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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2020-06-02 16:48:39 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2020-06-02 23:15:33 +0100 |
| commit | dbc7e72897a4e565a69b6d3533c87cfeec4a2831 (patch) | |
| tree | aa4802a117195baa2e0011fc61eccf95ce7e307b /drivers/gpu/drm/i915/gt/intel_workarounds.c | |
| parent | 5f4ae2704d59ee02b6e6d1a20e0ecfd273ae758c (diff) | |
| download | linux-dbc7e72897a4e565a69b6d3533c87cfeec4a2831.tar.gz | |
drm/i915/gt: Make the CTX_TIMESTAMP readable on !rcs
For reasons that be, the HW only allows usersace to read its own
CTX_TIMESTAMP [context local HW runtime] on rcs. Make it available for
all by adding it to the whitelists.
v2: The change took effect from Cometlake.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200602154839.6902-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_workarounds.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_workarounds.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index 6e1accbcc045..0731bbcef06c 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -1206,6 +1206,18 @@ static void cfl_whitelist_build(struct intel_engine_cs *engine) RING_FORCE_TO_NONPRIV_RANGE_4); } +static void cml_whitelist_build(struct intel_engine_cs *engine) +{ + struct i915_wa_list *w = &engine->whitelist; + + if (engine->class != RENDER_CLASS) + whitelist_reg_ext(w, + RING_CTX_TIMESTAMP(engine->mmio_base), + RING_FORCE_TO_NONPRIV_ACCESS_RD); + + cfl_whitelist_build(engine); +} + static void cnl_whitelist_build(struct intel_engine_cs *engine) { struct i915_wa_list *w = &engine->whitelist; @@ -1256,9 +1268,15 @@ static void icl_whitelist_build(struct intel_engine_cs *engine) /* hucStatus2RegOffset */ whitelist_reg_ext(w, _MMIO(0x23B0 + engine->mmio_base), RING_FORCE_TO_NONPRIV_ACCESS_RD); + whitelist_reg_ext(w, + RING_CTX_TIMESTAMP(engine->mmio_base), + RING_FORCE_TO_NONPRIV_ACCESS_RD); break; default: + whitelist_reg_ext(w, + RING_CTX_TIMESTAMP(engine->mmio_base), + RING_FORCE_TO_NONPRIV_ACCESS_RD); break; } } @@ -1290,6 +1308,9 @@ static void tgl_whitelist_build(struct intel_engine_cs *engine) whitelist_reg(w, HIZ_CHICKEN); break; default: + whitelist_reg_ext(w, + RING_CTX_TIMESTAMP(engine->mmio_base), + RING_FORCE_TO_NONPRIV_ACCESS_RD); break; } } @@ -1307,7 +1328,9 @@ void intel_engine_init_whitelist(struct intel_engine_cs *engine) icl_whitelist_build(engine); else if (IS_CANNONLAKE(i915)) cnl_whitelist_build(engine); - else if (IS_COFFEELAKE(i915) || IS_COMETLAKE(i915)) + else if (IS_COMETLAKE(i915)) + cml_whitelist_build(engine); + else if (IS_COFFEELAKE(i915)) cfl_whitelist_build(engine); else if (IS_GEMINILAKE(i915)) glk_whitelist_build(engine); |