From: Hawking Zhang <Hawking.Zhang@xxxxxxx>
For aldebaran, psp firmware won't program IH_CHICKEN.
it now depends on driver to program it properly so
either bus address or gpu virtual address is just
working for ih ring.
Signed-off-by: Hawking Zhang <Hawking.Zhang@xxxxxxx>
Acked-by: Christian König <christian.koenig@xxxxxxx>
Acked-by: Felix Kuehling <Felix.Kuehling@xxxxxxx>
Reviewed-by: Dennis Li <Dennis.Li@xxxxxxx>
Reviewed-by: Feifei Xu <Feifei.Xu@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/vega20_ih.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/vega20_ih.c b/drivers/gpu/drm/amd/amdgpu/vega20_ih.c
index 5a3c867d5881..0049f048a305 100644
--- a/drivers/gpu/drm/amd/amdgpu/vega20_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/vega20_ih.c
@@ -35,6 +35,9 @@
#define MAX_REARM_RETRY 10
+#define mmIH_CHICKEN_ALDEBARAN 0x18d
+#define mmIH_CHICKEN_ALDEBARAN_BASE_IDX 0
+
static void vega20_ih_set_interrupt_funcs(struct amdgpu_device *adev);
/**
@@ -316,6 +319,18 @@ static int vega20_ih_irq_init(struct amdgpu_device *adev)
WREG32_SOC15(OSSSYS, 0, mmIH_CHICKEN, ih_chicken);
}
+ /* psp firmware won't program IH_CHICKEN for aldebaran
+ * driver needs to program it properly according to
+ * MC_SPACE type in IH_RB_CNTL */
+ if (adev->asic_type == CHIP_ALDEBARAN) {
+ ih_chicken = RREG32_SOC15(OSSSYS, 0, mmIH_CHICKEN_ALDEBARAN);
+ if (adev->irq.ih.use_bus_addr) {
+ ih_chicken = REG_SET_FIELD(ih_chicken, IH_CHICKEN,
+ MC_SPACE_GPA_ENABLE, 1);
+ }
+ WREG32_SOC15(OSSSYS, 0, mmIH_CHICKEN_ALDEBARAN, ih_chicken);
+ }
+
for (i = 0; i < ARRAY_SIZE(ih); i++) {
if (ih[i]->ring_size) {
if (i == 1)
--
2.29.2
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