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drm/amdgpu: add set_reg_remap callback for NBIO 7.0 

This will be used to consolidate the register remap offset
configuration and fix  HDP flushes on systems non-4K pages.

Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2024-04-14 13:31:29 -04:00
parent cab62e4839
commit b2648640b9
1 changed files with 15 additions and 0 deletions
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15
drivers/gpu/drm/amd/amdgpu/nbio_v7_0.c
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@ -278,6 +278,20 @@ static void nbio_v7_0_init_registers(struct amdgpu_device *adev)
SOC15_REG_OFFSET(NBIO, 0, mmHDP_MEM_COHERENCY_FLUSH_CNTL) << 2;
}
#define MMIO_REG_HOLE_OFFSET (0x80000 - PAGE_SIZE)
static void nbio_v7_0_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, mmHDP_MEM_COHERENCY_FLUSH_CNTL) << 2;
adev->rmmio_remap.bus_addr = 0;
}
}
const struct amdgpu_nbio_funcs nbio_v7_0_funcs = {
.get_hdp_flush_req_offset = nbio_v7_0_get_hdp_flush_req_offset,
.get_hdp_flush_done_offset = nbio_v7_0_get_hdp_flush_done_offset,
@ -297,4 +311,5 @@ const struct amdgpu_nbio_funcs nbio_v7_0_funcs = {
.ih_control = nbio_v7_0_ih_control,
.init_registers = nbio_v7_0_init_registers,
.remap_hdp_registers = nbio_v7_0_remap_hdp_registers,
.set_reg_remap = nbio_v7_0_set_reg_remap,
};