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>

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 3882689..11e6ccd 100644 (file)
--- 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) {

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 75a9166..1a298f1 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -692,14 +692,14 @@ static int gfx_v9_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->gfx.rlc.is_rlc_v2_1)