[PATCH 4.5 027/124] drm/amdgpu/gmc: move vram type fetching into sw_init

From: Greg Kroah-Hartman
Date: Sun Apr 17 2016 - 23:30:00 EST


4.5-stable review patch. If anyone has any objections, please let me know.

------------------

From: Alex Deucher <alexander.deucher@xxxxxxx>

commit d1518a1db31a25682ea09c4b135fa72d9883be42 upstream.

early_init gets called before atom asic init so on non-posted
cards, the vram type is not initialized.

Reviewed-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c | 16 ++++++++--------
drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c | 16 ++++++++--------
2 files changed, 16 insertions(+), 16 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
@@ -902,14 +902,6 @@ static int gmc_v7_0_early_init(void *han
gmc_v7_0_set_gart_funcs(adev);
gmc_v7_0_set_irq_funcs(adev);

- if (adev->flags & AMD_IS_APU) {
- adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
- } else {
- u32 tmp = RREG32(mmMC_SEQ_MISC0);
- tmp &= MC_SEQ_MISC0__MT__MASK;
- adev->mc.vram_type = gmc_v7_0_convert_vram_type(tmp);
- }
-
return 0;
}

@@ -930,6 +922,14 @@ static int gmc_v7_0_sw_init(void *handle
if (r)
return r;

+ if (adev->flags & AMD_IS_APU) {
+ adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
+ } else {
+ u32 tmp = RREG32(mmMC_SEQ_MISC0);
+ tmp &= MC_SEQ_MISC0__MT__MASK;
+ adev->mc.vram_type = gmc_v7_0_convert_vram_type(tmp);
+ }
+
r = amdgpu_irq_add_id(adev, 146, &adev->mc.vm_fault);
if (r)
return r;
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
@@ -856,14 +856,6 @@ static int gmc_v8_0_early_init(void *han
gmc_v8_0_set_gart_funcs(adev);
gmc_v8_0_set_irq_funcs(adev);

- if (adev->flags & AMD_IS_APU) {
- adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
- } else {
- u32 tmp = RREG32(mmMC_SEQ_MISC0);
- tmp &= MC_SEQ_MISC0__MT__MASK;
- adev->mc.vram_type = gmc_v8_0_convert_vram_type(tmp);
- }
-
return 0;
}

@@ -884,6 +876,14 @@ static int gmc_v8_0_sw_init(void *handle
if (r)
return r;

+ if (adev->flags & AMD_IS_APU) {
+ adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
+ } else {
+ u32 tmp = RREG32(mmMC_SEQ_MISC0);
+ tmp &= MC_SEQ_MISC0__MT__MASK;
+ adev->mc.vram_type = gmc_v8_0_convert_vram_type(tmp);
+ }
+
r = amdgpu_irq_add_id(adev, 146, &adev->mc.vm_fault);
if (r)
return r;