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drm/amdgpu: keep stolen memory for arct 

Any dce register read back from arct is invalid. use hard code
stolen memory for arct until we validate the s3.

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Le Ma <Le.Ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Hawking Zhang 2019-06-28 11:07:53 +08:00 committed by Alex Deucher
parent d57c3d5634
commit bfa3a9bb98
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
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@ -645,6 +645,7 @@ static bool gmc_v9_0_keep_stolen_memory(struct amdgpu_device *adev)
switch (adev->asic_type) {
case CHIP_VEGA10:
case CHIP_RAVEN:
case CHIP_ARCTURUS:
return true;
case CHIP_VEGA12:
case CHIP_VEGA20:
@ -945,7 +946,7 @@ static int gmc_v9_0_gart_init(struct amdgpu_device *adev)
static unsigned gmc_v9_0_get_vbios_fb_size(struct amdgpu_device *adev)
{
u32 d1vga_control = RREG32_SOC15(DCE, 0, mmD1VGA_CONTROL);
u32 d1vga_control;
unsigned size;
/*
@ -955,6 +956,7 @@ static unsigned gmc_v9_0_get_vbios_fb_size(struct amdgpu_device *adev)
if (gmc_v9_0_keep_stolen_memory(adev))
return 9 * 1024 * 1024;
d1vga_control = RREG32_SOC15(DCE, 0, mmD1VGA_CONTROL);
if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) {
size = 9 * 1024 * 1024; /* reserve 8MB for vga emulator and 1 MB for FB */
} else {