Commit aa1c2b07 authored by Karol Wachowski's avatar Karol Wachowski
Browse files

accel/ivpu: Fix DCT active percent format 



The pcode MAILBOX STATUS register PARAM2 field expects DCT active
percent in U1.7 value format. Convert percentage value to this
format before writing to the register.

Fixes: a19bffb1 ("accel/ivpu: Implement DCT handling")
Reviewed-by: default avatarLizhi Hou <lizhi.hou@amd.com>
Signed-off-by: default avatarKarol Wachowski <karol.wachowski@linux.intel.com>
Link: https://lore.kernel.org/r/20251001104322.1249896-1-karol.wachowski@linux.intel.com
parent 30531e9c

drivers/accel/ivpu/ivpu_hw_btrs.c

+1 −1
Original line number Diff line number Diff line
@@ -752,7 +752,7 @@ int ivpu_hw_btrs_dct_get_request(struct ivpu_device *vdev, bool *enable) 
	}

}



void ivpu_hw_btrs_dct_set_status(struct ivpu_device *vdev, bool enable, u32 active_percent)

void ivpu_hw_btrs_dct_set_status(struct ivpu_device *vdev, bool enable, u8 active_percent)

{

	u32 val = 0;

	u32 cmd = enable ? DCT_ENABLE : DCT_DISABLE;

drivers/accel/ivpu/ivpu_hw_btrs.h

+1 −1
Original line number Diff line number Diff line
@@ -36,7 +36,7 @@ u32 ivpu_hw_btrs_dpu_freq_get(struct ivpu_device *vdev); 
bool ivpu_hw_btrs_irq_handler_mtl(struct ivpu_device *vdev, int irq);

bool ivpu_hw_btrs_irq_handler_lnl(struct ivpu_device *vdev, int irq);

int ivpu_hw_btrs_dct_get_request(struct ivpu_device *vdev, bool *enable);

void ivpu_hw_btrs_dct_set_status(struct ivpu_device *vdev, bool enable, u32 active_percent);

void ivpu_hw_btrs_dct_set_status(struct ivpu_device *vdev, bool enable, u8 active_percent);

u32 ivpu_hw_btrs_telemetry_offset_get(struct ivpu_device *vdev);

u32 ivpu_hw_btrs_telemetry_size_get(struct ivpu_device *vdev);

u32 ivpu_hw_btrs_telemetry_enable_get(struct ivpu_device *vdev);

drivers/accel/ivpu/ivpu_pm.c

+7 −2
Original line number Diff line number Diff line
@@ -502,6 +502,11 @@ void ivpu_pm_irq_dct_work_fn(struct work_struct *work) 
	else

		ret = ivpu_pm_dct_disable(vdev);



	if (!ret)

		ivpu_hw_btrs_dct_set_status(vdev, enable, vdev->pm->dct_active_percent);

	if (!ret) {

		/* Convert percent to U1.7 format */

		u8 val = DIV_ROUND_CLOSEST(vdev->pm->dct_active_percent * 128, 100);



		ivpu_hw_btrs_dct_set_status(vdev, enable, val);

	}



}