLE, qtty->base + GOLDFISH_TTY_REG_CMD); return 0; } @@ -167,7 +167,7 @@ static void goldfish_tty_shutdown(struct tty_port *port) { struct goldfish_tty *qtty = container_of(port, struct goldfish_tty, port); - __raw_writel(GOLDFISH_TTY_CMD_INT_DISABLE, qtty->base + GOLDFISH_TTY_REG_CMD); + gf_iowrite32(GOLDFISH_TTY_CMD_INT_DISABLE, qtty->base + GOLDFISH_TTY_REG_CMD); } static int goldfish_tty_open(struct tty_struct *tty, struct file *filp) @@ -202,7 +202,7 @@ static unsigned int goldfish_tty_chars_in_buffer(struct tty_struct *tty) { struct goldfish_tty *qtty = &goldfish_ttys[tty->index]; void __iomem *base = qtty->base; - return __raw_readl(base + GOLDFISH_TTY_REG_BYTES_READY); + return gf_ioread32(base + GOLDFISH_TTY_REG_BYTES_READY); } static void goldfish_tty_console_write(struct console *co, const char *b, @@ -355,7 +355,7 @@ static int goldfish_tty_probe(struct platform_device *pdev) * on Ranchu emulator (qemu2) returns 1 here and * driver will use physical addresses. */ - qtty->version = __raw_readl(base + GOLDFISH_TTY_REG_VERSION); + qtty->version = gf_ioread32(base + GOLDFISH_TTY_REG_VERSION); /* * Goldfish TTY device on Ranchu emulator (qemu2) @@ -374,7 +374,7 @@ static int goldfish_tty_probe(struct platform_device *pdev) } } - __raw_writel(GOLDFISH_TTY_CMD_INT_DISABLE, base + GOLDFISH_TTY_REG_CMD); + gf_iowrite32(GOLDFISH_TTY_CMD_INT_DISABLE, base + GOLDFISH_TTY_REG_CMD); ret = request_irq(irq, goldfish_tty_interrupt, IRQF_SHARED, "goldfish_tty", qtty); @@ -436,7 +436,7 @@ static int goldfish_tty_remove(struct platform_device *pdev) #ifdef CONFIG_GOLDFISH_TTY_EARLY_CONSOLE static void gf_early_console_putchar(struct uart_port *port, unsigned char ch) { - __raw_writel(ch, port->membase); + gf_iowrite32(ch, port->membase); } static void gf_early_write(struct console *con, const char *s, unsigned int n) diff --git a/include/linux/goldfish.h b/include/linux/goldfish.h index 12be1601fd84..bcc17f95b906 100644 --- a/include/linux/goldfish.h +++ b/include/linux/goldfish.h @@ -8,14 +8,21 @@ /* Helpers for Goldfish virtual platform */ +#ifndef gf_ioread32 +#define gf_ioread32 ioread32 +#endif +#ifndef gf_iowrite32 +#define gf_iowrite32 iowrite32 +#endif + static inline void gf_write_ptr(const void *ptr, void __iomem *portl, void __iomem *porth) { const unsigned long addr = (unsigned long)ptr; - __raw_writel(lower_32_bits(addr), portl); + gf_iowrite32(lower_32_bits(addr), portl); #ifdef CONFIG_64BIT - __raw_writel(upper_32_bits(addr), porth); + gf_iowrite32(upper_32_bits(addr), porth); #endif } @@ -23,9 +30,9 @@ static inline void gf_write_dma_addr(const dma_addr_t addr, void __iomem *portl, void __iomem *porth) { - __raw_writel(lower_32_bits(addr), portl); + gf_iowrite32(lower_32_bits(addr), portl); #ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT - __raw_writel(upper_32_bits(addr), porth); + gf_iowrite32(upper_32_bits(addr), porth); #endif } -- 2.35.1

2 years, 9 months

3
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[PATCH] serial: imx: fix overrun interrupts in DMA mode

by Johan Hovold

Commit 76821e222c18 ("serial: imx: ensure that RX irqs are off if RX is off") accidentally enabled overrun interrupts unconditionally when deferring DMA enable until after the receiver has been enabled during startup. Fix this by using the DMA-initialised instead of DMA-enabled flag to determine whether overrun interrupts should be enabled. Note that overrun interrupts are already accounted for in imx_uart_clear_rx_errors() when using DMA since commit 41d98b5da92f ("serial: imx-serial - update RX error counters when DMA is used"). Fixes: 76821e222c18 ("serial: imx: ensure that RX irqs are off if RX is off") Cc: stable(a)vger.kernel.org # 4.17 Cc: Uwe Kleine-König <u.kleine-koenig(a)pengutronix.de> Signed-off-by: Johan Hovold <johan(a)kernel.org> --- drivers/tty/serial/imx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index fd38e6ed4fda..a2100be8d554 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -1448,7 +1448,7 @@ static int imx_uart_startup(struct uart_port *port) imx_uart_writel(sport, ucr1, UCR1); ucr4 = imx_uart_readl(sport, UCR4) & ~(UCR4_OREN | UCR4_INVR); - if (!sport->dma_is_enabled) + if (!dma_is_inited) ucr4 |= UCR4_OREN; if (sport->inverted_rx) ucr4 |= UCR4_INVR; -- 2.35.1

2 years, 9 months

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FAILED: patch "[PATCH] random: skip fast_init if hwrng provides large chunk of" failed to apply to 5.17-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.17-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From af704c856e888fb044b058d731d61b46eeec499d Mon Sep 17 00:00:00 2001 From: "Jason A. Donenfeld" <Jason(a)zx2c4.com> Date: Mon, 21 Mar 2022 18:48:05 -0600 Subject: [PATCH] random: skip fast_init if hwrng provides large chunk of entropy At boot time, EFI calls add_bootloader_randomness(), which in turn calls add_hwgenerator_randomness(). Currently add_hwgenerator_randomness() feeds the first 64 bytes of randomness to the "fast init" non-crypto-grade phase. But if add_hwgenerator_randomness() gets called with more than POOL_MIN_BITS of entropy, there's no point in passing it off to the "fast init" stage, since that's enough entropy to bootstrap the real RNG. The "fast init" stage is just there to provide _something_ in the case where we don't have enough entropy to properly bootstrap the RNG. But if we do have enough entropy to bootstrap the RNG, the current logic doesn't serve a purpose. So, in the case where we're passed greater than or equal to POOL_MIN_BITS of entropy, this commit makes us skip the "fast init" phase. Cc: Dominik Brodowski <linux(a)dominikbrodowski.net> Signed-off-by: Jason A. Donenfeld <Jason(a)zx2c4.com> diff --git a/drivers/char/random.c b/drivers/char/random.c index 66ce7c03a142..74e0b069972e 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -1128,7 +1128,7 @@ void rand_initialize_disk(struct gendisk *disk) void add_hwgenerator_randomness(const void *buffer, size_t count, size_t entropy) { - if (unlikely(crng_init == 0)) { + if (unlikely(crng_init == 0 && entropy < POOL_MIN_BITS)) { size_t ret = crng_pre_init_inject(buffer, count, true); mix_pool_bytes(buffer, ret); count -= ret;

2 years, 9 months

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FAILED: patch "[PATCH] random: do not split fast init input in" failed to apply to 5.17-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.17-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 527a9867af29ff89f278d037db704e0ed50fb666 Mon Sep 17 00:00:00 2001 From: Jan Varho <jan.varho(a)gmail.com> Date: Mon, 4 Apr 2022 19:42:30 +0300 Subject: [PATCH] random: do not split fast init input in add_hwgenerator_randomness() add_hwgenerator_randomness() tries to only use the required amount of input for fast init, but credits all the entropy, rather than a fraction of it. Since it's hard to determine how much entropy is left over out of a non-unformly random sample, either give it all to fast init or credit it, but don't attempt to do both. In the process, we can clean up the injection code to no longer need to return a value. Signed-off-by: Jan Varho <jan.varho(a)gmail.com> [Jason: expanded commit message] Fixes: 73c7733f122e ("random: do not throw away excess input to crng_fast_load") Cc: stable(a)vger.kernel.org # 5.17+, requires af704c856e88 Signed-off-by: Jason A. Donenfeld <Jason(a)zx2c4.com> diff --git a/drivers/char/random.c b/drivers/char/random.c index 1d8242969751..ee3ad2ba0942 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -437,11 +437,8 @@ static void crng_make_state(u32 chacha_state[CHACHA_STATE_WORDS], * This shouldn't be set by functions like add_device_randomness(), * where we can't trust the buffer passed to it is guaranteed to be * unpredictable (so it might not have any entropy at all). - * - * Returns the number of bytes processed from input, which is bounded - * by CRNG_INIT_CNT_THRESH if account is true. */ -static size_t crng_pre_init_inject(const void *input, size_t len, bool account) +static void crng_pre_init_inject(const void *input, size_t len, bool account) { static int crng_init_cnt = 0; struct blake2s_state hash; @@ -452,18 +449,15 @@ static size_t crng_pre_init_inject(const void *input, size_t len, bool account) spin_lock_irqsave(&base_crng.lock, flags); if (crng_init != 0) { spin_unlock_irqrestore(&base_crng.lock, flags); - return 0; + return; } - if (account) - len = min_t(size_t, len, CRNG_INIT_CNT_THRESH - crng_init_cnt); - blake2s_update(&hash, base_crng.key, sizeof(base_crng.key)); blake2s_update(&hash, input, len); blake2s_final(&hash, base_crng.key); if (account) { - crng_init_cnt += len; + crng_init_cnt += min_t(size_t, len, CRNG_INIT_CNT_THRESH - crng_init_cnt); if (crng_init_cnt >= CRNG_INIT_CNT_THRESH) { ++base_crng.generation; crng_init = 1; @@ -474,8 +468,6 @@ static size_t crng_pre_init_inject(const void *input, size_t len, bool account) if (crng_init == 1) pr_notice("fast init done\n"); - - return len; } static void _get_random_bytes(void *buf, size_t nbytes) @@ -1141,12 +1133,9 @@ void add_hwgenerator_randomness(const void *buffer, size_t count, size_t entropy) { if (unlikely(crng_init == 0 && entropy < POOL_MIN_BITS)) { - size_t ret = crng_pre_init_inject(buffer, count, true); - mix_pool_bytes(buffer, ret); - count -= ret; - buffer += ret; - if (!count || crng_init == 0) - return; + crng_pre_init_inject(buffer, count, true); + mix_pool_bytes(buffer, count); + return; } /*

2 years, 9 months

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