diff options
author | Dave Airlie <airlied@redhat.com> | 2024-02-13 04:32:23 +0300 |
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committer | Dave Airlie <airlied@redhat.com> | 2024-02-13 04:32:23 +0300 |
commit | b344e64fbda303b767a3844ee739a596a9c3679e (patch) | |
tree | caeec9924ea5522f008e42d89a7bf4286e759bc3 /drivers/gpu/drm/amd/display/dc/basics/conversion.c | |
parent | 0de62399883d5077fd13d0926f5128a7e038b40c (diff) | |
parent | d5597444032b2f5c8624918fb5b29be5bba78a3c (diff) | |
download | linux-b344e64fbda303b767a3844ee739a596a9c3679e.tar.xz |
Merge tag 'amd-drm-next-6.9-2024-02-09' of https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-next-6.9-2024-02-09:
amdgpu:
- Validate DMABuf imports in compute VMs
- Add RAS ACA framework
- PSP 13 fixes
- Misc code cleanups
- Replay fixes
- Atom interpretor PS, WS bounds checking
- DML2 fixes
- Audio fixes
- DCN 3.5 Z state fixes
- Remove deprecated ida_simple usage
- UBSAN fixes
- RAS fixes
- Enable seq64 infrastructure
- DC color block enablement
- Documentation updates
- DC documentation updates
- DMCUB updates
- S3 fixes
- VCN 4.0.5 fixes
- DP MST fixes
- SR-IOV fixes
amdkfd:
- Validate DMABuf imports in compute VMs
- SVM fixes
- Trap handler updates
radeon:
- Atom interpretor PS, WS bounds checking
- Misc code cleanups
UAPI:
- Bump KFD version so UMDs know that the fixes that enable the management of
VA mappings in compute VMs using the GEM_VA ioctl for DMABufs exported from KFD are present
- Add INFO query for input power. This matches the existing INFO query for average
power. Used in gaming HUDs, etc.
Example userspace: https://github.com/Umio-Yasuno/libdrm-amdgpu-sys-rs/tree/input_power
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240209221459.5453-1-alexander.deucher@amd.com
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/basics/conversion.c')
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/basics/conversion.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/basics/conversion.c b/drivers/gpu/drm/amd/display/dc/basics/conversion.c index 1090d235086a..bd1f60ecaba4 100644 --- a/drivers/gpu/drm/amd/display/dc/basics/conversion.c +++ b/drivers/gpu/drm/amd/display/dc/basics/conversion.c @@ -101,6 +101,40 @@ void convert_float_matrix( } } +static struct fixed31_32 int_frac_to_fixed_point(uint16_t arg, + uint8_t integer_bits, + uint8_t fractional_bits) +{ + struct fixed31_32 result; + uint16_t sign_mask = 1 << (fractional_bits + integer_bits); + uint16_t value_mask = sign_mask - 1; + + result.value = (long long)(arg & value_mask) << + (FIXED31_32_BITS_PER_FRACTIONAL_PART - fractional_bits); + + if (arg & sign_mask) + result = dc_fixpt_neg(result); + + return result; +} + +/** + * convert_hw_matrix - converts HW values into fixed31_32 matrix. + * @matrix: fixed point 31.32 matrix + * @reg: array of register values + * @buffer_size: size of the array of register values + * + * Converts HW register spec defined format S2D13 into a fixed-point 31.32 + * matrix. + */ +void convert_hw_matrix(struct fixed31_32 *matrix, + uint16_t *reg, + uint32_t buffer_size) +{ + for (int i = 0; i < buffer_size; ++i) + matrix[i] = int_frac_to_fixed_point(reg[i], 2, 13); +} + static uint32_t find_gcd(uint32_t a, uint32_t b) { uint32_t remainder; |