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drm/i915: Make RING_PDP relative to engine->mmio_base 

The PDP registers are an oddity inside the set of context saved
registers in that they take the engine as a parameter to the macro and
not the mmio_base as the others do. Make it accept the engine->mmio_base
for consistency in programming the context registers.

add/remove: 0/0 grow/shrink: 2/1 up/down: 3/-32 (-29)
Function                                     old     new   delta
emit_ppgtt_update                            324     326      +2
capture                                     5102    5103      +1
execlists_init_reg_state.isra               1128    1096     -32

And similar savings later!

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190405123831.9724-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2019-04-05 13:38:31 +01:00
parent e57ce4b193
commit 6d4257284a
4 changed files with 27 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/gpu/drm/i915/i915_gem_context.c
View File

@ -1028,6 +1028,7 @@ static int emit_ppgtt_update(struct i915_request *rq, void *data)
{
struct i915_hw_ppgtt *ppgtt = rq->gem_context->ppgtt;
struct intel_engine_cs *engine = rq->engine;
u32 base = engine->mmio_base;
u32 *cs;
int i;
@ -1040,9 +1041,9 @@ static int emit_ppgtt_update(struct i915_request *rq, void *data)
*cs++ = MI_LOAD_REGISTER_IMM(2);
*cs++ = i915_mmio_reg_offset(GEN8_RING_PDP_UDW(engine, 0));
*cs++ = i915_mmio_reg_offset(GEN8_RING_PDP_UDW(base, 0));
*cs++ = upper_32_bits(pd_daddr);
*cs++ = i915_mmio_reg_offset(GEN8_RING_PDP_LDW(engine, 0));
*cs++ = i915_mmio_reg_offset(GEN8_RING_PDP_LDW(base, 0));
*cs++ = lower_32_bits(pd_daddr);
*cs++ = MI_NOOP;
@ -1056,9 +1057,9 @@ static int emit_ppgtt_update(struct i915_request *rq, void *data)
for (i = GEN8_3LVL_PDPES; i--; ) {
const dma_addr_t pd_daddr = i915_page_dir_dma_addr(ppgtt, i);
*cs++ = i915_mmio_reg_offset(GEN8_RING_PDP_UDW(engine, i));
*cs++ = i915_mmio_reg_offset(GEN8_RING_PDP_UDW(base, i));
*cs++ = upper_32_bits(pd_daddr);
*cs++ = i915_mmio_reg_offset(GEN8_RING_PDP_LDW(engine, i));
*cs++ = i915_mmio_reg_offset(GEN8_RING_PDP_LDW(base, i));
*cs++ = lower_32_bits(pd_daddr);
}
*cs++ = MI_NOOP;

15
drivers/gpu/drm/i915/i915_gpu_error.c
View File

@ -1215,20 +1215,23 @@ static void error_record_engine_registers(struct i915_gpu_state *error,
ee->vm_info.gfx_mode = I915_READ(RING_MODE_GEN7(engine));
if (IS_GEN(dev_priv, 6))
if (IS_GEN(dev_priv, 6)) {
ee->vm_info.pp_dir_base =
ENGINE_READ(engine, RING_PP_DIR_BASE_READ);
else if (IS_GEN(dev_priv, 7))
} else if (IS_GEN(dev_priv, 7)) {
ee->vm_info.pp_dir_base =
ENGINE_READ(engine, RING_PP_DIR_BASE);
else if (INTEL_GEN(dev_priv) >= 8)
ENGINE_READ(engine, RING_PP_DIR_BASE);
} else if (INTEL_GEN(dev_priv) >= 8) {
u32 base = engine->mmio_base;
for (i = 0; i < 4; i++) {
ee->vm_info.pdp[i] =
I915_READ(GEN8_RING_PDP_UDW(engine, i));
I915_READ(GEN8_RING_PDP_UDW(base, i));
ee->vm_info.pdp[i] <<= 32;
ee->vm_info.pdp[i] |=
I915_READ(GEN8_RING_PDP_LDW(engine, i));
I915_READ(GEN8_RING_PDP_LDW(base, i));
}
}
}
}

4
drivers/gpu/drm/i915/i915_reg.h
View File

@ -439,8 +439,8 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg)
#define RING_PP_DIR_DCLV(base) _MMIO((base) + 0x220)
#define PP_DIR_DCLV_2G 0xffffffff
#define GEN8_RING_PDP_UDW(engine, n) _MMIO((engine)->mmio_base + 0x270 + (n) * 8 + 4)
#define GEN8_RING_PDP_LDW(engine, n) _MMIO((engine)->mmio_base + 0x270 + (n) * 8)
#define GEN8_RING_PDP_UDW(base, n) _MMIO((base) + 0x270 + (n) * 8 + 4)
#define GEN8_RING_PDP_LDW(base, n) _MMIO((base) + 0x270 + (n) * 8)
#define GEN8_R_PWR_CLK_STATE _MMIO(0x20C8)
#define GEN8_RPCS_ENABLE (1 << 31)

21
drivers/gpu/drm/i915/intel_lrc.c
View File

@ -1451,10 +1451,11 @@ static int emit_pdps(struct i915_request *rq)
*cs++ = MI_LOAD_REGISTER_IMM(2 * GEN8_3LVL_PDPES) | MI_LRI_FORCE_POSTED;
for (i = GEN8_3LVL_PDPES; i--; ) {
const dma_addr_t pd_daddr = i915_page_dir_dma_addr(ppgtt, i);
u32 base = engine->mmio_base;
*cs++ = i915_mmio_reg_offset(GEN8_RING_PDP_UDW(engine, i));
*cs++ = i915_mmio_reg_offset(GEN8_RING_PDP_UDW(base, i));
*cs++ = upper_32_bits(pd_daddr);
*cs++ = i915_mmio_reg_offset(GEN8_RING_PDP_LDW(engine, i));
*cs++ = i915_mmio_reg_offset(GEN8_RING_PDP_LDW(base, i));
*cs++ = lower_32_bits(pd_daddr);
}
*cs++ = MI_NOOP;
@ -2729,14 +2730,14 @@ static void execlists_init_reg_state(u32 *regs,
CTX_REG(regs, CTX_CTX_TIMESTAMP, RING_CTX_TIMESTAMP(base), 0);
/* PDP values well be assigned later if needed */
CTX_REG(regs, CTX_PDP3_UDW, GEN8_RING_PDP_UDW(engine, 3), 0);
CTX_REG(regs, CTX_PDP3_LDW, GEN8_RING_PDP_LDW(engine, 3), 0);
CTX_REG(regs, CTX_PDP2_UDW, GEN8_RING_PDP_UDW(engine, 2), 0);
CTX_REG(regs, CTX_PDP2_LDW, GEN8_RING_PDP_LDW(engine, 2), 0);
CTX_REG(regs, CTX_PDP1_UDW, GEN8_RING_PDP_UDW(engine, 1), 0);
CTX_REG(regs, CTX_PDP1_LDW, GEN8_RING_PDP_LDW(engine, 1), 0);
CTX_REG(regs, CTX_PDP0_UDW, GEN8_RING_PDP_UDW(engine, 0), 0);
CTX_REG(regs, CTX_PDP0_LDW, GEN8_RING_PDP_LDW(engine, 0), 0);
CTX_REG(regs, CTX_PDP3_UDW, GEN8_RING_PDP_UDW(base, 3), 0);
CTX_REG(regs, CTX_PDP3_LDW, GEN8_RING_PDP_LDW(base, 3), 0);
CTX_REG(regs, CTX_PDP2_UDW, GEN8_RING_PDP_UDW(base, 2), 0);
CTX_REG(regs, CTX_PDP2_LDW, GEN8_RING_PDP_LDW(base, 2), 0);
CTX_REG(regs, CTX_PDP1_UDW, GEN8_RING_PDP_UDW(base, 1), 0);
CTX_REG(regs, CTX_PDP1_LDW, GEN8_RING_PDP_LDW(base, 1), 0);
CTX_REG(regs, CTX_PDP0_UDW, GEN8_RING_PDP_UDW(base, 0), 0);
CTX_REG(regs, CTX_PDP0_LDW, GEN8_RING_PDP_LDW(base, 0), 0);
if (i915_vm_is_4lvl(&ppgtt->vm)) {
/* 64b PPGTT (48bit canonical)