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Message-Id: <20200421234127.27965-9-jonathan@marek.ca>
Date: Tue, 21 Apr 2020 19:41:26 -0400
From: Jonathan Marek <jonathan@...ek.ca>
To: freedreno@...ts.freedesktop.org
Cc: Rob Clark <robdclark@...il.com>, Sean Paul <sean@...rly.run>,
David Airlie <airlied@...ux.ie>,
Daniel Vetter <daniel@...ll.ch>,
Jordan Crouse <jcrouse@...eaurora.org>,
"Michael J. Ruhl" <michael.j.ruhl@...el.com>,
Sharat Masetty <smasetty@...eaurora.org>,
linux-arm-msm@...r.kernel.org (open list:DRM DRIVER FOR MSM ADRENO GPU),
dri-devel@...ts.freedesktop.org (open list:DRM DRIVER FOR MSM ADRENO
GPU), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v2 8/9] drm/msm/a6xx: enable GMU log
This is required for a650 to work.
Signed-off-by: Jonathan Marek <jonathan@...ek.ca>
---
drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 15 +++++++++++++++
drivers/gpu/drm/msm/adreno/a6xx_gmu.h | 1 +
drivers/gpu/drm/msm/adreno/a6xx_gmu.xml.h | 4 ++++
3 files changed, 20 insertions(+)
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
index 60ed5360fd8a..f24e436daafe 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
@@ -201,6 +201,12 @@ static int a6xx_gmu_start(struct a6xx_gmu *gmu)
u32 val;
gmu_write(gmu, REG_A6XX_GMU_CM3_SYSRESET, 1);
+
+ /* Set the log wptr index
+ * note: downstream saves the value in poweroff and restores it here
+ */
+ gmu_write(gmu, REG_A6XX_GPU_GMU_CX_GMU_PWR_COL_CP_RESP, 0);
+
gmu_write(gmu, REG_A6XX_GMU_CM3_SYSRESET, 0);
ret = gmu_poll_timeout(gmu, REG_A6XX_GMU_CM3_FW_INIT_RESULT, val,
@@ -740,6 +746,9 @@ static int a6xx_gmu_fw_start(struct a6xx_gmu *gmu, unsigned int state)
gmu_write(gmu, REG_A6XX_GMU_HFI_SFR_ADDR, chipid);
+ gmu_write(gmu, REG_A6XX_GPU_GMU_CX_GMU_PWR_COL_CP_MSG,
+ gmu->log.iova | (gmu->log.size / SZ_4K - 1));
+
/* Set up the lowest idle level on the GMU */
a6xx_gmu_power_config(gmu);
@@ -1046,6 +1055,7 @@ static void a6xx_gmu_memory_free(struct a6xx_gmu *gmu)
msm_gem_kernel_put(gmu->icache.obj, gmu->aspace, false);
msm_gem_kernel_put(gmu->dcache.obj, gmu->aspace, false);
msm_gem_kernel_put(gmu->dummy.obj, gmu->aspace, false);
+ msm_gem_kernel_put(gmu->log.obj, gmu->aspace, false);
gmu->aspace->mmu->funcs->detach(gmu->aspace->mmu);
msm_gem_address_space_put(gmu->aspace);
@@ -1450,6 +1460,11 @@ int a6xx_gmu_init(struct a6xx_gpu *a6xx_gpu, struct device_node *node)
if (ret)
goto err_memory;
+ /* Allocate memory for the GMU log region */
+ ret = a6xx_gmu_memory_alloc(gmu, &gmu->log, SZ_4K, 0);
+ if (ret)
+ goto err_memory;
+
/* Map the GMU registers */
gmu->mmio = a6xx_gmu_get_mmio(pdev, "gmu");
if (IS_ERR(gmu->mmio)) {
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.h b/drivers/gpu/drm/msm/adreno/a6xx_gmu.h
index aed02b2b7659..be65720f32cf 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.h
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.h
@@ -61,6 +61,7 @@ struct a6xx_gmu {
struct a6xx_gmu_bo icache;
struct a6xx_gmu_bo dcache;
struct a6xx_gmu_bo dummy;
+ struct a6xx_gmu_bo log;
int nr_clocks;
struct clk_bulk_data *clocks;
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.xml.h b/drivers/gpu/drm/msm/adreno/a6xx_gmu.xml.h
index b4357ea550ec..176ae94d9fe6 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.xml.h
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.xml.h
@@ -205,6 +205,10 @@ static inline uint32_t A6XX_GMU_GPU_NAP_CTRL_SID(uint32_t val)
#define REG_A6XX_GPU_GMU_CX_GMU_CX_FAL_INTF 0x000050f0
+#define REG_A6XX_GPU_GMU_CX_GMU_PWR_COL_CP_MSG 0x00005100
+
+#define REG_A6XX_GPU_GMU_CX_GMU_PWR_COL_CP_RESP 0x00005101
+
#define REG_A6XX_GMU_BOOT_KMD_LM_HANDSHAKE 0x000051f0
#define REG_A6XX_GMU_LLM_GLM_SLEEP_CTRL 0x00005157
--
2.26.1
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