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Message-Id: <20200416131302.322010649@linuxfoundation.org>
Date: Thu, 16 Apr 2020 15:24:47 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org,
Christian Gmeiner <christian.gmeiner@...il.com>,
Lucas Stach <l.stach@...gutronix.de>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 146/146] etnaviv: perfmon: fix total and idle HI cyleces readout
From: Christian Gmeiner <christian.gmeiner@...il.com>
[ Upstream commit 15ff4a7b584163b12b118a2c381529f05ff3a94d ]
As seen at CodeAurora's linux-imx git repo in imx_4.19.35_1.0.0 branch.
Signed-off-by: Christian Gmeiner <christian.gmeiner@...il.com>
Signed-off-by: Lucas Stach <l.stach@...gutronix.de>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/gpu/drm/etnaviv/etnaviv_perfmon.c | 43 +++++++++++++++++------
1 file changed, 32 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_perfmon.c b/drivers/gpu/drm/etnaviv/etnaviv_perfmon.c
index f86cb66a84b9c..3ce77cbad4ae3 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_perfmon.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_perfmon.c
@@ -37,13 +37,6 @@ struct etnaviv_pm_domain_meta {
u32 nr_domains;
};
-static u32 simple_reg_read(struct etnaviv_gpu *gpu,
- const struct etnaviv_pm_domain *domain,
- const struct etnaviv_pm_signal *signal)
-{
- return gpu_read(gpu, signal->data);
-}
-
static u32 perf_reg_read(struct etnaviv_gpu *gpu,
const struct etnaviv_pm_domain *domain,
const struct etnaviv_pm_signal *signal)
@@ -77,6 +70,34 @@ static u32 pipe_reg_read(struct etnaviv_gpu *gpu,
return value;
}
+static u32 hi_total_cycle_read(struct etnaviv_gpu *gpu,
+ const struct etnaviv_pm_domain *domain,
+ const struct etnaviv_pm_signal *signal)
+{
+ u32 reg = VIVS_HI_PROFILE_TOTAL_CYCLES;
+
+ if (gpu->identity.model == chipModel_GC880 ||
+ gpu->identity.model == chipModel_GC2000 ||
+ gpu->identity.model == chipModel_GC2100)
+ reg = VIVS_MC_PROFILE_CYCLE_COUNTER;
+
+ return gpu_read(gpu, reg);
+}
+
+static u32 hi_total_idle_cycle_read(struct etnaviv_gpu *gpu,
+ const struct etnaviv_pm_domain *domain,
+ const struct etnaviv_pm_signal *signal)
+{
+ u32 reg = VIVS_HI_PROFILE_IDLE_CYCLES;
+
+ if (gpu->identity.model == chipModel_GC880 ||
+ gpu->identity.model == chipModel_GC2000 ||
+ gpu->identity.model == chipModel_GC2100)
+ reg = VIVS_HI_PROFILE_TOTAL_CYCLES;
+
+ return gpu_read(gpu, reg);
+}
+
static const struct etnaviv_pm_domain doms_3d[] = {
{
.name = "HI",
@@ -86,13 +107,13 @@ static const struct etnaviv_pm_domain doms_3d[] = {
.signal = (const struct etnaviv_pm_signal[]) {
{
"TOTAL_CYCLES",
- VIVS_HI_PROFILE_TOTAL_CYCLES,
- &simple_reg_read
+ 0,
+ &hi_total_cycle_read
},
{
"IDLE_CYCLES",
- VIVS_HI_PROFILE_IDLE_CYCLES,
- &simple_reg_read
+ 0,
+ &hi_total_idle_cycle_read
},
{
"AXI_CYCLES_READ_REQUEST_STALLED",
--
2.20.1
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