From: Alex Deucher Date: Sun, 14 Apr 2024 17:16:03 +0000 (-0400) Subject: drm/amdgpu: add set_reg_remap callback for NBIO 6.1 X-Git-Tag: v6.11-rc1~141^2~25^2~300 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=cab62e4839d50bba1f0b15e6c4358e962985fb02;p=thirdparty%2Fkernel%2Flinux.git drm/amdgpu: add set_reg_remap callback for NBIO 6.1 This will be used to consolidate the register remap offset configuration and fix HDP flushes on systems non-4K pages. Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c b/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c index 37615a77287bc..5dc8663a29e95 100644 --- a/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c @@ -394,6 +394,21 @@ static void nbio_v6_1_program_aspm(struct amdgpu_device *adev) #endif } +#define MMIO_REG_HOLE_OFFSET (0x80000 - PAGE_SIZE) + +static void nbio_v6_1_set_reg_remap(struct amdgpu_device *adev) +{ + if (!amdgpu_sriov_vf(adev) && (PAGE_SIZE <= 4096)) { + adev->rmmio_remap.reg_offset = MMIO_REG_HOLE_OFFSET; + adev->rmmio_remap.bus_addr = adev->rmmio_base + MMIO_REG_HOLE_OFFSET; + } else { + adev->rmmio_remap.reg_offset = + SOC15_REG_OFFSET(NBIO, 0, + mmBIF_BX_DEV0_EPF0_VF0_HDP_MEM_COHERENCY_FLUSH_CNTL) << 2; + adev->rmmio_remap.bus_addr = 0; + } +} + const struct amdgpu_nbio_funcs nbio_v6_1_funcs = { .get_hdp_flush_req_offset = nbio_v6_1_get_hdp_flush_req_offset, .get_hdp_flush_done_offset = nbio_v6_1_get_hdp_flush_done_offset, @@ -412,5 +427,6 @@ const struct amdgpu_nbio_funcs nbio_v6_1_funcs = { .ih_control = nbio_v6_1_ih_control, .init_registers = nbio_v6_1_init_registers, .remap_hdp_registers = nbio_v6_1_remap_hdp_registers, - .program_aspm = nbio_v6_1_program_aspm, + .program_aspm = nbio_v6_1_program_aspm, + .set_reg_remap = nbio_v6_1_set_reg_remap, };