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drm/amdgpu/discovery: reserve discovery data at the top of VRAM

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IP Discovery data is TMR fenced by the latest PSP BL,
so we need to reserve this region.

Tested on navi10/12/14 with VBIOS integrated with latest PSP BL.

v2: use DISCOVERY_TMR_SIZE macro as bo size
    use amdgpu_bo_create_kernel_at() to allocate bo

Signed-off-by: Xiaojie Yuan <xiaojie.yuan@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Xiaojie Yuan
2019-10-10 20:44:20 +08:00
committed by Alex Deucher
parent 4e71e08592
commit 5f6a556f98
5 changed files with 22 additions and 3 deletions
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drivers/gpu/drm/amd/amdgpu/amdgpu.h
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@@ -759,6 +759,7 @@ struct amdgpu_device {
uint8_t *bios;
uint32_t bios_size;
struct amdgpu_bo *stolen_vga_memory;
struct amdgpu_bo *discovery_memory;
uint32_t bios_scratch_reg_offset;
uint32_t bios_scratch[AMDGPU_BIOS_NUM_SCRATCH];