Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/amdgpu: Remove nbiov7.9 replay count reporting
Direct pcie replay count reporting is not available on nbio v7.9.
Reporting is done through firmware.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Acked-by: Mangesh Gadre <Mangesh.Gadre@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Fixes: 50709d18f4a6 ("drm/amdgpu: Add pci replay count to nbio v7.9")
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
authored by
Lijo Lazar
and committed by
Alex Deucher
0f566f0e
196aefea
-20
-20
drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c
-20
drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c
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#define NPS_MODE_MASK 0x000000FFL
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/* Core 0 Port 0 counter */
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#define smnPCIEP_NAK_COUNTER 0x1A340218
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static void nbio_v7_9_remap_hdp_registers(struct amdgpu_device *adev)
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{
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WREG32_SOC15(NBIO, 0, regBIF_BX0_REMAP_HDP_MEM_FLUSH_CNTL,
···
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}
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}
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static u64 nbio_v7_9_get_pcie_replay_count(struct amdgpu_device *adev)
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{
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u32 val, nak_r, nak_g;
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if (adev->flags & AMD_IS_APU)
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return 0;
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/* Get the number of NAKs received and generated */
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val = RREG32_PCIE(smnPCIEP_NAK_COUNTER);
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nak_r = val & 0xFFFF;
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nak_g = val >> 16;
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/* Add the total number of NAKs, i.e the number of replays */
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return (nak_r + nak_g);
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}
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#define MMIO_REG_HOLE_OFFSET 0x1A000
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static void nbio_v7_9_set_reg_remap(struct amdgpu_device *adev)
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.get_memory_partition_mode = nbio_v7_9_get_memory_partition_mode,
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.is_nps_switch_requested = nbio_v7_9_is_nps_switch_requested,
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.init_registers = nbio_v7_9_init_registers,
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.get_pcie_replay_count = nbio_v7_9_get_pcie_replay_count,
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.set_reg_remap = nbio_v7_9_set_reg_remap,
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};
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