* FAILED: patch "[PATCH] media: iris: Fix power-off ordering to disable power domain after clocks" failed to apply to 6.18-stable tree
@ 2026-11-07 10:07 Sasha Levin
2026-11-10 19:17 ` [PATCH 6.18.y 1/3] media: iris: Move vpu register defines to common header file Sasha Levin
0 siblings, 1 reply; 4+ messages in thread
From: Sasha Levin @ 2026-11-07 10:07 UTC (permalink / raw)
To: busanna.reddy, bryan.odonoghue, bod; +Cc: stable
The patch below does not apply to the 6.18-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@vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.18.y
git checkout FETCH_HEAD
git cherry-pick -x 9cfae7726a9a9f526e8905dbddde355be2674e3d
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '20261107050739-failed-6.18-9cfae7726a9a@kernel.org' --subject-prefix 'PATCH 6.18.y' 'HEAD^..'
Thanks,
Sasha
------------------ original commit in Linus's tree ------------------
From 9cfae7726a9a9f526e8905dbddde355be2674e3d Mon Sep 17 00:00:00 2001
From: Vishnu Reddy <busanna.reddy@oss.qualcomm.com>
Date: Tue, 18 Aug 2026 21:24:17 +0530
Subject: [PATCH] media: iris: Fix power-off ordering to disable power domain
after clocks
In iris_vpu_power_off_hw(), iris_disable_power_domains() was called
before the associated clocks (IRIS_BSE_HW_CLK, IRIS_HW_AHB_CLK,
IRIS_HW_CLK) were disabled and unprepared. This reverses the correct
power-down sequence: with the power domain already removed, the
subsequent clk_disable_unprepare() calls end up operating on
clock-controller hardware that is no longer powered, which can hang
or behave unpredictably.
Reorder the calls so iris_disable_power_domains() runs after all
three clocks are disabled, ensuring clocks are always turned off
while their power domain is still active, and mirroring the reverse
of the power-on sequence.
Fixes: bb8a95aa038e ("media: iris: implement power management")
Cc: stable@vger.kernel.org
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Vishnu Reddy <busanna.reddy@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
---
drivers/media/platform/qcom/iris/iris_vpu_common.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/platform/qcom/iris/iris_vpu_common.c b/drivers/media/platform/qcom/iris/iris_vpu_common.c
index 2ef8004e976e3..c9f5dc851d9f7 100644
--- a/drivers/media/platform/qcom/iris/iris_vpu_common.c
+++ b/drivers/media/platform/qcom/iris/iris_vpu_common.c
@@ -223,10 +223,10 @@ int iris_vpu_power_off_controller(struct iris_core *core)
void iris_vpu_power_off_hw(struct iris_core *core)
{
dev_pm_genpd_set_hwmode(core->pmdomain_tbl->pd_devs[IRIS_HW_POWER_DOMAIN], false);
- iris_disable_power_domains(core, core->pmdomain_tbl->pd_devs[IRIS_HW_POWER_DOMAIN]);
iris_disable_unprepare_clock(core, IRIS_BSE_HW_CLK);
iris_disable_unprepare_clock(core, IRIS_HW_AHB_CLK);
iris_disable_unprepare_clock(core, IRIS_HW_CLK);
+ iris_disable_power_domains(core, core->pmdomain_tbl->pd_devs[IRIS_HW_POWER_DOMAIN]);
}
void iris_vpu_power_off(struct iris_core *core)
--
2.53.0
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH 6.18.y 1/3] media: iris: Move vpu register defines to common header file 2026-11-07 10:07 FAILED: patch "[PATCH] media: iris: Fix power-off ordering to disable power domain after clocks" failed to apply to 6.18-stable tree Sasha Levin @ 2026-11-10 19:17 ` Sasha Levin 2026-11-10 19:17 ` [PATCH 6.18.y 2/3] media: iris: Move vpu35 specific api to common to use for vpu4 Sasha Levin 2026-11-10 19:17 ` [PATCH 6.18.y 3/3] media: iris: Fix power-off ordering to disable power domain after clocks Sasha Levin 0 siblings, 2 replies; 4+ messages in thread From: Sasha Levin @ 2026-11-10 19:17 UTC (permalink / raw) To: stable Cc: Vikash Garodia, Bryan O'Donoghue, Vishnu Reddy, Dikshita Agarwal, Dmitry Baryshkov, Bryan O'Donoghue, Hans Verkuil, Sasha Levin From: Vikash Garodia <vikash.garodia@oss.qualcomm.com> [ Upstream commit 2fc9b85dea50497f2264863d2f398bd1cfa5375b ] Some of vpu4 register defines are common with vpu3x. Move those into the common register defines header. This is done to reuse the defines for vpu4 in subsequent patch which enables the power sequence for vpu4. Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Co-developed-by: Vishnu Reddy <busanna.reddy@oss.qualcomm.com> Signed-off-by: Vishnu Reddy <busanna.reddy@oss.qualcomm.com> Signed-off-by: Vikash Garodia <vikash.garodia@oss.qualcomm.com> Reviewed-by: Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com> Co-developed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Bryan O'Donoghue <bod@kernel.org> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org> Stable-dep-of: 9cfae7726a9a ("media: iris: Fix power-off ordering to disable power domain after clocks") Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/media/platform/qcom/iris/iris_vpu3x.c | 42 ------------- .../platform/qcom/iris/iris_vpu_common.c | 43 ------------- .../qcom/iris/iris_vpu_register_defines.h | 61 +++++++++++++++++++ 3 files changed, 61 insertions(+), 85 deletions(-) diff --git a/drivers/media/platform/qcom/iris/iris_vpu3x.c b/drivers/media/platform/qcom/iris/iris_vpu3x.c index 339776a0b4672..cd53bcda3b3e1 100644 --- a/drivers/media/platform/qcom/iris/iris_vpu3x.c +++ b/drivers/media/platform/qcom/iris/iris_vpu3x.c @@ -11,48 +11,6 @@ #include "iris_vpu_common.h" #include "iris_vpu_register_defines.h" -#define WRAPPER_TZ_BASE_OFFS 0x000C0000 -#define AON_BASE_OFFS 0x000E0000 -#define AON_MVP_NOC_RESET 0x0001F000 - -#define WRAPPER_DEBUG_BRIDGE_LPI_CONTROL (WRAPPER_BASE_OFFS + 0x54) -#define WRAPPER_DEBUG_BRIDGE_LPI_STATUS (WRAPPER_BASE_OFFS + 0x58) -#define WRAPPER_IRIS_CPU_NOC_LPI_CONTROL (WRAPPER_BASE_OFFS + 0x5C) -#define REQ_POWER_DOWN_PREP BIT(0) -#define WRAPPER_IRIS_CPU_NOC_LPI_STATUS (WRAPPER_BASE_OFFS + 0x60) -#define NOC_LPI_STATUS_DONE BIT(0) /* Indicates the NOC handshake is complete */ -#define NOC_LPI_STATUS_DENY BIT(1) /* Indicates the NOC handshake is denied */ -#define NOC_LPI_STATUS_ACTIVE BIT(2) /* Indicates the NOC is active */ -#define WRAPPER_CORE_CLOCK_CONFIG (WRAPPER_BASE_OFFS + 0x88) -#define CORE_CLK_RUN 0x0 -/* VPU v3.5 */ -#define WRAPPER_IRIS_VCODEC_VPU_WRAPPER_SPARE_0 (WRAPPER_BASE_OFFS + 0x78) - -#define WRAPPER_TZ_CTL_AXI_CLOCK_CONFIG (WRAPPER_TZ_BASE_OFFS + 0x14) -#define CTL_AXI_CLK_HALT BIT(0) -#define CTL_CLK_HALT BIT(1) - -#define WRAPPER_TZ_QNS4PDXFIFO_RESET (WRAPPER_TZ_BASE_OFFS + 0x18) -#define RESET_HIGH BIT(0) - -#define CPU_CS_AHB_BRIDGE_SYNC_RESET (CPU_CS_BASE_OFFS + 0x160) -#define CORE_BRIDGE_SW_RESET BIT(0) -#define CORE_BRIDGE_HW_RESET_DISABLE BIT(1) - -#define CPU_CS_X2RPMH (CPU_CS_BASE_OFFS + 0x168) -#define MSK_SIGNAL_FROM_TENSILICA BIT(0) -#define MSK_CORE_POWER_ON BIT(1) - -#define AON_WRAPPER_MVP_NOC_RESET_REQ (AON_MVP_NOC_RESET + 0x000) -#define VIDEO_NOC_RESET_REQ (BIT(0) | BIT(1)) - -#define AON_WRAPPER_MVP_NOC_RESET_ACK (AON_MVP_NOC_RESET + 0x004) - -#define VCODEC_SS_IDLE_STATUSN (VCODEC_BASE_OFFS + 0x70) - -#define AON_WRAPPER_MVP_NOC_LPI_CONTROL (AON_BASE_OFFS) -#define AON_WRAPPER_MVP_NOC_LPI_STATUS (AON_BASE_OFFS + 0x4) - #define AON_WRAPPER_MVP_NOC_CORE_SW_RESET (AON_BASE_OFFS + 0x18) #define SW_RESET BIT(0) #define AON_WRAPPER_MVP_NOC_CORE_CLK_CONTROL (AON_BASE_OFFS + 0x20) diff --git a/drivers/media/platform/qcom/iris/iris_vpu_common.c b/drivers/media/platform/qcom/iris/iris_vpu_common.c index 6839e293d9b50..38a11002327db 100644 --- a/drivers/media/platform/qcom/iris/iris_vpu_common.c +++ b/drivers/media/platform/qcom/iris/iris_vpu_common.c @@ -11,13 +11,6 @@ #include "iris_vpu_common.h" #include "iris_vpu_register_defines.h" -#define WRAPPER_TZ_BASE_OFFS 0x000C0000 -#define AON_BASE_OFFS 0x000E0000 - -#define CPU_IC_BASE_OFFS (CPU_BASE_OFFS) - -#define CPU_CS_A2HSOFTINTCLR (CPU_CS_BASE_OFFS + 0x1C) -#define CLEAR_XTENSA2HOST_INTR BIT(0) #define CTRL_INIT (CPU_CS_BASE_OFFS + 0x48) #define CTRL_STATUS (CPU_CS_BASE_OFFS + 0x4C) @@ -35,42 +28,6 @@ #define UC_REGION_ADDR (CPU_CS_BASE_OFFS + 0x64) #define UC_REGION_SIZE (CPU_CS_BASE_OFFS + 0x68) -#define CPU_CS_H2XSOFTINTEN (CPU_CS_BASE_OFFS + 0x148) -#define HOST2XTENSA_INTR_ENABLE BIT(0) - -#define CPU_CS_X2RPMH (CPU_CS_BASE_OFFS + 0x168) -#define MSK_SIGNAL_FROM_TENSILICA BIT(0) -#define MSK_CORE_POWER_ON BIT(1) - -#define CPU_IC_SOFTINT (CPU_IC_BASE_OFFS + 0x150) -#define CPU_IC_SOFTINT_H2A_SHFT 0x0 - -#define WRAPPER_INTR_STATUS (WRAPPER_BASE_OFFS + 0x0C) -#define WRAPPER_INTR_STATUS_A2HWD_BMSK BIT(3) -#define WRAPPER_INTR_STATUS_A2H_BMSK BIT(2) - -#define WRAPPER_INTR_MASK (WRAPPER_BASE_OFFS + 0x10) -#define WRAPPER_INTR_MASK_A2HWD_BMSK BIT(3) -#define WRAPPER_INTR_MASK_A2HCPU_BMSK BIT(2) - -#define WRAPPER_DEBUG_BRIDGE_LPI_CONTROL (WRAPPER_BASE_OFFS + 0x54) -#define WRAPPER_DEBUG_BRIDGE_LPI_STATUS (WRAPPER_BASE_OFFS + 0x58) -#define WRAPPER_IRIS_CPU_NOC_LPI_CONTROL (WRAPPER_BASE_OFFS + 0x5C) -#define WRAPPER_IRIS_CPU_NOC_LPI_STATUS (WRAPPER_BASE_OFFS + 0x60) - -#define WRAPPER_TZ_CPU_STATUS (WRAPPER_TZ_BASE_OFFS + 0x10) -#define WRAPPER_TZ_CTL_AXI_CLOCK_CONFIG (WRAPPER_TZ_BASE_OFFS + 0x14) -#define CTL_AXI_CLK_HALT BIT(0) -#define CTL_CLK_HALT BIT(1) - -#define WRAPPER_TZ_QNS4PDXFIFO_RESET (WRAPPER_TZ_BASE_OFFS + 0x18) -#define RESET_HIGH BIT(0) - -#define AON_WRAPPER_MVP_NOC_LPI_CONTROL (AON_BASE_OFFS) -#define REQ_POWER_DOWN_PREP BIT(0) - -#define AON_WRAPPER_MVP_NOC_LPI_STATUS (AON_BASE_OFFS + 0x4) - static void iris_vpu_interrupt_init(struct iris_core *core) { u32 mask_val; diff --git a/drivers/media/platform/qcom/iris/iris_vpu_register_defines.h b/drivers/media/platform/qcom/iris/iris_vpu_register_defines.h index fe8a39e5e5a3f..72168b9ffa738 100644 --- a/drivers/media/platform/qcom/iris/iris_vpu_register_defines.h +++ b/drivers/media/platform/qcom/iris/iris_vpu_register_defines.h @@ -7,11 +7,72 @@ #define __IRIS_VPU_REGISTER_DEFINES_H__ #define VCODEC_BASE_OFFS 0x00000000 +#define AON_MVP_NOC_RESET 0x0001F000 #define CPU_BASE_OFFS 0x000A0000 #define WRAPPER_BASE_OFFS 0x000B0000 +#define WRAPPER_TZ_BASE_OFFS 0x000C0000 +#define AON_BASE_OFFS 0x000E0000 + +#define VCODEC_SS_IDLE_STATUSN (VCODEC_BASE_OFFS + 0x70) + +#define AON_WRAPPER_MVP_NOC_RESET_REQ (AON_MVP_NOC_RESET + 0x000) +#define VIDEO_NOC_RESET_REQ (BIT(0) | BIT(1)) + +#define AON_WRAPPER_MVP_NOC_RESET_ACK (AON_MVP_NOC_RESET + 0x004) #define CPU_CS_BASE_OFFS (CPU_BASE_OFFS) +#define CPU_IC_BASE_OFFS (CPU_BASE_OFFS) + +#define CPU_CS_A2HSOFTINTCLR (CPU_CS_BASE_OFFS + 0x1C) +#define CLEAR_XTENSA2HOST_INTR BIT(0) + +#define CPU_CS_H2XSOFTINTEN (CPU_CS_BASE_OFFS + 0x148) +#define HOST2XTENSA_INTR_ENABLE BIT(0) + +#define CPU_IC_SOFTINT (CPU_IC_BASE_OFFS + 0x150) +#define CPU_IC_SOFTINT_H2A_SHFT 0x0 + +#define CPU_CS_AHB_BRIDGE_SYNC_RESET (CPU_CS_BASE_OFFS + 0x160) +#define CORE_BRIDGE_SW_RESET BIT(0) +#define CORE_BRIDGE_HW_RESET_DISABLE BIT(1) + +#define CPU_CS_X2RPMH (CPU_CS_BASE_OFFS + 0x168) +#define MSK_SIGNAL_FROM_TENSILICA BIT(0) +#define MSK_CORE_POWER_ON BIT(1) +#define WRAPPER_INTR_STATUS (WRAPPER_BASE_OFFS + 0x0C) +#define WRAPPER_INTR_STATUS_A2HWD_BMSK BIT(3) +#define WRAPPER_INTR_STATUS_A2H_BMSK BIT(2) + +#define WRAPPER_INTR_MASK (WRAPPER_BASE_OFFS + 0x10) +#define WRAPPER_INTR_MASK_A2HWD_BMSK BIT(3) +#define WRAPPER_INTR_MASK_A2HCPU_BMSK BIT(2) + +#define WRAPPER_DEBUG_BRIDGE_LPI_CONTROL (WRAPPER_BASE_OFFS + 0x54) +#define WRAPPER_DEBUG_BRIDGE_LPI_STATUS (WRAPPER_BASE_OFFS + 0x58) +#define WRAPPER_IRIS_CPU_NOC_LPI_CONTROL (WRAPPER_BASE_OFFS + 0x5C) +#define REQ_POWER_DOWN_PREP BIT(0) + +#define WRAPPER_IRIS_CPU_NOC_LPI_STATUS (WRAPPER_BASE_OFFS + 0x60) +#define NOC_LPI_STATUS_DONE BIT(0) /* Indicates the NOC handshake is complete */ +#define NOC_LPI_STATUS_DENY BIT(1) /* Indicates the NOC handshake is denied */ +#define NOC_LPI_STATUS_ACTIVE BIT(2) /* Indicates the NOC is active */ + +#define WRAPPER_IRIS_VCODEC_VPU_WRAPPER_SPARE_0 (WRAPPER_BASE_OFFS + 0x78) #define WRAPPER_CORE_POWER_STATUS (WRAPPER_BASE_OFFS + 0x80) +#define WRAPPER_CORE_CLOCK_CONFIG (WRAPPER_BASE_OFFS + 0x88) +#define CORE_CLK_RUN 0x0 + +#define WRAPPER_TZ_CPU_STATUS (WRAPPER_TZ_BASE_OFFS + 0x10) + +#define WRAPPER_TZ_CTL_AXI_CLOCK_CONFIG (WRAPPER_TZ_BASE_OFFS + 0x14) +#define CTL_AXI_CLK_HALT BIT(0) +#define CTL_CLK_HALT BIT(1) + +#define WRAPPER_TZ_QNS4PDXFIFO_RESET (WRAPPER_TZ_BASE_OFFS + 0x18) +#define RESET_HIGH BIT(0) + +#define AON_WRAPPER_MVP_NOC_LPI_CONTROL (AON_BASE_OFFS) +#define AON_WRAPPER_MVP_NOC_LPI_STATUS (AON_BASE_OFFS + 0x4) #endif -- 2.53.0 ^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH 6.18.y 2/3] media: iris: Move vpu35 specific api to common to use for vpu4 2026-11-10 19:17 ` [PATCH 6.18.y 1/3] media: iris: Move vpu register defines to common header file Sasha Levin @ 2026-11-10 19:17 ` Sasha Levin 2026-11-10 19:17 ` [PATCH 6.18.y 3/3] media: iris: Fix power-off ordering to disable power domain after clocks Sasha Levin 1 sibling, 0 replies; 4+ messages in thread From: Sasha Levin @ 2026-11-10 19:17 UTC (permalink / raw) To: stable Cc: Vikash Garodia, Bryan O'Donoghue, Vishnu Reddy, Dikshita Agarwal, Bryan O'Donoghue, Hans Verkuil, Sasha Levin From: Vikash Garodia <vikash.garodia@oss.qualcomm.com> [ Upstream commit 82b96a8d8d6ebedcda8ef2d051ddd0f43d8eee14 ] Some of the sequence and calculations for vpu4 is identical to vpu35, namely power sequence for vpu controller and the clock frequency calculation. Move those to common file that can be shared for both vpu35 and vpu4. This patch prepares for power sequence for vpu4 which is added in subsequent patch. Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Co-developed-by: Vishnu Reddy <busanna.reddy@oss.qualcomm.com> Signed-off-by: Vishnu Reddy <busanna.reddy@oss.qualcomm.com> Signed-off-by: Vikash Garodia <vikash.garodia@oss.qualcomm.com> Reviewed-by: Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com> Signed-off-by: Bryan O'Donoghue <bod@kernel.org> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org> Stable-dep-of: 9cfae7726a9a ("media: iris: Fix power-off ordering to disable power domain after clocks") Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/media/platform/qcom/iris/iris_vpu3x.c | 157 +----------------- .../platform/qcom/iris/iris_vpu_common.c | 141 ++++++++++++++++ .../platform/qcom/iris/iris_vpu_common.h | 4 + 3 files changed, 151 insertions(+), 151 deletions(-) diff --git a/drivers/media/platform/qcom/iris/iris_vpu3x.c b/drivers/media/platform/qcom/iris/iris_vpu3x.c index cd53bcda3b3e1..fe4423b951b1e 100644 --- a/drivers/media/platform/qcom/iris/iris_vpu3x.c +++ b/drivers/media/platform/qcom/iris/iris_vpu3x.c @@ -16,8 +16,6 @@ #define AON_WRAPPER_MVP_NOC_CORE_CLK_CONTROL (AON_BASE_OFFS + 0x20) #define NOC_HALT BIT(0) #define AON_WRAPPER_SPARE (AON_BASE_OFFS + 0x28) -#define AON_WRAPPER_MVP_VIDEO_CTL_NOC_LPI_CONTROL (AON_BASE_OFFS + 0x2C) -#define AON_WRAPPER_MVP_VIDEO_CTL_NOC_LPI_STATUS (AON_BASE_OFFS + 0x30) static bool iris_vpu3x_hw_power_collapsed(struct iris_core *core) { @@ -262,155 +260,12 @@ static void iris_vpu35_power_off_hw(struct iris_core *core) iris_disable_unprepare_clock(core, IRIS_AXI_CLK); } -static int iris_vpu35_power_off_controller(struct iris_core *core) -{ - u32 clk_rst_tbl_size = core->iris_platform_data->clk_rst_tbl_size; - unsigned int count = 0; - u32 val = 0; - bool handshake_done, handshake_busy; - int ret; - - writel(MSK_SIGNAL_FROM_TENSILICA | MSK_CORE_POWER_ON, core->reg_base + CPU_CS_X2RPMH); - - writel(REQ_POWER_DOWN_PREP, core->reg_base + WRAPPER_IRIS_CPU_NOC_LPI_CONTROL); - - ret = readl_poll_timeout(core->reg_base + WRAPPER_IRIS_CPU_NOC_LPI_STATUS, - val, val & BIT(0), 200, 2000); - if (ret) - goto disable_power; - - writel(0, core->reg_base + WRAPPER_IRIS_CPU_NOC_LPI_CONTROL); - - /* Retry up to 1000 times as recommended by hardware documentation */ - do { - /* set MNoC to low power */ - writel(REQ_POWER_DOWN_PREP, core->reg_base + AON_WRAPPER_MVP_VIDEO_CTL_NOC_LPI_CONTROL); - - udelay(15); - - val = readl(core->reg_base + AON_WRAPPER_MVP_VIDEO_CTL_NOC_LPI_STATUS); - - handshake_done = val & NOC_LPI_STATUS_DONE; - handshake_busy = val & (NOC_LPI_STATUS_DENY | NOC_LPI_STATUS_ACTIVE); - - if (handshake_done || !handshake_busy) - break; - - writel(0, core->reg_base + AON_WRAPPER_MVP_VIDEO_CTL_NOC_LPI_CONTROL); - - udelay(15); - - } while (++count < 1000); - - if (!handshake_done && handshake_busy) - dev_err(core->dev, "LPI handshake timeout\n"); - - ret = readl_poll_timeout(core->reg_base + AON_WRAPPER_MVP_VIDEO_CTL_NOC_LPI_STATUS, - val, val & BIT(0), 200, 2000); - if (ret) - goto disable_power; - - writel(0, core->reg_base + AON_WRAPPER_MVP_VIDEO_CTL_NOC_LPI_CONTROL); - - writel(0, core->reg_base + WRAPPER_DEBUG_BRIDGE_LPI_CONTROL); - - ret = readl_poll_timeout(core->reg_base + WRAPPER_DEBUG_BRIDGE_LPI_STATUS, - val, val == 0, 200, 2000); - if (ret) - goto disable_power; - -disable_power: - iris_disable_unprepare_clock(core, IRIS_CTRL_CLK); - iris_disable_unprepare_clock(core, IRIS_CTRL_FREERUN_CLK); - iris_disable_unprepare_clock(core, IRIS_AXI1_CLK); - - iris_disable_power_domains(core, core->pmdomain_tbl->pd_devs[IRIS_CTRL_POWER_DOMAIN]); - - reset_control_bulk_reset(clk_rst_tbl_size, core->resets); - - return 0; -} - -static int iris_vpu35_power_on_controller(struct iris_core *core) -{ - int ret; - - ret = iris_enable_power_domains(core, core->pmdomain_tbl->pd_devs[IRIS_CTRL_POWER_DOMAIN]); - if (ret) - return ret; - - ret = iris_prepare_enable_clock(core, IRIS_AXI1_CLK); - if (ret) - goto err_disable_power; - - ret = iris_prepare_enable_clock(core, IRIS_CTRL_FREERUN_CLK); - if (ret) - goto err_disable_axi1_clk; - - ret = iris_prepare_enable_clock(core, IRIS_CTRL_CLK); - if (ret) - goto err_disable_ctrl_free_clk; - - return 0; - -err_disable_ctrl_free_clk: - iris_disable_unprepare_clock(core, IRIS_CTRL_FREERUN_CLK); -err_disable_axi1_clk: - iris_disable_unprepare_clock(core, IRIS_AXI1_CLK); -err_disable_power: - iris_disable_power_domains(core, core->pmdomain_tbl->pd_devs[IRIS_CTRL_POWER_DOMAIN]); - - return ret; -} - -static void iris_vpu35_program_bootup_registers(struct iris_core *core) -{ - writel(0x1, core->reg_base + WRAPPER_IRIS_VCODEC_VPU_WRAPPER_SPARE_0); -} - -static u64 iris_vpu3x_calculate_frequency(struct iris_inst *inst, size_t data_size) -{ - struct platform_inst_caps *caps = inst->core->iris_platform_data->inst_caps; - struct v4l2_format *inp_f = inst->fmt_src; - u32 height, width, mbs_per_second, mbpf; - u64 fw_cycles, fw_vpp_cycles; - u64 vsp_cycles, vpp_cycles; - u32 fps = DEFAULT_FPS; - - width = max(inp_f->fmt.pix_mp.width, inst->crop.width); - height = max(inp_f->fmt.pix_mp.height, inst->crop.height); - - mbpf = NUM_MBS_PER_FRAME(height, width); - mbs_per_second = mbpf * fps; - - fw_cycles = fps * caps->mb_cycles_fw; - fw_vpp_cycles = fps * caps->mb_cycles_fw_vpp; - - vpp_cycles = mult_frac(mbs_per_second, caps->mb_cycles_vpp, (u32)inst->fw_caps[PIPE].value); - /* 21 / 20 is minimum overhead factor */ - vpp_cycles += max(div_u64(vpp_cycles, 20), fw_vpp_cycles); - - /* 1.059 is multi-pipe overhead */ - if (inst->fw_caps[PIPE].value > 1) - vpp_cycles += div_u64(vpp_cycles * 59, 1000); - - vsp_cycles = fps * data_size * 8; - vsp_cycles = div_u64(vsp_cycles, 2); - /* VSP FW overhead 1.05 */ - vsp_cycles = div_u64(vsp_cycles * 21, 20); - - if (inst->fw_caps[STAGE].value == STAGE_1) - vsp_cycles = vsp_cycles * 3; - - return max3(vpp_cycles, vsp_cycles, fw_cycles); -} - const struct vpu_ops iris_vpu3_ops = { .power_off_hw = iris_vpu3_power_off_hardware, .power_on_hw = iris_vpu_power_on_hw, .power_off_controller = iris_vpu_power_off_controller, .power_on_controller = iris_vpu_power_on_controller, - .calc_freq = iris_vpu3x_calculate_frequency, + .calc_freq = iris_vpu3x_vpu4x_calculate_frequency, }; const struct vpu_ops iris_vpu33_ops = { @@ -418,14 +273,14 @@ const struct vpu_ops iris_vpu33_ops = { .power_on_hw = iris_vpu_power_on_hw, .power_off_controller = iris_vpu33_power_off_controller, .power_on_controller = iris_vpu_power_on_controller, - .calc_freq = iris_vpu3x_calculate_frequency, + .calc_freq = iris_vpu3x_vpu4x_calculate_frequency, }; const struct vpu_ops iris_vpu35_ops = { .power_off_hw = iris_vpu35_power_off_hw, .power_on_hw = iris_vpu35_power_on_hw, - .power_off_controller = iris_vpu35_power_off_controller, - .power_on_controller = iris_vpu35_power_on_controller, - .program_bootup_registers = iris_vpu35_program_bootup_registers, - .calc_freq = iris_vpu3x_calculate_frequency, + .power_off_controller = iris_vpu35_vpu4x_power_off_controller, + .power_on_controller = iris_vpu35_vpu4x_power_on_controller, + .program_bootup_registers = iris_vpu35_vpu4x_program_bootup_registers, + .calc_freq = iris_vpu3x_vpu4x_calculate_frequency, }; diff --git a/drivers/media/platform/qcom/iris/iris_vpu_common.c b/drivers/media/platform/qcom/iris/iris_vpu_common.c index 38a11002327db..8367540163f2d 100644 --- a/drivers/media/platform/qcom/iris/iris_vpu_common.c +++ b/drivers/media/platform/qcom/iris/iris_vpu_common.c @@ -8,9 +8,12 @@ #include <linux/reset.h> #include "iris_core.h" +#include "iris_instance.h" #include "iris_vpu_common.h" #include "iris_vpu_register_defines.h" +#define AON_WRAPPER_MVP_VIDEO_CTL_NOC_LPI_CONTROL (AON_BASE_OFFS + 0x2C) +#define AON_WRAPPER_MVP_VIDEO_CTL_NOC_LPI_STATUS (AON_BASE_OFFS + 0x30) #define CTRL_INIT (CPU_CS_BASE_OFFS + 0x48) #define CTRL_STATUS (CPU_CS_BASE_OFFS + 0x4C) @@ -289,6 +292,144 @@ int iris_vpu_power_on_hw(struct iris_core *core) return ret; } +int iris_vpu35_vpu4x_power_off_controller(struct iris_core *core) +{ + u32 clk_rst_tbl_size = core->iris_platform_data->clk_rst_tbl_size; + bool handshake_done, handshake_busy; + u32 count = 0, val = 0; + int ret; + + writel(MSK_SIGNAL_FROM_TENSILICA | MSK_CORE_POWER_ON, core->reg_base + CPU_CS_X2RPMH); + + writel(REQ_POWER_DOWN_PREP, core->reg_base + WRAPPER_IRIS_CPU_NOC_LPI_CONTROL); + + ret = readl_poll_timeout(core->reg_base + WRAPPER_IRIS_CPU_NOC_LPI_STATUS, + val, val & BIT(0), 200, 2000); + if (ret) + goto disable_power; + + writel(0, core->reg_base + WRAPPER_IRIS_CPU_NOC_LPI_CONTROL); + + /* Retry up to 1000 times as recommended by hardware documentation */ + do { + /* set MNoC to low power */ + writel(REQ_POWER_DOWN_PREP, core->reg_base + + AON_WRAPPER_MVP_VIDEO_CTL_NOC_LPI_CONTROL); + usleep_range(10, 20); + val = readl(core->reg_base + AON_WRAPPER_MVP_VIDEO_CTL_NOC_LPI_STATUS); + + handshake_done = val & NOC_LPI_STATUS_DONE; + handshake_busy = val & (NOC_LPI_STATUS_DENY | NOC_LPI_STATUS_ACTIVE); + + if (handshake_done || !handshake_busy) + break; + + writel(0, core->reg_base + AON_WRAPPER_MVP_VIDEO_CTL_NOC_LPI_CONTROL); + usleep_range(10, 20); + + } while (++count < 1000); + + if (!handshake_done && handshake_busy) + dev_err(core->dev, "LPI handshake timeout\n"); + + ret = readl_poll_timeout(core->reg_base + AON_WRAPPER_MVP_VIDEO_CTL_NOC_LPI_STATUS, + val, val & BIT(0), 200, 2000); + if (ret) + goto disable_power; + + writel(0, core->reg_base + AON_WRAPPER_MVP_VIDEO_CTL_NOC_LPI_CONTROL); + + writel(0, core->reg_base + WRAPPER_DEBUG_BRIDGE_LPI_CONTROL); + + readl_poll_timeout(core->reg_base + WRAPPER_DEBUG_BRIDGE_LPI_STATUS, + val, val == 0, 200, 2000); + +disable_power: + iris_disable_unprepare_clock(core, IRIS_CTRL_CLK); + iris_disable_unprepare_clock(core, IRIS_CTRL_FREERUN_CLK); + iris_disable_unprepare_clock(core, IRIS_AXI1_CLK); + + iris_disable_power_domains(core, core->pmdomain_tbl->pd_devs[IRIS_CTRL_POWER_DOMAIN]); + + reset_control_bulk_reset(clk_rst_tbl_size, core->resets); + + return 0; +} + +int iris_vpu35_vpu4x_power_on_controller(struct iris_core *core) +{ + int ret; + + ret = iris_enable_power_domains(core, core->pmdomain_tbl->pd_devs[IRIS_CTRL_POWER_DOMAIN]); + if (ret) + return ret; + + ret = iris_prepare_enable_clock(core, IRIS_AXI1_CLK); + if (ret) + goto err_disable_power; + + ret = iris_prepare_enable_clock(core, IRIS_CTRL_FREERUN_CLK); + if (ret) + goto err_disable_axi1_clk; + + ret = iris_prepare_enable_clock(core, IRIS_CTRL_CLK); + if (ret) + goto err_disable_ctrl_free_clk; + + return 0; + +err_disable_ctrl_free_clk: + iris_disable_unprepare_clock(core, IRIS_CTRL_FREERUN_CLK); +err_disable_axi1_clk: + iris_disable_unprepare_clock(core, IRIS_AXI1_CLK); +err_disable_power: + iris_disable_power_domains(core, core->pmdomain_tbl->pd_devs[IRIS_CTRL_POWER_DOMAIN]); + + return ret; +} + +void iris_vpu35_vpu4x_program_bootup_registers(struct iris_core *core) +{ + writel(0x1, core->reg_base + WRAPPER_IRIS_VCODEC_VPU_WRAPPER_SPARE_0); +} + +u64 iris_vpu3x_vpu4x_calculate_frequency(struct iris_inst *inst, size_t data_size) +{ + struct platform_inst_caps *caps = inst->core->iris_platform_data->inst_caps; + struct v4l2_format *inp_f = inst->fmt_src; + u32 height, width, mbs_per_second, mbpf; + u64 fw_cycles, fw_vpp_cycles; + u64 vsp_cycles, vpp_cycles; + u32 fps = DEFAULT_FPS; + + width = max(inp_f->fmt.pix_mp.width, inst->crop.width); + height = max(inp_f->fmt.pix_mp.height, inst->crop.height); + + mbpf = NUM_MBS_PER_FRAME(height, width); + mbs_per_second = mbpf * fps; + + fw_cycles = fps * caps->mb_cycles_fw; + fw_vpp_cycles = fps * caps->mb_cycles_fw_vpp; + + vpp_cycles = mult_frac(mbs_per_second, caps->mb_cycles_vpp, (u32)inst->fw_caps[PIPE].value); + /* 21 / 20 is minimum overhead factor */ + vpp_cycles += max(div_u64(vpp_cycles, 20), fw_vpp_cycles); + + /* 1.059 is multi-pipe overhead */ + if (inst->fw_caps[PIPE].value > 1) + vpp_cycles += div_u64(vpp_cycles * 59, 1000); + + vsp_cycles = fps * data_size * 8; + vsp_cycles = div_u64(vsp_cycles, 2); + /* VSP FW overhead 1.05 */ + vsp_cycles = div_u64(vsp_cycles * 21, 20); + + if (inst->fw_caps[STAGE].value == STAGE_1) + vsp_cycles = vsp_cycles * 3; + + return max3(vpp_cycles, vsp_cycles, fw_cycles); +} + int iris_vpu_power_on(struct iris_core *core) { u32 freq; diff --git a/drivers/media/platform/qcom/iris/iris_vpu_common.h b/drivers/media/platform/qcom/iris/iris_vpu_common.h index d636e287457ad..7cf4304604cca 100644 --- a/drivers/media/platform/qcom/iris/iris_vpu_common.h +++ b/drivers/media/platform/qcom/iris/iris_vpu_common.h @@ -33,5 +33,9 @@ int iris_vpu_power_on(struct iris_core *core); int iris_vpu_power_off_controller(struct iris_core *core); void iris_vpu_power_off_hw(struct iris_core *core); void iris_vpu_power_off(struct iris_core *core); +int iris_vpu35_vpu4x_power_off_controller(struct iris_core *core); +int iris_vpu35_vpu4x_power_on_controller(struct iris_core *core); +void iris_vpu35_vpu4x_program_bootup_registers(struct iris_core *core); +u64 iris_vpu3x_vpu4x_calculate_frequency(struct iris_inst *inst, size_t data_size); #endif -- 2.53.0 ^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH 6.18.y 3/3] media: iris: Fix power-off ordering to disable power domain after clocks 2026-11-10 19:17 ` [PATCH 6.18.y 1/3] media: iris: Move vpu register defines to common header file Sasha Levin 2026-11-10 19:17 ` [PATCH 6.18.y 2/3] media: iris: Move vpu35 specific api to common to use for vpu4 Sasha Levin @ 2026-11-10 19:17 ` Sasha Levin 1 sibling, 0 replies; 4+ messages in thread From: Sasha Levin @ 2026-11-10 19:17 UTC (permalink / raw) To: stable Cc: Vishnu Reddy, Bryan O'Donoghue, Bryan O'Donoghue, Sasha Levin From: Vishnu Reddy <busanna.reddy@oss.qualcomm.com> [ Upstream commit 9cfae7726a9a9f526e8905dbddde355be2674e3d ] In iris_vpu_power_off_hw(), iris_disable_power_domains() was called before the associated clocks (IRIS_BSE_HW_CLK, IRIS_HW_AHB_CLK, IRIS_HW_CLK) were disabled and unprepared. This reverses the correct power-down sequence: with the power domain already removed, the subsequent clk_disable_unprepare() calls end up operating on clock-controller hardware that is no longer powered, which can hang or behave unpredictably. Reorder the calls so iris_disable_power_domains() runs after all three clocks are disabled, ensuring clocks are always turned off while their power domain is still active, and mirroring the reverse of the power-on sequence. Fixes: bb8a95aa038e ("media: iris: implement power management") Cc: stable@vger.kernel.org Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Signed-off-by: Vishnu Reddy <busanna.reddy@oss.qualcomm.com> Signed-off-by: Bryan O'Donoghue <bod@kernel.org> [ sashal: Adjusted context to account for absent IRIS_HW_AHB_CLK and IRIS_BSE_HW_CLK clock-disable calls. ] Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/media/platform/qcom/iris/iris_vpu_common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/platform/qcom/iris/iris_vpu_common.c b/drivers/media/platform/qcom/iris/iris_vpu_common.c index 8367540163f2d..437b9e921fd08 100644 --- a/drivers/media/platform/qcom/iris/iris_vpu_common.c +++ b/drivers/media/platform/qcom/iris/iris_vpu_common.c @@ -220,8 +220,8 @@ int iris_vpu_power_off_controller(struct iris_core *core) void iris_vpu_power_off_hw(struct iris_core *core) { dev_pm_genpd_set_hwmode(core->pmdomain_tbl->pd_devs[IRIS_HW_POWER_DOMAIN], false); - iris_disable_power_domains(core, core->pmdomain_tbl->pd_devs[IRIS_HW_POWER_DOMAIN]); iris_disable_unprepare_clock(core, IRIS_HW_CLK); + iris_disable_power_domains(core, core->pmdomain_tbl->pd_devs[IRIS_HW_POWER_DOMAIN]); } void iris_vpu_power_off(struct iris_core *core) -- 2.53.0 ^ permalink raw reply related [flat|nested] 4+ messages in thread
end of thread, other threads:[~2026-11-10 19:17 UTC | newest] Thread overview: 4+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2026-11-07 10:07 FAILED: patch "[PATCH] media: iris: Fix power-off ordering to disable power domain after clocks" failed to apply to 6.18-stable tree Sasha Levin 2026-11-10 19:17 ` [PATCH 6.18.y 1/3] media: iris: Move vpu register defines to common header file Sasha Levin 2026-11-10 19:17 ` [PATCH 6.18.y 2/3] media: iris: Move vpu35 specific api to common to use for vpu4 Sasha Levin 2026-11-10 19:17 ` [PATCH 6.18.y 3/3] media: iris: Fix power-off ordering to disable power domain after clocks Sasha Levin
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