Initial Contribution
msm-2.6.38: tag AU_LINUX_ANDROID_GINGERBREAD.02.03.04.00.142
Signed-off-by: Bryan Huntsman <bryanh@codeaurora.org>
diff --git a/drivers/gpu/msm/kgsl_sharedmem.h b/drivers/gpu/msm/kgsl_sharedmem.h
new file mode 100644
index 0000000..9e57e78
--- /dev/null
+++ b/drivers/gpu/msm/kgsl_sharedmem.h
@@ -0,0 +1,114 @@
+/* Copyright (c) 2002,2007-2011, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+#ifndef __KGSL_SHAREDMEM_H
+#define __KGSL_SHAREDMEM_H
+
+#include <linux/dma-mapping.h>
+
+struct kgsl_device;
+struct kgsl_process_private;
+
+#define KGSL_CACHE_OP_INV 0x01
+#define KGSL_CACHE_OP_FLUSH 0x02
+#define KGSL_CACHE_OP_CLEAN 0x03
+
+/** Set if the memdesc describes cached memory */
+#define KGSL_MEMFLAGS_CACHED 0x00000001
+
+struct kgsl_memdesc_ops {
+ unsigned long (*physaddr)(struct kgsl_memdesc *, unsigned int);
+ void (*outer_cache)(struct kgsl_memdesc *, int);
+ int (*vmflags)(struct kgsl_memdesc *);
+ int (*vmfault)(struct kgsl_memdesc *, struct vm_area_struct *,
+ struct vm_fault *);
+ void (*free)(struct kgsl_memdesc *memdesc);
+};
+
+extern struct kgsl_memdesc_ops kgsl_vmalloc_ops;
+extern struct kgsl_memdesc_ops kgsl_contiguous_ops;
+extern struct kgsl_memdesc_ops kgsl_userptr_ops;
+
+int kgsl_sharedmem_vmalloc(struct kgsl_memdesc *memdesc,
+ struct kgsl_pagetable *pagetable, size_t size);
+
+int kgsl_sharedmem_vmalloc_user(struct kgsl_memdesc *memdesc,
+ struct kgsl_pagetable *pagetable,
+ size_t size, int flags);
+
+int kgsl_sharedmem_alloc_coherent(struct kgsl_memdesc *memdesc, size_t size);
+
+int kgsl_sharedmem_ebimem_user(struct kgsl_memdesc *memdesc,
+ struct kgsl_pagetable *pagetable,
+ size_t size, int flags);
+
+int kgsl_sharedmem_ebimem(struct kgsl_memdesc *memdesc,
+ struct kgsl_pagetable *pagetable,
+ size_t size);
+
+void kgsl_sharedmem_free(struct kgsl_memdesc *memdesc);
+
+int kgsl_sharedmem_readl(const struct kgsl_memdesc *memdesc,
+ uint32_t *dst,
+ unsigned int offsetbytes);
+
+int kgsl_sharedmem_writel(const struct kgsl_memdesc *memdesc,
+ unsigned int offsetbytes,
+ uint32_t src);
+
+int kgsl_sharedmem_set(const struct kgsl_memdesc *memdesc,
+ unsigned int offsetbytes, unsigned int value,
+ unsigned int sizebytes);
+
+void kgsl_cache_range_op(struct kgsl_memdesc *memdesc, int op);
+
+void kgsl_process_init_sysfs(struct kgsl_process_private *private);
+void kgsl_process_uninit_sysfs(struct kgsl_process_private *private);
+
+int kgsl_sharedmem_init_sysfs(void);
+void kgsl_sharedmem_uninit_sysfs(void);
+
+static inline int
+kgsl_allocate(struct kgsl_memdesc *memdesc,
+ struct kgsl_pagetable *pagetable, size_t size)
+{
+#ifdef CONFIG_MSM_KGSL_MMU
+ return kgsl_sharedmem_vmalloc(memdesc, pagetable, size);
+#else
+ return kgsl_sharedmem_ebimem(memdesc, pagetable, size);
+#endif
+}
+
+static inline int
+kgsl_allocate_user(struct kgsl_memdesc *memdesc,
+ struct kgsl_pagetable *pagetable,
+ size_t size, unsigned int flags)
+{
+#ifdef CONFIG_MSM_KGSL_MMU
+ return kgsl_sharedmem_vmalloc_user(memdesc, pagetable, size, flags);
+#else
+ return kgsl_sharedmem_ebimem_user(memdesc, pagetable, size, flags);
+#endif
+}
+
+static inline int
+kgsl_allocate_contiguous(struct kgsl_memdesc *memdesc, size_t size)
+{
+ int ret = kgsl_sharedmem_alloc_coherent(memdesc, size);
+#ifndef CONFIG_MSM_KGSL_MMU
+ if (!ret)
+ memdesc->gpuaddr = memdesc->physaddr;
+#endif
+ return ret;
+}
+
+#endif /* __KGSL_SHAREDMEM_H */