Commit a7f9d98e authored by Mario Limonciello's avatar Mario Limonciello Committed by Alex Deucher
Browse files

drm/amd: Update strapping for NBIO 2.5.0 



This helps to avoid a spurious PME event on hotplug to Azalia.

Cc: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Reported-and-tested-by: default avatar <ionut_n2001@yahoo.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=215884


Tested-by: default avatarGabriel Marcano <gabemarcano@yahoo.com>
Acked-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Link: https://lore.kernel.org/r/20241211024414.7840-1-mario.limonciello@amd.com


Signed-off-by: default avatarMario Limonciello <mario.limonciello@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 3f6f237b)
Cc: stable@vger.kernel.org
parent 85230ee3

drivers/gpu/drm/amd/amdgpu/nbio_v7_0.c

+11 −0
Original line number Diff line number Diff line
@@ -271,8 +271,19 @@ const struct nbio_hdp_flush_reg nbio_v7_0_hdp_flush_reg = { 
	.ref_and_mask_sdma1 = GPU_HDP_FLUSH_DONE__SDMA1_MASK,

};



#define regRCC_DEV0_EPF6_STRAP4                                                                         0xd304

#define regRCC_DEV0_EPF6_STRAP4_BASE_IDX                                                                5



static void nbio_v7_0_init_registers(struct amdgpu_device *adev)

{

	uint32_t data;



	switch (adev->ip_versions[NBIO_HWIP][0]) {

	case IP_VERSION(2, 5, 0):

		data = RREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF6_STRAP4) & ~BIT(23);

		WREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF6_STRAP4, data);

		break;

	}

}



#define MMIO_REG_HOLE_OFFSET (0x80000 - PAGE_SIZE)