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drm/amdgpu: add ATHUB IP v3.0.1 Clock Gating support

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Add ATHUB IP v3.0.1 in athub_v3_0_set_clockgating.

The regATHUB_MISC_CNTL has different offset for ATHUB IP v3.0.1,
so need to add IP version checking to use the right REG offset.

Signed-off-by: Tim Huang <tim.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Tim Huang 2022-08-09 16:26:05 +08:00 committed by Alex Deucher
parent 73c49a624a
commit cede849e9e
1 changed files with 37 additions and 5 deletions
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42
drivers/gpu/drm/amd/amdgpu/athub_v3_0.c
View File

@ -28,13 +28,44 @@
#include "navi10_enum.h"
#include "soc15_common.h"
#define regATHUB_MISC_CNTL_V3_0_1 0x00d7
#define regATHUB_MISC_CNTL_V3_0_1_BASE_IDX 0
static uint32_t athub_v3_0_get_cg_cntl(struct amdgpu_device *adev)
{
uint32_t data;
switch (adev->ip_versions[ATHUB_HWIP][0]) {
case IP_VERSION(3, 0, 1):
data = RREG32_SOC15(ATHUB, 0, regATHUB_MISC_CNTL_V3_0_1);
break;
default:
data = RREG32_SOC15(ATHUB, 0, regATHUB_MISC_CNTL);
break;
}
return data;
}
static void athub_v3_0_set_cg_cntl(struct amdgpu_device *adev, uint32_t data)
{
switch (adev->ip_versions[ATHUB_HWIP][0]) {
case IP_VERSION(3, 0, 1):
WREG32_SOC15(ATHUB, 0, regATHUB_MISC_CNTL_V3_0_1, data);
break;
default:
WREG32_SOC15(ATHUB, 0, regATHUB_MISC_CNTL, data);
break;
}
}
static void
athub_v3_0_update_medium_grain_clock_gating(struct amdgpu_device *adev,
bool enable)
{
uint32_t def, data;
def = data = RREG32_SOC15(ATHUB, 0, regATHUB_MISC_CNTL);
def = data = athub_v3_0_get_cg_cntl(adev);
if (enable && (adev->cg_flags & AMD_CG_SUPPORT_ATHUB_MGCG))
data |= ATHUB_MISC_CNTL__CG_ENABLE_MASK;
@ -42,7 +73,7 @@ athub_v3_0_update_medium_grain_clock_gating(struct amdgpu_device *adev,
data &= ~ATHUB_MISC_CNTL__CG_ENABLE_MASK;
if (def != data)
WREG32_SOC15(ATHUB, 0, regATHUB_MISC_CNTL, data);
athub_v3_0_set_cg_cntl(adev, data);
}
static void
@ -51,7 +82,7 @@ athub_v3_0_update_medium_grain_light_sleep(struct amdgpu_device *adev,
{
uint32_t def, data;
def = data = RREG32_SOC15(ATHUB, 0, regATHUB_MISC_CNTL);
def = data = athub_v3_0_get_cg_cntl(adev);
if (enable && (adev->cg_flags & AMD_CG_SUPPORT_ATHUB_LS))
data |= ATHUB_MISC_CNTL__CG_MEM_LS_ENABLE_MASK;
@ -59,7 +90,7 @@ athub_v3_0_update_medium_grain_light_sleep(struct amdgpu_device *adev,
data &= ~ATHUB_MISC_CNTL__CG_MEM_LS_ENABLE_MASK;
if (def != data)
WREG32_SOC15(ATHUB, 0, regATHUB_MISC_CNTL, data);
athub_v3_0_set_cg_cntl(adev, data);
}
int athub_v3_0_set_clockgating(struct amdgpu_device *adev,
@ -70,6 +101,7 @@ int athub_v3_0_set_clockgating(struct amdgpu_device *adev,
switch (adev->ip_versions[ATHUB_HWIP][0]) {
case IP_VERSION(3, 0, 0):
case IP_VERSION(3, 0, 1):
case IP_VERSION(3, 0, 2):
athub_v3_0_update_medium_grain_clock_gating(adev,
state == AMD_CG_STATE_GATE);
@ -88,7 +120,7 @@ void athub_v3_0_get_clockgating(struct amdgpu_device *adev, u64 *flags)
int data;
/* AMD_CG_SUPPORT_ATHUB_MGCG */
data = RREG32_SOC15(ATHUB, 0, regATHUB_MISC_CNTL);
data = athub_v3_0_get_cg_cntl(adev);
if (data & ATHUB_MISC_CNTL__CG_ENABLE_MASK)
*flags |= AMD_CG_SUPPORT_ATHUB_MGCG;