gpu: nvgpu: Move Linux nvgpu_mem fields

Hide the Linux specific nvgpu_mem fields so that in subsequent patches
core code can instead of using struct sg_table it can use mem_desc.
Routines for accessing system specific fields will be added as needed.

This is the first step in a fairly major overhaul of the GMMU mapping
routines. There are numerous issues with the current design (or lack
there of): massively coupled code, system dependencies, disorganization,
etc.

JIRA NVGPU-12
JIRA NVGPU-30

Change-Id: I2e7d3ae3a07468cfc17c1c642d28ed1b0952474d
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: http://git-master/r/1464076
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/drivers/gpu/nvgpu/tegra/linux/platform_gk20a_tegra.c b/drivers/gpu/nvgpu/tegra/linux/platform_gk20a_tegra.c
index 7ce66707..852dcdf2 100644
--- a/drivers/gpu/nvgpu/tegra/linux/platform_gk20a_tegra.c
+++ b/drivers/gpu/nvgpu/tegra/linux/platform_gk20a_tegra.c
@@ -138,13 +138,13 @@ static void gk20a_tegra_secure_destroy(struct gk20a *g,
 {
         DEFINE_DMA_ATTRS(attrs);
 
-        if (desc->mem.sgt) {
-                phys_addr_t pa = sg_phys(desc->mem.sgt->sgl);
+        if (desc->mem.priv.sgt) {
+                phys_addr_t pa = sg_phys(desc->mem.priv.sgt->sgl);
                 dma_free_attrs(&tegra_vpr_dev, desc->mem.size,
                         (void *)(uintptr_t)pa,
                         pa, __DMA_ATTR(attrs));
-                gk20a_free_sgtable(g, &desc->mem.sgt);
-                desc->mem.sgt = NULL;
+                gk20a_free_sgtable(g, &desc->mem.priv.sgt);
+                desc->mem.priv.sgt = NULL;
         }
 }
 
@@ -184,7 +184,7 @@ int gk20a_tegra_secure_alloc(struct device *dev,
 
         desc->destroy = gk20a_tegra_secure_destroy;
 
-        desc->mem.sgt = sgt;
+        desc->mem.priv.sgt = sgt;
         desc->mem.size = size;
         desc->mem.aperture = APERTURE_SYSMEM;