Add a new quirk to denote IFPC (Inter-Frame Power Collapse) support
for a gpu. Based on this flag send the feature ctrl hfi message to
GMU to enable IFPC support.
Signed-off-by: Akhil P Oommen <akhi...@oss.qualcomm.com>
---
drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 5 +++--
drivers/gpu/drm/msm/adreno/a6xx_hfi.c | 34 +++++++++++++++++++++++++++------
drivers/gpu/drm/msm/adreno/adreno_gpu.h | 1 +
3 files changed, 32 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
index
18f5fc2c28e33d81ccc248216cc018300c81eb77..d6297cc7fe664a74224c441e877050612714a3e4
100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
@@ -1961,8 +1961,9 @@ int a6xx_gmu_init(struct a6xx_gpu *a6xx_gpu, struct
device_node *node)
if (ret)
return ret;
- /* Fow now, don't do anything fancy until we get our feet under us */
- gmu->idle_level = GMU_IDLE_STATE_ACTIVE;
+ /* Set GMU idle level */
+ gmu->idle_level = (adreno_gpu->info->quirks & ADRENO_QUIRK_IFPC) ?
+ GMU_IDLE_STATE_IFPC : GMU_IDLE_STATE_ACTIVE;
pm_runtime_enable(gmu->dev);
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_hfi.c
b/drivers/gpu/drm/msm/adreno/a6xx_hfi.c
index
8e69b1e8465711837151725c8f70e7b4b16a368e..550de6ad68effacaea09751891c2528464bdfcc5
100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_hfi.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_hfi.c
@@ -21,6 +21,7 @@ static const char * const a6xx_hfi_msg_id[] = {
HFI_MSG_ID(HFI_H2F_MSG_PERF_TABLE),
HFI_MSG_ID(HFI_H2F_MSG_TEST),
HFI_MSG_ID(HFI_H2F_MSG_START),
+ HFI_MSG_ID(HFI_H2F_FEATURE_CTRL),
HFI_MSG_ID(HFI_H2F_MSG_CORE_FW_START),
HFI_MSG_ID(HFI_H2F_MSG_GX_BW_PERF_VOTE),
HFI_MSG_ID(HFI_H2F_MSG_PREPARE_SLUMBER),
@@ -765,23 +766,40 @@ static int a6xx_hfi_send_bw_table(struct a6xx_gmu *gmu)
NULL, 0);
}
+static int a6xx_hfi_feature_ctrl_msg(struct a6xx_gmu *gmu, u32 feature, u32
enable, u32 data)
+{
+ struct a6xx_hfi_msg_feature_ctrl msg = {
+ .feature = feature,
+ .enable = enable,
+ .data = data,
+ };
+
+ return a6xx_hfi_send_msg(gmu, HFI_H2F_FEATURE_CTRL, &msg, sizeof(msg),
NULL, 0);
+}
+
+#define HFI_FEATURE_IFPC 9
+#define IFPC_LONG_HYST 0x1680
+
+static int a6xx_hfi_enable_ifpc(struct a6xx_gmu *gmu)
+{
+ if (gmu->idle_level != GMU_IDLE_STATE_IFPC)
+ return 0;
+
+ return a6xx_hfi_feature_ctrl_msg(gmu, HFI_FEATURE_IFPC, 1,
IFPC_LONG_HYST);
+}
+
#define HFI_FEATURE_ACD 12
static int a6xx_hfi_enable_acd(struct a6xx_gmu *gmu)
{
struct a6xx_hfi_acd_table *acd_table = &gmu->acd_table;
- struct a6xx_hfi_msg_feature_ctrl msg = {
- .feature = HFI_FEATURE_ACD,
- .enable = 1,
- .data = 0,
- };
int ret;
if (!acd_table->enable_by_level)
return 0;
/* Enable ACD feature at GMU */
- ret = a6xx_hfi_send_msg(gmu, HFI_H2F_FEATURE_CTRL, &msg, sizeof(msg),
NULL, 0);
+ ret = a6xx_hfi_feature_ctrl_msg(gmu, HFI_FEATURE_ACD, 1, 0);
if (ret) {
DRM_DEV_ERROR(gmu->dev, "Unable to enable ACD (%d)\n", ret);
return ret;
@@ -898,6 +916,10 @@ int a6xx_hfi_start(struct a6xx_gmu *gmu, int boot_state)
if (ret)
return ret;
+ ret = a6xx_hfi_enable_ifpc(gmu);
+ if (ret)
+ return ret;
+
ret = a6xx_hfi_send_core_fw_start(gmu);
if (ret)
return ret;
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h
b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
index
9dc93c247196d5b8b3659157f7aeea81809d4056..390fa6720d9b096f4fa7d1639645d453d43b153a
100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
@@ -59,6 +59,7 @@ enum adreno_family {
#define ADRENO_QUIRK_HAS_CACHED_COHERENT BIT(4)
#define ADRENO_QUIRK_PREEMPTION BIT(5)
#define ADRENO_QUIRK_4GB_VA BIT(6)
+#define ADRENO_QUIRK_IFPC BIT(7)
/* Helper for formating the chip_id in the way that userspace tools like
* crashdec expect.
--
2.50.1
