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authorAlex Deucher <alexdeucher@gmail.com>2015-03-04 00:18:38 -0500
committerDave Airlie <airlied@redhat.com>2015-03-05 09:04:39 +1000
commit54c4cd68ed7abd9f245722bee39464d04ddb4cfd (patch)
tree14f301bf2259f93b8a44b1afdb46dfd40f9a721d
parentdrm/mm: Support 4 GiB and larger ranges (diff)
downloadlinux-dev-54c4cd68ed7abd9f245722bee39464d04ddb4cfd.tar.xz
linux-dev-54c4cd68ed7abd9f245722bee39464d04ddb4cfd.zip
drm/ttm: device address space != CPU address space
We need to store device offsets in 64 bit as the device address space may be larger than the CPU's. Fixes GPU init failures on radeons with 4GB or more of vram on 32 bit kernels. We put vram at the start of the GPU's address space so the gart aperture starts at 4 GB causing all GPU addresses in the gart aperture to get truncated. bug: https://bugs.freedesktop.org/show_bug.cgi?id=89072 [airlied: fix warning on nouveau build] Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: thellstrom@vmware.com Acked-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to '')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_fbcon.c2
-rw-r--r--drivers/gpu/drm/ttm/ttm_bo.c2
-rw-r--r--include/drm/ttm/ttm_bo_api.h2
-rw-r--r--include/drm/ttm/ttm_bo_driver.h2
4 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
index 79924e4b1b49..6751553abe4a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
@@ -418,7 +418,7 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
nouveau_fbcon_zfill(dev, fbcon);
/* To allow resizeing without swapping buffers */
- NV_INFO(drm, "allocated %dx%d fb: 0x%lx, bo %p\n",
+ NV_INFO(drm, "allocated %dx%d fb: 0x%llx, bo %p\n",
nouveau_fb->base.width, nouveau_fb->base.height,
nvbo->bo.offset, nvbo);
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index d395b0bef73b..8d9b7de25613 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -74,7 +74,7 @@ static void ttm_mem_type_debug(struct ttm_bo_device *bdev, int mem_type)
pr_err(" has_type: %d\n", man->has_type);
pr_err(" use_type: %d\n", man->use_type);
pr_err(" flags: 0x%08X\n", man->flags);
- pr_err(" gpu_offset: 0x%08lX\n", man->gpu_offset);
+ pr_err(" gpu_offset: 0x%08llX\n", man->gpu_offset);
pr_err(" size: %llu\n", man->size);
pr_err(" available_caching: 0x%08X\n", man->available_caching);
pr_err(" default_caching: 0x%08X\n", man->default_caching);
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index 0ccf7f267ff9..c768ddfbe53c 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -249,7 +249,7 @@ struct ttm_buffer_object {
* either of these locks held.
*/
- unsigned long offset;
+ uint64_t offset; /* GPU address space is independent of CPU word size */
uint32_t cur_placement;
struct sg_table *sg;
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index 142d752fc450..813042cede57 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -277,7 +277,7 @@ struct ttm_mem_type_manager {
bool has_type;
bool use_type;
uint32_t flags;
- unsigned long gpu_offset;
+ uint64_t gpu_offset; /* GPU address space is independent of CPU word size */
uint64_t size;
uint32_t available_caching;
uint32_t default_caching;