The files a3xx_gpu.c and a4xx_gpu.c have ifdefs for the OCMEM support
that was missing upstream. Add two new functions (adreno_gpu_ocmem_init
and adreno_gpu_ocmem_cleanup) that removes some duplicated code. We also
need to change the ifdef check for CONFIG_MSM_OCMEM to CONFIG_QCOM_OCMEM
now that OCMEM support is upstream.

Signed-off-by: Brian Masney <masn...@onstation.org>
---
 drivers/gpu/drm/msm/adreno/a3xx_gpu.c   | 33 +++++++-------------
 drivers/gpu/drm/msm/adreno/a3xx_gpu.h   |  3 +-
 drivers/gpu/drm/msm/adreno/a4xx_gpu.c   | 30 ++++++------------
 drivers/gpu/drm/msm/adreno/a4xx_gpu.h   |  3 +-
 drivers/gpu/drm/msm/adreno/adreno_gpu.c | 41 +++++++++++++++++++++++++
 drivers/gpu/drm/msm/adreno/adreno_gpu.h | 10 ++++++
 6 files changed, 74 insertions(+), 46 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a3xx_gpu.c 
b/drivers/gpu/drm/msm/adreno/a3xx_gpu.c
index c3b4bc6e4155..72720bb2aca1 100644
--- a/drivers/gpu/drm/msm/adreno/a3xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a3xx_gpu.c
@@ -17,10 +17,6 @@
  * this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifdef CONFIG_MSM_OCMEM
-#  include <mach/ocmem.h>
-#endif
-
 #include "a3xx_gpu.h"
 
 #define A3XX_INT0_MASK \
@@ -206,9 +202,9 @@ static int a3xx_hw_init(struct msm_gpu *gpu)
                gpu_write(gpu, REG_A3XX_RBBM_GPR0_CTL, 0x00000000);
 
        /* Set the OCMEM base address for A330, etc */
-       if (a3xx_gpu->ocmem_hdl) {
+       if (a3xx_gpu->ocmem.hdl) {
                gpu_write(gpu, REG_A3XX_RB_GMEM_BASE_ADDR,
-                       (unsigned int)(a3xx_gpu->ocmem_base >> 14));
+                       (unsigned int)(a3xx_gpu->ocmem.base >> 14));
        }
 
        /* Turn on performance counters: */
@@ -329,10 +325,7 @@ static void a3xx_destroy(struct msm_gpu *gpu)
 
        adreno_gpu_cleanup(adreno_gpu);
 
-#ifdef CONFIG_MSM_OCMEM
-       if (a3xx_gpu->ocmem_base)
-               ocmem_free(OCMEM_GRAPHICS, a3xx_gpu->ocmem_hdl);
-#endif
+       adreno_gpu_ocmem_cleanup(&a3xx_gpu->ocmem);
 
        kfree(a3xx_gpu);
 }
@@ -507,17 +500,10 @@ struct msm_gpu *a3xx_gpu_init(struct drm_device *dev)
 
        /* if needed, allocate gmem: */
        if (adreno_is_a330(adreno_gpu)) {
-#ifdef CONFIG_MSM_OCMEM
-               /* TODO this is different/missing upstream: */
-               struct ocmem_buf *ocmem_hdl =
-                               ocmem_allocate(OCMEM_GRAPHICS, 
adreno_gpu->gmem);
-
-               a3xx_gpu->ocmem_hdl = ocmem_hdl;
-               a3xx_gpu->ocmem_base = ocmem_hdl->addr;
-               adreno_gpu->gmem = ocmem_hdl->len;
-               DBG("using %dK of OCMEM at 0x%08x", adreno_gpu->gmem / 1024,
-                               a3xx_gpu->ocmem_base);
-#endif
+               ret = adreno_gpu_ocmem_init(&adreno_gpu->base.pdev->dev,
+                                           adreno_gpu, &a3xx_gpu->ocmem);
+               if (ret)
+                       goto fail;
        }
 
        if (!gpu->aspace) {
@@ -530,11 +516,14 @@ struct msm_gpu *a3xx_gpu_init(struct drm_device *dev)
                 */
                DRM_DEV_ERROR(dev->dev, "No memory protection without IOMMU\n");
                ret = -ENXIO;
-               goto fail;
+               goto fail_cleanup_ocmem;
        }
 
        return gpu;
 
+fail_cleanup_ocmem:
+       adreno_gpu_ocmem_cleanup(&a3xx_gpu->ocmem);
+
 fail:
        if (a3xx_gpu)
                a3xx_destroy(&a3xx_gpu->base.base);
diff --git a/drivers/gpu/drm/msm/adreno/a3xx_gpu.h 
b/drivers/gpu/drm/msm/adreno/a3xx_gpu.h
index ab60dc9e344e..727c34f38f9e 100644
--- a/drivers/gpu/drm/msm/adreno/a3xx_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/a3xx_gpu.h
@@ -30,8 +30,7 @@ struct a3xx_gpu {
        struct adreno_gpu base;
 
        /* if OCMEM is used for GMEM: */
-       uint32_t ocmem_base;
-       void *ocmem_hdl;
+       struct adreno_ocmem ocmem;
 };
 #define to_a3xx_gpu(x) container_of(x, struct a3xx_gpu, base)
 
diff --git a/drivers/gpu/drm/msm/adreno/a4xx_gpu.c 
b/drivers/gpu/drm/msm/adreno/a4xx_gpu.c
index ab2b752566d8..b8f825107796 100644
--- a/drivers/gpu/drm/msm/adreno/a4xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a4xx_gpu.c
@@ -2,9 +2,6 @@
 /* Copyright (c) 2014 The Linux Foundation. All rights reserved.
  */
 #include "a4xx_gpu.h"
-#ifdef CONFIG_MSM_OCMEM
-#  include <soc/qcom/ocmem.h>
-#endif
 
 #define A4XX_INT0_MASK \
        (A4XX_INT0_RBBM_AHB_ERROR |        \
@@ -188,7 +185,7 @@ static int a4xx_hw_init(struct msm_gpu *gpu)
                        (1 << 30) | 0xFFFF);
 
        gpu_write(gpu, REG_A4XX_RB_GMEM_BASE_ADDR,
-                       (unsigned int)(a4xx_gpu->ocmem_base >> 14));
+                       (unsigned int)(a4xx_gpu->ocmem.base >> 14));
 
        /* Turn on performance counters: */
        gpu_write(gpu, REG_A4XX_RBBM_PERFCTR_CTL, 0x01);
@@ -318,10 +315,7 @@ static void a4xx_destroy(struct msm_gpu *gpu)
 
        adreno_gpu_cleanup(adreno_gpu);
 
-#ifdef CONFIG_MSM_OCMEM
-       if (a4xx_gpu->ocmem_base)
-               ocmem_free(OCMEM_GRAPHICS, a4xx_gpu->ocmem_hdl);
-#endif
+       adreno_gpu_ocmem_cleanup(&a4xx_gpu->ocmem);
 
        kfree(a4xx_gpu);
 }
@@ -578,17 +572,10 @@ struct msm_gpu *a4xx_gpu_init(struct drm_device *dev)
 
        /* if needed, allocate gmem: */
        if (adreno_is_a4xx(adreno_gpu)) {
-#ifdef CONFIG_MSM_OCMEM
-               /* TODO this is different/missing upstream: */
-               struct ocmem_buf *ocmem_hdl =
-                               ocmem_allocate(OCMEM_GRAPHICS, 
adreno_gpu->gmem);
-
-               a4xx_gpu->ocmem_hdl = ocmem_hdl;
-               a4xx_gpu->ocmem_base = ocmem_hdl->addr;
-               adreno_gpu->gmem = ocmem_hdl->len;
-               DBG("using %dK of OCMEM at 0x%08x", adreno_gpu->gmem / 1024,
-                               a4xx_gpu->ocmem_base);
-#endif
+               ret = adreno_gpu_ocmem_init(dev->dev, adreno_gpu,
+                                           &a4xx_gpu->ocmem);
+               if (ret)
+                       goto fail;
        }
 
        if (!gpu->aspace) {
@@ -601,11 +588,14 @@ struct msm_gpu *a4xx_gpu_init(struct drm_device *dev)
                 */
                DRM_DEV_ERROR(dev->dev, "No memory protection without IOMMU\n");
                ret = -ENXIO;
-               goto fail;
+               goto fail_cleanup_ocmem;
        }
 
        return gpu;
 
+fail_cleanup_ocmem:
+       adreno_gpu_ocmem_cleanup(&a4xx_gpu->ocmem);
+
 fail:
        if (a4xx_gpu)
                a4xx_destroy(&a4xx_gpu->base.base);
diff --git a/drivers/gpu/drm/msm/adreno/a4xx_gpu.h 
b/drivers/gpu/drm/msm/adreno/a4xx_gpu.h
index d506311ee240..a01448cba2ea 100644
--- a/drivers/gpu/drm/msm/adreno/a4xx_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/a4xx_gpu.h
@@ -16,8 +16,7 @@ struct a4xx_gpu {
        struct adreno_gpu base;
 
        /* if OCMEM is used for GMEM: */
-       uint32_t ocmem_base;
-       void *ocmem_hdl;
+       struct adreno_ocmem ocmem;
 };
 #define to_a4xx_gpu(x) container_of(x, struct a4xx_gpu, base)
 
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c 
b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
index 6f7f4114afcf..e0a9409c8a32 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
@@ -29,6 +29,10 @@
 #include "msm_gem.h"
 #include "msm_mmu.h"
 
+#ifdef CONFIG_QCOM_OCMEM
+#  include <soc/qcom/ocmem.h>
+#endif
+
 static bool zap_available = true;
 
 static int zap_shader_load_mdt(struct msm_gpu *gpu, const char *fwname,
@@ -897,6 +901,43 @@ static int adreno_get_pwrlevels(struct device *dev,
        return 0;
 }
 
+int adreno_gpu_ocmem_init(struct device *dev, struct adreno_gpu *adreno_gpu,
+                         struct adreno_ocmem *adreno_ocmem)
+{
+#ifdef CONFIG_QCOM_OCMEM
+       struct ocmem_buf *ocmem_hdl;
+       struct ocmem *ocmem;
+
+       ocmem = of_get_ocmem(dev);
+       if (!ocmem) {
+               /* This is an optional property so return success. */
+               return 0;
+       }
+
+       ocmem_hdl = ocmem_allocate(ocmem, OCMEM_GRAPHICS, adreno_gpu->gmem);
+       if (IS_ERR(ocmem_hdl))
+               return PTR_ERR(ocmem_hdl);
+
+       adreno_ocmem->ocmem = ocmem;
+       adreno_ocmem->base = ocmem_hdl->addr;
+       adreno_ocmem->hdl = ocmem_hdl;
+       adreno_gpu->gmem = ocmem_hdl->len;
+       DBG("using %dK of OCMEM at 0x%08x", adreno_gpu->gmem / 1024,
+           adreno_ocmem->base);
+#endif
+
+       return 0;
+}
+
+void adreno_gpu_ocmem_cleanup(struct adreno_ocmem *adreno_ocmem)
+{
+#ifdef CONFIG_QCOM_OCMEM
+       if (adreno_ocmem->base)
+               ocmem_free(adreno_ocmem->ocmem, OCMEM_GRAPHICS,
+                          adreno_ocmem->hdl);
+#endif
+}
+
 int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev,
                struct adreno_gpu *adreno_gpu,
                const struct adreno_gpu_funcs *funcs, int nr_rings)
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h 
b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
index 0925606ec9b5..1cd11570323b 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
@@ -136,6 +136,12 @@ struct adreno_gpu {
 };
 #define to_adreno_gpu(x) container_of(x, struct adreno_gpu, base)
 
+struct adreno_ocmem {
+       struct ocmem *ocmem;
+       uint32_t base;
+       void *hdl;
+};
+
 /* platform config data (ie. from DT, or pdata) */
 struct adreno_platform_config {
        struct adreno_rev rev;
@@ -241,6 +247,10 @@ void adreno_dump(struct msm_gpu *gpu);
 void adreno_wait_ring(struct msm_ringbuffer *ring, uint32_t ndwords);
 struct msm_ringbuffer *adreno_active_ring(struct msm_gpu *gpu);
 
+int adreno_gpu_ocmem_init(struct device *dev, struct adreno_gpu *adreno_gpu,
+                         struct adreno_ocmem *ocmem);
+void adreno_gpu_ocmem_cleanup(struct adreno_ocmem *ocmem);
+
 int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev,
                struct adreno_gpu *gpu, const struct adreno_gpu_funcs *funcs,
                int nr_rings);
-- 
2.20.1

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