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| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2023-06-06 22:14:50 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2023-09-27 18:38:17 +0300 |
| commit | 0c1c7a649975a2cec5645860be76a91a3653e944 (patch) | |
| tree | 62507b54196fce1f595624d5b47da6062d17dad5 /drivers/gpu/drm/i915 | |
| parent | 357832b5cc04b063993f004eac8c332d6bba5f17 (diff) | |
| download | linux-0c1c7a649975a2cec5645860be76a91a3653e944.tar.xz | |
drm/i915/dsb: Define the contents of some intstructions bit better
Add some defines to specify what goes inside certain DSB
instructions.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230606191504.18099-6-ville.syrjala@linux.intel.com
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dsb.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c b/drivers/gpu/drm/i915/display/intel_dsb.c index 52569dc8849e..22c716ee75e2 100644 --- a/drivers/gpu/drm/i915/display/intel_dsb.c +++ b/drivers/gpu/drm/i915/display/intel_dsb.c @@ -70,17 +70,21 @@ struct intel_dsb { #define DSB_OPCODE_SHIFT 24 #define DSB_OPCODE_NOOP 0x0 #define DSB_OPCODE_MMIO_WRITE 0x1 +#define DSB_BYTE_EN 0xf +#define DSB_BYTE_EN_SHIFT 20 +#define DSB_REG_VALUE_MASK 0xfffff #define DSB_OPCODE_WAIT_USEC 0x2 -#define DSB_OPCODE_WAIT_LINES 0x3 +#define DSB_OPCODE_WAIT_SCANLINE 0x3 #define DSB_OPCODE_WAIT_VBLANKS 0x4 #define DSB_OPCODE_WAIT_DSL_IN 0x5 #define DSB_OPCODE_WAIT_DSL_OUT 0x6 +#define DSB_SCANLINE_UPPER_SHIFT 20 +#define DSB_SCANLINE_LOWER_SHIFT 0 #define DSB_OPCODE_INTERRUPT 0x7 #define DSB_OPCODE_INDEXED_WRITE 0x9 +/* see DSB_REG_VALUE_MASK */ #define DSB_OPCODE_POLL 0xA -#define DSB_BYTE_EN 0xF -#define DSB_BYTE_EN_SHIFT 20 -#define DSB_REG_VALUE_MASK 0xfffff +/* see DSB_REG_VALUE_MASK */ static bool assert_dsb_has_room(struct intel_dsb *dsb) { |