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drm/i915/gen12: Update shadowed register table

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The bspec lists many shadowed registers (i.e., registers for which we
don't need to grab forcewake when writing) that we weren't tracking in
the driver.  Although we may not actually use all of these registers
right now, it's best to just match the bspec list exactly.

Note that the bspec also lists registers that are shadowed for various
HW-internal accesses; we can ignore those and just list the ones that
are shadowed for accesses from the IA/CPU.

Bspec: 52077
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Caz Yokoyama <caz.yokoyama@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210729054118.2458523-6-matthew.d.roper@intel.com
This commit is contained in:
Matt Roper 2021-07-28 22:41:17 -07:00
parent 0bb50de156
commit 5798a769d6
1 changed files with 14 additions and 9 deletions
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23
drivers/gpu/drm/i915/intel_uncore.c
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@ -984,23 +984,28 @@ static const struct i915_range gen11_shadowed_regs[] = {
static const struct i915_range gen12_shadowed_regs[] = {
{ .start = 0x2030, .end = 0x2030 },
{ .start = 0x2550, .end = 0x2550 },
{ .start = 0x2510, .end = 0x2550 },
{ .start = 0xA008, .end = 0xA00C },
{ .start = 0xA188, .end = 0xA188 },
{ .start = 0xA278, .end = 0xA278 },
{ .start = 0xA540, .end = 0xA56C },
{ .start = 0xC4C8, .end = 0xC4C8 },
{ .start = 0xC4D4, .end = 0xC4D4 },
{ .start = 0xC600, .end = 0xC600 },
{ .start = 0x22030, .end = 0x22030 },
{ .start = 0x22550, .end = 0x22550 },
{ .start = 0x22510, .end = 0x22550 },
{ .start = 0x1C0030, .end = 0x1C0030 },
{ .start = 0x1C0550, .end = 0x1C0550 },
{ .start = 0x1C0510, .end = 0x1C0550 },
{ .start = 0x1C4030, .end = 0x1C4030 },
{ .start = 0x1C4550, .end = 0x1C4550 },
{ .start = 0x1C4510, .end = 0x1C4550 },
{ .start = 0x1C8030, .end = 0x1C8030 },
{ .start = 0x1C8550, .end = 0x1C8550 },
{ .start = 0x1C8510, .end = 0x1C8550 },
{ .start = 0x1D0030, .end = 0x1D0030 },
{ .start = 0x1D0550, .end = 0x1D0550 },
{ .start = 0x1D0510, .end = 0x1D0550 },
{ .start = 0x1D4030, .end = 0x1D4030 },
{ .start = 0x1D4550, .end = 0x1D4550 },
{ .start = 0x1D4510, .end = 0x1D4550 },
{ .start = 0x1D8030, .end = 0x1D8030 },
{ .start = 0x1D8550, .end = 0x1D8550 },
/* TODO: Other registers are not yet used */
{ .start = 0x1D8510, .end = 0x1D8550 },
};
static const struct i915_range xehp_shadowed_regs[] = {