[PATCH RFT 04/14] drm/msm/a6xx: Get a handle to the common UBWC config

[Konrad Dybcio]

From: Konrad Dybcio <konrad.dyb...@oss.qualcomm.com>

Start the great despaghettification by getting a pointer to the common
UBWC configuration, which houses e.g. UBWC versions that we need to
make decisions.

Signed-off-by: Konrad Dybcio <konrad.dyb...@oss.qualcomm.com>
---
 drivers/gpu/drm/msm/adreno/a6xx_gpu.c   | 16 ++++++++++++++--
 drivers/gpu/drm/msm/adreno/adreno_gpu.c |  6 ++++++
 drivers/gpu/drm/msm/adreno/adreno_gpu.h |  3 +++
 3 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c 
b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index 
b161b5cd991fc645dfcd69754b82be9691775ffe..89eb725f0950f3679d6214366cfbd22d5bcf4bc7
 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -585,8 +585,13 @@ static void a6xx_set_cp_protect(struct msm_gpu *gpu)
        gpu_write(gpu, REG_A6XX_CP_PROTECT(protect->count_max - 1), 
protect->regs[i]);
 }
 
-static void a6xx_calc_ubwc_config(struct adreno_gpu *gpu)
+static int a6xx_calc_ubwc_config(struct adreno_gpu *gpu)
 {
+       /* Inherit the common config and make some necessary fixups */
+       gpu->common_ubwc_cfg = qcom_ubwc_config_get_data();
+       if (IS_ERR(gpu->common_ubwc_cfg))
+               return -EINVAL;
+
        gpu->ubwc_config.rgb565_predicator = 0;
        gpu->ubwc_config.uavflagprd_inv = 0;
        gpu->ubwc_config.min_acc_len = 0;
@@ -663,6 +668,8 @@ static void a6xx_calc_ubwc_config(struct adreno_gpu *gpu)
                gpu->ubwc_config.highest_bank_bit = 1;
                gpu->ubwc_config.min_acc_len = 1;
        }
+
+       return 0;
 }
 
 static void a6xx_set_ubwc_config(struct msm_gpu *gpu)
@@ -2540,7 +2547,12 @@ struct msm_gpu *a6xx_gpu_init(struct drm_device *dev)
                msm_mmu_set_fault_handler(gpu->aspace->mmu, gpu,
                                a6xx_fault_handler);
 
-       a6xx_calc_ubwc_config(adreno_gpu);
+       ret = a6xx_calc_ubwc_config(adreno_gpu);
+       if (ret) {
+               a6xx_destroy(&(a6xx_gpu->base.base));
+               return ERR_PTR(ret);
+       }
+
        /* Set up the preemption specific bits and pieces for each ringbuffer */
        a6xx_preempt_init(gpu);
 
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c 
b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
index 
2348ffb35f7eb73a26da47881901d9111dca1ad9..b7f7eb8dcb272394dce8ed1e68310a394c1734a9
 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
@@ -1149,6 +1149,12 @@ int adreno_gpu_init(struct drm_device *drm, struct 
platform_device *pdev,
                speedbin = 0xffff;
        adreno_gpu->speedbin = (uint16_t) (0xffff & speedbin);
 
+       adreno_gpu->common_ubwc_cfg = devm_kzalloc(dev,
+                                                  
sizeof(*adreno_gpu->common_ubwc_cfg),
+                                                  GFP_KERNEL);
+       if (!adreno_gpu->common_ubwc_cfg)
+               return -ENOMEM;
+
        gpu_name = devm_kasprintf(dev, GFP_KERNEL, "%"ADRENO_CHIPID_FMT,
                        ADRENO_CHIPID_ARGS(config->chip_id));
        if (!gpu_name)
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h 
b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
index 
a8f4bf416e64fadbd1c61c991db13d539581e324..06be95d3efaee94e4107a484ad3132e0a6a9ea46
 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
@@ -12,6 +12,8 @@
 #include <linux/firmware.h>
 #include <linux/iopoll.h>
 
+#include <linux/soc/qcom/ubwc.h>
+
 #include "msm_gpu.h"
 
 #include "adreno_common.xml.h"
@@ -243,6 +245,7 @@ struct adreno_gpu {
                 */
                u32 macrotile_mode;
        } ubwc_config;
+       const struct qcom_ubwc_cfg_data *common_ubwc_cfg;
 
        /*
         * Register offsets are different between some GPUs.

-- 
2.49.0