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authorA. Wilcox2018-07-02 05:44:52 +0200
committerAlex Deucher2018-09-19 19:37:10 +0200
commit066689161a481db3940f445b34b9dd543cb8799a (patch)
tree782882245bb96ae6ca9c4ac15d628e9bff42acf2 /drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
parentdrm/amd/amdgpu: Avoid fault when allocating an empty buffer object (diff)
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drm/amdgpu: use processed values for counting
adev->gfx.rlc has the values from rlc_hdr already processed by le32_to_cpu. Using the rlc_hdr values on big-endian machines causes a kernel Oops due to writing well outside of the array (0x24000000 instead of 0x24). Signed-off-by: A. Wilcox <AWilcox@Wilcox-Tech.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 3882689b2d8f..11e6ccdfc3d1 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -1114,14 +1114,14 @@ static int gfx_v8_0_init_microcode(struct amdgpu_device *adev)
tmp = (unsigned int *)((uintptr_t)rlc_hdr +
le32_to_cpu(rlc_hdr->reg_list_format_array_offset_bytes));
- for (i = 0 ; i < (rlc_hdr->reg_list_format_size_bytes >> 2); i++)
+ for (i = 0 ; i < (adev->gfx.rlc.reg_list_format_size_bytes >> 2); i++)
adev->gfx.rlc.register_list_format[i] = le32_to_cpu(tmp[i]);
adev->gfx.rlc.register_restore = adev->gfx.rlc.register_list_format + i;
tmp = (unsigned int *)((uintptr_t)rlc_hdr +
le32_to_cpu(rlc_hdr->reg_list_array_offset_bytes));
- for (i = 0 ; i < (rlc_hdr->reg_list_size_bytes >> 2); i++)
+ for (i = 0 ; i < (adev->gfx.rlc.reg_list_size_bytes >> 2); i++)
adev->gfx.rlc.register_restore[i] = le32_to_cpu(tmp[i]);
if (adev->asic_type >= CHIP_POLARIS10 && adev->asic_type <= CHIP_POLARIS12) {