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drm/amdgpu:impl RREG32 no kiq version

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some registers are PF & VF copy, and we can safely use
mmio method to access them.

and sometime we are forbid to use kiq to access registers
for example in INTR context.

we need a MACRO that always disable KIQ for regs accessing

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Monk Liu
2017-01-25 15:07:40 +08:00
committed by Alex Deucher
parent b85c9d2a3b
commit 15d72fd745
2 changed files with 20 additions and 13 deletions
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12
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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@@ -90,16 +90,16 @@ bool amdgpu_device_is_px(struct drm_device *dev)
* MMIO register access helper functions.
*/
uint32_t amdgpu_mm_rreg(struct amdgpu_device *adev, uint32_t reg,
bool always_indirect)
uint32_t acc_flags)
{
uint32_t ret;
if (amdgpu_sriov_runtime(adev)) {
if (!(acc_flags & AMDGPU_REGS_NO_KIQ) && amdgpu_sriov_runtime(adev)) {
BUG_ON(in_interrupt());
return amdgpu_virt_kiq_rreg(adev, reg);
}
if ((reg * 4) < adev->rmmio_size && !always_indirect)
if ((reg * 4) < adev->rmmio_size && !(acc_flags & AMDGPU_REGS_IDX))
ret = readl(((void __iomem *)adev->rmmio) + (reg * 4));
else {
unsigned long flags;
@@ -114,16 +114,16 @@ uint32_t amdgpu_mm_rreg(struct amdgpu_device *adev, uint32_t reg,
}
void amdgpu_mm_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v,
bool always_indirect)
uint32_t acc_flags)
{
trace_amdgpu_mm_wreg(adev->pdev->device, reg, v);
if (amdgpu_sriov_runtime(adev)) {
if (!(acc_flags & AMDGPU_REGS_NO_KIQ) && amdgpu_sriov_runtime(adev)) {
BUG_ON(in_interrupt());
return amdgpu_virt_kiq_wreg(adev, reg, v);
}
if ((reg * 4) < adev->rmmio_size && !always_indirect)
if ((reg * 4) < adev->rmmio_size && !(acc_flags & AMDGPU_REGS_IDX))
writel(v, ((void __iomem *)adev->rmmio) + (reg * 4));
else {
unsigned long flags;