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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-08-10 19:12:01 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-08-10 19:12:01 +0300 |
| commit | 148b1e115eae37c9f3705691b4c45aa4cc0fa71d (patch) | |
| tree | 3f42609b3e7f53eb81830c976fadde1d7bc36a2c /drivers/gpu/drm/amd/amdgpu/si.c | |
| parent | 3ec0af7f223bab9503c4ed57d00ed34b137df476 (diff) | |
| parent | 09ef2378dc42339f3871584dc26d27da220277cb (diff) | |
| download | linux-148b1e115eae37c9f3705691b4c45aa4cc0fa71d.tar.xz | |
Merge airlied/drm-next into drm-intel-next-queued
Ben Widawsky/Daniel Stone need the extended modifier support from
drm-misc to be able to merge CCS support for i915.ko
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/si.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/si.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/si.c b/drivers/gpu/drm/amd/amdgpu/si.c index f45fb0f022b3..812a24dd1204 100644 --- a/drivers/gpu/drm/amd/amdgpu/si.c +++ b/drivers/gpu/drm/amd/amdgpu/si.c @@ -1150,6 +1150,33 @@ static bool si_read_disabled_bios(struct amdgpu_device *adev) return r; } +#define mmROM_INDEX 0x2A +#define mmROM_DATA 0x2B + +static bool si_read_bios_from_rom(struct amdgpu_device *adev, + u8 *bios, u32 length_bytes) +{ + u32 *dw_ptr; + u32 i, length_dw; + + if (bios == NULL) + return false; + if (length_bytes == 0) + return false; + /* APU vbios image is part of sbios image */ + if (adev->flags & AMD_IS_APU) + return false; + + dw_ptr = (u32 *)bios; + length_dw = ALIGN(length_bytes, 4) / 4; + /* set rom index to 0 */ + WREG32(mmROM_INDEX, 0); + for (i = 0; i < length_dw; i++) + dw_ptr[i] = RREG32(mmROM_DATA); + + return true; +} + //xxx: not implemented static int si_asic_reset(struct amdgpu_device *adev) { @@ -1206,6 +1233,7 @@ static void si_detect_hw_virtualization(struct amdgpu_device *adev) static const struct amdgpu_asic_funcs si_asic_funcs = { .read_disabled_bios = &si_read_disabled_bios, + .read_bios_from_rom = &si_read_bios_from_rom, .read_register = &si_read_register, .reset = &si_asic_reset, .set_vga_state = &si_vga_set_state, |